filmstripdec: avoid integer overflow

CC: libav-stable@libav.org Bug-Id: CID 732246
11 years ago · b46b233baf
parent 090c67d586
commit b46b233baf
1 changed files with 1 additions and 1 deletions
--- a/libavformat/filmstripdec.c
+++ b/libavformat/filmstripdec.c
@ -84,7 +84,7 @@ static int read_packet(AVFormatContext *s,
        return AVERROR(EIO);
    pkt->dts = avio_tell(s->pb) / (st->codec->width * (st->codec->height + film->leading) * 4);
    pkt->size = av_get_packet(s->pb, pkt, st->codec->width * st->codec->height * 4);
-    avio_skip(s->pb, st->codec->width * film->leading * 4);
+    avio_skip(s->pb, st->codec->width * (int64_t) film->leading * 4);
    if (pkt->size < 0)
        return pkt->size;
    pkt->flags |= AV_PKT_FLAG_KEY;