static void FUNC(intra_pred)(HEVCContext *s, int x0, int y0, int log2_size, int c_idx) { #define PU(x) \ ((x) >> s->sps->log2_min_pu_size) #define MVF(x, y) \ (s->ref->tab_mvf[(x) + (y) * pic_width_in_min_pu]) #define MVF_PU(x, y) \ MVF(PU(x0 + ((x) << hshift)), PU(y0 + ((y) << vshift))) #define IS_INTRA(x, y) \ MVF_PU(x, y).is_intra #define MIN_TB_ADDR_ZS(x, y) \ s->pps->min_tb_addr_zs[(y) * s->sps->min_tb_width + (x)] #define EXTEND_LEFT(ptr, start, length) \ for (i = (start); i > (start) - (length); i--) \ ptr[i - 1] = ptr[i] #define EXTEND_RIGHT(ptr, start, length) \ for (i = (start); i < (start) + (length); i++) \ ptr[i] = ptr[i - 1] #define EXTEND_UP(ptr, start, length) EXTEND_LEFT(ptr, start, length) #define EXTEND_DOWN(ptr, start, length) EXTEND_RIGHT(ptr, start, length) #define EXTEND_LEFT_CIP(ptr, start, length) \ for (i = (start); i > (start) - (length); i--) \ if (!IS_INTRA(i - 1, -1)) \ ptr[i - 1] = ptr[i] #define EXTEND_RIGHT_CIP(ptr, start, length) \ for (i = (start); i < (start) + (length); i++) \ if (!IS_INTRA(i, -1)) \ ptr[i] = ptr[i - 1] #define EXTEND_UP_CIP(ptr, start, length) \ for (i = (start); i > (start) - (length); i--) \ if (!IS_INTRA(-1, i - 1)) \ ptr[i - 1] = ptr[i] #define EXTEND_UP_CIP_0(ptr, start, length) \ for (i = (start); i > (start) - (length); i--) \ ptr[i - 1] = ptr[i] #define EXTEND_DOWN_CIP(ptr, start, length) \ for (i = (start); i < (start) + (length); i++) \ if (!IS_INTRA(-1, i)) \ ptr[i] = ptr[i - 1] HEVCLocalContext *lc = s->HEVClc; int i; int hshift = s->sps->hshift[c_idx]; int vshift = s->sps->vshift[c_idx]; int size = (1 << log2_size); int size_in_luma = size << hshift; int size_in_tbs = size_in_luma >> s->sps->log2_min_transform_block_size; int x = x0 >> hshift; int y = y0 >> vshift; int x_tb = x0 >> s->sps->log2_min_transform_block_size; int y_tb = y0 >> s->sps->log2_min_transform_block_size; int cur_tb_addr = MIN_TB_ADDR_ZS(x_tb, y_tb); ptrdiff_t stride = s->frame->linesize[c_idx] / sizeof(pixel); pixel *src = (pixel*)s->frame->data[c_idx] + x + y * stride; int pic_width_in_min_pu = PU(s->sps->width); enum IntraPredMode mode = c_idx ? lc->pu.intra_pred_mode_c : lc->tu.cur_intra_pred_mode; pixel left_array[2 * MAX_TB_SIZE + 1]; pixel filtered_left_array[2 * MAX_TB_SIZE + 1]; pixel top_array[2 * MAX_TB_SIZE + 1]; pixel filtered_top_array[2 * MAX_TB_SIZE + 1]; pixel *left = left_array + 1; pixel *top = top_array + 1; pixel *filtered_left = filtered_left_array + 1; pixel *filtered_top = filtered_top_array + 1; int cand_bottom_left = lc->na.cand_bottom_left && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb - 1, y_tb + size_in_tbs); int cand_left = lc->na.cand_left; int cand_up_left = lc->na.cand_up_left; int cand_up = lc->na.cand_up; int cand_up_right = lc->na.cand_up_right && cur_tb_addr > MIN_TB_ADDR_ZS(x_tb + size_in_tbs, y_tb - 1); int bottom_left_size = (FFMIN(y0 + 2 * size_in_luma, s->sps->height) - (y0 + size_in_luma)) >> vshift; int top_right_size = (FFMIN(x0 + 2 * size_in_luma, s->sps->width) - (x0 + size_in_luma)) >> hshift; if (s->pps->constrained_intra_pred_flag == 1) { int size_in_luma_pu = PU(size_in_luma); int on_pu_edge_x = !(x0 & ((1 << s->sps->log2_min_pu_size) - 1)); int on_pu_edge_y = !