wip

This avoids to pass each option as individual parameter and parse them
manually (it's still "manual" in the Parcelable implementation).

Refs #824 <https://github.com/Genymobile/scrcpy/pull/824#issuecomment-780319422>

Reviewed-by: Yu-Chen Lin <npes87184@gmail.com>

.gitignore

@@ -6,3 +6,4 @@ build/
 .idea/
 .gradle/
 /x/
+local.properties

BUILD.md

@@ -254,10 +254,10 @@ You can then [run](README.md#run) _scrcpy_.
 
 ## Prebuilt server
 
- - [`scrcpy-server-v1.15`][direct-scrcpy-server]  
-   _(SHA-256: e160c46784f30566eae621cad88bfb34e124f945cb8274b8dfc615b613b86dd8)_
+ - [`scrcpy-server-v1.17`][direct-scrcpy-server]  
+   _(SHA-256: 11b5ad2d1bc9b9730fb7254a78efd71a8ff46b1938ff468e47a21b653a1b6725_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.15/scrcpy-server-v1.15
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-server-v1.17
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

FAQ.ko.md

@@ -3,16 +3,16 @@
 다음은 자주 제보되는 문제들과 그들의 현황입니다.
 
 
-### Window 운영체제에서, 디바이스가 발견되지 않습니다.
+### Windows 운영체제에서, 디바이스가 발견되지 않습니다.
 
 가장 흔한 제보는 `adb`에 발견되지 않는 디바이스 혹은 권한 관련 문제입니다.
 다음 명령어를 호출하여 모든 것들에 이상이 없는지 확인하세요:
 
     adb devices
 
-Window는 당신의 디바이스를 감지하기 위해 [drivers]가 필요할 수도 있습니다.
+Windows는 당신의 디바이스를 감지하기 위해 [드라이버]가 필요할 수도 있습니다.
 
-[drivers]: https://developer.android.com/studio/run/oem-usb.html
+[드라이버]: https://developer.android.com/studio/run/oem-usb.html
 
 
 ### 내 디바이스의 미러링만 가능하고, 디바이스와 상호작용을 할 수 없습니다.

FAQ.md

@@ -37,6 +37,8 @@ Check [stackoverflow][device-unauthorized].
 
 ### Device not detected
 
+>     adb: error: failed to get feature set: no devices/emulators found
+
 If your device is not detected, you may need some [drivers] (on Windows).
 
 [drivers]: https://developer.android.com/studio/run/oem-usb.html
@@ -197,3 +199,41 @@ scrcpy -m 1920
 scrcpy -m 1024
 scrcpy -m 800
 ```
+
+You could also try another [encoder](README.md#encoder).
+
+
+## Command line on Windows
+
+Some Windows users are not familiar with the command line. Here is how to open a
+terminal and run `scrcpy` with arguments:
+
+ 1. Press <kbd>Windows</kbd>+<kbd>r</kbd>, this opens a dialog box.
+ 2. Type `cmd` and press <kbd>Enter</kbd>, this opens a terminal.
+ 3. Go to your _scrcpy_ directory, by typing (adapt the path):
+
+    ```bat
+    cd C:\Users\user\Downloads\scrcpy-win64-xxx
+    ```
+
+    and press <kbd>Enter</kbd>
+ 4. Type your command. For example:
+
+    ```bat
+    scrcpy --record file.mkv
+    ```
+
+If you plan to always use the same arguments, create a file `myscrcpy.bat`
+(enable [show file extensions] to avoid confusion) in the `scrcpy` directory,
+containing your command. For example:
+
+```bat
+scrcpy --prefer-text --turn-screen-off --stay-awake
+```
+
+Then just double-click on that file.
+
+You could also edit (a copy of) `scrcpy-console.bat` or `scrcpy-noconsole.vbs`
+to add some arguments.
+
+[show file extensions]: https://www.howtogeek.com/205086/beginner-how-to-make-windows-show-file-extensions/

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2020 Romain Vimont
+   Copyright (C) 2018-2021 Romain Vimont
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

README.id.md

@@ -0,0 +1,699 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+# scrcpy (v1.16)
+
+Aplikasi ini menyediakan tampilan dan kontrol perangkat Android yang terhubung pada USB (atau [melalui TCP/IP][article-tcpip]). Ini tidak membutuhkan akses _root_ apa pun. Ini bekerja pada _GNU/Linux_, _Windows_ and _macOS_.
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+Ini berfokus pada:
+
+  - **keringanan** (asli, hanya menampilkan layar perangkat)
+  - **kinerja** (30~60fps)
+  - **kualitas** (1920×1080 atau lebih)
+  - **latensi** rendah ([35~70ms][lowlatency])
+  - **waktu startup rendah** (~1 detik untuk menampilkan gambar pertama)
+  - **tidak mengganggu** (tidak ada yang terpasang di perangkat)
+
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## Persyaratan
+Perangkat Android membutuhkan setidaknya API 21 (Android 5.0).
+
+Pastikan Anda [mengaktifkan debugging adb][enable-adb] pada perangkat Anda.
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+Di beberapa perangkat, Anda juga perlu mengaktifkan [opsi tambahan][control] untuk mengontrolnya menggunakan keyboard dan mouse.
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## Dapatkan aplikasinya
+
+### Linux
+
+Di Debian (_testing_ dan _sid_ untuk saat ini) dan Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+Paket [Snap] tersedia: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+Untuk Fedora, paket [COPR] tersedia: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+Untuk Arch Linux, paket [AUR] tersedia: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+Untuk Gentoo, tersedia [Ebuild]: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+Anda juga bisa [membangun aplikasi secara manual][BUILD] (jangan khawatir, tidak terlalu sulit).
+
+
+### Windows
+
+Untuk Windows, untuk kesederhanaan, arsip prebuilt dengan semua dependensi (termasuk `adb`) tersedia :
+
+ - [`scrcpy-win64-v1.16.zip`][direct-win64]  
+   _(SHA-256: 3f30dc5db1a2f95c2b40a0f5de91ec1642d9f53799250a8c529bc882bc0918f0)_
+
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.16/scrcpy-win64-v1.16.zip
+
+Ini juga tersedia di [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # jika Anda belum memilikinya
+```
+
+Dan di [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # jika Anda belum memilikinya
+```
+
+[Scoop]: https://scoop.sh
+
+Anda juga dapat [membangun aplikasi secara manual][BUILD].
+
+
+### macOS
+
+Aplikasi ini tersedia di [Homebrew]. Instal saja:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+Anda membutuhkan `adb`, dapat diakses dari `PATH` Anda. Jika Anda belum memilikinya:
+
+```bash
+brew cask install android-platform-tools
+```
+
+Anda juga dapat [membangun aplikasi secara manual][BUILD].
+
+
+## Menjalankan
+
+Pasang perangkat Android, dan jalankan:
+
+```bash
+scrcpy
+```
+
+Ini menerima argumen baris perintah, didaftarkan oleh:
+
+```bash
+scrcpy --help
+```
+
+## Fitur
+
+### Menangkap konfigurasi
+
+#### Mengurangi ukuran
+
+Kadang-kadang, berguna untuk mencerminkan perangkat Android dengan definisi yang lebih rendah untuk meningkatkan kinerja.
+
+Untuk membatasi lebar dan tinggi ke beberapa nilai (mis. 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # versi pendek
+```
+
+Dimensi lain dihitung agar rasio aspek perangkat dipertahankan.
+Dengan begitu, perangkat 1920×1080 akan dicerminkan pada 1024×576.
+
+#### Ubah kecepatan bit
+
+Kecepatan bit default adalah 8 Mbps. Untuk mengubah bitrate video (mis. Menjadi 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # versi pendek
+```
+
+#### Batasi frekuensi gambar
+
+Kecepatan bingkai pengambilan dapat dibatasi:
+
+```bash
+scrcpy --max-fps 15
+```
+
+Ini secara resmi didukung sejak Android 10, tetapi dapat berfungsi pada versi sebelumnya.
+
+#### Memotong
+
+Layar perangkat dapat dipotong untuk mencerminkan hanya sebagian dari layar.
+
+Ini berguna misalnya untuk mencerminkan hanya satu mata dari Oculus Go:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 Mengimbangi (0,0)
+```
+
+Jika `--max-size` juga ditentukan, pengubahan ukuran diterapkan setelah pemotongan.
+
+
+#### Kunci orientasi video
+
+Untuk mengunci orientasi pencerminan:
+
+```bash
+scrcpy --lock-video-orientation 0   # orientasi alami
+scrcpy --lock-video-orientation 1   # 90° berlawanan arah jarum jam
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° searah jarum jam
+```
+
+Ini mempengaruhi orientasi perekaman.
+
+
+### Rekaman
+
+Anda dapat merekam layar saat melakukan mirroring:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+Untuk menonaktifkan pencerminan saat merekam:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# berhenti merekam dengan Ctrl+C
+```
+
+"Skipped frames" are recorded, even if they are not displayed in real time (for
+performance reasons). Frames are _timestamped_ on the device, so [packet delay
+variation] does not impact the recorded file.
+
+"Frame yang dilewati" direkam, meskipun tidak ditampilkan secara real time (untuk alasan performa). Bingkai *diberi stempel waktu* pada perangkat, jadi [variasi penundaan paket] tidak memengaruhi file yang direkam.
+
+[variasi penundaan paket]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### Koneksi
+
+#### Wireless
+
+_Scrcpy_ menggunakan `adb` untuk berkomunikasi dengan perangkat, dan` adb` dapat [terhubung] ke perangkat melalui TCP / IP:
+
+1. Hubungkan perangkat ke Wi-Fi yang sama dengan komputer Anda.
+2. Dapatkan alamat IP perangkat Anda (dalam Pengaturan → Tentang ponsel → Status).
+3. Aktifkan adb melalui TCP / IP pada perangkat Anda: `adb tcpip 5555`.
+4. Cabut perangkat Anda.
+5. Hubungkan ke perangkat Anda: `adb connect DEVICE_IP: 5555` (*ganti* *`DEVICE_IP`*).
+6. Jalankan `scrcpy` seperti biasa.
+
+Mungkin berguna untuk menurunkan kecepatan bit dan definisi:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # versi pendek
+```
+
+[terhubung]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### Multi-perangkat
+
+Jika beberapa perangkat dicantumkan di `adb devices`, Anda harus menentukan _serial_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # versi pendek
+```
+
+If the device is connected over TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # versi pendek
+```
+
+Anda dapat memulai beberapa contoh _scrcpy_ untuk beberapa perangkat.
+
+#### Mulai otomatis pada koneksi perangkat
+
+Anda bisa menggunakan [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### Koneksi via SSH tunnel
+
+Untuk menyambung ke perangkat jarak jauh, dimungkinkan untuk menghubungkan klien `adb` lokal ke server `adb` jarak jauh (asalkan mereka menggunakan versi yang sama dari _adb_ protocol):
+
+```bash
+adb kill-server    # matikan server adb lokal di 5037
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 komputer_jarak_jauh_anda
+# jaga agar tetap terbuka
+```
+
+Dari terminal lain:
+
+```bash
+scrcpy
+```
+
+Untuk menghindari mengaktifkan penerusan port jarak jauh, Anda dapat memaksa sambungan maju sebagai gantinya (perhatikan `-L`, bukan` -R`):
+
+```bash
+adb kill-server    # matikan server adb lokal di 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 komputer_jarak_jauh_anda
+# jaga agar tetap terbuka
+```
+
+Dari terminal lain:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+Seperti koneksi nirkabel, mungkin berguna untuk mengurangi kualitas:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### Konfigurasi Jendela
+
+#### Judul
+
+Secara default, judul jendela adalah model perangkat. Itu bisa diubah:
+
+```bash
+scrcpy --window-title 'Perangkat Saya'
+```
+
+#### Posisi dan ukuran
+
+Posisi dan ukuran jendela awal dapat ditentukan:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### Jendela tanpa batas
+
+Untuk menonaktifkan dekorasi jendela:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### Selalu di atas
+
+Untuk menjaga jendela scrcpy selalu di atas:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### Layar penuh
+
+Aplikasi dapat dimulai langsung dalam layar penuh::
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # versi pendek
+```
+
+Layar penuh kemudian dapat diubah secara dinamis dengan <kbd>MOD</kbd>+<kbd>f</kbd>.
+
+#### Rotasi
+
+Jendela mungkin diputar:
+
+```bash
+scrcpy --rotation 1
+```
+
+Nilai yang mungkin adalah:
+ - `0`: tidak ada rotasi
+ - `1`: 90 derajat berlawanan arah jarum jam
+ - `2`: 180 derajat
+ - `3`: 90 derajat searah jarum jam
+
+Rotasi juga dapat diubah secara dinamis dengan <kbd>MOD</kbd>+<kbd>←</kbd>
+_(kiri)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(kanan)_.
+
+Perhatikan bahwa _scrcpy_ mengelola 3 rotasi berbeda::
+ - <kbd>MOD</kbd>+<kbd>r</kbd> meminta perangkat untuk beralih antara potret dan lanskap (aplikasi yang berjalan saat ini mungkin menolak, jika mendukung orientasi yang diminta).
+ - `--lock-video-orientation` mengubah orientasi pencerminan (orientasi video yang dikirim dari perangkat ke komputer). Ini mempengaruhi rekaman.
+ - `--rotation` (atau <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
+   memutar hanya konten jendela. Ini hanya mempengaruhi tampilan, bukan rekaman.
+
+
+### Opsi pencerminan lainnya
+
+#### Hanya-baca
+
+Untuk menonaktifkan kontrol (semua yang dapat berinteraksi dengan perangkat: tombol input, peristiwa mouse, seret & lepas file):
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### Layar
+
+Jika beberapa tampilan tersedia, Anda dapat memilih tampilan untuk cermin:
+
+```bash
+scrcpy --display 1
+```
+
+Daftar id tampilan dapat diambil dengan::
+
+```
+adb shell dumpsys display   # cari "mDisplayId=" di keluaran
+```
+
+Tampilan sekunder hanya dapat dikontrol jika perangkat menjalankan setidaknya Android 10 (jika tidak maka akan dicerminkan dalam hanya-baca).
+
+
+#### Tetap terjaga
+
+Untuk mencegah perangkat tidur setelah beberapa penundaan saat perangkat dicolokkan:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+Keadaan awal dipulihkan ketika scrcpy ditutup.
+
+
+#### Matikan layar
+
+Dimungkinkan untuk mematikan layar perangkat saat pencerminan mulai dengan opsi baris perintah:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+Atau dengan menekan <kbd>MOD</kbd>+<kbd>o</kbd> kapan saja.
+
+Untuk menyalakannya kembali, tekan <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+Di Android, tombol `POWER` selalu menyalakan layar. Untuk kenyamanan, jika `POWER` dikirim melalui scrcpy (melalui klik kanan atau<kbd>MOD</kbd>+<kbd>p</kbd>), itu akan memaksa untuk mematikan layar setelah penundaan kecil (atas dasar upaya terbaik).
+Tombol fisik `POWER` masih akan menyebabkan layar dihidupkan.
+
+Ini juga berguna untuk mencegah perangkat tidur:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+#### Render frame kedaluwarsa
+
+Secara default, untuk meminimalkan latensi, _scrcpy_ selalu menampilkan frame yang terakhir didekodekan tersedia, dan menghapus frame sebelumnya.
+
+Untuk memaksa rendering semua frame (dengan kemungkinan peningkatan latensi), gunakan:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### Tunjukkan sentuhan
+
+Untuk presentasi, mungkin berguna untuk menunjukkan sentuhan fisik (pada perangkat fisik).
+
+Android menyediakan fitur ini di _Opsi Pengembang_.
+
+_Scrcpy_ menyediakan opsi untuk mengaktifkan fitur ini saat mulai dan mengembalikan nilai awal saat keluar:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+Perhatikan bahwa ini hanya menunjukkan sentuhan _fisik_ (dengan jari di perangkat).
+
+
+#### Nonaktifkan screensaver
+
+Secara default, scrcpy tidak mencegah screensaver berjalan di komputer.
+
+Untuk menonaktifkannya:
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### Kontrol masukan
+
+#### Putar layar perangkat
+
+Tekan <kbd>MOD</kbd>+<kbd>r</kbd> untuk beralih antara mode potret dan lanskap.
+
+Perhatikan bahwa itu berputar hanya jika aplikasi di latar depan mendukung orientasi yang diminta.
+
+#### Salin-tempel
+
+Setiap kali papan klip Android berubah, secara otomatis disinkronkan ke papan klip komputer.
+
+Apa saja <kbd>Ctrl</kbd> pintasan diteruskan ke perangkat. Khususnya:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> biasanya salinan
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> biasanya memotong
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> biasanya menempel (setelah sinkronisasi papan klip komputer-ke-perangkat)
+
+Ini biasanya berfungsi seperti yang Anda harapkan.
+
+Perilaku sebenarnya tergantung pada aplikasi yang aktif. Sebagai contoh,
+_Termux_ mengirim SIGINT ke <kbd>Ctrl</kbd>+<kbd>c</kbd> sebagai gantinya, dan _K-9 Mail_ membuat pesan baru.
+
+Untuk menyalin, memotong dan menempel dalam kasus seperti itu (tetapi hanya didukung di Android> = 7):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> injeksi `COPY` _(salin)_
+ - <kbd>MOD</kbd>+<kbd>x</kbd> injeksi `CUT` _(potong)_
+ - <kbd>MOD</kbd>+<kbd>v</kbd> injeksi `PASTE` (setelah sinkronisasi papan klip komputer-ke-perangkat)
+
+Tambahan, <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> memungkinkan untuk memasukkan teks papan klip komputer sebagai urutan peristiwa penting. Ini berguna ketika komponen tidak menerima penempelan teks (misalnya di _Termux_), tetapi dapat merusak konten non-ASCII.
+
+**PERINGATAN:** Menempelkan papan klip komputer ke perangkat (baik melalui
+<kbd>Ctrl</kbd>+<kbd>v</kbd> or <kbd>MOD</kbd>+<kbd>v</kbd>) menyalin konten ke clipboard perangkat. Akibatnya, aplikasi Android apa pun dapat membaca kontennya. Anda harus menghindari menempelkan konten sensitif (seperti kata sandi) seperti itu.
+
+
+#### Cubit untuk memperbesar/memperkecil
+
+Untuk mensimulasikan "cubit-untuk-memperbesar/memperkecil": <kbd>Ctrl</kbd>+_klik-dan-pindah_.
+
+Lebih tepatnya, tahan <kbd>Ctrl</kbd> sambil menekan tombol klik kiri. Hingga tombol klik kiri dilepaskan, semua gerakan mouse berskala dan memutar konten (jika didukung oleh aplikasi) relatif ke tengah layar.
+
+Secara konkret, scrcpy menghasilkan kejadian sentuh tambahan dari "jari virtual" di lokasi yang dibalik melalui bagian tengah layar.
+
+
+#### Preferensi injeksi teks
+
+Ada dua jenis [peristiwa][textevents] dihasilkan saat mengetik teks:
+- _peristiwa penting_, menandakan bahwa tombol ditekan atau dilepaskan;
+- _peristiwa teks_, menandakan bahwa teks telah dimasukkan.
+
+Secara default, huruf dimasukkan menggunakan peristiwa kunci, sehingga keyboard berperilaku seperti yang diharapkan dalam game (biasanya untuk tombol WASD).
+
+Tapi ini mungkin [menyebabkan masalah][prefertext]. Jika Anda mengalami masalah seperti itu, Anda dapat menghindarinya dengan:
+
+```bash
+scrcpy --prefer-text
+```
+
+(tapi ini akan merusak perilaku keyboard dalam game)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### Ulangi kunci
+
+Secara default, menahan tombol akan menghasilkan peristiwa kunci yang berulang. Ini dapat menyebabkan masalah kinerja di beberapa game, di mana acara ini tidak berguna.
+
+Untuk menghindari penerusan peristiwa penting yang berulang:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+### Seret/jatuhkan file
+
+#### Pasang APK
+
+Untuk menginstal APK, seret & lepas file APK (diakhiri dengan `.apk`) ke jendela _scrcpy_.
+
+Tidak ada umpan balik visual, log dicetak ke konsol.
+
+
+#### Dorong file ke perangkat
+
+Untuk mendorong file ke `/sdcard/` di perangkat, seret & jatuhkan file (non-APK) ke jendela _scrcpy_.
+
+Tidak ada umpan balik visual, log dicetak ke konsol.
+
+Direktori target dapat diubah saat mulai:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### Penerusan audio
+
+Audio tidak diteruskan oleh _scrcpy_. Gunakan [sndcpy].
+
+Lihat juga [Masalah #14].
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[Masalah #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## Pintasan
+
+Dalam daftar berikut, <kbd>MOD</kbd> adalah pengubah pintasan. Secara default, ini (kiri) <kbd>Alt</kbd> atau (kiri) <kbd>Super</kbd>.
+
+Ini dapat diubah menggunakan `--shortcut-mod`. Kunci yang memungkinkan adalah `lctrl`,`rctrl`, `lalt`,` ralt`, `lsuper` dan` rsuper`. Sebagai contoh:
+
+```bash
+# gunakan RCtrl untuk jalan pintas
+scrcpy --shortcut-mod=rctrl
+
+# gunakan baik LCtrl+LAlt atau LSuper untuk jalan pintas
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> biasanya adalah <kbd>Windows</kbd> atau <kbd>Cmd</kbd> key._
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Aksi                                                  |   Pintasan
+ | ------------------------------------------------------|:-----------------------------
+ | Alihkan mode layar penuh                              | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | Putar layar kiri                                      | <kbd>MOD</kbd>+<kbd>←</kbd> _(kiri)_
+ | Putar layar kanan                                     | <kbd>MOD</kbd>+<kbd>→</kbd> _(kanan)_
+ | Ubah ukuran jendela menjadi 1:1 (piksel-sempurna)     | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | Ubah ukuran jendela menjadi hapus batas hitam         | <kbd>MOD</kbd>+<kbd>w</kbd> \| _klik-dua-kali¹_
+ | Klik `HOME`                                           | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Klik-tengah_
+ | Klik `BACK`                                           | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Klik-kanan²_
+ | Klik `APP_SWITCH`                                     | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Klik `MENU` (buka kunci layar)                        | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | Klik `VOLUME_UP`                                      | <kbd>MOD</kbd>+<kbd>↑</kbd> _(naik)_
+ | Klik `VOLUME_DOWN`                                    | <kbd>MOD</kbd>+<kbd>↓</kbd> _(turun)_
+ | Klik `POWER`                                          | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | Menyalakan                                            | _Klik-kanan²_
+ | Matikan layar perangkat (tetap mirroring)             | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | Hidupkan layar perangkat                              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | Putar layar perangkat                                 | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | Luaskan panel notifikasi                              | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | Ciutkan panel notifikasi                              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Menyalin ke papan klip³                               | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Potong ke papan klip³                                 | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Sinkronkan papan klip dan tempel³                     | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Masukkan teks papan klip komputer                     | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | Mengaktifkan/menonaktifkan penghitung FPS (di stdout) | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Cubit-untuk-memperbesar/memperkecil                   | <kbd>Ctrl</kbd>+_klik-dan-pindah_
+
+_¹Klik-dua-kali pada batas hitam untuk menghapusnya._  
+_²Klik-kanan akan menghidupkan layar jika mati, tekan BACK jika tidak._  
+_³Hanya di Android >= 7._
+
+Semua <kbd>Ctrl</kbd>+_key_ pintasan diteruskan ke perangkat, demikian adanya
+ditangani oleh aplikasi aktif.
+
+
+## Jalur kustom
+
+Untuk menggunakan biner _adb_ tertentu, konfigurasikan jalurnya di variabel lingkungan `ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+Untuk mengganti jalur file `scrcpy-server`, konfigurasikan jalurnya di
+`SCRCPY_SERVER_PATH`.
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## Mengapa _scrcpy_?
+
+Seorang kolega menantang saya untuk menemukan nama yang tidak dapat diucapkan seperti [gnirehtet].
+
+[`strcpy`] menyalin sebuah **str**ing; `scrcpy` menyalin sebuah **scr**een.
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## Bagaimana Cara membangun?
+
+Lihat [BUILD].
+
+[BUILD]: BUILD.md
+
+
+## Masalah umum
+
+Lihat [FAQ](FAQ.md).
+
+
+## Pengembang
+
+Baca [halaman pengembang].
+
+[halaman pengembang]: DEVELOP.md
+
+
+## Lisensi
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## Artikel
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+

README.ko.md

@@ -477,7 +477,7 @@ _²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상
 ## 라이선스
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 Romain Vimont
+    Copyright (C) 2018-2021 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.md

@@ -1,4 +1,6 @@
-# scrcpy (v1.15)
+# scrcpy (v1.17)
+
+[Read in another language](#translations)
 
 This application provides display and control of Android devices connected on
 USB (or [over TCP/IP][article-tcpip]). It does not require any _root_ access.
@@ -34,6 +36,7 @@ control it using keyboard and mouse.
 
 ## Get the app
 
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
 
 ### Linux
 
@@ -74,10 +77,10 @@ hard).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.15.zip`][direct-win64]  
-   _(SHA-256: dd514bb591e63ef4cd52a53c30f1153a28f59722d64690eb07bd017849edcba2)_
+ - [`scrcpy-win64-v1.17.zip`][direct-win64]  
+   _(SHA-256: 8b9e57993c707367ed10ebfe0e1ef563c7a29d9af4a355cd8b6a52a317c73eea)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.15/scrcpy-win64-v1.15.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.17/scrcpy-win64-v1.17.zip
 
 It is also available in [Chocolatey]:
 
@@ -113,6 +116,10 @@ brew install scrcpy
 You need `adb`, accessible from your `PATH`. If you don't have it yet:
 
 ```bash
+# Homebrew >= 2.6.0
+brew install --cask android-platform-tools
+
+# Homebrew < 2.6.0
 brew cask install android-platform-tools
 ```
 
@@ -191,6 +198,7 @@ If `--max-size` is also specified, resizing is applied after cropping.
 To lock the orientation of the mirroring:
 
 ```bash
+scrcpy --lock-video-orientation     # initial (current) orientation
 scrcpy --lock-video-orientation 0   # natural orientation
 scrcpy --lock-video-orientation 1   # 90° counterclockwise
 scrcpy --lock-video-orientation 2   # 180°
@@ -199,8 +207,28 @@ scrcpy --lock-video-orientation 3   # 90° clockwise
 
 This affects recording orientation.
 
+The [window may also be rotated](#rotation) independently.
 
-### Recording
+
+#### Encoder
+
+Some devices have more than one encoder, and some of them may cause issues or
+crash. It is possible to select a different encoder:
+
+```bash
+scrcpy --encoder OMX.qcom.video.encoder.avc
+```
+
+To list the available encoders, you could pass an invalid encoder name, the
+error will give the available encoders:
+
+```bash
+scrcpy --encoder _
+```
+
+### Capture
+
+#### Recording
 
 It is possible to record the screen while mirroring:
 
@@ -224,6 +252,58 @@ variation] does not impact the recorded file.
 [packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
 
 
+#### v4l2loopback
+
+On Linux, it is possible to send the video stream to a v4l2 loopback device, so
+that the Android device can be opened like a webcam by any v4l2-capable tool.
+
+The module `v4l2loopback` must be installed:
+
+```bash
+sudo apt install v4l2loopback-dkms
+```
+
+To create a v4l2 device:
+
+```bash
+sudo modprobe v4l2loopback
+```
+
+This will create a new video device in `/dev/videoN`, where `N` is an integer
+(more [options](https://github.com/umlaeute/v4l2loopback#options) are available
+to create several devices or devices with specific IDs).
+
+To list the enabled devices:
+
+```bash
+# requires v4l-utils package
+v4l2-ctl --list-devices
+
+# simple but might be sufficient
+ls /dev/video*
+```
+
+To start scrcpy using a v4l2 sink:
+
+```bash
+scrcpy --v4l2-sink=/dev/videoN
+scrcpy --v4l2-sink=/dev/videoN -N  # --no-display to disable mirroring window
+```
+
+(replace `N` by the device ID, check with `ls /dev/video*`)
+
+Once enabled, you can open your video stream with a v4l2-capable tool:
+
+```bash
+ffplay -i /dev/videoN
+vlc v4l2:///dev/videoN   # VLC might add some buffering delay
+```
+
+For example, you could capture the video within [OBS].
+
+[OBS]: https://obsproject.com/fr
+
+
 ### Connection
 
 #### Wireless
@@ -232,7 +312,13 @@ _Scrcpy_ uses `adb` to communicate with the device, and `adb` can [connect] to a
 device over TCP/IP:
 
 1. Connect the device to the same Wi-Fi as your computer.
-2. Get your device IP address (in Settings → About phone → Status).
+2. Get your device IP address, in Settings → About phone → Status, or by
+   executing this command:
+
+    ```bash
+    adb shell ip route | awk '{print $9}'
+    ```
+
 3. Enable adb over TCP/IP on your device: `adb tcpip 5555`.
 4. Unplug your device.
 5. Connect to your device: `adb connect DEVICE_IP:5555` _(replace `DEVICE_IP`)_.
@@ -379,12 +465,12 @@ The rotation can also be changed dynamically with <kbd>MOD</kbd>+<kbd>←</kbd>
 _(left)_ and <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_.
 
 Note that _scrcpy_ manages 3 different rotations:
-- <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait and
-  landscape (the current running app may refuse, if it does support the
-  requested orientation).
- - `--lock-video-orientation` changes the mirroring orientation (the orientation
-   of the video sent from the device to the computer). This affects the
-   recording.
+ - <kbd>MOD</kbd>+<kbd>r</kbd> requests the device to switch between portrait
+   and landscape (the current running app may refuse, if it does support the
+   requested orientation).
+ - [`--lock-video-orientation`](#lock-video-orientation) changes the mirroring
+   orientation (the orientation of the video sent from the device to the
+   computer). This affects the recording.
  - `--rotation` (or <kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>)
    rotates only the window content. This affects only the display, not the
    recording.
@@ -448,7 +534,7 @@ Or by pressing <kbd>MOD</kbd>+<kbd>o</kbd> at any time.
 To turn it back on, press <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
 
 On Android, the `POWER` button always turns the screen on. For convenience, if
-`POWER` is sent via scrcpy (via right-click or <kbd>Ctrl</kbd>+<kbd>p</kbd>), it
+`POWER` is sent via scrcpy (via right-click or <kbd>MOD</kbd>+<kbd>p</kbd>), it
 will force to turn the screen off after a small delay (on a best effort basis).
 The physical `POWER` button will still cause the screen to be turned on.
 
@@ -460,18 +546,6 @@ scrcpy -Sw
 ```
 
 
-#### Render expired frames
-
-By default, to minimize latency, _scrcpy_ always renders the last decoded frame
-available, and drops any previous one.
-
-To force the rendering of all frames (at a cost of a possible increased
-latency), use:
-
-```bash
-scrcpy --render-expired-frames
-```
-
 #### Show touches
 
 For presentations, it may be useful to show physical touches (on the physical
@@ -545,6 +619,24 @@ into the device clipboard. As a consequence, any Android application could read
 its content. You should avoid to paste sensitive content (like passwords) that
 way.
 
+Some devices do not behave as expected when setting the device clipboard
+programmatically. An option `--legacy-paste` is provided to change the behavior
+of <kbd>Ctrl</kbd>+<kbd>v</kbd> and <kbd>MOD</kbd>+<kbd>v</kbd> so that they
+also inject the computer clipboard text as a sequence of key events (the same
+way as <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>).
+
+#### Pinch-to-zoom
+
+To simulate "pinch-to-zoom": <kbd>Ctrl</kbd>+_click-and-move_.
+
+More precisely, hold <kbd>Ctrl</kbd> while pressing the left-click button. Until
+the left-click button is released, all mouse movements scale and rotate the
+content (if supported by the app) relative to the center of the screen.
+
+Concretely, scrcpy generates additional touch events from a "virtual finger" at
+a location inverted through the center of the screen.
+
+
 #### Text injection preference
 
 There are two kinds of [events][textevents] generated when typing text:
@@ -579,6 +671,16 @@ scrcpy --no-key-repeat
 ```
 
 
+#### Right-click and middle-click
+
+By default, right-click triggers BACK (or POWER on) and middle-click triggers
+HOME. To disable these shortcuts and forward the clicks to the device instead:
+
+```bash
+scrcpy --forward-all-clicks
+```
+
+
 ### File drop
 
 #### Install APK
@@ -639,10 +741,10 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | Rotate display left                         | <kbd>MOD</kbd>+<kbd>←</kbd> _(left)_
  | Rotate display right                        | <kbd>MOD</kbd>+<kbd>→</kbd> _(right)_
  | Resize window to 1:1 (pixel-perfect)        | <kbd>MOD</kbd>+<kbd>g</kbd>
- | Resize window to remove black borders       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Double-click¹_
+ | Resize window to remove black borders       | <kbd>MOD</kbd>+<kbd>w</kbd> \| _Double-left-click¹_
  | Click on `HOME`                             | <kbd>MOD</kbd>+<kbd>h</kbd> \| _Middle-click_
  | Click on `BACK`                             | <kbd>MOD</kbd>+<kbd>b</kbd> \| _Right-click²_
- | Click on `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | Click on `APP_SWITCH`                       | <kbd>MOD</kbd>+<kbd>s</kbd> \| _4th-click³_
  | Click on `MENU` (unlock screen)             | <kbd>MOD</kbd>+<kbd>m</kbd>
  | Click on `VOLUME_UP`                        | <kbd>MOD</kbd>+<kbd>↑</kbd> _(up)_
  | Click on `VOLUME_DOWN`                      | <kbd>MOD</kbd>+<kbd>↓</kbd> _(down)_
@@ -651,17 +753,27 @@ _<kbd>[Super]</kbd> is typically the <kbd>Windows</kbd> or <kbd>Cmd</kbd> key._
  | Turn device screen off (keep mirroring)     | <kbd>MOD</kbd>+<kbd>o</kbd>
  | Turn device screen on                       | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
  | Rotate device screen                        | <kbd>MOD</kbd>+<kbd>r</kbd>
- | Expand notification panel                   | <kbd>MOD</kbd>+<kbd>n</kbd>
- | Collapse notification panel                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
- | Copy to clipboard³                          | <kbd>MOD</kbd>+<kbd>c</kbd>
- | Cut to clipboard³                           | <kbd>MOD</kbd>+<kbd>x</kbd>
- | Synchronize clipboards and paste³           | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | Expand notification panel                   | <kbd>MOD</kbd>+<kbd>n</kbd> \| _5th-click³_
+ | Expand settings panel                       |  <kbd>MOD</kbd>+<kbd>n</kbd>+<kbd>n</kbd> \| _Double-5th-click³_
+ | Collapse panels                             | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | Copy to clipboard⁴                          | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | Cut to clipboard⁴                           | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | Synchronize clipboards and paste⁴           | <kbd>MOD</kbd>+<kbd>v</kbd>
  | Inject computer clipboard text              | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
  | Enable/disable FPS counter (on stdout)      | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | Pinch-to-zoom                               | <kbd>Ctrl</kbd>+_click-and-move_
 
 _¹Double-click on black borders to remove them._  
 _²Right-click turns the screen on if it was off, presses BACK otherwise._  
-_³Only on Android >= 7._
+_³4th and 5th mouse buttons, if your mouse has them._  
+_⁴Only on Android >= 7._
+
+Shortcuts with repeated keys are executted by releasing and pressing the key a
+second time. For example, to execute "Expand settings panel":
+
+ 1. Press and keep pressing <kbd>MOD</kbd>.
+ 2. Then double-press <kbd>n</kbd>.
+ 3. Finally, release <kbd>MOD</kbd>.
 
 All <kbd>Ctrl</kbd>+_key_ shortcuts are forwarded to the device, so they are
 handled by the active application.
@@ -712,7 +824,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 Romain Vimont
+    Copyright (C) 2018-2021 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
@@ -733,3 +845,15 @@ Read the [developers page].
 
 [article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
 [article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+
+## Translations
+
+This README is available in other languages:
+
+- [Indonesian (Indonesia, `id`) - v1.16](README.id.md)
+- [한국어 (Korean, `ko`) - v1.11](README.ko.md)
+- [português brasileiro (Brazilian Portuguese, `pt-BR`) - v1.12.1](README.pt-br.md)
+- [简体中文 (Simplified Chinese, `zh-Hans`) - v1.16](README.zh-Hans.md)
+- [繁體中文 (Traditional Chinese, `zh-Hant`) - v1.15](README.zh-Hant.md)
+
+Only this README file is guaranteed to be up-to-date.

