MATROSKA_ID_AUDIOOUTSAMPLINGFREQ  299 libavformat/matroskadec.c     { MATROSKA_ID_AUDIOOUTSAMPLINGFREQ,EBML_FLOAT,0,offsetof(MatroskaTrackAudio,out_samplerate) },
MATROSKA_ID_AUDIOOUTSAMPLINGFREQ  597 libavformat/matroskaenc.c                     put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);