Use $ANDROID_SERIAL if no selector is specified

Like adb, read the ANDROID_SERIAL environment variable to select a
device by serial if no explicit selection (-s, -d, -e or --tcpip=<addr>)
is provided via the command line.

Fixes #3111 <https://github.com/Genymobile/scrcpy/issues/3111>
PR #3113 <https://github.com/Genymobile/scrcpy/pull/3113>

BUILD.md

@@ -272,10 +272,10 @@ install` must be run as root)._
 
 #### Option 2: Use prebuilt server
 
- - [`scrcpy-server-v1.22`][direct-scrcpy-server]  
-   _(SHA-256: c05d273eec7533c0e106282e0254cf04e7f5e8f0c2920ca39448865fab2a419b)_
+ - [`scrcpy-server-v1.23`][direct-scrcpy-server]  
+   _(SHA-256: 2a913fd47478c0b306fca507cb0beb625e49a19ff9fc7ab904e36ef5b9fe7e68)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.22/scrcpy-server-v1.22
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.23/scrcpy-server-v1.23
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

FAQ.md

@@ -4,23 +4,16 @@
 
 Here are the common reported problems and their status.
 
+If you encounter any error, the first step is to upgrade to the latest version.
+
 
 ## `adb` issues
 
 `scrcpy` execute `adb` commands to initialize the connection with the device. If
 `adb` fails, then scrcpy will not work.
 
-In that case, it will print this error:
-
->     ERROR: "adb get-serialno" returned with value 1
-
 This is typically not a bug in _scrcpy_, but a problem in your environment.
 
-To find out the cause, execute:
-
-```bash
-adb devices
-```
 
 ### `adb` not found
 
@@ -30,13 +23,30 @@ On Windows, the current directory is in your `PATH`, and `adb.exe` is included
 in the release, so it should work out-of-the-box.
 
 
+### Device not detected
+
+>     ERROR: Could not find any ADB device
+
+Check that you correctly enabled [adb debugging][enable-adb].
+
+Your device must be detected by `adb`:
+
+```
+adb devices
+```
+
+If your device is not detected, you may need some [drivers] (on Windows). There is a separate [USB driver for Google devices][google-usb-driver].
+
+[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
+[drivers]: https://developer.android.com/studio/run/oem-usb.html
+[google-usb-driver]: https://developer.android.com/studio/run/win-usb
+
+
 ### Device unauthorized
 
-
->     error: device unauthorized.
->     This adb server's $ADB_VENDOR_KEYS is not set
->     Try 'adb kill-server' if that seems wrong.
->     Otherwise check for a confirmation dialog on your device.
+>    ERROR: Device is unauthorized:
+>    ERROR:     -->   (usb)  0123456789abcdef          unauthorized
+>    ERROR: A popup should open on the device to request authorization.
 
 When connecting, a popup should open on the device. You must authorize USB
 debugging.
@@ -46,29 +56,27 @@ If it does not open, check [stackoverflow][device-unauthorized].
 [device-unauthorized]: https://stackoverflow.com/questions/23081263/adb-android-device-unauthorized
 
 
-### Device not detected
-
->     error: no devices/emulators found
-
-Check that you correctly enabled [adb debugging][enable-adb].
-
-If your device is not detected, you may need some [drivers] (on Windows). There is a separate [USB driver for Google devices][google-usb-driver].
-
-[enable-adb]: https://developer.android.com/studio/command-line/adb.html#Enabling
-[drivers]: https://developer.android.com/studio/run/oem-usb.html
-[google-usb-driver]: https://developer.android.com/studio/run/win-usb
-
-
 ### Several devices connected
 
 If several devices are connected, you will encounter this error:
 
->     error: more than one device/emulator
+ERROR: Multiple (2) ADB devices:
+ERROR:     -->   (usb)  0123456789abcdef                device  Nexus_5
+ERROR:     --> (tcpip)  192.168.1.5:5555                device  GM1913
+ERROR: Select a device via -s (--serial), -d (--select-usb) or -e (--select-tcpip)
 
-the identifier of the device you want to mirror must be provided:
+In that case, you can either provide the identifier of the device you want to
+mirror:
 
 ```bash
-scrcpy -s 01234567890abcdef
+scrcpy -s 0123456789abcdef
+```
+
+Or request the single USB (or TCP/IP) device:
+
+```bash
+scrcpy -d  # USB device
+scrcpy -e  # TCP/IP device
 ```
 
 Note that if your device is connected over TCP/IP, you might get this message:
@@ -150,22 +158,24 @@ screen, then you might get poor quality, especially visible on text (see [#40]).
 
 [#40]: https://github.com/Genymobile/scrcpy/issues/40
 
-To improve downscaling quality, trilinear filtering is enabled automatically
-if the renderer is OpenGL and if it supports mipmapping.
+This problem should be fixed in scrcpy v1.22: **update to the latest version**.
 
-On Windows, you might want to force OpenGL:
-
-```
-scrcpy --render-driver=opengl
-```
-
-You may also need to configure the [scaling behavior]:
+On older versions, you must configure the [scaling behavior]:
 
 > `scrcpy.exe` > Properties > Compatibility > Change high DPI settings >
 > Override high DPI scaling behavior > Scaling performed by: _Application_.
 
 [scaling behavior]: https://github.com/Genymobile/scrcpy/issues/40#issuecomment-424466723
 
+Also, to improve downscaling quality, trilinear filtering is enabled
+automatically if the renderer is OpenGL and if it supports mipmapping.
+
+On Windows, you might want to force OpenGL to enable mipmapping:
+
+```
+scrcpy --render-driver=opengl
+```
+
 
 ### Issue with Wayland
 

README.md

@@ -1,6 +1,6 @@
-# scrcpy (v1.22)
+# scrcpy (v1.23)
 
-<img src="data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />
+<img src="app/data/icon.svg" width="128" height="128" alt="scrcpy" align="right" />
 
 _pronounced "**scr**een **c**o**py**"_
 
@@ -32,10 +32,8 @@ Its features include:
  - [configurable quality](#capture-configuration)
  - device screen [as a webcam (V4L2)](#v4l2loopback) (Linux-only)
  - [physical keyboard simulation (HID)](#physical-keyboard-simulation-hid)
-   (Linux-only)
  - [physical mouse simulation (HID)](#physical-mouse-simulation-hid)
-   (Linux-only)
- - [OTG mode](#otg) (Linux-only)
+ - [OTG mode](#otg)
  - and more…
 
 ## Requirements
@@ -108,10 +106,10 @@ process][BUILD_simple]).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.22.zip`][direct-win64]  
-   _(SHA-256: ce4d9b8cc761e29862c4a72d8ad6f538bdd1f1831d15fd1f36633cd3b403db82)_
+ - [`scrcpy-win64-v1.23.zip`][direct-win64]  
+   _(SHA-256: d2f601b1d0157faf65153d8a093d827fd65aec5d5842d677ac86fb2b5b7704cc)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.22/scrcpy-win64-v1.22.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.23/scrcpy-win64-v1.23.zip
 
 It is also available in [Chocolatey]:
 
@@ -406,18 +404,30 @@ connect to the device before starting.
 Alternatively, it is possible to enable the TCP/IP connection manually using
 `adb`:
 
-1. Connect the device to the same Wi-Fi as your computer.
-2. Get your device IP address, in Settings → About phone → Status, or by
+1. Plug the device into a USB port on your computer.
+2. Connect the device to the same Wi-Fi network as your computer.
+3. 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`)_.
-6. Run `scrcpy` as usual.
+4. Enable adb over TCP/IP on your device: `adb tcpip 5555`.
+5. Unplug your device.
+6. Connect to your device: `adb connect DEVICE_IP:5555` _(replace `DEVICE_IP`
+with the device IP address you found)_.
+7. Run `scrcpy` as usual.
+
+Since Android 11, a [Wireless debugging option][adb-wireless] allows to bypass
+having to physically connect your device directly to your computer.
+
+[adb-wireless]: https://developer.android.com/studio/command-line/adb#connect-to-a-device-over-wi-fi-android-11+
+
+If the connection randomly drops, run your `scrcpy` command to reconnect. If it
+says there are no devices/emulators found, try running `adb connect
+DEVICE_IP:5555` again, and then `scrcpy` as usual. If it still says there are
+none found, try running `adb disconnect` and then run those two commands again.
 
 It may be useful to decrease the bit-rate and the definition:
 
@@ -438,6 +448,9 @@ scrcpy --serial 0123456789abcdef
 scrcpy -s 0123456789abcdef  # short version
 ```
 
+The serial may also be provided via the environment variable `ANDROID_SERIAL`
+(also used by `adb`).
+
 If the device is connected over TCP/IP:
 
 ```bash
@@ -807,14 +820,17 @@ a location inverted through the center of the screen.
 By default, scrcpy uses Android key or text injection: it works everywhere, but
 is limited to ASCII.
 
-On Linux, scrcpy can simulate a physical USB keyboard on Android to provide a
-better input experience (using [USB HID over AOAv2][hid-aoav2]): the virtual
+Alternatively, scrcpy can simulate a physical USB keyboard on Android to provide
+a better input experience (using [USB HID over AOAv2][hid-aoav2]): the virtual
 keyboard is disabled and it works for all characters and IME.
 
