Name server parameters

The options values to configure the server were identified by their
command-line argument index.

Now that there are a lot of arguments, many of them being booleans, it
became unreadable and error-prone.

Identify the arguments by a key string instead.

BUILD.md

@@ -249,10 +249,10 @@ You can then [run](README.md#run) _scrcpy_.
 
 ## Prebuilt server
 
- - [`scrcpy-server-v1.12.1`][direct-scrcpy-server]  
-   _(SHA-256: 63e569c8a1d0c1df31d48c4214871c479a601782945fed50c1e61167d78266ea)_
+ - [`scrcpy-server-v1.13`][direct-scrcpy-server]  
+   _(SHA-256: 5fee64ca1ccdc2f38550f31f5353c66de3de30c2e929a964e30fa2d005d5f885)_
 
-[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-server-v1.12.1
+[direct-scrcpy-server]: https://github.com/Genymobile/scrcpy/releases/download/v1.13/scrcpy-server-v1.13
 
 Download the prebuilt server somewhere, and specify its path during the Meson
 configuration:

Makefile.CrossWindows

@@ -100,30 +100,30 @@ dist-win32: build-server build-win32 build-win32-noconsole
 	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)/$(WIN32_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win32-shared/bin/swscale-5.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win32-shared/bin/avutil-56.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win32-shared/bin/avcodec-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win32-shared/bin/avformat-58.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win32-shared/bin/swresample-3.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win32-shared/bin/swscale-5.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.10/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.12/i686-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN32_TARGET_DIR)/"
 
 dist-win64: build-server build-win64 build-win64-noconsole
 	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)/$(WIN64_TARGET_DIR)/scrcpy-noconsole.exe"
-	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/ffmpeg-4.2.1-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win64-shared/bin/avutil-56.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win64-shared/bin/avcodec-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win64-shared/bin/avformat-58.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win64-shared/bin/swresample-3.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/ffmpeg-4.2.2-win64-shared/bin/swscale-5.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/adb.exe "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 	cp prebuilt-deps/platform-tools/AdbWinUsbApi.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
-	cp prebuilt-deps/SDL2-2.0.10/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
+	cp prebuilt-deps/SDL2-2.0.12/x86_64-w64-mingw32/bin/SDL2.dll "$(DIST)/$(WIN64_TARGET_DIR)/"
 
 zip-win32: dist-win32
 	cd "$(DIST)/$(WIN32_TARGET_DIR)"; \

README.md

@@ -1,4 +1,4 @@
-# scrcpy (v1.12.1)
+# scrcpy (v1.13)
 
 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.
@@ -37,7 +37,7 @@ control it using keyboard and mouse.
 
 ### Linux
 
-In Debian (_testing_ and _sid_ for now):
+On Debian (_testing_ and _sid_ for now) and Ubuntu (20.04):
 
 ```
 apt install scrcpy
@@ -69,10 +69,10 @@ hard).
 For Windows, for simplicity, a prebuilt archive with all the dependencies
 (including `adb`) is available:
 
- - [`scrcpy-win64-v1.12.1.zip`][direct-win64]  
-   _(SHA-256: 57d34b6d16cfd9fe169bc37c4df58ebd256d05c1ea3febc63d9cb0a027ab47c9)_
+ - [`scrcpy-win64-v1.13.zip`][direct-win64]  
+   _(SHA-256: 806aafc00d4db01513193addaa24f47858893ba5efe75770bfef6ae1ea987d27)_
 
-[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.12.1/scrcpy-win64-v1.12.1.zip
+[direct-win64]: https://github.com/Genymobile/scrcpy/releases/download/v1.13/scrcpy-win64-v1.13.zip
 
 It is also available in [Chocolatey]:
 
@@ -270,7 +270,7 @@ You could use [AutoAdb]:
 autoadb scrcpy -s '{}'
 ```
 
-[AutoAdb]: https://github.com/rom1v/usbaudio
+[AutoAdb]: https://github.com/rom1v/autoadb
 
 #### SSH tunnel
 
@@ -396,6 +396,18 @@ The list of display ids can be retrieved by:
 adb shell dumpsys display   # search "mDisplayId=" in the output
 ```
 
+#### Stay awake
+
+To prevent the device to sleep after some delay:
+
+```bash
+scrcpy --stay-awake
+scrcpy -w
+```
+
+The initial state is restored when scrcpy is closed.
+
+
 #### Turn screen off
 
 It is possible to turn the device screen off while mirroring on start with a
@@ -410,6 +422,14 @@ Or by pressing `Ctrl`+`o` at any time.
 
 To turn it back on, press `POWER` (or `Ctrl`+`p`).
 
+It can be useful to also prevent the device to sleep:
+
+```bash
+scrcpy --turn-screen-off --stay-awake
+scrcpy -Sw
+```
+
+
 #### Render expired frames
 
 By default, to minimize latency, _scrcpy_ always renders the last decoded frame
@@ -429,7 +449,8 @@ device).
 
 Android provides this feature in _Developers options_.
 
-_Scrcpy_ provides an option to enable this feature on start and disable on exit:
+_Scrcpy_ provides an option to enable this feature on start and restore the
+initial value on exit:
 
 ```bash
 scrcpy --show-touches

app/meson.build

@@ -116,6 +116,9 @@ conf.set('DEFAULT_LOCK_VIDEO_ORIENTATION', '-1')  # -1: unlocked
 # 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'))
 

app/scrcpy.1

@@ -136,7 +136,7 @@ Turn the device screen off immediately.
 
 .TP
 .B \-t, \-\-show\-touches
-Enable "show touches" on start, disable on quit.
+Enable "show touches" on start, restore the initial value on exit..
 
 It only shows physical touches (not clicks from scrcpy).
 
@@ -144,6 +144,10 @@ It only shows physical touches (not clicks from scrcpy).
 .B \-v, \-\-version
 Print the version of scrcpy.
 
