}
}
-void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t 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, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, const BlockNode *block, int plane_index, int w, int h){
if(block->type & BLOCK_INTRA){
int x, y;
const unsigned color = block->color[plane_index];
int ff_snow_alloc_blocks(SnowContext *s);
int ff_snow_frame_start(SnowContext *s);
void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride,
- int sx, int sy, int b_w, int b_h, BlockNode *block,
+ int sx, int sy, int b_w, int b_h, const BlockNode *block,
int plane_index, int w, int h);
int ff_snow_get_buffer(SnowContext *s, AVFrame *frame);
/* common inline functions */