Add --audio-encoder option

Similar to --video-encoder, but for audio.

app/scrcpy.1

@@ -31,6 +31,10 @@ Select an audio codec (opus or aac).
 
 Default is opus.
 
+.TP
+.BI "\-\-audio\-encoder " name
+Use a specific MediaCodec audio encoder (depending on the codec provided by \fB\-\-audio\-codec\fR).
+
 .TP
 .BI "\-b, \-\-bit\-rate " value
 Encode the video at the given bit\-rate, expressed in bits/s. Unit suffixes are supported: '\fBK\fR' (x1000) and '\fBM\fR' (x1000000).

app/src/cli.c

@@ -61,6 +61,7 @@
 #define OPT_NO_AUDIO               1041
 #define OPT_AUDIO_BIT_RATE         1042
 #define OPT_AUDIO_CODEC            1043
+#define OPT_AUDIO_ENCODER_NAME     1044
 
 struct sc_option {
     char shortopt;
@@ -116,6 +117,13 @@ static const struct sc_option options[] = {
         .text = "Select an audio codec (opus or aac).\n"
                 "Default is opus.",
     },
+    {
+        .longopt_id = OPT_AUDIO_ENCODER_NAME,
+        .longopt = "audio-encoder",
+        .argdesc = "name",
+        .text = "Use a specific MediaCodec audio encoder (depending on the "
+                "codec provided by --audio-codec).",
+    },
     {
         .shortopt = 'b',
         .longopt = "bit-rate",
@@ -1635,6 +1643,9 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
             case OPT_ENCODER_NAME:
                 opts->encoder_name = optarg;
                 break;
+            case OPT_AUDIO_ENCODER_NAME:
+                opts->audio_encoder_name = optarg;
+                break;
             case OPT_FORCE_ADB_FORWARD:
                 opts->force_adb_forward = true;
                 break;

app/src/options.h

@@ -97,6 +97,7 @@ struct scrcpy_options {
     const char *render_driver;
     const char *codec_options;
     const char *encoder_name;
+    const char *audio_encoder_name;
 #ifdef HAVE_V4L2
     const char *v4l2_device;
 #endif

app/src/scrcpy.c

@@ -368,6 +368,7 @@ scrcpy(struct scrcpy_options *options) {
         .stay_awake = options->stay_awake,
         .codec_options = options->codec_options,
         .encoder_name = options->encoder_name,
+        .audio_encoder_name = options->audio_encoder_name,
         .force_adb_forward = options->force_adb_forward,
         .power_off_on_close = options->power_off_on_close,
         .clipboard_autosync = options->clipboard_autosync,

app/src/server.c

@@ -73,6 +73,7 @@ sc_server_params_destroy(struct sc_server_params *params) {
     free((char *) params->crop);
     free((char *) params->codec_options);
     free((char *) params->encoder_name);
+    free((char *) params->audio_encoder_name);
     free((char *) params->tcpip_dst);
 }
 
@@ -97,6 +98,7 @@ sc_server_params_copy(struct sc_server_params *dst,
     COPY(crop);
     COPY(codec_options);
     COPY(encoder_name);
+    COPY(audio_encoder_name);
     COPY(tcpip_dst);
 #undef COPY
 
@@ -270,6 +272,9 @@ execute_server(struct sc_server *server,
     if (params->encoder_name) {
         ADD_PARAM("encoder_name=%s", params->encoder_name);
     }
+    if (params->audio_encoder_name) {
+        ADD_PARAM("audio_encoder_name=%s", params->audio_encoder_name);
+    }
     if (params->power_off_on_close) {
         ADD_PARAM("power_off_on_close=true");
     }

app/src/server.h

@@ -30,6 +30,7 @@ struct sc_server_params {
     const char *crop;
     const char *codec_options;
     const char *encoder_name;
+    const char *audio_encoder_name;
     struct sc_port_range port_range;
     uint32_t tunnel_host;
     uint16_t tunnel_port;