/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include "vpx_ports/config.h" #include "encodemb.h" #include "encodemv.h" #include "vp8/common/common.h" #include "onyx_int.h" #include "vp8/common/extend.h" #include "vp8/common/entropymode.h" #include "vp8/common/quant_common.h" #include "segmentation.h" #include "vp8/common/setupintrarecon.h" #include "encodeintra.h" #include "vp8/common/reconinter.h" #include "vp8/common/invtrans.h" #include "rdopt.h" #include "vp8/common/findnearmv.h" #include "vp8/common/reconintra.h" #include "vp8/common/seg_common.h" #include #include #include #include "vp8/common/subpixel.h" #include "vpx_ports/vpx_timer.h" #include "vp8/common/pred_common.h" #define DBG_PRNT_SEGMAP 0 #if CONFIG_NEWBESTREFMV #include "vp8/common/mvref_common.h" #endif #if CONFIG_RUNTIME_CPU_DETECT #define RTCD(x) &cpi->common.rtcd.x #define IF_RTCD(x) (x) #else #define RTCD(x) NULL #define IF_RTCD(x) NULL #endif #ifdef ENC_DEBUG int enc_debug = 0; int mb_row_debug, mb_col_debug; #endif extern void vp8_stuff_mb_4x4(VP8_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run); extern void vp8cx_initialize_me_consts(VP8_COMP *cpi, int QIndex); extern void vp8_auto_select_speed(VP8_COMP *cpi); extern void vp8cx_init_mbrthread_data(VP8_COMP *cpi, MACROBLOCK *x, MB_ROW_COMP *mbr_ei, int mb_row, int count); int64_t vp8_rd_pick_inter_mode_sb(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *returnrate, int *returndistortion); extern void vp8cx_pick_mode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset, int *r, int *d); void vp8_build_block_offsets(MACROBLOCK *x); void vp8_setup_block_ptrs(MACROBLOCK *x); void vp8cx_encode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset, int output_enabled); void vp8cx_encode_inter_superblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset, int mb_col, int mb_row); void vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int output_enabled); void vp8cx_encode_intra_super_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int mb_col); static void adjust_act_zbin(VP8_COMP *cpi, MACROBLOCK *x); extern void vp8_stuff_mb_8x8(VP8_COMP *cpi, MACROBLOCKD *xd, TOKENEXTRA **t, int dry_run); #ifdef MODE_STATS unsigned int inter_y_modes[MB_MODE_COUNT]; unsigned int inter_uv_modes[VP8_UV_MODES]; unsigned int inter_b_modes[B_MODE_COUNT]; unsigned int y_modes[VP8_YMODES]; unsigned int i8x8_modes[VP8_I8X8_MODES]; unsigned int uv_modes[VP8_UV_MODES]; unsigned int uv_modes_y[VP8_YMODES][VP8_UV_MODES]; unsigned int b_modes[B_MODE_COUNT]; #endif /* activity_avg must be positive, or flat regions could get a zero weight * (infinite lambda), which confounds analysis. * This also avoids the need for divide by zero checks in * vp8_activity_masking(). */ #define VP8_ACTIVITY_AVG_MIN (64) /* This is used as a reference when computing the source variance for the * purposes of activity masking. * Eventually this should be replaced by custom no-reference routines, * which will be faster. */ static const unsigned char VP8_VAR_OFFS[16] = { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }; // Original activity measure from Tim T's code. static unsigned int tt_activity_measure(VP8_COMP *cpi, MACROBLOCK *x) { unsigned int act; unsigned int sse; /* TODO: This could also be done over smaller areas (8x8), but that would * require extensive changes elsewhere, as lambda is assumed to be fixed * over an entire MB in most of the code. * Another option is to compute four 8x8 variances, and pick a single * lambda using a non-linear combination (e.g., the smallest, or second * smallest, etc.). */ act = VARIANCE_INVOKE(&cpi->rtcd.variance, var16x16)(x->src.y_buffer, x->src.y_stride, VP8_VAR_OFFS, 0, &sse); act = act << 4; /* If the region is flat, lower the activity some more. */ if (act < 8 << 12) act = act < 5 << 12 ? act : 5 << 12; return act; } // Stub for alternative experimental activity measures. static unsigned int alt_activity_measure(VP8_COMP *cpi, MACROBLOCK *x, int use_dc_pred) { return vp8_encode_intra(cpi, x, use_dc_pred); } // Measure the activity of the current macroblock // What we measure here is TBD so abstracted to this function #define ALT_ACT_MEASURE 1 static unsigned int mb_activity_measure(VP8_COMP *cpi, MACROBLOCK *x, int mb_row, int mb_col) { unsigned int mb_activity; if (ALT_ACT_MEASURE) { int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row); // Or use and alternative. mb_activity = alt_activity_measure(cpi, x, use_dc_pred); } else { // Original activity measure from Tim T's code. mb_activity = tt_activity_measure(cpi, x); } if (mb_activity < VP8_ACTIVITY_AVG_MIN) mb_activity = VP8_ACTIVITY_AVG_MIN; return mb_activity; } // Calculate an "average" mb activity value for the frame #define ACT_MEDIAN 0 static void calc_av_activity(VP8_COMP *cpi, int64_t activity_sum) { #if ACT_MEDIAN // Find median: Simple n^2 algorithm for experimentation { unsigned int median; unsigned int i, j; unsigned int *sortlist; unsigned int tmp; // Create a list to sort to CHECK_MEM_ERROR(sortlist, vpx_calloc(sizeof(unsigned int), cpi->common.MBs)); // Copy map to sort list vpx_memcpy(sortlist, cpi->mb_activity_map, sizeof(unsigned int) * cpi->common.MBs); // Ripple each value down to its correct position for (i = 1; i < cpi->common.MBs; i ++) { for (j = i; j > 0; j --) { if (sortlist[j] < sortlist[j - 1]) { // Swap values tmp = sortlist[j - 1]; sortlist[j - 1] = sortlist[j]; sortlist[j] = tmp; } else break; } } // Even number MBs so estimate median as mean of two either side. median = (1 + sortlist[cpi->common.MBs >> 1] + sortlist[(cpi->common.MBs >> 1) + 1]) >> 1; cpi->activity_avg = median; vpx_free(sortlist); } #else // Simple mean for now cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs); #endif if (cpi->activity_avg < VP8_ACTIVITY_AVG_MIN) cpi->activity_avg = VP8_ACTIVITY_AVG_MIN; // Experimental code: return fixed value normalized for several clips if (ALT_ACT_MEASURE) cpi->activity_avg = 100000; } #define USE_ACT_INDEX 0 #define OUTPUT_NORM_ACT_STATS 0 #if USE_ACT_INDEX // Calculate and activity index for each mb static void calc_activity_index(VP8_COMP *cpi, MACROBLOCK *x) { VP8_COMMON *const cm = & cpi->common; int mb_row, mb_col; int64_t act; int64_t a; int64_t b; #if OUTPUT_NORM_ACT_STATS FILE *f = fopen("norm_act.stt", "a"); fprintf(f, "\n%12d\n", cpi->activity_avg); #endif // Reset pointers to start of activity map x->mb_activity_ptr = cpi->mb_activity_map; // Calculate normalized mb activity number. for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) { // for each macroblock col in image for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) { // Read activity from the map act = *(x->mb_activity_ptr); // Calculate a normalized activity number a = act + 4 * cpi->activity_avg; b = 4 * act + cpi->activity_avg; if (b >= a) *(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1; else *(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b); #if OUTPUT_NORM_ACT_STATS fprintf(f, " %6d", *(x->mb_activity_ptr)); #endif // Increment activity map pointers x->mb_activity_ptr++; } #if OUTPUT_NORM_ACT_STATS fprintf(f, "\n"); #endif } #if OUTPUT_NORM_ACT_STATS fclose(f); #endif } #endif // Loop through all MBs. Note activity of each, average activity and // calculate a normalized activity for each static void build_activity_map(VP8_COMP *cpi) { MACROBLOCK *const x = & cpi->mb; MACROBLOCKD *xd = &x->e_mbd; VP8_COMMON *const cm = & cpi->common; #if ALT_ACT_MEASURE YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx]; int recon_yoffset; int recon_y_stride = new_yv12->y_stride; #endif int mb_row, mb_col; unsigned int mb_activity; int64_t activity_sum = 0; // for each macroblock row in image for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) { #if ALT_ACT_MEASURE // reset above block coeffs xd->up_available = (mb_row != 0); recon_yoffset = (mb_row * recon_y_stride * 16); #endif // for each macroblock col in image for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) { #if ALT_ACT_MEASURE xd->dst.y_buffer = new_yv12->y_buffer + recon_yoffset; xd->left_available = (mb_col != 0); recon_yoffset += 16; #endif // Copy current mb to a buffer vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); // measure activity mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col); // Keep frame sum activity_sum += mb_activity; // Store MB level activity details. *x->mb_activity_ptr = mb_activity; // Increment activity map pointer x->mb_activity_ptr++; // adjust to the next column of source macroblocks x->src.y_buffer += 16; } // adjust to the next row of mbs x->src.y_buffer += 16 * x->src.y_stride - 16 * cm->mb_cols; #if ALT_ACT_MEASURE // extend the recon for intra prediction vp8_extend_mb_row(new_yv12, xd->dst.y_buffer + 16, xd->dst.u_buffer + 8, xd->dst.v_buffer + 8); #endif } // Calculate an "average" MB activity calc_av_activity(cpi, activity_sum); #if USE_ACT_INDEX // Calculate an activity index number of each mb calc_activity_index(cpi, x); #endif } // Macroblock activity masking void vp8_activity_masking(VP8_COMP *cpi, MACROBLOCK *x) { #if USE_ACT_INDEX x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2); x->errorperbit = x->rdmult * 100 / (110 * x->rddiv); x->errorperbit += (x->errorperbit == 0); #else int64_t a; int64_t b; int64_t act = *(x->mb_activity_ptr); // Apply the masking to the RD multiplier. a = act + (2 * cpi->activity_avg); b = (2 * act) + cpi->activity_avg; x->rdmult = (unsigned int)(((int64_t)x->rdmult * b + (a >> 1)) / a); x->errorperbit = x->rdmult * 100 / (110 * x->rddiv); x->errorperbit += (x->errorperbit == 0); #endif // Activity based Zbin adjustment adjust_act_zbin(cpi, x); } static void update_state(VP8_COMP *cpi, MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) { int i; MACROBLOCKD *xd = &x->e_mbd; MODE_INFO *mi = &ctx->mic; MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi; int mb_mode = mi->mbmi.mode; int mb_mode_index = ctx->best_mode_index; #if CONFIG_DEBUG assert(mb_mode < MB_MODE_COUNT); assert(mb_mode_index < MAX_MODES); assert(mi->mbmi.ref_frame < MAX_REF_FRAMES); #endif // Restore the coding context of the MB to that that was in place // when the mode was picked for it vpx_memcpy(xd->mode_info_context, mi, sizeof(MODE_INFO)); #if CONFIG_SUPERBLOCKS if (mi->mbmi.encoded_as_sb) { vpx_memcpy(xd->mode_info_context + 1, mi, sizeof(MODE_INFO)); vpx_memcpy(xd->mode_info_context + cpi->common.mode_info_stride, mi, sizeof(MODE_INFO)); vpx_memcpy(xd->mode_info_context + cpi->common.mode_info_stride + 1, mi, sizeof(MODE_INFO)); } #endif if (mb_mode == B_PRED) { for (i = 0; i < 16; i++) { xd->block[i].bmi.as_mode = xd->mode_info_context->bmi[i].as_mode; assert(xd->block[i].bmi.as_mode.first < MB_MODE_COUNT); } } else if (mb_mode == I8X8_PRED) { for (i = 0; i < 16; i++) { xd->block[i].bmi = xd->mode_info_context->bmi[i]; } } else if (mb_mode == SPLITMV) { vpx_memcpy(x->partition_info, &ctx->partition_info, sizeof(PARTITION_INFO)); mbmi->mv[0].as_int = x->partition_info->bmi[15].mv.as_int; mbmi->mv[1].as_int = x->partition_info->bmi[15].second_mv.as_int; } #if CONFIG_TX_SELECT { int segment_id = mbmi->segment_id; if (!segfeature_active(xd, segment_id, SEG_LVL_EOB) || get_segdata(xd, segment_id, SEG_LVL_EOB)) { for (i = 0; i < NB_TXFM_MODES; i++) { cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i]; } } } #endif if (cpi->common.frame_type == KEY_FRAME) { // Restore the coding modes to that held in the coding context // if (mb_mode == B_PRED) // for (i = 0; i < 16; i++) // { // xd->block[i].bmi.as_mode = // xd->mode_info_context->bmi[i].as_mode; // assert(xd->mode_info_context->bmi[i].as_mode < MB_MODE_COUNT); // } #if CONFIG_INTERNAL_STATS static const int kf_mode_index[] = { THR_DC /*DC_PRED*/, THR_V_PRED /*V_PRED*/, THR_H_PRED /*H_PRED*/, THR_D45_PRED /*D45_PRED*/, THR_D135_PRED /*D135_PRED*/, THR_D117_PRED /*D117_PRED*/, THR_D153_PRED /*D153_PRED*/, THR_D27_PRED /*D27_PRED*/, THR_D63_PRED /*D63_PRED*/, THR_TM /*TM_PRED*/, THR_I8X8_PRED /*I8X8_PRED*/, THR_B_PRED /*B_PRED*/, }; cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++; #endif } else { /* // Reduce the activation RD thresholds for the best choice mode if ((cpi->rd_baseline_thresh[mb_mode_index] > 0) && (cpi->rd_baseline_thresh[mb_mode_index] < (INT_MAX >> 2))) { int best_adjustment = (cpi->rd_thresh_mult[mb_mode_index] >> 2); cpi->rd_thresh_mult[mb_mode_index] = (cpi->rd_thresh_mult[mb_mode_index] >= (MIN_THRESHMULT + best_adjustment)) ? cpi->rd_thresh_mult[mb_mode_index] - best_adjustment : MIN_THRESHMULT; cpi->rd_threshes[mb_mode_index] = (cpi->rd_baseline_thresh[mb_mode_index] >> 7) * cpi->rd_thresh_mult[mb_mode_index]; } */ // Note how often each mode chosen as best cpi->mode_chosen_counts[mb_mode_index]++; rd_update_mvcount(cpi, x, &ctx->best_ref_mv, &ctx->second_best_ref_mv); cpi->prediction_error += ctx->distortion; cpi->intra_error += ctx->intra_error; cpi->rd_comp_pred_diff[0] += ctx->single_pred_diff; cpi->rd_comp_pred_diff[1] += ctx->comp_pred_diff; cpi->rd_comp_pred_diff[2] += ctx->hybrid_pred_diff; } } static void pick_mb_modes(VP8_COMP *cpi, VP8_COMMON *cm, int mb_row, int mb_col, MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp, int *totalrate, int *totaldist) { int i; int map_index; int recon_yoffset, recon_uvoffset; int ref_fb_idx = cm->lst_fb_idx; int dst_fb_idx = cm->new_fb_idx; int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride; int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride; ENTROPY_CONTEXT_PLANES left_context[2]; ENTROPY_CONTEXT_PLANES above_context[2]; ENTROPY_CONTEXT_PLANES *initial_above_context_ptr = cm->above_context + mb_col; // Offsets to move pointers from MB to MB within a SB in raster order int row_delta[4] = { 0, +1, 0, -1}; int col_delta[4] = { +1, -1, +1, +1}; /* Function should not modify L & A contexts; save and restore on exit */ vpx_memcpy(left_context, cm->left_context, sizeof(left_context)); vpx_memcpy(above_context, initial_above_context_ptr, sizeof(above_context)); /* Encode MBs in raster order within the SB */ for (i = 0; i < 4; i++) { int dy = row_delta[i]; int dx = col_delta[i]; int offset_unextended = dy * cm->mb_cols + dx; int offset_extended = dy * xd->mode_info_stride + dx; MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi; // TODO Many of the index items here can be computed more efficiently! if ((mb_row >= cm->mb_rows) || (mb_col >= cm->mb_cols)) { // MB lies outside frame, move on mb_row += dy; mb_col += dx; // Update pointers x->src.y_buffer += 16 * (dx + dy * x->src.y_stride); x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride); x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride); x->gf_active_ptr += offset_unextended; x->partition_info += offset_extended; xd->mode_info_context += offset_extended; xd->prev_mode_info_context += offset_extended; #if CONFIG_DEBUG assert((xd->prev_mode_info_context - cpi->common.prev_mip) == (xd->mode_info_context - cpi->common.mip)); #endif continue; } // Index of the MB in the SB 0..3 xd->mb_index = i; map_index = (mb_row * cpi->common.mb_cols) + mb_col; x->mb_activity_ptr = &cpi->mb_activity_map[map_index]; // set above context pointer xd->above_context = cm->above_context + mb_col; // Restore the appropriate left context depending on which // row in the SB the MB is situated xd->left_context = cm->left_context + (i >> 1); // Set up distance of MB to edge of frame in 1/8th pel units xd->mb_to_top_edge = -((mb_row * 16) << 3); xd->mb_to_left_edge = -((mb_col * 16) << 3); xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3; xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3; // Set up limit values for MV components to prevent them from // extending beyond the UMV borders assuming 16x16 block size x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_row_max = ((cm->mb_rows - mb_row) * 16 + (VP8BORDERINPIXELS - 16 - INTERP_EXTEND)); x->mv_col_max = ((cm->mb_cols - mb_col) * 16 + (VP8BORDERINPIXELS - 16 - INTERP_EXTEND)); xd->up_available = (mb_row != 0); xd->left_available = (mb_col != 0); recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16); recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8); xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset; xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset; xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset; // Copy current MB to a work buffer vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); x->rddiv = cpi->RDDIV; x->rdmult = cpi->RDMULT; if (cpi->oxcf.tuning == VP8_TUNE_SSIM) vp8_activity_masking(cpi, x); // Is segmentation enabled if (xd->segmentation_enabled) { // Code to set segment id in xd->mbmi.segment_id if (xd->update_mb_segmentation_map) mbmi->segment_id = cpi->segmentation_map[map_index]; else mbmi->segment_id = cm->last_frame_seg_map[map_index]; if (mbmi->segment_id > 3) mbmi->segment_id = 0; vp8cx_mb_init_quantizer(cpi, x); } else // Set to Segment 0 by default mbmi->segment_id = 0; x->active_ptr = cpi->active_map + map_index; #if CONFIG_SUPERBLOCKS xd->mode_info_context->mbmi.encoded_as_sb = 0; #endif cpi->update_context = 0; // TODO Do we need this now?? // Find best coding mode & reconstruct the MB so it is available // as a predictor for MBs that follow in the SB if (cm->frame_type == KEY_FRAME) { int r, d; vp8_rd_pick_intra_mode(cpi, x, &r, &d); *totalrate += r; *totaldist += d; // Dummy encode, do not do the tokenization vp8cx_encode_intra_macro_block(cpi, x, tp, 0); // Note the encoder may have changed the segment_id // Save the coding context vpx_memcpy(&x->mb_context[i].mic, xd->mode_info_context, sizeof(MODE_INFO)); } else { int seg_id, r, d; if (xd->segmentation_enabled && cpi->seg0_cnt > 0 && !segfeature_active(xd, 0, SEG_LVL_REF_FRAME) && segfeature_active(xd, 1, SEG_LVL_REF_FRAME) && check_segref(xd, 1, INTRA_FRAME) + check_segref(xd, 1, LAST_FRAME) + check_segref(xd, 1, GOLDEN_FRAME) + check_segref(xd, 1, ALTREF_FRAME) == 1) { cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt; } else { cpi->seg0_progress = (((mb_col & ~1) * 2 + (mb_row & ~1) * cm->mb_cols + i) << 16) / cm->MBs; } vp8cx_pick_mode_inter_macroblock(cpi, x, recon_yoffset, recon_uvoffset, &r, &d); *totalrate += r; *totaldist += d; // Dummy encode, do not do the tokenization vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset, 0); seg_id = mbmi->segment_id; if (cpi->mb.e_mbd.segmentation_enabled && seg_id == 0) { cpi->seg0_idx++; } if (!xd->segmentation_enabled || !segfeature_active(xd, seg_id, SEG_LVL_REF_FRAME) || check_segref(xd, seg_id, INTRA_FRAME) + check_segref(xd, seg_id, LAST_FRAME) + check_segref(xd, seg_id, GOLDEN_FRAME) + check_segref(xd, seg_id, ALTREF_FRAME) > 1) { // Get the prediction context and status int pred_flag = get_pred_flag(xd, PRED_REF); int pred_context = get_pred_context(cm, xd, PRED_REF); // Count prediction success cpi->ref_pred_count[pred_context][pred_flag]++; } } // Next MB mb_row += dy; mb_col += dx; x->src.y_buffer += 16 * (dx + dy * x->src.y_stride); x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride); x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride); x->gf_active_ptr += offset_unextended; x->partition_info += offset_extended; xd->mode_info_context += offset_extended; xd->prev_mode_info_context += offset_extended; #if CONFIG_DEBUG assert((xd->prev_mode_info_context - cpi->common.prev_mip) == (xd->mode_info_context - cpi->common.mip)); #endif } /* Restore L & A coding context to those in place on entry */ vpx_memcpy(cm->left_context, left_context, sizeof(left_context)); vpx_memcpy(initial_above_context_ptr, above_context, sizeof(above_context)); } #if CONFIG_SUPERBLOCKS static void pick_sb_modes (VP8_COMP *cpi, VP8_COMMON *cm, int mb_row, int mb_col, MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp, int *totalrate, int *totaldist) { int map_index; int recon_yoffset, recon_uvoffset; int ref_fb_idx = cm->lst_fb_idx; int dst_fb_idx = cm->new_fb_idx; int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride; int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride; ENTROPY_CONTEXT_PLANES left_context[2]; ENTROPY_CONTEXT_PLANES above_context[2]; ENTROPY_CONTEXT_PLANES *initial_above_context_ptr = cm->above_context + mb_col; /* Function should not modify L & A contexts; save and restore on exit */ vpx_memcpy (left_context, cm->left_context, sizeof(left_context)); vpx_memcpy (above_context, initial_above_context_ptr, sizeof(above_context)); map_index = (mb_row * cpi->common.mb_cols) + mb_col; x->mb_activity_ptr = &cpi->mb_activity_map[map_index]; /* set above context pointer */ xd->above_context = cm->above_context + mb_col; /* Restore the appropriate left context depending on which * row in the SB the MB is situated */ xd->left_context = cm->left_context; // Set up distance of MB to edge of frame in 1/8th pel units xd->mb_to_top_edge = -((mb_row * 16) << 3); xd->mb_to_left_edge = -((mb_col * 16) << 3); xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3; xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3; /* Set up limit values for MV components to prevent them from * extending beyond the UMV borders assuming 16x16 block size */ x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_row_max = ((cm->mb_rows - mb_row) * 16 + (VP8BORDERINPIXELS - 32 - INTERP_EXTEND)); x->mv_col_max = ((cm->mb_cols - mb_col) * 16 + (VP8BORDERINPIXELS - 32 - INTERP_EXTEND)); xd->up_available = (mb_row != 0); xd->left_available = (mb_col != 0); recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16); recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8); xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset; xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset; xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset; #if 0 // FIXME /* Copy current MB to a work buffer */ vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); #endif x->rddiv = cpi->RDDIV; x->rdmult = cpi->RDMULT; if(cpi->oxcf.tuning == VP8_TUNE_SSIM) vp8_activity_masking(cpi, x); /* Is segmentation enabled */ if (xd->segmentation_enabled) { /* Code to set segment id in xd->mbmi.segment_id */ if (xd->update_mb_segmentation_map) xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index] && cpi->segmentation_map[map_index + 1] && cpi->segmentation_map[map_index + cm->mb_cols] && cpi->segmentation_map[map_index + cm->mb_cols + 1]; else xd->mode_info_context->mbmi.segment_id = cm->last_frame_seg_map[map_index] && cm->last_frame_seg_map[map_index + 1] && cm->last_frame_seg_map[map_index + cm->mb_cols] && cm->last_frame_seg_map[map_index + cm->mb_cols + 1]; if (xd->mode_info_context->mbmi.segment_id > 3) xd->mode_info_context->mbmi.segment_id = 0; vp8cx_mb_init_quantizer(cpi, x); } else /* Set to Segment 0 by default */ xd->mode_info_context->mbmi.segment_id = 0; x->active_ptr = cpi->active_map + map_index; cpi->update_context = 0; // TODO Do we need this now?? /* Find best coding mode & reconstruct the MB so it is available * as a predictor for MBs that follow in the SB */ if (cm->frame_type == KEY_FRAME) { vp8_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist); /* Save the coding context */ vpx_memcpy(&x->sb_context[0].mic, xd->mode_info_context, sizeof(MODE_INFO)); } else { if (xd->segmentation_enabled && cpi->seg0_cnt > 0 && !segfeature_active( xd, 0, SEG_LVL_REF_FRAME ) && segfeature_active( xd, 1, SEG_LVL_REF_FRAME ) && check_segref(xd, 1, INTRA_FRAME) + check_segref(xd, 1, LAST_FRAME) + check_segref(xd, 1, GOLDEN_FRAME) + check_segref(xd, 1, ALTREF_FRAME) == 1) { cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt; } else { cpi->seg0_progress = (((mb_col & ~1) * 2 + (mb_row & ~1) * cm->mb_cols) << 16) / cm->MBs; } vp8_rd_pick_inter_mode_sb(cpi, x, recon_yoffset, recon_uvoffset, totalrate, totaldist); } /* Restore L & A coding context to those in place on entry */ vpx_memcpy (cm->left_context, left_context, sizeof(left_context)); vpx_memcpy (initial_above_context_ptr, above_context, sizeof(above_context)); } #endif static void encode_sb(VP8_COMP *cpi, VP8_COMMON *cm, int mbrow, int mbcol, MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp) { int i; int map_index; int mb_row, mb_col; int recon_yoffset, recon_uvoffset; int ref_fb_idx = cm->lst_fb_idx; int dst_fb_idx = cm->new_fb_idx; int recon_y_stride = cm->yv12_fb[ref_fb_idx].y_stride; int recon_uv_stride = cm->yv12_fb[ref_fb_idx].uv_stride; int row_delta[4] = { 0, +1, 0, -1}; int col_delta[4] = { +1, -1, +1, +1}; mb_row = mbrow; mb_col = mbcol; /* Encode MBs in raster order within the SB */ for (i = 0; i < 4; i++) { int dy = row_delta[i]; int dx = col_delta[i]; int offset_extended = dy * xd->mode_info_stride + dx; int offset_unextended = dy * cm->mb_cols + dx; MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi; if ((mb_row >= cm->mb_rows) || (mb_col >= cm->mb_cols)) { // MB lies outside frame, move on mb_row += dy; mb_col += dx; x->src.y_buffer += 16 * (dx + dy * x->src.y_stride); x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride); x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride); x->gf_active_ptr += offset_unextended; x->partition_info += offset_extended; xd->mode_info_context += offset_extended; xd->prev_mode_info_context += offset_extended; #if CONFIG_DEBUG assert((xd->prev_mode_info_context - cpi->common.prev_mip) == (xd->mode_info_context - cpi->common.mip)); #endif continue; } xd->mb_index = i; #ifdef ENC_DEBUG enc_debug = (cpi->common.current_video_frame == 0 && mb_row == 0 && mb_col == 0); mb_col_debug = mb_col; mb_row_debug = mb_row; #endif // Restore MB state to that when it was picked #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) { update_state(cpi, x, &x->sb_context[i]); cpi->sb_count++; } else #endif update_state(cpi, x, &x->mb_context[i]); map_index = (mb_row * cpi->common.mb_cols) + mb_col; x->mb_activity_ptr = &cpi->mb_activity_map[map_index]; // reset above block coeffs xd->above_context = cm->above_context + mb_col; xd->left_context = cm->left_context + (i >> 1); // Set up distance of MB to edge of the frame in 1/8th pel units xd->mb_to_top_edge = -((mb_row * 16) << 3); xd->mb_to_left_edge = -((mb_col * 16) << 3); xd->mb_to_bottom_edge = ((cm->mb_rows - 1 - mb_row) * 16) << 3; xd->mb_to_right_edge = ((cm->mb_cols - 1 - mb_col) * 16) << 3; #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) { // Set up limit values for MV components to prevent them from // extending beyond the UMV borders assuming 32x32 block size x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_row_max = ((cm->mb_rows - mb_row) * 16 + (VP8BORDERINPIXELS - 32 - INTERP_EXTEND)); x->mv_col_max = ((cm->mb_cols - mb_col) * 16 + (VP8BORDERINPIXELS - 32 - INTERP_EXTEND)); } else { #endif // Set up limit values for MV components to prevent them from // extending beyond the UMV borders assuming 16x16 block size x->mv_row_min = -((mb_row * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_col_min = -((mb_col * 16) + VP8BORDERINPIXELS - INTERP_EXTEND); x->mv_row_max = ((cm->mb_rows - mb_row) * 16 + (VP8BORDERINPIXELS - 16 - INTERP_EXTEND)); x->mv_col_max = ((cm->mb_cols - mb_col) * 16 + (VP8BORDERINPIXELS - 16 - INTERP_EXTEND)); #if CONFIG_SUPERBLOCKS } #endif xd->up_available = (mb_row != 0); xd->left_available = (mb_col != 0); recon_yoffset = (mb_row * recon_y_stride * 16) + (mb_col * 16); recon_uvoffset = (mb_row * recon_uv_stride * 8) + (mb_col * 8); xd->dst.y_buffer = cm->yv12_fb[dst_fb_idx].y_buffer + recon_yoffset; xd->dst.u_buffer = cm->yv12_fb[dst_fb_idx].u_buffer + recon_uvoffset; xd->dst.v_buffer = cm->yv12_fb[dst_fb_idx].v_buffer + recon_uvoffset; // Copy current MB to a work buffer vp8_copy_mem16x16(x->src.y_buffer, x->src.y_stride, x->thismb, 16); if (cpi->oxcf.tuning == VP8_TUNE_SSIM) vp8_activity_masking(cpi, x); // Is segmentation enabled if (xd->segmentation_enabled) { vp8cx_mb_init_quantizer(cpi, x); } x->active_ptr = cpi->active_map + map_index; cpi->update_context = 0; if (cm->frame_type == KEY_FRAME) { #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) vp8cx_encode_intra_super_block(cpi, x, tp, mb_col); else #endif vp8cx_encode_intra_macro_block(cpi, x, tp, 1); // Note the encoder may have changed the segment_id #ifdef MODE_STATS y_modes[mbmi->mode]++; #endif } else { unsigned char *segment_id; int seg_ref_active; if (xd->mode_info_context->mbmi.ref_frame) { unsigned char pred_context; pred_context = get_pred_context(cm, xd, PRED_COMP); if (xd->mode_info_context->mbmi.second_ref_frame == INTRA_FRAME) cpi->single_pred_count[pred_context]++; else cpi->comp_pred_count[pred_context]++; } #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) vp8cx_encode_inter_superblock(cpi, x, tp, recon_yoffset, recon_uvoffset, mb_col, mb_row); else #endif vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset, 1); // Note the encoder may have changed the segment_id #ifdef MODE_STATS inter_y_modes[mbmi->mode]++; if (mbmi->mode == SPLITMV) { int b; for (b = 0; b < x->partition_info->count; b++) { inter_b_modes[x->partition_info->bmi[b].mode]++; } } #endif // If we have just a single reference frame coded for a segment then // exclude from the reference frame counts used to work out // probabilities. NOTE: At the moment we dont support custom trees // for the reference frame coding for each segment but this is a // possible future action. segment_id = &mbmi->segment_id; seg_ref_active = segfeature_active(xd, *segment_id, SEG_LVL_REF_FRAME); if (!seg_ref_active || ((check_segref(xd, *segment_id, INTRA_FRAME) + check_segref(xd, *segment_id, LAST_FRAME) + check_segref(xd, *segment_id, GOLDEN_FRAME) + check_segref(xd, *segment_id, ALTREF_FRAME)) > 1)) { { cpi->count_mb_ref_frame_usage[mbmi->ref_frame]++; } } // Count of last ref frame 0,0 usage if ((mbmi->mode == ZEROMV) && (mbmi->ref_frame == LAST_FRAME)) cpi->inter_zz_count++; } // TODO Partitioning is broken! cpi->tplist[mb_row].stop = *tp; #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) { x->src.y_buffer += 32; x->src.u_buffer += 16; x->src.v_buffer += 16; x->gf_active_ptr += 2; x->partition_info += 2; xd->mode_info_context += 2; xd->prev_mode_info_context += 2; break; } #endif // Next MB mb_row += dy; mb_col += dx; x->src.y_buffer += 16 * (dx + dy * x->src.y_stride); x->src.u_buffer += 8 * (dx + dy * x->src.uv_stride); x->src.v_buffer += 8 * (dx + dy * x->src.uv_stride); x->gf_active_ptr += offset_unextended; x->partition_info += offset_extended; xd->mode_info_context += offset_extended; xd->prev_mode_info_context += offset_extended; #if CONFIG_DEBUG assert((xd->prev_mode_info_context - cpi->common.prev_mip) == (xd->mode_info_context - cpi->common.mip)); #endif } // debug output #if DBG_PRNT_SEGMAP { FILE *statsfile; statsfile = fopen("segmap2.stt", "a"); fprintf(statsfile, "\n"); fclose(statsfile); } #endif } static void encode_sb_row(VP8_COMP *cpi, VP8_COMMON *cm, int mb_row, MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp, int *totalrate) { int mb_col; int mb_cols = cm->mb_cols; // Initialize the left context for the new SB row vpx_memset(cm->left_context, 0, sizeof(cm->left_context)); // Code each SB in the row for (mb_col = 0; mb_col < mb_cols; mb_col += 2) { int mb_rate = 0, mb_dist = 0; #if CONFIG_SUPERBLOCKS int sb_rate = INT_MAX, sb_dist; #endif #if CONFIG_DEBUG MODE_INFO *mic = xd->mode_info_context; PARTITION_INFO *pi = x->partition_info; signed char *gfa = x->gf_active_ptr; unsigned char *yb = x->src.y_buffer; unsigned char *ub = x->src.u_buffer; unsigned char *vb = x->src.v_buffer; #endif #if CONFIG_SUPERBLOCKS // Pick modes assuming the SB is coded as 4 independent MBs xd->mode_info_context->mbmi.encoded_as_sb = 0; #endif pick_mb_modes(cpi, cm, mb_row, mb_col, x, xd, tp, &mb_rate, &mb_dist); #if CONFIG_SUPERBLOCKS mb_rate += vp8_cost_bit(cm->sb_coded, 0); #endif x->src.y_buffer -= 32; x->src.u_buffer -= 16; x->src.v_buffer -= 16; x->gf_active_ptr -= 2; x->partition_info -= 2; xd->mode_info_context -= 2; xd->prev_mode_info_context -= 2; #if CONFIG_DEBUG assert(x->gf_active_ptr == gfa); assert(x->partition_info == pi); assert(xd->mode_info_context == mic); assert(x->src.y_buffer == yb); assert(x->src.u_buffer == ub); assert(x->src.v_buffer == vb); #endif #if CONFIG_SUPERBLOCKS if (!((( mb_cols & 1) && mb_col == mb_cols - 1) || ((cm->mb_rows & 1) && mb_row == cm->mb_rows - 1))) { /* Pick a mode assuming that it applies to all 4 of the MBs in the SB */ xd->mode_info_context->mbmi.encoded_as_sb = 1; pick_sb_modes(cpi, cm, mb_row, mb_col, x, xd, tp, &sb_rate, &sb_dist); sb_rate += vp8_cost_bit(cm->sb_coded, 1); } /* Decide whether to encode as a SB or 4xMBs */ if (sb_rate < INT_MAX && RDCOST(x->rdmult, x->rddiv, sb_rate, sb_dist) < RDCOST(x->rdmult, x->rddiv, mb_rate, mb_dist)) { xd->mode_info_context->mbmi.encoded_as_sb = 1; xd->mode_info_context[1].mbmi.encoded_as_sb = 1; xd->mode_info_context[cm->mode_info_stride].mbmi.encoded_as_sb = 1; xd->mode_info_context[1 + cm->mode_info_stride].mbmi.encoded_as_sb = 1; *totalrate += sb_rate; } else #endif { #if CONFIG_SUPERBLOCKS xd->mode_info_context->mbmi.encoded_as_sb = 0; if (cm->mb_cols - 1 > mb_col) xd->mode_info_context[1].mbmi.encoded_as_sb = 0; if (cm->mb_rows - 1 > mb_row) { xd->mode_info_context[cm->mode_info_stride].mbmi.encoded_as_sb = 0; if (cm->mb_cols - 1 > mb_col) xd->mode_info_context[1 + cm->mode_info_stride].mbmi.encoded_as_sb = 0; } #endif *totalrate += mb_rate; } /* Encode SB using best computed mode(s) */ encode_sb(cpi, cm, mb_row, mb_col, x, xd, tp); #if CONFIG_DEBUG assert(x->gf_active_ptr == gfa + 2); assert(x->partition_info == pi + 2); assert(xd->mode_info_context == mic + 2); assert(x->src.y_buffer == yb + 32); assert(x->src.u_buffer == ub + 16); assert(x->src.v_buffer == vb + 16); #endif } // this is to account for the border x->gf_active_ptr += mb_cols - (mb_cols & 0x1); x->partition_info += xd->mode_info_stride + 1 - (mb_cols & 0x1); xd->mode_info_context += xd->mode_info_stride + 1 - (mb_cols & 0x1); xd->prev_mode_info_context += xd->mode_info_stride + 1 - (mb_cols & 0x1); #if CONFIG_DEBUG assert((xd->prev_mode_info_context - cpi->common.prev_mip) == (xd->mode_info_context - cpi->common.mip)); #endif } void init_encode_frame_mb_context(VP8_COMP *cpi) { MACROBLOCK *const x = & cpi->mb; VP8_COMMON *const cm = & cpi->common; MACROBLOCKD *const xd = & x->e_mbd; // GF active flags data structure x->gf_active_ptr = (signed char *)cpi->gf_active_flags; // Activity map pointer x->mb_activity_ptr = cpi->mb_activity_map; x->act_zbin_adj = 0; cpi->seg0_idx = 0; vpx_memset(cpi->ref_pred_count, 0, sizeof(cpi->ref_pred_count)); x->partition_info = x->pi; xd->mode_info_context = cm->mi; xd->mode_info_stride = cm->mode_info_stride; xd->prev_mode_info_context = cm->prev_mi; xd->frame_type = cm->frame_type; xd->frames_since_golden = cm->frames_since_golden; xd->frames_till_alt_ref_frame = cm->frames_till_alt_ref_frame; // reset intra mode contexts if (cm->frame_type == KEY_FRAME) vp8_init_mbmode_probs(cm); // Copy data over into macro block data structures. x->src = * cpi->Source; xd->pre = cm->yv12_fb[cm->lst_fb_idx]; xd->dst = cm->yv12_fb[cm->new_fb_idx]; // set up frame for intra coded blocks vp8_setup_intra_recon(&cm->yv12_fb[cm->new_fb_idx]); vp8_build_block_offsets(x); vp8_setup_block_dptrs(&x->e_mbd); vp8_setup_block_ptrs(x); xd->mode_info_context->mbmi.mode = DC_PRED; xd->mode_info_context->mbmi.uv_mode = DC_PRED; vp8_zero(cpi->count_mb_ref_frame_usage) vp8_zero(cpi->bmode_count) vp8_zero(cpi->ymode_count) vp8_zero(cpi->i8x8_mode_count) vp8_zero(cpi->y_uv_mode_count) vp8_zero(cpi->sub_mv_ref_count) vp8_zero(cpi->mbsplit_count) vp8_zero(cpi->common.fc.mv_ref_ct) vp8_zero(cpi->common.fc.mv_ref_ct_a) #if CONFIG_SUPERBLOCKS vp8_zero(cpi->sb_ymode_count) cpi->sb_count = 0; #endif // vp8_zero(cpi->uv_mode_count) vpx_memset(cm->above_context, 0, sizeof(ENTROPY_CONTEXT_PLANES) * cm->mb_cols); xd->fullpixel_mask = 0xffffffff; if (cm->full_pixel) xd->fullpixel_mask = 0xfffffff8; } static void encode_frame_internal(VP8_COMP *cpi) { int mb_row; MACROBLOCK *const x = & cpi->mb; VP8_COMMON *const cm = & cpi->common; MACROBLOCKD *const xd = & x->e_mbd; TOKENEXTRA *tp = cpi->tok; int totalrate; //printf("encode_frame_internal\n"); // Compute a modified set of reference frame probabilities to use when // prediction fails. These are based on the current general estimates for // this frame which may be updated with each iteration of the recode loop. compute_mod_refprobs(cm); #if CONFIG_NEW_MVREF // temp stats reset vp8_zero( cpi->best_ref_index_counts ); #endif // debug output #if DBG_PRNT_SEGMAP { FILE *statsfile; statsfile = fopen("segmap2.stt", "a"); fprintf(statsfile, "\n"); fclose(statsfile); } #endif totalrate = 0; // Functions setup for all frame types so we can use MC in AltRef vp8_setup_interp_filters(xd, cm->mcomp_filter_type, cm); // Reset frame count of inter 0,0 motion vector usage. cpi->inter_zz_count = 0; cpi->prediction_error = 0; cpi->intra_error = 0; cpi->skip_true_count[0] = cpi->skip_true_count[1] = cpi->skip_true_count[2] = 0; cpi->skip_false_count[0] = cpi->skip_false_count[1] = cpi->skip_false_count[2] = 0; #if CONFIG_PRED_FILTER if (cm->current_video_frame == 0) { // Initially assume that we'll signal the prediction filter // state at the frame level and that it is off. cpi->common.pred_filter_mode = 0; cpi->common.prob_pred_filter_off = 128; } cpi->pred_filter_on_count = 0; cpi->pred_filter_off_count = 0; #endif #if CONFIG_SWITCHABLE_INTERP vp8_zero(cpi->switchable_interp_count); #endif #if 0 // Experimental code cpi->frame_distortion = 0; cpi->last_mb_distortion = 0; #endif xd->mode_info_context = cm->mi; xd->prev_mode_info_context = cm->prev_mi; #if CONFIG_NEWMVENTROPY vp8_zero(cpi->NMVcount); #else vp8_zero(cpi->MVcount); vp8_zero(cpi->MVcount_hp); #endif vp8_zero(cpi->coef_counts); #if CONFIG_HYBRIDTRANSFORM vp8_zero(cpi->hybrid_coef_counts); #endif vp8_zero(cpi->coef_counts_8x8); #if CONFIG_HYBRIDTRANSFORM8X8 vp8_zero(cpi->hybrid_coef_counts_8x8); #endif vp8_zero(cpi->coef_counts_16x16); #if CONFIG_HYBRIDTRANSFORM16X16 vp8_zero(cpi->hybrid_coef_counts_16x16); #endif vp8cx_frame_init_quantizer(cpi); vp8_initialize_rd_consts(cpi, cm->base_qindex + cm->y1dc_delta_q); vp8cx_initialize_me_consts(cpi, cm->base_qindex); if (cpi->oxcf.tuning == VP8_TUNE_SSIM) { // Initialize encode frame context. init_encode_frame_mb_context(cpi); // Build a frame level activity map build_activity_map(cpi); } // re-initencode frame context. init_encode_frame_mb_context(cpi); vpx_memset(cpi->rd_comp_pred_diff, 0, sizeof(cpi->rd_comp_pred_diff)); vpx_memset(cpi->single_pred_count, 0, sizeof(cpi->single_pred_count)); vpx_memset(cpi->comp_pred_count, 0, sizeof(cpi->comp_pred_count)); #if CONFIG_TX_SELECT vpx_memset(cpi->txfm_count, 0, sizeof(cpi->txfm_count)); vpx_memset(cpi->txfm_count_8x8p, 0, sizeof(cpi->txfm_count_8x8p)); vpx_memset(cpi->rd_tx_select_diff, 0, sizeof(cpi->rd_tx_select_diff)); #endif { struct vpx_usec_timer emr_timer; vpx_usec_timer_start(&emr_timer); { // For each row of SBs in the frame for (mb_row = 0; mb_row < cm->mb_rows; mb_row += 2) { int offset = (cm->mb_cols + 1) & ~0x1; encode_sb_row(cpi, cm, mb_row, x, xd, &tp, &totalrate); // adjust to the next row of SBs x->src.y_buffer += 32 * x->src.y_stride - 16 * offset; x->src.u_buffer += 16 * x->src.uv_stride - 8 * offset; x->src.v_buffer += 16 * x->src.uv_stride - 8 * offset; } cpi->tok_count = tp - cpi->tok; } vpx_usec_timer_mark(&emr_timer); cpi->time_encode_mb_row += vpx_usec_timer_elapsed(&emr_timer); } // 256 rate units to the bit, // projected_frame_size in units of BYTES cpi->projected_frame_size = totalrate >> 8; #if 0 // Keep record of the total distortion this time around for future use cpi->last_frame_distortion = cpi->frame_distortion; #endif } static int check_dual_ref_flags(VP8_COMP *cpi) { MACROBLOCKD *xd = &cpi->mb.e_mbd; int ref_flags = cpi->ref_frame_flags; if (segfeature_active(xd, 1, SEG_LVL_REF_FRAME)) { if ((ref_flags & (VP8_LAST_FLAG | VP8_GOLD_FLAG)) == (VP8_LAST_FLAG | VP8_GOLD_FLAG) && check_segref(xd, 1, LAST_FRAME)) return 1; if ((ref_flags & (VP8_GOLD_FLAG | VP8_ALT_FLAG)) == (VP8_GOLD_FLAG | VP8_ALT_FLAG) && check_segref(xd, 1, GOLDEN_FRAME)) return 1; if ((ref_flags & (VP8_ALT_FLAG | VP8_LAST_FLAG)) == (VP8_ALT_FLAG | VP8_LAST_FLAG) && check_segref(xd, 1, ALTREF_FRAME)) return 1; return 0; } else { return (!!(ref_flags & VP8_GOLD_FLAG) + !!(ref_flags & VP8_LAST_FLAG) + !!(ref_flags & VP8_ALT_FLAG)) >= 2; } } #if CONFIG_TX_SELECT static void reset_skip_txfm_size(VP8_COMP *cpi, TX_SIZE txfm_max) { VP8_COMMON *cm = &cpi->common; int mb_row, mb_col, mis = cm->mode_info_stride; MODE_INFO *mi, *mi_ptr = cm->mi; MB_MODE_INFO *mbmi; MACROBLOCK *x = &cpi->mb; MACROBLOCKD *xd = &x->e_mbd; for (mb_row = 0; mb_row < cm->mb_rows; mb_row++, mi_ptr += mis) { mi = mi_ptr; for (mb_col = 0; mb_col < cm->mb_cols; mb_col++, mi++) { mbmi = &mi->mbmi; if (mbmi->txfm_size > txfm_max) { int segment_id = mbmi->segment_id; xd->mode_info_context = mi; assert((segfeature_active(xd, segment_id, SEG_LVL_EOB) && get_segdata(xd, segment_id, SEG_LVL_EOB) == 0) || (cm->mb_no_coeff_skip && mbmi->mb_skip_coeff)); mbmi->txfm_size = txfm_max; } } } } #endif void vp8_encode_frame(VP8_COMP *cpi) { if (cpi->sf.RD) { int i, frame_type, pred_type; TXFM_MODE txfm_type; /* * This code does a single RD pass over the whole frame assuming * either compound, single or hybrid prediction as per whatever has * worked best for that type of frame in the past. * It also predicts whether another coding mode would have worked * better that this coding mode. If that is the case, it remembers * that for subsequent frames. * It does the same analysis for transform size selection also. */ if (cpi->common.frame_type == KEY_FRAME) frame_type = 0; else if (cpi->is_src_frame_alt_ref && cpi->common.refresh_golden_frame) frame_type = 3; else if (cpi->common.refresh_golden_frame || cpi->common.refresh_alt_ref_frame) frame_type = 1; else frame_type = 2; /* prediction (compound, single or hybrid) mode selection */ if (frame_type == 3) pred_type = SINGLE_PREDICTION_ONLY; else if (cpi->rd_prediction_type_threshes[frame_type][1] > cpi->rd_prediction_type_threshes[frame_type][0] && cpi->rd_prediction_type_threshes[frame_type][1] > cpi->rd_prediction_type_threshes[frame_type][2] && check_dual_ref_flags(cpi) && cpi->static_mb_pct == 100) pred_type = COMP_PREDICTION_ONLY; else if (cpi->rd_prediction_type_threshes[frame_type][0] > cpi->rd_prediction_type_threshes[frame_type][2]) pred_type = SINGLE_PREDICTION_ONLY; else pred_type = HYBRID_PREDICTION; /* transform size (4x4, 8x8, 16x16 or select-per-mb) selection */ #if CONFIG_LOSSLESS if (cpi->oxcf.lossless) { txfm_type = ONLY_4X4; } else #endif #if CONFIG_TX_SELECT /* FIXME (rbultje) * this is a hack (no really), basically to work around the complete * nonsense coefficient cost prediction for keyframes. The probabilities * are reset to defaults, and thus we basically have no idea how expensive * a 4x4 vs. 8x8 will really be. The result is that any estimate at which * of the two is better is utterly bogus. * I'd like to eventually remove this hack, but in order to do that, we * need to move the frame reset code from the frame encode init to the * bitstream write code, or alternatively keep a backup of the previous * keyframe's probabilities as an estimate of what the current keyframe's * coefficient cost distributions may look like. */ if (frame_type == 0) { txfm_type = ALLOW_16X16; } else #if 0 /* FIXME (rbultje) * this code is disabled for a similar reason as the code above; the * problem is that each time we "revert" to 4x4 only (or even 8x8 only), * the coefficient probabilities for 16x16 (and 8x8) start lagging behind, * thus leading to them lagging further behind and not being chosen for * subsequent frames either. This is essentially a local minimum problem * that we can probably fix by estimating real costs more closely within * a frame, perhaps by re-calculating costs on-the-fly as frame encoding * progresses. */ if (cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] > cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] && cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] > cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] && cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] > cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8]) { txfm_type = TX_MODE_SELECT; } else if (cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] > cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8] && cpi->rd_tx_select_threshes[frame_type][ONLY_4X4] > cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] ) { txfm_type = ONLY_4X4; } else if (cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] >= cpi->rd_tx_select_threshes[frame_type][ALLOW_8X8]) { txfm_type = ALLOW_16X16; } else txfm_type = ALLOW_8X8; #else txfm_type = cpi->rd_tx_select_threshes[frame_type][ALLOW_16X16] >= cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] ? ALLOW_16X16 : TX_MODE_SELECT; #endif #else txfm_type = ALLOW_16X16; #endif // CONFIG_TX_SELECT cpi->common.txfm_mode = txfm_type; #if CONFIG_TX_SELECT if (txfm_type != TX_MODE_SELECT) { cpi->common.prob_tx[0] = 128; cpi->common.prob_tx[1] = 128; } #endif cpi->common.comp_pred_mode = pred_type; encode_frame_internal(cpi); for (i = 0; i < NB_PREDICTION_TYPES; ++i) { const int diff = cpi->rd_comp_pred_diff[i] / cpi->common.MBs; cpi->rd_prediction_type_threshes[frame_type][i] += diff; cpi->rd_prediction_type_threshes[frame_type][i] >>= 1; } #if CONFIG_TX_SELECT for (i = 0; i < NB_TXFM_MODES; ++i) { int64_t pd = cpi->rd_tx_select_diff[i]; int diff; if (i == TX_MODE_SELECT) pd -= RDCOST(cpi->mb.rdmult, cpi->mb.rddiv, 2048 * (TX_SIZE_MAX - 1), 0); diff = pd / cpi->common.MBs; cpi->rd_tx_select_threshes[frame_type][i] += diff; cpi->rd_tx_select_threshes[frame_type][i] /= 2; } #endif if (cpi->common.comp_pred_mode == HYBRID_PREDICTION) { int single_count_zero = 0; int comp_count_zero = 0; for (i = 0; i < COMP_PRED_CONTEXTS; i++) { single_count_zero += cpi->single_pred_count[i]; comp_count_zero += cpi->comp_pred_count[i]; } if (comp_count_zero == 0) { cpi->common.comp_pred_mode = SINGLE_PREDICTION_ONLY; } else if (single_count_zero == 0) { cpi->common.comp_pred_mode = COMP_PREDICTION_ONLY; } } #if CONFIG_TX_SELECT if (cpi->common.txfm_mode == TX_MODE_SELECT) { const int count4x4 = cpi->txfm_count[TX_4X4] + cpi->txfm_count_8x8p[TX_4X4]; const int count8x8 = cpi->txfm_count[TX_8X8]; const int count8x8_8x8p = cpi->txfm_count_8x8p[TX_8X8]; const int count16x16 = cpi->txfm_count[TX_16X16]; if (count4x4 == 0 && count16x16 == 0) { cpi->common.txfm_mode = ALLOW_8X8; reset_skip_txfm_size(cpi, TX_8X8); } else if (count8x8 == 0 && count16x16 == 0 && count8x8_8x8p == 0) { cpi->common.txfm_mode = ONLY_4X4; reset_skip_txfm_size(cpi, TX_4X4); } else if (count8x8 == 0 && count4x4 == 0) { cpi->common.txfm_mode = ALLOW_16X16; } } #endif } else { encode_frame_internal(cpi); } } void vp8_setup_block_ptrs(MACROBLOCK *x) { int r, c; int i; for (r = 0; r < 4; r++) { for (c = 0; c < 4; c++) { x->block[r * 4 + c].src_diff = x->src_diff + r * 4 * 16 + c * 4; } } for (r = 0; r < 2; r++) { for (c = 0; c < 2; c++) { x->block[16 + r * 2 + c].src_diff = x->src_diff + 256 + r * 4 * 8 + c * 4; } } for (r = 0; r < 2; r++) { for (c = 0; c < 2; c++) { x->block[20 + r * 2 + c].src_diff = x->src_diff + 320 + r * 4 * 8 + c * 4; } } x->block[24].src_diff = x->src_diff + 384; for (i = 0; i < 25; i++) { x->block[i].coeff = x->coeff + i * 16; } } void vp8_build_block_offsets(MACROBLOCK *x) { int block = 0; int br, bc; vp8_build_block_doffsets(&x->e_mbd); // y blocks x->thismb_ptr = &x->thismb[0]; for (br = 0; br < 4; br++) { for (bc = 0; bc < 4; bc++) { BLOCK *this_block = &x->block[block]; // this_block->base_src = &x->src.y_buffer; // this_block->src_stride = x->src.y_stride; // this_block->src = 4 * br * this_block->src_stride + 4 * bc; this_block->base_src = &x->thismb_ptr; this_block->src_stride = 16; this_block->src = 4 * br * 16 + 4 * bc; ++block; } } // u blocks for (br = 0; br < 2; br++) { for (bc = 0; bc < 2; bc++) { BLOCK *this_block = &x->block[block]; this_block->base_src = &x->src.u_buffer; this_block->src_stride = x->src.uv_stride; this_block->src = 4 * br * this_block->src_stride + 4 * bc; ++block; } } // v blocks for (br = 0; br < 2; br++) { for (bc = 0; bc < 2; bc++) { BLOCK *this_block = &x->block[block]; this_block->base_src = &x->src.v_buffer; this_block->src_stride = x->src.uv_stride; this_block->src = 4 * br * this_block->src_stride + 4 * bc; ++block; } } } static void sum_intra_stats(VP8_COMP *cpi, MACROBLOCK *x) { const MACROBLOCKD *xd = & x->e_mbd; const MB_PREDICTION_MODE m = xd->mode_info_context->mbmi.mode; const MB_PREDICTION_MODE uvm = xd->mode_info_context->mbmi.uv_mode; #ifdef MODE_STATS const int is_key = cpi->common.frame_type == KEY_FRAME; ++ (is_key ? uv_modes : inter_uv_modes)[uvm]; ++ uv_modes_y[m][uvm]; if (m == B_PRED) { unsigned int *const bct = is_key ? b_modes : inter_b_modes; int b = 0; do { ++ bct[xd->block[b].bmi.as_mode.first]; } while (++b < 16); } if (m == I8X8_PRED) { i8x8_modes[xd->block[0].bmi.as_mode.first]++; i8x8_modes[xd->block[2].bmi.as_mode.first]++; i8x8_modes[xd->block[8].bmi.as_mode.first]++; i8x8_modes[xd->block[10].bmi.as_mode.first]++; } #endif #if CONFIG_SUPERBLOCKS if (xd->mode_info_context->mbmi.encoded_as_sb) { ++cpi->sb_ymode_count[m]; } else #endif ++cpi->ymode_count[m]; if (m != I8X8_PRED) ++cpi->y_uv_mode_count[m][uvm]; else { cpi->i8x8_mode_count[xd->block[0].bmi.as_mode.first]++; cpi->i8x8_mode_count[xd->block[2].bmi.as_mode.first]++; cpi->i8x8_mode_count[xd->block[8].bmi.as_mode.first]++; cpi->i8x8_mode_count[xd->block[10].bmi.as_mode.first]++; } if (m == B_PRED) { int b = 0; do { ++ cpi->bmode_count[xd->block[b].bmi.as_mode.first]; } while (++b < 16); } } // Experimental stub function to create a per MB zbin adjustment based on // some previously calculated measure of MB activity. static void adjust_act_zbin(VP8_COMP *cpi, MACROBLOCK *x) { #if USE_ACT_INDEX x->act_zbin_adj = *(x->mb_activity_ptr); #else int64_t a; int64_t b; int64_t act = *(x->mb_activity_ptr); // Apply the masking to the RD multiplier. a = act + 4 * cpi->activity_avg; b = 4 * act + cpi->activity_avg; if (act > cpi->activity_avg) x->act_zbin_adj = (int)(((int64_t)b + (a >> 1)) / a) - 1; else x->act_zbin_adj = 1 - (int)(((int64_t)a + (b >> 1)) / b); #endif } #if CONFIG_SUPERBLOCKS static void update_sb_skip_coeff_state(VP8_COMP *cpi, MACROBLOCK *x, ENTROPY_CONTEXT_PLANES ta[4], ENTROPY_CONTEXT_PLANES tl[4], TOKENEXTRA *t[4], TOKENEXTRA **tp, int skip[4]) { TOKENEXTRA tokens[4][16 * 24]; int n_tokens[4], n; // if there were no skips, we don't need to do anything if (!skip[0] && !skip[1] && !skip[2] && !skip[3]) return; // if we don't do coeff skipping for this frame, we don't // need to do anything here if (!cpi->common.mb_no_coeff_skip) return; // if all 4 MBs skipped coeff coding, nothing to be done if (skip[0] && skip[1] && skip[2] && skip[3]) return; // so the situation now is that we want to skip coeffs // for some MBs, but not all, and we didn't code EOB // coefficients for them. However, the skip flag for this // SB will be 0 overall, so we need to insert EOBs in the // middle of the token tree. Do so here. n_tokens[0] = t[1] - t[0]; n_tokens[1] = t[2] - t[1]; n_tokens[2] = t[3] - t[2]; n_tokens[3] = *tp - t[3]; if (n_tokens[0]) memcpy(tokens[0], t[0], n_tokens[0] * sizeof(*t[0])); if (n_tokens[1]) memcpy(tokens[1], t[1], n_tokens[1] * sizeof(*t[0])); if (n_tokens[2]) memcpy(tokens[2], t[2], n_tokens[2] * sizeof(*t[0])); if (n_tokens[3]) memcpy(tokens[3], t[3], n_tokens[3] * sizeof(*t[0])); // reset pointer, stuff EOBs where necessary *tp = t[0]; for (n = 0; n < 4; n++) { if (skip[n]) { x->e_mbd.above_context = &ta[n]; x->e_mbd.left_context = &tl[n]; vp8_stuff_mb_8x8(cpi, &x->e_mbd, tp, 0); } else { if (n_tokens[n]) { memcpy(*tp, tokens[n], sizeof(*t[0]) * n_tokens[n]); } (*tp) += n_tokens[n]; } } } void vp8cx_encode_intra_super_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int mb_col) { const int output_enabled = 1; int n; MACROBLOCKD *xd = &x->e_mbd; VP8_COMMON *cm = &cpi->common; const uint8_t *src = x->src.y_buffer; uint8_t *dst = xd->dst.y_buffer; const uint8_t *usrc = x->src.u_buffer; uint8_t *udst = xd->dst.u_buffer; const uint8_t *vsrc = x->src.v_buffer; uint8_t *vdst = xd->dst.v_buffer; int src_y_stride = x->src.y_stride, dst_y_stride = xd->dst.y_stride; int src_uv_stride = x->src.uv_stride, dst_uv_stride = xd->dst.uv_stride; const VP8_ENCODER_RTCD *rtcd = IF_RTCD(&cpi->rtcd); TOKENEXTRA *tp[4]; int skip[4]; MODE_INFO *mi = x->e_mbd.mode_info_context; ENTROPY_CONTEXT_PLANES ta[4], tl[4]; if ((cpi->oxcf.tuning == VP8_TUNE_SSIM) && output_enabled) { adjust_act_zbin(cpi, x); vp8_update_zbin_extra(cpi, x); } RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_sby_s)(&x->e_mbd); RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_sbuv_s)(&x->e_mbd); assert(x->e_mbd.mode_info_context->mbmi.txfm_size == TX_8X8); for (n = 0; n < 4; n++) { int x_idx = n & 1, y_idx = n >> 1; xd->above_context = cm->above_context + mb_col + (n & 1); xd->left_context = cm->left_context + (n >> 1); vp8_subtract_mby_s_c(x->src_diff, src + x_idx * 16 + y_idx * 16 * src_y_stride, src_y_stride, dst + x_idx * 16 + y_idx * 16 * dst_y_stride, dst_y_stride); vp8_subtract_mbuv_s_c(x->src_diff, usrc + x_idx * 8 + y_idx * 8 * src_uv_stride, vsrc + x_idx * 8 + y_idx * 8 * src_uv_stride, src_uv_stride, udst + x_idx * 8 + y_idx * 8 * dst_uv_stride, vdst + x_idx * 8 + y_idx * 8 * dst_uv_stride, dst_uv_stride); vp8_transform_intra_mby_8x8(x); vp8_transform_mbuv_8x8(x); vp8_quantize_mby_8x8(x); vp8_quantize_mbuv_8x8(x); if (x->optimize) { vp8_optimize_mby_8x8(x, rtcd); vp8_optimize_mbuv_8x8(x, rtcd); } vp8_inverse_transform_mby_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd); vp8_inverse_transform_mbuv_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd); vp8_recon_mby_s_c(IF_RTCD(&rtcd->common->recon), &x->e_mbd, dst + x_idx * 16 + y_idx * 16 * dst_y_stride); vp8_recon_mbuv_s_c(IF_RTCD(&rtcd->common->recon), &x->e_mbd, udst + x_idx * 8 + y_idx * 8 * dst_uv_stride, vdst + x_idx * 8 + y_idx * 8 * dst_uv_stride); if (output_enabled) { memcpy(&ta[n], xd->above_context, sizeof(ta[n])); memcpy(&tl[n], xd->left_context, sizeof(tl[n])); tp[n] = *t; xd->mode_info_context = mi + x_idx + y_idx * cm->mode_info_stride; vp8_tokenize_mb(cpi, &x->e_mbd, t, 0); skip[n] = xd->mode_info_context->mbmi.mb_skip_coeff; } } if (output_enabled) { // Tokenize xd->mode_info_context = mi; sum_intra_stats(cpi, x); update_sb_skip_coeff_state(cpi, x, ta, tl, tp, t, skip); } } #endif void vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int output_enabled) { MB_MODE_INFO * mbmi = &x->e_mbd.mode_info_context->mbmi; if ((cpi->oxcf.tuning == VP8_TUNE_SSIM) && output_enabled) { adjust_act_zbin(cpi, x); vp8_update_zbin_extra(cpi, x); } if (mbmi->mode == I8X8_PRED) { vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x); } else if (mbmi->mode == B_PRED) vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x); else vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x); if (mbmi->mode != I8X8_PRED) { vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x); } if (output_enabled) { #if CONFIG_TX_SELECT int segment_id = mbmi->segment_id; #endif // Tokenize sum_intra_stats(cpi, x); vp8_tokenize_mb(cpi, &x->e_mbd, t, 0); #if CONFIG_TX_SELECT if (cpi->common.txfm_mode == TX_MODE_SELECT && !