From 5ef5501b71c3046302494d1f1fa45e9af3ea7a7a Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 3 Dec 2007 08:27:04 +0000
Subject: [PATCH] ensure that the probe code runs in O(n)
Originally committed as revision 11147 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavformat/mp3.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/libavformat/mp3.c b/libavformat/mp3.c
index 39cb60d579e..f99f5206b37 100644
--- a/libavformat/mp3.c
+++ b/libavformat/mp3.c
@@ -405,7 +405,7 @@ static int mp3_read_probe(AVProbeData *p)
buf = p->buf;
end = buf + p->buf_size - sizeof(uint32_t);
- for(; buf < end; buf++) {
+ for(; buf < end; buf= buf2+1) {
buf2 = buf;
for(frames = 0; buf2 < end; frames++) {
@@ -418,8 +418,6 @@ static int mp3_read_probe(AVProbeData *p)
max_frames = FFMAX(max_frames, frames);
if(buf == p->buf)
first_frames= frames;
- if(buf2 > end)
- break;
}
if (first_frames>=3) return AVPROBE_SCORE_MAX/2+1;
else if(max_frames>=3) return AVPROBE_SCORE_MAX/4;
--
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