 [hid-aoav2]: https://source.android.com/devices/accessories/aoa2#hid-support
 
-However, it only works if the device is connected by USB, and is currently only
-supported on Linux.
+However, it only works if the device is connected by USB.
+
+Note: On Windows, it may only work in [OTG mode](#otg), not while mirroring (it
+is not possible to open a USB device if it is already open by another process
+like the adb daemon).
 
 To enable this mode:
 
@@ -847,8 +863,7 @@ a physical keyboard is connected).
 #### Physical mouse simulation (HID)
 
 Similarly to the physical keyboard simulation, it is possible to simulate a
-physical mouse. Likewise, it only works if the device is connected by USB, and
-is currently only supported on Linux.
+physical mouse. Likewise, it only works if the device is connected by USB.
 
 By default, scrcpy uses Android mouse events injection, using absolute
 coordinates. By simulating a physical mouse, a mouse pointer appears on the
@@ -901,7 +916,7 @@ scrcpy --otg                             # keyboard and mouse
 ```
 
 Like `--hid-keyboard` and `--hid-mouse`, it only works if the device is
-connected by USB, and is currently only supported on Linux.
+connected by USB.
 
 
 #### Text injection preference
@@ -1093,7 +1108,9 @@ See [BUILD].
 
 ## Common issues
 
-See the [FAQ](FAQ.md).
+See the [FAQ].md).
+
+[FAQ]: FAQ.md
 
 
 ## Developers
@@ -1128,10 +1145,22 @@ 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/
 
+## Contact
+
+If you encounter a bug, please read the [FAQ] first, then open an [issue].
+
+[issue]: https://github.com/Genymobile/scrcpy/issues
+
+For general questions or discussions, you could also use:
+
+ - Reddit: [`r/scrcpy`](https://www.reddit.com/r/scrcpy)
+ - Twitter: [`@scrcpy_app`](https://twitter.com/scrcpy_app)
+
 ## Translations
 
 This README is available in other languages:
 
+- [Deutsch (German, `de`) - v1.22](README.de.md)
 - [Indonesian (Indonesia, `id`) - v1.16](README.id.md)
 - [Italiano (Italiano, `it`) - v1.19](README.it.md)
 - [日本語 (Japanese, `jp`) - v1.19](README.jp.md)

app/data/bash-completion/scrcpy

@@ -0,0 +1,121 @@
+_scrcpy() {
+    local cur prev words cword
+    local opts="
+        --always-on-top
+        -b --bit-rate=
+        --codec-options=
+        --crop=
+        -d --select-usb
+        --disable-screensaver
+        --display=
+        --display-buffer=
+        -e --select-tcpip
+        --encoder=
+        --force-adb-forward
+        --forward-all-clicks
+        -f --fullscreen
+        -K --hid-keyboard
+        -h --help
+        --legacy-paste
+        --lock-video-orientation
+        --lock-video-orientation=
+        --max-fps=
+        -M --hid-mouse
+        -m --max-size=
+        --no-cleanup
+        --no-clipboard-on-error
+        --no-downsize-on-error
+        -n --no-control
+        -N --no-display
+        --no-key-repeat
+        --no-mipmaps
+        --otg
+        -p --port=
+        --power-off-on-close
+        --prefer-text
+        --print-fps
+        --push-target=
+        --raw-key-events
+        -r --record=
+        --record-format=
+        --render-driver=
+        --rotation=
+        -s --serial=
+        --shortcut-mod=
+        -S --turn-screen-off
+        -t --show-touches
+        --tcpip
+        --tcpip=
+        --tunnel-host=
+        --tunnel-port=
+        --v4l2-buffer=
+        --v4l2-sink=
+        -V --verbosity=
+        -v --version
+        -w --stay-awake
+        --window-borderless
+        --window-title=
+        --window-x=
+        --window-y=
+        --window-width=
+        --window-height="
+
+    _init_completion -s || return
+
+    case "$prev" in
+        --lock-video-orientation)
+            COMPREPLY=($(compgen -W 'unlocked initial 0 1 2 3' -- "$cur"))
+            return
+            ;;
+        -r|--record)
+            COMPREPLY=($(compgen -f -- "$cur"))
+            return
+            ;;
+        --record-format)
+            COMPREPLY=($(compgen -W 'mkv mp4' -- "$cur"))
+            return
+            ;;
+        --render-driver)
+            COMPREPLY=($(compgen -W 'direct3d opengl opengles2 opengles metal software' -- "$cur"))
+            return
+            ;;
+        --rotation)
+            COMPREPLY=($(compgen -W '0 1 2 3' -- "$cur"))
+            return
+            ;;
+        --shortcut-mod)
+            # Only auto-complete a single key
+            COMPREPLY=($(compgen -W 'lctrl rctrl lalt ralt lsuper rsuper' -- "$cur"))
+            return
+            ;;
+        -V|--verbosity)
+            COMPREPLY=($(compgen -W 'verbose debug info warn error' -- "$cur"))
+            return
+            ;;
+        -b|--bitrate \
+        |--codec-options \
+        |--crop \
+        |--display \
+        |--display-buffer \
+        |--encoder \
+        |--max-fps \
+        |-m|--max-size \
+        |-p|--port \
+        |--push-target \
+        |-s|--serial \
+        |--tunnel-host \
+        |--tunnel-port \
+        |--v4l2-buffer \
+        |--v4l2-sink \
+        |--tcpip \
+        |--window-*)
+            # Option accepting an argument, but nothing to auto-complete
+            return
+            ;;
+    esac
+
+    COMPREPLY=($(compgen -W "$opts" -- "$cur"))
+    [[ $COMPREPLY == *= ]] && compopt -o nospace
+}
+
+complete -F _scrcpy scrcpy

app/data/zsh-completion/_scrcpy

@@ -0,0 +1,69 @@
+#compdef -N scrcpy -N scrcpy.exe
+#
+# name: scrcpy
+# auth: hltdev [hltdev8642@gmail.com]
+# desc: completion file for scrcpy (all OSes)
+#
+
+local arguments
+
+arguments=(
+    '--always-on-top[Make scrcpy window always on top \(above other windows\)]'
+    {-b,--bit-rate=}'[Encode the video at the given bit-rate]'
+    '--codec-options=[Set a list of comma-separated key\:type=value options for the device encoder]'
+    '--crop=[\[width\:height\:x\:y\] Crop the device screen on the server]'
+    {-d,--select-usb}'[Use USB device]'
+    '--disable-screensaver[Disable screensaver while scrcpy is running]'
+    '--display=[Specify the display id to mirror]'
+    '--display-buffer=[Add a buffering delay \(in milliseconds\) before displaying]'
+    {-e,--select-tcpip}'[Use TCP/IP device]'
+    '--encoder=[Use a specific MediaCodec encoder \(must be a H.264 encoder\)]'
+    '--force-adb-forward[Do not attempt to use \"adb reverse\" to connect to the device]'
+    '--forward-all-clicks[Forward clicks to device]'
+    {-f,--fullscreen}'[Start in fullscreen]'
+    {-K,--hid-keyboard}'[Simulate a physical keyboard by using HID over AOAv2]'
+    {-h,--help}'[Print the help]'
+    '--legacy-paste[Inject computer clipboard text as a sequence of key events on Ctrl+v]'
+    '--lock-video-orientation=[Lock video orientation]:orientation:(unlocked initial 0 1 2 3)'
+    '--max-fps=[Limit the frame rate of screen capture]'
+    {-M,--hid-mouse}'[Simulate a physical mouse by using HID over AOAv2]'
+    {-m,--max-size=}'[Limit both the width and height of the video to value]'
+    '--no-cleanup[Disable device cleanup actions on exit]'
+    '--no-clipboard-autosync[Disable automatic clipboard synchronization]'
+    '--no-downsize-on-error[Disable lowering definition on MediaCodec error]'
+    {-n,--no-control}'[Disable device control \(mirror the device in read only\)]'
+    {-N,--no-display}'[Do not display device \(during screen recording or when V4L2 sink is enabled\)]'
+    '--no-key-repeat[Do not forward repeated key events when a key is held down]'
+    '--no-mipmaps[Disable the generation of mipmaps]'
+    '--otg[Run in OTG mode \(simulating physical keyboard and mouse\)]'
+    {-p,--port=}'[\[port\[\:port\]\] Set the TCP port \(range\) used by the client to listen]'
+    '--power-off-on-close[Turn the device screen off when closing scrcpy]'
+    '--prefer-text[Inject alpha characters and space as text events instead of key events]'
+    '--print-fps[Start FPS counter, to print frame logs to the console]'
+    '--push-target=[Set the target directory for pushing files to the device by drag and drop]'
+    '--raw-key-events[Inject key events for all input keys, and ignore text events]'
+    {-r,--record=}'[Record screen to file]:record file:_files'
+    '--record-format=[Force recording format]:format:(mp4 mkv)'
+    '--render-driver=[Request SDL to use the given render driver]:driver name:(direct3d opengl opengles2 opengles metal software)'
+    '--rotation=[Set the initial display rotation]:rotation values:(0 1 2 3)'
+    {-s,--serial=}'[The device serial number \(mandatory for multiple devices only\)]'
+    '--shortcut-mod=[\[key1,key2+key3,...\] Specify the modifiers to use for scrcpy shortcuts]:shortcut mod:(lctrl rctrl lalt ralt lsuper rsuper)'
