---
libavformat/cdg.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavformat/cdg.c b/libavformat/cdg.c
index 974880a..7bcbd16 100644
--- a/libavformat/cdg.c
+++ b/libavformat/cdg.c
@@ -42,9 +42,10 @@ static int read_header(AVFormatContext *s)
avpriv_set_pts_info(vst, 32, 1, 300);
ret = avio_size(s->pb);
- if (ret > 0)
- vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
+ if (ret < 0)
+ return AVERROR_INVALIDDATA;
+ vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
return 0;
}
--
1.9.1
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