From cb5b96cde0842a4a215a49b45ea74ae38a3f02f7 Mon Sep 17 00:00:00 2001
From: Baptiste Coudurier <baptiste.coudurier@gmail.com>
Date: Tue, 12 Aug 2008 17:26:36 +0000
Subject: [PATCH] Prevent dts generation code to be executed when delay is >
MAX_REORDER_DELAY, this fixes overflow in AVStream->pts_buffer.
Originally committed as revision 14714 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/utils.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 0ed479886bb..723427a6b4c 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -895,7 +895,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
}
}
- if(pkt->pts != AV_NOPTS_VALUE){
+ if(pkt->pts != AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
st->pts_buffer[0]= pkt->pts;
for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
st->pts_buffer[i]= (i-delay-1) * pkt->duration;
@@ -2524,7 +2524,7 @@ static int compute_pkt_fields2(AVStream *st, AVPacket *pkt){
}
//calculate dts from pts
- if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE){
+ if(pkt->pts != AV_NOPTS_VALUE && pkt->dts == AV_NOPTS_VALUE && delay <= MAX_REORDER_DELAY){
st->pts_buffer[0]= pkt->pts;
for(i=1; i<delay+1 && st->pts_buffer[i] == AV_NOPTS_VALUE; i++)
st->pts_buffer[i]= (i-delay-1) * pkt->duration;
--
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