+    {-S,--turn-screen-off}'[Turn the device screen off immediately]'
+    {-t,--show-touches}'[Show physical touches]'
+    '--tcpip[\(optional \[ip\:port\]\) Configure and connect the device over TCP/IP]'
+    '--tunnel-host=[Set the IP address of the adb tunnel to reach the scrcpy server]'
+    '--tunnel-port=[Set the TCP port of the adb tunnel to reach the scrcpy server]'
+    '--v4l2-buffer=[Add a buffering delay \(in milliseconds\) before pushing frames]'
+    '--v4l2-sink=[\[\/dev\/videoN\] Output to v4l2loopback device]'
+    {-V,--verbosity=}'[Set the log level]:verbosity:(verbose debug info warn error)'
+    {-v,--version}'[Print the version of scrcpy]'
+    {-w,--stay-awake}'[Keep the device on while scrcpy is running, when the device is plugged in]'
+    '--window-borderless[Disable window decorations \(display borderless window\)]'
+    '--window-title=[Set a custom window title]'
+    '--window-x=[Set the initial window horizontal position]'
+    '--window-y=[Set the initial window vertical position]'
+    '--window-width=[Set the initial window width]'
+    '--window-height=[Set the initial window height]'
+)
+
+_arguments -s $arguments

app/meson.build

@@ -227,6 +227,10 @@ install_man('scrcpy.1')
 install_data('data/icon.png',
              rename: 'scrcpy.png',
              install_dir: 'share/icons/hicolor/256x256/apps')
+install_data('data/zsh-completion/_scrcpy',
+             install_dir: 'share/zsh/site-functions')
+install_data('data/bash-completion/scrcpy',
+             install_dir: 'share/bash-completion/completions')
 
 
 ### TESTS

app/scrcpy-windows.rc

@@ -13,7 +13,7 @@ BEGIN
       VALUE "LegalCopyright", "Romain Vimont, Genymobile"
       VALUE "OriginalFilename", "scrcpy.exe"
       VALUE "ProductName", "scrcpy"
-      VALUE "ProductVersion", "1.22"
+      VALUE "ProductVersion", "1.23"
     END
   END
   BLOCK "VarFileInfo"

app/scrcpy.1

@@ -355,6 +355,12 @@ Set the initial window height.
 
 Default is 0 (automatic).
 
+.SH EXIT STATUS
+.B scrcpy
+will exit with code 0 on normal program termination. If an initial
+connection cannot be established, the exit code 1 will be returned. If the
+device disconnects while a session is active, exit code 2 will be returned.
+
 .SH SHORTCUTS
 
 In the following list, MOD is the shortcut modifier. By default, it's (left)
@@ -471,6 +477,10 @@ Push file to device (see \fB\-\-push\-target\fR)
 .B ADB
 Path to adb.
 
+.TP
+.B ANDROID_SERIAL
+Device serial to use if no selector (-s, -d, -e or --tcpip=<addr>) is specified.
+
 .TP
 .B SCRCPY_ICON_PATH
 Path to the program icon.

app/src/cli.c

@@ -80,6 +80,11 @@ struct sc_envvar {
     const char *text;
 };
 
+struct sc_exit_status {
+    unsigned value;
+    const char *text;
+};
+
 struct sc_getopt_adapter {
     char *optstring;
     struct option *longopts;
@@ -422,6 +427,20 @@ static const struct sc_option options[] = {
                 "on exit.\n"
                 "It only shows physical touches (not clicks from scrcpy).",
     },
+    {
+        .longopt_id = OPT_TCPIP,
+        .longopt = "tcpip",
+        .argdesc = "ip[:port]",
+        .optional_arg = true,
+        .text = "Configure and reconnect the device over TCP/IP.\n"
+                "If a destination address is provided, then scrcpy connects to "
+                "this address before starting. The device must listen on the "
+                "given TCP port (default is 5555).\n"
+                "If no destination address is provided, then scrcpy attempts "
+                "to find the IP address of the current device (typically "
+                "connected over USB), enables TCP/IP mode, then connects to "
+                "this address before starting.",
+    },
     {
         .longopt_id = OPT_TUNNEL_HOST,
         .longopt = "tunnel-host",
@@ -483,20 +502,6 @@ static const struct sc_option options[] = {
         .text = "Keep the device on while scrcpy is running, when the device "
                 "is plugged in.",
     },
-    {
-        .longopt_id = OPT_TCPIP,
-        .longopt = "tcpip",
-        .argdesc = "ip[:port]",
-        .optional_arg = true,
-        .text = "Configure and reconnect the device over TCP/IP.\n"
-                "If a destination address is provided, then scrcpy connects to "
-                "this address before starting. The device must listen on the "
