From 072756cdd2f949462520041e357f52f15d8c274d Mon Sep 17 00:00:00 2001
From: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Date: Thu, 25 Jun 2015 22:54:17 +0200
Subject: [PATCH] vc1dec: use get_bits_long and limit the read bits to 32
get_bits should not be used with more than 25 bits.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
---
libavcodec/vc1dec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 53254f0949e..6b9713d0154 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -444,7 +444,7 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
count = avctx->extradata_size*8 - get_bits_count(&gb);
if (count > 0) {
av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n",
- count, get_bits(&gb, count));
+ count, get_bits_long(&gb, FFMIN(count, 32)));
} else if (count < 0) {
av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count);
}
--
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