ff_id3v2_write_metadata   63 libavformat/aiffenc.c     ff_id3v2_write_metadata(s, &id3v2);
ff_id3v2_write_metadata  129 libavformat/id3v2.h int ff_id3v2_write_metadata(AVFormatContext *s, ID3v2EncContext *id3);
ff_id3v2_write_metadata  356 libavformat/id3v2enc.c     if ((ret = ff_id3v2_write_metadata(s, &id3)) < 0)
ff_id3v2_write_metadata  602 libavformat/mp3enc.c         ret = ff_id3v2_write_metadata(s, &mp3->id3);