Add option to lock video orientation

Signed-off-by: Romain Vimont <rom@rom1v.com>

DEVELOP.md

@@ -189,7 +189,7 @@ The client uses 4 threads:
    recording,
  - the **controller** thread, sending _control messages_ to the server,
  - the **receiver** thread (managed by the controller), receiving _device
-   messages_ from the client.
+   messages_ from the server.
 
 In addition, another thread can be started if necessary to handle APK
 installation or file push requests (via drag&drop on the main window) or to
@@ -214,7 +214,7 @@ When a new decoded frame is available, the decoder _swaps_ the decoding and
 rendering frame (with proper synchronization). Thus, it immediatly starts
 to decode a new frame while the main thread renders the last one.
 
-If a [recorder] is present (i.e. `--record` is enabled), then its muxes the raw
+If a [recorder] is present (i.e. `--record` is enabled), then it muxes the raw
 H.264 packet to the output video file.
 
 [stream]: https://github.com/Genymobile/scrcpy/blob/ffe0417228fb78ab45b7ee4e202fc06fc8875bf3/app/src/stream.h

LICENSE

@@ -188,7 +188,7 @@
       identification within third-party archives.
 
    Copyright (C) 2018 Genymobile
-   Copyright (C) 2018-2019 Romain Vimont
+   Copyright (C) 2018-2020 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.ko.md

@@ -475,7 +475,7 @@ _²화면이 꺼진 상태에서 우클릭 시 다시 켜지며, 그 외의 상
 ## 라이선스
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2019 Romain Vimont
+    Copyright (C) 2018-2020 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

@@ -37,8 +37,11 @@ control it using keyboard and mouse.
 
 ### Linux
 
-On Linux, you typically need to [build the app manually][BUILD]. Don't worry,
-it's not that hard.
+In Debian (_testing_ and _sid_ for now):
+
+```
+apt install scrcpy
+```
 
 A [Snap] package is available: [`scrcpy`][snap-link].
 
@@ -56,6 +59,10 @@ For Gentoo, an [Ebuild] is available: [`scrcpy/`][ebuild-link].
 [Ebuild]: https://wiki.gentoo.org/wiki/Ebuild
 [ebuild-link]: https://github.com/maggu2810/maggu2810-overlay/tree/master/app-mobilephone/scrcpy
 
+You could also [build the app manually][BUILD] (don't worry, it's not that
+hard).
+
+
 
 ### Windows
 
@@ -70,6 +77,20 @@ For Windows, for simplicity, prebuilt archives with all the dependencies
 [direct-win32]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win32-v1.12.1.zip
 [direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip
 
+It is also available in [Chocolatey]:
+
+[Chocolatey]: https://chocolatey.org/
+
+```bash
+choco install scrcpy
+```
+
+You need `adb`, accessible from your `PATH`. If you don't have it yet:
+
+```bash
+choco install adb
+```
+
 You can also [build the app manually][BUILD].
 
 
@@ -137,14 +158,12 @@ scrcpy -b 2M  # short version
 
 #### Limit frame rate
 
-The capture frame rate can be limited:
+On devices with Android >= 10, the capture frame rate can be limited:
 
 ```bash
 scrcpy --max-fps 15
 ```
 
-This is officially supported since Android 10, but may work on earlier versions.
-
 #### Crop
 
 The device screen may be cropped to mirror only part of the screen.
@@ -158,6 +177,21 @@ scrcpy --crop 1224:1440:0:0   # 1224x1440 at offset (0,0)
 If `--max-size` is also specified, resizing is applied after cropping.
 
 
+#### Lock video orientation
+
+
+To lock the orientation of the mirroring:
+
+```bash
+scrcpy --lock-video-orientation 0   # natural orientation
+scrcpy --lock-video-orientation 1   # 90° counterclockwise
+scrcpy --lock-video-orientation 2   # 180°
+scrcpy --lock-video-orientation 3   # 90° clockwise
+```
+
+This affects recording orientation.
+
+
 ### Recording
 