-                "given TCP port (default is 5555).\n"
-                "If no destination address is provided, then scrcpy attempts "
-                "to find the IP address of the current device (typically "
-                "connected over USB), enables TCP/IP mode, then connects to "
-                "this address before starting.",
-    },
     {
         .longopt_id = OPT_WINDOW_BORDERLESS,
         .longopt = "window-borderless",
@@ -655,6 +660,11 @@ static const struct sc_envvar envvars[] = {
         .name = "ADB",
         .text = "Path to adb executable",
     },
+    {
+        .name = "ANDROID_SERIAL",
+        .text = "Device serial to use if no selector (-s, -d, -e or "
+                "--tcpip=<addr>) is specified",
+    },
     {
         .name = "SCRCPY_ICON_PATH",
         .text = "Path to the program icon",
@@ -662,7 +672,22 @@ static const struct sc_envvar envvars[] = {
     {
         .name = "SCRCPY_SERVER_PATH",
         .text = "Path to the server binary",
-    }
+    },
+};
+
+static const struct sc_exit_status exit_statuses[] = {
+    {
+        .value = 0,
+        .text = "Normal program termination",
+    },
+    {
+        .value = 1,
+        .text = "Start failure",
+    },
+    {
+        .value = 2,
+        .text = "Device disconnected while running",
+    },
 };
 
 static char *
@@ -901,6 +926,25 @@ print_envvar(const struct sc_envvar *envvar, unsigned cols) {
     free(text);
 }
 
+static void
+print_exit_status(const struct sc_exit_status *status, unsigned cols) {
+    assert(cols > 8); // sc_str_wrap_lines() requires indent < columns
+    assert(status->text);
+
+    // The text starts at 9: 4 ident spaces, 3 chars for numeric value, 2 spaces
+    char *text = sc_str_wrap_lines(status->text, cols, 9);
+    if (!text) {
+        printf("<ERROR>\n");
+        return;
+    }
+
+    assert(strlen(text) >= 9); // Contains at least the initial identation
+
+    // text + 9 to remove the initial indentation
+    printf("    %3d  %s\n", status->value, text + 9);
+    free(text);
+}
+
 void
 scrcpy_print_usage(const char *arg0) {
 #define SC_TERM_COLS_DEFAULT 80
@@ -939,6 +983,11 @@ scrcpy_print_usage(const char *arg0) {
     for (size_t i = 0; i < ARRAY_LEN(envvars); ++i) {
         print_envvar(&envvars[i], cols);
     }
+
+    printf("\nExit status:\n\n");
+    for (size_t i = 0; i < ARRAY_LEN(exit_statuses); ++i) {
+        print_exit_status(&exit_statuses[i], cols);
+    }
 }
 
 static bool

app/src/main.c

@@ -40,19 +40,19 @@ main(int argc, char *argv[]) {
 #endif
 
     if (!scrcpy_parse_args(&args, argc, argv)) {
-        return 1;
+        return SCRCPY_EXIT_FAILURE;
     }
 
     sc_set_log_level(args.opts.log_level);
 
     if (args.help) {
         scrcpy_print_usage(argv[0]);
-        return 0;
+        return SCRCPY_EXIT_SUCCESS;
     }
 
     if (args.version) {
         scrcpy_print_version();
-        return 0;
+        return SCRCPY_EXIT_SUCCESS;
     }
 
 #ifdef SCRCPY_LAVF_REQUIRES_REGISTER_ALL
@@ -66,17 +66,17 @@ main(int argc, char *argv[]) {
 #endif
 
     if (avformat_network_init()) {
-        return 1;
+        return SCRCPY_EXIT_FAILURE;
     }
 
 #ifdef HAVE_USB
-    bool ok = args.opts.otg ? scrcpy_otg(&args.opts)
+    enum scrcpy_exit_code ret = args.opts.otg ? scrcpy_otg(&args.opts)
                                               : scrcpy(&args.opts);
 #else
-    bool ok = scrcpy(&args.opts);
+    enum scrcpy_exit_code ret = scrcpy(&args.opts);
 #endif
 
     avformat_network_deinit(); // ignore failure
 
-    return ok ? 0 : 1;
+    return ret;
 }

app/src/scrcpy.c

@@ -149,38 +149,41 @@ sdl_configure(bool display, bool disable_screensaver) {
     }
 }
 
-static bool
+static enum scrcpy_exit_code
 event_loop(struct scrcpy *s) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
         switch (event.type) {
             case EVENT_STREAM_STOPPED:
                 LOGW("Device disconnected");
-                return false;
+                return SCRCPY_EXIT_DISCONNECTED;
             case SDL_QUIT:
                 LOGD("User requested to quit");
-                return true;
+                return SCRCPY_EXIT_SUCCESS;
             default:
                 sc_screen_handle_event(&s->screen, &event);
                 break;
         }
     }
-    return false;
