From 3b58ab4c5fdc31b7434b0c7608b48923edd63e3b Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 4 Jun 2013 20:34:38 +0200
Subject: [PATCH] pngdec: dont treat mpng like png with key and non keyframes
Fixes Ticket2618
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/pngdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 8b33826176a..c1fc60666e6 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -821,7 +821,7 @@ static int decode_frame(AVCodecContext *avctx,
/* handle p-frames only if a predecessor frame is available */
if (s->prev->data[0]) {
- if ( !(avpkt->flags & AV_PKT_FLAG_KEY)
+ if ( !(avpkt->flags & AV_PKT_FLAG_KEY) && avctx->codec_tag != AV_RL32("MPNG")
&& s->prev->width == p->width
&& s->prev->height== p->height
&& s->prev->format== p->format
--
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