From: Zhao Zhili <quinkblack@foxmail.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Zhao Zhili <zhilizhao@tencent.com>
Subject: [FFmpeg-devel] [PATCH] avformat/mov: decrease probe score for a random tag
Date: Mon, 22 May 2023 22:07:49 +0800
Message-ID: <tencent_B69C08E0E05B1A34F780C8358D3F3D562D09@qq.com> (raw)
From: Zhao Zhili <zhilizhao@tencent.com>
The tag comes from samples/ffmpeg/mov/unrecognized/bartjones.mov
really looks like some random data. Now the random tag matched
another file, which isn't a mov.
---
libavformat/mov.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 9fdeef057e..285a4e99ca 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -8107,6 +8107,8 @@ static int mov_probe(const AVProbeData *p)
score = FFMAX(score, AVPROBE_SCORE_MAX - 5);
break;
case MKTAG(0x82,0x82,0x7f,0x7d):
+ score = FFMAX(score, AVPROBE_SCORE_EXTENSION - 5);
+ break;
case MKTAG('s','k','i','p'):
case MKTAG('u','u','i','d'):
case MKTAG('p','r','f','l'):
--
2.40.1
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reply other threads:[~2023-05-22 14:08 UTC|newest]
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