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

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
This commit is contained in:
Joakim Plate 2012-02-03 19:13:36 +00:00 committed by Justin Ruggles
parent 3371e89640
commit 8332321c57
1 changed files with 4 additions and 3 deletions
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7
libavformat/dv.c
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@ -491,10 +491,11 @@ static int dv_read_seek(AVFormatContext *s, int stream_index,
DVDemuxContext *c = r->dv_demux;
int64_t offset = dv_frame_offset(s, c, timestamp, flags);
dv_offset_reset(c, offset / c->sys->frame_size);
if (avio_seek(s->pb, offset, SEEK_SET) < 0)
return -1;
offset = avio_seek(s->pb, offset, SEEK_SET);
return (offset < 0) ? offset : 0;
dv_offset_reset(c, offset / c->sys->frame_size);
return 0;
}
static int dv_read_close(AVFormatContext *s)