README.pt-br.md

@@ -508,7 +508,7 @@ Leia a  [developers page].
 ## Licença
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2020 Romain Vimont
+    Copyright (C) 2018-2021 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

README.zh-Hans.md

@@ -0,0 +1,726 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+只有原版的[README](README.md)会保持最新。
+
+本文根据[479d10d]进行翻译。
+
+[479d10d]: https://github.com/Genymobile/scrcpy/commit/479d10dc22b70272187e0963c6ad24d754a669a2#diff-04c6e90faac2675aa89e2176d2eec7d8
+
+
+
+# scrcpy (v1.16)
+
+本应用程序可以通过USB（或 [TCP/IP][article-tcpip] ）连接用于显示或控制安卓设备。这不需要获取 _root_ 权限。
+
+该应用程序可以在 _GNU/Linux_, _Windows_ 和 _macOS_ 环境下运行。
+
+[article-tcpip]:https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+它专注于：
+
+ - **轻量** （原生，仅显示设备屏幕）
+ - **性能** （30~60fps）
+ - **质量** （分辨率可达1920x1080或更高）
+ - **低延迟** (35-70ms)
+ - **快速启动** （数秒内即能开始显示）
+ - **无侵入性** （不需要在安卓设备上安装任何程序）
+
+
+## 使用要求
+
+安卓设备系统版本需要在Android 5.0（API 21)或以上。
+
+确保您在设备上开启了[adb调试]。
+
+[adb调试]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+在某些设备上，你还需要开启[额外的选项]以用鼠标和键盘进行控制。
+
+[额外的选项]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 获取scrcpy
+
+<a href="https://repology.org/project/scrcpy/versions"><img src="https://repology.org/badge/vertical-allrepos/scrcpy.svg" alt="Packaging status" align="right"></a>
+
+### Linux
+
+在Debian（目前仅测试版和不稳定版，即 _testing_ 和 _sid_ 版本）和Ubuntu （20.04）上：
+
+```
+apt install scrcpy
+```
+
+[Snap]包也是可用的： [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+对于Fedora用户，我们提供[COPR]包： [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+对于Arch Linux用户，我们提供[AUR]包： [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+对于Gentoo用户，我们提供[Ebuild]包：[`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+您也可以[自行编译][编译](不必担心，这并不困难)。
+
+
+
+### Windows
+
+在Windows上，简便起见，我们准备了包含所有依赖项（包括adb）的程序包。
+
+ - [`scrcpy-win64-v1.16.zip`][direct-win64]  
+   _(SHA-256: 3f30dc5db1a2f95c2b40a0f5de91ec1642d9f53799250a8c529bc882bc0918f0)_
+
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.16/scrcpy-win64-v1.16.zip
+
+您也可以在[Chocolatey]下载：
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # 如果你没有adb
+```
+
+也可以使用 [Scoop]:
+
+```bash
+scoop install scrcpy
+scoop install adb    # 如果你没有adb
+```
+
+[Scoop]: https://scoop.sh
+
+您也可以[自行编译][编译]。
+
+
+### macOS
+
+您可以使用[Homebrew]下载scrcpy。直接安装就可以了：
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+您需要 `adb`以使用scrcpy，并且它需要可以通过 `PATH`被访问。如果您没有：
+
+```bash
+brew cask install android-platform-tools
+```
+
+您也可以[自行编译][编译]。
+
+
+## 运行scrcpy
+
+用USB链接电脑和安卓设备，并执行：
+
+```bash
+scrcpy
+```
+
+支持带命令行参数执行，查看参数列表：
+
+```bash
+scrcpy --help
+```
+
+## 功能介绍
+
+### 画面设置
+
+#### 缩小分辨率
+
+有时候，将设备屏幕镜像分辨率降低可以有效地提升性能。
+
+我们可以将高度和宽度都限制在一定大小内（如 1024）：
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # short version
+```
+
+较短的一边会被按比例缩小以保持设备的显示比例。
+这样，1920x1080 的设备会以 1024x576 的分辨率显示。
+
+
+#### 修改画面比特率
+
+默认的比特率是8Mbps。如果要改变画面的比特率 (比如说改成2Mbps)：
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # short version
+```
+
+#### 限制画面帧率
+
+画面的帧率可以通过下面的命令被限制：
+
+```bash
+scrcpy --max-fps 15
+```
+
+这个功能仅在Android 10和以后的版本被Android官方支持，但也有可能在更早的版本可用。
+
+#### 画面裁剪
+
+设备画面可在裁切后进行镜像，以显示部分屏幕。
+
+这项功能可以用于，例如，只显示Oculus Go的一只眼睛。
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
+```
+
+如果`--max-size`在同时被指定，分辨率的改变将在画面裁切后进行。
+
+
+#### 锁定屏幕朝向
+
+
+可以使用如下命令锁定屏幕朝向：
+
+```bash
+scrcpy --lock-video-orientation 0   # 自然朝向
+scrcpy --lock-video-orientation 1   # 90° 逆时针旋转
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° 顺时针旋转
+```
+
+该设定影响录制。
+
+
+### 屏幕录制
+
+可以在屏幕镜像的同时录制视频：
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+在不开启屏幕镜像的同时录制：
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# 按Ctrl+C以停止录制
+```
+
+在显示中“被跳过的帧”会被录制，虽然它们由于性能原因没有实时显示。
+在传输中每一帧都有 _时间戳_ ，所以 [包时延变化] 并不影响录制的文件。
+
+[包时延变化]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### 连接方式
+
+#### 无线
+
+_Scrcpy_ 使用`adb`来与安卓设备连接。同时，`adb`能够通过TCP/IP[连接]到安卓设备:
+
+1. 将您的安卓设备和电脑连接至同一Wi-Fi。
+2. 获取安卓设备的IP地址（在设置-关于手机-状态信息）。
+3. 打开安卓设备的网络adb功能`adb tcpip 5555`。
+4. 将您的设备与电脑断开连接。
+5. 连接到您的设备：`adb connect DEVICE_IP:5555` _(用设备IP替换 `DEVICE_IP`)_.
+6. 运行`scrcpy`。
+
+降低比特率和分辨率可能有助于性能：
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # short version
+```
+
+[连接]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### 多设备
+
+如果多个设备在执行`adb devices`后被列出，您必须指定设备的 _序列号_ ：
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # short version
+```
+
+如果设备是通过TCP/IP方式连接到电脑的：
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # short version
+```
+
+您可以同时启动多个 _scrcpy_ 实例以同时显示多个设备的画面。
+
+#### 在设备连接时自动启动
+
+您可以使用 [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSH 连接
+
+本地的 adb 可以远程连接到另一个 adb 服务器（假设两者的adb版本相同），来远程连接到设备：
+
+```bash
+adb kill-server    # 关闭本地5037端口上的adb服务器
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 保持该窗口开启
+```
+
+从另一个终端：
+
+```bash
+scrcpy
+```
+
+为了避免启动远程端口转发，你可以强制启动一个转发连接（注意`-L`和`-R`的区别：
+
+```bash
+adb kill-server    # kill the local adb server on 5037
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# 保持该窗口开启
+```
+
+从另一个终端:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+和无线网络连接类似，下列设置可能对改善性能有帮助：
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### 窗口设置
+
+#### 标题
+
+窗口的标题默认为设备型号。您可以通过如下命令修改它：
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### 位置和大小
+
+您可以指定初始的窗口位置和大小：
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### 无边框
+
+关闭边框：
+
+```bash
+scrcpy --window-borderless
+```
+
+#### 保持窗口在最前
+
+您可以通过如下命令保持窗口在最前面：
+
+```bash
+scrcpy --always-on-top
+```
+
+#### 全屏
+
+您可以通过如下命令直接全屏启动scrcpy：
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # short version
+```
+
+全屏状态可以通过<kbd>MOD</kbd>+<kbd>f</kbd>实时改变。
+
+#### 旋转
+
+通过如下命令，窗口可以旋转：
+
+```bash
+scrcpy --rotation 1
+```
+
+可选的值有：
+ - `0`: 无旋转
+ - `1`: 逆时针旋转90°
+ - `2`: 旋转180°
+ - `3`: 顺时针旋转90°
+
+这同样可以使用<kbd>MOD</kbd>+<kbd>←</kbd>
+_(左)_ 和 <kbd>MOD</kbd>+<kbd>→</kbd> _(右)_ 的快捷键实时更改。
+
+需要注意的是， _scrcpy_ 控制三个不同的朝向：
+ - <kbd>MOD</kbd>+<kbd>r</kbd> 请求设备在竖屏和横屏之间切换（如果前台应用程序不支持所请求的朝向，可能会拒绝该请求）。
+
+ - `--lock-video-orientation` 改变镜像的朝向（设备镜像到电脑的画面朝向）。这会影响录制。
+
+ - `--rotation` （或<kbd>MOD</kbd>+<kbd>←</kbd>/<kbd>MOD</kbd>+<kbd>→</kbd>）
+   只旋转窗口的画面。这只影响显示，不影响录制。
+
+
+### 其他镜像设置
+
+#### 只读
+
+关闭电脑对设备的控制（如键盘输入、鼠标移动和文件传输）：
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### 显示屏
+
+如果有多个显示屏可用，您可以选择特定显示屏进行镜像：
+
+```bash
+scrcpy --display 1
+```
+
+您可以通过如下命令找到显示屏的id：
+
+```
+adb shell dumpsys display   # 在回显中搜索“mDisplayId=”
+```
+
+第二显示屏可能只能在设备运行Android 10或以上的情况下被控制（它可能会在电脑上显示，但无法通过电脑操作）。
+
+
+#### 保持常亮
+
+防止设备在已连接的状态下休眠：
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+程序关闭后，设备设置会恢复原样。
+
+
+#### 关闭设备屏幕
+
+在启动屏幕镜像时，可以通过如下命令关闭设备的屏幕：
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+或者在需要的时候按<kbd>MOD</kbd>+<kbd>o</kbd>。
+
+要重新打开屏幕的话，需要按<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>.
+
+在Android上,`电源`按钮始终能把屏幕打开。
+
+为了方便，如果按下`电源`按钮的事件是通过 _scrcpy_ 发出的（通过点按鼠标右键或<kbd>MOD</kbd>+<kbd>p</kbd>），它会在短暂的延迟后将屏幕关闭。
+
+物理的`电源`按钮仍然能打开设备屏幕。
+
+同时，这项功能还能被用于防止设备休眠：
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### 渲染超时帧
+
+为了降低延迟， _scrcpy_ 默认渲染解码成功的最近一帧，并跳过前面任意帧。
+
+强制渲染所有帧（可能导致延迟变高）：
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### 显示触摸
+
+在展示时，有些时候可能会用到显示触摸点这项功能（在设备上显示）。
+
+Android在 _开发者设置_ 中提供了这项功能。
+
+_Scrcpy_ 提供一个选项可以在启动时开启这项功能并在退出时恢复初始设置：
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+请注意这项功能只能显示 _物理_ 触摸（要用手在屏幕上触摸）。
+
+
+#### 关闭屏保
+
+_Scrcpy_ 不会默认关闭屏幕保护。
+
+关闭屏幕保护：
+
+```bash
+scrcpy --disable-screensaver
+```
+
+
+### 输入控制
+
+#### 旋转设备屏幕
+
+使用<kbd>MOD</kbd>+<kbd>r</kbd>以在竖屏和横屏模式之间切换。
+
+需要注意的是，只有在前台应用程序支持所要求的模式时，才会进行切换。
+
+#### 复制黏贴
+
+每次Android的剪贴板变化的时候，它都会被自动同步到电脑的剪贴板上。
+
+所有的 <kbd>Ctrl</kbd> 快捷键都会被转发至设备。其中：
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> 复制
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> 剪切
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> 黏贴 （在电脑到设备的剪贴板同步完成之后）
+
+这通常如您所期望的那样运作。
+
+但实际的行为取决于设备上的前台程序。
+例如 _Termux_ 在<kbd>Ctrl</kbd>+<kbd>c</kbd>被按下时发送 SIGINT，
+又如 _K-9 Mail_ 会新建一封新邮件。
+
+在这种情况下剪切复制黏贴（仅在Android >= 7时可用）：
+ - <kbd>MOD</kbd>+<kbd>c</kbd> 注入 `COPY`（复制）
+ - <kbd>MOD</kbd>+<kbd>x</kbd> 注入 `CUT`（剪切）
+ - <kbd>MOD</kbd>+<kbd>v</kbd> 注入 `PASTE`（黏贴）（在电脑到设备的剪贴板同步完成之后）
+
+另外，<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>可以将电脑的剪贴板内容转换为一串按键事件输入到设备。
+在应用程序不接受黏贴时（比如 _Termux_ ），这项功能可以排上一定的用场。
+需要注意的是，这项功能可能会导致非ASCII编码的内容出现错误。
+
+**警告：** 将电脑剪贴板的内容黏贴至设备（无论是通过<kbd>Ctrl</kbd>+<kbd>v</kbd>还是<kbd>MOD</kbd>+<kbd>v</kbd>）
+都需要将内容保存至设备的剪贴板。如此，任何一个应用程序都可以读取它。
+您应当避免将敏感内容通过这种方式传输（如密码）。
+
+
+#### 捏拉缩放
+
+模拟 “捏拉缩放”：<kbd>Ctrl</kbd>+_按住并移动鼠标_。
+
+更准确的说，您需要在按住<kbd>Ctrl</kbd>的同时按住并移动鼠标。
+在鼠标左键松开之后，光标的任何操作都会相对于屏幕的中央进行。
+
+具体来说， _scrcpy_ 使用“虚拟手指”以在相对于屏幕中央相反的位置产生触摸事件。
+
+
+#### 文字注入偏好
+
+打字的时候，系统会产生两种[事件][textevents]：
+ - _按键事件_ ，代表一个按键被按下/松开。
+ - _文本事件_ ，代表一个文本被输入。
+
+程序默认使用按键事件来输入字母。只有这样，键盘才会在游戏中正常运作（尤其WASD键）。
+
+但这也有可能[造成问题][prefertext]。如果您遇到了这样的问题，您可以通过下列操作避免它：
+
+```bash
+scrcpy --prefer-text
+```
+
+（这会导致键盘在游戏中工作不正常）
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### 按键重复
+
+当你一直按着一个按键不放时，程序默认产生多个按键事件。
+在某些游戏中这可能会导致性能问题。
+
+避免转发重复按键事件：
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+### 文件传输
+
+#### 安装APK
+
+如果您要要安装APK，请拖放APK文件（文件名以`.apk`结尾）到 _scrcpy_ 窗口。
+
+该操作在屏幕上不会出现任何变化，而会在控制台输出一条日志。
+
+
+#### 将文件推送至设备
+
+如果您要推送文件到设备的 `/sdcard/`，请拖放文件至（不能是APK文件）_scrcpy_ 窗口。
+
+该操作没有可见的响应，只会在控制台输出日志。
+
+在启动时可以修改目标目录：
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### 音频转发
+
+_scrcpy_ 不支持音频。请使用 [sndcpy].
+
+另外请阅读 [issue #14]。
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## 热键
+
+在下列表格中, <kbd>MOD</kbd> 是热键的修饰键。
+默认是（左）<kbd>Alt</kbd>或者（左）<kbd>Super</kbd>。
+
+您可以使用 `--shortcut-mod`后缀来修改它。可选的按键有`lctrl`、`rctrl`、
+`lalt`、`ralt`、`lsuper`和`rsuper`。如下例：
+
+```bash
+# 使用右侧的Ctrl键
+scrcpy --shortcut-mod=rctrl
+
+# 使用左侧的Ctrl键、Alt键或Super键
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_一般来说，<kbd>[Super]</kbd>就是<kbd>Windows</kbd>或者<kbd>Cmd</kbd>。_
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | 操作                                        |   快捷键
+ | ------------------------------------------- |:-----------------------------
+ | 全屏                                        | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | 向左旋转屏幕                                 | <kbd>MOD</kbd>+<kbd>←</kbd> _(左)_
+ | 向右旋转屏幕                                 | <kbd>MOD</kbd>+<kbd>→</kbd> _(右)_
+ | 将窗口大小重置为1:1 (像素优先)                | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | 将窗口大小重置为消除黑边                      | <kbd>MOD</kbd>+<kbd>w</kbd> \| _双击¹_
+ | 点按 `主屏幕`                                | <kbd>MOD</kbd>+<kbd>h</kbd> \| _点击鼠标中键_
+ | 点按 `返回`                                  | <kbd>MOD</kbd>+<kbd>b</kbd> \| _点击鼠标右键²_
+ | 点按 `切换应用`                              | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | 点按 `菜单` （解锁屏幕）                      | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | 点按 `音量+`                                | <kbd>MOD</kbd>+<kbd>↑</kbd> _(up)_
+ | 点按 `音量-`                                | <kbd>MOD</kbd>+<kbd>↓</kbd> _(down)_
+ | 点按 `电源`                                 | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | 打开屏幕                                    | _点击鼠标右键²_
+ | 关闭设备屏幕（但继续在电脑上显示）             | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | 打开设备屏幕                                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | 旋转设备屏幕                                 | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | 展开通知面板                                 | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | 展开快捷操作                                 | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | 复制到剪贴板³                                | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | 剪切到剪贴板³                                | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | 同步剪贴板并黏贴³                            | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | 导入电脑剪贴板文本                           | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | 打开/关闭FPS显示（在 stdout)                 | <kbd>MOD</kbd>+<kbd>i</kbd>
+ | 捏拉缩放                                    | <kbd>Ctrl</kbd>+_点按并移动鼠标_
+
+_¹双击黑色边界以关闭黑色边界_  
+_²点击鼠标右键将在屏幕熄灭时点亮屏幕，其余情况则视为按下 返回键 。_  
+_³需要安卓版本 Android >= 7。_
+
+所有的 <kbd>Ctrl</kbd>+_按键_ 的热键都是被转发到设备进行处理的，所以实际上会由当前应用程序对其做出响应。
+
+
+## 自定义路径
+
+为了使用您想使用的 _adb_ ，您可以在环境变量
+`ADB`中设置它的路径：
+
+    ADB=/path/to/adb scrcpy
+
+如果需要覆盖`scrcpy-server`的路径，您可以在
+`SCRCPY_SERVER_PATH`中设置它。
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## 为什么叫 _scrcpy_ ？
+
+一个同事让我找出一个和[gnirehtet]一样难以发音的名字。
+
+[`strcpy`] 可以复制**str**ing； `scrcpy` 可以复制**scr**een。
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## 如何编译？
+
+请查看[编译]。
+
+[编译]: BUILD.md
+
+
+## 常见问题
+
+请查看[FAQ](FAQ.md).
+
+
+## 开发者
+
+请查看[开发者页面]。
+
+[开发者页面]: DEVELOP.md
+
+
+## 许可协议
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 相关文章
+
+- [Introducing scrcpy][article-intro]
+- [Scrcpy now works wirelessly][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

README.zh-Hant.md

@@ -0,0 +1,705 @@
+_Only the original [README](README.md) is guaranteed to be up-to-date._
+
+_只有原版的 [README](README.md)是保證最新的。_
+
+
+本文件翻譯時點: [521f2fe](https://github.com/Genymobile/scrcpy/commit/521f2fe994019065e938aa1a54b56b4f10a4ac4a#diff-04c6e90faac2675aa89e2176d2eec7d8)
+
+
+# scrcpy (v1.15)
+
+Scrcpy 可以透過 USB、或是 [TCP/IP][article-tcpip] 來顯示或控制 Android 裝置。且 scrcpy 不需要 _root_ 權限。
+
+Scrcpy 目前支援 _GNU/Linux_、_Windows_ 和 _macOS_。
+
+![screenshot](assets/screenshot-debian-600.jpg)
+
+特色:
+
+ - **輕量** (只顯示裝置螢幕)
+ - **效能** (30~60fps)
+ - **品質** (1920×1080 或更高)
+ - **低延遲** ([35~70ms][lowlatency])
+ - **快速啟動** (~1 秒就可以顯示第一個畫面)
+ - **非侵入性** (不安裝、留下任何東西在裝置上)
+
+[lowlatency]: https://github.com/Genymobile/scrcpy/pull/646
+
+
+## 需求
+
+Android 裝置必須是 API 21+ (Android 5.0+)。
+
+請確認裝置上的 [adb 偵錯 (通常位於開發者模式內)][enable-adb] 已啟用。
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+
+
+在部分的裝置上，你也必須啟用[特定的額外選項][control]才能使用鍵盤和滑鼠控制。
+
+[control]: https://github.com/Genymobile/scrcpy/issues/70#issuecomment-373286323
+
+
+## 下載/獲取軟體
+
+
+### Linux
+
+Debian (目前支援 _testing_ 和 _sid_) 和 Ubuntu (20.04):
+
+```
+apt install scrcpy
+```
+
+[Snap] 上也可以下載: [`scrcpy`][snap-link].
+
+[snap-link]: https://snapstats.org/snaps/scrcpy
+
+[snap]: https://en.wikipedia.org/wiki/Snappy_(package_manager)
+
+在 Fedora 上也可以使用 [COPR] 下載: [`scrcpy`][copr-link].
+
+[COPR]: https://fedoraproject.org/wiki/Category:Copr
+[copr-link]: https://copr.fedorainfracloud.org/coprs/zeno/scrcpy/
+
+在 Arch Linux 上也可以使用 [AUR] 下載: [`scrcpy`][aur-link].
+
+[AUR]: https://wiki.archlinux.org/index.php/Arch_User_Repository
+[aur-link]: https://aur.archlinux.org/packages/scrcpy/
+
+在 Gentoo 上也可以使用 [Ebuild] 下載: [`scrcpy/`][ebuild-link].
+
+[Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
+[ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。別擔心，並沒有想像中的難。
+
+
+
+### Windows
+
+為了保持簡單，Windows 用戶可以下載一個包含所有必需軟體 (包含 `adb`) 的壓縮包:
+
+- [`scrcpy-win64-v1.15.zip`][direct-win64]  
+   _(SHA-256: dd514bb591e63ef4cd52a53c30f1153a28f59722d64690eb07bd017849edcba2)_
+
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.15/scrcpy-win64-v1.15.zip
+
+[Chocolatey] 上也可以下載:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+choco install adb    # 如果你還沒有安裝的話
+```
+
+[Scoop] 上也可以下載:
+
+```bash
+scoop install scrcpy
+scoop install adb    # 如果你還沒有安裝的話
+```
+
+[Scoop]: https://scoop.sh
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。
+
+
+### macOS
+
+_Scrcpy_ 可以在 [Homebrew] 上直接安裝:
+
+[Homebrew]: https://brew.sh/
+
+```bash
+brew install scrcpy
+```
+
+由於執行期間需要可以藉由 `PATH` 存取 `adb` 。如果還沒有安裝 `adb` 可以使用下列方式安裝:
+
+```bash
+brew cask install android-platform-tools
+```
+
+你也可以自己[編譯 _Scrcpy_][BUILD]。
+
+
+## 執行
+
+將電腦和你的 Android 裝置連線，然後執行:
+
+```bash
+scrcpy
+```
+
+_Scrcpy_ 可以接受命令列參數。輸入下列指令就可以瀏覽可以使用的命令列參數:
+
+```bash
+scrcpy --help
+```
+
+
+## 功能
+
+> 以下說明中，有關快捷鍵的說明可能會出現 <kbd>MOD</kbd> 按鈕。相關說明請參見[快捷鍵]內的說明。
+
+[快捷鍵]: #快捷鍵
+
+### 畫面擷取
+
+#### 縮小尺寸
+
+使用比較低的解析度來投放 Android 裝置在某些情況可以提升效能。
+
+限制寬和高的最大值(例如: 1024):
+
+```bash
+scrcpy --max-size 1024
+scrcpy -m 1024  # 縮短版本
+```
+
+比較小的參數會根據螢幕比例重新計算。
+根據上面的範例，1920x1080 會被縮小成 1024x576。
+
+
+#### 更改 bit-rate
+
+預設的 bit-rate 是 8 Mbps。如果要更改 bit-rate (例如: 2 Mbps):
+
+```bash
+scrcpy --bit-rate 2M
+scrcpy -b 2M  # 縮短版本
+```
+
+#### 限制 FPS
+
+限制畫面最高的 FPS:
+
+```bash
+scrcpy --max-fps 15
+```
+
+僅在 Android 10 後正式支援，不過也有可能可以在 Android 10 以前的版本使用。
+
+#### 裁切
+
+裝置的螢幕可以裁切。如此一來，鏡像出來的螢幕就只會是原本的一部份。
+
+假如只要鏡像 Oculus Go 的其中一隻眼睛:
+
+```bash
+scrcpy --crop 1224:1440:0:0   # 位於 (0,0)，大小1224x1440
+```
+
+如果 `--max-size` 也有指定的話，裁切後才會縮放。
+
+
+#### 鎖定影像方向
+
+
+如果要鎖定鏡像影像方向:
+
+```bash
+scrcpy --lock-video-orientation 0   # 原本的方向
+scrcpy --lock-video-orientation 1   # 逆轉 90°
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 順轉 90°
+```
+
+這會影響錄影結果的影像方向。
+
+
+### 錄影
+
+鏡像投放螢幕的同時也可以錄影:
+
+```bash
+scrcpy --record file.mp4
+scrcpy -r file.mkv
+```
+
+如果只要錄影，不要投放螢幕鏡像的話:
+
+```bash
+scrcpy --no-display --record file.mp4
+scrcpy -Nr file.mkv
+# 用 Ctrl+C 停止錄影
+```
+
+就算有些幀為了效能而被跳過，它們還是一樣會被錄製。
+
+裝置上的每一幀都有時間戳記，所以 [封包延遲 (Packet Delay Variation, PDV)][packet delay variation] 並不會影響錄影的檔案。
+
+[packet delay variation]: https://en.wikipedia.org/wiki/Packet_delay_variation
+
+
+### 連線
+
+#### 無線
+
+_Scrcpy_ 利用 `adb` 和裝置通訊，而 `adb` 可以[透過 TCP/IP 連結][connect]:
+
+1. 讓電腦和裝置連到同一個 Wi-Fi。
+2. 獲取手機的 IP 位址(設定 → 關於手機 → 狀態).
+3. 啟用裝置上的 `adb over TCP/IP`: `adb tcpip 5555`.
+4. 拔掉裝置上的線。
+5. 透過 TCP/IP 連接裝置: `adb connect DEVICE_IP:5555` _(把 `DEVICE_IP` 換成裝置的IP位址)_.
+6. 和平常一樣執行 `scrcpy`。
+
+如果效能太差，可以降低 bit-rate 和解析度:
+
+```bash
+scrcpy --bit-rate 2M --max-size 800
+scrcpy -b2M -m800  # 縮短版本
+```
+
+[connect]: https://developer.android.com/studio/command-line/adb.html#wireless
+
+
+#### 多裝置
+
+如果 `adb devices` 內有多個裝置，則必須附上 _serial_:
+
+```bash
+scrcpy --serial 0123456789abcdef
+scrcpy -s 0123456789abcdef  # 縮短版本
+```
+
+如果裝置是透過 TCP/IP 連線:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # 縮短版本
+```
+
+你可以啟用復數個對應不同裝置的 _scrcpy_。
+
+#### 裝置連結後自動啟動
+
+你可以使用 [AutoAdb]:
+
+```bash
+autoadb scrcpy -s '{}'
+```
+
+[AutoAdb]: https://github.com/rom1v/autoadb
+
+#### SSH tunnel
+
+本地的 `adb` 可以連接到遠端的 `adb` 伺服器(假設兩者使用相同版本的 _adb_ 通訊協定)，以連接到遠端裝置:
+
+```bash
+adb kill-server    # 停止在 Port 5037 的本地 adb 伺服
+ssh -CN -L5037:localhost:5037 -R27183:localhost:27183 your_remote_computer
+# 保持開啟
+```
+
+從另外一個終端機:
+
+```bash
+scrcpy
+```
+
+如果要避免啟用 remote port forwarding，你可以強制它使用 forward connection (注意 `-L` 和 `-R` 的差別):
+
+```bash
+adb kill-server    # 停止在 Port 5037 的本地 adb 伺服
+ssh -CN -L5037:localhost:5037 -L27183:localhost:27183 your_remote_computer
+# 保持開啟
+```
+
+從另外一個終端機:
+
+```bash
+scrcpy --force-adb-forward
+```
+
+
+和無線連接一樣，有時候降低品質會比較好:
+
+```
+scrcpy -b2M -m800 --max-fps 15
+```
+
+### 視窗調整
+
+#### 標題
+
+預設標題是裝置的型號，不過可以透過以下方式修改:
+
+```bash
+scrcpy --window-title 'My device'
+```
+
+#### 位置 & 大小
+
+初始的視窗位置和大小也可以指定:
+
+```bash
+scrcpy --window-x 100 --window-y 100 --window-width 800 --window-height 600
+```
+
+#### 無邊框
+
+如果要停用視窗裝飾:
+
+```bash
+scrcpy --window-borderless
+```
+
+#### 保持最上層
+
+如果要保持 `scrcpy` 的視窗在最上層:
+
+```bash
+scrcpy --always-on-top
+```
+
+#### 全螢幕
+
+這個軟體可以直接在全螢幕模式下起動:
+
+```bash
+scrcpy --fullscreen
+scrcpy -f  # 縮短版本
+```
+
+全螢幕可以使用 <kbd>MOD</kbd>+<kbd>f</kbd> 開關。
+
+#### 旋轉
+
+視窗可以旋轉:
+
+```bash
+scrcpy --rotation 1
+```
+
+可用的數值:
+ - `0`: 不旋轉
+ - `1`: 90 度**逆**轉
+ - `2`: 180 度
+ - `3`: 90 度**順**轉
+
+旋轉方向也可以使用 <kbd>MOD</kbd>+<kbd>←</kbd> _(左方向鍵)_ 和 <kbd>MOD</kbd>+<kbd>→</kbd> _(右方向鍵)_ 調整。
+
+_scrcpy_ 有 3 種不同的旋轉:
+ - <kbd>MOD</kbd>+<kbd>r</kbd> 要求裝置在垂直、水平之間旋轉 (目前運行中的 App 有可能會因為不支援而拒絕)。
+ - `--lock-video-orientation` 修改鏡像的方向 (裝置傳給電腦的影像)。這會影響錄影結果的影像方向。
+ - `--rotation` (或是 <kbd>MOD</kbd>+<kbd>←</kbd> / <kbd>MOD</kbd>+<kbd>→</kbd>) 只旋轉視窗的內容。這只會影響鏡像結果，不會影響錄影結果。
+
+
+### 其他鏡像選項
+
+#### 唯讀
+
+停用所有控制，包含鍵盤輸入、滑鼠事件、拖放檔案:
+
+```bash
+scrcpy --no-control
+scrcpy -n
+```
+
+#### 顯示螢幕
+
+如果裝置有複數個螢幕，可以指定要鏡像哪個螢幕:
+
+```bash
+scrcpy --display 1
+```
+
+可以透過下列指令獲取螢幕 ID:
+
+```
+adb shell dumpsys display   # 找輸出結果中的 "mDisplayId="
+```
+
+第二螢幕只有在 Android 10+ 時可以控制。如果不是 Android 10+，螢幕就會在唯讀狀態下投放。
+
+
+#### 保持清醒
+
+如果要避免裝置在連接狀態下進入睡眠:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+_scrcpy_ 關閉後就會回復成原本的設定。
+
+
+#### 關閉螢幕
+
+鏡像開始時，可以要求裝置關閉螢幕:
+
+```bash
+scrcpy --turn-screen-off
+scrcpy -S
+```
+
+或是在任何時候輸入 <kbd>MOD</kbd>+<kbd>o</kbd>。
+
+如果要開啟螢幕，輸入 <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>。
+
+在 Android 上，`POWER` 按鈕總是開啟螢幕。
+
+為了方便，如果 `POWER` 是透過 scrcpy 轉送 (右鍵 或 <kbd>MOD</kbd>+<kbd>p</kbd>)的話，螢幕將會在短暫的延遲後關閉。
+
+實際在手機上的 `POWER` 還是會開啟螢幕。
+
+防止裝置進入睡眠狀態:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
+#### 顯示過期的幀
+
+為了降低延遲， _scrcpy_ 預設只會顯示最後解碼的幀，並且拋棄所有在這之前的幀。
+
+如果要強制顯示所有的幀 (有可能會拉高延遲)，輸入:
+
+```bash
+scrcpy --render-expired-frames
+```
+
+#### 顯示觸控點
+
+對於要報告的人來說，顯示裝置上的實際觸控點有時候是有幫助的。
+
+Android 在_開發者選項_中有提供這個功能。
+
+_Scrcpy_ 可以在啟動時啟用這個功能，並且在停止後恢復成原本的設定:
+
+```bash
+scrcpy --show-touches
+scrcpy -t
+```
+
+這個選項只會顯示**實際觸碰在裝置上的觸碰點**。
+
+
+### 輸入控制
+
+
+#### 旋轉裝置螢幕
+
+輸入 <kbd>MOD</kbd>+<kbd>r</kbd> 以在垂直、水平之間切換。
+
+如果使用中的程式不支援，則不會切換。
+
+
+#### 複製/貼上
+
+如果 Android 剪貼簿上的內容有任何更動，電腦的剪貼簿也會一起更動。
+
+任何與 <kbd>Ctrl</kbd> 相關的快捷鍵事件都會轉送到裝置上。特別來說:
+ - <kbd>Ctrl</kbd>+<kbd>c</kbd> 通常是複製
+ - <kbd>Ctrl</kbd>+<kbd>x</kbd> 通常是剪下
+ - <kbd>Ctrl</kbd>+<kbd>v</kbd> 通常是貼上 (在電腦的剪貼簿與裝置上的剪貼簿同步之後)
+
+這些跟你通常預期的行為一樣。
+
+但是，實際上的行為是根據目前運行中的應用程式而定。
+
+舉例來說， _Termux_ 在收到 <kbd>Ctrl</kbd>+<kbd>c</kbd> 後，會傳送 SIGINT；而 _K-9 Mail_ 則是建立新訊息。
+
+如果在這情況下，要剪下、複製或貼上 (只有在Android 7+時才支援):
+ - <kbd>MOD</kbd>+<kbd>c</kbd> 注入 `複製`
+ - <kbd>MOD</kbd>+<kbd>x</kbd> 注入 `剪下`
+ - <kbd>MOD</kbd>+<kbd>v</kbd> 注入 `貼上` (在電腦的剪貼簿與裝置上的剪貼簿同步之後)
+
+另外，<kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd> 則是以一連串的按鍵事件貼上電腦剪貼簿中的內容。當元件不允許文字貼上 (例如 _Termux_) 時，這就很有用。不過，這在非 ASCII 內容上就無法使用。
+
+**警告:** 貼上電腦的剪貼簿內容 (無論是從 <kbd>Ctrl</kbd>+<kbd>v</kbd> 或 <kbd>MOD</kbd>+<kbd>v</kbd>) 時，會複製剪貼簿中的內容至裝置的剪貼簿上。這會讓所有 Android 程式讀取剪貼簿的內容。請避免貼上任何敏感內容 (像是密碼)。
+
+
+#### 文字輸入偏好
+
+輸入文字時，有兩種[事件][textevents]會被觸發:
+ - _鍵盤事件 (key events)_，代表有一個按鍵被按下或放開
+ - _文字事件 (text events)_，代表有一個文字被輸入
+
+預設上，文字是被以鍵盤事件 (key events) 輸入的，所以鍵盤和遊戲內所預期的一樣 (通常是指 WASD)。
+
+但是這可能造成[一些問題][prefertext]。如果在這輸入這方面遇到了問題，你可以試試:
+
+```bash
+scrcpy --prefer-text
+```
+
+(不過遊戲內鍵盤就會不可用)
+
+[textevents]: https://blog.rom1v.com/2018/03/introducing-scrcpy/#handle-text-input
+[prefertext]: https://github.com/Genymobile/scrcpy/issues/650#issuecomment-512945343
+
+
+#### 重複輸入
+
+通常來說，長時間按住一個按鍵會重複觸發按鍵事件。這會在一些遊戲中造成效能問題，而且這個重複的按鍵事件是沒有意義的。
+
+如果不要轉送這些重複的按鍵事件:
+
+```bash
+scrcpy --no-key-repeat
+```
+
+
+### 檔案
+
+#### 安裝 APK
+
+如果要安裝 APK ，拖放一個 APK 檔案 (以 `.apk` 為副檔名) 到 _scrcpy_ 的視窗上。
+
+視窗上不會有任何反饋；結果會顯示在命令列中。
+
+
+#### 推送檔案至裝置
+
+如果要推送檔案到裝置上的 `/sdcard/` ，拖放一個非 APK 檔案 (**不**以 `.apk` 為副檔名) 到 _scrcpy_ 的視窗上。
+
+視窗上不會有任何反饋；結果會顯示在命令列中。
+
+推送檔案的目標路徑可以在啟動時指定:
+
+```bash
+scrcpy --push-target /sdcard/foo/bar/
+```
+
+
+### 音訊轉送
+
+_scrcpy_ **不**轉送音訊。請使用 [sndcpy]。另外，參見 [issue #14]。
+
+[sndcpy]: https://github.com/rom1v/sndcpy
+[issue #14]: https://github.com/Genymobile/scrcpy/issues/14
+
+
+## 快捷鍵
+
+在以下的清單中，<kbd>MOD</kbd> 是快捷鍵的特殊按鍵。通常來說，這個按鍵是 (左) <kbd>Alt</kbd> 或是 (左) <kbd>Super</kbd>。
+
+這個是可以使用 `--shortcut-mod` 更改的。可以用的選項有:
+- `lctrl`: 左邊的 <kbd>Ctrl</kbd>
+- `rctrl`: 右邊的 <kbd>Ctrl</kbd>
+- `lalt`: 左邊的 <kbd>Alt</kbd>
+- `ralt`: 右邊的 <kbd>Alt</kbd>
+- `lsuper`: 左邊的 <kbd>Super</kbd>
+- `rsuper`: 右邊的 <kbd>Super</kbd>
+
+```bash
+# 以 右邊的 Ctrl 為快捷鍵特殊按鍵
+scrcpy --shortcut-mod=rctrl
+
+# 以 左邊的 Ctrl 和左邊的 Alt 或是 左邊的 Super 為快捷鍵特殊按鍵
+scrcpy --shortcut-mod=lctrl+lalt,lsuper
+```
+
+_<kbd>[Super]</kbd> 通常是 <kbd>Windows</kbd> 或 <kbd>Cmd</kbd> 鍵。_
+
+[Super]: https://en.wikipedia.org/wiki/Super_key_(keyboard_button)
+
+ | Action                                            |   Shortcut
+ | ------------------------------------------------- |:-----------------------------
+ | 切換至全螢幕                                       | <kbd>MOD</kbd>+<kbd>f</kbd>
+ | 左旋顯示螢幕                                       | <kbd>MOD</kbd>+<kbd>←</kbd> _(左)_
+ | 右旋顯示螢幕                                       | <kbd>MOD</kbd>+<kbd>→</kbd> _(右)_
+ | 縮放視窗成 1:1 (pixel-perfect)                     | <kbd>MOD</kbd>+<kbd>g</kbd>
+ | 縮放視窗到沒有黑邊框為止                            | <kbd>MOD</kbd>+<kbd>w</kbd> \| _雙擊¹_
+ | 按下 `首頁` 鍵                                     | <kbd>MOD</kbd>+<kbd>h</kbd> \| _中鍵_
+ | 按下 `返回` 鍵                                     | <kbd>MOD</kbd>+<kbd>b</kbd> \| _右鍵²_
+ | 按下 `切換 APP` 鍵                                 | <kbd>MOD</kbd>+<kbd>s</kbd>
+ | 按下 `選單` 鍵 (或解鎖螢幕)                         | <kbd>MOD</kbd>+<kbd>m</kbd>
+ | 按下 `音量+` 鍵                                    | <kbd>MOD</kbd>+<kbd>↑</kbd> _(上)_
+ | 按下 `音量-` 鍵                                    | <kbd>MOD</kbd>+<kbd>↓</kbd> _(下)_
+ | 按下 `電源` 鍵                                     | <kbd>MOD</kbd>+<kbd>p</kbd>
+ | 開啟                                               | _右鍵²_
+ | 關閉裝置螢幕(持續鏡像)                              | <kbd>MOD</kbd>+<kbd>o</kbd>
+ | 開啟裝置螢幕                                        | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>o</kbd>
+ | 旋轉裝置螢幕                                        | <kbd>MOD</kbd>+<kbd>r</kbd>
+ | 開啟通知列                                          | <kbd>MOD</kbd>+<kbd>n</kbd>
+ | 關閉通知列                                          | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>n</kbd>
+ | 複製至剪貼簿³                                       | <kbd>MOD</kbd>+<kbd>c</kbd>
+ | 剪下至剪貼簿³                                       | <kbd>MOD</kbd>+<kbd>x</kbd>
+ | 同步剪貼簿並貼上³                                   | <kbd>MOD</kbd>+<kbd>v</kbd>
+ | 複製電腦剪貼簿中的文字至裝置並貼上                    | <kbd>MOD</kbd>+<kbd>Shift</kbd>+<kbd>v</kbd>
+ | 啟用/停用 FPS 計數器(顯示於 stdout - 通常是命令列)    | <kbd>MOD</kbd>+<kbd>i</kbd>
+
+_¹在黑邊框上雙擊以移除它們。_  
+_²右鍵會返回。如果螢幕是關閉狀態，則會打開螢幕。_  
+_³只支援 Android 7+。_
+
+所有 <kbd>Ctrl</kbd>+_按鍵_ 快捷鍵都會傳送到裝置上，所以它們是由目前運作的應用程式處理的。
+
+
+## 自訂路徑
+
+如果要使用特定的 _adb_ ，將它設定到環境變數中的 `ADB`:
+
+    ADB=/path/to/adb scrcpy
+
+如果要覆寫 `scrcpy-server` 檔案的路徑，則將路徑設定到環境變數中的 `SCRCPY_SERVER_PATH`。
+
+[相關連結][useful]
+
+[useful]: https://github.com/Genymobile/scrcpy/issues/278#issuecomment-429330345
+
+
+## 為何叫 _scrcpy_ ？
+
+有一個同事要我找一個跟 [gnirehtet] 一樣難念的名字。
+
+[`strcpy`] 複製一個字串 (**str**ing)；`scrcpy` 複製一個螢幕 (**scr**een)。
+
+[gnirehtet]: https://github.com/Genymobile/gnirehtet
+[`strcpy`]: http://man7.org/linux/man-pages/man3/strcpy.3.html
+
+
+## 如何編譯？
+
+請看[這份文件 (英文)][BUILD]。
+
+[BUILD]: BUILD.md
+
+
+## 常見問題
+
+請看[這份文件 (英文)][FAQ]。
+
+[FAQ]: FAQ.md
+
+
+## 開發者文件
+
+請看[這個頁面 (英文)][developers page].
+
+[developers page]: DEVELOP.md
+
+
+## Licence
+
+    Copyright (C) 2018 Genymobile
+    Copyright (C) 2018-2021 Romain Vimont
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+
+## 相關文章
+
+- [Scrcpy 簡介 (英文)][article-intro]
+- [Scrcpy 可以無線連線了 (英文)][article-tcpip]
+
+[article-intro]: https://blog.rom1v.com/2018/03/introducing-scrcpy/
+[article-tcpip]: https://www.genymotion.com/blog/open-source-project-scrcpy-now-works-wirelessly/

app/meson.build

@@ -1,7 +1,8 @@
 src = [
     'src/main.c',
+    'src/adb.c',
     'src/cli.c',
-    'src/command.c',
+    'src/compat.c',
     'src/control_msg.c',
     'src/controller.c',
     'src/decoder.c',
@@ -21,9 +22,28 @@ src = [
     'src/tiny_xpm.c',
     'src/video_buffer.c',
     'src/util/net.c',
-    'src/util/str_util.c'
+    'src/util/process.c',
+    'src/util/str_util.c',
+    'src/util/thread.c',
 ]
 
