Add recording to aac file

It is just an alias for mp4.

PR #3978 <https://github.com/Genymobile/scrcpy/pull/3978>

app/src/cli.c

@@ -1496,6 +1496,9 @@ get_record_format(const char *name) {
     if (!strcmp(name, "opus")) {
         return SC_RECORD_FORMAT_OPUS;
     }
+    if (!strcmp(name, "aac")) {
+        return SC_RECORD_FORMAT_AAC;
+    }
     return 0;
 }
 
@@ -1996,6 +1999,13 @@ parse_args_with_getopt(struct scrcpy_cli_args *args, int argc, char *argv[],
                  "(try with --audio-codec=opus)");
             return false;
         }
+
+        if (opts->record_format == SC_RECORD_FORMAT_AAC
+                && opts->audio_codec != SC_CODEC_AAC) {
+            LOGE("Recording to AAC file requires an AAC audio stream "
+                 "(try with --audio-codec=aac)");
+            return false;
+        }
     }
 
     if (opts->audio_codec == SC_CODEC_RAW) {

app/src/options.h

@@ -24,13 +24,15 @@ enum sc_record_format {
     SC_RECORD_FORMAT_M4A,
     SC_RECORD_FORMAT_MKA,
     SC_RECORD_FORMAT_OPUS,
+    SC_RECORD_FORMAT_AAC,
 };
 
 static inline bool
 sc_record_format_is_audio_only(enum sc_record_format fmt) {
     return fmt == SC_RECORD_FORMAT_M4A
         || fmt == SC_RECORD_FORMAT_MKA
-        || fmt == SC_RECORD_FORMAT_OPUS;
+        || fmt == SC_RECORD_FORMAT_OPUS
+        || fmt == SC_RECORD_FORMAT_AAC;
 }
 
 enum sc_codec {

app/src/recorder.c

@@ -62,6 +62,7 @@ sc_recorder_get_format_name(enum sc_record_format format) {
     switch (format) {
         case SC_RECORD_FORMAT_MP4:
         case SC_RECORD_FORMAT_M4A:
+        case SC_RECORD_FORMAT_AAC:
             return "mp4";
         case SC_RECORD_FORMAT_MKV:
         case SC_RECORD_FORMAT_MKA: