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| author | Michael Niedermayer <michaelni@gmx.at> | 2013-07-15 17:13:45 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2013-07-16 11:47:52 +0200 |
| commit | 06190d75d09a2c2ac7d080c0633eef3fd2d51dca (patch) | |
| tree | c360b3d185489a971b349446d79f1b1f6f47d472 | |
| parent | c9ea1f7fc5e92bacf0418ec3be78237827cb9fd1 (diff) | |
| download | ffmpeg-06190d75d09a2c2ac7d080c0633eef3fd2d51dca.tar.gz | |
avformat/matroskadec: Detect conflicting sample rate/default_duration
Fixes Ticket2508
Thanks-to: Moritz Bunkus
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6158a3bcdf52fafc1d9ae9eb358a56c614b23aa3)
| -rw-r--r-- | libavformat/matroskadec.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c index f8cd81f2ba..af407d7c56 100644 --- a/libavformat/matroskadec.c +++ b/libavformat/matroskadec.c @@ -2205,6 +2205,7 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data, uint32_t *lace_size = NULL; int n, flags, laces = 0; uint64_t num; + int trust_default_duration = 1; if ((n = matroska_ebmlnum_uint(matroska, data, size, &num)) < 0) { av_log(matroska->ctx, AV_LOG_ERROR, "EBML block data error\n"); @@ -2259,7 +2260,15 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint8_t *data, if (res) goto end; - if (!block_duration) + if (track->audio.samplerate == 8000) { + // If this is needed for more codecs, then add them here + if (st->codec->codec_id == AV_CODEC_ID_AC3) { + if(track->audio.samplerate != st->codec->sample_rate || !st->codec->frame_size) + trust_default_duration = 0; + } + } + + if (!block_duration && trust_default_duration) block_duration = track->default_duration * laces / matroska->time_scale; if (cluster_time != (uint64_t)-1 && (block_time >= 0 || cluster_time >= -block_time)) |