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wavdec: fix duration calculation for files with invalid data size 

Some wav files report a data size that is bigger than the actual file size.
Fall back to estimation from bitrate in such cases.

Fixes ticket #2065.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2012-12-27 19:30:40 -03:00 committed by Paul B Mahol
parent 981baf742c
commit d59d39e164
1 changed files with 1 additions and 1 deletions
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2
libavformat/wavdec.c
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@ -365,7 +365,7 @@ break_loop:
avio_seek(pb, data_ofs, SEEK_SET);
if (!sample_count && st->codec->channels && av_get_bits_per_sample(st->codec->codec_id))
if (!sample_count && st->codec->channels && av_get_bits_per_sample(st->codec->codec_id) && wav->data_end <= avio_size(pb))
sample_count = (data_size<<3) / (st->codec->channels * (uint64_t)av_get_bits_per_sample(st->codec->codec_id));
if (sample_count)
st->duration = sample_count;