Add option to specify the camera zoom

Add --camera-zoom to specify the camera zoom.

PR #6243 <https://github.com/Genymobile/scrcpy/pull/6243>

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

app/src/cli.c

@@ -115,6 +115,7 @@ enum {
     OPT_NO_VD_DESTROY_CONTENT,
     OPT_DISPLAY_IME_POLICY,
     OPT_CAMERA_TORCH,
+    OPT_CAMERA_ZOOM,
 };
 
 struct sc_option {
@@ -319,6 +320,12 @@ static const struct sc_option options[] = {
         .longopt = "camera-torch",
         .text = "Turn on the camera torch when the camera starts.",
     },
+    {
+        .longopt_id = OPT_CAMERA_ZOOM,
+        .longopt = "camera-zoom",
+        .argdesc = "zoom",
+        .text = "Specify the camera zoom initial value.",
+    },
     {
         .longopt_id = OPT_CAPTURE_ORIENTATION,
         .longopt = "capture-orientation",
@@ -2797,6 +2804,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case OPT_CAMERA_TORCH:
                 opts->camera_torch = true;
                 break;
+            case OPT_CAMERA_ZOOM:
+                opts->camera_zoom = optarg;
+                break;
             case OPT_NO_WINDOW:
                 opts->window = false;
                 break;

app/src/options.c

@@ -16,6 +16,7 @@ const struct scrcpy_options scrcpy_options_default = {
     .camera_id = NULL,
     .camera_size = NULL,
     .camera_ar = NULL,
+    .camera_zoom = NULL,
     .camera_fps = 0,
     .log_level = SC_LOG_LEVEL_INFO,
     .video_codec = SC_CODEC_H264,

app/src/options.h

@@ -241,6 +241,7 @@ struct scrcpy_options {
     const char *camera_id;
     const char *camera_size;
     const char *camera_ar;
+    const char *camera_zoom;
     uint16_t camera_fps;
     enum sc_log_level log_level;
     enum sc_codec video_codec;

app/src/scrcpy.c

@@ -470,6 +470,7 @@ scrcpy(struct scrcpy_options *options) {
         .kill_adb_on_close = options->kill_adb_on_close,
         .camera_high_speed = options->camera_high_speed,
         .camera_torch = options->camera_torch,
+        .camera_zoom = options->camera_zoom,
         .vd_destroy_content = options->vd_destroy_content,
         .vd_system_decorations = options->vd_system_decorations,
         .list = options->list,

app/src/server.c

@@ -360,6 +360,10 @@ execute_server(struct sc_server *server,
     if (params->camera_torch) {
         ADD_PARAM("camera_torch=true");
     }
+    if (params->camera_zoom) {
+        VALIDATE_STRING(params->camera_zoom);
+        ADD_PARAM("camera_zoom=%s", params->camera_zoom);
+    }
     if (params->show_touches) {
         ADD_PARAM("show_touches=true");
     }

app/src/server.h

@@ -35,6 +35,7 @@ struct sc_server_params {
     const char *camera_id;
     const char *camera_size;
     const char *camera_ar;
+    const char *camera_zoom;
     uint16_t camera_fps;
     struct sc_port_range port_range;
     uint32_t tunnel_host;