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Code Issues Releases Activity

snow: fix signed overflow in byte to 32-bit replication

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-11-26 20:42:07 +00:00
parent 9d2dd356c2
commit ff6d9cc558
1 changed files with 2 additions and 2 deletions
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4
libavcodec/snow.c
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@ -290,8 +290,8 @@ static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int
void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){ void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){
if(block->type & BLOCK_INTRA){ if(block->type & BLOCK_INTRA){
int x, y; int x, y;
const int color = block->color[plane_index]; const unsigned color = block->color[plane_index];
const int color4= color*0x01010101; const unsigned color4 = color*0x01010101;
if(b_w==32){ if(b_w==32){
for(y=0; y < b_h; y++){ for(y=0; y < b_h; y++){
*(uint32_t*)&dst[0 + y*stride]= color4; *(uint32_t*)&dst[0 + y*stride]= color4;