 It is possible to record the screen while mirroring:
@@ -216,6 +250,13 @@ scrcpy --serial 0123456789abcdef
 scrcpy -s 0123456789abcdef  # short version
 ```
 
+If the device is connected over TCP/IP:
+
+```bash
+scrcpy --serial 192.168.0.1:5555
+scrcpy -s 192.168.0.1:5555  # short version
+```
+
 You can start several instances of _scrcpy_ for several devices.
 
 #### SSH tunnel
@@ -491,7 +532,7 @@ Read the [developers page].
 ## Licence
 
     Copyright (C) 2018 Genymobile
-    Copyright (C) 2018-2019 Romain Vimont
+    Copyright (C) 2018-2020 Romain Vimont
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.

app/meson.build

@@ -76,9 +76,11 @@ cc = meson.get_compiler('c')
 
 if host_machine.system() == 'windows'
     src += [ 'src/sys/win/command.c' ]
+    src += [ 'src/sys/win/net.c' ]
     dependencies += cc.find_library('ws2_32')
 else
     src += [ 'src/sys/unix/command.c' ]
+    src += [ 'src/sys/unix/net.c' ]
 endif
 
 conf = configuration_data()
@@ -96,15 +98,20 @@ conf.set_quoted('PREFIX', get_option('prefix'))
 # directory as the executable)
 conf.set('PORTABLE', get_option('portable'))
 
-# the default client TCP port range for the "adb reverse" tunnel
+# the default client TCP port for the "adb reverse" tunnel
 # overridden by option --port
-conf.set('DEFAULT_LOCAL_PORT_RANGE_FIRST', '27183')
-conf.set('DEFAULT_LOCAL_PORT_RANGE_LAST', '27199')
+conf.set('DEFAULT_LOCAL_PORT', '27183')
 
 # 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

app/scrcpy.1

@@ -41,9 +41,15 @@ Start in fullscreen.
 .B \-h, \-\-help
 Print this help.
 
+.TP
+.BI "\-\-lock\-video\-orientation " value
+Lock video orientation to \fIvalue\fR. Values are integers in the range [-1..3]. Natural device orientation is 0 and each increment adds 90 degrees counterclockwise.
+
+Default is -1 (unlocked).
+
 .TP
 .BI "\-\-max\-fps " value
-Limit the framerate of screen capture (officially supported since Android 10, but may work on earlier versions).
+Limit the framerate of screen capture (only supported on devices with Android >= 10).
 
 .TP
 .BI "\-m, \-\-max\-size " value
@@ -60,10 +66,10 @@ Disable device control (mirror the device in read\-only).
 Do not display device (only when screen recording is enabled).
 
 .TP
-.BI "\-p, \-\-port " port[:port]
-Set the TCP port (range) used by the client to listen.
+.BI "\-p, \-\-port " port
+Set the TCP port the client listens on.
 
-Default is 27183:27199.
+Default is 27183.
 
 .TP
 .B \-\-prefer\-text
@@ -261,7 +267,7 @@ Copyright \(co 2018 Genymobile
 Genymobile
 .UE
 
-Copyright \(co 2018\-2019
+Copyright \(co 2018\-2020
 .MT rom@rom1v.com
 Romain Vimont
 .ME

app/src/cli.c

@@ -41,9 +41,15 @@ scrcpy_print_usage(const char *arg0) {
         "    -h, --help\n"
         "        Print this help.\n"
         "\n"
+        "    --lock-video-orientation value\n"
+        "        Lock video orientation to value. Values are integers in the\n"
+        "        range [-1..3]. Natural device orientation is 0 and each\n"
+        "        increment adds 90 degrees counterclockwise.\n"
+        "        Default is %d%s.\n"
+        "\n"
         "    --max-fps value\n"
-        "        Limit the frame rate of screen capture (officially supported\n"
-        "        since Android 10, but may work on earlier versions).\n"
+        "        Limit the frame rate of screen capture (only supported on\n"
+        "        devices with Android >= 10).\n"
         "\n"
         "    -m, --max-size value\n"
         "        Limit both the width and height of the video to value. The\n"
@@ -58,9 +64,9 @@ scrcpy_print_usage(const char *arg0) {
         "        Do not display device (only when screen recording is\n"
         "        enabled).\n"
         "\n"
-        "    -p, --port port[:port]\n"
-        "        Set the TCP port (range) used by the client to listen.\n"
-        "        Default is %d:%d.\n"
+        "    -p, --port port\n"
+        "        Set the TCP port the client listens on.\n"
+        "        Default is %d.\n"
         "\n"
         "    --prefer-text\n"
         "        Inject alpha characters and space as text events instead of\n"
@@ -193,7 +199,8 @@ scrcpy_print_usage(const char *arg0) {
         arg0,
         DEFAULT_BIT_RATE,
         DEFAULT_MAX_SIZE, DEFAULT_MAX_SIZE ? "" : " (unlimited)",
-        DEFAULT_LOCAL_PORT_RANGE_FIRST, DEFAULT_LOCAL_PORT_RANGE_LAST);
+        DEFAULT_LOCK_VIDEO_ORIENTATION, DEFAULT_LOCK_VIDEO_ORIENTATION >= 0 ? "" : " (unlocked)",
+        DEFAULT_LOCAL_PORT);
 }
 
 static bool
@@ -221,27 +228,6 @@ parse_integer_arg(const char *s, long *out, bool accept_suffix, long min,
     return true;
 }
 
-static size_t
-parse_integers_arg(const char *s, size_t max_items, long *out, long min,
-                   long max, const char *name) {
-    size_t count = parse_integers(s, ':', max_items, out);
-    if (!count) {
-        LOGE("Could not parse %s: %s", name, s);
-        return 0;
-    }
-
-    for (size_t i = 0; i < count; ++i) {
-        long value = out[i];
-        if (value < min || value > max) {
-            LOGE("Could not parse %s: value (%ld) out-of-range (%ld; %ld)",
-                 name, value, min, max);
-            return 0;
-        }
-    }
-
-    return count;
-}
-
 static bool
 parse_bit_rate(const char *s, uint32_t *bit_rate) {
     long value;
@@ -280,6 +266,19 @@ parse_max_fps(const char *s, uint16_t *max_fps) {
     return true;
 }
 
+static bool
+parse_lock_video_orientation(const char *s, int8_t *lock_video_orientation) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, -1, 3,
+                                "lock video orientation");
+    if (!ok) {
+        return false;
+    }
+
+    *lock_video_orientation = (int8_t) value;
+    return true;
+}
+
 static bool
 parse_window_position(const char *s, int16_t *position) {
     long value;
@@ -307,30 +306,14 @@ parse_window_dimension(const char *s, uint16_t *dimension) {
 }
 
 static bool
-parse_port_range(const char *s, struct port_range *port_range) {
-    long values[2];
-    size_t count = parse_integers_arg(s, 2, values, 0, 0xFFFF, "port");
-    if (!count) {
+parse_port(const char *s, uint16_t *port) {
+    long value;
+    bool ok = parse_integer_arg(s, &value, false, 0, 0xFFFF, "port");
+    if (!ok) {
         return false;
     }
 
-    uint16_t v0 = (uint16_t) values[0];
-    if (count == 1) {
-        port_range->first = v0;
-        port_range->last = v0;
-        return true;
-    }
-
-    assert(count == 2);
-    uint16_t v1 = (uint16_t) values[1];
-    if (v0 < v1) {
-        port_range->first = v0;
-        port_range->last = v1;
-    } else {
-        port_range->first = v1;
-        port_range->last = v0;
-    }
-
+    *port = (uint16_t) value;
     return true;
 }
 
@@ -364,51 +347,54 @@ guess_record_format(const char *filename) {
     return 0;
 }
 
-#define OPT_RENDER_EXPIRED_FRAMES 1000
-#define OPT_WINDOW_TITLE          1001
-#define OPT_PUSH_TARGET           1002
-#define OPT_ALWAYS_ON_TOP         1003
-#define OPT_CROP                  1004
-#define OPT_RECORD_FORMAT         1005
-#define OPT_PREFER_TEXT           1006
-#define OPT_WINDOW_X              1007
-#define OPT_WINDOW_Y              1008
-#define OPT_WINDOW_WIDTH          1009
-#define OPT_WINDOW_HEIGHT         1010
-#define OPT_WINDOW_BORDERLESS     1011
-#define OPT_MAX_FPS               1012
+#define OPT_RENDER_EXPIRED_FRAMES  1000
+#define OPT_WINDOW_TITLE           1001
+#define OPT_PUSH_TARGET            1002
+#define OPT_ALWAYS_ON_TOP          1003
+#define OPT_CROP                   1004
+#define OPT_RECORD_FORMAT          1005
+#define OPT_PREFER_TEXT            1006
+#define OPT_WINDOW_X               1007
+#define OPT_WINDOW_Y               1008
+#define OPT_WINDOW_WIDTH           1009
+#define OPT_WINDOW_HEIGHT          1010
+#define OPT_WINDOW_BORDERLESS      1011
+#define OPT_MAX_FPS                1012
+#define OPT_LOCK_VIDEO_ORIENTATION 1013
 
 bool
 scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
     static const struct option long_options[] = {
-        {"always-on-top",         no_argument,       NULL, OPT_ALWAYS_ON_TOP},
-        {"bit-rate",              required_argument, NULL, 'b'},
-        {"crop",                  required_argument, NULL, OPT_CROP},
-        {"fullscreen",            no_argument,       NULL, 'f'},
-        {"help",                  no_argument,       NULL, 'h'},
-        {"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'},
-        {"port",                  required_argument, NULL, 'p'},
-        {"push-target",           required_argument, NULL, OPT_PUSH_TARGET},
-        {"record",                required_argument, NULL, 'r'},
-        {"record-format",         required_argument, NULL, OPT_RECORD_FORMAT},
-        {"render-expired-frames", no_argument,       NULL,
-                                                     OPT_RENDER_EXPIRED_FRAMES},
-        {"serial",                required_argument, NULL, 's'},
-        {"show-touches",          no_argument,       NULL, 't'},
-        {"turn-screen-off",       no_argument,       NULL, 'S'},
-        {"prefer-text",           no_argument,       NULL, OPT_PREFER_TEXT},
-        {"version",               no_argument,       NULL, 'v'},
-        {"window-title",          required_argument, NULL, OPT_WINDOW_TITLE},
-        {"window-x",              required_argument, NULL, OPT_WINDOW_X},
-        {"window-y",              required_argument, NULL, OPT_WINDOW_Y},
-        {"window-width",          required_argument, NULL, OPT_WINDOW_WIDTH},
-        {"window-height",         required_argument, NULL, OPT_WINDOW_HEIGHT},
-        {"window-borderless",     no_argument,       NULL,
-                                                     OPT_WINDOW_BORDERLESS},
-        {NULL,                    0,                 NULL, 0  },
+        {"always-on-top",          no_argument,       NULL, OPT_ALWAYS_ON_TOP},
+        {"bit-rate",               required_argument, NULL, 'b'},
+        {"crop",                   required_argument, NULL, OPT_CROP},
+        {"fullscreen",             no_argument,       NULL, 'f'},
+        {"help",                   no_argument,       NULL, 'h'},
+        {"lock-video-orientation", required_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'},
+        {"port",                   required_argument, NULL, 'p'},
+        {"push-target",            required_argument, NULL, OPT_PUSH_TARGET},
+        {"record",                 required_argument, NULL, 'r'},
+        {"record-format",          required_argument, NULL, OPT_RECORD_FORMAT},
+        {"render-expired-frames",  no_argument,       NULL,
+                                                  OPT_RENDER_EXPIRED_FRAMES},
+        {"serial",                 required_argument, NULL, 's'},
+        {"show-touches",           no_argument,       NULL, 't'},
+        {"turn-screen-off",        no_argument,       NULL, 'S'},
+        {"prefer-text",            no_argument,       NULL, OPT_PREFER_TEXT},
+        {"version",                no_argument,       NULL, 'v'},
+        {"window-title",           required_argument, NULL, OPT_WINDOW_TITLE},
+        {"window-x",               required_argument, NULL, OPT_WINDOW_X},
+        {"window-y",               required_argument, NULL, OPT_WINDOW_Y},
+        {"window-width",           required_argument, NULL, OPT_WINDOW_WIDTH},
+        {"window-height",          required_argument, NULL, OPT_WINDOW_HEIGHT},
+        {"window-borderless",      no_argument,       NULL,
+                                                  OPT_WINDOW_BORDERLESS},
+        {NULL,                     0,                 NULL, 0  },
     };
 
     struct scrcpy_options *opts = &args->opts;
@@ -454,6 +440,11 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                     return false;
                 }
                 break;
+            case OPT_LOCK_VIDEO_ORIENTATION:
+                if (!parse_lock_video_orientation(optarg, &opts->lock_video_orientation)) {
+                    return false;
+                }
+                break;
             case 'n':
                 opts->control = false;
                 break;
@@ -461,7 +452,7 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
                 opts->display = false;
                 break;
             case 'p':
-                if (!parse_port_range(optarg, &opts->port_range)) {
+                if (!parse_port(optarg, &opts->port)) {
                     return false;
                 }
                 break;

app/src/command.c

@@ -4,6 +4,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 
 #include "config.h"
 #include "common.h"
@@ -55,32 +58,6 @@ argv_to_string(const char *const *argv, char *buf, size_t bufsize) {
     return idx;
 }
 
-static void
-show_adb_installation_msg() {
-#ifndef __WINDOWS__
-    static const struct {
-        const char *binary;
-        const char *command;
-    } pkg_managers[] = {
-        {"apt", "apt install adb"},
-        {"apt-get", "apt-get install adb"},
-        {"brew", "brew cask install android-platform-tools"},
-        {"dnf", "dnf install android-tools"},
-        {"emerge", "emerge dev-util/android-tools"},
-        {"pacman", "pacman -S android-tools"},
-    };
-    for (size_t i = 0; i < ARRAY_LEN(pkg_managers); ++i) {
-        if (cmd_search(pkg_managers[i].binary)) {
-            LOGI("You may install 'adb' by \"%s\"", pkg_managers[i].command);
-            return;
-        }
-    }
-#endif
-
-    LOGI("You may download and install 'adb' from "
-         "https://developer.android.com/studio/releases/platform-tools");
-}
-
 static void
 show_adb_err_msg(enum process_result err, const char *const argv[]) {
     char buf[512];
@@ -94,7 +71,6 @@ show_adb_err_msg(enum process_result err, const char *const argv[]) {
             LOGE("Command not found: %s", buf);
             LOGE("(make 'adb' accessible from your PATH or define its full"
                  "path in the ADB environment variable)");
-            show_adb_installation_msg();
             break;
         case PROCESS_SUCCESS:
             // do nothing
@@ -229,3 +205,14 @@ process_check_success(process_t proc, const char *name) {
     }
     return true;
 }
+
+bool
