From 0cd90a86100db1871a83073ebf9c08f218173e3d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20=C3=96man?= Date: Sun, 7 Nov 2010 22:43:24 +0000 Subject: [PATCH] Avoid division by zero if h264 width and/or height is 0. (Happens on corrupt data) --- src/parser_h264.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/parser_h264.c b/src/parser_h264.c index 38330490..7f31f236 100644 --- a/src/parser_h264.c +++ b/src/parser_h264.c @@ -412,10 +412,12 @@ h264_decode_slice_header(th_stream_t *st, bitstream_t *bs, int *pkttype, int w = p->sps[sps_id].aspect_num * st->st_width; int h = p->sps[sps_id].aspect_den * st->st_height; - int d = gcd(w, h); - st->st_aspect_num = w / d; - st->st_aspect_den = h / d; + if(w & h) { + int d = gcd(w, h); + st->st_aspect_num = w / d; + st->st_aspect_den = h / d; + } } else { st->st_aspect_num = 0;