AV_CODEC_ID_METASOUND 2471 libavcodec/codec_desc.c .id = AV_CODEC_ID_METASOUND, AV_CODEC_ID_METASOUND 381 libavcodec/metasound.c .id = AV_CODEC_ID_METASOUND, AV_CODEC_ID_METASOUND 404 libavformat/riff.c { AV_CODEC_ID_METASOUND, 0x0075 },