+.TP
+.B \-w, \-\-stay-awake
+Keep the device on while scrcpy is running.
+
 .TP
 .B \-\-window\-borderless
 Disable window decorations (display borderless window).

app/src/cli.c

@@ -130,12 +130,16 @@ scrcpy_print_usage(const char *arg0) {
         "        Turn the device screen off immediately.\n"
         "\n"
         "    -t, --show-touches\n"
-        "        Enable \"show touches\" on start, disable on quit.\n"
+        "        Enable \"show touches\" on start, restore the initial value\n"
+        "        on exit.\n"
         "        It only shows physical touches (not clicks from scrcpy).\n"
         "\n"
         "    -v, --version\n"
         "        Print the version of scrcpy.\n"
         "\n"
+        "    -w, --stay-awake\n"
+        "        Keep the device on while scrcpy is running.\n"
+        "\n"
         "    --window-borderless\n"
         "        Disable window decorations (display borderless window).\n"
         "\n"
@@ -486,6 +490,7 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"no-display",             no_argument,       NULL, 'N'},
         {"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},
         {"record",                 required_argument, NULL, 'r'},
         {"record-format",          required_argument, NULL, OPT_RECORD_FORMAT},
@@ -495,8 +500,8 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         {"rotation",               required_argument, NULL, OPT_ROTATION},
         {"serial",                 required_argument, NULL, 's'},
         {"show-touches",           no_argument,       NULL, 't'},
+        {"stay-awake",             no_argument,       NULL, 'w'},
         {"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},
@@ -513,7 +518,7 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
     optind = 0; // reset to start from the first argument in tests
 
     int c;
-    while ((c = getopt_long(argc, argv, "b:c:fF:hm:nNp:r:s:StTv", long_options,
+    while ((c = getopt_long(argc, argv, "b:c:fF:hm:nNp:r:s:StTvw", long_options,
                             NULL)) != -1) {
         switch (c) {
             case 'b':
@@ -593,6 +598,9 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
             case 'v':
                 args->version = true;
                 break;
+            case 'w':
+                opts->stay_awake = true;
+                break;
             case OPT_RENDER_EXPIRED_FRAMES:
                 opts->render_expired_frames = true;
                 break;
@@ -675,5 +683,10 @@ scrcpy_parse_args(struct scrcpy_cli_args *args, int argc, char *argv[]) {
         return false;
     }
 
+    if (!opts->control && opts->stay_awake) {
+        LOGE("Could not request to stay awake if control is disabled");
+        return false;
+    }
+
     return true;
 }

app/src/scrcpy.c

@@ -128,7 +128,6 @@ enum event_result {
     EVENT_RESULT_CONTINUE,
     EVENT_RESULT_STOPPED_BY_USER,
     EVENT_RESULT_STOPPED_BY_EOS,
-    EVENT_RESULT_STOPPED_BY_ERROR,
 };
 
 static enum event_result
@@ -151,9 +150,7 @@ handle_event(SDL_Event *event, bool control) {
             }
             break;
         case SDL_WINDOWEVENT:
-            if (!screen_handle_window_event(&screen, &event->window)) {
-                return EVENT_RESULT_STOPPED_BY_ERROR;
-            }
+            screen_handle_window_event(&screen, &event->window);
             break;
         case SDL_TEXTINPUT:
             if (!control) {
@@ -225,9 +222,6 @@ event_loop(bool display, bool control) {
             case EVENT_RESULT_STOPPED_BY_EOS:
                 LOGW("Device disconnected");
                 return false;
-            case EVENT_RESULT_STOPPED_BY_ERROR:
-                LOGC("Stopping due to unrecoverable error");
-                return false;
             case EVENT_RESULT_CONTINUE:
                 break;
         }
@@ -235,21 +229,6 @@ event_loop(bool display, bool control) {
     return false;
 }
 
-static process_t
-set_show_touches_enabled(const char *serial, bool enabled) {
-    const char *value = enabled ? "1" : "0";
-    const char *const adb_cmd[] = {
-        "shell", "settings", "put", "system", "show_touches", value
-    };
-    return adb_execute(serial, adb_cmd, ARRAY_LEN(adb_cmd));
-}
-
-static void
-wait_show_touches(process_t process) {
-    // reap the process, ignore the result
-    process_check_success(process, "show_touches");
-}
-
 static SDL_LogPriority
 sdl_priority_from_av_level(int level) {
     switch (level) {
@@ -298,19 +277,13 @@ scrcpy(const struct scrcpy_options *options) {
         .lock_video_orientation = options->lock_video_orientation,
         .control = options->control,
         .display_id = options->display_id,
+        .show_touches = options->show_touches,
+        .stay_awake = options->stay_awake,
     };
     if (!server_start(&server, options->serial, &params)) {
         return false;
     }
 
-    process_t proc_show_touches = PROCESS_NONE;
-    bool show_touches_waited;
-    if (options->show_touches) {
-        LOGI("Enable show_touches");
-        proc_show_touches = set_show_touches_enabled(options->serial, true);
-        show_touches_waited = false;
-    }
-
     bool ret = false;
 
     bool fps_counter_initialized = false;
@@ -427,11 +400,6 @@ scrcpy(const struct scrcpy_options *options) {
         }
     }
 
-    if (options->show_touches) {
-        wait_show_touches(proc_show_touches);
-        show_touches_waited = true;
-    }
-
     input_manager.prefer_text = options->prefer_text;
 
     ret = event_loop(options->display, options->control);
@@ -488,16 +456,6 @@ end:
         fps_counter_destroy(&fps_counter);
     }
 
-    if (options->show_touches) {
-        if (!show_touches_waited) {
-            // wait the process which enabled "show touches"
-            wait_show_touches(proc_show_touches);
-        }
-        LOGI("Disable show_touches");
-        proc_show_touches = set_show_touches_enabled(options->serial, false);
-        wait_show_touches(proc_show_touches);
-    }
-
     server_destroy(&server);
 
     return ret;

app/src/scrcpy.h

@@ -38,6 +38,7 @@ struct scrcpy_options {
     bool prefer_text;
     bool window_borderless;
     bool mipmaps;
+    bool stay_awake;
 };
 
 #define SCRCPY_OPTIONS_DEFAULT { \
@@ -72,6 +73,7 @@ struct scrcpy_options {
     .prefer_text = false, \
     .window_borderless = false, \
     .mipmaps = true, \
+    .stay_awake = false, \
 }
 
 bool

app/src/screen.c

@@ -217,9 +217,10 @@ screen_init_rendering(struct screen *screen, const char *window_title,
 
     struct size window_size =
         get_initial_optimal_size(content_size, window_width, window_height);
-    uint32_t window_flags = SDL_WINDOW_HIDDEN
-                          | SDL_WINDOW_RESIZABLE
-                          | SDL_WINDOW_ALLOW_HIGHDPI;
+    uint32_t window_flags = SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE;
+#ifdef HIDPI_SUPPORT
+    window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
+#endif
     if (always_on_top) {
 #ifdef SCRCPY_SDL_HAS_WINDOW_ALWAYS_ON_TOP
         window_flags |= SDL_WINDOW_ALWAYS_ON_TOP;
@@ -309,11 +310,6 @@ screen_init_rendering(struct screen *screen, const char *window_title,
 
     screen->windowed_window_size = window_size;
 
-    struct scale_ratio *rw = &screen->scale.w;
-    struct scale_ratio *rh = &screen->scale.h;
-    SDL_GetWindowSize(screen->window, &rw->window, &rh->window);
-    SDL_GL_GetDrawableSize(screen->window, &rw->drawable, &rh->drawable);
-
     return true;
 }
 
@@ -523,74 +519,11 @@ screen_resize_to_pixel_perfect(struct screen *screen) {
                                             content_size.height);
 }
 
-bool
-screen_fix_hidpi(struct screen *screen) {
-    // If the scale ratio has changed, recreate the renderer to fix HiDPI issues
-    // <https://github.com/Genymobile/scrcpy/issues/15>
-
-    int ww, wh, dw, dh;
-    SDL_GetWindowSize(screen->window, &ww, &wh);
-    SDL_GL_GetDrawableSize(screen->window, &dw, &dh);
-
-    struct scale_ratio *rw = &screen->scale.w;
-    struct scale_ratio *rh = &screen->scale.h;
-
-    if (ww * rw->drawable == dw * rw->window &&
-        wh * rh->drawable == dh * rh->window) {
-        // same ratio, both horizontally and vertically, nothing to do
-        return true;
-    }
-
-    // update the current scale
-    rw->window = ww;
-    rh->window = wh;
-    rw->drawable = dw;
-    rh->drawable = dh;
-
-    if (screen->texture) {
-        SDL_DestroyTexture(screen->texture);
-    }
-    if (screen->renderer) {
-        SDL_DestroyRenderer(screen->renderer);
-    }
-
-    screen->renderer = SDL_CreateRenderer(screen->window, -1,
-                                          SDL_RENDERER_ACCELERATED);
-    if (!screen->renderer) {
-        LOGC("Could not create renderer: %s", SDL_GetError());
-        return false;
-    }
-
-    struct size content_size = screen->content_size;
-    if (SDL_RenderSetLogicalSize(screen->renderer, content_size.width,
-                                 content_size.height)) {
-        LOGE("Could not set renderer logical size: %s", SDL_GetError());
-        SDL_DestroyRenderer(screen->renderer);
-        return false;
-    }
-
-    // FIXME this is wrong, we must update the last frame to the new texture,
-    // but we don't have it anymore!
-    screen->texture = create_texture(screen);
-    if (!screen->texture) {
-        LOGC("Could not create texture: %s", SDL_GetError());
-        SDL_DestroyRenderer(screen->renderer);
-        return false;
-    }
-
-    LOGD("Renderer and texture reset");
-    return true;
-}
-
-bool
+void
 screen_handle_window_event(struct screen *screen,
                            const SDL_WindowEvent *event) {
     switch (event->event) {
         case SDL_WINDOWEVENT_EXPOSED:
-            if (!screen_fix_hidpi(screen)) {
-                // unrecoverable
-                return false;
-            }
             screen_render(screen);
             break;
         case SDL_WINDOWEVENT_SIZE_CHANGED:
@@ -626,8 +559,6 @@ screen_handle_window_event(struct screen *screen,
             apply_windowed_size(screen);
             break;
     }
-
-    return true;
 }
 
 struct point

app/src/screen.h

@@ -13,11 +13,6 @@
 
 struct video_buffer;
 
-struct scale_ratio {
-    int window;
-    int drawable;
-};
-
 struct screen {
     SDL_Window *window;
     SDL_Renderer *renderer;
@@ -38,11 +33,6 @@ struct screen {
     bool maximized;
     bool no_window;
     bool mipmaps;
-
-    struct {
-        struct scale_ratio w;
-        struct scale_ratio h;
-    } scale;
 };
 
 #define SCREEN_INITIALIZER { \
@@ -73,16 +63,6 @@ struct screen {
     .maximized = false, \
     .no_window = false, \
     .mipmaps = false, \
-    .scale = { \
-        .w = { \
-            .window = 0, \
-            .drawable = 0, \
-        }, \
-        .h = { \
-            .window = 0, \
-            .drawable = 0, \
-        }, \
-    } \
 }
 
 // initialize default values
@@ -131,8 +111,7 @@ void
 screen_set_rotation(struct screen *screen, unsigned rotation);
 
 // react to window events
-// return true on success, false on unrecoverable error
-bool
+void
 screen_handle_window_event(struct screen *screen, const SDL_WindowEvent *event);
 
 // convert point from window coordinates to frame coordinates

app/src/server.c

@@ -231,22 +231,17 @@ enable_tunnel_any_port(struct server *server, struct port_range 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];
-    char display_id_string[6];
-    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);
-    const char *const cmd[] = {
-        "shell",
-        "CLASSPATH=" DEVICE_SERVER_PATH,
-        "app_process",
+    process_t result = PROCESS_NONE;
+
+    char *cmd[128];
+    int i = 0;
+    cmd[i++] = "shell";
+    cmd[i++] = "CLASSPATH=" DEVICE_SERVER_PATH;
+    cmd[i++] = "app_process";
+
 #ifdef SERVER_DEBUGGER
 # define SERVER_DEBUGGER_PORT "5005"
+    cmd[i++] =
 # ifdef SERVER_DEBUGGER_METHOD_NEW
         /* Android 9 and above */
         "-XjdwpProvider:internal -XjdwpOptions:transport=dt_socket,suspend=y,server=y,address="
@@ -254,21 +249,38 @@ execute_server(struct server *server, const struct server_params *params) {
         /* Android 8 and below */
         "-agentlib:jdwp=transport=dt_socket,suspend=y,server=y,address="
 # endif
-            SERVER_DEBUGGER_PORT,
+            SERVER_DEBUGGER_PORT;
 #endif
-        "/", // unused
-        "com.genymobile.scrcpy.Server",
-        SCRCPY_VERSION,
-        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)
-        params->control ? "true" : "false",
-        display_id_string,
-    };
+
+    cmd[i++] = "/"; // unused
+    cmd[i++] = "com.genymobile.scrcpy.Server";
+    cmd[i++] = SCRCPY_VERSION;
+
+    int dyn_index = i; // from there, the strings are allocated
+#define ADD_PARAM(fmt, ...) \
+    cmd[i] = sc_asprintf(fmt, ## __VA_ARGS__); \
+    if (!cmd[i++]) { \
+        goto end; \
+    }
+
+#define STRBOOL(p) (p ? "true" : "false")
+
+    ADD_PARAM("max_size=%"PRIu16, params->max_size);
+    ADD_PARAM("bit_rate=%"PRIu32, params->bit_rate);
+    ADD_PARAM("max_fps=%"PRIu16, params->max_fps);
+    ADD_PARAM("lock_video_orientation=%"PRIi8, params->lock_video_orientation);
+    ADD_PARAM("tunnel_forward=%s", STRBOOL(server->tunnel_forward));
+    ADD_PARAM("crop=%s", params->crop ? params->crop : "");
+    // always send frame meta (packet boundaries + timestamp)
+    ADD_PARAM("send_frame_meta=true");
+    ADD_PARAM("control=%s", STRBOOL(params->control));
+    ADD_PARAM("display_id=%"PRIu16, params->display_id);
+    ADD_PARAM("show_touches=%s", STRBOOL(params->show_touches));
+    ADD_PARAM("stay_awake=%s", STRBOOL(params->stay_awake));
+
+#undef ADD_PARAM
+#undef STRBOOL
+
 #ifdef SERVER_DEBUGGER
     LOGI("Server debugger waiting for a client on device port "
          SERVER_DEBUGGER_PORT "...");
@@ -280,7 +292,14 @@ 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]));
+    result = adb_execute(server->serial, (const char **) cmd, i);
+
+end:
+    for (int j = i; j > dyn_index; --j) {
+        free(cmd[j - 1]);
+    }
+
+    return result;
 }
 
 static socket_t

app/src/server.h

@@ -51,6 +51,8 @@ struct server_params {
     int8_t lock_video_orientation;
     bool control;
     uint16_t display_id;
+    bool show_touches;
+    bool stay_awake;
 };
 
 // init default values

app/src/util/str_util.c

@@ -1,7 +1,9 @@
 #include "str_util.h"
 
+#include <assert.h>
 #include <errno.h>
 #include <limits.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -195,3 +197,33 @@ utf8_from_wide_char(const wchar_t *ws) {
 }
 
 #endif
+
+char *
+sc_asprintf(const char *fmt, ...) {
+    va_list va;
+    va_start(va, fmt);
+    char *s = sc_vasprintf(fmt, va);
+    va_end(va);
+    return s;
+}
+
+char *
+sc_vasprintf(const char *fmt, va_list ap) {
+    va_list va;
+    va_copy(va, ap);
+    int len = vsnprintf(NULL, 0, fmt, va);
+    va_end(va);
+
+    char *str = malloc(len + 1);
+    if (!str) {
+        return NULL;
+    }
+
+    va_copy(va, ap);
+    int len2 = vsprintf(str, fmt, va);
+    (void) len2;
+    assert(len == len2);
+    va_end(va);
+
+    return str;
+}

app/src/util/str_util.h

@@ -1,8 +1,10 @@
 #ifndef STRUTIL_H
 #define STRUTIL_H
 
+#include <stdarg.h>
 #include <stdbool.h>
 #include <stddef.h>
+#include <stdio.h>
 
 #include "config.h"
 
@@ -57,4 +59,13 @@ char *
 utf8_from_wide_char(const wchar_t *s);
 #endif
 
+// compatibility function similar to asprintf()
+// (but returning the resulting string for convenience)
+char *
+sc_asprintf(const char *fmt, ...)
+__attribute__((format(printf, 1, 2)));
+
+char *
+sc_vasprintf(const char *fmt, va_list ap);
+
 #endif

cross_win32.txt

@@ -15,6 +15,6 @@ cpu = 'i686'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.2.1-win32-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.2.1-win32-dev'
-prebuilt_sdl2 = 'SDL2-2.0.10/i686-w64-mingw32'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.2.2-win32-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.2.2-win32-dev'
+prebuilt_sdl2 = 'SDL2-2.0.12/i686-w64-mingw32'

cross_win64.txt

@@ -15,6 +15,6 @@ cpu = 'x86_64'
 endian = 'little'
 
 [properties]
-prebuilt_ffmpeg_shared = 'ffmpeg-4.2.1-win64-shared'
-prebuilt_ffmpeg_dev = 'ffmpeg-4.2.1-win64-dev'
-prebuilt_sdl2 = 'SDL2-2.0.10/x86_64-w64-mingw32'
+prebuilt_ffmpeg_shared = 'ffmpeg-4.2.2-win64-shared'
+prebuilt_ffmpeg_dev = 'ffmpeg-4.2.2-win64-dev'
+prebuilt_sdl2 = 'SDL2-2.0.12/x86_64-w64-mingw32'

meson.build

@@ -1,5 +1,5 @@
 project('scrcpy', 'c',
-        version: '1.12.1',
+        version: '1.13',
         meson_version: '>= 0.48',
         default_options: [
             'c_std=c11',

meson_options.txt

@@ -4,5 +4,6 @@ option('crossbuild_windows', type: 'boolean', value: false, description: 'Build
 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

@@ -10,29 +10,29 @@ 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-4.2.1-win32-shared.zip \
-		9208255f409410d95147151d7e829b5699bf8d91bfe1e81c3f470f47c2fa66d2 \
-		ffmpeg-4.2.1-win32-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/shared/ffmpeg-4.2.2-win32-shared.zip \
+		ab5d603aaa54de360db2c2ffe378c82376b9343ea1175421dd644639aa07ee31 \
+		ffmpeg-4.2.2-win32-shared
 
 prepare-ffmpeg-dev-win32:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.2.1-win32-dev.zip \
-		c3469e6c5f031cbcc8cba88dee92d6548c5c6b6ff14f4097f18f72a92d0d70c4 \
-		ffmpeg-4.2.1-win32-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win32/dev/ffmpeg-4.2.2-win32-dev.zip \
+		8d224be567a2950cad4be86f4aabdd045bfa52ad758e87c72cedd278613bc6c8 \
+		ffmpeg-4.2.2-win32-dev
 
