[FFmpeg-cvslog] filmstripdec: Check return value of avio_seek and avoid modifying state if it fails

[Joakim Plate]

ffmpeg | branch: master | Joakim Plate <elupus at ecce.se> | Fri Feb  3 19:13:38 2012 +0000| [64476d7ee86e01f43312dc5dff850d641d2b6c9a] | committer: Justin Ruggles

filmstripdec: Check return value of avio_seek and avoid modifying state if it fails

Signed-off-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=64476d7ee86e01f43312dc5dff850d641d2b6c9a
---

 libavformat/filmstripdec.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavformat/filmstripdec.c b/libavformat/filmstripdec.c
index 8d7b304..1a3b947 100644
--- a/libavformat/filmstripdec.c
+++ b/libavformat/filmstripdec.c
@@ -94,7 +94,8 @@ static int read_packet(AVFormatContext *s,
 static int read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
 {
     AVStream *st = s->streams[stream_index];
-    avio_seek(s->pb, FFMAX(timestamp, 0) * st->codec->width * st->codec->height * 4, SEEK_SET);
+    if (avio_seek(s->pb, FFMAX(timestamp, 0) * st->codec->width * st->codec->height * 4, SEEK_SET) < 0)
+        return -1;
     return 0;
 }