slice_buffer 471 libavcodec/dsputil.h void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8); slice_buffer 489 libavcodec/snow.c slice_buffer sb;