wtvdec: fix integer overflow

Fixes CID968583 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago · 3317414fc1
parent 3fba3e79a3
commit 3317414fc1
1 changed files with 1 additions and 1 deletions
--- a/libavformat/wtvdec.c
+++ b/libavformat/wtvdec.c
@ -200,7 +200,7 @@ static AVIOContext * wtvfile_open_sector(int first_sector, uint64_t length, int
        return NULL;
    }

-    if (wf->sectors[wf->nb_sectors - 1] << WTV_SECTOR_BITS > avio_tell(s->pb))
+    if ((int64_t)wf->sectors[wf->nb_sectors - 1] << WTV_SECTOR_BITS > avio_tell(s->pb))
        av_log(s, AV_LOG_WARNING, "truncated file\n");

    /* check length */