[FFmpeg-cvslog] cdg: Forward error from avio_size() in read_header() function

[Nidhi Makhijani]

ffmpeg | branch: master | Nidhi Makhijani <nidhimj22 at gmail.com> | Thu Jul 10 14:02:51 2014 +0530| [44386aaad870cbd80ae0d08247ebc663476446ff] | committer: Diego Biurrun

cdg: Forward error from avio_size() in read_header() function

Signed-off-by: Diego Biurrun <diego at biurrun.de>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=44386aaad870cbd80ae0d08247ebc663476446ff
---

 libavformat/cdg.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavformat/cdg.c b/libavformat/cdg.c
index 54ad17e..e699691 100644
--- a/libavformat/cdg.c
+++ b/libavformat/cdg.c
@@ -46,9 +46,10 @@ 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 ret;
 
+    vst->duration = (ret * vst->time_base.den) / (CDG_PACKET_SIZE * 300);
     return 0;
 }