(y0 & ((1 << s->sps->log2_min_pu_size) - 1)); if(!size_in_luma_pu) size_in_luma_pu++; if (cand_bottom_left == 1 && on_pu_edge_x) { int x_left_pu = PU(x0 - 1); int y_bottom_pu = PU(y0 + size_in_luma); cand_bottom_left = 0; for(i = 0; i < size_in_luma_pu; i++) cand_bottom_left |= MVF(x_left_pu, y_bottom_pu + i).is_intra; } if (cand_left == 1 && on_pu_edge_x) { int x_left_pu = PU(x0 - 1); int y_left_pu = PU(y0); cand_left = 0; for(i = 0; i < size_in_luma_pu; i++) cand_left |= MVF(x_left_pu, y_left_pu + i).is_intra; } if (cand_up_left == 1) { int x_left_pu = PU(x0 - 1); int y_top_pu = PU(y0 - 1); cand_up_left = MVF(x_left_pu, y_top_pu).is_intra; } if (cand_up == 1 && on_pu_edge_y) { int x_top_pu = PU(x0); int y_top_pu = PU(y0 - 1); cand_up = 0; for(i = 0; i < size_in_luma_pu; i++) cand_up |= MVF(x_top_pu + i, y_top_pu).is_intra; } if (cand_up_right == 1 && on_pu_edge_y) { int y_top_pu = PU(y0 - 1); int x_right_pu = PU(x0 + size_in_luma); cand_up_right = 0; for(i = 0; i < size_in_luma_pu; i++) cand_up_right |= MVF(x_right_pu + i, y_top_pu).is_intra; } for (i = 0; i < 2 * MAX_TB_SIZE; i++) { left[i] = 128; top[i] = 128; } } if (cand_bottom_left) { for (i = size + bottom_left_size; i < (size << 1); i++) if (IS_INTRA(-1, size + bottom_left_size - 1) || !s->pps->constrained_intra_pred_flag) left[i] = POS(-1, size + bottom_left_size - 1); for (i = size + bottom_left_size - 1; i >= size; i--) if (IS_INTRA(-1, i) || !s->pps->constrained_intra_pred_flag) left[i] = POS(-1, i); } if (cand_left) for (i = size - 1; i >= 0; i--) if (IS_INTRA(-1, i) || !s->pps->constrained_intra_pred_flag) left[i] = POS(-1, i); if (cand_up_left) if (IS_INTRA(-1, -1) || !s->pps->constrained_intra_pred_flag) { left[-1] = POS(-1, -1); top[-1] = left[-1]; } if (cand_up) for (i = size - 1; i >= 0; i--) if (IS_INTRA(i, -1) || !s->pps->constrained_intra_pred_flag) top[i] = POS(i, -1); if (cand_up_right) { for (i = size + top_right_size; i < (size << 1); i++) if (IS_INTRA(size + top_right_size - 1, -1) || !s->pps->constrained_intra_pred_flag) top[i] = POS(size + top_right_size - 1, -1); for (i = size + top_right_size - 1; i >= size; i--) if (IS_INTRA(i, -1) || !s->pps->constrained_intra_pred_flag) top[i] = POS(i, -1); } if (s->pps->constrained_intra_pred_flag == 1) { if (cand_bottom_left || cand_left || cand_up_left || cand_up || cand_up_right) { int size_max_x = x0 + ((2 * size) << hshift) < s->sps->width ? 2 * size : (s->sps->width - x0) >> hshift; int size_max_y = y0 + ((2 * size) << vshift) < s->sps->height ? 2 * size : (s->sps->height - y0) >> vshift; int j = size + (cand_bottom_left? bottom_left_size: 0) -1; if (!cand_up_right) { size_max_x = x0 + ((size) << hshift) < s->sps->width ? size : (s->sps->width - x0) >> hshift; } if (!cand_bottom_left) { size_max_y = y0 + (( size) << vshift) < s->sps->height ? size : (s->sps->height - y0) >> vshift; } if (cand_bottom_left || cand_left || cand_up_left) { while (j>-1 && !IS_INTRA(-1, j)) j--; if (!IS_INTRA(-1, j)) { j = 0; while(j < size_max_x && !IS_INTRA(j, -1)) j++; EXTEND_LEFT_CIP(top, j, j+1); left[-1] = top[-1]; j = 0; } } else { j = 0; while (j < size_max_x && !IS_INTRA(j, -1)) j++; if (j > 0) if (x0 > 0) { EXTEND_LEFT_CIP(top, j, j+1); } else { EXTEND_LEFT_CIP(top, j, j); top[-1] = top[0]; } left[-1] = top[-1]; j = 0; } if (cand_bottom_left || cand_left) { EXTEND_DOWN_CIP(left, j, size_max_y-j); } if (!cand_left) { EXTEND_DOWN(left, 0, size); } if (!cand_bottom_left) { EXTEND_DOWN(left, size, size); } if (x0 != 0 && y0 != 0) { EXTEND_UP_CIP(left, size_max_y - 1, size_max_y); } else if( x0 == 0) { EXTEND_UP_CIP_0(left, size_max_y - 1, size_max_y); } else{ EXTEND_UP_CIP(left, size_max_y - 1, size_max_y-1); } top[-1] = left[-1]; if (y0 != 0) { EXTEND_RIGHT_CIP(top, 0, size_max_x); } } } // Infer the unavailable samples if (!cand_bottom_left) { if (cand_left) { EXTEND_DOWN(left, size, size); } else if (cand_up_left) { EXTEND_DOWN(left, 0, 2 * size); cand_left = 1; } else if (cand_up) { left[-1] = top[0]; EXTEND_DOWN(left, 0, 2 * size); cand_up_left = 1; cand_left = 1; } else if (cand_up_right) { EXTEND_LEFT(top, size, size); left[-1] = top[0]; EXTEND_DOWN(left ,0 , 2 * size); cand_up = 1; cand_up_left = 1; cand_left = 1; } else { // No samples available top[0] = left[-1] = (1 << (BIT_DEPTH - 1)); EXTEND_RIGHT(top, 1, 2 * size - 1); EXTEND_DOWN(left, 0, 2 * size); } } if (!cand_left) { EXTEND_UP(left, size, size); } if (!cand_up_left) { left[-1] = left[0]; } if (!cand_up) { top[0] = left[-1]; EXTEND_RIGHT(top, 1, size-1); } if (!cand_up_right) { EXTEND_RIGHT(top, size, size); } top[-1] = left[-1]; #undef EXTEND_LEFT_CIP #undef EXTEND_RIGHT_CIP #undef EXTEND_UP_CIP #undef EXTEND_DOWN_CIP #undef IS_INTRA #undef MVF_PU #undef MVF #undef PU #undef EXTEND_LEFT #undef EXTEND_RIGHT #undef EXTEND_UP #undef EXTEND_DOWN #undef MIN_TB_ADDR_ZS // Filtering process if (c_idx == 0 && mode != INTRA_DC && size != 4) { int intra_hor_ver_dist_thresh[] = { 7, 1, 0 }; int min_dist_vert_hor = FFMIN(FFABS((int)mode - 26), FFABS((int)mode - 10)); if (min_dist_vert_hor > intra_hor_ver_dist_thresh[log2_size - 3]) { int threshold = 1 << (BIT_DEPTH - 5); if (s->sps->sps_strong_intra_smoothing_enable_flag && log2_size == 5 && FFABS(top[-1] + top[63] - 2 * top[31]) < threshold && FFABS(left[-1] + left[63] - 2 * left[31]) < threshold) { // We can't just overwrite values in top because it could be // a pointer into src filtered_top[-1] = top[-1]; filtered_top[63] = top[63]; for (i = 0; i < 63; i++) filtered_top[i] = ((64 - (i + 1)) * top[-1] + (i + 1) * top[63] + 32) >> 6; for (i = 0; i < 63; i++) left[i] = ((64 - (i + 1)) * left[-1] + (i + 1) * left[63] + 32) >> 6; top = filtered_top; } else { filtered_left[2 * size - 1] = left[2 * size - 1]; filtered_top[2 * size - 1] = top[2 * size - 1]; for (i = 2 * size - 2; i >= 0; i--) filtered_left[i] = (left[i + 1] + 2 * left[i] + left[i - 1] + 2) >> 2; filtered_top[-1] = filtered_left[-1] = (left[0] + 2 * left[-1] + top[0] + 2) >> 2; for (i = 2 * size - 2; i >= 0; i--) filtered_top[i] = (top[i + 1] + 2 * top[i] + top[i - 1] + 2) >> 2; left = filtered_left; top = filtered_top; } } } switch (mode) { case INTRA_PLANAR: s->hpc.pred_planar[log2_size - 2]((uint8_t*)src, (uint8_t*)top, (uint8_t*)left, stride); break; case INTRA_DC: s->hpc.pred_dc((uint8_t*)src, (uint8_t*)top, (uint8_t*)left, stride, log2_size, c_idx); break; default: s->hpc.pred_angular[log2_size - 2]((uint8_t*)src, (uint8_t*)top, (uint8_t*)left, stride, c_idx, mode); break; } }