+is_regular_file(const char *path) {
+    struct stat path_stat;
+    int r = stat(path, &path_stat);
+    if (r) {
+        perror("stat");
+        return false;
+    }
+    return S_ISREG(path_stat.st_mode);
+}

app/src/command.h

@@ -43,11 +43,6 @@ enum process_result {
     PROCESS_ERROR_MISSING_BINARY,
 };
 
-#ifndef __WINDOWS__
-bool
-cmd_search(const char *file);
-#endif
-
 enum process_result
 cmd_execute(const char *const argv[], process_t *process);
 

app/src/common.h

@@ -27,9 +27,4 @@ struct position {
     struct point point;
 };
 
-struct port_range {
-    uint16_t first;
-    uint16_t last;
-};
-
 #endif

app/src/scrcpy.c

@@ -280,10 +280,11 @@ scrcpy(const struct scrcpy_options *options) {
     bool record = !!options->record_filename;
     struct server_params params = {
         .crop = options->crop,
-        .port_range = options->port_range,
+        .local_port = options->port,
         .max_size = options->max_size,
         .bit_rate = options->bit_rate,
         .max_fps = options->max_fps,
+        .lock_video_orientation = options->lock_video_orientation,
         .control = options->control,
     };
     if (!server_start(&server, options->serial, &params)) {

app/src/scrcpy.h

@@ -5,7 +5,6 @@
 #include <stdint.h>
 
 #include "config.h"
-#include "common.h"
 #include "input_manager.h"
 #include "recorder.h"
 
@@ -16,10 +15,11 @@ struct scrcpy_options {
     const char *window_title;
     const char *push_target;
     enum recorder_format record_format;
-    struct port_range port_range;
+    uint16_t port;
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
+    int8_t lock_video_orientation;
     int16_t window_x;
     int16_t window_y;
     uint16_t window_width;
@@ -42,13 +42,11 @@ struct scrcpy_options {
     .window_title = NULL, \
     .push_target = NULL, \
     .record_format = RECORDER_FORMAT_AUTO, \
-    .port_range = { \
-        .first = DEFAULT_LOCAL_PORT_RANGE_FIRST, \
-        .last = DEFAULT_LOCAL_PORT_RANGE_LAST, \
-    }, \
+    .port = DEFAULT_LOCAL_PORT, \
     .max_size = DEFAULT_MAX_SIZE, \
     .bit_rate = DEFAULT_BIT_RATE, \
     .max_fps = 0, \
+    .lock_video_orientation = DEFAULT_LOCK_VIDEO_ORIENTATION, \
     .window_x = -1, \
     .window_y = -1, \
     .window_width = 0, \

app/src/server.c

@@ -6,13 +6,11 @@
 #include <libgen.h>
 #include <stdio.h>
 #include <SDL2/SDL_timer.h>
-#include <SDL2/SDL_platform.h>
 
 #include "config.h"
 #include "command.h"
 #include "util/log.h"
 #include "util/net.h"
-#include "util/str_util.h"
 
 #define SOCKET_NAME "scrcpy"
 #define SERVER_FILENAME "scrcpy-server"
@@ -20,39 +18,20 @@
 #define DEFAULT_SERVER_PATH PREFIX "/share/scrcpy/" SERVER_FILENAME
 #define DEVICE_SERVER_PATH "/data/local/tmp/scrcpy-server.jar"
 
-static char *
+static const char *
 get_server_path(void) {
-#ifdef __WINDOWS__
-    const wchar_t *server_path_env = _wgetenv(L"SCRCPY_SERVER_PATH");
-#else
     const char *server_path_env = getenv("SCRCPY_SERVER_PATH");
-#endif
     if (server_path_env) {
+        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path_env);
         // if the envvar is set, use it
-#ifdef __WINDOWS__
-        char *server_path = utf8_from_wide_char(server_path_env);
-#else
-        char *server_path = SDL_strdup(server_path_env);
-#endif
-        if (!server_path) {
-            LOGE("Could not allocate memory");
-            return NULL;
-        }
-        LOGD("Using SCRCPY_SERVER_PATH: %s", server_path);
-        return server_path;
+        return server_path_env;
     }
 
 #ifndef PORTABLE
     LOGD("Using server: " DEFAULT_SERVER_PATH);
-    char *server_path = SDL_strdup(DEFAULT_SERVER_PATH);
-    if (!server_path) {
-        LOGE("Could not allocate memory");
-        return NULL;
-    }
     // the absolute path is hardcoded
-    return server_path;
+    return DEFAULT_SERVER_PATH;
 #else
-
     // use scrcpy-server in the same directory as the executable
     char *executable_path = get_executable_path();
     if (!executable_path) {
@@ -88,17 +67,12 @@ get_server_path(void) {
 
 static bool
 push_server(const char *serial) {
-    char *server_path = get_server_path();
-    if (!server_path) {
-        return false;
-    }
+    const char *server_path = get_server_path();
     if (!is_regular_file(server_path)) {
         LOGE("'%s' does not exist or is not a regular file\n", server_path);
-        SDL_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");
 }
 
@@ -126,6 +100,17 @@ disable_tunnel_forward(const char *serial, uint16_t local_port) {
     return process_check_success(process, "adb forward --remove");
 }
 
+static bool
+enable_tunnel(struct server *server) {
+    if (enable_tunnel_reverse(server->serial, server->local_port)) {
+        return true;
+    }
+
+    LOGW("'adb reverse' failed, fallback to 'adb forward'");
+    server->tunnel_forward = true;
+    return enable_tunnel_forward(server->serial, server->local_port);
+}
+
 static bool
 disable_tunnel(struct server *server) {
     if (server->tunnel_forward) {
@@ -134,108 +119,16 @@ disable_tunnel(struct server *server) {
     return disable_tunnel_reverse(server->serial);
 }
 
-static socket_t
-listen_on_port(uint16_t port) {
-#define IPV4_LOCALHOST 0x7F000001
-    return net_listen(IPV4_LOCALHOST, port, 1);
-}
-
-static bool
-enable_tunnel_reverse_any_port(struct server *server,
-                               struct port_range port_range) {
-    uint16_t port = port_range.first;
-    for (;;) {
-        if (!enable_tunnel_reverse(server->serial, port)) {
-            // the command itself failed, it will fail on any port
-            return false;
-        }
-
-        // At the application level, the device part is "the server" because it
-        // serves video stream and control. However, at the network level, the
-        // client listens and the server connects to the client. That way, the
-        // client can listen before starting the server app, so there is no
-        // need to try to connect until the server socket is listening on the
-        // device.
-        server->server_socket = listen_on_port(port);
-        if (server->server_socket != INVALID_SOCKET) {
-            // success
-            server->local_port = port;
-            return true;
-        }
-
-        // failure, disable tunnel and try another port
-        if (!disable_tunnel_reverse(server->serial)) {
-            LOGW("Could not remove reverse tunnel on port %" PRIu16, port);
-        }
-
-        // check before incrementing to avoid overflow on port 65535
-        if (port < port_range.last) {
-            LOGW("Could not listen on port %" PRIu16", retrying on %" PRIu16,
-                 port, port + 1);
-            port++;
-            continue;
-        }
-
-        if (port_range.first == port_range.last) {
-            LOGE("Could not listen on port %" PRIu16, port_range.first);
-        } else {
-            LOGE("Could not listen on any port in range %" PRIu16 ":%" PRIu16,
-                 port_range.first, port_range.last);
-        }
-        return false;
-    }
-}
-
-static bool
