LibMedia: Support the MP3 and AAC codecs in our demuxer

Author: Zaggy1024

Libraries/LibMedia/CodecID.h

@@ -22,6 +22,8 @@ enum class CodecID : u32 {
     H263,
     H264,
     H265,
+    MP3,
+    AAC,
     // AOMedia
     AV1,
     // Xiph
@@ -64,6 +66,12 @@ struct Formatter<Media::CodecID> : Formatter<StringView> {
         case Media::CodecID::H265:
             codec = "H.265"sv;
             break;
+        case Media::CodecID::MP3:
+            codec = "MP3"sv;
+            break;
+        case Media::CodecID::AAC:
+            codec = "AAC"sv;
+            break;
         case Media::CodecID::MPEG1:
             codec = "MPEG1"sv;
             break;

Libraries/LibMedia/Containers/Matroska/MatroskaDemuxer.cpp

@@ -130,6 +130,12 @@ CodecID MatroskaDemuxer::get_codec_id_for_string(FlyString const& codec_id)
         return CodecID::H264;
     if (codec_id == "V_MPEGH/ISO/HEVC")
         return CodecID::H265;
+    if (codec_id == "A_MPEG/L3")
+        return CodecID::MP3;
+    if (codec_id == "A_AAC" || codec_id == "A_AAC/MPEG4/LC"
+        || codec_id == "A_AAC/MPEG4/LC/SBR" || codec_id == "A_AAC/MPEG4/LTP"
+        || codec_id == "A_AAC/MPEG4/MAIN" || codec_id == "A_AAC/MPEG4/SSR")
+        return CodecID::AAC;
     if (codec_id == "V_AV1")
         return CodecID::AV1;
     if (codec_id == "V_THEORA")

Libraries/LibMedia/FFmpeg/FFmpegHelpers.h

@@ -33,6 +33,10 @@ static inline AVCodecID ffmpeg_codec_id_from_media_codec_id(CodecID codec)
         return AV_CODEC_ID_H264;
     case CodecID::H265:
         return AV_CODEC_ID_HEVC;
+    case CodecID::MP3:
+        return AV_CODEC_ID_MP3;
+    case CodecID::AAC:
+        return AV_CODEC_ID_AAC;
     case CodecID::AV1:
         return AV_CODEC_ID_AV1;
     case CodecID::Theora:
@@ -65,6 +69,10 @@ static inline CodecID media_codec_id_from_ffmpeg_codec_id(AVCodecID codec)
         return CodecID::H264;
     case AV_CODEC_ID_HEVC:
         return CodecID::H265;
+    case AV_CODEC_ID_MP3:
+        return CodecID::MP3;
+    case AV_CODEC_ID_AAC:
+        return CodecID::AAC;
     case AV_CODEC_ID_AV1:
         return CodecID::AV1;
     case AV_CODEC_ID_THEORA: