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| author | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-04-23 15:16:50 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-04-23 16:19:26 +0200 |
| commit | 9526c9ccc3dd9e80ce181d4097b52d4838983096 (patch) | |
| tree | a473e3b8c387d27fde0611b5dd0c70f44da50efe /libavformat/aiffdec.c | |
| parent | 8f04220df8050b8de8b92ecd466facd0274f51d2 (diff) | |
| download | ffmpeg-9526c9ccc3dd9e80ce181d4097b52d4838983096.tar.gz | |
Read block_align from extradata when decoding qclp in aiff.
Fixes ticket #1287.
Diffstat (limited to 'libavformat/aiffdec.c')
| -rw-r--r-- | libavformat/aiffdec.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/libavformat/aiffdec.c b/libavformat/aiffdec.c index 4a2629888b..62af3dca7b 100644 --- a/libavformat/aiffdec.c +++ b/libavformat/aiffdec.c @@ -147,9 +147,6 @@ static unsigned int get_aiff_header(AVFormatContext *s, int size, case AV_CODEC_ID_GSM: codec->block_align = 33; break; - case AV_CODEC_ID_QCELP: - codec->block_align = 35; - break; default: aiff->block_duration = 1; break; @@ -286,6 +283,21 @@ static int aiff_read_header(AVFormatContext *s) if (st->codec->codec_id == AV_CODEC_ID_QDM2 && size>=12*4 && !st->codec->block_align) { st->codec->block_align = AV_RB32(st->codec->extradata+11*4); aiff->block_duration = AV_RB32(st->codec->extradata+9*4); + } else if (st->codec->codec_id == AV_CODEC_ID_QCELP) { + char rate = 0; + if (size >= 25) + rate = st->codec->extradata[24]; + switch (rate) { + case 'H': // RATE_HALF + st->codec->block_align = 17; + break; + case 'F': // RATE_FULL + default: + st->codec->block_align = 35; + } + aiff->block_duration = 160; + st->codec->bit_rate = st->codec->sample_rate * (st->codec->block_align << 3) / + aiff->block_duration; } break; case MKTAG('C','H','A','N'): @@ -332,7 +344,7 @@ static int aiff_read_packet(AVFormatContext *s, return AVERROR_EOF; /* Now for that packet */ - if (st->codec->block_align >= 33) // GSM, QCLP, IMA4 + if (st->codec->block_align >= 17) // GSM, QCLP, IMA4 size = st->codec->block_align; else size = (MAX_SIZE / st->codec->block_align) * st->codec->block_align; |