-enable_tunnel_forward_any_port(struct server *server,
-                               struct port_range port_range) {
-    server->tunnel_forward = true;
-    uint16_t port = port_range.first;
-    for (;;) {
-        if (enable_tunnel_forward(server->serial, port)) {
-            // success
-            server->local_port = port;
-            return true;
-        }
-
-        if (port < port_range.last) {
-            LOGW("Could not forward port %" PRIu16", retrying on %" PRIu16,
-                 port, port + 1);
-            port++;
-            continue;
-        }
-
-        if (port_range.first == port_range.last) {
-            LOGE("Could not forward port %" PRIu16, port_range.first);
-        } else {
-            LOGE("Could not forward any port in range %" PRIu16 ":%" PRIu16,
-                 port_range.first, port_range.last);
-        }
-        return false;
-    }
-}
-
-static bool
-enable_tunnel_any_port(struct server *server, struct port_range port_range) {
-    if (enable_tunnel_reverse_any_port(server, port_range)) {
-        return true;
-    }
-
-    // if "adb reverse" does not work (e.g. over "adb connect"), it fallbacks to
-    // "adb forward", so the app socket is the client
-
-    LOGW("'adb reverse' failed, fallback to 'adb forward'");
-    return enable_tunnel_forward_any_port(server, port_range);
-}
-
 static process_t
 execute_server(struct server *server, const struct server_params *params) {
     char max_size_string[6];
     char bit_rate_string[11];
     char max_fps_string[6];
+    char lock_video_orientation_string[3];
     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);
     const char *const cmd[] = {
         "shell",
         "CLASSPATH=" DEVICE_SERVER_PATH,
@@ -251,6 +144,7 @@ execute_server(struct server *server, const struct server_params *params) {
         max_size_string,
         bit_rate_string,
         max_fps_string,
+        lock_video_orientation_string,
         server->tunnel_forward ? "true" : "false",
         params->crop ? params->crop : "-",
         "true", // always send frame meta (packet boundaries + timestamp)
@@ -270,6 +164,13 @@ execute_server(struct server *server, const struct server_params *params) {
     return adb_execute(server->serial, cmd, sizeof(cmd) / sizeof(cmd[0]));
 }
 
+#define IPV4_LOCALHOST 0x7F000001
+
+static socket_t
+listen_on_port(uint16_t port) {
+    return net_listen(IPV4_LOCALHOST, port, 1);
+}
+
 static socket_t
 connect_and_read_byte(uint16_t port) {
     socket_t socket = net_connect(IPV4_LOCALHOST, port);
@@ -323,7 +224,7 @@ server_init(struct server *server) {
 bool
 server_start(struct server *server, const char *serial,
              const struct server_params *params) {
-    server->port_range = params->port_range;
+    server->local_port = params->local_port;
 
     if (serial) {
         server->serial = SDL_strdup(serial);
@@ -337,11 +238,30 @@ server_start(struct server *server, const char *serial,
         return false;
     }
 
-    if (!enable_tunnel_any_port(server, params->port_range)) {
+    if (!enable_tunnel(server)) {
         SDL_free(server->serial);
         return false;
     }
 
+    // if "adb reverse" does not work (e.g. over "adb connect"), it fallbacks to
+    // "adb forward", so the app socket is the client
+    if (!server->tunnel_forward) {
+        // At the application level, the device part is "the server" because it
+        // serves video stream and control. However, at the network level, the
+        // client listens and the server connects to the client. That way, the
+        // client can listen before starting the server app, so there is no
+        // need to try to connect until the server socket is listening on the
+        // device.
+
+        server->server_socket = listen_on_port(params->local_port);
+        if (server->server_socket == INVALID_SOCKET) {
+            LOGE("Could not listen on port %" PRIu16, params->local_port);
+            disable_tunnel(server);
+            SDL_free(server->serial);
+            return false;
+        }
+    }
+
     // server will connect to our server socket
     server->process = execute_server(server, params);
 

app/src/server.h

@@ -6,7 +6,6 @@
 
 #include "config.h"
 #include "command.h"
-#include "common.h"
 #include "util/net.h"
 
 struct server {
@@ -15,33 +14,29 @@ struct server {
     socket_t server_socket; // only used if !tunnel_forward
     socket_t video_socket;
     socket_t control_socket;
-    struct port_range port_range;
-    uint16_t local_port; // selected from port_range
+    uint16_t local_port;
     bool tunnel_enabled;
     bool tunnel_forward; // use "adb forward" instead of "adb reverse"
 };
 
-#define SERVER_INITIALIZER { \
-    .serial = NULL, \
-    .process = PROCESS_NONE, \
-    .server_socket = INVALID_SOCKET, \
-    .video_socket = INVALID_SOCKET, \
+#define SERVER_INITIALIZER {          \
+    .serial = NULL,                   \
+    .process = PROCESS_NONE,          \
+    .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, \
+    .local_port = 0,                  \
+    .tunnel_enabled = false,          \
+    .tunnel_forward = false,          \
 }
 
 struct server_params {
     const char *crop;
-    struct port_range port_range;
+    uint16_t local_port;
     uint16_t max_size;
     uint32_t bit_rate;
     uint16_t max_fps;
+    int8_t lock_video_orientation;
     bool control;
 };
 

app/src/sys/unix/command.c

@@ -14,50 +14,12 @@
 #include <limits.h>
 #include <signal.h>
 #include <stdlib.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) {
-    char *path = getenv("PATH");
-    if (!path)
-        return false;
-    path = strdup(path);
-    if (!path)
-        return false;
-
-    bool ret = false;
-    size_t file_len = strlen(file);
-    char *saveptr;
-    for (char *dir = strtok_r(path, ":", &saveptr); dir;
-            dir = strtok_r(NULL, ":", &saveptr)) {
-        size_t dir_len = strlen(dir);
-        char *fullpath = malloc(dir_len + file_len + 2);
-        if (!fullpath)
-            continue;
-        memcpy(fullpath, dir, dir_len);
-        fullpath[dir_len] = '/';
-        memcpy(fullpath + dir_len + 1, file, file_len + 1);
-
-        struct stat sb;
-        bool fullpath_executable = stat(fullpath, &sb) == 0 &&
-            sb.st_mode & S_IXUSR;
-        free(fullpath);
-        if (fullpath_executable) {
-            ret = true;
-            break;
-        }
-    }
-
-    free(path);
-    return ret;
-}
-
 enum process_result
 cmd_execute(const char *const argv[], pid_t *pid) {
     int fd[2];
@@ -165,14 +127,3 @@ get_executable_path(void) {
     return NULL;
 #endif
 }
-
-bool
-is_regular_file(const char *path) {
-    struct stat path_stat;
-
-    if (stat(path, &path_stat)) {
-        perror("stat");
-        return false;
-    }
-    return S_ISREG(path_stat.st_mode);
-}

app/src/sys/unix/net.c

@@ -0,0 +1,21 @@
+#include "util/net.h"
+
+#include <unistd.h>
+
+#include "config.h"
+
+bool
+net_init(void) {
+    // do nothing
+    return true;
+}
+
+void
+net_cleanup(void) {
+    // do nothing
+}
+
+bool
+net_close(socket_t socket) {
+    return !close(socket);
+}

app/src/sys/win/command.c

@@ -1,7 +1,5 @@
 #include "command.h"
 
-#include <sys/stat.h>
-
 #include "config.h"
 #include "util/log.h"
 #include "util/str_util.h"
@@ -92,22 +90,3 @@ get_executable_path(void) {
     buf[len] = '\0';
     return utf8_from_wide_char(buf);
 }
-
-bool
-is_regular_file(const char *path) {
-    wchar_t *wide_path = utf8_to_wide_char(path);
-    if (!wide_path) {
-        LOGC("Could not allocate wide char string");
-        return false;
-    }
-
-    struct _stat path_stat;
-    int r = _wstat(wide_path, &path_stat);
-    SDL_free(wide_path);
-
-    if (r) {
-        perror("stat");
-        return false;
-    }
-    return S_ISREG(path_stat.st_mode);
-}

app/src/sys/win/net.c

@@ -0,0 +1,25 @@
+#include "util/net.h"
+
+#include "config.h"
+#include "util/log.h"
+
+bool
+net_init(void) {
+    WSADATA wsa;
+    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
+    if (res < 0) {
+        LOGC("WSAStartup failed with error %d", res);
+        return false;
+    }
+    return true;
+}
+
+void
+net_cleanup(void) {
+    WSACleanup();
+}
+
+bool
+net_close(socket_t socket) {
+    return !closesocket(socket);
+}

app/src/util/net.c

@@ -1,7 +1,6 @@
 #include "net.h"
 
 #include <stdio.h>
-#include <SDL2/SDL_platform.h>
 
 #include "config.h"
 #include "log.h"
@@ -116,32 +115,3 @@ bool
 net_shutdown(socket_t socket, int how) {
     return !shutdown(socket, how);
 }
-
-bool
-net_init(void) {
-#ifdef __WINDOWS__
-    WSADATA wsa;
-    int res = WSAStartup(MAKEWORD(2, 2), &wsa) < 0;
-    if (res < 0) {
-        LOGC("WSAStartup failed with error %d", res);
-        return false;
-    }
-#endif
-    return true;
-}
-
-void
-net_cleanup(void) {
-#ifdef __WINDOWS__
-    WSACleanup();
-#endif
-}
-
-bool
-net_close(socket_t socket) {
-#ifdef __WINDOWS__
-    return !closesocket(socket);
-#else
-    return !close(socket);
-#endif
-}

app/src/util/str_util.c

@@ -81,35 +81,6 @@ parse_integer(const char *s, long *out) {
     return true;
 }
 
-size_t
-parse_integers(const char *s, const char sep, size_t max_items, long *out) {
-    size_t count = 0;
-    char *endptr;
-    do {
-        errno = 0;
-        long value = strtol(s, &endptr, 0);
-        if (errno == ERANGE) {
-            return 0;
-        }
-
-        if (endptr == s || (*endptr != sep && *endptr != '\0')) {
-            return 0;
-        }
-
-        out[count++] = value;
-        if (*endptr == sep) {
-            if (count >= max_items) {
-                // max items already reached, could not accept a new item
-                return 0;
-            }
-            // parse the next token during the next iteration
-            s = endptr + 1;
-        }
-    } while (*endptr != '\0');
-
-    return count;
-}
-
 bool
 parse_integer_with_suffix(const char *s, long *out) {
     char *endptr;

app/src/util/str_util.h

@@ -31,11 +31,6 @@ strquote(const char *src);
 bool
 parse_integer(const char *s, long *out);
 
-// parse s as integers separated by sep (for example '1234:2000')
-// returns the number of integers on success, 0 on failure
-size_t
-parse_integers(const char *s, const char sep, size_t max_items, long *out);
-
 // parse s as an integer into value
 // like parse_integer(), but accept 'k'/'K' (x1000) and 'm'/'M' (x1000000) as
 // suffix

app/tests/test_cli.c

@@ -48,9 +48,10 @@ static void test_options(void) {
         "--fullscreen",
         "--max-fps", "30",
         "--max-size", "1024",
+        "--lock-video-orientation", "2",
         // "--no-control" is not compatible with "--turn-screen-off"
         // "--no-display" is not compatible with "--fulscreen"
-        "--port", "1234:1236",
+        "--port", "1234",
         "--push-target", "/sdcard/Movies",
         "--record", "file",
         "--record-format", "mkv",
@@ -78,8 +79,8 @@ static void test_options(void) {
     assert(opts->fullscreen);
     assert(opts->max_fps == 30);
     assert(opts->max_size == 1024);
-    assert(opts->port_range.first == 1234);
-    assert(opts->port_range.last == 1236);
+    assert(opts->lock_video_orientation == 2);
+    assert(opts->port == 1234);
     assert(!strcmp(opts->push_target, "/sdcard/Movies"));
     assert(!strcmp(opts->record_filename, "file"));
     assert(opts->record_format == RECORDER_FORMAT_MKV);

app/tests/test_strutil.c

@@ -187,55 +187,6 @@ static void test_parse_integer(void) {
     assert(!ok); // out-of-range
 }
 
-static void test_parse_integers(void) {
-    long values[5];
-
-    size_t count = parse_integers("1234", ':', 5, values);
-    assert(count == 1);
-    assert(values[0] == 1234);
-
-    count = parse_integers("1234:5678", ':', 5, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == 5678);
-
-    count = parse_integers("1234:5678", ':', 2, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == 5678);
-
-    count = parse_integers("1234:-5678", ':', 2, values);
-    assert(count == 2);
-    assert(values[0] == 1234);
-    assert(values[1] == -5678);
-
-    count = parse_integers("1:2:3:4:5", ':', 5, values);
-    assert(count == 5);
-    assert(values[0] == 1);
-    assert(values[1] == 2);
-    assert(values[2] == 3);
-    assert(values[3] == 4);
-    assert(values[4] == 5);
-
-    count = parse_integers("1234:5678", ':', 1, values);
-    assert(count == 0); // max_items == 1
-
-    count = parse_integers("1:2:3:4:5", ':', 3, values);
-    assert(count == 0); // max_items == 3
-
-    count = parse_integers(":1234", ':', 5, values);
-    assert(count == 0); // invalid
-
-    count = parse_integers("1234:", ':', 5, values);
-    assert(count == 0); // invalid
-
-    count = parse_integers("1234:", ':', 1, values);
-    assert(count == 0); // invalid, even when max_items == 1
-
-    count = parse_integers("1234::5678", ':', 5, values);
-    assert(count == 0); // invalid
-}
-
 static void test_parse_integer_with_suffix(void) {
     long value;
     bool ok = parse_integer_with_suffix("1234", &value);
@@ -298,7 +249,6 @@ int main(void) {
     test_strquote();
     test_utf8_truncate();
     test_parse_integer();
-    test_parse_integers();
     test_parse_integer_with_suffix();
     return 0;
 }

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

@@ -22,10 +22,13 @@ public final class Device {
 
     private final ServiceManager serviceManager = new ServiceManager();
 
+
+    private final int lockedVideoOrientation;
     private ScreenInfo screenInfo;
     private RotationListener rotationListener;
 
     public Device(Options options) {
+        lockedVideoOrientation = options.getLockedVideoOrientation();
         screenInfo = computeScreenInfo(options.getCrop(), options.getMaxSize());
         registerRotationWatcher(new IRotationWatcher.Stub() {
             @Override
@@ -48,11 +51,11 @@ public final class Device {
 
     private ScreenInfo computeScreenInfo(Rect crop, int maxSize) {
         DisplayInfo displayInfo = serviceManager.getDisplayManager().getDisplayInfo();
-        boolean rotated = (displayInfo.getRotation() & 1) != 0;
+        int rotation = displayInfo.getRotation();
         Size deviceSize = displayInfo.getSize();