+    return SCRCPY_EXIT_FAILURE;
 }
 
+// Return true on success, false on error
 static bool
-await_for_server(void) {
+await_for_server(bool *connected) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
         switch (event.type) {
             case SDL_QUIT:
                 LOGD("User requested to quit");
-                return false;
+                *connected = false;
+                return true;
             case EVENT_SERVER_CONNECTION_FAILED:
                 LOGE("Server connection failed");
                 return false;
             case EVENT_SERVER_CONNECTED:
                 LOGD("Server connected");
+                *connected = true;
                 return true;
             default:
                 break;
@@ -262,7 +265,7 @@ sc_server_on_disconnected(struct sc_server *server, void *userdata) {
     // event
 }
 
-bool
+enum scrcpy_exit_code
 scrcpy(struct scrcpy_options *options) {
     static struct scrcpy scrcpy;
     struct scrcpy *s = &scrcpy;
@@ -270,12 +273,12 @@ scrcpy(struct scrcpy_options *options) {
     // Minimal SDL initialization
     if (SDL_Init(SDL_INIT_EVENTS)) {
         LOGE("Could not initialize SDL: %s", SDL_GetError());
-        return false;
+        return SCRCPY_EXIT_FAILURE;
     }
 
     atexit(SDL_Quit);
 
-    bool ret = false;
+    enum scrcpy_exit_code ret = SCRCPY_EXIT_FAILURE;
 
     bool server_started = false;
     bool file_pusher_initialized = false;
@@ -329,7 +332,7 @@ scrcpy(struct scrcpy_options *options) {
         .on_disconnected = sc_server_on_disconnected,
     };
     if (!sc_server_init(&s->server, &params, &cbs, NULL)) {
-        return false;
+        return SCRCPY_EXIT_FAILURE;
     }
 
     if (!sc_server_start(&s->server)) {
@@ -351,7 +354,14 @@ scrcpy(struct scrcpy_options *options) {
     sdl_configure(options->display, options->disable_screensaver);
 
     // Await for server without blocking Ctrl+C handling
-    if (!await_for_server()) {
+    bool connected;
+    if (!await_for_server(&connected)) {
+        goto end;
+    }
+
+    if (!connected) {
+        // This is not an error, user requested to quit
+        ret = SCRCPY_EXIT_SUCCESS;
         goto end;
     }
 

app/src/scrcpy.h

@@ -6,7 +6,18 @@
 #include <stdbool.h>
 #include "options.h"
 
-bool
+enum scrcpy_exit_code {
+    // Normal program termination
+    SCRCPY_EXIT_SUCCESS,
+
+    // No connection could be established
+    SCRCPY_EXIT_FAILURE,
+
+    // Device was disconnected while running
+    SCRCPY_EXIT_DISCONNECTED,
+};
+
+enum scrcpy_exit_code
 scrcpy(struct scrcpy_options *options);
 
 #endif

app/src/server.c

@@ -706,9 +706,17 @@ run_server(void *data) {
             selector.type = SC_ADB_DEVICE_SELECT_USB;
         } else if (params->select_tcpip) {
             selector.type = SC_ADB_DEVICE_SELECT_TCPIP;
+        } else {
+            // No explicit selection, check $ANDROID_SERIAL
+            const char *env_serial = getenv("ANDROID_SERIAL");
+            if (env_serial) {
+                LOGI("Using ANDROID_SERIAL: %s", env_serial);
+                selector.type = SC_ADB_DEVICE_SELECT_SERIAL;
+                selector.serial = env_serial;
             } else {
                 selector.type = SC_ADB_DEVICE_SELECT_ALL;
             }
+        }
         struct sc_adb_device device;
         ok = sc_adb_select_device(&server->intr, &selector, 0, &device);
         if (!ok) {

app/src/usb/hid_keyboard.c

@@ -340,7 +340,7 @@ push_mod_lock_state(struct sc_hid_keyboard *kb, uint16_t mods_state) {
 
     if (!sc_aoa_push_hid_event(kb->aoa, &hid_event)) {
         sc_hid_event_destroy(&hid_event);
-        LOGW("Could request HID event");
+        LOGW("Could not request HID event (mod lock state)");
         return false;
     }
 
@@ -382,7 +382,7 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
 
         if (!sc_aoa_push_hid_event(kb->aoa, &hid_event)) {
             sc_hid_event_destroy(&hid_event);
-            LOGW("Could request HID event");
+            LOGW("Could not request HID event (key)");
         }
     }
 }

app/src/usb/hid_mouse.c

@@ -181,7 +181,7 @@ sc_mouse_processor_process_mouse_motion(struct sc_mouse_processor *mp,
 
     if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
         sc_hid_event_destroy(&hid_event);
-        LOGW("Could request HID event");
