diff options
Diffstat (limited to 'ffmpeg/libavformat/au.c')
| -rw-r--r-- | ffmpeg/libavformat/au.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/ffmpeg/libavformat/au.c b/ffmpeg/libavformat/au.c index a29e802..edf0f32 100644 --- a/ffmpeg/libavformat/au.c +++ b/ffmpeg/libavformat/au.c @@ -2,6 +2,8 @@ * AU muxer and demuxer * Copyright (c) 2001 Fabrice Bellard * + * first version by Francois Revol <revol@free.fr> + * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or @@ -20,8 +22,6 @@ */ /* - * First version by Francois Revol revol@free.fr - * * Reference documents: * http://www.opengroup.org/public/pubs/external/auformat.html * http://www.goice.co.jp/member/mo/formats/au.html @@ -31,6 +31,7 @@ #include "internal.h" #include "avio_internal.h" #include "pcm.h" +#include "libavutil/avassert.h" /* if we don't know the size in advance */ #define AU_UNKNOWN_SIZE ((uint32_t)(~0)) @@ -45,8 +46,12 @@ static const AVCodecTag codec_au_tags[] = { { AV_CODEC_ID_PCM_S32BE, 5 }, { AV_CODEC_ID_PCM_F32BE, 6 }, { AV_CODEC_ID_PCM_F64BE, 7 }, + { AV_CODEC_ID_ADPCM_G726LE, 23 }, { AV_CODEC_ID_ADPCM_G722,24 }, + { AV_CODEC_ID_ADPCM_G726LE, 25 }, + { AV_CODEC_ID_ADPCM_G726LE, 26 }, { AV_CODEC_ID_PCM_ALAW, 27 }, + { AV_CODEC_ID_ADPCM_G726LE, MKBETAG('7','2','6','2') }, { AV_CODEC_ID_NONE, 0 }, }; @@ -101,7 +106,15 @@ static int au_read_header(AVFormatContext *s) } bps = av_get_bits_per_sample(codec); - if (!bps) { + if (codec == AV_CODEC_ID_ADPCM_G726LE) { + if (id == MKBETAG('7','2','6','2')) { + bps = 2; + } else { + const uint8_t bpcss[] = {4, 0, 3, 5}; + av_assert0(id >= 23 && id < 23 + 4); + bps = bpcss[id - 23]; + } + } else if (!bps) { avpriv_request_sample(s, "Unknown bits per sample"); return AVERROR_PATCHWELCOME; } @@ -124,6 +137,7 @@ static int au_read_header(AVFormatContext *s) st->codec->codec_id = codec; st->codec->channels = channels; st->codec->sample_rate = rate; + st->codec->bits_per_coded_sample = bps; st->codec->bit_rate = channels * rate * bps; st->codec->block_align = FFMAX(bps * st->codec->channels / 8, 1); if (data_size != AU_UNKNOWN_SIZE) |