From 4c8ce750abaa783109630d41ca7dde5de34f6197 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Thu, 18 Apr 2013 17:54:54 +0200
Subject: [PATCH] svq3: use memmove to avoid overlap in memcpy.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavcodec/svq3.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 53c4d3202c9..f584f3a2c6f 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -792,8 +792,8 @@ static int svq3_decode_slice_header(AVCodecContext *avctx)
header ^ s->watermark_key);
}
if (length > 0) {
- memcpy((uint8_t *) &h->gb.buffer[get_bits_count(&h->gb) >> 3],
- &h->gb.buffer[h->gb.size_in_bits >> 3], length - 1);
+ memmove((uint8_t *) &h->gb.buffer[get_bits_count(&h->gb) >> 3],
+ &h->gb.buffer[h->gb.size_in_bits >> 3], length - 1);
}
skip_bits_long(&h->gb, 0);
}
--
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