From d7716961a856e0d6fcd23d82a5cb87c3a8439e4b Mon Sep 17 00:00:00 2001 From: Benoit Fouet Date: Tue, 2 Dec 2014 11:24:21 +0100 Subject: [PATCH] avformat/apngdec: exit probing when skipping is not possible. Signed-off-by: Michael Niedermayer --- libavformat/apngdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/apngdec.c b/libavformat/apngdec.c index 189480e41a..d97b015a79 100644 --- a/libavformat/apngdec.c +++ b/libavformat/apngdec.c @@ -87,7 +87,7 @@ static int apng_probe(AVProbeData *p) /* we don't check IDAT size, as this is the last tag * we check, and it may be larger than the probe buffer */ if (tag != MKTAG('I', 'D', 'A', 'T') && - len > bytestream2_get_bytes_left(&gb)) + len + 4 > bytestream2_get_bytes_left(&gb)) return 0; switch (tag) {