 prepare-ffmpeg-shared-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.2.1-win64-shared.zip \
-		55063d3cf750a75485c7bf196031773d81a1b25d0980c7db48ecfc7701a42331 \
-		ffmpeg-4.2.1-win64-shared
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/shared/ffmpeg-4.2.2-win64-shared.zip \
+		5aedf268952b7d9f6541dbfcb47cd86a7e7881a3b7ba482fd3bc4ca33bda7bf5 \
+		ffmpeg-4.2.2-win64-shared
 
 prepare-ffmpeg-dev-win64:
-	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.2.1-win64-dev.zip \
-		5af393be5f25c0a71aa29efce768e477c35347f7f8e0d9696767d5b9d405b74e \
-		ffmpeg-4.2.1-win64-dev
+	@./prepare-dep https://ffmpeg.zeranoe.com/builds/win64/dev/ffmpeg-4.2.2-win64-dev.zip \
+		f4885f859c5b0d6663c2a0a4c1cf035b1c60b146402790b796bd3ad84f4f3ca2 \
+		ffmpeg-4.2.2-win64-dev
 
 prepare-sdl2:
-	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.10-mingw.tar.gz \
-		a90a7cddaec4996f4d7be6d80c57ec69b062e132bffc513965f99217f603274a \
-		SDL2-2.0.10
+	@./prepare-dep https://libsdl.org/release/SDL2-devel-2.0.12-mingw.tar.gz \
+		e614a60f797e35ef9f3f96aef3dc6a1d786de3cc7ca6216f97e435c0b6aafc46 \
+		SDL2-2.0.12
 
 prepare-adb:
 	@./prepare-dep https://dl.google.com/android/repository/platform-tools_r29.0.5-windows.zip \

server/build.gradle

@@ -6,8 +6,8 @@ android {
         applicationId "com.genymobile.scrcpy"
         minSdkVersion 21
         targetSdkVersion 29
-        versionCode 14
-        versionName "1.12.1"
+        versionCode 15
+        versionName "1.13"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {

server/build_without_gradle.sh

@@ -12,7 +12,7 @@
 set -e
 
 SCRCPY_DEBUG=false
-SCRCPY_VERSION_NAME=1.12.1
+SCRCPY_VERSION_NAME=1.13
 
 PLATFORM=${ANDROID_PLATFORM:-29}
 BUILD_TOOLS=${ANDROID_BUILD_TOOLS:-29.0.2}

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

@@ -0,0 +1,77 @@
+package com.genymobile.scrcpy;
+
+import com.genymobile.scrcpy.wrappers.ContentProvider;
+import com.genymobile.scrcpy.wrappers.ServiceManager;
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ * Handle the cleanup of scrcpy, even if the main process is killed.
+ * <p>
+ * This is useful to restore some state when scrcpy is closed, even on device disconnection (which kills the scrcpy process).
+ */
+public final class CleanUp {
+
+    public static final String SERVER_PATH = "/data/local/tmp/scrcpy-server.jar";
+
+    private CleanUp() {
+        // not instantiable
+    }
+
+    public static void configure(boolean disableShowTouches, int restoreStayOn) throws IOException {
+        boolean needProcess = disableShowTouches || restoreStayOn != -1;
+        if (needProcess) {
+            startProcess(disableShowTouches, restoreStayOn);
+        } else {
+            // There is no additional clean up to do when scrcpy dies
+            unlinkSelf();
+        }
+    }
+
+    private static void startProcess(boolean disableShowTouches, int restoreStayOn) throws IOException {
+        String[] cmd = {"app_process", "/", CleanUp.class.getName(), String.valueOf(disableShowTouches), String.valueOf(restoreStayOn)};
+
+        ProcessBuilder builder = new ProcessBuilder(cmd);
+        builder.environment().put("CLASSPATH", SERVER_PATH);
+        builder.start();
+    }
+
+    private static void unlinkSelf() {
+        try {
+            new File(SERVER_PATH).delete();
+        } catch (Exception e) {
+            Ln.e("Could not unlink server", e);
+        }
+    }
+
+    public static void main(String... args) {
+        unlinkSelf();
+
+        try {
+            // Wait for the server to die
+            System.in.read();
+        } catch (IOException e) {
+            // Expected when the server is dead
+        }
+
+        Ln.i("Cleaning up");
+
+        boolean disableShowTouches = Boolean.parseBoolean(args[0]);
+        int restoreStayOn = Integer.parseInt(args[1]);
+
+        if (disableShowTouches || restoreStayOn != -1) {
+            ServiceManager serviceManager = new ServiceManager();
+            try (ContentProvider settings = serviceManager.getActivityManager().createSettingsProvider()) {
+                if (disableShowTouches) {
+                    Ln.i("Disabling \"show touches\"");
+                    settings.putValue(ContentProvider.TABLE_SYSTEM, "show_touches", "0");
+                }
+                if (restoreStayOn != -1) {
+                    Ln.i("Restoring \"stay awake\"");
+                    settings.putValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(restoreStayOn));
+                }
+            }
+        }
+    }
+}

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

@@ -1,5 +1,6 @@
 package com.genymobile.scrcpy;
 
+import com.genymobile.scrcpy.wrappers.ContentProvider;
 import com.genymobile.scrcpy.wrappers.InputManager;
 import com.genymobile.scrcpy.wrappers.ServiceManager;
 import com.genymobile.scrcpy.wrappers.SurfaceControl;
@@ -199,4 +200,8 @@ public final class Device {
             wm.thawRotation();
         }
     }
+
+    public ContentProvider createSettingsProvider() {
+        return serviceManager.getActivityManager().createSettingsProvider();
+    }
 }

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

@@ -6,12 +6,14 @@ public class Options {
     private int maxSize;
     private int bitRate;
     private int maxFps;
-    private int lockedVideoOrientation;
+    private int lockedVideoOrientation = -1;
     private boolean tunnelForward;
     private Rect crop;
     private boolean sendFrameMeta; // send PTS so that the client may record properly
     private boolean control;
     private int displayId;
+    private boolean showTouches;
+    private boolean stayAwake;
 
     public int getMaxSize() {
         return maxSize;
@@ -84,4 +86,20 @@ public class Options {
     public void setDisplayId(int displayId) {
         this.displayId = displayId;
     }
+
+    public boolean getShowTouches() {
+        return showTouches;
+    }
+
+    public void setShowTouches(boolean showTouches) {
+        this.showTouches = showTouches;
+    }
+
+    public boolean getStayAwake() {
+        return stayAwake;
+    }
+
+    public void setStayAwake(boolean stayAwake) {
+        this.stayAwake = stayAwake;
+    }
 }