+if host_machine.system() == 'windows'
+    src += [ 'src/sys/win/process.c' ]
+else
+    src += [ 'src/sys/unix/process.c' ]
+endif
+
+v4l2_support = host_machine.system() == 'linux'
+if v4l2_support
+    src += [ 'src/v4l2_sink.c' ]
+endif
+
+check_functions = [
+    'strdup'
+]
+
+cc = meson.get_compiler('c')
+
 if not get_option('crossbuild_windows')
 
     # native build
@@ -34,11 +54,13 @@ if not get_option('crossbuild_windows')
         dependency('sdl2'),
     ]
 
+    if v4l2_support
+        dependencies += dependency('libavdevice')
+    endif
+
 else
 
     # cross-compile mingw32 build (from Linux to Windows)
-    cc = meson.get_compiler('c')
-
     prebuilt_sdl2 = meson.get_cross_property('prebuilt_sdl2')
     sdl2_bin_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/bin'
     sdl2_lib_dir = meson.current_source_dir() + '/../prebuilt-deps/' + prebuilt_sdl2 + '/lib'
@@ -73,19 +95,18 @@ else
 
 endif
 
-cc = meson.get_compiler('c')
-
 if host_machine.system() == 'windows'
-    src += [ 'src/sys/win/command.c' ]
     dependencies += cc.find_library('ws2_32')
-else
-    src += [ 'src/sys/unix/command.c' ]
 endif
 
 conf = configuration_data()
 
-# expose the build type
-conf.set('NDEBUG', get_option('buildtype') != 'debug')
+foreach f : check_functions
+  if cc.has_function(f)
+    define = 'HAVE_' + f.underscorify().to_upper()
+    conf.set(define, true)
+  endif
+endforeach
 
 # the version, updated on release
 conf.set_quoted('SCRCPY_VERSION', meson.project_version())
@@ -102,48 +123,28 @@ conf.set('PORTABLE', get_option('portable'))
 conf.set('DEFAULT_LOCAL_PORT_RANGE_FIRST', '27183')
 conf.set('DEFAULT_LOCAL_PORT_RANGE_LAST', '27199')
 
-# the default max video size for both dimensions, in pixels
-# overridden by option --max-size
-conf.set('DEFAULT_MAX_SIZE', '0')  # 0: unlimited
-
-# the default video orientation
-# natural device orientation is 0 and each increment adds 90 degrees
-# counterclockwise
-# overridden by option --lock-video-orientation
-conf.set('DEFAULT_LOCK_VIDEO_ORIENTATION', '-1')  # -1: unlocked
-
 # the default video bitrate, in bits/second
 # overridden by option --bit-rate
 conf.set('DEFAULT_BIT_RATE', '8000000')  # 8Mbps
 
-# enable High DPI support
-conf.set('HIDPI_SUPPORT', get_option('hidpi_support'))
-
-# disable console on Windows
-conf.set('WINDOWS_NOCONSOLE', get_option('windows_noconsole'))
-
 # run a server debugger and wait for a client to be attached
 conf.set('SERVER_DEBUGGER', get_option('server_debugger'))
 
 # select the debugger method ('old' for Android < 9, 'new' for Android >= 9)
 conf.set('SERVER_DEBUGGER_METHOD_NEW', get_option('server_debugger_method') == 'new')
 
+# enable V4L2 support (linux only)
+conf.set('HAVE_V4L2', v4l2_support)
+
 configure_file(configuration: conf, output: 'config.h')
 
 src_dir = include_directories('src')
 
-if get_option('windows_noconsole')
-    link_args = [ '-Wl,--subsystem,windows' ]
-else
-    link_args = []
-endif
-
 executable('scrcpy', src,
            dependencies: dependencies,
            include_directories: src_dir,
            install: true,
-           c_args: [],
-           link_args: link_args)
+           c_args: [])
 
 install_man('scrcpy.1')
 

app/scrcpy.1

@@ -56,10 +56,18 @@ The list of possible display ids can be listed by "adb shell dumpsys display"
 
 Default is 0.
 
+.TP
+.BI "\-\-encoder " name
+Use a specific MediaCodec encoder (must be a H.264 encoder).
+
 .TP
 .B \-\-force\-adb\-forward
 Do not attempt to use "adb reverse" to connect to the device.
 
+.TP
+.B \-\-forward\-all\-clicks
+By default, right-click triggers BACK (or POWER on) and middle-click triggers HOME. This option disables these shortcuts and forward the clicks to the device instead.
+
 .TP
 .B \-f, \-\-fullscreen
 Start in fullscreen.
@@ -69,10 +77,18 @@ Start in fullscreen.
 Print this help.
 
 .TP
-.BI "\-\-lock\-video\-orientation " value
-Lock video orientation to \fIvalue\fR. Possible values are -1 (unlocked), 0, 1, 2 and 3. Natural device orientation is 0, and each increment adds a 90 degrees otation counterclockwise.
+.B \-\-legacy\-paste
+Inject computer clipboard text as a sequence of key events on Ctrl+v (like MOD+Shift+v).
 
-Default is -1 (unlocked).
+This is a workaround for some devices not behaving as expected when setting the device clipboard programmatically.
+
+.TP
+.BI "\-\-lock\-video\-orientation " [value]
+Lock video orientation to \fIvalue\fR. Possible values are "unlocked", "initial" (locked to the initial orientation), 0, 1, 2 and 3. Natural device orientation is 0, and each increment adds a 90 degrees otation counterclockwise.
+
+Default is "unlocked".
+
+Passing the option without argument is equivalent to passing "initial".
 
 .TP
 .BI "\-\-max\-fps " value
@@ -92,14 +108,14 @@ Disable device control (mirror the device in read\-only).
 .B \-N, \-\-no\-display
 Do not display device (only when screen recording is enabled).
 
-.TP
-.B \-\-no\-mipmaps
-If the renderer is OpenGL 3.0+ or OpenGL ES 2.0+, then mipmaps are automatically generated to improve downscaling quality. This option disables the generation of mipmaps.
-
 .TP
 .B \-\-no\-key\-repeat
 Do not forward repeated key events when a key is held down.
 
+.TP
+.B \-\-no\-mipmaps
+If the renderer is OpenGL 3.0+ or OpenGL ES 2.0+, then mipmaps are automatically generated to improve downscaling quality. This option disables the generation of mipmaps.
+
 .TP
 .BI "\-p, \-\-port " port[:port]
 Set the TCP port (range) used by the client to listen.
@@ -141,10 +157,6 @@ Supported names are currently "direct3d", "opengl", "opengles2", "opengles", "me
 .UR https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER
 .UE
 
-.TP
-.B \-\-render\-expired\-frames
-By default, to minimize latency, scrcpy always renders the last available decoded frame, and drops any previous ones. This flag forces to render all frames, at a cost of a possible increased latency.
-
 .TP
 .BI "\-\-rotation " value
 Set the initial display rotation. Possibles values are 0, 1, 2 and 3. Each increment adds a 90 degrees rotation counterclockwise.
@@ -174,8 +186,10 @@ Enable "show touches" on start, restore the initial value on exit.
 It only shows physical touches (not clicks from scrcpy).
 
 .TP
-.B \-v, \-\-version
-Print the version of scrcpy.
+.BI "\-\-v4l2-sink " /dev/videoN
+Output to v4l2loopback device.
+
+It requires to lock the video orientation (see --lock-video-orientation).
 
 .TP
 .BI "\-V, \-\-verbosity " value
@@ -183,6 +197,10 @@ Set the log level ("debug", "info", "warn" or "error").
 
 Default is "info" for release builds, "debug" for debug builds.
 
+.TP
+.B \-v, \-\-version
+Print the version of scrcpy.
+
 .TP
 .B \-w, \-\-stay-awake
 Keep the device on while scrcpy is running, when the device is plugged in.
@@ -222,7 +240,7 @@ Default is 0 (automatic).\n
 .SH SHORTCUTS
 
 In the following list, MOD is the shortcut modifier. By default, it's (left)
-Alt or (left) Super, but it can be configured by \-\-shortcut-mod.
+Alt or (left) Super, but it can be configured by \-\-shortcut-mod (see above).
 
 .TP
 .B MOD+f
@@ -316,6 +334,10 @@ Inject computer clipboard text as a sequence of key events
 .B MOD+i
 Enable/disable FPS counter (print frames/second in logs)
 
+.TP
+.B Ctrl+click-and-move
+Pinch-to-zoom from the center of the screen
+
 .TP
 .B Drag & drop APK file
 Install APK from computer

app/src/adb.c

@@ -1,12 +1,10 @@
-#include "command.h"
+#include "adb.h"
 
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
-#include "common.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -70,7 +68,7 @@ show_adb_installation_msg() {
         {"pacman", "pacman -S android-tools"},
     };
     for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
-        if (cmd_search(pkg_managers[i].binary)) {
+        if (search_executable(pkg_managers[i].binary)) {
             LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
             return;
         }
@@ -118,7 +116,7 @@ adb_execute(const char *serial, const char *const adb_cmd[], size_t len) {
 
     memcpy(&cmd[i], adb_cmd, len * sizeof(const char *));
     cmd[len + i] = NULL;
-    enum process_result r = cmd_execute(cmd, &process);
+    enum process_result r = process_execute(cmd, &process);
     if (r != PROCESS_SUCCESS) {
         show_adb_err_msg(r, cmd);
         return PROCESS_NONE;
@@ -175,7 +173,7 @@ adb_push(const char *serial, const char *local, const char *remote) {
     }
     remote = strquote(remote);
     if (!remote) {
-        SDL_free((void *) local);
+        free((void *) local);
         return PROCESS_NONE;
     }
 #endif
@@ -184,8 +182,8 @@ adb_push(const char *serial, const char *local, const char *remote) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) remote);
-    SDL_free((void *) local);
+    free((void *) remote);
+    free((void *) local);
 #endif
 
     return proc;
@@ -206,26 +204,8 @@ adb_install(const char *serial, const char *local) {
     process_t proc = adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
 
 #ifdef __WINDOWS__
-    SDL_free((void *) local);
+    free((void *) local);
 #endif
 
     return proc;
 }
-
-bool
-process_check_success(process_t proc, const char *name) {
-    if (proc == PROCESS_NONE) {
-        LOGE("Could not execute \"%s\"", name);
-        return false;
-    }
-    exit_code_t exit_code;
-    if (!cmd_simple_wait(proc, &exit_code)) {
-        if (exit_code != NO_EXIT_CODE) {
-            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
-        } else {
-            LOGE("\"%s\" exited unexpectedly", name);
-        }
-        return false;
-    }
-    return true;
-}

app/src/adb.h

@@ -0,0 +1,34 @@
+#ifndef SC_ADB_H
+#define SC_ADB_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <inttypes.h>
+
+#include "util/process.h"
+
+process_t
+adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
+
+process_t
+adb_forward(const char *serial, uint16_t local_port,
+            const char *device_socket_name);
+
+process_t
+adb_forward_remove(const char *serial, uint16_t local_port);
+
+process_t
+adb_reverse(const char *serial, const char *device_socket_name,
+            uint16_t local_port);
+
+process_t
+adb_reverse_remove(const char *serial, const char *device_socket_name);
+
+process_t
+adb_push(const char *serial, const char *local, const char *remote);
+
+process_t
+adb_install(const char *serial, const char *local);
+
+#endif

app/src/cli.c

@@ -6,11 +6,13 @@
 #include <stdio.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
+#define STR_IMPL_(x) #x
+#define STR(x) STR_IMPL_(x)
+
 void
 scrcpy_print_usage(const char *arg0) {
     fprintf(stderr,
@@ -24,7 +26,7 @@ scrcpy_print_usage(const char *arg0) {
         "    -b, --bit-rate value\n"
         "        Encode the video at the given bit-rate, expressed in bits/s.\n"
         "        Unit suffixes are supported: 'K' (x1000) and 'M' (x1000000).\n"
-        "        Default is %d.\n"
+        "        Default is " STR(DEFAULT_BIT_RATE) ".\n"
         "\n"
         "    --codec-options key[:type]=value[,...]\n"
         "        Set a list of comma-separated key:type=value options for the\n"
@@ -53,22 +55,39 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "        Default is 0.\n"
         "\n"
+        "    --encoder name\n"
+        "        Use a specific MediaCodec encoder (must be a H.264 encoder).\n"
+        "\n"
         "    --force-adb-forward\n"
         "        Do not attempt to use \"adb reverse\" to connect to the\n"
         "        the device.\n"
         "\n"
+        "    --forward-all-clicks\n"
+        "        By default, right-click triggers BACK (or POWER on) and\n"
+        "        middle-click triggers HOME. This option disables these\n"
+        "        shortcuts and forward the clicks to the device instead.\n"
+        "\n"
         "    -f, --fullscreen\n"
         "        Start in fullscreen.\n"
         "\n"
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
-        "    --lock-video-orientation value\n"
+        "    --legacy-paste\n"
+        "        Inject computer clipboard text as a sequence of key events\n"
+        "        on Ctrl+v (like MOD+Shift+v).\n"
+        "        This is a workaround for some devices not behaving as\n"
+        "        expected when setting the device clipboard programmatically.\n"
+        "\n"
+        "    --lock-video-orientation [value]\n"
         "        Lock video orientation to value.\n"
-        "        Possible values are -1 (unlocked), 0, 1, 2 and 3.\n"
+        "        Possible values are \"unlocked\", \"initial\" (locked to the\n"
+        "        initial orientation), 0, 1, 2 and 3.\n"
         "        Natural device orientation is 0, and each increment adds a\n"
         "        90 degrees rotation counterclockwise.\n"
-        "        Default is %d%s.\n"
+        "        Default is \"unlocked\".\n"
+        "        Passing the option without argument is equivalent to passing\n"
+        "        \"initial\".\n"
         "\n"
         "    --max-fps value\n"
         "        Limit the frame rate of screen capture (officially supported\n"
@@ -78,7 +97,7 @@ scrcpy_print_usage(const char *arg0) {
         "        Limit both the width and height of the video to value. The\n"
         "        other dimension is computed so that the device aspect-ratio\n"
         "        is preserved.\n"
-        "        Default is %d%s.\n"
+        "        Default is 0 (unlimited).\n"
         "\n"
         "    -n, --no-control\n"
         "        Disable device control (mirror the device in read-only).\n"
@@ -87,17 +106,18 @@ scrcpy_print_usage(const char *arg0) {
         "        Do not display device (only when screen recording is\n"
         "        enabled).\n"
         "\n"
+        "    --no-key-repeat\n"
+        "        Do not forward repeated key events when a key is held down.\n"
+        "\n"
         "    --no-mipmaps\n"
         "        If the renderer is OpenGL 3.0+ or OpenGL ES 2.0+, then\n"
         "        mipmaps are automatically generated to improve downscaling\n"
         "        quality. This option disables the generation of mipmaps.\n"
         "\n"
-        "    --no-key-repeat\n"
-        "        Do not forward repeated key events when a key is held down.\n"
-        "\n"
         "    -p, --port port[:port]\n"
         "        Set the TCP port (range) used by the client to listen.\n"
-        "        Default is %d:%d.\n"
+        "        Default is " STR(DEFAULT_LOCAL_PORT_RANGE_FIRST) ":"
+                              STR(DEFAULT_LOCAL_PORT_RANGE_LAST) ".\n"
         "\n"
         "    --prefer-text\n"
         "        Inject alpha characters and space as text events instead of\n"
@@ -126,12 +146,6 @@ scrcpy_print_usage(const char *arg0) {
         "        \"opengles2\", \"opengles\", \"metal\" and \"software\".\n"
         "        <https://wiki.libsdl.org/SDL_HINT_RENDER_DRIVER>\n"
         "\n"
-        "    --render-expired-frames\n"
-        "        By default, to minimize latency, scrcpy always renders the\n"
-        "        last available decoded frame, and drops any previous ones.\n"
-        "        This flag forces to render all frames, at a cost of a\n"
-        "        possible increased latency.\n"
-        "\n"
         "    --rotation value\n"
         "        Set the initial display rotation.\n"
         "        Possibles values are 0, 1, 2 and 3. Each increment adds a 90\n"
@@ -162,9 +176,13 @@ scrcpy_print_usage(const char *arg0) {
         "        on exit.\n"
         "        It only shows physical touches (not clicks from scrcpy).\n"
         "\n"
-        "    -v, --version\n"
-        "        Print the version of scrcpy.\n"
+#ifdef HAVE_V4L2
+        "    --v4l2-sink /dev/videoN\n"
+        "        Output to v4l2loopback device.\n"
+        "        It requires to lock the video orientation (see\n"
+        "        --lock-video-orientation).\n"
         "\n"
+#endif
         "    -V, --verbosity value\n"
         "        Set the log level (debug, info, warn or error).\n"
 #ifndef NDEBUG
@@ -172,6 +190,9 @@ scrcpy_print_usage(const char *arg0) {
 #else
         "        Default is info.\n"
 #endif
+        "\n"
+        "    -v, --version\n"
+        "        Print the version of scrcpy.\n"
         "\n"
         "    -w, --stay-awake\n"
         "        Keep the device on while scrcpy is running, when the device\n"
@@ -203,7 +224,7 @@ scrcpy_print_usage(const char *arg0) {
         "\n"
         "    In the following list, MOD is the shortcut modifier. By default,\n"
         "    it's (left) Alt or (left) Super, but it can be configured by\n"
-        "    --shortcut-mod.\n"
+        "    --shortcut-mod (see above).\n"
         "\n"
         "    MOD+f\n"
         "        Switch fullscreen mode\n"
@@ -279,14 +300,12 @@ scrcpy_print_usage(const char *arg0) {
         "    MOD+i\n"
         "        Enable/disable FPS counter (print frames/second in logs)\n"
         "\n"
+        "    Ctrl+click-and-move\n"
+        "        Pinch-to-zoom from the center of the screen\n"
+        "\n"
         "    Drag & drop APK file\n"
         "        Install APK from computer\n"
-        "\n",
-        arg0,
-        DEFAULT_BIT_RATE,
-        DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
-        DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
+        "\n", arg0);
 }
 
 static bool
@@ -374,15 +393,27 @@ parse_max_fps(const char *s, uint16_t *max_fps) {
 }
 
 static bool
-parse_lock_video_orientation(const char *s, int8_t *lock_video_orientation) {
+parse_lock_video_orientation(const char *s,
+                             enum sc_lock_video_orientation *lock_mode) {
+    if (!s || !strcmp(s, "initial")) {
+        // Without argument, lock the initial orientation
+        *lock_mode = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+        return true;
+    }
+
+    if (!strcmp(s, "unlocked")) {
+        *lock_mode = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED;
+        return true;
+    }
+
     long value;
-    bool ok = parse_integer_arg(s, &value, false, -1, 3,
+    bool ok = parse_integer_arg(s, &value, false, 0, 3,
                                 "lock video orientation");
     if (!ok) {
         return false;
     }
 
-    *lock_video_orientation = (int8_t) value;
+    *lock_mode = (enum sc_lock_video_orientation) value;
     return true;
 }
 
@@ -461,14 +492,14 @@ parse_port_range(const char *s, struct sc_port_range *port_range) {
 }
 
 static bool
-parse_display_id(const char *s, uint16_t *display_id) {
+parse_display_id(const char *s, uint32_t *display_id) {
     long value;
-    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF, "display id");
+    bool ok = parse_integer_arg(s, &value, false, 0, 0x7FFFFFFF, "display id");
     if (!ok) {
         return false;
     }
 
-    *display_id = (uint16_t) value;
+    *display_id = (uint32_t) value;
     return true;
 }
 
@@ -529,7 +560,9 @@ parse_shortcut_mods_item(const char *item, size_t len) {
         } else if (STREQ("rsuper", item, key_len)) {
             mod |= SC_MOD_RSUPER;
         } else {
-            LOGW("Unknown modifier key: %.*s", (int) key_len, item);
+            LOGE("Unknown modifier key: %.*s "
+                 "(must be one of: lctrl, rctrl, lalt, ralt, lsuper, rsuper)",
+                 (int) key_len, item);
             return 0;
         }
 #undef STREQ
@@ -646,6 +679,11 @@ guess_record_format(const char *filename) {
 #define OPT_DISABLE_SCREENSAVER    1020
 #define OPT_SHORTCUT_MOD           1021
 #define OPT_NO_KEY_REPEAT          1022
+#define OPT_FORWARD_ALL_CLICKS     1023
+#define OPT_LEGACY_PASTE           1024
+#define OPT_ENCODER_NAME           1025
+#define OPT_POWER_OFF_ON_CLOSE     1026
+#define OPT_V4L2_SINK              1027
 
 bool
 scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
@@ -657,18 +695,22 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"disable-screensaver",    no_argument,       NULL,
                                                   OPT_DISABLE_SCREENSAVER},
         {"display",                required_argument, NULL, OPT_DISPLAY_ID},
+        {"encoder",                required_argument, NULL, OPT_ENCODER_NAME},
         {"force-adb-forward",      no_argument,       NULL,
                                                   OPT_FORCE_ADB_FORWARD},
+        {"forward-all-clicks",     no_argument,       NULL,
+                                                  OPT_FORWARD_ALL_CLICKS},
         {"fullscreen",             no_argument,       NULL, 'f'},
         {"help",                   no_argument,       NULL, 'h'},
-        {"lock-video-orientation", required_argument, NULL,
+        {"legacy-paste",           no_argument,       NULL, OPT_LEGACY_PASTE},
+        {"lock-video-orientation", optional_argument, NULL,
                                                   OPT_LOCK_VIDEO_ORIENTATION},
         {"max-fps",                required_argument, NULL, OPT_MAX_FPS},
         {"max-size",               required_argument, NULL, 'm'},
         {"no-control",             no_argument,       NULL, 'n'},
         {"no-display",             no_argument,       NULL, 'N'},
-        {"no-mipmaps",             no_argument,       NULL, OPT_NO_MIPMAPS},
         {"no-key-repeat",          no_argument,       NULL, OPT_NO_KEY_REPEAT},
+        {"no-mipmaps",             no_argument,       NULL, OPT_NO_MIPMAPS},
         {"port",                   required_argument, NULL, 'p'},
         {"prefer-text",            no_argument,       NULL, OPT_PREFER_TEXT},
         {"push-target",            required_argument, NULL, OPT_PUSH_TARGET},
@@ -683,6 +725,9 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"show-touches",           no_argument,       NULL, 't'},
         {"stay-awake",             no_argument,       NULL, 'w'},
         {"turn-screen-off",        no_argument,       NULL, 'S'},
+#ifdef HAVE_V4L2
+        {"v4l2-sink",              required_argument, NULL, OPT_V4L2_SINK},
+#endif
         {"verbosity",              required_argument, NULL, 'V'},
         {"version",                no_argument,       NULL, 'v'},
         {"window-title",           required_argument, NULL, OPT_WINDOW_TITLE},
@@ -692,6 +737,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"window-height",          required_argument, NULL, OPT_WINDOW_HEIGHT},
         {"window-borderless",      no_argument,       NULL,
                                                   OPT_WINDOW_BORDERLESS},
+        {"power-off-on-close",     no_argument,       NULL,
+                                                  OPT_POWER_OFF_ON_CLOSE},
         {NULL,                     0,                 NULL, 0  },
     };
 
@@ -744,7 +791,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 }
                 break;
             case OPT_LOCK_VIDEO_ORIENTATION:
-                if (!parse_lock_video_orientation(optarg, &opts->lock_video_orientation)) {
+                if (!parse_lock_video_orientation(optarg,
+                        &opts->lock_video_orientation)) {
                     return false;
                 }
                 break;
@@ -789,7 +837,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 opts->stay_awake = true;
                 break;
             case OPT_RENDER_EXPIRED_FRAMES:
-                opts->render_expired_frames = true;
+                LOGW("Option --render-expired-frames has been removed. This "
+                     "flag has been ignored.");
                 break;
             case OPT_WINDOW_TITLE:
                 opts->window_title = optarg;
@@ -840,6 +889,9 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
             case OPT_CODEC_OPTIONS:
                 opts->codec_options = optarg;
                 break;
+            case OPT_ENCODER_NAME:
+                opts->encoder_name = optarg;
+                break;
             case OPT_FORCE_ADB_FORWARD:
                 opts->force_adb_forward = true;
                 break;
@@ -851,16 +903,45 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                     return false;
                 }
                 break;
+            case OPT_FORWARD_ALL_CLICKS:
+                opts->forward_all_clicks = true;
+                break;
+            case OPT_LEGACY_PASTE:
+                opts->legacy_paste = true;
+                break;
+            case OPT_POWER_OFF_ON_CLOSE:
+                opts->power_off_on_close = true;
+                break;
+#ifdef HAVE_V4L2
+            case OPT_V4L2_SINK:
+                opts->v4l2_device = optarg;
+                break;
+#endif
             default:
                 // getopt prints the error message on stderr
                 return false;
         }
     }
 
+#ifdef HAVE_V4L2
+    if (!opts->display && !opts->record_filename && !opts->v4l2_device) {
+        LOGE("-N/--no-display requires either screen recording (-r/--record)"
+             " or sink to v4l2loopback device (--v4l2-sink)");
+        return false;
+    }
+
+    if (opts->v4l2_device && opts->lock_video_orientation
+                             == SC_LOCK_VIDEO_ORIENTATION_UNLOCKED) {
+        LOGI("Video orientation is locked for v4l2 sink. "
+             "See --lock-video-orientation.");
+        opts->lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_INITIAL;
+    }
+#else
     if (!opts->display && !opts->record_filename) {
         LOGE("-N/--no-display requires screen recording (-r/--record)");
         return false;
     }
+#endif
 
     int index = optind;
     if (index < argc) {

app/src/cli.h

@@ -1,9 +1,10 @@
 #ifndef SCRCPY_CLI_H
 #define SCRCPY_CLI_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
-#include "config.h"
 #include "scrcpy.h"
 
 struct scrcpy_cli_args {

app/src/common.h

@@ -1,35 +1,14 @@
 #ifndef COMMON_H
 #define COMMON_H
 
-#include <stdint.h>
-
 #include "config.h"
+#include "compat.h"
 
 #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
 #define MIN(X,Y) (X) < (Y) ? (X) : (Y)
 #define MAX(X,Y) (X) > (Y) ? (X) : (Y)
 
-struct size {
-    uint16_t width;
-    uint16_t height;
-};
-
-struct point {
-    int32_t x;
-    int32_t y;
-};
-
-struct position {
-    // The video screen size may be different from the real device screen size,
-    // so store to which size the absolute position apply, to scale it
-    // accordingly.
-    struct size screen_size;
-    struct point point;
-};
-
-struct port_range {
-    uint16_t first;
-    uint16_t last;
-};
+#define container_of(ptr, type, member) \
+    ((type *) (((char *) (ptr)) - offsetof(type, member)))
 
 #endif

app/src/compat.c

@@ -0,0 +1,14 @@
+#include "compat.h"
+
+#include "config.h"
+
+#ifndef HAVE_STRDUP
+char *strdup(const char *s) {
+    size_t size = strlen(s) + 1;
+    char *dup = malloc(size);
+    if (dup) {
+        memcpy(dup, s, size);
+    }
+    return dup;
+}
+#endif

app/src/compat.h

@@ -1,19 +1,16 @@
 #ifndef COMPAT_H
 #define COMPAT_H
 
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 700
+#define _GNU_SOURCE
+#ifdef __APPLE__
+# define _DARWIN_C_SOURCE
+#endif
+
 #include <libavformat/version.h>
 #include <SDL2/SDL_version.h>
 
-// In ffmpeg/doc/APIchanges:
-// 2016-04-11 - 6f69f7a / 9200514 - lavf 57.33.100 / 57.5.0 - avformat.h
-//   Add AVStream.codecpar, deprecate AVStream.codec.
-#if    (LIBAVFORMAT_VERSION_MICRO >= 100 /* FFmpeg */ && \
-        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 33, 100)) \
-    || (LIBAVFORMAT_VERSION_MICRO < 100 && /* Libav */ \
-        LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(57, 5, 0))
-# define SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
-#endif
-
 // In ffmpeg/doc/APIchanges:
 // 2018-02-06 - 0694d87024 - lavf 58.9.100 - avformat.h
 //   Deprecate use of av_register_input_format(), av_register_output_format(),
@@ -25,15 +22,6 @@
 # define SCRCPY_LAVF_REQUIRES_REGISTER_ALL
 #endif
 
-// In ffmpeg/doc/APIchanges:
-// 2016-04-21 - 7fc329e - lavc 57.37.100 - avcodec.h
-//   Add a new audio/video encoding and decoding API with decoupled input
-//   and output -- avcodec_send_packet(), avcodec_receive_frame(),
-//   avcodec_send_frame() and avcodec_receive_packet().
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(57, 37, 100)
-# define SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
-#endif
-
 #if SDL_VERSION_ATLEAST(2, 0, 5)
 // <https://wiki.libsdl.org/SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH>
 # define SCRCPY_SDL_HAS_HINT_MOUSE_FOCUS_CLICKTHROUGH
@@ -48,4 +36,8 @@
 # define SCRCPY_SDL_HAS_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR
 #endif
 
+#ifndef HAVE_STRDUP
+char *strdup(const char *s);
+#endif
+
 #endif

app/src/control_msg.c

@@ -1,9 +1,9 @@
 #include "control_msg.h"
 
 #include <assert.h>
+#include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 #include "util/str_util.h"
@@ -67,6 +67,9 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
             buffer_write32be(&buf[17],
                              (uint32_t) msg->inject_scroll_event.vscroll);
             return 21;
+        case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
+            buf[1] = msg->inject_keycode.action;
+            return 2;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD: {
             buf[1] = !!msg->set_clipboard.paste;
             size_t len = write_string(msg->set_clipboard.text,
@@ -77,9 +80,9 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
         case CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE:
             buf[1] = msg->set_screen_power_mode.mode;
             return 2;
-        case CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON:
         case CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL:
-        case CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL:
+        case CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL:
+        case CONTROL_MSG_TYPE_COLLAPSE_PANELS:
         case CONTROL_MSG_TYPE_GET_CLIPBOARD:
         case CONTROL_MSG_TYPE_ROTATE_DEVICE:
             // no additional data
@@ -94,10 +97,10 @@ void
 control_msg_destroy(struct control_msg *msg) {
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_TEXT:
-            SDL_free(msg->inject_text.text);
+            free(msg->inject_text.text);
             break;
         case CONTROL_MSG_TYPE_SET_CLIPBOARD:
-            SDL_free(msg->set_clipboard.text);
+            free(msg->set_clipboard.text);
             break;
         default:
             // do nothing

app/src/control_msg.h

@@ -1,14 +1,15 @@
 #ifndef CONTROLMSG_H
 #define CONTROLMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
-#include "config.h"
 #include "android/input.h"
 #include "android/keycodes.h"
-#include "common.h"
+#include "coords.h"
 
 #define CONTROL_MSG_MAX_SIZE (1 << 18) // 256k
 
@@ -17,6 +18,7 @@
 #define CONTROL_MSG_CLIPBOARD_TEXT_MAX_LENGTH (CONTROL_MSG_MAX_SIZE - 6)
 
 #define POINTER_ID_MOUSE UINT64_C(-1);
+#define POINTER_ID_VIRTUAL_FINGER UINT64_C(-2);
 
 enum control_msg_type {
     CONTROL_MSG_TYPE_INJECT_KEYCODE,
@@ -25,7 +27,8 @@ enum control_msg_type {
     CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
     CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
     CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
-    CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+    CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
+    CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     CONTROL_MSG_TYPE_GET_CLIPBOARD,
     CONTROL_MSG_TYPE_SET_CLIPBOARD,
     CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
@@ -48,7 +51,7 @@ struct control_msg {
             enum android_metastate metastate;
         } inject_keycode;
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            char *text; // owned, to be freed by free()
         } inject_text;
         struct {
             enum android_motionevent_action action;
@@ -63,7 +66,11 @@ struct control_msg {
             int32_t vscroll;
         } inject_scroll_event;
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            enum android_keyevent_action action; // action for the BACK key
+            // screen may only be turned on on ACTION_DOWN
+        } back_or_screen_on;
+        struct {
+            char *text; // owned, to be freed by free()
             bool paste;
         } set_clipboard;
         struct {

app/src/controller.c

@@ -2,26 +2,27 @@
 
 #include <assert.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
 controller_init(struct controller *controller, socket_t control_socket) {
     cbuf_init(&controller->queue);
 
-    if (!receiver_init(&controller->receiver, control_socket)) {
+    bool ok = receiver_init(&controller->receiver, control_socket);
+    if (!ok) {
         return false;
     }
 
-    if (!(controller->mutex = SDL_CreateMutex())) {
+    ok = sc_mutex_init(&controller->mutex);
+    if (!ok) {
         receiver_destroy(&controller->receiver);
         return false;
     }
 
-    if (!(controller->msg_cond = SDL_CreateCond())) {
+    ok = sc_cond_init(&controller->msg_cond);
+    if (!ok) {
         receiver_destroy(&controller->receiver);
-        SDL_DestroyMutex(controller->mutex);
+        sc_mutex_destroy(&controller->mutex);
         return false;
     }
 
@@ -33,8 +34,8 @@ controller_init(struct controller *controller, socket_t control_socket) {
 
 void
 controller_destroy(struct controller *controller) {
-    SDL_DestroyCond(controller->msg_cond);
-    SDL_DestroyMutex(controller->mutex);
+    sc_cond_destroy(&controller->msg_cond);
+    sc_mutex_destroy(&controller->mutex);
 
     struct control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
@@ -47,13 +48,13 @@ controller_destroy(struct controller *controller) {
 bool
 controller_push_msg(struct controller *controller,
                       const struct control_msg *msg) {
-    mutex_lock(controller->mutex);
+    sc_mutex_lock(&controller->mutex);
     bool was_empty = cbuf_is_empty(&controller->queue);
     bool res = cbuf_push(&controller->queue, *msg);
     if (was_empty) {
-        cond_signal(controller->msg_cond);
+        sc_cond_signal(&controller->msg_cond);
     }
-    mutex_unlock(controller->mutex);
+    sc_mutex_unlock(&controller->mutex);
     return res;
 }
 
@@ -61,12 +62,12 @@ static bool
 process_msg(struct controller *controller,
               const struct control_msg *msg) {
     static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    int length = control_msg_serialize(msg, serialized_msg);
+    size_t length = control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
     int w = net_send_all(controller->control_socket, serialized_msg, length);
-    return w == length;
+    return (size_t) w == length;
 }
 
 static int
@@ -74,20 +75,20 @@ run_controller(void *data) {
     struct controller *controller = data;
 
     for (;;) {
-        mutex_lock(controller->mutex);
+        sc_mutex_lock(&controller->mutex);
         while (!controller->stopped && cbuf_is_empty(&controller->queue)) {
-            cond_wait(controller->msg_cond, controller->mutex);
+            sc_cond_wait(&controller->msg_cond, &controller->mutex);
         }
         if (controller->stopped) {
             // stop immediately, do not process further msgs
-            mutex_unlock(controller->mutex);
+            sc_mutex_unlock(&controller->mutex);
             break;
         }
         struct control_msg msg;
         bool non_empty = cbuf_take(&controller->queue, &msg);
         assert(non_empty);
         (void) non_empty;
-        mutex_unlock(controller->mutex);
+        sc_mutex_unlock(&controller->mutex);
 
         bool ok = process_msg(controller, &msg);
         control_msg_destroy(&msg);
@@ -103,16 +104,16 @@ bool
 controller_start(struct controller *controller) {
     LOGD("Starting controller thread");
 
