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avformat/wavdec: add extra sample count check for G.729 files

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Can be used to fix Ticket4577

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Ganesh Ajjanagadde 2015-07-30 20:33:28 -04:00 committed by Michael Niedermayer
parent a0092cea46
commit c1bfb99ff2
1 changed files with 7 additions and 0 deletions
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7
libavformat/wavdec.c
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@ -440,6 +440,13 @@ break_loop:
sample_count = 0;
}
/* G.729 hack (for Ticket4577)
* FIXME: Come up with cleaner, more general solution */
if (st->codec->codec_id == AV_CODEC_ID_G729 && sample_count && (data_size << 3) > sample_count) {
av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
sample_count = 0;
}
if (!sample_count || av_get_exact_bits_per_sample(st->codec->codec_id) > 0)
if ( st->codec->channels
&& data_size