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

@@ -47,9 +47,21 @@ public class ScreenEncoder implements Device.RotationListener {
 
     public void streamScreen(Device device, FileDescriptor fd) throws IOException {
         Workarounds.prepareMainLooper();
-        Workarounds.fillAppInfo();
 
-        MediaFormat format = createFormat(bitRate, maxFps, DEFAULT_I_FRAME_INTERVAL);
+        try {
+            internalStreamScreen(device, fd);
+        } catch (NullPointerException e) {
+            // Retry with workarounds enabled:
+            // <https://github.com/Genymobile/scrcpy/issues/365>
+            // <https://github.com/Genymobile/scrcpy/issues/940>
+            Ln.d("Applying workarounds to avoid NullPointerException");
+            Workarounds.fillAppInfo();
+            internalStreamScreen(device, fd);
+        }
+    }
+
+    private void internalStreamScreen(Device device, FileDescriptor fd) throws IOException {
+        MediaFormat format = createFormat(bitRate, maxFps);
         device.setRotationListener(this);
         boolean alive;
         try {
@@ -139,14 +151,14 @@ public class ScreenEncoder implements Device.RotationListener {
         return MediaCodec.createEncoderByType(MediaFormat.MIMETYPE_VIDEO_AVC);
     }
 
-    private static MediaFormat createFormat(int bitRate, int maxFps, int iFrameInterval) {
+    private static MediaFormat createFormat(int bitRate, int maxFps) {
         MediaFormat format = new MediaFormat();
         format.setString(MediaFormat.KEY_MIME, MediaFormat.MIMETYPE_VIDEO_AVC);
         format.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
         // must be present to configure the encoder, but does not impact the actual frame rate, which is variable
         format.setInteger(MediaFormat.KEY_FRAME_RATE, 60);
         format.setInteger(MediaFormat.KEY_COLOR_FORMAT, MediaCodecInfo.CodecCapabilities.COLOR_FormatSurface);
-        format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, iFrameInterval);
+        format.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, DEFAULT_I_FRAME_INTERVAL);
         // 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) {

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

@@ -1,15 +1,16 @@
 package com.genymobile.scrcpy;
 
+import com.genymobile.scrcpy.wrappers.ContentProvider;
+
 import android.graphics.Rect;
 import android.media.MediaCodec;
+import android.os.BatteryManager;
 import android.os.Build;
 
-import java.io.File;
 import java.io.IOException;
 
 public final class Server {
 
-    private static final String SERVER_PATH = "/data/local/tmp/scrcpy-server.jar";
 
     private Server() {
         // not instantiable
@@ -18,6 +19,35 @@ public final class Server {
     private static void scrcpy(Options options) throws IOException {
         Ln.i("Device: " + Build.MANUFACTURER + " " + Build.MODEL + " (Android " + Build.VERSION.RELEASE + ")");
         final Device device = new Device(options);
+
+        boolean mustDisableShowTouchesOnCleanUp = false;
+        int restoreStayOn = -1;
+        if (options.getShowTouches() || options.getStayAwake()) {
+            try (ContentProvider settings = device.createSettingsProvider()) {
+                if (options.getShowTouches()) {
+                    String oldValue = settings.getAndPutValue(ContentProvider.TABLE_SYSTEM, "show_touches", "1");
+                    // If "show touches" was disabled, it must be disabled back on clean up
+                    mustDisableShowTouchesOnCleanUp = !"1".equals(oldValue);
+                }
+
+                if (options.getStayAwake()) {
+                    int stayOn = BatteryManager.BATTERY_PLUGGED_AC | BatteryManager.BATTERY_PLUGGED_USB | BatteryManager.BATTERY_PLUGGED_WIRELESS;
+                    String oldValue = settings.getAndPutValue(ContentProvider.TABLE_GLOBAL, "stay_on_while_plugged_in", String.valueOf(stayOn));
+                    try {
+                        restoreStayOn = Integer.parseInt(oldValue);
+                        if (restoreStayOn == stayOn) {
+                            // No need to restore
+                            restoreStayOn = -1;
+                        }
+                    } catch (NumberFormatException e) {
+                        restoreStayOn = 0;
+                    }
+                }
+            }
+        }
+
+        CleanUp.configure(mustDisableShowTouchesOnCleanUp, restoreStayOn);
+
         boolean tunnelForward = options.isTunnelForward();
         try (DesktopConnection connection = DesktopConnection.open(device, tunnelForward)) {
             ScreenEncoder screenEncoder = new ScreenEncoder(options.getSendFrameMeta(), options.getBitRate(), options.getMaxFps());
@@ -79,45 +109,73 @@ public final class Server {
                     "The server version (" + BuildConfig.VERSION_NAME + ") does not match the client " + "(" + clientVersion + ")");
         }
 
-        if (args.length != 10) {
-            throw new IllegalArgumentException("Expecting 10 parameters");
-        }
-
         Options options = new Options();
 
-        int maxSize = Integer.parseInt(args[1]) & ~7; // multiple of 8
-        options.setMaxSize(maxSize);
+        for (int i = 1; i < args.length; ++i) {
+            String arg = args[i];
+            int equalIndex = arg.indexOf('=');
+            if (equalIndex == -1) {
+                throw new IllegalArgumentException("Invalid key=value pair: \"" + arg + "\"");
+            }
+            String key = arg.substring(0, equalIndex);
+            String value = arg.substring(equalIndex + 1);
 
