[FFmpeg-cvslog] Fixed invalid writes in wavpack decoder on corrupted bitstreams.
Laurent Aimar
git at videolan.org
Thu Sep 8 22:43:31 CEST 2011
ffmpeg | branch: master | Laurent Aimar <fenrir at videolan.org> | Wed Sep 7 22:17:39 2011 +0200| [0aedab03405849962b469277afe047aa2c61a87f] | committer: Martin Storsjö
Fixed invalid writes in wavpack decoder on corrupted bitstreams.
Signed-off-by: Martin Storsjö <martin at martin.st>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0aedab03405849962b469277afe047aa2c61a87f
---
libavcodec/wavpack.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index fccafa8..41a1176 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -1114,7 +1114,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
int16_t *dst = (int16_t*)samples + 1;
int16_t *src = (int16_t*)samples;
int cnt = samplecount;
- while(cnt--){
+ while(cnt-- > 0){
*dst = *src;
src += channel_stride;
dst += channel_stride;
@@ -1123,7 +1123,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
int32_t *dst = (int32_t*)samples + 1;
int32_t *src = (int32_t*)samples;
int cnt = samplecount;
- while(cnt--){
+ while(cnt-- > 0){
*dst = *src;
src += channel_stride;
dst += channel_stride;
@@ -1132,7 +1132,7 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
float *dst = (float*)samples + 1;
float *src = (float*)samples;
int cnt = samplecount;
- while(cnt--){
+ while(cnt-- > 0){
*dst = *src;
src += channel_stride;
dst += channel_stride;
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