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-rw-r--r--libavformat/sierravmd.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/sierravmd.c b/libavformat/sierravmd.c
index 0e268cb02c..16b6a8d4cc 100644
--- a/libavformat/sierravmd.c
+++ b/libavformat/sierravmd.c
@@ -185,7 +185,8 @@ static int vmd_read_header(AVFormatContext *s,
/* each on-disk VMD frame has an audio part and a video part; demuxer
* accounts them separately */
- vmd->frame_count *= 2;
+ if(vmd->sample_rate)
+ vmd->frame_count *= 2;
raw_frame_table = NULL;
vmd->frame_table = NULL;
raw_frame_table_size = vmd->frame_count * BYTES_PER_FRAME_RECORD;