MATROSKA_ID_AUDIOOUTSAMPLINGFREQ  370 libavformat/matroskadec.c     { MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, EBML_FLOAT, 0, offsetof(MatroskaTrackAudio, out_samplerate) },
MATROSKA_ID_AUDIOOUTSAMPLINGFREQ  998 libavformat/matroskaenc.c             put_ebml_float(pb, MATROSKA_ID_AUDIOOUTSAMPLINGFREQ, output_sample_rate);