-        int bitRate = Integer.parseInt(args[2]);
-        options.setBitRate(bitRate);
-
-        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[5]);
-        options.setTunnelForward(tunnelForward);
-
-        Rect crop = parseCrop(args[6]);
-        options.setCrop(crop);
-
-        boolean sendFrameMeta = Boolean.parseBoolean(args[7]);
-        options.setSendFrameMeta(sendFrameMeta);
-
-        boolean control = Boolean.parseBoolean(args[8]);
-        options.setControl(control);
-
-        int displayId = Integer.parseInt(args[9]);
-        options.setDisplayId(displayId);
+            switch (key) {
+                case "max_size":
+                    int maxSize = Integer.parseInt(value) & ~7; // multiple of 8
+                    options.setMaxSize(maxSize);
+                    break;
+                case "bit_rate":
+                    int bitRate = Integer.parseInt(value);
+                    options.setBitRate(bitRate);
+                    break;
+                case "max_fps":
+                    int maxFps = Integer.parseInt(value);
+                    options.setMaxFps(maxFps);
+                    break;
+                case "lock_video_orientation":
+                    int lockedVideoOrientation = Integer.parseInt(value);
+                    options.setLockedVideoOrientation(lockedVideoOrientation);
+                    break;
+                case "tunnel_forward":
+                    // use "adb forward" instead of "adb tunnel"? (so the server must listen)
+                    boolean tunnelForward = Boolean.parseBoolean(value);
+                    options.setTunnelForward(tunnelForward);
+                    break;
+                case "crop":
+                    Rect crop = parseCrop(value);
+                    options.setCrop(crop);
+                    break;
+                case "send_frame_meta":
+                    boolean sendFrameMeta = Boolean.parseBoolean(value);
+                    options.setSendFrameMeta(sendFrameMeta);
+                    break;
+                case "control":
+                    boolean control = Boolean.parseBoolean(value);
+                    options.setControl(control);
+                    break;
+                case "display_id":
+                    int displayId = Integer.parseInt(value);
+                    options.setDisplayId(displayId);
+                    break;
+                case "show_touches":
+                    boolean showTouches = Boolean.parseBoolean(value);
+                    options.setShowTouches(showTouches);
+                    break;
+                case "stay_awake":
+                    boolean stayAwake = Boolean.parseBoolean(value);
+                    options.setStayAwake(stayAwake);
+                    break;
+                default:
+                    throw new IllegalArgumentException("Unknown parameter: " + key);
+            }
+        }
 
         return options;
     }
 
     private static Rect parseCrop(String crop) {
-        if ("-".equals(crop)) {
+        if (crop.isEmpty()) {
             return null;
         }
         // input format: "width:height:x:y"
@@ -132,14 +190,6 @@ public final class Server {
         return new Rect(x, y, x + width, y + height);
     }
 
-    private static void unlinkSelf() {
-        try {
-            new File(SERVER_PATH).delete();
-        } catch (Exception e) {
-            Ln.e("Could not unlink server", e);
-        }
-    }
-
     private static void suggestFix(Throwable e) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             if (e instanceof MediaCodec.CodecException) {
@@ -172,7 +222,6 @@ public final class Server {
             }
         });
 
-        unlinkSelf();
         Options options = createOptions(args);
         scrcpy(options);
     }

server/src/main/java/com/genymobile/scrcpy/wrappers/ActivityManager.java

@@ -0,0 +1,87 @@
+package com.genymobile.scrcpy.wrappers;
+
+import com.genymobile.scrcpy.Ln;
+
+import android.os.Binder;
+import android.os.IBinder;
+import android.os.IInterface;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class ActivityManager {
+
+    private final IInterface manager;
+    private Method getContentProviderExternalMethod;
+    private boolean getContentProviderExternalMethodLegacy;
+    private Method removeContentProviderExternalMethod;
+
+    public ActivityManager(IInterface manager) {
+        this.manager = manager;
+    }
+
+    private Method getGetContentProviderExternalMethod() throws NoSuchMethodException {
+        if (getContentProviderExternalMethod == null) {
+            try {
+                getContentProviderExternalMethod = manager.getClass()
+                        .getMethod("getContentProviderExternal", String.class, int.class, IBinder.class, String.class);
+            } catch (NoSuchMethodException e) {
+                // old version
+                getContentProviderExternalMethod = manager.getClass().getMethod("getContentProviderExternal", String.class, int.class, IBinder.class);
+                getContentProviderExternalMethodLegacy = true;
+            }
+        }
+        return getContentProviderExternalMethod;
+    }
+
+    private Method getRemoveContentProviderExternalMethod() throws NoSuchMethodException {
+        if (removeContentProviderExternalMethod == null) {
+            removeContentProviderExternalMethod = manager.getClass().getMethod("removeContentProviderExternal", String.class, IBinder.class);
+        }
+        return removeContentProviderExternalMethod;
+    }
+
+    private ContentProvider getContentProviderExternal(String name, IBinder token) {
+        try {
+            Method method = getGetContentProviderExternalMethod();
+            Object[] args;
+            if (!getContentProviderExternalMethodLegacy) {
+                // new version
+                args = new Object[]{name, ServiceManager.USER_ID, token, null};
+            } else {
+                // old version
+                args = new Object[]{name, ServiceManager.USER_ID, token};
+            }
+            // ContentProviderHolder providerHolder = getContentProviderExternal(...);
+            Object providerHolder = method.invoke(manager, args);
+            if (providerHolder == null) {
+                return null;
+            }
+            // IContentProvider provider = providerHolder.provider;
+            Field providerField = providerHolder.getClass().getDeclaredField("provider");
+            providerField.setAccessible(true);
+            Object provider = providerField.get(providerHolder);
+            if (provider == null) {
+                return null;
+            }
+            return new ContentProvider(this, provider, name, token);
+        } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException | NoSuchFieldException e) {
+            Ln.e("Could not invoke method", e);
+            return null;
+        }
+    }
+
+    void removeContentProviderExternal(String name, IBinder token) {
+        try {
+            Method method = getRemoveContentProviderExternalMethod();
+            method.invoke(manager, name, token);
+        } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
+            Ln.e("Could not invoke method", e);
+        }
+    }
+
+    public ContentProvider createSettingsProvider() {
+        return getContentProviderExternal("settings", new Binder());
+    }
+}

server/src/main/java/com/genymobile/scrcpy/wrappers/ClipboardManager.java

@@ -10,10 +10,6 @@ import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
 public class ClipboardManager {
-
-    private static final String PACKAGE_NAME = "com.android.shell";
-    private static final int USER_ID = 0;
-
     private final IInterface manager;
     private Method getPrimaryClipMethod;
     private Method setPrimaryClipMethod;
@@ -46,17 +42,17 @@ public class ClipboardManager {
 
     private static ClipData getPrimaryClip(Method method, IInterface manager) throws InvocationTargetException, IllegalAccessException {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
-            return (ClipData) method.invoke(manager, PACKAGE_NAME);
+            return (ClipData) method.invoke(manager, ServiceManager.PACKAGE_NAME);
         }
-        return (ClipData) method.invoke(manager, PACKAGE_NAME, USER_ID);
+        return (ClipData) method.invoke(manager, ServiceManager.PACKAGE_NAME, ServiceManager.USER_ID);
     }
 