-    controller->thread = SDL_CreateThread(run_controller, "controller",
-                                          controller);
-    if (!controller->thread) {
+    bool ok = sc_thread_create(&controller->thread, run_controller,
+                               "controller", controller);
+    if (!ok) {
         LOGC("Could not start controller thread");
         return false;
     }
 
     if (!receiver_start(&controller->receiver)) {
         controller_stop(controller);
-        SDL_WaitThread(controller->thread, NULL);
+        sc_thread_join(&controller->thread, NULL);
         return false;
     }
 
@@ -121,14 +122,14 @@ controller_start(struct controller *controller) {
 
 void
 controller_stop(struct controller *controller) {
-    mutex_lock(controller->mutex);
+    sc_mutex_lock(&controller->mutex);
     controller->stopped = true;
-    cond_signal(controller->msg_cond);
-    mutex_unlock(controller->mutex);
+    sc_cond_signal(&controller->msg_cond);
+    sc_mutex_unlock(&controller->mutex);
 }
 
 void
 controller_join(struct controller *controller) {
-    SDL_WaitThread(controller->thread, NULL);
+    sc_thread_join(&controller->thread, NULL);
     receiver_join(&controller->receiver);
 }

app/src/controller.h

@@ -1,23 +1,23 @@
 #ifndef CONTROLLER_H
 #define CONTROLLER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "control_msg.h"
 #include "receiver.h"
 #include "util/cbuf.h"
 #include "util/net.h"
+#include "util/thread.h"
 
 struct control_msg_queue CBUF(struct control_msg, 64);
 
 struct controller {
     socket_t control_socket;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *msg_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond msg_cond;
     bool stopped;
     struct control_msg_queue queue;
     struct receiver receiver;

app/src/coords.h

@@ -0,0 +1,24 @@
+#ifndef SC_COORDS
+#define SC_COORDS
+
+#include <stdint.h>
+
+struct size {
+    uint16_t width;
+    uint16_t height;
+};
+
+struct point {
+    int32_t x;
+    int32_t y;
+};
+
+struct position {
+    // The video screen size may be different from the real device screen size,
+    // so store to which size the absolute position apply, to scale it
+    // accordingly.
+    struct size screen_size;
+    struct point point;
+};
+
+#endif

app/src/decoder.c

@@ -1,42 +1,43 @@
 #include "decoder.h"
 
 #include <libavformat/avformat.h>
-#include <libavutil/time.h>
-#include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
-#include <unistd.h>
 
-#include "config.h"
-#include "compat.h"
 #include "events.h"
-#include "recorder.h"
 #include "video_buffer.h"
-#include "util/buffer_util.h"
+#include "trait/frame_sink.h"
 #include "util/log.h"
 
-// set the decoded frame as ready for rendering, and notify
+/** Downcast packet_sink to decoder */
+#define DOWNCAST(SINK) container_of(SINK, struct decoder, packet_sink)
+
 static void
-push_frame(struct decoder *decoder) {
-    bool previous_frame_skipped;
-    video_buffer_offer_decoded_frame(decoder->video_buffer,
-                                     &previous_frame_skipped);
-    if (previous_frame_skipped) {
-        // the previous EVENT_NEW_FRAME will consume this frame
-        return;
+decoder_close_first_sinks(struct decoder *decoder, unsigned count) {
+    while (count) {
+        struct sc_frame_sink *sink = decoder->sinks[--count];
+        sink->ops->close(sink);
     }
-    static SDL_Event new_frame_event = {
-        .type = EVENT_NEW_FRAME,
-    };
-    SDL_PushEvent(&new_frame_event);
 }
 
-void
-decoder_init(struct decoder *decoder, struct video_buffer *vb) {
-    decoder->video_buffer = vb;
+static inline void
+decoder_close_sinks(struct decoder *decoder) {
+    decoder_close_first_sinks(decoder, decoder->sink_count);
 }
 
-bool
+static bool
+decoder_open_sinks(struct decoder *decoder) {
+    for (unsigned i = 0; i < decoder->sink_count; ++i) {
+        struct sc_frame_sink *sink = decoder->sinks[i];
+        if (!sink->ops->open(sink)) {
+            LOGE("Could not open frame sink %d", i);
+            decoder_close_first_sinks(decoder, i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+static bool
 decoder_open(struct decoder *decoder, const AVCodec *codec) {
     decoder->codec_ctx = avcodec_alloc_context3(codec);
     if (!decoder->codec_ctx) {
@@ -50,52 +51,108 @@ decoder_open(struct decoder *decoder, const AVCodec *codec) {
         return false;
     }
 
+    decoder->frame = av_frame_alloc();
+    if (!decoder->frame) {
+        LOGE("Could not create decoder frame");
+        avcodec_close(decoder->codec_ctx);
+        avcodec_free_context(&decoder->codec_ctx);
+        return false;
+    }
+
+    if (!decoder_open_sinks(decoder)) {
+        LOGE("Could not open decoder sinks");
+        av_frame_free(&decoder->frame);
+        avcodec_close(decoder->codec_ctx);
+        avcodec_free_context(&decoder->codec_ctx);
+        return false;
+    }
+
     return true;
 }
 
-void
+static void
 decoder_close(struct decoder *decoder) {
+    decoder_close_sinks(decoder);
+    av_frame_free(&decoder->frame);
     avcodec_close(decoder->codec_ctx);
     avcodec_free_context(&decoder->codec_ctx);
 }
 
-bool
+static bool
+push_frame_to_sinks(struct decoder *decoder, const AVFrame *frame) {
+    for (unsigned i = 0; i < decoder->sink_count; ++i) {
+        struct sc_frame_sink *sink = decoder->sinks[i];
+        if (!sink->ops->push(sink, frame)) {
+            LOGE("Could not send frame to sink %d", i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
+static bool
 decoder_push(struct decoder *decoder, const AVPacket *packet) {
-// the new decoding/encoding API has been introduced by:
-// <http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=7fc329e2dd6226dfecaa4a1d7adf353bf2773726>
-#ifdef SCRCPY_LAVF_HAS_NEW_ENCODING_DECODING_API
-    int ret;
-    if ((ret = avcodec_send_packet(decoder->codec_ctx, packet)) < 0) {
+    bool is_config = packet->pts == AV_NOPTS_VALUE;
+    if (is_config) {
+        // nothing to do
+        return true;
+    }
+
+    int ret = avcodec_send_packet(decoder->codec_ctx, packet);
+    if (ret < 0 && ret != AVERROR(EAGAIN)) {
         LOGE("Could not send video packet: %d", ret);
         return false;
     }
-    ret = avcodec_receive_frame(decoder->codec_ctx,
-                                decoder->video_buffer->decoding_frame);
+    ret = avcodec_receive_frame(decoder->codec_ctx, decoder->frame);
     if (!ret) {
         // a frame was received
-        push_frame(decoder);
+        bool ok = push_frame_to_sinks(decoder, decoder->frame);
+        // A frame lost should not make the whole pipeline fail. The error, if
+        // any, is already logged.
+        (void) ok;
+
+        av_frame_unref(decoder->frame);
     } else if (ret != AVERROR(EAGAIN)) {
         LOGE("Could not receive video frame: %d", ret);
         return false;
     }
-#else
-    int got_picture;
-    int len = avcodec_decode_video2(decoder->codec_ctx,
-                                    decoder->video_buffer->decoding_frame,
-                                    &got_picture,
-                                    packet);
-    if (len < 0) {
-        LOGE("Could not decode video packet: %d", len);
-        return false;
-    }
-    if (got_picture) {
-        push_frame(decoder);
-    }
-#endif
     return true;
 }
 
-void
-decoder_interrupt(struct decoder *decoder) {
-    video_buffer_interrupt(decoder->video_buffer);
+static bool
+decoder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
+    struct decoder *decoder = DOWNCAST(sink);
+    return decoder_open(decoder, codec);
+}
+
+static void
+decoder_packet_sink_close(struct sc_packet_sink *sink) {
+    struct decoder *decoder = DOWNCAST(sink);
+    decoder_close(decoder);
+}
+
+static bool
+decoder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
+    struct decoder *decoder = DOWNCAST(sink);
+    return decoder_push(decoder, packet);
+}
+
+void
+decoder_init(struct decoder *decoder) {
+    static const struct sc_packet_sink_ops ops = {
+        .open = decoder_packet_sink_open,
+        .close = decoder_packet_sink_close,
+        .push = decoder_packet_sink_push,
+    };
+
+    decoder->packet_sink.ops = &ops;
+}
+
+void
+decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink) {
+    assert(decoder->sink_count < DECODER_MAX_SINKS);
+    assert(sink);
+    assert(sink->ops);
+    decoder->sinks[decoder->sink_count++] = sink;
 }

app/src/decoder.h

@@ -1,31 +1,29 @@
 #ifndef DECODER_H
 #define DECODER_H
 
+#include "common.h"
+
+#include "trait/packet_sink.h"
+
 #include <stdbool.h>
 #include <libavformat/avformat.h>
 
-#include "config.h"
-
-struct video_buffer;
+#define DECODER_MAX_SINKS 2
 
 struct decoder {
-    struct video_buffer *video_buffer;
+    struct sc_packet_sink packet_sink; // packet sink trait
+
+    struct sc_frame_sink *sinks[DECODER_MAX_SINKS];
+    unsigned sink_count;
+
     AVCodecContext *codec_ctx;
+    AVFrame *frame;
 };
 
 void
-decoder_init(struct decoder *decoder, struct video_buffer *vb);
-
-bool
-decoder_open(struct decoder *decoder, const AVCodec *codec);
+decoder_init(struct decoder *decoder);
 
 void
-decoder_close(struct decoder *decoder);
-
-bool
-decoder_push(struct decoder *decoder, const AVPacket *packet);
-
-void
-decoder_interrupt(struct decoder *decoder);
+decoder_add_sink(struct decoder *decoder, struct sc_frame_sink *sink);
 
 #endif

app/src/device.c

@@ -1,6 +1,5 @@
 #include "device.h"
 
-#include "config.h"
 #include "util/log.h"
 
 bool

app/src/device.h

@@ -1,10 +1,11 @@
 #ifndef DEVICE_H
 #define DEVICE_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
-#include "config.h"
-#include "common.h"
+#include "coords.h"
 #include "util/net.h"
 
 #define DEVICE_NAME_FIELD_LENGTH 64

app/src/device_msg.c

@@ -1,8 +1,8 @@
 #include "device_msg.h"
 
+#include <stdlib.h>
 #include <string.h>
 
-#include "config.h"
 #include "util/buffer_util.h"
 #include "util/log.h"
 
@@ -21,7 +21,7 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
             if (clipboard_len > len - 5) {
                 return 0; // not available
             }
-            char *text = SDL_malloc(clipboard_len + 1);
+            char *text = malloc(clipboard_len + 1);
             if (!text) {
                 LOGW("Could not allocate text for clipboard");
                 return -1;
@@ -43,6 +43,6 @@ device_msg_deserialize(const unsigned char *buf, size_t len,
 void
 device_msg_destroy(struct device_msg *msg) {
     if (msg->type == DEVICE_MSG_TYPE_CLIPBOARD) {
-        SDL_free(msg->clipboard.text);
+        free(msg->clipboard.text);
     }
 }

app/src/device_msg.h

@@ -1,12 +1,12 @@
 #ifndef DEVICEMSG_H
 #define DEVICEMSG_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
-#include "config.h"
-
 #define DEVICE_MSG_MAX_SIZE (1 << 18) // 256k
 // type: 1 byte; length: 4 bytes
 #define DEVICE_MSG_TEXT_MAX_LENGTH (DEVICE_MSG_MAX_SIZE - 5)
@@ -19,7 +19,7 @@ struct device_msg {
     enum device_msg_type type;
     union {
         struct {
-            char *text; // owned, to be freed by SDL_free()
+            char *text; // owned, to be freed by free()
         } clipboard;
     };
 };

app/src/event_converter.c

@@ -1,7 +1,5 @@
 #include "event_converter.h"
 
-#include "config.h"
-
 #define MAP(FROM, TO) case FROM: *to = TO; return true
 #define FAIL default: return false
 

app/src/event_converter.h

@@ -1,10 +1,11 @@
 #ifndef CONVERT_H
 #define CONVERT_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL_events.h>
 
-#include "config.h"
 #include "control_msg.h"
 
 bool

app/src/events.h

@@ -1,3 +1,2 @@
-#define EVENT_NEW_SESSION SDL_USEREVENT
-#define EVENT_NEW_FRAME (SDL_USEREVENT + 1)
-#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 2)
+#define EVENT_NEW_FRAME       SDL_USEREVENT
+#define EVENT_STREAM_STOPPED (SDL_USEREVENT + 1)

app/src/file_handler.c

@@ -3,16 +3,14 @@
 #include <assert.h>
 #include <string.h>
 
-#include "config.h"
-#include "command.h"
-#include "util/lock.h"
+#include "adb.h"
 #include "util/log.h"
 
 #define DEFAULT_PUSH_TARGET "/sdcard/"
 
 static void
 file_handler_request_destroy(struct file_handler_request *req) {
-    SDL_free(req->file);
+    free(req->file);
 }
 
 bool
@@ -21,21 +19,23 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
     cbuf_init(&file_handler->queue);
 
-    if (!(file_handler->mutex = SDL_CreateMutex())) {
+    bool ok = sc_mutex_init(&file_handler->mutex);
+    if (!ok) {
         return false;
     }
 
-    if (!(file_handler->event_cond = SDL_CreateCond())) {
-        SDL_DestroyMutex(file_handler->mutex);
+    ok = sc_cond_init(&file_handler->event_cond);
+    if (!ok) {
+        sc_mutex_destroy(&file_handler->mutex);
         return false;
     }
 
     if (serial) {
-        file_handler->serial = SDL_strdup(serial);
+        file_handler->serial = strdup(serial);
         if (!file_handler->serial) {
             LOGW("Could not strdup serial");
-            SDL_DestroyCond(file_handler->event_cond);
-            SDL_DestroyMutex(file_handler->mutex);
+            sc_cond_destroy(&file_handler->event_cond);
+            sc_mutex_destroy(&file_handler->mutex);
             return false;
         }
     } else {
@@ -55,9 +55,9 @@ file_handler_init(struct file_handler *file_handler, const char *serial,
 
 void
 file_handler_destroy(struct file_handler *file_handler) {
-    SDL_DestroyCond(file_handler->event_cond);
-    SDL_DestroyMutex(file_handler->mutex);
-    SDL_free(file_handler->serial);
+    sc_cond_destroy(&file_handler->event_cond);
+    sc_mutex_destroy(&file_handler->mutex);
+    free(file_handler->serial);
 
     struct file_handler_request req;
     while (cbuf_take(&file_handler->queue, &req)) {
@@ -93,13 +93,13 @@ file_handler_request(struct file_handler *file_handler,
         .file = file,
     };
 
-    mutex_lock(file_handler->mutex);
+    sc_mutex_lock(&file_handler->mutex);
     bool was_empty = cbuf_is_empty(&file_handler->queue);
     bool res = cbuf_push(&file_handler->queue, req);
     if (was_empty) {
-        cond_signal(file_handler->event_cond);
+        sc_cond_signal(&file_handler->event_cond);
     }
-    mutex_unlock(file_handler->mutex);
+    sc_mutex_unlock(&file_handler->mutex);
     return res;
 }
 
@@ -108,14 +108,14 @@ run_file_handler(void *data) {
     struct file_handler *file_handler = data;
 
     for (;;) {
-        mutex_lock(file_handler->mutex);
+        sc_mutex_lock(&file_handler->mutex);
         file_handler->current_process = PROCESS_NONE;
         while (!file_handler->stopped && cbuf_is_empty(&file_handler->queue)) {
-            cond_wait(file_handler->event_cond, file_handler->mutex);
+            sc_cond_wait(&file_handler->event_cond, &file_handler->mutex);
         }
         if (file_handler->stopped) {
             // stop immediately, do not process further events
-            mutex_unlock(file_handler->mutex);
+            sc_mutex_unlock(&file_handler->mutex);
             break;
         }
         struct file_handler_request req;
@@ -133,16 +133,16 @@ run_file_handler(void *data) {
                                 file_handler->push_target);
         }
         file_handler->current_process = process;
-        mutex_unlock(file_handler->mutex);
+        sc_mutex_unlock(&file_handler->mutex);
 
         if (req.action == ACTION_INSTALL_APK) {
-            if (process_check_success(process, "adb install")) {
+            if (process_check_success(process, "adb install", false)) {
                 LOGI("%s successfully installed", req.file);
             } else {
                 LOGE("Failed to install %s", req.file);
             }
         } else {
-            if (process_check_success(process, "adb push")) {
+            if (process_check_success(process, "adb push", false)) {
                 LOGI("%s successfully pushed to %s", req.file,
                                                      file_handler->push_target);
             } else {
@@ -151,6 +151,14 @@ run_file_handler(void *data) {
             }
         }
 
+        sc_mutex_lock(&file_handler->mutex);
+        // Close the process (it is necessary already terminated)
+        // Execute this call with mutex locked to avoid race conditions with
+        // file_handler_stop()
+        process_close(file_handler->current_process);
+        file_handler->current_process = PROCESS_NONE;
+        sc_mutex_unlock(&file_handler->mutex);
+
         file_handler_request_destroy(&req);
     }
     return 0;
@@ -160,9 +168,9 @@ bool
 file_handler_start(struct file_handler *file_handler) {
     LOGD("Starting file_handler thread");
 
-    file_handler->thread = SDL_CreateThread(run_file_handler, "file_handler",
-                                            file_handler);
-    if (!file_handler->thread) {
+    bool ok = sc_thread_create(&file_handler->thread, run_file_handler,
+                               "file_handler", file_handler);
+    if (!ok) {
         LOGC("Could not start file_handler thread");
         return false;
     }
@@ -172,20 +180,18 @@ file_handler_start(struct file_handler *file_handler) {
 
 void
 file_handler_stop(struct file_handler *file_handler) {
-    mutex_lock(file_handler->mutex);
+    sc_mutex_lock(&file_handler->mutex);
     file_handler->stopped = true;
-    cond_signal(file_handler->event_cond);
+    sc_cond_signal(&file_handler->event_cond);
     if (file_handler->current_process != PROCESS_NONE) {
-        if (!cmd_terminate(file_handler->current_process)) {
-            LOGW("Could not terminate install process");
+        if (!process_terminate(file_handler->current_process)) {
+            LOGW("Could not terminate push/install process");
         }
-        cmd_simple_wait(file_handler->current_process, NULL);
-        file_handler->current_process = PROCESS_NONE;
     }
-    mutex_unlock(file_handler->mutex);
+    sc_mutex_unlock(&file_handler->mutex);
 }
 
 void
 file_handler_join(struct file_handler *file_handler) {
-    SDL_WaitThread(file_handler->thread, NULL);
+    sc_thread_join(&file_handler->thread, NULL);
 }

app/src/file_handler.h

@@ -1,13 +1,13 @@
 #ifndef FILE_HANDLER_H
 #define FILE_HANDLER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
 
-#include "config.h"
-#include "command.h"
+#include <stdbool.h>
+
+#include "adb.h"
 #include "util/cbuf.h"
+#include "util/thread.h"
 
 typedef enum {
     ACTION_INSTALL_APK,
@@ -24,9 +24,9 @@ struct file_handler_request_queue CBUF(struct file_handler_request, 16);
 struct file_handler {
     char *serial;
     const char *push_target;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *event_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond event_cond;
     bool stopped;
     bool initialized;
     process_t current_process;
@@ -49,7 +49,7 @@ file_handler_stop(struct file_handler *file_handler);
 void
 file_handler_join(struct file_handler *file_handler);
 
-// take ownership of file, and will SDL_free() it
+// take ownership of file, and will free() it
 bool
 file_handler_request(struct file_handler *file_handler,
                      file_handler_action_t action,

app/src/fps_counter.c

@@ -3,26 +3,24 @@
 #include <assert.h>
 #include <SDL2/SDL_timer.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 #define FPS_COUNTER_INTERVAL_MS 1000
 
 bool
 fps_counter_init(struct fps_counter *counter) {
-    counter->mutex = SDL_CreateMutex();
-    if (!counter->mutex) {
+    bool ok = sc_mutex_init(&counter->mutex);
+    if (!ok) {
         return false;
     }
 
-    counter->state_cond = SDL_CreateCond();
-    if (!counter->state_cond) {
-        SDL_DestroyMutex(counter->mutex);
+    ok = sc_cond_init(&counter->state_cond);
+    if (!ok) {
+        sc_mutex_destroy(&counter->mutex);
         return false;
     }
 
-    counter->thread = NULL;
+    counter->thread_started = false;
     atomic_init(&counter->started, 0);
     // no need to initialize the other fields, they are unused until started
 
@@ -31,8 +29,8 @@ fps_counter_init(struct fps_counter *counter) {
 
 void
 fps_counter_destroy(struct fps_counter *counter) {
-    SDL_DestroyCond(counter->state_cond);
-    SDL_DestroyMutex(counter->mutex);
+    sc_cond_destroy(&counter->state_cond);
+    sc_mutex_destroy(&counter->mutex);
 }
 
 static inline bool
@@ -78,10 +76,10 @@ static int
 run_fps_counter(void *data) {
     struct fps_counter *counter = data;
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     while (!counter->interrupted) {
         while (!counter->interrupted && !is_started(counter)) {
-            cond_wait(counter->state_cond, counter->mutex);
+            sc_cond_wait(&counter->state_cond, &counter->mutex);
         }
         while (!counter->interrupted && is_started(counter)) {
             uint32_t now = SDL_GetTicks();
@@ -91,32 +89,35 @@ run_fps_counter(void *data) {
             uint32_t remaining = counter->next_timestamp - now;
 
             // ignore the reason (timeout or signaled), we just loop anyway
-            cond_wait_timeout(counter->state_cond, counter->mutex, remaining);
+            sc_cond_timedwait(&counter->state_cond, &counter->mutex, remaining);
         }
     }
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
     return 0;
 }
 
 bool
 fps_counter_start(struct fps_counter *counter) {
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     counter->next_timestamp = SDL_GetTicks() + FPS_COUNTER_INTERVAL_MS;
     counter->nr_rendered = 0;
     counter->nr_skipped = 0;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 
     set_started(counter, true);
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 
-    // counter->thread is always accessed from the same thread, no need to lock
-    if (!counter->thread) {
-        counter->thread =
-            SDL_CreateThread(run_fps_counter, "fps counter", counter);
-        if (!counter->thread) {
+    // counter->thread_started and counter->thread are always accessed from the
+    // same thread, no need to lock
+    if (!counter->thread_started) {
+        bool ok = sc_thread_create(&counter->thread, run_fps_counter,
+                                   "fps counter", counter);
+        if (!ok) {
             LOGE("Could not start FPS counter thread");
             return false;
         }
+
+        counter->thread_started = true;
     }
 
     return true;
@@ -125,7 +126,7 @@ fps_counter_start(struct fps_counter *counter) {
 void
 fps_counter_stop(struct fps_counter *counter) {
     set_started(counter, false);
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 }
 
 bool
@@ -135,21 +136,21 @@ fps_counter_is_started(struct fps_counter *counter) {
 
 void
 fps_counter_interrupt(struct fps_counter *counter) {
-    if (!counter->thread) {
+    if (!counter->thread_started) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     counter->interrupted = true;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
     // wake up blocking wait
-    cond_signal(counter->state_cond);
+    sc_cond_signal(&counter->state_cond);
 }
 
 void
 fps_counter_join(struct fps_counter *counter) {
-    if (counter->thread) {
-        SDL_WaitThread(counter->thread, NULL);
+    if (counter->thread_started) {
+        sc_thread_join(&counter->thread, NULL);
     }
 }
 
@@ -159,11 +160,11 @@ fps_counter_add_rendered_frame(struct fps_counter *counter) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_rendered;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }
 
 void
@@ -172,9 +173,9 @@ fps_counter_add_skipped_frame(struct fps_counter *counter) {
         return;
     }
 
-    mutex_lock(counter->mutex);
+    sc_mutex_lock(&counter->mutex);
     uint32_t now = SDL_GetTicks();
     check_interval_expired(counter, now);
     ++counter->nr_skipped;
-    mutex_unlock(counter->mutex);
+    sc_mutex_unlock(&counter->mutex);
 }

app/src/fps_counter.h

@@ -1,18 +1,20 @@
 #ifndef FPSCOUNTER_H
 #define FPSCOUNTER_H
 
+#include "common.h"
+
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
+#include "util/thread.h"
 
 struct fps_counter {
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *state_cond;
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond state_cond;
+
+    bool thread_started;
 
     // atomic so that we can check without locking the mutex
     // if the FPS counter is disabled, we don't want to lock unnecessarily

app/src/input_manager.c

@@ -3,9 +3,7 @@
 #include <assert.h>
 #include <SDL2/SDL_keycode.h>
 
-#include "config.h"
 #include "event_converter.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 static const int ACTION_DOWN = 1;
@@ -60,6 +58,8 @@ input_manager_init(struct input_manager *im,
     im->control = options->control;
     im->forward_key_repeat = options->forward_key_repeat;
     im->prefer_text = options->prefer_text;
+    im->forward_all_clicks = options->forward_all_clicks;
+    im->legacy_paste = options->legacy_paste;
 
     const struct sc_shortcut_mods *shortcut_mods = &options->shortcut_mods;
     assert(shortcut_mods->count);
@@ -70,6 +70,12 @@ input_manager_init(struct input_manager *im,
         im->sdl_shortcut_mods.data[i] = sdl_mod;
     }
     im->sdl_shortcut_mods.count = shortcut_mods->count;
+
+    im->vfinger_down = false;
+
+    im->last_keycode = SDLK_UNKNOWN;
+    im->last_mod = 0;
+    im->key_repeat = 0;
 }
 
 static void
@@ -80,6 +86,7 @@ send_keycode(struct controller *controller, enum android_keycode keycode,
     msg.type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
     msg.inject_keycode.keycode = keycode;
     msg.inject_keycode.metastate = 0;
+    msg.inject_keycode.repeat = 0;
 
     if (actions & ACTION_DOWN) {
         msg.inject_keycode.action = AKEY_EVENT_ACTION_DOWN;
@@ -143,13 +150,25 @@ action_cut(struct controller *controller, int actions) {
 }
 
 // turn the screen on if it was off, press BACK otherwise
+// If the screen is off, it is turned on only on ACTION_DOWN
 static void
-press_back_or_turn_screen_on(struct controller *controller) {
+press_back_or_turn_screen_on(struct controller *controller, int actions) {
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
 
-    if (!controller_push_msg(controller, &msg)) {
-        LOGW("Could not request 'press back or turn screen on'");
+    if (actions & ACTION_DOWN) {
+        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_DOWN;
+        if (!controller_push_msg(controller, &msg)) {
+            LOGW("Could not request 'press back or turn screen on'");
+            return;
+        }
+    }
+
+    if (actions & ACTION_UP) {
+        msg.back_or_screen_on.action = AKEY_EVENT_ACTION_UP;
+        if (!controller_push_msg(controller, &msg)) {
+            LOGW("Could not request 'press back or turn screen on'");
+        }
     }
 }
 
@@ -164,9 +183,19 @@ expand_notification_panel(struct controller *controller) {
 }
 
 static void
-collapse_notification_panel(struct controller *controller) {
+expand_settings_panel(struct controller *controller) {
     struct control_msg msg;
-    msg.type = CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL;
+    msg.type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL;
+
+    if (!controller_push_msg(controller, &msg)) {
+        LOGW("Could not request 'expand settings panel'");
+    }
+}
+
+static void
+collapse_panels(struct controller *controller) {
+    struct control_msg msg;
+    msg.type = CONTROL_MSG_TYPE_COLLAPSE_PANELS;
 
     if (!controller_push_msg(controller, &msg)) {
         LOGW("Could not request 'collapse notification panel'");
@@ -186,13 +215,20 @@ set_device_clipboard(struct controller *controller, bool paste) {
         return;
     }
 
+    char *text_dup = strdup(text);
+    SDL_free(text);
+    if (!text_dup) {
+        LOGW("Could not strdup input text");
+        return;
+    }
+
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
-    msg.set_clipboard.text = text;
+    msg.set_clipboard.text = text_dup;
     msg.set_clipboard.paste = paste;
 
     if (!controller_push_msg(controller, &msg)) {
-        SDL_free(text);
+        free(text_dup);
         LOGW("Could not request 'set device clipboard'");
     }
 }
@@ -238,11 +274,18 @@ clipboard_paste(struct controller *controller) {
         return;
     }
 
+    char *text_dup = strdup(text);
+    SDL_free(text);
+    if (!text_dup) {
+        LOGW("Could not strdup input text");
+        return;
+    }
+
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = text;
+    msg.inject_text.text = text_dup;
     if (!controller_push_msg(controller, &msg)) {
-        SDL_free(text);
+        free(text_dup);
         LOGW("Could not request 'paste clipboard'");
     }
 }
@@ -269,7 +312,7 @@ rotate_client_right(struct screen *screen) {
     screen_set_rotation(screen, new_rotation);
 }
 
-void
+static void
 input_manager_process_text_input(struct input_manager *im,
                                  const SDL_TextInputEvent *event) {
     if (is_shortcut_mod(im, SDL_GetModState())) {
@@ -287,17 +330,47 @@ input_manager_process_text_input(struct input_manager *im,
 
     struct control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
-    msg.inject_text.text = SDL_strdup(event->text);
+    msg.inject_text.text = strdup(event->text);
     if (!msg.inject_text.text) {
         LOGW("Could not strdup input text");
         return;
     }
     if (!controller_push_msg(im->controller, &msg)) {
-        SDL_free(msg.inject_text.text);
+        free(msg.inject_text.text);
         LOGW("Could not request 'inject text'");
     }
 }
 
+static bool
+simulate_virtual_finger(struct input_manager *im,
+                        enum android_motionevent_action action,
+                        struct point point) {
+    bool up = action == AMOTION_EVENT_ACTION_UP;
+
+    struct control_msg msg;
+    msg.type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
+    msg.inject_touch_event.action = action;
+    msg.inject_touch_event.position.screen_size = im->screen->frame_size;
+    msg.inject_touch_event.position.point = point;
+    msg.inject_touch_event.pointer_id = POINTER_ID_VIRTUAL_FINGER;
+    msg.inject_touch_event.pressure = up ? 0.0f : 1.0f;
+    msg.inject_touch_event.buttons = 0;
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject virtual finger event'");
+        return false;
+    }
+
+    return true;
+}
+
+static struct point
+inverse_point(struct point point, struct size size) {
+    point.x = size.width - point.x;
+    point.y = size.height - point.y;
+    return point;
+}
+
 static bool
 convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
                   bool prefer_text, uint32_t repeat) {
@@ -319,22 +392,33 @@ convert_input_key(const SDL_KeyboardEvent *from, struct control_msg *to,
     return true;
 }
 
-void
+static void
 input_manager_process_key(struct input_manager *im,
                           const SDL_KeyboardEvent *event) {
     // control: indicates the state of the command-line option --no-control
     bool control = im->control;
 
-    bool smod = is_shortcut_mod(im, event->keysym.mod);
-
     struct controller *controller = im->controller;
 
     SDL_Keycode keycode = event->keysym.sym;
+    uint16_t mod = event->keysym.mod;
     bool down = event->type == SDL_KEYDOWN;
     bool ctrl = event->keysym.mod & KMOD_CTRL;
     bool shift = event->keysym.mod & KMOD_SHIFT;
     bool repeat = event->repeat;
 
+    bool smod = is_shortcut_mod(im, mod);
+
+    if (down && !repeat) {
+        if (keycode == im->last_keycode && mod == im->last_mod) {
+            ++im->key_repeat;
+        } else {
+            im->key_repeat = 0;
+            im->last_keycode = keycode;
+            im->last_mod = mod;
+        }
+    }
+
     // The shortcut modifier is pressed
     if (smod) {
         int action = down ? ACTION_DOWN : ACTION_UP;
@@ -407,7 +491,7 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_v:
                 if (control && !repeat && down) {
-                    if (shift) {
+                    if (shift || im->legacy_paste) {
                         // inject the text as input events
                         clipboard_paste(controller);
                     } else {
@@ -433,17 +517,17 @@ input_manager_process_key(struct input_manager *im,
                 return;
             case SDLK_i:
                 if (!shift && !repeat && down) {
-                    struct fps_counter *fps_counter =
-                        im->video_buffer->fps_counter;
-                    switch_fps_counter_state(fps_counter);
+                    switch_fps_counter_state(im->fps_counter);
                 }
                 return;
             case SDLK_n:
                 if (control && !repeat && down) {
                     if (shift) {
-                        collapse_notification_panel(controller);
-                    } else {
+                        collapse_panels(controller);
+                    } else if (im->key_repeat == 0) {
                         expand_notification_panel(controller);
+                    } else {
+                        expand_settings_panel(controller);
                     }
                 }
                 return;
@@ -471,6 +555,11 @@ input_manager_process_key(struct input_manager *im,
     }
 
     if (ctrl && !shift && keycode == SDLK_v && down && !repeat) {
+        if (im->legacy_paste) {
+            // inject the text as input events
+            clipboard_paste(controller);
+            return;
+        }
         // Synchronize the computer clipboard to the device clipboard before
         // sending Ctrl+v, to allow seamless copy-paste.
         set_device_clipboard(controller, false);
@@ -499,7 +588,7 @@ convert_mouse_motion(const SDL_MouseMotionEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_motion(struct input_manager *im,
                                    const SDL_MouseMotionEvent *event) {
     if (!event->state) {
@@ -511,10 +600,18 @@ input_manager_process_mouse_motion(struct input_manager *im,
         return;
     }
     struct control_msg msg;
-    if (convert_mouse_motion(event, im->screen, &msg)) {
-        if (!controller_push_msg(im->controller, &msg)) {
-            LOGW("Could not request 'inject mouse motion event'");
-        }
+    if (!convert_mouse_motion(event, im->screen, &msg)) {
+        return;
+    }
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject mouse motion event'");
+    }
+
+    if (im->vfinger_down) {
+        struct point mouse = msg.inject_touch_event.position.point;
+        struct point vfinger = inverse_point(mouse, im->screen->frame_size);
+        simulate_virtual_finger(im, AMOTION_EVENT_ACTION_MOVE, vfinger);
     }
 }
 
@@ -545,7 +642,7 @@ convert_touch(const SDL_TouchFingerEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_touch(struct input_manager *im,
                             const SDL_TouchFingerEvent *event) {
     struct control_msg msg;
@@ -577,7 +674,7 @@ convert_mouse_button(const SDL_MouseButtonEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_button(struct input_manager *im,
                                    const SDL_MouseButtonEvent *event) {
     bool control = im->control;
@@ -586,13 +683,29 @@ input_manager_process_mouse_button(struct input_manager *im,
         // simulated from touch events, so it's a duplicate
         return;
     }
-    if (event->type == SDL_MOUSEBUTTONDOWN) {
+
+    bool down = event->type == SDL_MOUSEBUTTONDOWN;
+    if (!im->forward_all_clicks) {
+        int action = down ? ACTION_DOWN : ACTION_UP;
+
+        if (control && event->button == SDL_BUTTON_X1) {
+            action_app_switch(im->controller, action);
+            return;
+        }
+        if (control && event->button == SDL_BUTTON_X2 && down) {
+            if (event->clicks < 2) {
+                expand_notification_panel(im->controller);
+            } else {
+                expand_settings_panel(im->controller);
+            }
+            return;
+        }
         if (control && event->button == SDL_BUTTON_RIGHT) {
-            press_back_or_turn_screen_on(im->controller);
+            press_back_or_turn_screen_on(im->controller, action);
             return;
         }
         if (control && event->button == SDL_BUTTON_MIDDLE) {
-            action_home(im->controller, ACTION_DOWN | ACTION_UP);
+            action_home(im->controller, action);
             return;
         }
 
@@ -605,7 +718,9 @@ input_manager_process_mouse_button(struct input_manager *im,
             bool outside = x < r->x || x >= r->x + r->w
                         || y < r->y || y >= r->y + r->h;
             if (outside) {
-                screen_resize_to_fit(im->screen);
+                if (down) {
+                    screen_resize_to_fit(im->screen);
+                }
                 return;
             }
         }
@@ -617,10 +732,36 @@ input_manager_process_mouse_button(struct input_manager *im,
     }
 
     struct control_msg msg;
-    if (convert_mouse_button(event, im->screen, &msg)) {
-        if (!controller_push_msg(im->controller, &msg)) {
-            LOGW("Could not request 'inject mouse button event'");
+    if (!convert_mouse_button(event, im->screen, &msg)) {
+        return;
+    }
+
+    if (!controller_push_msg(im->controller, &msg)) {
+        LOGW("Could not request 'inject mouse button event'");
+        return;
+    }
+
+    // Pinch-to-zoom simulation.
+    //
+    // If Ctrl is hold when the left-click button is pressed, then
+    // pinch-to-zoom mode is enabled: on every mouse event until the left-click
+    // button is released, an additional "virtual finger" event is generated,
+    // having a position inverted through the center of the screen.
+    //
+    // In other words, the center of the rotation/scaling is the center of the
+    // screen.
+#define CTRL_PRESSED (SDL_GetModState() & (KMOD_LCTRL | KMOD_RCTRL))
+    if ((down && !im->vfinger_down && CTRL_PRESSED)
+            || (!down && im->vfinger_down)) {
+        struct point mouse = msg.inject_touch_event.position.point;
+        struct point vfinger = inverse_point(mouse, im->screen->frame_size);
+        enum android_motionevent_action action = down
+                                               ? AMOTION_EVENT_ACTION_DOWN
+                                               : AMOTION_EVENT_ACTION_UP;
+        if (!simulate_virtual_finger(im, action, vfinger)) {
+            return;
         }
+        im->vfinger_down = down;
     }
 }
 
@@ -648,7 +789,7 @@ convert_mouse_wheel(const SDL_MouseWheelEvent *from, struct screen *screen,
     return true;
 }
 
