fix negative fseek

Originally committed as revision 10965 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago · cc04af3481
parent 5c470b910e
commit cc04af3481
1 changed files with 1 additions and 1 deletions
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@ -124,7 +124,7 @@ static int mpegps_read_header(AVFormatContext *s,
    if ((p=memchr(buffer, 'S', sizeof(buffer))))
        if (!memcmp(p, "Sofdec", 6))
            m->sofdec = 1;
-    url_fseek(&s->pb, -sizeof(buffer), SEEK_CUR);
+    url_fseek(&s->pb, -(offset_t)sizeof(buffer), SEEK_CUR);

    /* no need to do more */
    return 0;