     private static void setPrimaryClip(Method method, IInterface manager, ClipData clipData)
             throws InvocationTargetException, IllegalAccessException {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
-            method.invoke(manager, clipData, PACKAGE_NAME);
+            method.invoke(manager, clipData, ServiceManager.PACKAGE_NAME);
         } else {
-            method.invoke(manager, clipData, PACKAGE_NAME, USER_ID);
+            method.invoke(manager, clipData, ServiceManager.PACKAGE_NAME, ServiceManager.USER_ID);
         }
     }
 

server/src/main/java/com/genymobile/scrcpy/wrappers/ContentProvider.java

@@ -0,0 +1,132 @@
+package com.genymobile.scrcpy.wrappers;
+
+import com.genymobile.scrcpy.Ln;
+
+import android.os.Bundle;
+import android.os.IBinder;
+
+import java.io.Closeable;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class ContentProvider implements Closeable {
+
+    public static final String TABLE_SYSTEM = "system";
+    public static final String TABLE_SECURE = "secure";
+    public static final String TABLE_GLOBAL = "global";
+
+    // See android/providerHolder/Settings.java
+    private static final String CALL_METHOD_GET_SYSTEM = "GET_system";
+    private static final String CALL_METHOD_GET_SECURE = "GET_secure";
+    private static final String CALL_METHOD_GET_GLOBAL = "GET_global";
+
+    private static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
+    private static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
+    private static final String CALL_METHOD_PUT_GLOBAL = "PUT_global";
+
+    private static final String CALL_METHOD_USER_KEY = "_user";
+
+    private static final String NAME_VALUE_TABLE_VALUE = "value";
+
+    private final ActivityManager manager;
+    // android.content.IContentProvider
+    private final Object provider;
+    private final String name;
+    private final IBinder token;
+
+    private Method callMethod;
+    private boolean callMethodLegacy;
+
+    ContentProvider(ActivityManager manager, Object provider, String name, IBinder token) {
+        this.manager = manager;
+        this.provider = provider;
+        this.name = name;
+        this.token = token;
+    }
+
+    private Method getCallMethod() throws NoSuchMethodException {
+        if (callMethod == null) {
+            try {
+                callMethod = provider.getClass().getMethod("call", String.class, String.class, String.class, String.class, Bundle.class);
+            } catch (NoSuchMethodException e) {
+                // old version
+                callMethod = provider.getClass().getMethod("call", String.class, String.class, String.class, Bundle.class);
+                callMethodLegacy = true;
+            }
+        }
+        return callMethod;
+    }
+
+    private Bundle call(String callMethod, String arg, Bundle extras) {
+        try {
+            Method method = getCallMethod();
+            Object[] args;
+            if (!callMethodLegacy) {
+                args = new Object[]{ServiceManager.PACKAGE_NAME, "settings", callMethod, arg, extras};
+            } else {
+                args = new Object[]{ServiceManager.PACKAGE_NAME, callMethod, arg, extras};
+            }
+            return (Bundle) method.invoke(provider, args);
+        } catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException e) {
+            Ln.e("Could not invoke method", e);
+            return null;
+        }
+    }
+
+    public void close() {
+        manager.removeContentProviderExternal(name, token);
+    }
+
+    private static String getGetMethod(String table) {
+        switch (table) {
+            case TABLE_SECURE:
+                return CALL_METHOD_GET_SECURE;
+            case TABLE_SYSTEM:
+                return CALL_METHOD_GET_SYSTEM;
+            case TABLE_GLOBAL:
+                return CALL_METHOD_GET_GLOBAL;
+            default:
+                throw new IllegalArgumentException("Invalid table: " + table);
+        }
+    }
+
+    private static String getPutMethod(String table) {
+        switch (table) {
+            case TABLE_SECURE:
+                return CALL_METHOD_PUT_SECURE;
+            case TABLE_SYSTEM:
+                return CALL_METHOD_PUT_SYSTEM;
+            case TABLE_GLOBAL:
+                return CALL_METHOD_PUT_GLOBAL;
+            default:
+                throw new IllegalArgumentException("Invalid table: " + table);
+        }
+    }
+
+    public String getValue(String table, String key) {
+        String method = getGetMethod(table);
+        Bundle arg = new Bundle();
+        arg.putInt(CALL_METHOD_USER_KEY, ServiceManager.USER_ID);
+        Bundle bundle = call(method, key, arg);
+        if (bundle == null) {
+            return null;
+        }
+        return bundle.getString("value");
+    }
+
+    public void putValue(String table, String key, String value) {
+        String method = getPutMethod(table);
+        Bundle arg = new Bundle();
+        arg.putInt(CALL_METHOD_USER_KEY, ServiceManager.USER_ID);
+        arg.putString(NAME_VALUE_TABLE_VALUE, value);
+        call(method, key, arg);
+    }
+
+    public String getAndPutValue(String table, String key, String value) {
+        String oldValue = getValue(table, key);
+        if (!value.equals(oldValue)) {
+            putValue(table, key, value);
+        }
+        return oldValue;
+    }
+}

server/src/main/java/com/genymobile/scrcpy/wrappers/ServiceManager.java

@@ -8,6 +8,10 @@ import java.lang.reflect.Method;
 
 @SuppressLint("PrivateApi,DiscouragedPrivateApi")
 public final class ServiceManager {
+
+    public static final String PACKAGE_NAME = "com.android.shell";
+    public static final int USER_ID = 0;
+
     private final Method getServiceMethod;
 
     private WindowManager windowManager;
@@ -16,6 +20,7 @@ public final class ServiceManager {
     private PowerManager powerManager;
     private StatusBarManager statusBarManager;
     private ClipboardManager clipboardManager;
+    private ActivityManager activityManager;
 
     public ServiceManager() {
         try {
@@ -76,4 +81,21 @@ public final class ServiceManager {
         }
         return clipboardManager;
     }
+
+    public ActivityManager getActivityManager() {
+        if (activityManager == null) {
+            try {
+                // On old Android versions, the ActivityManager is not exposed via AIDL,
+                // so use ActivityManagerNative.getDefault()
+                Class<?> cls = Class.forName("android.app.ActivityManagerNative");
+                Method getDefaultMethod = cls.getDeclaredMethod("getDefault");
+                IInterface am = (IInterface) getDefaultMethod.invoke(null);
+                activityManager = new ActivityManager(am);
+            } catch (Exception e) {
+                throw new AssertionError(e);
+            }
+        }
+
+        return activityManager;
+    }
 }