-extern const int_fast8_t ff_left_modifier_l[8];
-extern const int_fast8_t ff_top_modifier_l[8];
-extern const int_fast8_t ff_left_modifier_c[7];
-extern const int_fast8_t ff_top_modifier_c[7];
-extern const vector_t ff_cavs_intra_mv;
-extern const vector_t ff_cavs_un_mv;
-
-static inline void load_intra_pred_luma(AVSContext *h, uint8_t *top,
- uint8_t **left, int block) {
- int i;
-
- switch(block) {
- case 0:
- *left = h->left_border_y;
- h->left_border_y[0] = h->left_border_y[1];
- memset(&h->left_border_y[17],h->left_border_y[16],9);
- memcpy(&top[1],&h->top_border_y[h->mbx*16],16);
- top[17] = top[16];
- top[0] = top[1];
- if((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
- h->left_border_y[0] = top[0] = h->topleft_border_y;
- break;
- case 1:
- *left = h->intern_border_y;
- for(i=0;i<8;i++)
- h->intern_border_y[i+1] = *(h->cy + 7 + i*h->l_stride);
- memset(&h->intern_border_y[9],h->intern_border_y[8],9);
- h->intern_border_y[0] = h->intern_border_y[1];
- memcpy(&top[1],&h->top_border_y[h->mbx*16+8],8);
- if(h->flags & C_AVAIL)
- memcpy(&top[9],&h->top_border_y[(h->mbx + 1)*16],8);
- else
- memset(&top[9],top[8],9);
- top[17] = top[16];
- top[0] = top[1];
- if(h->flags & B_AVAIL)
- h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx*16+7];
- break;
- case 2:
- *left = &h->left_border_y[8];
- memcpy(&top[1],h->cy + 7*h->l_stride,16);
- top[17] = top[16];
- top[0] = top[1];
- if(h->flags & A_AVAIL)
- top[0] = h->left_border_y[8];
- break;
- case 3:
- *left = &h->intern_border_y[8];
- for(i=0;i<8;i++)
- h->intern_border_y[i+9] = *(h->cy + 7 + (i+8)*h->l_stride);
- memset(&h->intern_border_y[17],h->intern_border_y[16],9);
- memcpy(&top[0],h->cy + 7 + 7*h->l_stride,9);
- memset(&top[9],top[8],9);
- break;
- }
-}
-
-static inline void load_intra_pred_chroma(AVSContext *h) {
- /* extend borders by one pixel */
- h->left_border_u[9] = h->left_border_u[8];
- h->left_border_v[9] = h->left_border_v[8];
- h->top_border_u[h->mbx*10+9] = h->top_border_u[h->mbx*10+8];
- h->top_border_v[h->mbx*10+9] = h->top_border_v[h->mbx*10+8];
- if(h->mbx && h->mby) {
- h->top_border_u[h->mbx*10] = h->left_border_u[0] = h->topleft_border_u;
- h->top_border_v[h->mbx*10] = h->left_border_v[0] = h->topleft_border_v;
- } else {
- h->left_border_u[0] = h->left_border_u[1];
- h->left_border_v[0] = h->left_border_v[1];
- h->top_border_u[h->mbx*10] = h->top_border_u[h->mbx*10+1];
- h->top_border_v[h->mbx*10] = h->top_border_v[h->mbx*10+1];
- }
-}
-
-static inline void modify_pred(const int_fast8_t *mod_table, int *mode) {
- *mode = mod_table[*mode];
- if(*mode < 0) {
- av_log(NULL, AV_LOG_ERROR, "Illegal intra prediction mode\n");
- *mode = 0;
- }
-}
-
-static inline void modify_mb_i(AVSContext *h, int *pred_mode_uv) {
- /* save pred modes before they get modified */
- h->pred_mode_Y[3] = h->pred_mode_Y[5];
- h->pred_mode_Y[6] = h->pred_mode_Y[8];
- h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
- h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
-
- /* modify pred modes according to availability of neighbour samples */
- if(!(h->flags & A_AVAIL)) {
- modify_pred(ff_left_modifier_l, &h->pred_mode_Y[4] );
- modify_pred(ff_left_modifier_l, &h->pred_mode_Y[7] );
- modify_pred(ff_left_modifier_c, pred_mode_uv );
- }
- if(!(h->flags & B_AVAIL)) {
- modify_pred(ff_top_modifier_l, &h->pred_mode_Y[4] );
- modify_pred(ff_top_modifier_l, &h->pred_mode_Y[5] );
- modify_pred(ff_top_modifier_c, pred_mode_uv );
- }
-}
-
-static inline void set_intra_mode_default(AVSContext *h) {
- h->pred_mode_Y[3] = h->pred_mode_Y[6] = INTRA_L_LP;
- h->top_pred_Y[h->mbx*2+0] = h->top_pred_Y[h->mbx*2+1] = INTRA_L_LP;
-}