From 9061be9fb389c31e40b732e36b6ae311dbad552c Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Tue, 20 Sep 2005 18:51:12 +0000
Subject: [PATCH] precautionary checks
Originally committed as revision 4602 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/bitstream.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/libavcodec/bitstream.h b/libavcodec/bitstream.h
index 26dee2df886..9616d5f0faa 100644
--- a/libavcodec/bitstream.h
+++ b/libavcodec/bitstream.h
@@ -53,6 +53,9 @@ typedef struct PutBitContext {
static inline void init_put_bits(PutBitContext *s, uint8_t *buffer, int buffer_size)
{
+ if(buffer_size < 0)
+ buffer= buffer_size= 0;
+
s->buf = buffer;
s->buf_end = s->buf + buffer_size;
#ifdef ALT_BITSTREAM_WRITER
@@ -672,7 +675,9 @@ static inline void skip_bits1(GetBitContext *s){
static inline void init_get_bits(GetBitContext *s,
const uint8_t *buffer, int bit_size)
{
- const int buffer_size= (bit_size+7)>>3;
+ int buffer_size= (bit_size+7)>>3;
+ if(buffer_size < 0 || bit_size < 0)
+ buffer= buffer_size= bit_size= 0;
s->buffer= buffer;
s->size_in_bits= bit_size;
--
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