-void
+static void
 input_manager_process_mouse_wheel(struct input_manager *im,
                                   const SDL_MouseWheelEvent *event) {
     struct control_msg msg;
@@ -658,3 +799,46 @@ input_manager_process_mouse_wheel(struct input_manager *im,
         }
     }
 }
+
+bool
+input_manager_handle_event(struct input_manager *im, SDL_Event *event) {
+    switch (event->type) {
+        case SDL_TEXTINPUT:
+            if (!im->control) {
+                return true;
+            }
+            input_manager_process_text_input(im, &event->text);
+            return true;
+        case SDL_KEYDOWN:
+        case SDL_KEYUP:
+            // some key events do not interact with the device, so process the
+            // event even if control is disabled
+            input_manager_process_key(im, &event->key);
+            return true;
+        case SDL_MOUSEMOTION:
+            if (!im->control) {
+                break;
+            }
+            input_manager_process_mouse_motion(im, &event->motion);
+            return true;
+        case SDL_MOUSEWHEEL:
+            if (!im->control) {
+                break;
+            }
+            input_manager_process_mouse_wheel(im, &event->wheel);
+            return true;
+        case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
+            // some mouse events do not interact with the device, so process
+            // the event even if control is disabled
+            input_manager_process_mouse_button(im, &event->button);
+            return true;
+        case SDL_FINGERMOTION:
+        case SDL_FINGERDOWN:
+        case SDL_FINGERUP:
+            input_manager_process_touch(im, &event->tfinger);
+            return true;
+    }
+
+    return false;
+}

app/src/input_manager.h

@@ -1,21 +1,20 @@
 #ifndef INPUTMANAGER_H
 #define INPUTMANAGER_H
 
+#include "common.h"
+
 #include <stdbool.h>
 
 #include <SDL2/SDL.h>
 
-#include "config.h"
-#include "common.h"
 #include "controller.h"
 #include "fps_counter.h"
 #include "scrcpy.h"
 #include "screen.h"
-#include "video_buffer.h"
 
 struct input_manager {
     struct controller *controller;
-    struct video_buffer *video_buffer;
+    struct fps_counter *fps_counter;
     struct screen *screen;
 
     // SDL reports repeated events as a boolean, but Android expects the actual
@@ -25,39 +24,29 @@ struct input_manager {
     bool control;
     bool forward_key_repeat;
     bool prefer_text;
+    bool forward_all_clicks;
+    bool legacy_paste;
 
     struct {
         unsigned data[SC_MAX_SHORTCUT_MODS];
         unsigned count;
     } sdl_shortcut_mods;
+
+    bool vfinger_down;
+
+    // Tracks the number of identical consecutive shortcut key down events.
+    // Not to be confused with event->repeat, which counts the number of
+    // system-generated repeated key presses.
+    unsigned key_repeat;
+    SDL_Keycode last_keycode;
+    uint16_t last_mod;
 };
 
 void
 input_manager_init(struct input_manager *im,
                    const struct scrcpy_options *options);
 
-void
-input_manager_process_text_input(struct input_manager *im,
-                                 const SDL_TextInputEvent *event);
-
-void
-input_manager_process_key(struct input_manager *im,
-                          const SDL_KeyboardEvent *event);
-
-void
-input_manager_process_mouse_motion(struct input_manager *im,
-                                   const SDL_MouseMotionEvent *event);
-
-void
-input_manager_process_touch(struct input_manager *im,
-                            const SDL_TouchFingerEvent *event);
-
-void
-input_manager_process_mouse_button(struct input_manager *im,
-                                   const SDL_MouseButtonEvent *event);
-
-void
-input_manager_process_mouse_wheel(struct input_manager *im,
-                                  const SDL_MouseWheelEvent *event);
+bool
+input_manager_handle_event(struct input_manager *im, SDL_Event *event);
 
 #endif

app/src/main.c

@@ -1,15 +1,18 @@
 #include "scrcpy.h"
 
+#include "common.h"
+
 #include <assert.h>
 #include <stdbool.h>
 #include <unistd.h>
 #include <libavformat/avformat.h>
+#ifdef HAVE_V4L2
+# include <libavdevice/avdevice.h>
+#endif
 #define SDL_MAIN_HANDLED // avoid link error on Linux Windows Subsystem
 #include <SDL2/SDL.h>
 
-#include "config.h"
 #include "cli.h"
-#include "compat.h"
 #include "util/log.h"
 
 static void
@@ -28,6 +31,11 @@ print_version(void) {
     fprintf(stderr, " - libavutil %d.%d.%d\n", LIBAVUTIL_VERSION_MAJOR,
                                                LIBAVUTIL_VERSION_MINOR,
                                                LIBAVUTIL_VERSION_MICRO);
+#ifdef HAVE_V4L2
+    fprintf(stderr, " - libavdevice %d.%d.%d\n", LIBAVDEVICE_VERSION_MAJOR,
+                                                 LIBAVDEVICE_VERSION_MINOR,
+                                                 LIBAVDEVICE_VERSION_MICRO);
+#endif
 }
 
 static SDL_LogPriority
@@ -90,6 +98,12 @@ main(int argc, char *argv[]) {
     av_register_all();
 #endif
 
+#ifdef HAVE_V4L2
+    if (args.opts.v4l2_device) {
+        avdevice_register_all();
+    }
+#endif
+
     if (avformat_network_init()) {
         return 1;
     }
@@ -98,11 +112,5 @@ main(int argc, char *argv[]) {
 
     avformat_network_deinit(); // ignore failure
 
-#if defined (__WINDOWS__) && ! defined (WINDOWS_NOCONSOLE)
-    if (res != 0) {
-        fprintf(stderr, "Press any key to continue...\n");
-        getchar();
-    }
-#endif
     return res;
 }

app/src/opengl.h

@@ -1,11 +1,11 @@
 #ifndef SC_OPENGL_H
 #define SC_OPENGL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL_opengl.h>
 
-#include "config.h"
-
 struct sc_opengl {
     const char *version;
     bool is_opengles;

app/src/receiver.c

@@ -3,14 +3,13 @@
 #include <assert.h>
 #include <SDL2/SDL_clipboard.h>
 
-#include "config.h"
 #include "device_msg.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
 receiver_init(struct receiver *receiver, socket_t control_socket) {
-    if (!(receiver->mutex = SDL_CreateMutex())) {
+    bool ok = sc_mutex_init(&receiver->mutex);
+    if (!ok) {
         return false;
     }
     receiver->control_socket = control_socket;
@@ -19,7 +18,7 @@ receiver_init(struct receiver *receiver, socket_t control_socket) {
 
 void
 receiver_destroy(struct receiver *receiver) {
-    SDL_DestroyMutex(receiver->mutex);
+    sc_mutex_destroy(&receiver->mutex);
 }
 
 static void
@@ -102,8 +101,9 @@ bool
 receiver_start(struct receiver *receiver) {
     LOGD("Starting receiver thread");
 
-    receiver->thread = SDL_CreateThread(run_receiver, "receiver", receiver);
-    if (!receiver->thread) {
+    bool ok = sc_thread_create(&receiver->thread, run_receiver, "receiver",
+                               receiver);
+    if (!ok) {
         LOGC("Could not start receiver thread");
         return false;
     }
@@ -113,5 +113,5 @@ receiver_start(struct receiver *receiver) {
 
 void
 receiver_join(struct receiver *receiver) {
-    SDL_WaitThread(receiver->thread, NULL);
+    sc_thread_join(&receiver->thread, NULL);
 }

app/src/receiver.h

@@ -1,19 +1,19 @@
 #ifndef RECEIVER_H
 #define RECEIVER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "util/net.h"
+#include "util/thread.h"
 
 // receive events from the device
 // managed by the controller
 struct receiver {
     socket_t control_socket;
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
+    sc_thread thread;
+    sc_mutex mutex;
 };
 
 bool

app/src/recorder.c

@@ -3,10 +3,11 @@
 #include <assert.h>
 #include <libavutil/time.h>
 
-#include "config.h"
-#include "compat.h"
-#include "util/lock.h"
 #include "util/log.h"
+#include "util/str_util.h"
+
+/** Downcast packet_sink to recorder */
+#define DOWNCAST(SINK) container_of(SINK, struct recorder, packet_sink)
 
 static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
 
@@ -22,14 +23,14 @@ find_muxer(const char *name) {
 #else
         oformat = av_oformat_next(oformat);
 #endif
-        // until null or with name "mp4"
-    } while (oformat && strcmp(oformat->name, name));
+        // until null or containing the requested name
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
     return oformat;
 }
 
 static struct record_packet *
 record_packet_new(const AVPacket *packet) {
-    struct record_packet *rec = SDL_malloc(sizeof(*rec));
+    struct record_packet *rec = malloc(sizeof(*rec));
     if (!rec) {
         return NULL;
     }
@@ -39,7 +40,7 @@ record_packet_new(const AVPacket *packet) {
     av_init_packet(&rec->packet);
 
     if (av_packet_ref(&rec->packet, packet)) {
-        SDL_free(rec);
+        free(rec);
         return NULL;
     }
     return rec;
@@ -48,7 +49,7 @@ record_packet_new(const AVPacket *packet) {
 static void
 record_packet_delete(struct record_packet *rec) {
     av_packet_unref(&rec->packet);
-    SDL_free(rec);
+    free(rec);
 }
 
 static void
@@ -60,50 +61,6 @@ recorder_queue_clear(struct recorder_queue *queue) {
     }
 }
 
-bool
-recorder_init(struct recorder *recorder,
-              const char *filename,
-              enum sc_record_format format,
-              struct size declared_frame_size) {
-    recorder->filename = SDL_strdup(filename);
-    if (!recorder->filename) {
-        LOGE("Could not strdup filename");
-        return false;
-    }
-
-    recorder->mutex = SDL_CreateMutex();
-    if (!recorder->mutex) {
-        LOGC("Could not create mutex");
-        SDL_free(recorder->filename);
-        return false;
-    }
-
-    recorder->queue_cond = SDL_CreateCond();
-    if (!recorder->queue_cond) {
-        LOGC("Could not create cond");
-        SDL_DestroyMutex(recorder->mutex);
-        SDL_free(recorder->filename);
-        return false;
-    }
-
-    queue_init(&recorder->queue);
-    recorder->stopped = false;
-    recorder->failed = false;
-    recorder->format = format;
-    recorder->declared_frame_size = declared_frame_size;
-    recorder->header_written = false;
-    recorder->previous = NULL;
-
-    return true;
-}
-
-void
-recorder_destroy(struct recorder *recorder) {
-    SDL_DestroyCond(recorder->queue_cond);
-    SDL_DestroyMutex(recorder->mutex);
-    SDL_free(recorder->filename);
-}
-
 static const char *
 recorder_get_format_name(enum sc_record_format format) {
     switch (format) {
@@ -113,88 +70,6 @@ recorder_get_format_name(enum sc_record_format format) {
     }
 }
 
-bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
-    const char *format_name = recorder_get_format_name(recorder->format);
-    assert(format_name);
-    const AVOutputFormat *format = find_muxer(format_name);
-    if (!format) {
-        LOGE("Could not find muxer");
-        return false;
-    }
-
-    recorder->ctx = avformat_alloc_context();
-    if (!recorder->ctx) {
-        LOGE("Could not allocate output context");
-        return false;
-    }
-
-    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
-    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
-    // still expects a pointer-to-non-const (it has not be updated accordingly)
-    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
-    recorder->ctx->oformat = (AVOutputFormat *) format;
-
-    av_dict_set(&recorder->ctx->metadata, "comment",
-                "Recorded by scrcpy " SCRCPY_VERSION, 0);
-
-    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
-    if (!ostream) {
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
-#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
-    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
-    ostream->codecpar->codec_id = input_codec->id;
-    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
-    ostream->codecpar->width = recorder->declared_frame_size.width;
-    ostream->codecpar->height = recorder->declared_frame_size.height;
-#else
-    ostream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    ostream->codec->codec_id = input_codec->id;
-    ostream->codec->pix_fmt = AV_PIX_FMT_YUV420P;
-    ostream->codec->width = recorder->declared_frame_size.width;
-    ostream->codec->height = recorder->declared_frame_size.height;
-#endif
-
-    int ret = avio_open(&recorder->ctx->pb, recorder->filename,
-                        AVIO_FLAG_WRITE);
-    if (ret < 0) {
-        LOGE("Failed to open output file: %s", recorder->filename);
-        // ostream will be cleaned up during context cleaning
-        avformat_free_context(recorder->ctx);
-        return false;
-    }
-
-    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
-
-    return true;
-}
-
-void
-recorder_close(struct recorder *recorder) {
-    if (recorder->header_written) {
-        int ret = av_write_trailer(recorder->ctx);
-        if (ret < 0) {
-            LOGE("Failed to write trailer to %s", recorder->filename);
-            recorder->failed = true;
-        }
-    } else {
-        // the recorded file is empty
-        recorder->failed = true;
-    }
-    avio_close(recorder->ctx->pb);
-    avformat_free_context(recorder->ctx);
-
-    if (recorder->failed) {
-        LOGE("Recording failed to %s", recorder->filename);
-    } else {
-        const char *format_name = recorder_get_format_name(recorder->format);
-        LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
-    }
-}
-
 static bool
 recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
     AVStream *ostream = recorder->ctx->streams[0];
@@ -208,13 +83,8 @@ recorder_write_header(struct recorder *recorder, const AVPacket *packet) {
     // copy the first packet to the extra data
     memcpy(extradata, packet->data, packet->size);
 
-#ifdef SCRCPY_LAVF_HAS_NEW_CODEC_PARAMS_API
     ostream->codecpar->extradata = extradata;
     ostream->codecpar->extradata_size = packet->size;
-#else
-    ostream->codec->extradata = extradata;
-    ostream->codec->extradata_size = packet->size;
-#endif
 
     int ret = avformat_write_header(recorder->ctx, NULL);
     if (ret < 0) {
@@ -231,7 +101,7 @@ recorder_rescale_packet(struct recorder *recorder, AVPacket *packet) {
     av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
 }
 
-bool
+static bool
 recorder_write(struct recorder *recorder, AVPacket *packet) {
     if (!recorder->header_written) {
         if (packet->pts != AV_NOPTS_VALUE) {
@@ -260,17 +130,17 @@ run_recorder(void *data) {
     struct recorder *recorder = data;
 
     for (;;) {
-        mutex_lock(recorder->mutex);
+        sc_mutex_lock(&recorder->mutex);
 
         while (!recorder->stopped && queue_is_empty(&recorder->queue)) {
-            cond_wait(recorder->queue_cond, recorder->mutex);
+            sc_cond_wait(&recorder->queue_cond, &recorder->mutex);
         }
 
         // if stopped is set, continue to process the remaining events (to
         // finish the recording) before actually stopping
 
         if (recorder->stopped && queue_is_empty(&recorder->queue)) {
-            mutex_unlock(recorder->mutex);
+            sc_mutex_unlock(&recorder->mutex);
             struct record_packet *last = recorder->previous;
             if (last) {
                 // assign an arbitrary duration to the last packet
@@ -290,7 +160,7 @@ run_recorder(void *data) {
         struct record_packet *rec;
         queue_take(&recorder->queue, next, &rec);
 
-        mutex_unlock(recorder->mutex);
+        sc_mutex_unlock(&recorder->mutex);
 
         // recorder->previous is only written from this thread, no need to lock
         struct record_packet *previous = recorder->previous;
@@ -313,14 +183,33 @@ run_recorder(void *data) {
         if (!ok) {
             LOGE("Could not record packet");
 
-            mutex_lock(recorder->mutex);
+            sc_mutex_lock(&recorder->mutex);
             recorder->failed = true;
             // discard pending packets
             recorder_queue_clear(&recorder->queue);
-            mutex_unlock(recorder->mutex);
+            sc_mutex_unlock(&recorder->mutex);
             break;
         }
+    }
 
+    if (!recorder->failed) {
+        if (recorder->header_written) {
+            int ret = av_write_trailer(recorder->ctx);
+            if (ret < 0) {
+                LOGE("Failed to write trailer to %s", recorder->filename);
+                recorder->failed = true;
+            }
+        } else {
+            // the recorded file is empty
+            recorder->failed = true;
+        }
+    }
+
+    if (recorder->failed) {
+        LOGE("Recording failed to %s", recorder->filename);
+    } else {
+        const char *format_name = recorder_get_format_name(recorder->format);
+        LOGI("Recording complete to %s file: %s", format_name, recorder->filename);
     }
 
     LOGD("Recorder thread ended");
@@ -328,51 +217,176 @@ run_recorder(void *data) {
     return 0;
 }
 
-bool
-recorder_start(struct recorder *recorder) {
-    LOGD("Starting recorder thread");
-
-    recorder->thread = SDL_CreateThread(run_recorder, "recorder", recorder);
-    if (!recorder->thread) {
-        LOGC("Could not start recorder thread");
+static bool
+recorder_open(struct recorder *recorder, const AVCodec *input_codec) {
+    bool ok = sc_mutex_init(&recorder->mutex);
+    if (!ok) {
+        LOGC("Could not create mutex");
         return false;
     }
 
+    ok = sc_cond_init(&recorder->queue_cond);
+    if (!ok) {
+        LOGC("Could not create cond");
+        goto error_mutex_destroy;
+    }
+
+    queue_init(&recorder->queue);
+    recorder->stopped = false;
+    recorder->failed = false;
+    recorder->header_written = false;
+    recorder->previous = NULL;
+
+    const char *format_name = recorder_get_format_name(recorder->format);
+    assert(format_name);
+    const AVOutputFormat *format = find_muxer(format_name);
+    if (!format) {
+        LOGE("Could not find muxer");
+        goto error_cond_destroy;
+    }
+
+    recorder->ctx = avformat_alloc_context();
+    if (!recorder->ctx) {
+        LOGE("Could not allocate output context");
+        goto error_cond_destroy;
+    }
+
+    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
+    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
+    // still expects a pointer-to-non-const (it has not be updated accordingly)
+    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
+    recorder->ctx->oformat = (AVOutputFormat *) format;
+
+    av_dict_set(&recorder->ctx->metadata, "comment",
+                "Recorded by scrcpy " SCRCPY_VERSION, 0);
+
+    AVStream *ostream = avformat_new_stream(recorder->ctx, input_codec);
+    if (!ostream) {
+        goto error_avformat_free_context;
+    }
+
+    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codecpar->codec_id = input_codec->id;
+    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
+    ostream->codecpar->width = recorder->declared_frame_size.width;
+    ostream->codecpar->height = recorder->declared_frame_size.height;
+
+    int ret = avio_open(&recorder->ctx->pb, recorder->filename,
+                        AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        LOGE("Failed to open output file: %s", recorder->filename);
+        // ostream will be cleaned up during context cleaning
+        goto error_avformat_free_context;
+    }
+
+    LOGD("Starting recorder thread");
+    ok = sc_thread_create(&recorder->thread, run_recorder, "recorder",
+                               recorder);
+    if (!ok) {
+        LOGC("Could not start recorder thread");
+        goto error_avio_close;
+    }
+
+    LOGI("Recording started to %s file: %s", format_name, recorder->filename);
+
     return true;
+
+error_avio_close:
+    avio_close(recorder->ctx->pb);
+error_avformat_free_context:
+    avformat_free_context(recorder->ctx);
+error_cond_destroy:
+    sc_cond_destroy(&recorder->queue_cond);
+error_mutex_destroy:
+    sc_mutex_destroy(&recorder->mutex);
+
+    return false;
 }
 
-void
-recorder_stop(struct recorder *recorder) {
-    mutex_lock(recorder->mutex);
+static void
+recorder_close(struct recorder *recorder) {
+    sc_mutex_lock(&recorder->mutex);
     recorder->stopped = true;
-    cond_signal(recorder->queue_cond);
-    mutex_unlock(recorder->mutex);
+    sc_cond_signal(&recorder->queue_cond);
+    sc_mutex_unlock(&recorder->mutex);
+
+    sc_thread_join(&recorder->thread, NULL);
+
+    avio_close(recorder->ctx->pb);
+    avformat_free_context(recorder->ctx);
+    sc_cond_destroy(&recorder->queue_cond);
+    sc_mutex_destroy(&recorder->mutex);
 }
 
-void
-recorder_join(struct recorder *recorder) {
-    SDL_WaitThread(recorder->thread, NULL);
-}
-
-bool
+static bool
 recorder_push(struct recorder *recorder, const AVPacket *packet) {
-    mutex_lock(recorder->mutex);
+    sc_mutex_lock(&recorder->mutex);
     assert(!recorder->stopped);
 
     if (recorder->failed) {
         // reject any new packet (this will stop the stream)
+        sc_mutex_unlock(&recorder->mutex);
         return false;
     }
 
     struct record_packet *rec = record_packet_new(packet);
     if (!rec) {
         LOGC("Could not allocate record packet");
+        sc_mutex_unlock(&recorder->mutex);
         return false;
     }
 
     queue_push(&recorder->queue, next, rec);
-    cond_signal(recorder->queue_cond);
+    sc_cond_signal(&recorder->queue_cond);
 
-    mutex_unlock(recorder->mutex);
+    sc_mutex_unlock(&recorder->mutex);
     return true;
 }
+
+static bool
+recorder_packet_sink_open(struct sc_packet_sink *sink, const AVCodec *codec) {
+    struct recorder *recorder = DOWNCAST(sink);
+    return recorder_open(recorder, codec);
+}
+
+static void
+recorder_packet_sink_close(struct sc_packet_sink *sink) {
+    struct recorder *recorder = DOWNCAST(sink);
+    recorder_close(recorder);
+}
+
+static bool
+recorder_packet_sink_push(struct sc_packet_sink *sink, const AVPacket *packet) {
+    struct recorder *recorder = DOWNCAST(sink);
+    return recorder_push(recorder, packet);
+}
+
+bool
+recorder_init(struct recorder *recorder,
+              const char *filename,
+              enum sc_record_format format,
+              struct size declared_frame_size) {
+    recorder->filename = strdup(filename);
+    if (!recorder->filename) {
+        LOGE("Could not strdup filename");
+        return false;
+    }
+
+    recorder->format = format;
+    recorder->declared_frame_size = declared_frame_size;
+
+    static const struct sc_packet_sink_ops ops = {
+        .open = recorder_packet_sink_open,
+        .close = recorder_packet_sink_close,
+        .push = recorder_packet_sink_push,
+    };
+
+    recorder->packet_sink.ops = &ops;
+
+    return true;
+}
+
+void
+recorder_destroy(struct recorder *recorder) {
+    free(recorder->filename);
+}

app/src/recorder.h

@@ -1,15 +1,16 @@
 #ifndef RECORDER_H
 #define RECORDER_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <libavformat/avformat.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
-#include "common.h"
+#include "coords.h"
 #include "scrcpy.h"
+#include "trait/packet_sink.h"
 #include "util/queue.h"
+#include "util/thread.h"
 
 struct record_packet {
     AVPacket packet;
@@ -19,16 +20,18 @@ struct record_packet {
 struct recorder_queue QUEUE(struct record_packet);
 
 struct recorder {
+    struct sc_packet_sink packet_sink; // packet sink trait
+
     char *filename;
     enum sc_record_format format;
     AVFormatContext *ctx;
     struct size declared_frame_size;
     bool header_written;
 
-    SDL_Thread *thread;
-    SDL_mutex *mutex;
-    SDL_cond *queue_cond;
-    bool stopped; // set on recorder_stop() by the stream reader
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond queue_cond;
+    bool stopped; // set on recorder_close()
     bool failed; // set on packet write failure
     struct recorder_queue queue;
 
@@ -46,22 +49,4 @@ recorder_init(struct recorder *recorder, const char *filename,
 void
 recorder_destroy(struct recorder *recorder);
 
-bool
-recorder_open(struct recorder *recorder, const AVCodec *input_codec);
-
-void
-recorder_close(struct recorder *recorder);
-
-bool
-recorder_start(struct recorder *recorder);
-
-void
-recorder_stop(struct recorder *recorder);
-
-void
-recorder_join(struct recorder *recorder);
-
-bool
-recorder_push(struct recorder *recorder, const AVPacket *packet);
-
 #endif

app/src/scrcpy.c

@@ -13,10 +13,6 @@
 # include <windows.h>
 #endif
 
-#include "config.h"
-#include "command.h"
-#include "common.h"
-#include "compat.h"
 #include "controller.h"
 #include "decoder.h"
 #include "device.h"
@@ -29,24 +25,27 @@
 #include "server.h"
 #include "stream.h"
 #include "tiny_xpm.h"
-#include "video_buffer.h"
-#include "util/lock.h"
 #include "util/log.h"
 #include "util/net.h"
+#ifdef HAVE_V4L2
+# include "v4l2_sink.h"
+#endif
 
-static struct server server = SERVER_INITIALIZER;
-static struct screen screen = SCREEN_INITIALIZER;
+static struct server server;
+static struct screen screen;
 static struct fps_counter fps_counter;
-static struct video_buffer video_buffer;
 static struct stream stream;
 static struct decoder decoder;
 static struct recorder recorder;
+#ifdef HAVE_V4L2
+static struct sc_v4l2_sink v4l2_sink;
+#endif
 static struct controller controller;
 static struct file_handler file_handler;
 
 static struct input_manager input_manager = {
     .controller = &controller,
-    .video_buffer = &video_buffer,
+    .fps_counter = &fps_counter,
     .screen = &screen,
     .repeat = 0,
 
@@ -133,30 +132,6 @@ sdl_init_and_configure(bool display, const char *render_driver,
     return true;
 }
 
-
-#if defined(__APPLE__) || defined(__WINDOWS__)
-# define CONTINUOUS_RESIZING_WORKAROUND
-#endif
-
-#ifdef CONTINUOUS_RESIZING_WORKAROUND
-// On Windows and MacOS, resizing blocks the event loop, so resizing events are
-// not triggered. As a workaround, handle them in an event handler.
-//
-// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
-// <https://stackoverflow.com/a/40693139/1987178>
-static int
-event_watcher(void *data, SDL_Event *event) {
-    (void) data;
-    if (event->type == SDL_WINDOWEVENT
-            && event->window.event == SDL_WINDOWEVENT_RESIZED) {
-        // In practice, it seems to always be called from the same thread in
-        // that specific case. Anyway, it's just a workaround.
-        screen_render(&screen, true);
-    }
-    return 0;
-}
-#endif
-
 static bool
 is_apk(const char *file) {
     const char *ext = strrchr(file, '.');
@@ -178,78 +153,42 @@ handle_event(SDL_Event *event, const struct scrcpy_options *options) {
         case SDL_QUIT:
             LOGD("User requested to quit");
             return EVENT_RESULT_STOPPED_BY_USER;
-        case EVENT_NEW_FRAME:
-            if (!screen.has_frame) {
-                screen.has_frame = true;
-                // this is the very first frame, show the window
-                screen_show_window(&screen);
-            }
-            if (!screen_update_frame(&screen, &video_buffer)) {
-                return EVENT_RESULT_CONTINUE;
-            }
-            break;
-        case SDL_WINDOWEVENT:
-            screen_handle_window_event(&screen, &event->window);
-            break;
-        case SDL_TEXTINPUT:
-            if (!options->control) {
-                break;
-            }
-            input_manager_process_text_input(&input_manager, &event->text);
-            break;
-        case SDL_KEYDOWN:
-        case SDL_KEYUP:
-            // some key events do not interact with the device, so process the
-            // event even if control is disabled
-            input_manager_process_key(&input_manager, &event->key);
-            break;
-        case SDL_MOUSEMOTION:
-            if (!options->control) {
-                break;
-            }
-            input_manager_process_mouse_motion(&input_manager, &event->motion);
-            break;
-        case SDL_MOUSEWHEEL:
-            if (!options->control) {
-                break;
-            }
-            input_manager_process_mouse_wheel(&input_manager, &event->wheel);
-            break;
-        case SDL_MOUSEBUTTONDOWN:
-        case SDL_MOUSEBUTTONUP:
-            // some mouse events do not interact with the device, so process
-            // the event even if control is disabled
-            input_manager_process_mouse_button(&input_manager, &event->button);
-            break;
-        case SDL_FINGERMOTION:
-        case SDL_FINGERDOWN:
-        case SDL_FINGERUP:
-            input_manager_process_touch(&input_manager, &event->tfinger);
-            break;
         case SDL_DROPFILE: {
             if (!options->control) {
                 break;
             }
+            char *file = strdup(event->drop.file);
+            SDL_free(event->drop.file);
+            if (!file) {
+                LOGW("Could not strdup drop filename\n");
+                break;
+            }
+
             file_handler_action_t action;
-            if (is_apk(event->drop.file)) {
+            if (is_apk(file)) {
                 action = ACTION_INSTALL_APK;
             } else {
                 action = ACTION_PUSH_FILE;
             }
-            file_handler_request(&file_handler, action, event->drop.file);
-            break;
+            file_handler_request(&file_handler, action, file);
+            goto end;
         }
     }
+
+    bool consumed = screen_handle_event(&screen, event);
+    if (consumed) {
+        goto end;
+    }
+
+    consumed = input_manager_handle_event(&input_manager, event);
+    (void) consumed;
+
+end:
     return EVENT_RESULT_CONTINUE;
 }
 
 static bool
 event_loop(const struct scrcpy_options *options) {
-#ifdef CONTINUOUS_RESIZING_WORKAROUND
-    if (options->display) {
-        SDL_AddEventWatch(event_watcher, NULL);
-    }
-#endif
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
         enum event_result result = handle_event(&event, options);
@@ -290,7 +229,7 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     if (priority == 0) {
         return;
     }
-    char *local_fmt = SDL_malloc(strlen(fmt) + 10);
+    char *local_fmt = malloc(strlen(fmt) + 10);
     if (!local_fmt) {
         LOGC("Could not allocate string");
         return;
@@ -299,13 +238,28 @@ av_log_callback(void *avcl, int level, const char *fmt, va_list vl) {
     strcpy(local_fmt, "[FFmpeg] ");
     strcpy(local_fmt + 9, fmt);
     SDL_LogMessageV(SDL_LOG_CATEGORY_VIDEO, priority, local_fmt, vl);
-    SDL_free(local_fmt);
+    free(local_fmt);
 }
 
 bool
 scrcpy(const struct scrcpy_options *options) {
+    bool ret = false;
+
+    bool server_started = false;
+    bool fps_counter_initialized = false;
+    bool file_handler_initialized = false;
+    bool recorder_initialized = false;
+#ifdef HAVE_V4L2
+    bool v4l2_sink_initialized = false;
+#endif
+    bool stream_started = false;
+    bool controller_initialized = false;
+    bool controller_started = false;
+    bool screen_initialized = false;
+
     bool record = !!options->record_filename;
     struct server_params params = {
+        .serial = options->serial,
         .log_level = options->log_level,
         .crop = options->crop,
         .port_range = options->port_range,
@@ -318,21 +272,20 @@ scrcpy(const struct scrcpy_options *options) {
         .show_touches = options->show_touches,
         .stay_awake = options->stay_awake,
         .codec_options = options->codec_options,
+        .encoder_name = options->encoder_name,
         .force_adb_forward = options->force_adb_forward,
+        .power_off_on_close = options->power_off_on_close,
     };
-    if (!server_start(&server, options->serial, &params)) {
+
+    if (!server_init(&server, &params)) {
         return false;
     }
 
-    bool ret = false;
+    if (!server_start(&server)) {
+        goto end;
+    }
 
-    bool fps_counter_initialized = false;
-    bool video_buffer_initialized = false;
-    bool file_handler_initialized = false;
-    bool recorder_initialized = false;
-    bool stream_started = false;
-    bool controller_initialized = false;
-    bool controller_started = false;
+    server_started = true;
 
     if (!sdl_init_and_configure(options->display, options->render_driver,
                                 options->disable_screensaver)) {
@@ -353,28 +306,28 @@ scrcpy(const struct scrcpy_options *options) {
         goto end;
     }
 
-    struct decoder *dec = NULL;
     if (options->display) {
         if (!fps_counter_init(&fps_counter)) {
             goto end;
         }
         fps_counter_initialized = true;
 
-        if (!video_buffer_init(&video_buffer, &fps_counter,
-                               options->render_expired_frames)) {
-            goto end;
-        }
-        video_buffer_initialized = true;
-
         if (options->control) {
-            if (!file_handler_init(&file_handler, server.serial,
+            if (!file_handler_init(&file_handler, options->serial,
                                    options->push_target)) {
                 goto end;
             }
             file_handler_initialized = true;
         }
+    }
 
-        decoder_init(&decoder, &video_buffer);
+    struct decoder *dec = NULL;
+    bool needs_decoder = options->display;
+#ifdef HAVE_V4L2
+    needs_decoder |= !!options->v4l2_device;
+#endif
+    if (needs_decoder) {
+        decoder_init(&decoder);
         dec = &decoder;
     }
 
@@ -392,14 +345,15 @@ scrcpy(const struct scrcpy_options *options) {
 
     av_log_set_callback(av_log_callback);
 
-    stream_init(&stream, server.video_socket, dec, rec);
+    stream_init(&stream, server.video_socket);
 
-    // now we consumed the header values, the socket receives the video stream
-    // start the stream
-    if (!stream_start(&stream)) {
-        goto end;
+    if (dec) {
+        stream_add_sink(&stream, &dec->packet_sink);
+    }
+
+    if (rec) {
+        stream_add_sink(&stream, &rec->packet_sink);
     }
-    stream_started = true;
 
     if (options->display) {
         if (options->control) {
@@ -417,14 +371,26 @@ scrcpy(const struct scrcpy_options *options) {
         const char *window_title =
             options->window_title ? options->window_title : device_name;
 
-        if (!screen_init_rendering(&screen, window_title, frame_size,
-                                   options->always_on_top, options->window_x,
-                                   options->window_y, options->window_width,
-                                   options->window_height,
-                                   options->window_borderless,
-                                   options->rotation, options-> mipmaps)) {
+        struct screen_params screen_params = {
+            .window_title = window_title,
+            .frame_size = frame_size,
+            .always_on_top = options->always_on_top,
+            .window_x = options->window_x,
+            .window_y = options->window_y,
+            .window_width = options->window_width,
+            .window_height = options->window_height,
+            .window_borderless = options->window_borderless,
+            .rotation = options->rotation,
+            .mipmaps = options->mipmaps,
+            .fullscreen = options->fullscreen,
+        };
+
+        if (!screen_init(&screen, &fps_counter, &screen_params)) {
             goto end;
         }
+        screen_initialized = true;
+
+        decoder_add_sink(&decoder, &screen.frame_sink);
 
         if (options->turn_screen_off) {
             struct control_msg msg;
@@ -435,25 +401,39 @@ scrcpy(const struct scrcpy_options *options) {
                 LOGW("Could not request 'set screen power mode'");
             }
         }
-
-        if (options->fullscreen) {
-            screen_switch_fullscreen(&screen);
-        }
     }
 
+#ifdef HAVE_V4L2
+    if (options->v4l2_device) {
+        if (!sc_v4l2_sink_init(&v4l2_sink, options->v4l2_device, frame_size)) {
+            goto end;
+        }
+
+        decoder_add_sink(&decoder, &v4l2_sink.frame_sink);
+
+        v4l2_sink_initialized = true;
+    }
+#endif
+
+    // now we consumed the header values, the socket receives the video stream
+    // start the stream
+    if (!stream_start(&stream)) {
+        goto end;
+    }
+    stream_started = true;
+
     input_manager_init(&input_manager, options);
 
     ret = event_loop(options);
     LOGD("quit...");
 
-    screen_destroy(&screen);
+    // Close the window immediately on closing, because screen_destroy() may
+    // only be called once the stream thread is joined (it may take time)
+    screen_hide_window(&screen);
 
 end:
-    // stop stream and controller so that they don't continue once their socket
-    // is shutdown
-    if (stream_started) {
-        stream_stop(&stream);
-    }
+    // The stream is not stopped explicitly, because it will stop by itself on
+    // end-of-stream
     if (controller_started) {
         controller_stop(&controller);
     }
@@ -464,14 +444,29 @@ end:
         fps_counter_interrupt(&fps_counter);
     }
 
-    // shutdown the sockets and kill the server
-    server_stop(&server);
+    if (server_started) {
+        // shutdown the sockets and kill the server
+        server_stop(&server);
+    }
 
     // now that the sockets are shutdown, the stream and controller are
     // interrupted, we can join them
     if (stream_started) {
         stream_join(&stream);
     }
+
+#ifdef HAVE_V4L2
+    if (v4l2_sink_initialized) {
+        sc_v4l2_sink_destroy(&v4l2_sink);
+    }
+#endif
+
+    // Destroy the screen only after the stream is guaranteed to be finished,
+    // because otherwise the screen could receive new frames after destruction
+    if (screen_initialized) {
+        screen_destroy(&screen);
+    }
+
     if (controller_started) {
         controller_join(&controller);
     }
@@ -488,10 +483,6 @@ end:
         file_handler_destroy(&file_handler);
     }
 
-    if (video_buffer_initialized) {
-        video_buffer_destroy(&video_buffer);
-    }
-
     if (fps_counter_initialized) {
         fps_counter_join(&fps_counter);
         fps_counter_destroy(&fps_counter);

app/src/scrcpy.h

@@ -1,12 +1,12 @@
 #ifndef SCRCPY_H
 #define SCRCPY_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>
 
-#include "config.h"
-
 enum sc_log_level {
     SC_LOG_LEVEL_DEBUG,
     SC_LOG_LEVEL_INFO,
@@ -20,6 +20,16 @@ enum sc_record_format {
     SC_RECORD_FORMAT_MKV,
 };
 
+enum sc_lock_video_orientation {
+    SC_LOCK_VIDEO_ORIENTATION_UNLOCKED = -1,
+    // lock the current orientation when scrcpy starts
+    SC_LOCK_VIDEO_ORIENTATION_INITIAL = -2,
+    SC_LOCK_VIDEO_ORIENTATION_0 = 0,
+    SC_LOCK_VIDEO_ORIENTATION_1,
+    SC_LOCK_VIDEO_ORIENTATION_2,
+    SC_LOCK_VIDEO_ORIENTATION_3,
+};
+
 #define SC_MAX_SHORTCUT_MODS 8
 
 enum sc_shortcut_mod {
@@ -51,6 +61,8 @@ struct scrcpy_options {
     const char *push_target;
     const char *render_driver;
     const char *codec_options;
+    const char *encoder_name;
+    const char *v4l2_device;
     enum sc_log_level log_level;
     enum sc_record_format record_format;
     struct sc_port_range port_range;
@@ -58,20 +70,19 @@ struct scrcpy_options {
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
-    int8_t lock_video_orientation;
+    enum sc_lock_video_orientation lock_video_orientation;
     uint8_t rotation;
     int16_t window_x; // SC_WINDOW_POSITION_UNDEFINED for "auto"
     int16_t window_y; // SC_WINDOW_POSITION_UNDEFINED for "auto"
     uint16_t window_width;
     uint16_t window_height;
-    uint16_t display_id;
+    uint32_t display_id;
     bool show_touches;
     bool fullscreen;
     bool always_on_top;
     bool control;
     bool display;
     bool turn_screen_off;
-    bool render_expired_frames;
     bool prefer_text;
     bool window_borderless;
     bool mipmaps;
@@ -79,6 +90,9 @@ struct scrcpy_options {
     bool force_adb_forward;
     bool disable_screensaver;
     bool forward_key_repeat;
+    bool forward_all_clicks;
+    bool legacy_paste;
+    bool power_off_on_close;
 };
 
