[FFmpeg-cvslog] mxfdec: check return value of avio_seek

[Joakim Plate]

ffmpeg | branch: master | Joakim Plate <elupus at ecce.se> | Wed Sep 14 19:26:48 2011 +0200| [3359246d9a47c3f4418d994853efe17324a0159b] | committer: Janne Grunau

mxfdec: check return value of avio_seek

Avoid modifying state if avio_seek fails.

Signed-off-by: Janne Grunau <janne-libav at jannau.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3359246d9a47c3f4418d994853efe17324a0159b
---

 libavformat/mxfdec.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 38e98a3..44dca69 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -1127,13 +1127,16 @@ static int mxf_read_seek(AVFormatContext *s, int stream_index, int64_t sample_ti
 {
     AVStream *st = s->streams[stream_index];
     int64_t seconds;
+    int ret;
 
     if (!s->bit_rate)
         return AVERROR_INVALIDDATA;
     if (sample_time < 0)
         sample_time = 0;
     seconds = av_rescale(sample_time, st->time_base.num, st->time_base.den);
-    avio_seek(s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET);
+
+    if ((ret = avio_seek(s->pb, (s->bit_rate * seconds) >> 3, SEEK_SET)) < 0)
+        return ret;
     ff_update_cur_dts(s, st, sample_time);
     return 0;
 }