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-rw-r--r--libavformat/riff.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 64891db3e8..b977f0dcbf 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -441,7 +441,7 @@ void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssiz
*au_rate = stream->time_base.den;
}else{
*au_scale= stream->block_align ? stream->block_align*8 : 8;
- *au_rate = stream->bit_rate;
+ *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
}
gcd= ff_gcd(*au_scale, *au_rate);
*au_scale /= gcd;