ff_mpa_decode_header  342 libavcodec/audiotoolboxdec.c         if (ff_mpa_decode_header(AV_RB32(pkt->data), &avctx->sample_rate,
ff_mpa_decode_header   73 libavcodec/mpegaudio_parser.c                 ret = ff_mpa_decode_header(state, &sr, &channels, &frame_size, &bit_rate, &codec_id);
ff_mpa_decode_header   57 libavcodec/mpegaudiodecheader.h int ff_mpa_decode_header(uint32_t head, int *sample_rate,