Add --audio-codec-options

Similar to --video-codec-options, but for audio.

PR #3757 <https://github.com/Genymobile/scrcpy/pull/3757>

app/src/cli.c

@@ -66,6 +66,7 @@ enum {
     OPT_NO_AUDIO,
     OPT_AUDIO_BIT_RATE,
     OPT_AUDIO_CODEC,
+    OPT_AUDIO_CODEC_OPTIONS,
 };
 
 struct sc_option {
@@ -122,6 +123,18 @@ static const struct sc_option options[] = {
         .text = "Select an audio codec (opus or aac).\n"
                 "Default is opus.",
     },
+    {
+        .longopt_id = OPT_AUDIO_CODEC_OPTIONS,
+        .longopt = "audio-codec-options",
+        .argdesc = "key[:type]=value[,...]",
+        .text = "Set a list of comma-separated key:type=value options for the "
+                "device audio encoder.\n"
+                "The possible values for 'type' are 'int' (default), 'long', "
+                "'float' and 'string'.\n"
+                "The list of possible codec options is available in the "
+                "Android documentation: "
+                "<https://d.android.com/reference/android/media/MediaFormat>",
+    },
     {
         .shortopt = 'b',
         .longopt = "video-bit-rate",
@@ -1672,6 +1685,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case OPT_VIDEO_CODEC_OPTIONS:
                 opts->video_codec_options = optarg;
                 break;
+            case OPT_AUDIO_CODEC_OPTIONS:
+                opts->audio_codec_options = optarg;
+                break;
             case OPT_ENCODER:
                 LOGW("--encoder is deprecated, use --video-encoder instead.");
                 // fall through

app/src/options.c

@@ -8,6 +8,7 @@ const struct scrcpy_options scrcpy_options_default = {
     .push_target = NULL,
     .render_driver = NULL,
     .video_codec_options = NULL,
+    .audio_codec_options = NULL,
     .video_encoder = NULL,
 #ifdef HAVE_V4L2
     .v4l2_device = NULL,

app/src/options.h

@@ -96,6 +96,7 @@ struct scrcpy_options {
     const char *push_target;
     const char *render_driver;
     const char *video_codec_options;
+    const char *audio_codec_options;
     const char *video_encoder;
 #ifdef HAVE_V4L2
     const char *v4l2_device;

app/src/scrcpy.c

@@ -331,6 +331,7 @@ scrcpy(struct scrcpy_options *options) {
         .show_touches = options->show_touches,
         .stay_awake = options->stay_awake,
         .video_codec_options = options->video_codec_options,
+        .audio_codec_options = options->audio_codec_options,
         .video_encoder = options->video_encoder,
         .force_adb_forward = options->force_adb_forward,
         .power_off_on_close = options->power_off_on_close,

app/src/server.c

@@ -72,6 +72,7 @@ sc_server_params_destroy(struct sc_server_params *params) {
     free((char *) params->req_serial);
     free((char *) params->crop);
     free((char *) params->video_codec_options);
+    free((char *) params->audio_codec_options);
     free((char *) params->video_encoder);
     free((char *) params->tcpip_dst);
 }
@@ -96,6 +97,7 @@ sc_server_params_copy(struct sc_server_params *dst,
     COPY(req_serial);
     COPY(crop);
     COPY(video_codec_options);
+    COPY(audio_codec_options);
     COPY(video_encoder);
     COPY(tcpip_dst);
 #undef COPY
@@ -268,6 +270,9 @@ execute_server(struct sc_server *server,
     if (params->video_codec_options) {
         ADD_PARAM("video_codec_options=%s", params->video_codec_options);
     }
+    if (params->audio_codec_options) {
+        ADD_PARAM("audio_codec_options=%s", params->audio_codec_options);
+    }
     if (params->video_encoder) {
         ADD_PARAM("video_encoder=%s", params->video_encoder);
     }

app/src/server.h

@@ -29,6 +29,7 @@ struct sc_server_params {
     enum sc_codec audio_codec;
     const char *crop;
     const char *video_codec_options;
+    const char *audio_codec_options;
     const char *video_encoder;
     struct sc_port_range port_range;
     uint32_t tunnel_host;