 #define SCRCPY_OPTIONS_DEFAULT { \
@@ -89,6 +103,8 @@ struct scrcpy_options {
     .push_target = NULL, \
     .render_driver = NULL, \
     .codec_options = NULL, \
+    .encoder_name = NULL, \
+    .v4l2_device = NULL, \
     .log_level = SC_LOG_LEVEL_INFO, \
     .record_format = SC_RECORD_FORMAT_AUTO, \
     .port_range = { \
@@ -99,10 +115,10 @@ struct scrcpy_options {
         .data = {SC_MOD_LALT, SC_MOD_LSUPER}, \
         .count = 2, \
     }, \
-    .max_size = DEFAULT_MAX_SIZE, \
+    .max_size = 0, \
     .bit_rate = DEFAULT_BIT_RATE, \
     .max_fps = 0, \
-    .lock_video_orientation = DEFAULT_LOCK_VIDEO_ORIENTATION, \
+    .lock_video_orientation = SC_LOCK_VIDEO_ORIENTATION_UNLOCKED, \
     .rotation = 0, \
     .window_x = SC_WINDOW_POSITION_UNDEFINED, \
     .window_y = SC_WINDOW_POSITION_UNDEFINED, \
@@ -115,7 +131,6 @@ struct scrcpy_options {
     .control = true, \
     .display = true, \
     .turn_screen_off = false, \
-    .render_expired_frames = false, \
     .prefer_text = false, \
     .window_borderless = false, \
     .mipmaps = true, \
@@ -123,6 +138,9 @@ struct scrcpy_options {
     .force_adb_forward = false, \
     .disable_screensaver = false, \
     .forward_key_repeat = true, \
+    .forward_all_clicks = false, \
+    .legacy_paste = false, \
+    .power_off_on_close = false, \
 }
 
 bool

app/src/screen.c

@@ -4,18 +4,17 @@
 #include <string.h>
 #include <SDL2/SDL.h>
 
-#include "config.h"
-#include "common.h"
-#include "compat.h"
+#include "events.h"
 #include "icon.xpm"
 #include "scrcpy.h"
 #include "tiny_xpm.h"
 #include "video_buffer.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 #define DISPLAY_MARGINS 96
 
+#define DOWNCAST(SINK) container_of(SINK, struct screen, frame_sink)
+
 static inline struct size
 get_rotated_size(struct size size, int rotation) {
     struct size rotated_size;
@@ -194,11 +193,6 @@ screen_update_content_rect(struct screen *screen) {
     }
 }
 
-void
-screen_init(struct screen *screen) {
-    *screen = (struct screen) SCREEN_INITIALIZER;
-}
-
 static inline SDL_Texture *
 create_texture(struct screen *screen) {
     SDL_Renderer *renderer = screen->renderer;
@@ -226,27 +220,110 @@ create_texture(struct screen *screen) {
     return texture;
 }
 
-bool
-screen_init_rendering(struct screen *screen, const char *window_title,
-                      struct size frame_size, bool always_on_top,
-                      int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height, bool window_borderless,
-                      uint8_t rotation, bool mipmaps) {
-    screen->frame_size = frame_size;
-    screen->rotation = rotation;
-    if (rotation) {
-        LOGI("Initial display rotation set to %u", rotation);
+#if defined(__APPLE__) || defined(__WINDOWS__)
+# define CONTINUOUS_RESIZING_WORKAROUND
+#endif
+
+#ifdef CONTINUOUS_RESIZING_WORKAROUND
+// On Windows and MacOS, resizing blocks the event loop, so resizing events are
+// not triggered. As a workaround, handle them in an event handler.
+//
+// <https://bugzilla.libsdl.org/show_bug.cgi?id=2077>
+// <https://stackoverflow.com/a/40693139/1987178>
+static int
+event_watcher(void *data, SDL_Event *event) {
+    struct screen *screen = data;
+    if (event->type == SDL_WINDOWEVENT
+            && event->window.event == SDL_WINDOWEVENT_RESIZED) {
+        // In practice, it seems to always be called from the same thread in
+        // that specific case. Anyway, it's just a workaround.
+        screen_render(screen, true);
     }
-    struct size content_size = get_rotated_size(frame_size, screen->rotation);
+    return 0;
+}
+#endif
+
+static bool
+screen_frame_sink_open(struct sc_frame_sink *sink) {
+    struct screen *screen = DOWNCAST(sink);
+    (void) screen;
+#ifndef NDEBUG
+    screen->open = true;
+#endif
+
+    // nothing to do, the screen is already open on the main thread
+    return true;
+}
+
+static void
+screen_frame_sink_close(struct sc_frame_sink *sink) {
+    struct screen *screen = DOWNCAST(sink);
+    (void) screen;
+#ifndef NDEBUG
+    screen->open = false;
+#endif
+
+    // nothing to do, the screen lifecycle is not managed by the frame producer
+}
+
+static bool
+screen_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
+    struct screen *screen = DOWNCAST(sink);
+
+    bool previous_frame_skipped;
+    bool ok = video_buffer_push(&screen->vb, frame, &previous_frame_skipped);
+    if (!ok) {
+        return false;
+    }
+
+    if (previous_frame_skipped) {
+        fps_counter_add_skipped_frame(screen->fps_counter);
+        // The EVENT_NEW_FRAME triggered for the previous frame will consume
+        // this new frame instead
+    } else {
+        static SDL_Event new_frame_event = {
+            .type = EVENT_NEW_FRAME,
+        };
+
+        // Post the event on the UI thread
+        SDL_PushEvent(&new_frame_event);
+    }
+
+    return true;
+}
+
+bool
+screen_init(struct screen *screen, struct fps_counter *fps_counter,
+            const struct screen_params *params) {
+    screen->fps_counter = fps_counter;
+
+    screen->resize_pending = false;
+    screen->has_frame = false;
+    screen->fullscreen = false;
+    screen->maximized = false;
+
+    bool ok = video_buffer_init(&screen->vb);
+    if (!ok) {
+        LOGE("Could not initialize video buffer");
+        return false;
+    }
+
+    screen->frame_size = params->frame_size;
+    screen->rotation = params->rotation;
+    if (screen->rotation) {
+        LOGI("Initial display rotation set to %u", screen->rotation);
+    }
+    struct size content_size =
+        get_rotated_size(screen->frame_size, screen->rotation);
     screen->content_size = content_size;
 
-    struct size window_size =
-        get_initial_optimal_size(content_size, window_width, window_height);
-    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
-#ifdef HIDPI_SUPPORT
-    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
-#endif
-    if (always_on_top) {
+    struct size window_size = get_initial_optimal_size(content_size,
+                                                       params->window_width,
+                                                       params->window_height);
+    uint32_t window_flags = SDL_WINDOW_HIDDEN
+                          | SDL_WINDOW_RESIZABLE
+                          | SDL_WINDOW_ALLOW_HIGHDPI;
+    if (params->always_on_top) {
 #ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
 #else
@@ -254,15 +331,15 @@ screen_init_rendering(struct screen *screen, const char *window_title,
              "(compile with SDL >= 2.0.5 to enable it)");
 #endif
     }
-    if (window_borderless) {
+    if (params->window_borderless) {
         window_flags |= SDL_WINDOW_BORDERLESS;
     }
 
-    int x = window_x != SC_WINDOW_POSITION_UNDEFINED
-          ? window_x : (int) SDL_WINDOWPOS_UNDEFINED;
-    int y = window_y != SC_WINDOW_POSITION_UNDEFINED
-          ? window_y : (int) SDL_WINDOWPOS_UNDEFINED;
-    screen->window = SDL_CreateWindow(window_title, x, y,
+    int x = params->window_x != SC_WINDOW_POSITION_UNDEFINED
+          ? params->window_x : (int) SDL_WINDOWPOS_UNDEFINED;
+    int y = params->window_y != SC_WINDOW_POSITION_UNDEFINED
+          ? params->window_y : (int) SDL_WINDOWPOS_UNDEFINED;
+    screen->window = SDL_CreateWindow(params->window_title, x, y,
                                       window_size.width, window_size.height,
                                       window_flags);
     if (!screen->window) {
@@ -274,7 +351,8 @@ screen_init_rendering(struct screen *screen, const char *window_title,
                                           SDL_RENDERER_ACCELERATED);
     if (!screen->renderer) {
         LOGC("Could not create renderer: %s", SDL_GetError());
-        screen_destroy(screen);
+        SDL_DestroyWindow(screen->window);
+        video_buffer_destroy(&screen->vb);
         return false;
     }
 
@@ -283,15 +361,17 @@ screen_init_rendering(struct screen *screen, const char *window_title,
     const char *renderer_name = r ? NULL : renderer_info.name;
     LOGI("Renderer: %s", renderer_name ? renderer_name : "(unknown)");
 
+    screen->mipmaps = false;
+
     // starts with "opengl"
-    screen->use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
-    if (screen->use_opengl) {
+    bool use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
+    if (use_opengl) {
         struct sc_opengl *gl = &screen->gl;
         sc_opengl_init(gl);
 
         LOGI("OpenGL version: %s", gl->version);
 
-        if (mipmaps) {
+        if (params->mipmaps) {
             bool supports_mipmaps =
                 sc_opengl_version_at_least(gl, 3, 0, /* OpenGL 3.0+ */
                                                2, 0  /* OpenGL ES 2.0+ */);
@@ -305,7 +385,7 @@ screen_init_rendering(struct screen *screen, const char *window_title,
         } else {
             LOGI("Trilinear filtering disabled");
         }
-    } else {
+    } else if (params->mipmaps) {
         LOGD("Trilinear filtering disabled (not an OpenGL renderer)");
     }
 
@@ -317,12 +397,24 @@ screen_init_rendering(struct screen *screen, const char *window_title,
         LOGW("Could not load icon");
     }
 
-    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, frame_size.width,
-                                                  frame_size.height);
+    LOGI("Initial texture: %" PRIu16 "x%" PRIu16, params->frame_size.width,
+                                                  params->frame_size.height);
     screen->texture = create_texture(screen);
     if (!screen->texture) {
         LOGC("Could not create texture: %s", SDL_GetError());
-        screen_destroy(screen);
+        SDL_DestroyRenderer(screen->renderer);
+        SDL_DestroyWindow(screen->window);
+        video_buffer_destroy(&screen->vb);
+        return false;
+    }
+
+    screen->frame = av_frame_alloc();
+    if (!screen->frame) {
+        LOGC("Could not create screen frame");
+        SDL_DestroyTexture(screen->texture);
+        SDL_DestroyRenderer(screen->renderer);
+        SDL_DestroyWindow(screen->window);
+        video_buffer_destroy(&screen->vb);
         return false;
     }
 
@@ -333,25 +425,49 @@ screen_init_rendering(struct screen *screen, const char *window_title,
 
     screen_update_content_rect(screen);
 
+    if (params->fullscreen) {
+        screen_switch_fullscreen(screen);
+    }
+
+#ifdef CONTINUOUS_RESIZING_WORKAROUND
+    SDL_AddEventWatch(event_watcher, screen);
+#endif
+
+    static const struct sc_frame_sink_ops ops = {
+        .open = screen_frame_sink_open,
+        .close = screen_frame_sink_close,
+        .push = screen_frame_sink_push,
+    };
+
+    screen->frame_sink.ops = &ops;
+
+#ifndef NDEBUG
+    screen->open = false;
+#endif
+
     return true;
 }
 
-void
+static void
 screen_show_window(struct screen *screen) {
     SDL_ShowWindow(screen->window);
 }
 
+void
+screen_hide_window(struct screen *screen) {
+    SDL_HideWindow(screen->window);
+}
+
 void
 screen_destroy(struct screen *screen) {
-    if (screen->texture) {
-        SDL_DestroyTexture(screen->texture);
-    }
-    if (screen->renderer) {
-        SDL_DestroyRenderer(screen->renderer);
-    }
-    if (screen->window) {
-        SDL_DestroyWindow(screen->window);
-    }
+#ifndef NDEBUG
+    assert(!screen->open);
+#endif
+    av_frame_free(&screen->frame);
+    SDL_DestroyTexture(screen->texture);
+    SDL_DestroyRenderer(screen->renderer);
+    SDL_DestroyWindow(screen->window);
+    video_buffer_destroy(&screen->vb);
 }
 
 static void
@@ -448,24 +564,25 @@ update_texture(struct screen *screen, const AVFrame *frame) {
             frame->data[2], frame->linesize[2]);
 
     if (screen->mipmaps) {
-        assert(screen->use_opengl);
         SDL_GL_BindTexture(screen->texture, NULL, NULL);
         screen->gl.GenerateMipmap(GL_TEXTURE_2D);
         SDL_GL_UnbindTexture(screen->texture);
     }
 }
 
-bool
-screen_update_frame(struct screen *screen, struct video_buffer *vb) {
-    mutex_lock(vb->mutex);
-    const AVFrame *frame = video_buffer_consume_rendered_frame(vb);
+static bool
+screen_update_frame(struct screen *screen) {
+    av_frame_unref(screen->frame);
+    video_buffer_consume(&screen->vb, screen->frame);
+    AVFrame *frame = screen->frame;
+
+    fps_counter_add_rendered_frame(screen->fps_counter);
+
     struct size new_frame_size = {frame->width, frame->height};
     if (!prepare_for_frame(screen, new_frame_size)) {
-        mutex_unlock(vb->mutex);
         return false;
     }
     update_texture(screen, frame);
-    mutex_unlock(vb->mutex);
 
     screen_render(screen, false);
     return true;
@@ -552,31 +669,52 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
                                             content_size.height);
 }
 
-void
-screen_handle_window_event(struct screen *screen,
-                           const SDL_WindowEvent *event) {
-    switch (event->event) {
-        case SDL_WINDOWEVENT_EXPOSED:
-            screen_render(screen, true);
-            break;
-        case SDL_WINDOWEVENT_SIZE_CHANGED:
-            screen_render(screen, true);
-            break;
-        case SDL_WINDOWEVENT_MAXIMIZED:
-            screen->maximized = true;
-            break;
-        case SDL_WINDOWEVENT_RESTORED:
-            if (screen->fullscreen) {
-                // On Windows, in maximized+fullscreen, disabling fullscreen
-                // mode unexpectedly triggers the "restored" then "maximized"
-                // events, leaving the window in a weird state (maximized
-                // according to the events, but not maximized visually).
-                break;
+bool
+screen_handle_event(struct screen *screen, SDL_Event *event) {
+    switch (event->type) {
+        case EVENT_NEW_FRAME:
+            if (!screen->has_frame) {
+                screen->has_frame = true;
+                // this is the very first frame, show the window
+                screen_show_window(screen);
             }
-            screen->maximized = false;
-            apply_pending_resize(screen);
-            break;
+            bool ok = screen_update_frame(screen);
+            if (!ok) {
+                LOGW("Frame update failed\n");
+            }
+            return true;
+        case SDL_WINDOWEVENT:
+            if (!screen->has_frame) {
+                // Do nothing
+                return true;
+            }
+            switch (event->window.event) {
+                case SDL_WINDOWEVENT_EXPOSED:
+                    screen_render(screen, true);
+                    break;
+                case SDL_WINDOWEVENT_SIZE_CHANGED:
+                    screen_render(screen, true);
+                    break;
+                case SDL_WINDOWEVENT_MAXIMIZED:
+                    screen->maximized = true;
+                    break;
+                case SDL_WINDOWEVENT_RESTORED:
+                    if (screen->fullscreen) {
+                        // On Windows, in maximized+fullscreen, disabling
+                        // fullscreen mode unexpectedly triggers the "restored"
+                        // then "maximized" events, leaving the window in a
+                        // weird state (maximized according to the events, but
+                        // not maximized visually).
+                        break;
+                    }
+                    screen->maximized = false;
+                    apply_pending_resize(screen);
+                    break;
+            }
+            return true;
     }
+
+    return false;
 }
 
 struct point

app/src/screen.h

@@ -1,21 +1,30 @@
 #ifndef SCREEN_H
 #define SCREEN_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <SDL2/SDL.h>
 #include <libavformat/avformat.h>
 
-#include "config.h"
-#include "common.h"
+#include "coords.h"
 #include "opengl.h"
-
-struct video_buffer;
+#include "trait/frame_sink.h"
+#include "video_buffer.h"
 
 struct screen {
+    struct sc_frame_sink frame_sink; // frame sink trait
+
+#ifndef NDEBUG
+    bool open; // track the open/close state to assert correct behavior
+#endif
+
+    struct video_buffer vb;
+    struct fps_counter *fps_counter;
+
     SDL_Window *window;
     SDL_Renderer *renderer;
     SDL_Texture *texture;
-    bool use_opengl;
     struct sc_opengl gl;
     struct size frame_size;
     struct size content_size; // rotated frame_size
@@ -32,67 +41,44 @@ struct screen {
     bool has_frame;
     bool fullscreen;
     bool maximized;
-    bool no_window;
     bool mipmaps;
+
+    AVFrame *frame;
 };
 
-#define SCREEN_INITIALIZER { \
-    .window = NULL, \
-    .renderer = NULL, \
-    .texture = NULL, \
-    .use_opengl = false, \
-    .gl = {0}, \
-    .frame_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .content_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .resize_pending = false, \
-    .windowed_content_size = { \
-        .width = 0, \
-        .height = 0, \
-    }, \
-    .rotation = 0, \
-    .rect = { \
-        .x = 0, \
-        .y = 0, \
-        .w = 0, \
-        .h = 0, \
-    }, \
-    .has_frame = false, \
-    .fullscreen = false, \
-    .maximized = false, \
-    .no_window = false, \
-    .mipmaps = false, \
-}
+struct screen_params {
+    const char *window_title;
+    struct size frame_size;
+    bool always_on_top;
 
-// initialize default values
-void
-screen_init(struct screen *screen);
+    int16_t window_x;
+    int16_t window_y;
+    uint16_t window_width;  // accepts SC_WINDOW_POSITION_UNDEFINED
+    uint16_t window_height; // accepts SC_WINDOW_POSITION_UNDEFINED
+
+    bool window_borderless;
+
+    uint8_t rotation;
+    bool mipmaps;
+
+    bool fullscreen;
+};
 
 // initialize screen, create window, renderer and texture (window is hidden)
-// window_x and window_y accept SC_WINDOW_POSITION_UNDEFINED
 bool
-screen_init_rendering(struct screen *screen, const char *window_title,
-                      struct size frame_size, bool always_on_top,
-                      int16_t window_x, int16_t window_y, uint16_t window_width,
-                      uint16_t window_height, bool window_borderless,
-                      uint8_t rotation, bool mipmaps);
-
-// show the window
-void
-screen_show_window(struct screen *screen);
+screen_init(struct screen *screen, struct fps_counter *fps_counter,
+            const struct screen_params *params);
 
 // destroy window, renderer and texture (if any)
 void
 screen_destroy(struct screen *screen);
 
-// resize if necessary and write the rendered frame into the texture
-bool
-screen_update_frame(struct screen *screen, struct video_buffer *vb);
+// hide the window
+//
+// It is used to hide the window immediately on closing without waiting for
+// screen_destroy()
+void
+screen_hide_window(struct screen *screen);
 
 // render the texture to the renderer
 //
@@ -117,9 +103,9 @@ screen_resize_to_pixel_perfect(struct screen *screen);
 void
 screen_set_rotation(struct screen *screen, unsigned rotation);
 
-// react to window events
-void
-screen_handle_window_event(struct screen *screen, const SDL_WindowEvent *event);
+// react to SDL events
+bool
+screen_handle_event(struct screen *screen, SDL_Event *event);
 
 // convert point from window coordinates to frame coordinates
 // x and y are expressed in pixels

app/src/server.c

@@ -5,12 +5,10 @@
 #include <inttypes.h>
 #include <libgen.h>
 #include <stdio.h>
-#include <SDL2/SDL_thread.h>
 #include <SDL2/SDL_timer.h>
 #include <SDL2/SDL_platform.h>
 
-#include "config.h"
-#include "command.h"
+#include "adb.h"
 #include "util/log.h"
 #include "util/net.h"
 #include "util/str_util.h"
@@ -33,7 +31,7 @@ get_server_path(void) {
 #ifdef __WINDOWS__
         char *server_path = utf8_from_wide_char(server_path_env);
 #else
-        char *server_path = SDL_strdup(server_path_env);
+        char *server_path = strdup(server_path_env);
 #endif
         if (!server_path) {
             LOGE("Could not allocate memory");
@@ -45,7 +43,7 @@ get_server_path(void) {
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
-    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
+    char *server_path = strdup(DEFAULT_SERVER_PATH);
     if (!server_path) {
         LOGE("Could not allocate memory");
         return NULL;
@@ -60,19 +58,19 @@ get_server_path(void) {
         LOGE("Could not get executable path, "
              "using " SERVER_FILENAME " from current directory");
         // not found, use current directory
-        return SERVER_FILENAME;
+        return strdup(SERVER_FILENAME);
     }
     char *dir = dirname(executable_path);
     size_t dirlen = strlen(dir);
 
     // sizeof(SERVER_FILENAME) gives statically the size including the null byte
     size_t len = dirlen + 1 + sizeof(SERVER_FILENAME);
-    char *server_path = SDL_malloc(len);
+    char *server_path = malloc(len);
     if (!server_path) {
         LOGE("Could not alloc server path string, "
              "using " SERVER_FILENAME " from current directory");
-        SDL_free(executable_path);
-        return SERVER_FILENAME;
+        free(executable_path);
+        return strdup(SERVER_FILENAME);
     }
 
     memcpy(server_path, dir, dirlen);
@@ -80,7 +78,7 @@ get_server_path(void) {
     memcpy(&server_path[dirlen + 1], SERVER_FILENAME, sizeof(SERVER_FILENAME));
     // the final null byte has been copied with SERVER_FILENAME
 
-    SDL_free(executable_path);
+    free(executable_path);
 
     LOGD("Using server (portable): %s", server_path);
     return server_path;
@@ -95,44 +93,45 @@ push_server(const char *serial) {
     }
     if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
-        SDL_free(server_path);
+        free(server_path);
         return false;
     }
     process_t process = adb_push(serial, server_path, DEVICE_SERVER_PATH);
-    SDL_free(server_path);
-    return process_check_success(process, "adb push");
+    free(server_path);
+    return process_check_success(process, "adb push", true);
 }
 
 static bool
 enable_tunnel_reverse(const char *serial, uint16_t local_port) {
     process_t process = adb_reverse(serial, SOCKET_NAME, local_port);
-    return process_check_success(process, "adb reverse");
+    return process_check_success(process, "adb reverse", true);
 }
 
 static bool
 disable_tunnel_reverse(const char *serial) {
     process_t process = adb_reverse_remove(serial, SOCKET_NAME);
-    return process_check_success(process, "adb reverse --remove");
+    return process_check_success(process, "adb reverse --remove", true);
 }
 
 static bool
 enable_tunnel_forward(const char *serial, uint16_t local_port) {
     process_t process = adb_forward(serial, local_port, SOCKET_NAME);
-    return process_check_success(process, "adb forward");
+    return process_check_success(process, "adb forward", true);
 }
 
 static bool
 disable_tunnel_forward(const char *serial, uint16_t local_port) {
     process_t process = adb_forward_remove(serial, local_port);
-    return process_check_success(process, "adb forward --remove");
+    return process_check_success(process, "adb forward --remove", true);
 }
 
 static bool
 disable_tunnel(struct server *server) {
     if (server->tunnel_forward) {
-        return disable_tunnel_forward(server->serial, server->local_port);
+        return disable_tunnel_forward(server->params.serial,
+                                      server->local_port);
     }
-    return disable_tunnel_reverse(server->serial);
+    return disable_tunnel_reverse(server->params.serial);
 }
 
 static socket_t
@@ -146,7 +145,7 @@ enable_tunnel_reverse_any_port(struct server *server,
                                struct sc_port_range port_range) {
     uint16_t port = port_range.first;
     for (;;) {
-        if (!enable_tunnel_reverse(server->serial, port)) {
+        if (!enable_tunnel_reverse(server->params.serial, port)) {
             // the command itself failed, it will fail on any port
             return false;
         }
@@ -165,7 +164,7 @@ enable_tunnel_reverse_any_port(struct server *server,
         }
 
         // failure, disable tunnel and try another port
-        if (!disable_tunnel_reverse(server->serial)) {
+        if (!disable_tunnel_reverse(server->params.serial)) {
             LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
         }
 
@@ -193,7 +192,7 @@ enable_tunnel_forward_any_port(struct server *server,
     server->tunnel_forward = true;
     uint16_t port = port_range.first;
     for (;;) {
-        if (enable_tunnel_forward(server->serial, port)) {
+        if (enable_tunnel_forward(server->params.serial, port)) {
             // success
             server->local_port = port;
             return true;
@@ -201,7 +200,7 @@ enable_tunnel_forward_any_port(struct server *server,
 
         if (port < port_range.last) {
             LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
-                 port, port + 1);
+                 port, (uint16_t) (port + 1));
             port++;
             continue;
         }
@@ -257,12 +256,12 @@ execute_server(struct server *server, const struct server_params *params) {
     char bit_rate_string[11];
     char max_fps_string[6];
     char lock_video_orientation_string[5];
-    char display_id_string[6];
+    char display_id_string[11];
     sprintf(max_size_string, "%"PRIu16, params->max_size);
     sprintf(bit_rate_string, "%"PRIu32, params->bit_rate);
     sprintf(max_fps_string, "%"PRIu16, params->max_fps);
     sprintf(lock_video_orientation_string, "%"PRIi8, params->lock_video_orientation);
-    sprintf(display_id_string, "%"PRIu16, params->display_id);
+    sprintf(display_id_string, "%"PRIu32, params->display_id);
     const char *const cmd[] = {
         "shell",
         "CLASSPATH=" DEVICE_SERVER_PATH,
@@ -294,6 +293,8 @@ execute_server(struct server *server, const struct server_params *params) {
         params->show_touches ? "true" : "false",
         params->stay_awake ? "true" : "false",
         params->codec_options ? params->codec_options : "-",
+        params->encoder_name ? params->encoder_name : "-",
+        params->power_off_on_close ? "true" : "false",
     };
 #ifdef SERVER_DEBUGGER
     LOGI("Server debugger waiting for a client on device port "
@@ -306,7 +307,7 @@ execute_server(struct server *server, const struct server_params *params) {
     //     Port: 5005
     // Then click on "Debug"
 #endif
-    return adb_execute(server->serial, cmd, sizeof(cmd) / sizeof(cmd[0]));
+    return adb_execute(server->params.serial, cmd, ARRAY_LEN(cmd));
 }
 
 static socket_t
@@ -352,15 +353,102 @@ close_socket(socket_t socket) {
     }
 }
 
-void
-server_init(struct server *server) {
-    *server = (struct server) SERVER_INITIALIZER;
+static void
+server_params_destroy(struct server_params *params) {
+    // The server stores a copy of the params provided by the user
+    free((char *) params->crop);
+    free((char *) params->codec_options);
+    free((char *) params->encoder_name);
+}
+
+static bool
+server_params_copy(struct server_params *dst, const struct server_params *src) {
+    // params reference user-allocated memory, so we must copy them to handle
+    // them from a separate thread
+
+    *dst = *src;
+
+    dst->crop = NULL;
+    dst->codec_options = NULL;
+    dst->encoder_name = NULL;
+
+    if (src->crop) {
+        dst->crop = strdup(src->crop);
+        if (!dst->crop) {
+            goto error;
+        }
+    }
+
+    if (src->codec_options) {
+        dst->codec_options = strdup(src->codec_options);
+        if (!dst->codec_options) {
+            goto error;
+        }
+    }
+
+    if (src->encoder_name) {
+        dst->encoder_name = strdup(src->encoder_name);
+        if (!dst->encoder_name) {
+            goto error;
+        }
+    }
+
+    return true;
+
+error:
+    server_params_destroy(dst);
+    return false;
+};
+
+
+bool
+server_init(struct server *server, const struct server_params *params) {
+    if (!server_params_copy(&server->params, params)) {
+        LOGE("Could not copy server params");
+        return false;
+    }
+
+    server->process = PROCESS_NONE;
+    atomic_flag_clear_explicit(&server->server_socket_closed,
+                               memory_order_relaxed);
+
+    bool ok = sc_mutex_init(&server->mutex);
+    if (!ok) {
+        server_params_destroy(&server->params);
+        return false;
+    }
+
+    ok = sc_cond_init(&server->process_terminated_cond);
+    if (!ok) {
+        sc_mutex_destroy(&server->mutex);
+        server_params_destroy(&server->params);
+        return false;
+    }
+
+    server->process_terminated = false;
+
+    server->server_socket = INVALID_SOCKET;
+    server->video_socket = INVALID_SOCKET;
+    server->control_socket = INVALID_SOCKET;
+
+    server->local_port = 0;
+
+    server->tunnel_enabled = false;
+    server->tunnel_forward = false;
+
+    return true;
 }
 
 static int
 run_wait_server(void *data) {
     struct server *server = data;
-    cmd_simple_wait(server->process, NULL); // ignore exit code
+    process_wait(server->process, false); // ignore exit code
+
+    sc_mutex_lock(&server->mutex);
+    server->process_terminated = true;
+    sc_cond_signal(&server->process_terminated_cond);
+    sc_mutex_unlock(&server->mutex);
+
     // no need for synchronization, server_socket is initialized before this
     // thread was created
     if (server->server_socket != INVALID_SOCKET
@@ -373,52 +461,60 @@ run_wait_server(void *data) {
     return 0;
 }
 
-bool
-server_start(struct server *server, const char *serial,
-             const struct server_params *params) {
-    server->port_range = params->port_range;
+static int
+run_server(void *data) {
+    struct server *server = data;
 
-    if (serial) {
-        server->serial = SDL_strdup(serial);
-        if (!server->serial) {
-            return false;
-        }
-    }
+    const struct server_params *params = &server->params;
+    const struct server_callbacks *cbs = &server->cbs;
+    void *userdata = server->userdata;
 
-    if (!push_server(serial)) {
-        goto error1;
+    if (!push_server(params->serial)) {
+        cbs->on_connection_failed(server);
+        goto end;
     }
 
     if (!enable_tunnel_any_port(server, params->port_range,
                                 params->force_adb_forward)) {
-        goto error1;
+        cbs->on_connection_failed(server);
+        goto end;
     }
 
     // server will connect to our server socket
     server->process = execute_server(server, params);
     if (server->process == PROCESS_NONE) {
-        goto error2;
+        cbs->on_connection_failed(server);
+        goto end;
     }
 
+    process_wait(server->process, false); // ignore exit code
+
+end:
+    return 0;
+}
+
+bool
+server_start(struct server *server) {
+
     // If the server process dies before connecting to the server socket, then
     // the client will be stuck forever on accept(). To avoid the problem, we
     // must be able to wake up the accept() call when the server dies. To keep
     // things simple and multiplatform, just spawn a new thread waiting for the
     // server process and calling shutdown()/close() on the server socket if
     // necessary to wake up any accept() blocking call.
-    server->wait_server_thread =
-        SDL_CreateThread(run_wait_server, "wait-server", server);
-    if (!server->wait_server_thread) {
-        cmd_terminate(server->process);
-        cmd_simple_wait(server->process, NULL); // ignore exit code
-        goto error2;
+    bool ok = sc_thread_create(&server->wait_server_thread, run_wait_server,
+                               "wait-server", server);
+    if (!ok) {
+        process_terminate(server->process);
+        process_wait(server->process, true); // ignore exit code
+        goto error;
     }
 
     server->tunnel_enabled = true;
 
     return true;
 
-error2:
+error:
     if (!server->tunnel_forward) {
         bool was_closed =
             atomic_flag_test_and_set(&server->server_socket_closed);
@@ -428,8 +524,7 @@ error2:
         close_socket(server->server_socket);
     }
     disable_tunnel(server);
-error1:
-    SDL_free(server->serial);
+
     return false;
 }
 
@@ -492,17 +587,40 @@ server_stop(struct server *server) {
 
     assert(server->process != PROCESS_NONE);
 
-    cmd_terminate(server->process);
-
     if (server->tunnel_enabled) {
         // ignore failure
         disable_tunnel(server);
     }
 
-    SDL_WaitThread(server->wait_server_thread, NULL);
+    // Give some delay for the server to terminate properly
+    sc_mutex_lock(&server->mutex);
+    bool signaled = false;
+    if (!server->process_terminated) {
+#define WATCHDOG_DELAY_MS 1000
+        signaled = sc_cond_timedwait(&server->process_terminated_cond,
+                                     &server->mutex,
+                                     WATCHDOG_DELAY_MS);
+    }
+    sc_mutex_unlock(&server->mutex);
+
+    // After this delay, kill the server if it's not dead already.
+    // On some devices, closing the sockets is not sufficient to wake up the
+    // blocking calls while the device is asleep.
+    if (!signaled) {
+        // The process is terminated, but not reaped (closed) yet, so its PID
+        // is still valid.
+        LOGW("Killing the server...");
+        process_terminate(server->process);
+    }
+
+    sc_thread_join(&server->wait_server_thread, NULL);
+    process_close(server->process);
 }
 
 void
 server_destroy(struct server *server) {
-    SDL_free(server->serial);
+    free(server->serial);
+    sc_cond_destroy(&server->process_terminated_cond);
+    sc_mutex_destroy(&server->mutex);
+    server_params_destroy(&server->params);
 }

app/src/server.h

@@ -1,73 +1,76 @@
 #ifndef SERVER_H
 #define SERVER_H
 
+#include "common.h"
+
 #include <stdatomic.h>
 #include <stdbool.h>
 #include <stdint.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
-#include "command.h"
-#include "common.h"
+#include "adb.h"
 #include "scrcpy.h"
 #include "util/log.h"
 #include "util/net.h"
-
-struct server {
-    char *serial;
-    process_t process;
-    SDL_Thread *wait_server_thread;
-    atomic_flag server_socket_closed;
-    socket_t server_socket; // only used if !tunnel_forward
-    socket_t video_socket;
-    socket_t control_socket;
-    struct sc_port_range port_range;
-    uint16_t local_port; // selected from port_range
-    bool tunnel_enabled;
-    bool tunnel_forward; // use "adb forward" instead of "adb reverse"
-};
-
-#define SERVER_INITIALIZER { \
-    .serial = NULL, \
-    .process = PROCESS_NONE, \
-    .wait_server_thread = NULL, \
-    .server_socket_closed = ATOMIC_FLAG_INIT, \
-    .server_socket = INVALID_SOCKET, \
-    .video_socket = INVALID_SOCKET, \
-    .control_socket = INVALID_SOCKET, \
-    .port_range = { \
-        .first = 0, \
-        .last = 0, \
-    }, \
-    .local_port = 0, \
-    .tunnel_enabled = false, \
-    .tunnel_forward = false, \
-}
+#include "util/thread.h"
 
 struct server_params {
     enum sc_log_level log_level;
+    const char *serial;
     const char *crop;
     const char *codec_options;
+    const char *encoder_name;
     struct sc_port_range port_range;
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
     int8_t lock_video_orientation;
     bool control;
-    uint16_t display_id;
+    uint32_t display_id;
     bool show_touches;
     bool stay_awake;
     bool force_adb_forward;
+    bool power_off_on_close;
 };
 
-// init default values
-void
-server_init(struct server *server);
+struct server {
+    char *serial;
+    process_t process;
+    sc_thread wait_server_thread;
+    atomic_flag server_socket_closed;
+
+    sc_mutex mutex;
+    sc_cond process_terminated_cond;
+    bool process_terminated;
+
+    socket_t server_socket; // only used if !tunnel_forward
+    socket_t video_socket;
+    socket_t control_socket;
+    uint16_t local_port; // selected from port_range
+    bool tunnel_enabled;
+    bool tunnel_forward; // use "adb forward" instead of "adb reverse"
+
+    // The internal allocated strings are copies owned by the server
+    struct server_params params;
+
+    const struct server_callbacks *cbs;
+    void *userdata;
+};
+
+struct server_callbacks {
+    void (*on_connection_failed)(struct server *server);
+    void (*on_connected)(struct server *server, const char *name,
+                         struct size size, void *userdata);
+    void (*on_disconnected)(struct server *server, void *userdata);
+};
+
+// init server fields
+bool
+server_init(struct server *server, const struct server_params *params);
 
 // push, enable tunnel et start the server
 bool
-server_start(struct server *server, const char *serial,
-             const struct server_params *params);
+server_start(struct server *server, const struct server_callbacks *cbs,
+             void *userdata);
 
 // block until the communication with the server is established
 bool

app/src/stream.c

@@ -4,12 +4,8 @@
 #include <libavformat/avformat.h>
 #include <libavutil/time.h>
 #include <SDL2/SDL_events.h>
-#include <SDL2/SDL_mutex.h>
-#include <SDL2/SDL_thread.h>
 #include <unistd.h>
 
-#include "config.h"
-#include "compat.h"
 #include "decoder.h"
 #include "events.h"
 #include "recorder.h"
@@ -70,25 +66,11 @@ notify_stopped(void) {
 }
 
 static bool
-process_config_packet(struct stream *stream, AVPacket *packet) {
-    if (stream->recorder && !recorder_push(stream->recorder, packet)) {
-        LOGE("Could not send config packet to recorder");
-        return false;
-    }
-    return true;
-}
-
-static bool
-process_frame(struct stream *stream, AVPacket *packet) {
-    if (stream->decoder && !decoder_push(stream->decoder, packet)) {
-        return false;
-    }
-
-    if (stream->recorder) {
-        packet->dts = packet->pts;
-
-        if (!recorder_push(stream->recorder, packet)) {
-            LOGE("Could not send packet to recorder");
+push_packet_to_sinks(struct stream *stream, const AVPacket *packet) {
+    for (unsigned i = 0; i < stream->sink_count; ++i) {
+        struct sc_packet_sink *sink = stream->sinks[i];
+        if (!sink->ops->push(sink, packet)) {
+            LOGE("Could not send config packet to sink %d", i);
             return false;
         }
     }
@@ -115,9 +97,11 @@ stream_parse(struct stream *stream, AVPacket *packet) {
         packet->flags |= AV_PKT_FLAG_KEY;
     }
 
-    bool ok = process_frame(stream, packet);
+    packet->dts = packet->pts;
+
+    bool ok = push_packet_to_sinks(stream, packet);
     if (!ok) {
-        LOGE("Could not process frame");
+        LOGE("Could not process packet");
         return false;
     }
 
