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Add workaround for what looks like a ffmpeg bug 

Originally committed to SVN as r2194.
This commit is contained in:
pstatic 2008-05-21 20:03:39 +00:00
parent 74913197fb
commit d65b697e12
1 changed files with 9 additions and 2 deletions
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11
aegisub/audio_provider_lavc.cpp
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@ -122,8 +122,15 @@ LAVCAudioProvider::LAVCAudioProvider(Aegisub::String _filename)
resample_ratio = (float)sample_rate / (float)codecContext->sample_rate;
}
double length = (double)stream->duration * av_q2d(stream->time_base);
/* libavcodec seems to give back invalid stream length values for Matroska files.
* As a workaround, we can use the overall file length.
*/
double length;
if(stream->duration == AV_NOPTS_VALUE)
length = (double)lavcfile->fctx->duration / AV_TIME_BASE;
else
length = (double)stream->duration * av_q2d(stream->time_base);
num_samples = (int64_t)(length * sample_rate);
buffer = (int16_t *)malloc(AVCODEC_MAX_AUDIO_FRAME_SIZE);