         Rect contentRect = new Rect(0, 0, deviceSize.getWidth(), deviceSize.getHeight());
         if (crop != null) {
-            if (rotated) {
+            if (rotation % 2 != 0) { // 180s preserve dimensions
                 // the crop (provided by the user) is expressed in the natural orientation
                 crop = flipRect(crop);
             }
@@ -64,7 +67,7 @@ public final class Device {
         }
 
         Size videoSize = computeVideoSize(contentRect.width(), contentRect.height(), maxSize);
-        return new ScreenInfo(contentRect, videoSize, rotated);
+        return new ScreenInfo(contentRect, videoSize, rotation);
     }
 
     private static String formatCrop(Rect rect) {
@@ -99,22 +102,55 @@ public final class Device {
         return new Size(w, h);
     }
 
+    /**
+     * Return the rotation to apply to the device rotation to get the requested locked video orientation
+     *
+     * @param deviceRotation the device rotation
+     * @return the rotation offset
+     */
+    public int getVideoRotation(int deviceRotation) {
+        if (lockedVideoOrientation == -1) {
+            // no offset
+            return 0;
+        }
+        return (deviceRotation + 4 - lockedVideoOrientation) % 4;
+    }
+
+    /**
+     * Return the rotation to apply to the requested locked video orientation to get the device rotation
+     * @param deviceRotation the device rotation
+     * @return the (reverse) rotation offset
+     */
+    private int getReverseVideoRotation(int deviceRotation) {
+        if (lockedVideoOrientation == -1) {
+            // no offset
+            return 0;
+        }
+        return (lockedVideoOrientation + 4 - deviceRotation) % 4;
+    }
+
     public Point getPhysicalPoint(Position position) {
         // it hides the field on purpose, to read it with a lock
         @SuppressWarnings("checkstyle:HiddenField")
         ScreenInfo screenInfo = getScreenInfo(); // read with synchronization
         Size videoSize = screenInfo.getVideoSize();
-        Size clientVideoSize = position.getScreenSize();
+
+        int deviceRotation = screenInfo.getRotation();
+        int reverseVideoRotation = getReverseVideoRotation(deviceRotation);
+        // reverse the video rotation to apply the events
+        Position devicePosition = position.rotate(reverseVideoRotation);
+
+        Size clientVideoSize = devicePosition.getScreenSize();
         if (!videoSize.equals(clientVideoSize)) {
             // The client sends a click relative to a video with wrong dimensions,
             // the device may have been rotated since the event was generated, so ignore the event
             return null;
         }
         Rect contentRect = screenInfo.getContentRect();
-        Point point = position.getPoint();
-        int scaledX = contentRect.left + point.getX() * contentRect.width() / videoSize.getWidth();
-        int scaledY = contentRect.top + point.getY() * contentRect.height() / videoSize.getHeight();
-        return new Point(scaledX, scaledY);
+        Point point = devicePosition.getPoint();
+        int convertedX = contentRect.left + point.getX() * contentRect.width() / videoSize.getWidth();
+        int convertedY = contentRect.top + point.getY() * contentRect.height() / videoSize.getHeight();
+        return new Point(convertedX, convertedY);
     }
 
     public static String getDeviceName() {

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

@@ -6,6 +6,7 @@ public class Options {
     private int maxSize;
     private int bitRate;
     private int maxFps;
+    private int lockedVideoOrientation;
     private boolean tunnelForward;
     private Rect crop;
     private boolean sendFrameMeta; // send PTS so that the client may record properly
@@ -35,6 +36,14 @@ public class Options {
         this.maxFps = maxFps;
     }
 
+    public int getLockedVideoOrientation() {
+        return lockedVideoOrientation;
+    }
+
+    public void setLockedVideoOrientation(int lockedVideoOrientation) {
+        this.lockedVideoOrientation = lockedVideoOrientation;
+    }
+
     public boolean isTunnelForward() {
         return tunnelForward;
     }

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

@@ -23,6 +23,19 @@ public class Position {
         return screenSize;
     }
 
+    public Position rotate(int rotation) {
+        switch (rotation) {
+            case 1:
+                return new Position(new Point(screenSize.getHeight() - point.getY(), point.getX()), screenSize.rotate());
+            case 2:
+                return new Position(new Point(screenSize.getWidth() - point.getX(), screenSize.getHeight() - point.getY()), screenSize);
+            case 3:
+                return new Position(new Point(point.getY(), screenSize.getWidth() - point.getX()), screenSize.rotate());
+            default:
+                return this;
+        }
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {

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

@@ -19,7 +19,6 @@ public class ScreenEncoder implements Device.RotationListener {
 
     private static final int DEFAULT_I_FRAME_INTERVAL = 10; // seconds
     private static final int REPEAT_FRAME_DELAY_US = 100_000; // repeat after 100ms
-    private static final String KEY_MAX_FPS_TO_ENCODER = "max-fps-to-encoder";
 
     private static final int NO_PTS = -1;
 
@@ -28,19 +27,21 @@ public class ScreenEncoder implements Device.RotationListener {
 
     private int bitRate;
     private int maxFps;
+    private int lockedVideoOrientation;
     private int iFrameInterval;
     private boolean sendFrameMeta;
     private long ptsOrigin;
 
-    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int iFrameInterval) {
+    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int lockedVideoOrientation, int iFrameInterval) {
         this.sendFrameMeta = sendFrameMeta;
         this.bitRate = bitRate;
         this.maxFps = maxFps;
+        this.lockedVideoOrientation = lockedVideoOrientation;
         this.iFrameInterval = iFrameInterval;
     }
 
-    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps) {
-        this(sendFrameMeta, bitRate, maxFps, DEFAULT_I_FRAME_INTERVAL);
+    public ScreenEncoder(boolean sendFrameMeta, int bitRate, int maxFps, int lockedVideoOrientation) {
+        this(sendFrameMeta, bitRate, maxFps, lockedVideoOrientation, DEFAULT_I_FRAME_INTERVAL);
     }
 
     @Override
@@ -63,12 +64,14 @@ public class ScreenEncoder implements Device.RotationListener {
             do {
                 MediaCodec codec = createCodec();
                 IBinder display = createDisplay();
-                Rect contentRect = device.getScreenInfo().getContentRect();
-                Rect videoRect = device.getScreenInfo().getVideoSize().toRect();
-                setSize(format, videoRect.width(), videoRect.height());
+                ScreenInfo screenInfo = device.getScreenInfo();
+                Rect contentRect = screenInfo.getContentRect();
+                Rect videoRect = screenInfo.getVideoSize().toRect();
+                int videoRotation = device.getVideoRotation(screenInfo.getRotation());