+        LOGW("Could not request HID event (mouse motion)");
     }
 }
 
@@ -203,7 +203,7 @@ sc_mouse_processor_process_mouse_click(struct sc_mouse_processor *mp,
 
     if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
         sc_hid_event_destroy(&hid_event);
-        LOGW("Could request HID event");
+        LOGW("Could not request HID event (mouse click)");
     }
 }
 
@@ -228,7 +228,7 @@ sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
 
     if (!sc_aoa_push_hid_event(mouse->aoa, &hid_event)) {
         sc_hid_event_destroy(&hid_event);
-        LOGW("Could request HID event");
+        LOGW("Could not request HID event (mouse scroll)");
     }
 }
 

app/src/usb/scrcpy_otg.c

@@ -29,26 +29,26 @@ sc_usb_on_disconnected(struct sc_usb *usb, void *userdata) {
     }
 }
 
-static bool
+static enum scrcpy_exit_code
 event_loop(struct scrcpy_otg *s) {
     SDL_Event event;
     while (SDL_WaitEvent(&event)) {
         switch (event.type) {
             case EVENT_USB_DEVICE_DISCONNECTED:
                 LOGW("Device disconnected");
-                return false;
+                return SCRCPY_EXIT_DISCONNECTED;
             case SDL_QUIT:
                 LOGD("User requested to quit");
-                return true;
+                return SCRCPY_EXIT_SUCCESS;
             default:
                 sc_screen_otg_handle_event(&s->screen_otg, &event);
                 break;
         }
     }
-    return false;
+    return SCRCPY_EXIT_FAILURE;
 }
 
-bool
+enum scrcpy_exit_code
 scrcpy_otg(struct scrcpy_options *options) {
     static struct scrcpy_otg scrcpy_otg;
     struct scrcpy_otg *s = &scrcpy_otg;
@@ -67,7 +67,7 @@ scrcpy_otg(struct scrcpy_options *options) {
         LOGW("Could not enable mouse focus clickthrough");
     }
 
-    bool ret = false;
+    enum scrcpy_exit_code ret = SCRCPY_EXIT_FAILURE;
 
     struct sc_hid_keyboard *keyboard = NULL;
     struct sc_hid_mouse *mouse = NULL;
@@ -90,7 +90,7 @@ scrcpy_otg(struct scrcpy_options *options) {
     };
     bool ok = sc_usb_init(&s->usb);
     if (!ok) {
-        return false;
+        return SCRCPY_EXIT_FAILURE;
     }
 
     struct sc_usb_device usb_device;

app/src/usb/scrcpy_otg.h

@@ -3,10 +3,10 @@
 
 #include "common.h"
 
-#include <stdbool.h>
 #include "options.h"
+#include "scrcpy.h"
 
-bool
+enum scrcpy_exit_code
 scrcpy_otg(struct scrcpy_options *options);
 
 #endif

app/src/usb/usb.c

@@ -15,6 +15,7 @@ read_string(libusb_device_handle *handle, uint8_t desc_index) {
                                            (unsigned char *) buffer,
                                            sizeof(buffer));
     if (result < 0) {
+        LOGD("Read string: libusb error: %s", libusb_strerror(result));
         return NULL;
     }
 

app/src/util/vector.h

@@ -5,6 +5,7 @@
 
 #include <stdbool.h>
 #include <stddef.h>
+#include <stdlib.h>
 
 // Adapted from vlc_vector:
 // <https://code.videolan.org/videolan/vlc/-/blob/0857947abaed9c89810cd96353aaa1b7e6ba3b0d/include/vlc_vector.h>

install_release.sh

@@ -2,8 +2,8 @@
 set -e
 
 BUILDDIR=build-auto
-PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.22/scrcpy-server-v1.22
-PREBUILT_SERVER_SHA256=c05d273eec7533c0e106282e0254cf04e7f5e8f0c2920ca39448865fab2a419b
+PREBUILT_SERVER_URL=https://github.com/Genymobile/scrcpy/releases/download/v1.23/scrcpy-server-v1.23
+PREBUILT_SERVER_SHA256=2a913fd47478c0b306fca507cb0beb625e49a19ff9fc7ab904e36ef5b9fe7e68
 
 echo "[scrcpy] Downloading prebuilt server..."
 wget "$PREBUILT_SERVER_URL" -O scrcpy-server

meson.build

@@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '1.22',
+        version: '1.23',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',

server/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
         targetSdkVersion 31
-        versionCode 12200
-        versionName "1.22"
+        versionCode 12300
+        versionName "1.23"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {

server/build_without_gradle.sh

@@ -12,7 +12,7 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.22
+SCRCPY_VERSION_NAME=1.23
 
 PLATFORM=${ANDROID_PLATFORM:-31}
 BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-31.0.0}

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

@@ -11,7 +11,6 @@ import java.util.Locale;
 
 public final class Server {
 
-
     private Server() {
         // not instantiable
     }