@@ -160,7 +144,7 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
 
     if (is_config) {
         // config packet
-        bool ok = process_config_packet(stream, packet);
+        bool ok = push_packet_to_sinks(stream, packet);
         if (!ok) {
             return false;
         }
@@ -181,6 +165,33 @@ stream_push_packet(struct stream *stream, AVPacket *packet) {
     return true;
 }
 
+static void
+stream_close_first_sinks(struct stream *stream, unsigned count) {
+    while (count) {
+        struct sc_packet_sink *sink = stream->sinks[--count];
+        sink->ops->close(sink);
+    }
+}
+
+static inline void
+stream_close_sinks(struct stream *stream) {
+    stream_close_first_sinks(stream, stream->sink_count);
+}
+
+static bool
+stream_open_sinks(struct stream *stream, const AVCodec *codec) {
+    for (unsigned i = 0; i < stream->sink_count; ++i) {
+        struct sc_packet_sink *sink = stream->sinks[i];
+        if (!sink->ops->open(sink, codec)) {
+            LOGE("Could not open packet sink %d", i);
+            stream_close_first_sinks(stream, i);
+            return false;
+        }
+    }
+
+    return true;
+}
+
 static int
 run_stream(void *data) {
     struct stream *stream = data;
@@ -197,27 +208,15 @@ run_stream(void *data) {
         goto end;
     }
 
-    if (stream->decoder && !decoder_open(stream->decoder, codec)) {
-        LOGE("Could not open decoder");
+    if (!stream_open_sinks(stream, codec)) {
+        LOGE("Could not open stream sinks");
         goto finally_free_codec_ctx;
     }
 
-    if (stream->recorder) {
-        if (!recorder_open(stream->recorder, codec)) {
-            LOGE("Could not open recorder");
-            goto finally_close_decoder;
-        }
-
-        if (!recorder_start(stream->recorder)) {
-            LOGE("Could not start recorder");
-            goto finally_close_recorder;
-        }
-    }
-
     stream->parser = av_parser_init(AV_CODEC_ID_H264);
     if (!stream->parser) {
         LOGE("Could not initialize parser");
-        goto finally_stop_and_join_recorder;
+        goto finally_close_sinks;
     }
 
     // We must only pass complete frames to av_parser_parse2()!
@@ -247,20 +246,8 @@ run_stream(void *data) {
     }
 
     av_parser_close(stream->parser);
-finally_stop_and_join_recorder:
-    if (stream->recorder) {
-        recorder_stop(stream->recorder);
-        LOGI("Finishing recording...");
-        recorder_join(stream->recorder);
-    }
-finally_close_recorder:
-    if (stream->recorder) {
-        recorder_close(stream->recorder);
-    }
-finally_close_decoder:
-    if (stream->decoder) {
-        decoder_close(stream->decoder);
-    }
+finally_close_sinks:
+    stream_close_sinks(stream);
 finally_free_codec_ctx:
     avcodec_free_context(&stream->codec_ctx);
 end:
@@ -269,34 +256,33 @@ end:
 }
 
 void
-stream_init(struct stream *stream, socket_t socket,
-            struct decoder *decoder, struct recorder *recorder) {
+stream_init(struct stream *stream, socket_t socket) {
     stream->socket = socket;
-    stream->decoder = decoder,
-    stream->recorder = recorder;
     stream->has_pending = false;
+    stream->sink_count = 0;
+}
+
+void
+stream_add_sink(struct stream *stream, struct sc_packet_sink *sink) {
+    assert(stream->sink_count < STREAM_MAX_SINKS);
+    assert(sink);
+    assert(sink->ops);
+    stream->sinks[stream->sink_count++] = sink;
 }
 
 bool
 stream_start(struct stream *stream) {
     LOGD("Starting stream thread");
 
-    stream->thread = SDL_CreateThread(run_stream, "stream", stream);
-    if (!stream->thread) {
+    bool ok = sc_thread_create(&stream->thread, run_stream, "stream", stream);
+    if (!ok) {
         LOGC("Could not start stream thread");
         return false;
     }
     return true;
 }
 
-void
-stream_stop(struct stream *stream) {
-    if (stream->decoder) {
-        decoder_interrupt(stream->decoder);
-    }
-}
-
 void
 stream_join(struct stream *stream) {
-    SDL_WaitThread(stream->thread, NULL);
+    sc_thread_join(&stream->thread, NULL);
 }

app/src/stream.h

@@ -1,23 +1,26 @@
 #ifndef STREAM_H
 #define STREAM_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <libavformat/avformat.h>
 #include <SDL2/SDL_atomic.h>
-#include <SDL2/SDL_thread.h>
 
-#include "config.h"
+#include "trait/packet_sink.h"
 #include "util/net.h"
+#include "util/thread.h"
 
-struct video_buffer;
+#define STREAM_MAX_SINKS 2
 
 struct stream {
     socket_t socket;
-    struct video_buffer *video_buffer;
-    SDL_Thread *thread;
-    struct decoder *decoder;
-    struct recorder *recorder;
+    sc_thread thread;
+
+    struct sc_packet_sink *sinks[STREAM_MAX_SINKS];
+    unsigned sink_count;
+
     AVCodecContext *codec_ctx;
     AVCodecParserContext *parser;
     // successive packets may need to be concatenated, until a non-config
@@ -27,15 +30,14 @@ struct stream {
 };
 
 void
-stream_init(struct stream *stream, socket_t socket,
-            struct decoder *decoder, struct recorder *recorder);
+stream_init(struct stream *stream, socket_t socket);
+
+void
+stream_add_sink(struct stream *stream, struct sc_packet_sink *sink);
 
 bool
 stream_start(struct stream *stream);
 
-void
-stream_stop(struct stream *stream);
-
 void
 stream_join(struct stream *stream);
 

app/src/sys/unix/process.c

@@ -1,13 +1,4 @@
-// for portability
-#define _POSIX_SOURCE // for kill()
-#define _BSD_SOURCE // for readlink()
-
-// modern glibc will complain without this
-#define _DEFAULT_SOURCE
-
-#include "command.h"
-
-#include "config.h"
+#include "util/process.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -17,14 +8,13 @@
 #include <string.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <sys/stat.h>
 #include <sys/wait.h>
 #include <unistd.h>
 
 #include "util/log.h"
 
 bool
-cmd_search(const char *file) {
+search_executable(const char *file) {
     char *path = getenv("PATH");
     if (!path)
         return false;
@@ -60,7 +50,7 @@ cmd_search(const char *file) {
 }
 
 enum process_result
-cmd_execute(const char *const argv[], pid_t *pid) {
+process_execute(const char *const argv[], pid_t *pid) {
     int fd[2];
 
     if (pipe(fd) == -1) {
@@ -122,29 +112,37 @@ end:
 }
 
 bool
-cmd_terminate(pid_t pid) {
+process_terminate(pid_t pid) {
     if (pid <= 0) {
         LOGC("Requested to kill %d, this is an error. Please report the bug.\n",
              (int) pid);
         abort();
     }
-    return kill(pid, SIGTERM) != -1;
+    return kill(pid, SIGKILL) != -1;
 }
 
-bool
-cmd_simple_wait(pid_t pid, int *exit_code) {
-    int status;
+exit_code_t
+process_wait(pid_t pid, bool close) {
     int code;
-    if (waitpid(pid, &status, 0) == -1 || !WIFEXITED(status)) {
+    int options = WEXITED;
+    if (!close) {
+        options |= WNOWAIT;
+    }
+
+    siginfo_t info;
+    int r = waitid(P_PID, pid, &info, options);
+    if (r == -1 || info.si_code != CLD_EXITED) {
         // could not wait, or exited unexpectedly, probably by a signal
-        code = -1;
+        code = NO_EXIT_CODE;
     } else {
-        code = WEXITSTATUS(status);
+        code = info.si_status;
     }
-    if (exit_code) {
-        *exit_code = code;
-    }
-    return !code;
+    return code;
+}
+
+void
+process_close(pid_t pid) {
+    process_wait(pid, true); // ignore exit code
 }
 
 char *
@@ -158,7 +156,7 @@ get_executable_path(void) {
         return NULL;
     }
     buf[len] = '\0';
-    return SDL_strdup(buf);
+    return strdup(buf);
 #else
     // in practice, we only need this feature for portable builds, only used on
     // Windows, so we don't care implementing it for every platform

app/src/sys/win/process.c

@@ -1,8 +1,8 @@
-#include "command.h"
+#include "util/process.h"
 
+#include <assert.h>
 #include <sys/stat.h>
 
-#include "config.h"
 #include "util/log.h"
 #include "util/str_util.h"
 
@@ -21,7 +21,7 @@ build_cmd(char *cmd, size_t len, const char *const argv[]) {
 }
 
 enum process_result
-cmd_execute(const char *const argv[], HANDLE *handle) {
+process_execute(const char *const argv[], HANDLE *handle) {
     STARTUPINFOW si;
     PROCESS_INFORMATION pi;
     memset(&si, 0, sizeof(si));
@@ -39,14 +39,9 @@ cmd_execute(const char *const argv[], HANDLE *handle) {
         return PROCESS_ERROR_GENERIC;
     }
 
-#ifdef WINDOWS_NOCONSOLE
-    int flags = CREATE_NO_WINDOW;
-#else
-    int flags = 0;
-#endif
-    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, flags, NULL, NULL, &si,
+    if (!CreateProcessW(NULL, wide, NULL, NULL, FALSE, 0, NULL, NULL, &si,
                         &pi)) {
-        SDL_free(wide);
+        free(wide);
         *handle = NULL;
         if (GetLastError() == ERROR_FILE_NOT_FOUND) {
             return PROCESS_ERROR_MISSING_BINARY;
@@ -54,28 +49,35 @@ cmd_execute(const char *const argv[], HANDLE *handle) {
         return PROCESS_ERROR_GENERIC;
     }
 
-    SDL_free(wide);
+    free(wide);
     *handle = pi.hProcess;
     return PROCESS_SUCCESS;
 }
 
 bool
-cmd_terminate(HANDLE handle) {
-    return TerminateProcess(handle, 1) && CloseHandle(handle);
+process_terminate(HANDLE handle) {
+    return TerminateProcess(handle, 1);
 }
 
-bool
-cmd_simple_wait(HANDLE handle, DWORD *exit_code) {
+exit_code_t
+process_wait(HANDLE handle, bool close) {
     DWORD code;
     if (WaitForSingleObject(handle, INFINITE) != WAIT_OBJECT_0
             || !GetExitCodeProcess(handle, &code)) {
         // could not wait or retrieve the exit code
-        code = -1; // max value, it's unsigned
+        code = NO_EXIT_CODE; // max value, it's unsigned
     }
-    if (exit_code) {
-        *exit_code = code;
+    if (close) {
+        CloseHandle(handle);
     }
-    return !code;
+    return code;
+}
+
+void
+process_close(HANDLE handle) {
+    bool closed = CloseHandle(handle);
+    assert(closed);
+    (void) closed;
 }
 
 char *
@@ -103,7 +105,7 @@ is_regular_file(const char *path) {
 
     struct _stat path_stat;
     int r = _wstat(wide_path, &path_stat);
-    SDL_free(wide_path);
+    free(wide_path);
 
     if (r) {
         perror("stat");

app/src/tiny_xpm.c

@@ -6,7 +6,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "config.h"
 #include "util/log.h"
 
 struct index {

app/src/tiny_xpm.h

@@ -1,9 +1,9 @@
 #ifndef TINYXPM_H
 #define TINYXPM_H
 
-#include <SDL2/SDL.h>
+#include "common.h"
 
-#include "config.h"
+#include <SDL2/SDL.h>
 
 SDL_Surface *
 read_xpm(char *xpm[]);

app/src/trait/frame_sink.h

@@ -0,0 +1,26 @@
+#ifndef SC_FRAME_SINK
+#define SC_FRAME_SINK
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+
+typedef struct AVFrame AVFrame;
+
+/**
+ * Frame sink trait.
+ *
+ * Component able to receive AVFrames should implement this trait.
+ */
+struct sc_frame_sink {
+    const struct sc_frame_sink_ops *ops;
+};
+
+struct sc_frame_sink_ops {
+    bool (*open)(struct sc_frame_sink *sink);
+    void (*close)(struct sc_frame_sink *sink);
+    bool (*push)(struct sc_frame_sink *sink, const AVFrame *frame);
+};
+
+#endif

app/src/trait/packet_sink.h

@@ -0,0 +1,27 @@
+#ifndef SC_PACKET_SINK
+#define SC_PACKET_SINK
+
+#include "common.h"
+
+#include <assert.h>
+#include <stdbool.h>
+
+typedef struct AVCodec AVCodec;
+typedef struct AVPacket AVPacket;
+
+/**
+ * Packet sink trait.
+ *
+ * Component able to receive AVPackets should implement this trait.
+ */
+struct sc_packet_sink {
+    const struct sc_packet_sink_ops *ops;
+};
+
+struct sc_packet_sink_ops {
+    bool (*open)(struct sc_packet_sink *sink, const AVCodec *codec);
+    void (*close)(struct sc_packet_sink *sink);
+    bool (*push)(struct sc_packet_sink *sink, const AVPacket *packet);
+};
+
+#endif

app/src/util/buffer_util.h

@@ -1,11 +1,11 @@
 #ifndef BUFFER_UTIL_H
 #define BUFFER_UTIL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 
-#include "config.h"
-
 static inline void
 buffer_write16be(uint8_t *buf, uint16_t value) {
     buf[0] = value >> 8;
@@ -33,7 +33,7 @@ buffer_read16be(const uint8_t *buf) {
 
 static inline uint32_t
 buffer_read32be(const uint8_t *buf) {
-    return (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+    return ((uint32_t) buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
 }
 
 static inline uint64_t

app/src/util/cbuf.h

@@ -2,11 +2,11 @@
 #ifndef CBUF_H
 #define CBUF_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <unistd.h>
 
-#include "config.h"
-
 // To define a circular buffer type of 20 ints:
 //     struct cbuf_int CBUF(int, 20);
 //

app/src/util/lock.h

@@ -1,74 +0,0 @@
-#ifndef LOCK_H
-#define LOCK_H
-
-#include <stdint.h>
-#include <SDL2/SDL_mutex.h>
-
-#include "config.h"
-#include "log.h"
-
-static inline void
-mutex_lock(SDL_mutex *mutex) {
-    int r = SDL_LockMutex(mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not lock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline void
-mutex_unlock(SDL_mutex *mutex) {
-    int r = SDL_UnlockMutex(mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not unlock mutex: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline void
-cond_wait(SDL_cond *cond, SDL_mutex *mutex) {
-    int r = SDL_CondWait(cond, mutex);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not wait on condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-static inline int
-cond_wait_timeout(SDL_cond *cond, SDL_mutex *mutex, uint32_t ms) {
-    int r = SDL_CondWaitTimeout(cond, mutex, ms);
-#ifndef NDEBUG
-    if (r < 0) {
-        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
-        abort();
-    }
-#endif
-    return r;
-}
-
-static inline void
-cond_signal(SDL_cond *cond) {
-    int r = SDL_CondSignal(cond);
-#ifndef NDEBUG
-    if (r) {
-        LOGC("Could not signal a condition: %s", SDL_GetError());
-        abort();
-    }
-#else
-    (void) r;
-#endif
-}
-
-#endif

app/src/util/net.c

@@ -3,7 +3,6 @@
 #include <stdio.h>
 #include <SDL2/SDL_platform.h>
 
-#include "config.h"
 #include "log.h"
 
 #ifdef __WINDOWS__

app/src/util/net.h

@@ -1,6 +1,8 @@
 #ifndef NET_H
 #define NET_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <SDL2/SDL_platform.h>
@@ -17,8 +19,6 @@
   typedef int socket_t;
 #endif
 
-#include "config.h"
-
 bool
 net_init(void);
 

app/src/util/process.c

@@ -0,0 +1,21 @@
+#include "process.h"
+
+#include "log.h"
+
+bool
+process_check_success(process_t proc, const char *name, bool close) {
+    if (proc == PROCESS_NONE) {
+        LOGE("Could not execute \"%s\"", name);
+        return false;
+    }
+    exit_code_t exit_code = process_wait(proc, close);
+    if (exit_code) {
+        if (exit_code != NO_EXIT_CODE) {
+            LOGE("\"%s\" returned with value %" PRIexitcode, name, exit_code);
+        } else {
+            LOGE("\"%s\" exited unexpectedly", name);
+        }
+        return false;
+    }
+    return true;
+}

app/src/util/process.h

@@ -1,8 +1,9 @@
-#ifndef COMMAND_H
-#define COMMAND_H
+#ifndef SC_PROCESS_H
+#define SC_PROCESS_H
+
+#include "common.h"
 
 #include <stdbool.h>
-#include <inttypes.h>
 
 #ifdef _WIN32
 
@@ -12,11 +13,7 @@
 # define PATH_SEPARATOR '\\'
 # define PRIexitcode "lu"
 // <https://stackoverflow.com/a/44383330/1987178>
-# ifdef _WIN64
-#   define PRIsizet PRIu64
-# else
-#   define PRIsizet PRIu32
-# endif
+# define PRIsizet "Iu"
 # define PROCESS_NONE NULL
 # define NO_EXIT_CODE -1u // max value as unsigned
   typedef HANDLE process_t;
@@ -35,58 +32,45 @@
 
 #endif
 
-#include "config.h"
-
 enum process_result {
     PROCESS_SUCCESS,
     PROCESS_ERROR_GENERIC,
     PROCESS_ERROR_MISSING_BINARY,
 };
 
-#ifndef __WINDOWS__
-bool
-cmd_search(const char *file);
-#endif
-
+// execute the command and write the result to the output parameter "process"
 enum process_result
-cmd_execute(const char *const argv[], process_t *process);
+process_execute(const char *const argv[], process_t *process);
 
+// kill the process
 bool
-cmd_terminate(process_t pid);
+process_terminate(process_t pid);
 
-bool
-cmd_simple_wait(process_t pid, exit_code_t *exit_code);
+// wait and close the process (like waitpid())
+// the "close" flag indicates if the process must be "closed" (reaped)
+// (passing false is equivalent to enable WNOWAIT in waitid())
+exit_code_t
+process_wait(process_t pid, bool close);
 
-process_t
-adb_execute(const char *serial, const char *const adb_cmd[], size_t len);
-
-process_t
-adb_forward(const char *serial, uint16_t local_port,
-            const char *device_socket_name);
-
-process_t
-adb_forward_remove(const char *serial, uint16_t local_port);
-
-process_t
-adb_reverse(const char *serial, const char *device_socket_name,
-            uint16_t local_port);
-
-process_t
-adb_reverse_remove(const char *serial, const char *device_socket_name);
-
-process_t
-adb_push(const char *serial, const char *local, const char *remote);
-
-process_t
-adb_install(const char *serial, const char *local);
+// close the process
+//
+// Semantically, process_wait(close) = process_wait(noclose) + process_close
+void
+process_close(process_t pid);
 
 // convenience function to wait for a successful process execution
 // automatically log process errors with the provided process name
 bool
-process_check_success(process_t proc, const char *name);
+process_check_success(process_t proc, const char *name, bool close);
+
+#ifndef _WIN32
+// only used to find package manager, not implemented for Windows
+bool
+search_executable(const char *file);
+#endif
 
 // return the absolute path of the executable (the scrcpy binary)
-// may be NULL on error; to be freed by SDL_free
+// may be NULL on error; to be freed by free()
 char *
 get_executable_path(void);
 

app/src/util/queue.h

@@ -2,12 +2,12 @@
 #ifndef QUEUE_H
 #define QUEUE_H
 
+#include "common.h"
+
 #include <assert.h>
 #include <stdbool.h>
 #include <stddef.h>
 
-#include "config.h"
-
 // To define a queue type of "struct foo":
 //    struct queue_foo QUEUE(struct foo);
 #define QUEUE(TYPE) { \

app/src/util/str_util.c

@@ -10,10 +10,6 @@
 # include <tchar.h>
 #endif
 
-#include <SDL2/SDL_stdinc.h>
-
-#include "config.h"
-
 size_t
 xstrncpy(char *dest, const char *src, size_t n) {
     size_t i;
@@ -51,7 +47,7 @@ truncated:
 char *
 strquote(const char *src) {
     size_t len = strlen(src);
-    char *quoted = SDL_malloc(len + 3);
+    char *quoted = malloc(len + 3);
     if (!quoted) {
         return NULL;
     }
@@ -144,6 +140,24 @@ parse_integer_with_suffix(const char *s, long *out) {
     return true;
 }
 
+bool
+strlist_contains(const char *list, char sep, const char *s) {
+    char *p;
+    do {
+        p = strchr(list, sep);
+
+        size_t token_len = p ? (size_t) (p - list) : strlen(list);
+        if (!strncmp(list, s, token_len)) {
+            return true;
+        }
+
+        if (p) {
+            list = p + 1;
+        }
+    } while (p);
+    return false;
+}
+
 size_t
 utf8_truncation_index(const char *utf8, size_t max_len) {
     size_t len = strlen(utf8);
@@ -169,7 +183,7 @@ utf8_to_wide_char(const char *utf8) {
         return NULL;
     }
 
-    wchar_t *wide = SDL_malloc(len * sizeof(wchar_t));
+    wchar_t *wide = malloc(len * sizeof(wchar_t));
     if (!wide) {
         return NULL;
     }
@@ -185,7 +199,7 @@ utf8_from_wide_char(const wchar_t *ws) {
         return NULL;
     }
 
-    char *utf8 = SDL_malloc(len);
+    char *utf8 = malloc(len);
     if (!utf8) {
         return NULL;
     }

app/src/util/str_util.h

@@ -1,11 +1,11 @@
 #ifndef STRUTIL_H
 #define STRUTIL_H
 
+#include "common.h"
+
 #include <stdbool.h>
 #include <stddef.h>
 
-#include "config.h"
-
 // like strncpy, except:
 //  - it copies at most n-1 chars
 //  - the dest string is nul-terminated
@@ -43,6 +43,11 @@ parse_integers(const char *s, const char sep, size_t max_items, long *out);
 bool
 parse_integer_with_suffix(const char *s, long *out);
 
+// search s in the list separated by sep
+// for example, strlist_contains("a,bc,def", ',', "bc") returns true
+bool
+strlist_contains(const char *list, char sep, const char *s);
+
 // return the index to truncate a UTF-8 string at a valid position
 size_t
 utf8_truncation_index(const char *utf8, size_t max_len);

app/src/util/thread.c

@@ -0,0 +1,160 @@
+#include "thread.h"
+
+#include <assert.h>
+#include <SDL2/SDL_thread.h>
+
+#include "log.h"
+
+bool
+sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
+                 void *userdata) {
+    SDL_Thread *sdl_thread = SDL_CreateThread(fn, name, userdata);
+    if (!sdl_thread) {
+        return false;
+    }
+
+    thread->thread = sdl_thread;
+    return true;
+}
+
+void
+sc_thread_join(sc_thread *thread, int *status) {
+    SDL_WaitThread(thread->thread, status);
+}
+
+bool
+sc_mutex_init(sc_mutex *mutex) {
+    SDL_mutex *sdl_mutex = SDL_CreateMutex();
+    if (!sdl_mutex) {
+        return false;
+    }
+
+    mutex->mutex = sdl_mutex;
+#ifndef NDEBUG
+    mutex->locker = 0;
+#endif
+    return true;
+}
+
+void
+sc_mutex_destroy(sc_mutex *mutex) {
+    SDL_DestroyMutex(mutex->mutex);
+}
+
+void
+sc_mutex_lock(sc_mutex *mutex) {
+    // SDL mutexes are recursive, but we don't want to use recursive mutexes
+    assert(!sc_mutex_held(mutex));
+    int r = SDL_LockMutex(mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not lock mutex: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#else
+    (void) r;
+#endif
+}
+
+void
+sc_mutex_unlock(sc_mutex *mutex) {
+#ifndef NDEBUG
+    assert(sc_mutex_held(mutex));
+    mutex->locker = 0;
+#endif
+    int r = SDL_UnlockMutex(mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not lock mutex: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+sc_thread_id
+sc_thread_get_id(void) {
+    return SDL_ThreadID();
+}
+
+#ifndef NDEBUG
+bool
+sc_mutex_held(struct sc_mutex *mutex) {
+    return mutex->locker == sc_thread_get_id();
+}
+#endif
+
+bool
+sc_cond_init(sc_cond *cond) {
+    SDL_cond *sdl_cond = SDL_CreateCond();
+    if (!sdl_cond) {
+        return false;
+    }
+
+    cond->cond = sdl_cond;
+    return true;
+}
+
+void
+sc_cond_destroy(sc_cond *cond) {
+    SDL_DestroyCond(cond->cond);
+}
+
+void
+sc_cond_wait(sc_cond *cond, sc_mutex *mutex) {
+    int r = SDL_CondWait(cond->cond, mutex->mutex);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not wait on condition: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#else
+    (void) r;
+#endif
+}
+
+bool
+sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms) {
+    int r = SDL_CondWaitTimeout(cond->cond, mutex->mutex, ms);
+#ifndef NDEBUG
+    if (r < 0) {
+        LOGC("Could not wait on condition with timeout: %s", SDL_GetError());
+        abort();
+    }
+
+    mutex->locker = sc_thread_get_id();
+#endif
+    assert(r == 0 || r == SDL_MUTEX_TIMEDOUT);
+    return r == 0;
+}
+
+void
+sc_cond_signal(sc_cond *cond) {
+    int r = SDL_CondSignal(cond->cond);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not signal a condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}
+
+void
+sc_cond_broadcast(sc_cond *cond) {
+    int r = SDL_CondBroadcast(cond->cond);
+#ifndef NDEBUG
+    if (r) {
+        LOGC("Could not broadcast a condition: %s", SDL_GetError());
+        abort();
+    }
+#else
+    (void) r;
+#endif
+}

app/src/util/thread.h

@@ -0,0 +1,81 @@
+#ifndef SC_THREAD_H
+#define SC_THREAD_H
+
+#include "common.h"
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/* Forward declarations */
+typedef struct SDL_Thread SDL_Thread;
+typedef struct SDL_mutex SDL_mutex;
+typedef struct SDL_cond SDL_cond;
+
+typedef int sc_thread_fn(void *);
+typedef unsigned int sc_thread_id;
+
+typedef struct sc_thread {
+    SDL_Thread *thread;
+} sc_thread;
+
+typedef struct sc_mutex {
+    SDL_mutex *mutex;
+#ifndef NDEBUG
+    sc_thread_id locker;
+#endif
+} sc_mutex;
+
+typedef struct sc_cond {
+    SDL_cond *cond;
+} sc_cond;
+
+bool
+sc_thread_create(sc_thread *thread, sc_thread_fn fn, const char *name,
+                 void *userdata);
+
+void
+sc_thread_join(sc_thread *thread, int *status);
+
+bool
+sc_mutex_init(sc_mutex *mutex);
+
+void
+sc_mutex_destroy(sc_mutex *mutex);
+
+void
+sc_mutex_lock(sc_mutex *mutex);
+
+void
+sc_mutex_unlock(sc_mutex *mutex);
+
+sc_thread_id
+sc_thread_get_id(void);
+
+#ifndef NDEBUG
+bool
+sc_mutex_held(struct sc_mutex *mutex);
+# define sc_mutex_assert(mutex) assert(sc_mutex_held(mutex))
+#else
+# define sc_mutex_assert(mutex)
+#endif
+
+bool
+sc_cond_init(sc_cond *cond);
+
+void
+sc_cond_destroy(sc_cond *cond);
+
+void
+sc_cond_wait(sc_cond *cond, sc_mutex *mutex);
+
+// return true on signaled, false on timeout
+bool
+sc_cond_timedwait(sc_cond *cond, sc_mutex *mutex, uint32_t ms);
+
+void
+sc_cond_signal(sc_cond *cond);
+
+void
+sc_cond_broadcast(sc_cond *cond);
+
+#endif

app/src/v4l2_sink.c

@@ -0,0 +1,342 @@
+#include "v4l2_sink.h"
+
+#include "util/log.h"
+#include "util/str_util.h"
+
+/** Downcast frame_sink to sc_v4l2_sink */
+#define DOWNCAST(SINK) container_of(SINK, struct sc_v4l2_sink, frame_sink)
+
+static const AVRational SCRCPY_TIME_BASE = {1, 1000000}; // timestamps in us
+
+static const AVOutputFormat *
+find_muxer(const char *name) {
+#ifdef SCRCPY_LAVF_HAS_NEW_MUXER_ITERATOR_API
+    void *opaque = NULL;
+#endif
+    const AVOutputFormat *oformat = NULL;
+    do {
+#ifdef SCRCPY_LAVF_HAS_NEW_MUXER_ITERATOR_API
+        oformat = av_muxer_iterate(&opaque);
+#else
+        oformat = av_oformat_next(oformat);
+#endif
+        // until null or containing the requested name
+    } while (oformat && !strlist_contains(oformat->name, ',', name));
+    return oformat;
+}
+
+static bool
+write_header(struct sc_v4l2_sink *vs, const AVPacket *packet) {
+    AVStream *ostream = vs->format_ctx->streams[0];
+
+    uint8_t *extradata = av_malloc(packet->size * sizeof(uint8_t));
+    if (!extradata) {
+        LOGC("Could not allocate extradata");
+        return false;
+    }
+
+    // copy the first packet to the extra data
+    memcpy(extradata, packet->data, packet->size);
+
+    ostream->codecpar->extradata = extradata;
+    ostream->codecpar->extradata_size = packet->size;
+
+    int ret = avformat_write_header(vs->format_ctx, NULL);
+    if (ret < 0) {
+        LOGE("Failed to write header to %s", vs->device_name);
+        return false;
+    }
+
+    return true;
+}
+
+static void
+rescale_packet(struct sc_v4l2_sink *vs, AVPacket *packet) {
+    AVStream *ostream = vs->format_ctx->streams[0];
+    av_packet_rescale_ts(packet, SCRCPY_TIME_BASE, ostream->time_base);
+}
+
+static bool
+write_packet(struct sc_v4l2_sink *vs, AVPacket *packet) {
+    if (!vs->header_written) {
+        bool ok = write_header(vs, packet);
+        if (!ok) {
+            return false;
+        }
+        vs->header_written = true;
+        return true;
+    }
+
+    rescale_packet(vs, packet);
+
+    bool ok = av_write_frame(vs->format_ctx, packet) >= 0;
+
+    // Failing to write the last frame is not very serious, no future frame may
+    // depend on it, so the resulting file will still be valid
+    (void) ok;
+
+    return true;
+}
+
+static bool
+encode_and_write_frame(struct sc_v4l2_sink *vs, const AVFrame *frame) {
+    int ret = avcodec_send_frame(vs->encoder_ctx, frame);
+    if (ret < 0 && ret != AVERROR(EAGAIN)) {
+        LOGE("Could not send v4l2 video frame: %d", ret);
+        return false;
+    }
+
+    AVPacket *packet = &vs->packet;
+    ret = avcodec_receive_packet(vs->encoder_ctx, packet);
+    if (ret == 0) {
+        // A packet was received
+
+        bool ok = write_packet(vs, packet);
+        av_packet_unref(packet);
+        if (!ok) {
+            LOGW("Could not send packet to v4l2 sink");
+            return false;
+        }
+    } else if (ret != AVERROR(EAGAIN)) {
+        LOGE("Could not receive v4l2 video packet: %d", ret);
+        return false;
+    }
+
+    return true;
+}
+
+static int
+run_v4l2_sink(void *data) {
+    struct sc_v4l2_sink *vs = data;
+
+    for (;;) {
+        sc_mutex_lock(&vs->mutex);
+
+        while (!vs->stopped && vs->vb.pending_frame_consumed) {
+            sc_cond_wait(&vs->cond, &vs->mutex);
+        }
+
+        if (vs->stopped) {
+            sc_mutex_unlock(&vs->mutex);
+            break;
+        }
+
+        sc_mutex_unlock(&vs->mutex);
+
+        video_buffer_consume(&vs->vb, vs->frame);
+        bool ok = encode_and_write_frame(vs, vs->frame);
+        av_frame_unref(vs->frame);
+        if (!ok) {
+            LOGE("Could not send frame to v4l2 sink");
+            break;
+        }
+    }
+
+    LOGD("V4l2 thread ended");
+
+    return 0;
+}
+
+static bool
+sc_v4l2_sink_open(struct sc_v4l2_sink *vs) {
+    bool ok = video_buffer_init(&vs->vb);
+    if (!ok) {
+        return false;
+    }
+
+    ok = sc_mutex_init(&vs->mutex);
+    if (!ok) {
+        LOGC("Could not create mutex");
+        goto error_video_buffer_destroy;
+    }
+
+    ok = sc_cond_init(&vs->cond);
+    if (!ok) {
+        LOGC("Could not create cond");
+        goto error_mutex_destroy;
+    }
+
+    // FIXME
+    const AVOutputFormat *format = find_muxer("video4linux2,v4l2");
+    if (!format) {
+        LOGE("Could not find v4l2 muxer");
+        goto error_cond_destroy;
+    }
+
+    const AVCodec *encoder = avcodec_find_encoder(AV_CODEC_ID_RAWVIDEO);
+    if (!encoder) {
+        LOGE("Raw video encoder not found");
+        return false;
+    }
+
+    vs->format_ctx = avformat_alloc_context();
+    if (!vs->format_ctx) {
+        LOGE("Could not allocate v4l2 output context");
+        return false;
+    }
+
+    // contrary to the deprecated API (av_oformat_next()), av_muxer_iterate()
+    // returns (on purpose) a pointer-to-const, but AVFormatContext.oformat
+    // still expects a pointer-to-non-const (it has not be updated accordingly)
+    // <https://github.com/FFmpeg/FFmpeg/commit/0694d8702421e7aff1340038559c438b61bb30dd>
+    vs->format_ctx->oformat = (AVOutputFormat *) format;
+    vs->format_ctx->url = strdup(vs->device_name);
+    if (!vs->format_ctx->url) {
+        LOGE("Could not strdup v4l2 device name");
+        goto error_avformat_free_context;
+        return false;
+    }
+
+    AVStream *ostream = avformat_new_stream(vs->format_ctx, encoder);
+    if (!ostream) {
+        LOGE("Could not allocate new v4l2 stream");
+        goto error_avformat_free_context;
+        return false;
+    }
+
+    ostream->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+    ostream->codecpar->codec_id = encoder->id;
+    ostream->codecpar->format = AV_PIX_FMT_YUV420P;
+    ostream->codecpar->width = vs->frame_size.width;
+    ostream->codecpar->height = vs->frame_size.height;
+
+    int ret = avio_open(&vs->format_ctx->pb, vs->device_name, AVIO_FLAG_WRITE);
+    if (ret < 0) {
+        LOGE("Failed to open output device: %s", vs->device_name);
+        // ostream will be cleaned up during context cleaning
+        goto error_avformat_free_context;
+    }
+
+    vs->encoder_ctx = avcodec_alloc_context3(encoder);
+    if (!vs->encoder_ctx) {
+        LOGC("Could not allocate codec context for v4l2");
+        goto error_avio_close;
+    }
+
+    vs->encoder_ctx->width = vs->frame_size.width;
+    vs->encoder_ctx->height = vs->frame_size.height;
+    vs->encoder_ctx->pix_fmt = AV_PIX_FMT_YUV420P;
+    vs->encoder_ctx->time_base.num = 1;
+    vs->encoder_ctx->time_base.den = 1;
+
+    if (avcodec_open2(vs->encoder_ctx, encoder, NULL) < 0) {
+        LOGE("Could not open codec for v4l2");
+        goto error_avcodec_free_context;
+    }
+
+    vs->frame = av_frame_alloc();
+    if (!vs->frame) {
+        LOGE("Could not create v4l2 frame");
+        goto error_avcodec_close;
+    }
+
+    LOGD("Starting v4l2 thread");
+    ok = sc_thread_create(&vs->thread, run_v4l2_sink, "v4l2", vs);
+    if (!ok) {
+        LOGC("Could not start v4l2 thread");
+        goto error_av_frame_free;
+    }
+
+    vs->header_written = false;
+    vs->stopped = false;
+
+    LOGI("v4l2 sink started to device: %s", vs->device_name);
+
+    return true;
+
+error_av_frame_free:
+    av_frame_free(&vs->frame);
+error_avcodec_close:
+    avcodec_close(vs->encoder_ctx);
+error_avcodec_free_context:
+    avcodec_free_context(&vs->encoder_ctx);
+error_avio_close:
+    avio_close(vs->format_ctx->pb);
+error_avformat_free_context:
+    avformat_free_context(vs->format_ctx);
+error_cond_destroy:
+    sc_cond_destroy(&vs->cond);
+error_mutex_destroy:
+    sc_mutex_destroy(&vs->mutex);
+error_video_buffer_destroy:
+    video_buffer_destroy(&vs->vb);
+
+    return false;
+}
+
+static void
+sc_v4l2_sink_close(struct sc_v4l2_sink *vs) {
+    sc_mutex_lock(&vs->mutex);
+    vs->stopped = true;
+    sc_cond_signal(&vs->cond);
+    sc_mutex_unlock(&vs->mutex);
+
+    sc_thread_join(&vs->thread, NULL);
+
+    av_frame_free(&vs->frame);
+    avcodec_close(vs->encoder_ctx);
+    avcodec_free_context(&vs->encoder_ctx);
+    avio_close(vs->format_ctx->pb);
+    avformat_free_context(vs->format_ctx);
+    sc_cond_destroy(&vs->cond);
+    sc_mutex_destroy(&vs->mutex);
+    video_buffer_destroy(&vs->vb);
+}
+
+static bool
+sc_v4l2_sink_push(struct sc_v4l2_sink *vs, const AVFrame *frame) {
+    bool ok = video_buffer_push(&vs->vb, frame, NULL);
+    if (!ok) {
+        return false;
+    }
+
+    // signal possible change of vs->vb.pending_frame_consumed
+    sc_cond_signal(&vs->cond);
+
+    return true;
+}
+
+static bool
+sc_v4l2_frame_sink_open(struct sc_frame_sink *sink) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    return sc_v4l2_sink_open(vs);
+}
+
+static void
+sc_v4l2_frame_sink_close(struct sc_frame_sink *sink) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    sc_v4l2_sink_close(vs);
+}
+
+static bool
+sc_v4l2_frame_sink_push(struct sc_frame_sink *sink, const AVFrame *frame) {
+    struct sc_v4l2_sink *vs = DOWNCAST(sink);
+    return sc_v4l2_sink_push(vs, frame);
+}
+
+bool
+sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
+                  struct size frame_size) {
+    vs->device_name = strdup(device_name);
+    if (!vs->device_name) {
+        LOGE("Could not strdup v4l2 device name");
+        return false;
+    }
+
+    vs->frame_size = frame_size;
+
+    static const struct sc_frame_sink_ops ops = {
+        .open = sc_v4l2_frame_sink_open,
+        .close = sc_v4l2_frame_sink_close,
+        .push = sc_v4l2_frame_sink_push,
+    };
+
+    vs->frame_sink.ops = &ops;
+
+    return true;
+}
+
+void
+sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs) {
+    free(vs->device_name);
+}

app/src/v4l2_sink.h

@@ -0,0 +1,39 @@
+#ifndef SC_V4L2_SINK_H
+#define SC_V4L2_SINK_H
+
+#include "common.h"
+
+#include "coords.h"
+#include "trait/frame_sink.h"
+#include "video_buffer.h"
+
+#include <libavformat/avformat.h>
+
+struct sc_v4l2_sink {
+    struct sc_frame_sink frame_sink; // frame sink trait
+
+    struct video_buffer vb;
+    AVFormatContext *format_ctx;
+    AVCodecContext *encoder_ctx;
+
+    char *device_name;
+    struct size frame_size;
+
+    sc_thread thread;
+    sc_mutex mutex;
+    sc_cond cond;
+    bool stopped;
+    bool header_written;
+
+    AVFrame *frame;
+    AVPacket packet;
+};
+
+bool
+sc_v4l2_sink_init(struct sc_v4l2_sink *vs, const char *device_name,
+                  struct size frame_size);
+
+void
+sc_v4l2_sink_destroy(struct sc_v4l2_sink *vs);
+
+#endif

app/src/video_buffer.c

@@ -1,113 +1,88 @@
 #include "video_buffer.h"
 