+                setSize(format, videoRotation, videoRect.width(), videoRect.height());
                 configure(codec, format);
                 Surface surface = codec.createInputSurface();
-                setDisplaySurface(display, surface, contentRect, videoRect);
+                setDisplaySurface(display, surface, videoRotation, contentRect, videoRect);
                 codec.start();
                 try {
                     alive = encode(codec, fd);
@@ -151,10 +154,11 @@ public class ScreenEncoder implements Device.RotationListener {
         // display the very first frame, and recover from bad quality when no new frames
         format.setLong(MediaFormat.KEY_REPEAT_PREVIOUS_FRAME_AFTER, REPEAT_FRAME_DELAY_US); // µs
         if (maxFps > 0) {
-            // The key existed privately before Android 10:
-            // <https://android.googlesource.com/platform/frameworks/base/+/625f0aad9f7a259b6881006ad8710adce57d1384%5E%21/>
-            // <https://github.com/Genymobile/scrcpy/issues/488#issuecomment-567321437>
-            format.setFloat(KEY_MAX_FPS_TO_ENCODER, maxFps);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+                format.setFloat(MediaFormat.KEY_MAX_FPS_TO_ENCODER, maxFps);
+            } else {
+                Ln.w("Max FPS is only supported since Android 10, the option has been ignored");
+            }
         }
         return format;
     }
@@ -167,16 +171,21 @@ public class ScreenEncoder implements Device.RotationListener {
         codec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
     }
 
-    private static void setSize(MediaFormat format, int width, int height) {
-        format.setInteger(MediaFormat.KEY_WIDTH, width);
-        format.setInteger(MediaFormat.KEY_HEIGHT, height);
+    private static void setSize(MediaFormat format, int orientation, int width, int height) {
+        if (orientation % 2 == 0) {
+            format.setInteger(MediaFormat.KEY_WIDTH, width);
+            format.setInteger(MediaFormat.KEY_HEIGHT, height);
+            return;
+        }
+        format.setInteger(MediaFormat.KEY_WIDTH, height);
+        format.setInteger(MediaFormat.KEY_HEIGHT, width);
     }
 
-    private static void setDisplaySurface(IBinder display, Surface surface, Rect deviceRect, Rect displayRect) {
+    private static void setDisplaySurface(IBinder display, Surface surface, int orientation, Rect deviceRect, Rect displayRect) {
         SurfaceControl.openTransaction();
         try {
             SurfaceControl.setDisplaySurface(display, surface);
-            SurfaceControl.setDisplayProjection(display, 0, deviceRect, displayRect);
+            SurfaceControl.setDisplayProjection(display, orientation, deviceRect, displayRect);
             SurfaceControl.setDisplayLayerStack(display, 0);
         } finally {
             SurfaceControl.closeTransaction();

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

@@ -5,12 +5,12 @@ import android.graphics.Rect;
 public final class ScreenInfo {
     private final Rect contentRect; // device size, possibly cropped
     private final Size videoSize;
-    private final boolean rotated;
+    private final int rotation;
 
-    public ScreenInfo(Rect contentRect, Size videoSize, boolean rotated) {
+    public ScreenInfo(Rect contentRect, Size videoSize, int rotation) {
         this.contentRect = contentRect;
         this.videoSize = videoSize;
-        this.rotated = rotated;
+        this.rotation = rotation;
     }
 
     public Rect getContentRect() {
@@ -21,11 +21,25 @@ public final class ScreenInfo {
         return videoSize;
     }
 
-    public ScreenInfo withRotation(int rotation) {
-        boolean newRotated = (rotation & 1) != 0;
-        if (rotated == newRotated) {
+    public int getRotation() {
+        return rotation;
+    }
+
+    public ScreenInfo withRotation(int newRotation) {
+        if (newRotation == rotation) {
             return this;
         }
-        return new ScreenInfo(Device.flipRect(contentRect), videoSize.rotate(), newRotated);
+        // true if changed between portrait and landscape
+        boolean orientationChanged = (rotation + newRotation) % 2 != 0;
+        Rect newContentRect;
+        Size newVideoSize;
+        if (orientationChanged) {
+            newContentRect = Device.flipRect(contentRect);
+            newVideoSize = videoSize.rotate();
+        } else {
+            newContentRect = contentRect;
+            newVideoSize = videoSize;
+        }
+        return new ScreenInfo(newContentRect, newVideoSize, newRotation);
     }
 }

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

@@ -19,7 +19,8 @@ public final class Server {
         final Device device = new Device(options);
         boolean tunnelForward = options.isTunnelForward();
         try (DesktopConnection connection = DesktopConnection.open(device, tunnelForward)) {
-            ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps());
+            ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps(),
+                    options.getLockedVideoOrientation());
 
             if (options.getControl()) {
                 Controller controller = new Controller(device, connection);
@@ -79,8 +80,8 @@ public final class Server {
                     "The server version (" + clientVersion + ") does not match the client " + "(" + BuildConfig.VERSION_NAME + ")");
         }
 
-        if (args.length != 8) {
-            throw new IllegalArgumentException("Expecting 8 parameters");
+        if (args.length != 9) {
+            throw new IllegalArgumentException("Expecting 9 parameters");
         }
 
         Options options = new Options();
@@ -94,17 +95,20 @@ public final class Server {
         int maxFps = Integer.parseInt(args[3]);
         options.setMaxFps(maxFps);
 
+        int lockedVideoOrientation = Integer.parseInt(args[4]);
+        options.setLockedVideoOrientation(lockedVideoOrientation);
+
         // use "adb forward" instead of "adb tunnel"? (so the server must listen)
-        boolean tunnelForward = Boolean.parseBoolean(args[4]);
+        boolean tunnelForward = Boolean.parseBoolean(args[5]);
         options.setTunnelForward(tunnelForward);
 
-        Rect crop = parseCrop(args[5]);
+        Rect crop = parseCrop(args[6]);
         options.setCrop(crop);
 
-        boolean sendFrameMeta = Boolean.parseBoolean(args[6]);
+        boolean sendFrameMeta = Boolean.parseBoolean(args[7]);
         options.setSendFrameMeta(sendFrameMeta);
 
-        boolean control = Boolean.parseBoolean(args[7]);
+        boolean control = Boolean.parseBoolean(args[8]);
         options.setControl(control);
 
         return options;

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

@@ -73,7 +73,7 @@ public final class Workarounds {
             mInitialApplicationField.set(activityThread, app);
         } catch (Throwable throwable) {
             // this is a workaround, so failing is not an error
-            Ln.d("Could not fill app info: " + throwable.getMessage());
+            Ln.w("Could not fill app info: " + throwable.getMessage());
         }
     }
 }