From bf73801bec57fafbf160ee10d072d64b8bb510ba Mon Sep 17 00:00:00 2001
From: Aurelien Jacobs <aurel@gnuage.org>
Date: Mon, 15 Dec 2008 00:00:16 +0000
Subject: vp56: don't reset dimensions to 0 in codec init

Originally committed as revision 16140 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/vp6.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'libavcodec/vp6.c')

diff --git a/libavcodec/vp6.c b/libavcodec/vp6.c
index d8fc0efb3a..6ffde072f7 100644
--- a/libavcodec/vp6.c
+++ b/libavcodec/vp6.c
@@ -75,7 +75,8 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size,
         /* buf[4] is number of displayed macroblock rows */
         /* buf[5] is number of displayed macroblock cols */
 
-        if (16*cols != s->avctx->coded_width ||
+        if (!s->macroblocks || /* first frame */
+            16*cols != s->avctx->coded_width ||
             16*rows != s->avctx->coded_height) {
             avcodec_set_dimensions(s->avctx, 16*cols, 16*rows);
             if (s->avctx->extradata_size == 1) {
-- 
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