 #include <assert.h>
-#include <SDL2/SDL_mutex.h>
 #include <libavutil/avutil.h>
 #include <libavformat/avformat.h>
 
-#include "config.h"
-#include "util/lock.h"
 #include "util/log.h"
 
 bool
-video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
-                  bool render_expired_frames) {
-    vb->fps_counter = fps_counter;
-
-    if (!(vb->decoding_frame = av_frame_alloc())) {
-        goto error_0;
+video_buffer_init(struct video_buffer *vb) {
+    vb->pending_frame = av_frame_alloc();
+    if (!vb->pending_frame) {
+        return false;
     }
 
-    if (!(vb->rendering_frame = av_frame_alloc())) {
-        goto error_1;
+    vb->tmp_frame = av_frame_alloc();
+    if (!vb->tmp_frame) {
+        av_frame_free(&vb->pending_frame);
+        return false;
     }
 
-    if (!(vb->mutex = SDL_CreateMutex())) {
-        goto error_2;
+    bool ok = sc_mutex_init(&vb->mutex);
+    if (!ok) {
+        av_frame_free(&vb->pending_frame);
+        av_frame_free(&vb->tmp_frame);
+        return false;
     }
 
-    vb->render_expired_frames = render_expired_frames;
-    if (render_expired_frames) {
-        if (!(vb->rendering_frame_consumed_cond = SDL_CreateCond())) {
-            SDL_DestroyMutex(vb->mutex);
-            goto error_2;
-        }
-        // interrupted is not used if expired frames are not rendered
-        // since offering a frame will never block
-        vb->interrupted = false;
-    }
-
-    // there is initially no rendering frame, so consider it has already been
-    // consumed
-    vb->rendering_frame_consumed = true;
+    // there is initially no frame, so consider it has already been consumed
+    vb->pending_frame_consumed = true;
 
     return true;
-
-error_2:
-    av_frame_free(&vb->rendering_frame);
-error_1:
-    av_frame_free(&vb->decoding_frame);
-error_0:
-    return false;
 }
 
 void
 video_buffer_destroy(struct video_buffer *vb) {
-    if (vb->render_expired_frames) {
-        SDL_DestroyCond(vb->rendering_frame_consumed_cond);
-    }
-    SDL_DestroyMutex(vb->mutex);
-    av_frame_free(&vb->rendering_frame);
-    av_frame_free(&vb->decoding_frame);
+    sc_mutex_destroy(&vb->mutex);
+    av_frame_free(&vb->pending_frame);
+    av_frame_free(&vb->tmp_frame);
 }
 
-static void
-video_buffer_swap_frames(struct video_buffer *vb) {
-    AVFrame *tmp = vb->decoding_frame;
-    vb->decoding_frame = vb->rendering_frame;
-    vb->rendering_frame = tmp;
+static inline void
+swap_frames(AVFrame **lhs, AVFrame **rhs) {
+    AVFrame *tmp = *lhs;
+    *lhs = *rhs;
+    *rhs = tmp;
+}
+
+bool
+video_buffer_push(struct video_buffer *vb, const AVFrame *frame,
+                  bool *previous_frame_skipped) {
+    sc_mutex_lock(&vb->mutex);
+
+    // Use a temporary frame to preserve pending_frame in case of error.
+    // tmp_frame is an empty frame, no need to call av_frame_unref() beforehand.
+    int r = av_frame_ref(vb->tmp_frame, frame);
+    if (r) {
+        LOGE("Could not ref frame: %d", r);
+        return false;
+    }
+
+    // Now that av_frame_ref() succeeded, we can replace the previous
+    // pending_frame
+    swap_frames(&vb->pending_frame, &vb->tmp_frame);
+    av_frame_unref(vb->tmp_frame);
+
+    if (previous_frame_skipped) {
+        *previous_frame_skipped = !vb->pending_frame_consumed;
+    }
+    vb->pending_frame_consumed = false;
+
+    sc_mutex_unlock(&vb->mutex);
+
+    return true;
 }
 
 void
-video_buffer_offer_decoded_frame(struct video_buffer *vb,
-                                 bool *previous_frame_skipped) {
-    mutex_lock(vb->mutex);
-    if (vb->render_expired_frames) {
-        // wait for the current (expired) frame to be consumed
-        while (!vb->rendering_frame_consumed && !vb->interrupted) {
-            cond_wait(vb->rendering_frame_consumed_cond, vb->mutex);
-        }
-    } else if (!vb->rendering_frame_consumed) {
-        fps_counter_add_skipped_frame(vb->fps_counter);
-    }
+video_buffer_consume(struct video_buffer *vb, AVFrame *dst) {
+    sc_mutex_lock(&vb->mutex);
+    assert(!vb->pending_frame_consumed);
+    vb->pending_frame_consumed = true;
 
-    video_buffer_swap_frames(vb);
+    av_frame_move_ref(dst, vb->pending_frame);
+    // av_frame_move_ref() resets its source frame, so no need to call
+    // av_frame_unref()
 
-    *previous_frame_skipped = !vb->rendering_frame_consumed;
-    vb->rendering_frame_consumed = false;
-
-    mutex_unlock(vb->mutex);
-}
-
-const AVFrame *
-video_buffer_consume_rendered_frame(struct video_buffer *vb) {
-    assert(!vb->rendering_frame_consumed);
-    vb->rendering_frame_consumed = true;
-    fps_counter_add_rendered_frame(vb->fps_counter);
-    if (vb->render_expired_frames) {
-        // unblock video_buffer_offer_decoded_frame()
-        cond_signal(vb->rendering_frame_consumed_cond);
-    }
-    return vb->rendering_frame;
-}
-
-void
-video_buffer_interrupt(struct video_buffer *vb) {
-    if (vb->render_expired_frames) {
-        mutex_lock(vb->mutex);
-        vb->interrupted = true;
-        mutex_unlock(vb->mutex);
-        // wake up blocking wait
-        cond_signal(vb->rendering_frame_consumed_cond);
-    }
+    sc_mutex_unlock(&vb->mutex);
 }

app/src/video_buffer.h

@@ -1,49 +1,50 @@
 #ifndef VIDEO_BUFFER_H
 #define VIDEO_BUFFER_H
 
-#include <stdbool.h>
-#include <SDL2/SDL_mutex.h>
+#include "common.h"
+
+#include <stdbool.h>
 
-#include "config.h"
 #include "fps_counter.h"
+#include "util/thread.h"
 
 // forward declarations
 typedef struct AVFrame AVFrame;
 
+/**
+ * A video buffer holds 1 pending frame, which is the last frame received from
+ * the producer (typically, the decoder).
+ *
+ * If a pending frame has not been consumed when the producer pushes a new
+ * frame, then it is lost. The intent is to always provide access to the very
+ * last frame to minimize latency.
+ *
+ * The producer and the consumer typically do not live in the same thread.
+ * That's the reason why the callback on_frame_available() does not provide the
+ * frame as parameter: the consumer might post an event to its own thread to
+ * retrieve the pending frame from there, and that frame may have changed since
+ * the callback if producer pushed a new one in between.
+ */
+
 struct video_buffer {
-    AVFrame *decoding_frame;
-    AVFrame *rendering_frame;
-    SDL_mutex *mutex;
-    bool render_expired_frames;
-    bool interrupted;
-    SDL_cond *rendering_frame_consumed_cond;
-    bool rendering_frame_consumed;
-    struct fps_counter *fps_counter;
+    AVFrame *pending_frame;
+    AVFrame *tmp_frame; // To preserve the pending frame on error
+
+    sc_mutex mutex;
+
+    bool pending_frame_consumed;
 };
 
 bool
-video_buffer_init(struct video_buffer *vb, struct fps_counter *fps_counter,
-                  bool render_expired_frames);
+video_buffer_init(struct video_buffer *vb);
 
 void
 video_buffer_destroy(struct video_buffer *vb);
 
-// set the decoded frame as ready for rendering
-// this function locks frames->mutex during its execution
-// the output flag is set to report whether the previous frame has been skipped
-void
-video_buffer_offer_decoded_frame(struct video_buffer *vb,
-                                 bool *previous_frame_skipped);
+bool
+video_buffer_push(struct video_buffer *vb, const AVFrame *frame, bool *skipped);
 
-// mark the rendering frame as consumed and return it
-// MUST be called with frames->mutex locked!!!
-// the caller is expected to render the returned frame to some texture before
-// unlocking frames->mutex
-const AVFrame *
-video_buffer_consume_rendered_frame(struct video_buffer *vb);
-
-// wake up and avoid any blocking call
 void
-video_buffer_interrupt(struct video_buffer *vb);
+video_buffer_consume(struct video_buffer *vb, AVFrame *dst);
 
 #endif

app/tests/test_buffer_util.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 
 #include "util/buffer_util.h"

app/tests/test_cbuf.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 

app/tests/test_cli.c

@@ -1,8 +1,9 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 
 #include "cli.h"
-#include "common.h"
 #include "scrcpy.h"
 
 static void test_flag_version(void) {
@@ -57,7 +58,6 @@ static void test_options(void) {
         "--push-target", "/sdcard/Movies",
         "--record", "file",
         "--record-format", "mkv",
-        "--render-expired-frames",
         "--serial", "0123456789abcdef",
         "--show-touches",
         "--turn-screen-off",
@@ -86,7 +86,6 @@ static void test_options(void) {
     assert(!strcmp(opts->push_target, "/sdcard/Movies"));
     assert(!strcmp(opts->record_filename, "file"));
     assert(opts->record_format == SC_RECORD_FORMAT_MKV);
-    assert(opts->render_expired_frames);
     assert(!strcmp(opts->serial, "0123456789abcdef"));
     assert(opts->show_touches);
     assert(opts->turn_screen_off);

app/tests/test_control_msg_serialize.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 
@@ -15,7 +17,7 @@ static void test_serialize_inject_keycode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 14);
 
     const unsigned char expected[] = {
@@ -37,7 +39,7 @@ static void test_serialize_inject_text(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 18);
 
     const unsigned char expected[] = {
@@ -57,7 +59,7 @@ static void test_serialize_inject_text_long(void) {
     msg.inject_text.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
 
     unsigned char expected[5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH];
@@ -93,7 +95,7 @@ static void test_serialize_inject_touch_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 28);
 
     const unsigned char expected[] = {
@@ -128,7 +130,7 @@ static void test_serialize_inject_scroll_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 21);
 
     const unsigned char expected[] = {
@@ -144,14 +146,18 @@ static void test_serialize_inject_scroll_event(void) {
 static void test_serialize_back_or_screen_on(void) {
     struct control_msg msg = {
         .type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        .back_or_screen_on = {
+            .action = AKEY_EVENT_ACTION_UP,
+        },
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
-    assert(size == 1);
+    size_t size = control_msg_serialize(&msg, buf);
+    assert(size == 2);
 
     const unsigned char expected[] = {
         CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
+        0x01, // AKEY_EVENT_ACTION_UP
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
@@ -162,7 +168,7 @@ static void test_serialize_expand_notification_panel(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -171,17 +177,32 @@ static void test_serialize_expand_notification_panel(void) {
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
 
-static void test_serialize_collapse_notification_panel(void) {
+static void test_serialize_expand_settings_panel(void) {
     struct control_msg msg = {
-        .type = CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+        .type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
-        CONTROL_MSG_TYPE_COLLAPSE_NOTIFICATION_PANEL,
+        CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
+    };
+    assert(!memcmp(buf, expected, sizeof(expected)));
+}
+
+static void test_serialize_collapse_panels(void) {
+    struct control_msg msg = {
+        .type = CONTROL_MSG_TYPE_COLLAPSE_PANELS,
+    };
+
+    unsigned char buf[CONTROL_MSG_MAX_SIZE];
+    size_t size = control_msg_serialize(&msg, buf);
+    assert(size == 1);
+
+    const unsigned char expected[] = {
+        CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     };
     assert(!memcmp(buf, expected, sizeof(expected)));
 }
@@ -192,7 +213,7 @@ static void test_serialize_get_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -211,7 +232,7 @@ static void test_serialize_set_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 19);
 
     const unsigned char expected[] = {
@@ -232,7 +253,7 @@ static void test_serialize_set_screen_power_mode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -248,7 +269,7 @@ static void test_serialize_rotate_device(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    int size = control_msg_serialize(&msg, buf);
+    size_t size = control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -268,7 +289,8 @@ int main(int argc, char *argv[]) {
     test_serialize_inject_scroll_event();
     test_serialize_back_or_screen_on();
     test_serialize_expand_notification_panel();
-    test_serialize_collapse_notification_panel();
+    test_serialize_expand_settings_panel();
+    test_serialize_collapse_panels();
     test_serialize_get_clipboard();
     test_serialize_set_clipboard();
     test_serialize_set_screen_power_mode();

app/tests/test_device_msg_deserialize.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 #include <string.h>
 

app/tests/test_queue.c

@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <assert.h>
 
 #include "util/queue.h"

app/tests/test_strutil.c

@@ -1,8 +1,9 @@
+#include "common.h"
+
 #include <assert.h>
 #include <limits.h>
 #include <stdio.h>
 #include <string.h>
-#include <SDL2/SDL.h>
 
 #include "util/str_util.h"
 
@@ -136,7 +137,7 @@ static void test_strquote(void) {
     // add '"' at the beginning and the end
     assert(!strcmp("\"abcde\"", out));
 
-    SDL_free(out);
+    free(out);
 }
 
 static void test_utf8_truncate(void) {
@@ -286,6 +287,18 @@ static void test_parse_integer_with_suffix(void) {
     assert(!ok);
 }
 
+static void test_strlist_contains(void) {
+    assert(strlist_contains("a,bc,def", ',', "bc"));
+    assert(!strlist_contains("a,bc,def", ',', "b"));
+    assert(strlist_contains("", ',', ""));
+    assert(strlist_contains("abc,", ',', ""));
+    assert(strlist_contains(",abc", ',', ""));
+    assert(strlist_contains("abc,,def", ',', ""));
+    assert(!strlist_contains("abc", ',', ""));
+    assert(strlist_contains(",,|x", '|', ",,"));
+    assert(strlist_contains("xyz", '\0', "xyz"));
+}
+
 int main(int argc, char *argv[]) {
     (void) argc;
     (void) argv;
@@ -303,5 +316,6 @@ int main(int argc, char *argv[]) {
     test_parse_integer();
     test_parse_integers();
     test_parse_integer_with_suffix();
+    test_strlist_contains();
     return 0;
 }

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.2'
+        classpath 'com.android.tools.build:gradle:4.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -19,6 +19,9 @@ allprojects {
         google()
         jcenter()
     }
+    tasks.withType(JavaCompile) {
+        options.compilerArgs << "-Xlint:deprecation"
+    }
 }
 
 task clean(type: Delete) {

cross_win32.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = '/usr/bin/i686-w64-mingw32-gcc'
-cpp = '/usr/bin/i686-w64-mingw32-g++'
-ar = '/usr/bin/i686-w64-mingw32-ar'
-strip = '/usr/bin/i686-w64-mingw32-strip'
-pkgconfig = '/usr/bin/i686-w64-mingw32-pkg-config'
+c = 'i686-w64-mingw32-gcc'
+cpp = 'i686-w64-mingw32-g++'
+ar = 'i686-w64-mingw32-ar'
+strip = 'i686-w64-mingw32-strip'
+pkgconfig = 'i686-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win32-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win32-dev'
-prebuilt_sdl2 = 'SDL2-2.0.12/i686-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.14/i686-w64-mingw32'

cross_win64.txt

@@ -2,11 +2,11 @@
 
 [binaries]
 name = 'mingw'
-c = '/usr/bin/x86_64-w64-mingw32-gcc'
-cpp = '/usr/bin/x86_64-w64-mingw32-g++'
-ar = '/usr/bin/x86_64-w64-mingw32-ar'
-strip = '/usr/bin/x86_64-w64-mingw32-strip'
-pkgconfig = '/usr/bin/x86_64-w64-mingw32-pkg-config'
+c = 'x86_64-w64-mingw32-gcc'
+cpp = 'x86_64-w64-mingw32-g++'
+ar = 'x86_64-w64-mingw32-ar'
+strip = 'x86_64-w64-mingw32-strip'
+pkgconfig = 'x86_64-w64-mingw32-pkg-config'
 
 [host_machine]
 system = 'windows'
@@ -17,4 +17,4 @@ endian = 'little'
 [properties]
 prebuilt_ffmpeg_shared = 'ffmpeg-4.3.1-win64-shared'
 prebuilt_ffmpeg_dev = 'ffmpeg-4.3.1-win64-dev'
-prebuilt_sdl2 = 'SDL2-2.0.12/x86_64-w64-mingw32'
+prebuilt_sdl2 = 'SDL2-2.0.14/x86_64-w64-mingw32'

data/scrcpy-console.bat

@@ -0,0 +1,4 @@
+@echo off
+scrcpy.exe %*
+:: if the exit code is >= 1, then pause
+if errorlevel 1 pause

data/scrcpy-noconsole.vbs

@@ -0,0 +1,7 @@
+strCommand = "cmd /c scrcpy.exe"
+
+For Each Arg In WScript.Arguments
+    strCommand = strCommand & " """ & replace(Arg, """", """""""""") & """"
+Next
+
+CreateObject("Wscript.Shell").Run strCommand, 0, false

meson.build

@@ -1,9 +1,10 @@
 project('scrcpy', 'c',
-        version: '1.15',
+        version: '1.17',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',
             'warning_level=2',
+            'b_ndebug=if-release',
         ])
 
 if get_option('compile_app')

meson_options.txt

@@ -1,9 +1,7 @@
 option('compile_app', type: 'boolean', value: true, description: 'Build the client')
 option('compile_server', type: 'boolean', value: true, description: 'Build the server')
 option('crossbuild_windows', type: 'boolean', value: false, description: 'Build for Windows from Linux')
-option('windows_noconsole', type: 'boolean', value: false, description: 'Disable console on Windows (pass -mwindows flag)')
 option('prebuilt_server', type: 'string', description: 'Path of the prebuilt server')
 option('portable', type: 'boolean', value: false, description: 'Use scrcpy-server from the same directory as the scrcpy executable')
-option('hidpi_support', type: 'boolean', value: true, description: 'Enable High DPI support')
 option('server_debugger', type: 'boolean', value: false, description: 'Run a server debugger and wait for a client to be attached')
 option('server_debugger_method', type: 'combo', choices: ['old', 'new'], value: 'new', description: 'Select the debugger method (Android < 9: "old", Android >= 9: "new")')

prebuilt-deps/Makefile

@@ -10,31 +10,31 @@ prepare-win32: prepare-sdl2 prepare-ffmpeg-shared-win32 prepare-ffmpeg-dev-win32
 prepare-win64: prepare-sdl2 prepare-ffmpeg-shared-win64 prepare-ffmpeg-dev-win64 prepare-adb
 
 prepare-ffmpeg-shared-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.3.1-win32-shared.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-shared.zip \
 		357af9901a456f4dcbacd107e83a934d344c9cb07ddad8aaf80612eeab7d26d2 \
 		ffmpeg-4.3.1-win32-shared
 
 prepare-ffmpeg-dev-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.3.1-win32-dev.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win32-dev.zip \
 		230efb08e9bcf225bd474da29676c70e591fc94d8790a740ca801408fddcb78b \
 		ffmpeg-4.3.1-win32-dev
 
 prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.3.1-win64-shared.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-shared.zip \
 		dd29b7f92f48dead4dd940492c7509138c0f99db445076d0a597007298a79940 \
 		ffmpeg-4.3.1-win64-shared
 
 prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.3.1-win64-dev.zip \
+	@./prepare-dep https://github.com/Genymobile/scrcpy/releases/download/v1.16/ffmpeg-4.3.1-win64-dev.zip \
 		2e8038242cf8e1bd095c2978f196ff0462b122cc6ef7e74626a6af15459d8b81 \
 		ffmpeg-4.3.1-win64-dev
 
 prepare-sdl2:
-	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.12-mingw.tar.gz \
-		e614a60f797e35ef9f3f96aef3dc6a1d786de3cc7ca6216f97e435c0b6aafc46 \
-		SDL2-2.0.12
+	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.14-mingw.tar.gz \
+		405eaff3eb18f2e08fe669ef9e63bc9a8710b7d343756f238619761e9b60407d \
+		SDL2-2.0.14
 
 prepare-adb:
-	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r30.0.4-windows.zip \
-		413182fff6c5957911e231b9e97e6be4fc6a539035e3dfb580b5c54bd5950fee \
+	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r30.0.5-windows.zip \
+		549ba2bdc31f335eb8a504f005f77606a479cc216d6b64a3e8b64c780003661f \
 		platform-tools

prebuilt-deps/prepare-dep

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 url="$1"
 sum="$2"

release.mk

@@ -9,21 +9,20 @@
 # the server to the device.
 
 .PHONY: default clean \
+	test \
 	build-server \
 	prepare-deps-win32 prepare-deps-win64 \
-	build-win32 build-win32-noconsole \
-	build-win64 build-win64-noconsole \
+	build-win32 build-win64 \
 	dist-win32 dist-win64 \
 	zip-win32 zip-win64 \
-	sums release
+	release
 
 GRADLE ?= ./gradlew
 
+TEST_BUILD_DIR := build-test
 SERVER_BUILD_DIR := build-server
 WIN32_BUILD_DIR := build-win32
-WIN32_NOCONSOLE_BUILD_DIR := build-win32-noconsole
 WIN64_BUILD_DIR := build-win64
-WIN64_NOCONSOLE_BUILD_DIR := build-win64-noconsole
 
 DIST := dist
 WIN32_TARGET_DIR := scrcpy-win32
@@ -33,19 +32,35 @@ VERSION := $(shell git describe --tags --always)
 WIN32_TARGET := $(WIN32_TARGET_DIR)-$(VERSION).zip
 WIN64_TARGET := $(WIN64_TARGET_DIR)-$(VERSION).zip
 
-release: clean zip-win32 zip-win64 sums
-	@echo "Windows archives generated in $(DIST)/"
+RELEASE_DIR := release-$(VERSION)
+
+release: clean test build-server zip-win32 zip-win64
+	mkdir -p "$(RELEASE_DIR)"
+	cp "$(SERVER_BUILD_DIR)/server/scrcpy-server" \
+		"$(RELEASE_DIR)/scrcpy-server-$(VERSION)"
+	cp "$(DIST)/$(WIN32_TARGET)" "$(RELEASE_DIR)"
+	cp "$(DIST)/$(WIN64_TARGET)" "$(RELEASE_DIR)"
+	cd "$(RELEASE_DIR)" && \
+		sha256sum "scrcpy-server-$(VERSION)" \
+			"scrcpy-win32-$(VERSION).zip" \
+			"scrcpy-win64-$(VERSION).zip" > SHA256SUMS.txt
+	@echo "Release generated in $(RELEASE_DIR)/"
 
 clean:
 	$(GRADLE) clean
-	rm -rf "$(SERVER_BUILD_DIR)" "$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)" \
-		   "$(WIN32_NOCONSOLE_BUILD_DIR)" "$(WIN64_NOCONSOLE_BUILD_DIR)" "$(DIST)"
+	rm -rf "$(DIST)" "$(TEST_BUILD_DIR)" "$(SERVER_BUILD_DIR)" \
+		"$(WIN32_BUILD_DIR)" "$(WIN64_BUILD_DIR)"
+
+test:
+	[ -d "$(TEST_BUILD_DIR)" ] || ( mkdir "$(TEST_BUILD_DIR)" && \
+		meson "$(TEST_BUILD_DIR)" -Db_sanitize=address )
+	ninja -C "$(TEST_BUILD_DIR)"
+	$(GRADLE) -p server check
 
 build-server:
 	[ -d "$(SERVER_BUILD_DIR)" ] || ( mkdir "$(SERVER_BUILD_DIR)" && \
-		meson "$(SERVER_BUILD_DIR)" \
-			--buildtype release -Dcompile_app=false )
-		ninja -C "$(SERVER_BUILD_DIR)"
+		meson "$(SERVER_BUILD_DIR)" --buildtype release -Dcompile_app=false )
+	ninja -C "$(SERVER_BUILD_DIR)"
 
 prepare-deps-win32:
 	-$(MAKE) -C prebuilt-deps prepare-win32
@@ -60,17 +75,6 @@ build-win32: prepare-deps-win32
 			-Dportable=true )
 	ninja -C "$(WIN32_BUILD_DIR)"
 
-build-win32-noconsole: prepare-deps-win32
-	[ -d "$(WIN32_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN32_NOCONSOLE_BUILD_DIR)" && \
-		meson "$(WIN32_NOCONSOLE_BUILD_DIR)" \
-			--cross-file cross_win32.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dwindows_noconsole=true \
-			-Dportable=true )
-	ninja -C "$(WIN32_NOCONSOLE_BUILD_DIR)"
-
 prepare-deps-win64:
 	-$(MAKE) -C prebuilt-deps prepare-win64
 
@@ -84,22 +88,12 @@ build-win64: prepare-deps-win64
 			-Dportable=true )
 	ninja -C "$(WIN64_BUILD_DIR)"
 
-build-win64-noconsole: prepare-deps-win64
-	[ -d "$(WIN64_NOCONSOLE_BUILD_DIR)" ] || ( mkdir "$(WIN64_NOCONSOLE_BUILD_DIR)" && \
-		meson "$(WIN64_NOCONSOLE_BUILD_DIR)" \
-			--cross-file cross_win64.txt \
-			--buildtype release --strip -Db_lto=true \
-			-Dcrossbuild_windows=true \
-			-Dcompile_server=false \
-			-Dwindows_noconsole=true \
-			-Dportable=true )
-	ninja -C "$(WIN64_NOCONSOLE_BUILD_DIR)"
-
-dist-win32: build-server build-win32 build-win32-noconsole
+dist-win32: build-server build-win32
 	mkdir -p "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp "$(WIN32_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp "$(WIN32_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
+	cp data/scrcpy-console.bat "$(DIST)/$(WIN32_TARGET_DIR)"
+	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN32_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
@@ -108,13 +102,14 @@ dist-win32: build-server build-win32 build-win32-noconsole
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.12/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.14/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 
-dist-win64: build-server build-win64 build-win64-noconsole
+dist-win64: build-server build-win64
 	mkdir -p "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp "$(SERVER_BUILD_DIR)"/server/scrcpy-server "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp "$(WIN64_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp "$(WIN64_NOCONSOLE_BUILD_DIR)"/app/scrcpy.exe "$(DIST)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
+	cp data/scrcpy-console.bat "$(DIST)/$(WIN64_TARGET_DIR)"
+	cp data/scrcpy-noconsole.vbs "$(DIST)/$(WIN64_TARGET_DIR)"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/ffmpeg-4.3.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
@@ -123,7 +118,7 @@ dist-win64: build-server build-win64 build-win64-noconsole
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.12/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.14/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 
 zip-win32: dist-win32
 	cd "$(DIST)/$(WIN32_TARGET_DIR)"; \
@@ -132,7 +127,3 @@ zip-win32: dist-win32
 zip-win64: dist-win64
 	cd "$(DIST)/$(WIN64_TARGET_DIR)"; \
 		zip -r "../$(WIN64_TARGET)" .
-
-sums:
-	cd "$(DIST)"; \
-		sha256sum *.zip > SHA256SUMS.txt

release.sh

@@ -1,44 +1,2 @@
 #!/bin/bash
-set -e
-
-# test locally
-TESTDIR=build_test
-rm -rf "$TESTDIR"
-# run client tests with ASAN enabled
-meson "$TESTDIR" -Db_sanitize=address
-ninja -C"$TESTDIR" test
-
-# test server
-GRADLE=${GRADLE:-./gradlew}
-$GRADLE -p server check
-
-BUILDDIR=build_release
-rm -rf "$BUILDDIR"
-meson "$BUILDDIR" --buildtype release --strip -Db_lto=true
-cd "$BUILDDIR"
-ninja
-cd -
-
-# build Windows releases
-make -f Makefile.CrossWindows
-
-# the generated server must be the same everywhere
-cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win32/scrcpy-server
-cmp "$BUILDDIR/server/scrcpy-server" dist/scrcpy-win64/scrcpy-server
-
-# get version name
-TAG=$(git describe --tags --always)
-
-# create release directory
-mkdir -p "release-$TAG"
-cp "$BUILDDIR/server/scrcpy-server" "release-$TAG/scrcpy-server-$TAG"
-cp "dist/scrcpy-win32-$TAG.zip" "release-$TAG/"
-cp "dist/scrcpy-win64-$TAG.zip" "release-$TAG/"
-
-# generate checksums
-cd "release-$TAG"
-sha256sum "scrcpy-server-$TAG" \
-          "scrcpy-win32-$TAG.zip" \
-          "scrcpy-win64-$TAG.zip" > SHA256SUMS.txt
-
-echo "Release generated in release-$TAG/"
+make -f release.mk

run

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Run scrcpy generated in the specified BUILDDIR.
 #
 # This provides the same feature as "ninja run", except that it is possible to

scripts/run-scrcpy.sh

@@ -1,2 +1,2 @@
-#!/bin/bash
+#!/usr/bin/env bash
 SCRCPY_SERVER_PATH="$MESON_BUILD_ROOT/server/scrcpy-server" "$MESON_BUILD_ROOT/app/scrcpy"

server/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
-        targetSdkVersion 29
-        versionCode 17
-        versionName "1.15"
+        targetSdkVersion 30
+        versionCode 20
+        versionName "1.17"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
@@ -20,7 +20,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    testImplementation 'junit:junit:4.12'
+    testImplementation 'junit:junit:4.13'
 }
 
 apply from: "$project.rootDir/config/android-checkstyle.gradle"

server/build_without_gradle.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # This script generates the scrcpy binary "manually" (without gradle).
 #
@@ -12,10 +12,10 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.15
+SCRCPY_VERSION_NAME=1.17
 
-PLATFORM=${ANDROID_PLATFORM:-29}
-BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-29.0.2}
+PLATFORM=${ANDROID_PLATFORM:-30}
+BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-30.0.0}
 
 BUILD_DIR="$(realpath ${BUILD_DIR:-build_manual})"
 CLASSES_DIR="$BUILD_DIR/classes"

server/scripts/build-wrapper.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Wrapper script to invoke gradle from meson
 set -e
 

server/src/main/java/com/genymobile/scrcpy/CleanUp.java

@@ -3,6 +3,10 @@ package com.genymobile.scrcpy;
 import com.genymobile.scrcpy.wrappers.ContentProvider;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.Base64;
+
 import java.io.File;
 import java.io.IOException;
 
@@ -15,23 +19,123 @@ public final class CleanUp {
 
     public static final String SERVER_PATH = "/data/local/tmp/scrcpy-server.jar";
 
+    // A simple struct to be passed from the main process to the cleanup process
+    public static class Config implements Parcelable {
+
+        public static final Creator<Config> CREATOR = new Creator<Config>() {
+            @Override
+            public Config createFromParcel(Parcel in) {
+                return new Config(in);
+            }
+
+            @Override
+            public Config[] newArray(int size) {
+                return new Config[size];
+            }
+        };
+
+        private static final int FLAG_DISABLE_SHOW_TOUCHES = 1;
+        private static final int FLAG_RESTORE_NORMAL_POWER_MODE = 2;
+        private static final int FLAG_POWER_OFF_SCREEN = 4;
+
+        private int displayId;
+
+        // Restore the value (between 0 and 7), -1 to not restore
+        // <https://developer.android.com/reference/android/provider/Settings.Global#STAY_ON_WHILE_PLUGGED_IN>
+        private int restoreStayOn = -1;
+
+        private boolean disableShowTouches;
+        private boolean restoreNormalPowerMode;
+        private boolean powerOffScreen;
+
+        public Config() {
+            // Default constructor, the fields are initialized by CleanUp.configure()
+        }
+
+        protected Config(Parcel in) {
+            displayId = in.readInt();
+            restoreStayOn = in.readInt();
+            byte options = in.readByte();
+            disableShowTouches = (options & FLAG_DISABLE_SHOW_TOUCHES) != 0;
+            restoreNormalPowerMode = (options & FLAG_RESTORE_NORMAL_POWER_MODE) != 0;
+            powerOffScreen = (options & FLAG_POWER_OFF_SCREEN) != 0;
+        }
+
+        @Override
+        public void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(displayId);
+            dest.writeInt(restoreStayOn);
+            byte options = 0;
+            if (disableShowTouches) {
+                options |= FLAG_DISABLE_SHOW_TOUCHES;
+            }
+            if (restoreNormalPowerMode) {
+                options |= FLAG_RESTORE_NORMAL_POWER_MODE;
+            }
+            if (powerOffScreen) {
+                options |= FLAG_POWER_OFF_SCREEN;
+            }
+            dest.writeByte(options);
+        }
+
+        private boolean hasWork() {
+            return disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode || powerOffScreen;
+        }
+
+        @Override
+        public int describeContents() {
+            return 0;
+        }
+
+        byte[] serialize() {
+            Parcel parcel = Parcel.obtain();
+            writeToParcel(parcel, 0);
+            byte[] bytes = parcel.marshall();
+            parcel.recycle();
+            return bytes;
+        }
+
+        static Config deserialize(byte[] bytes) {
+            Parcel parcel = Parcel.obtain();
+            parcel.unmarshall(bytes, 0, bytes.length);
+            parcel.setDataPosition(0);
+            return CREATOR.createFromParcel(parcel);
+        }
+
+        static Config fromBase64(String base64) {
+            byte[] bytes = Base64.decode(base64, Base64.NO_WRAP);
+            return deserialize(bytes);
+        }
+
+        String toBase64() {
+            byte[] bytes = serialize();
+            return Base64.encodeToString(bytes, Base64.NO_WRAP);
+        }
+    }
+
     private CleanUp() {
         // not instantiable
     }
 
-    public static void configure(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
-        boolean needProcess = disableShowTouches || restoreStayOn != -1 || restoreNormalPowerMode;
-        if (needProcess) {
-            startProcess(disableShowTouches, restoreStayOn, restoreNormalPowerMode);
+    public static void configure(int displayId, int restoreStayOn, boolean disableShowTouches, boolean restoreNormalPowerMode, boolean powerOffScreen)
+            throws IOException {
+        Config config = new Config();
+        config.displayId = displayId;
+        config.disableShowTouches = disableShowTouches;
+        config.restoreStayOn = restoreStayOn;
+        config.restoreNormalPowerMode = restoreNormalPowerMode;
+        config.powerOffScreen = powerOffScreen;
+
+        if (config.hasWork()) {
+            startProcess(config);
         } else {
             // There is no additional clean up to do when scrcpy dies
             unlinkSelf();
         }
     }
 
-    private static void startProcess(boolean disableShowTouches, int restoreStayOn, boolean restoreNormalPowerMode) throws IOException {
-        String[] cmd = {"app_process", "/", CleanUp.class.getName(), String.valueOf(disableShowTouches), String.valueOf(
-                restoreStayOn), String.valueOf(restoreNormalPowerMode)};
+    private static void startProcess(Config config) throws IOException {
+        String[] cmd = {"app_process", "/", CleanUp.class.getName(), config.toBase64()};
 
         ProcessBuilder builder = new ProcessBuilder(cmd);
         builder.environment().put("CLASSPATH", SERVER_PATH);
@@ -58,27 +162,30 @@ public final class CleanUp {
 
         Ln.i("Cleaning up");
 
-        boolean disableShowTouches = Boolean.parseBoolean(args[0]);
-        int restoreStayOn = Integer.parseInt(args[1]);
-        boolean restoreNormalPowerMode = Boolean.parseBoolean(args[2]);
+        Config config = Config.fromBase64(args[0]);
 
-        if (disableShowTouches || restoreStayOn != -1) {
+        if (config.disableShowTouches || config.restoreStayOn != -1) {
             ServiceManager serviceManager = new ServiceManager();
             try (ContentProvider settings = serviceManager.getActivityManager().createSettingsProvider()) {
-                if (disableShowTouches) {
+                if (config.disableShowTouches) {
                     Ln.i("Disabling \"show touches\"");
                     settings.putValue(ContentProvider.TABLE_SYSTEM, "show_touches", "0");
                 }
-                if (restoreStayOn != -1) {
+                if (config.restoreStayOn != -1) {
                     Ln.i("Restoring \"stay awake\"");
-                    settings.putValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(restoreStayOn));
+                    settings.putValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(config.restoreStayOn));
                 }
             }
         }
 
-        if (restoreNormalPowerMode) {
-            Ln.i("Restoring normal power mode");
-            Device.setScreenPowerMode(Device.POWER_MODE_NORMAL);
+        if (Device.isScreenOn()) {
+            if (config.powerOffScreen) {
+                Ln.i("Power off screen");
+                Device.powerOffScreen(config.displayId);
+            } else if (config.restoreNormalPowerMode) {
+                Ln.i("Restoring normal power mode");
+                Device.setScreenPowerMode(Device.POWER_MODE_NORMAL);
+            }
         }
     }
 }