((cpi->common.mb_no_coeff_skip && mbmi->mb_skip_coeff) || (segfeature_active(&x->e_mbd, segment_id, SEG_LVL_EOB) && get_segdata(&x->e_mbd, segment_id, SEG_LVL_EOB) == 0))) { if (mbmi->mode != B_PRED && mbmi->mode != I8X8_PRED) { cpi->txfm_count[mbmi->txfm_size]++; } else if (mbmi->mode == I8X8_PRED) { cpi->txfm_count_8x8p[mbmi->txfm_size]++; } } else #endif if (cpi->common.txfm_mode >= ALLOW_16X16 && mbmi->mode <= TM_PRED) { mbmi->txfm_size = TX_16X16; } else if (cpi->common.txfm_mode >= ALLOW_8X8 && mbmi->mode != B_PRED) { mbmi->txfm_size = TX_8X8; } else { mbmi->txfm_size = TX_4X4; } } #if CONFIG_NEWBESTREFMV else vp8_tokenize_mb(cpi, &x->e_mbd, t, 1); #endif } #ifdef SPEEDSTATS extern int cnt_pm; #endif extern void vp8_fix_contexts(MACROBLOCKD *xd); void vp8cx_encode_inter_macroblock (VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset, int output_enabled) { VP8_COMMON *cm = &cpi->common; MACROBLOCKD *const xd = &x->e_mbd; MB_MODE_INFO * mbmi = &xd->mode_info_context->mbmi; unsigned char *segment_id = &mbmi->segment_id; int seg_ref_active; unsigned char ref_pred_flag; x->skip = 0; #if CONFIG_SUPERBLOCKS assert(!xd->mode_info_context->mbmi.encoded_as_sb); #endif #if CONFIG_SWITCHABLE_INTERP vp8_setup_interp_filters(xd, mbmi->interp_filter, cm); #endif if (cpi->oxcf.tuning == VP8_TUNE_SSIM) { // Adjust the zbin based on this MB rate. adjust_act_zbin(cpi, x); } { // Experimental code. Special case for gf and arf zeromv modes. // Increase zbin size to suppress noise cpi->zbin_mode_boost = 0; if (cpi->zbin_mode_boost_enabled) { if (mbmi->ref_frame != INTRA_FRAME) { if (mbmi->mode == ZEROMV) { if (mbmi->ref_frame != LAST_FRAME) cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST; else cpi->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST; } else if (mbmi->mode == SPLITMV) cpi->zbin_mode_boost = 0; else cpi->zbin_mode_boost = MV_ZBIN_BOOST; } } vp8_update_zbin_extra(cpi, x); } seg_ref_active = segfeature_active(xd, *segment_id, SEG_LVL_REF_FRAME); // SET VARIOUS PREDICTION FLAGS // Did the chosen reference frame match its predicted value. ref_pred_flag = ((mbmi->ref_frame == get_pred_ref(cm, xd))); set_pred_flag(xd, PRED_REF, ref_pred_flag); if (mbmi->ref_frame == INTRA_FRAME) { if (mbmi->mode == B_PRED) { vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x); } else if (mbmi->mode == I8X8_PRED) { vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x); } else { vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x); } if (output_enabled) sum_intra_stats(cpi, x); } else { int ref_fb_idx; if (mbmi->ref_frame == LAST_FRAME) ref_fb_idx = cpi->common.lst_fb_idx; else if (mbmi->ref_frame == GOLDEN_FRAME) ref_fb_idx = cpi->common.gld_fb_idx; else ref_fb_idx = cpi->common.alt_fb_idx; xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset; xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset; xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset; if (mbmi->second_ref_frame) { int second_ref_fb_idx; if (mbmi->second_ref_frame == LAST_FRAME) second_ref_fb_idx = cpi->common.lst_fb_idx; else if (mbmi->second_ref_frame == GOLDEN_FRAME) second_ref_fb_idx = cpi->common.gld_fb_idx; else second_ref_fb_idx = cpi->common.alt_fb_idx; xd->second_pre.y_buffer = cpi->common.yv12_fb[second_ref_fb_idx].y_buffer + recon_yoffset; xd->second_pre.u_buffer = cpi->common.yv12_fb[second_ref_fb_idx].u_buffer + recon_uvoffset; xd->second_pre.v_buffer = cpi->common.yv12_fb[second_ref_fb_idx].v_buffer + recon_uvoffset; } if (!x->skip) { vp8_encode_inter16x16(IF_RTCD(&cpi->rtcd), x); // Clear mb_skip_coeff if mb_no_coeff_skip is not set if (!cpi->common.mb_no_coeff_skip) mbmi->mb_skip_coeff = 0; } else { vp8_build_1st_inter16x16_predictors_mb(xd, xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, xd->dst.y_stride, xd->dst.uv_stride); } } if (!x->skip) { #ifdef ENC_DEBUG if (enc_debug) { int i; printf("Segment=%d [%d, %d]: %d %d:\n", mbmi->segment_id, mb_col_debug, mb_row_debug, xd->mb_to_left_edge, xd->mb_to_top_edge); for (i = 0; i < 400; i++) { printf("%3d ", xd->qcoeff[i]); if (i % 16 == 15) printf("\n"); } printf("\n"); printf("eobs = "); for (i = 0; i < 25; i++) printf("%d:%d ", i, xd->block[i].eob); printf("\n"); fflush(stdout); } #endif vp8_tokenize_mb(cpi, xd, t, !output_enabled); #ifdef ENC_DEBUG if (enc_debug) { printf("Tokenized\n"); fflush(stdout); } #endif } else { int mb_skip_context = cpi->common.mb_no_coeff_skip ? (x->e_mbd.mode_info_context - 1)->mbmi.mb_skip_coeff + (x->e_mbd.mode_info_context - cpi->common.mode_info_stride)->mbmi.mb_skip_coeff : 0; if (cpi->common.mb_no_coeff_skip) { mbmi->mb_skip_coeff = 1; if (output_enabled) cpi->skip_true_count[mb_skip_context]++; vp8_fix_contexts(xd); } else { vp8_stuff_mb_4x4(cpi, xd, t, !output_enabled); mbmi->mb_skip_coeff = 0; if (output_enabled) cpi->skip_false_count[mb_skip_context]++; } } if (output_enabled) { #if CONFIG_TX_SELECT int segment_id = mbmi->segment_id; if (cpi->common.txfm_mode == TX_MODE_SELECT && !((cpi->common.mb_no_coeff_skip && mbmi->mb_skip_coeff) || (segfeature_active(&x->e_mbd, segment_id, SEG_LVL_EOB) && get_segdata(&x->e_mbd, segment_id, SEG_LVL_EOB) == 0))) { if (mbmi->mode != B_PRED && mbmi->mode != I8X8_PRED && mbmi->mode != SPLITMV) { cpi->txfm_count[mbmi->txfm_size]++; } else if (mbmi->mode == I8X8_PRED) { cpi->txfm_count_8x8p[mbmi->txfm_size]++; } } else #endif if (mbmi->mode != B_PRED && mbmi->mode != I8X8_PRED && mbmi->mode != SPLITMV && cpi->common.txfm_mode >= ALLOW_16X16) { mbmi->txfm_size = TX_16X16; } else if (mbmi->mode != B_PRED && mbmi->mode != SPLITMV && cpi->common.txfm_mode >= ALLOW_8X8) { mbmi->txfm_size = TX_8X8; } else { mbmi->txfm_size = TX_4X4; } } } #if CONFIG_SUPERBLOCKS void vp8cx_encode_inter_superblock(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int recon_yoffset, int recon_uvoffset, int mb_col, int mb_row) { const int output_enabled = 1; VP8_COMMON *cm = &cpi->common; MACROBLOCKD *xd = &x->e_mbd; const uint8_t *src = x->src.y_buffer; uint8_t *dst = xd->dst.y_buffer; const uint8_t *usrc = x->src.u_buffer; uint8_t *udst = xd->dst.u_buffer; const uint8_t *vsrc = x->src.v_buffer; uint8_t *vdst = xd->dst.v_buffer; int src_y_stride = x->src.y_stride, dst_y_stride = xd->dst.y_stride; int src_uv_stride = x->src.uv_stride, dst_uv_stride = xd->dst.uv_stride; const VP8_ENCODER_RTCD *rtcd = IF_RTCD(&cpi->rtcd); unsigned int segment_id = xd->mode_info_context->mbmi.segment_id; int seg_ref_active; unsigned char ref_pred_flag; int n; TOKENEXTRA *tp[4]; int skip[4]; MODE_INFO *mi = x->e_mbd.mode_info_context; ENTROPY_CONTEXT_PLANES ta[4], tl[4]; x->skip = 0; if (cpi->oxcf.tuning == VP8_TUNE_SSIM) { // Adjust the zbin based on this MB rate. adjust_act_zbin(cpi, x); } { // Experimental code. Special case for gf and arf zeromv modes. // Increase zbin size to suppress noise cpi->zbin_mode_boost = 0; if (cpi->zbin_mode_boost_enabled) { if (xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME) { if (xd->mode_info_context->mbmi.mode == ZEROMV) { if (xd->mode_info_context->mbmi.ref_frame != LAST_FRAME) cpi->zbin_mode_boost = GF_ZEROMV_ZBIN_BOOST; else cpi->zbin_mode_boost = LF_ZEROMV_ZBIN_BOOST; } else if (xd->mode_info_context->mbmi.mode == SPLITMV) cpi->zbin_mode_boost = 0; else cpi->zbin_mode_boost = MV_ZBIN_BOOST; } } vp8_update_zbin_extra(cpi, x); } seg_ref_active = segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME); // SET VARIOUS PREDICTION FLAGS // Did the chosen reference frame match its predicted value. ref_pred_flag = ((xd->mode_info_context->mbmi.ref_frame == get_pred_ref(cm, xd))); set_pred_flag(xd, PRED_REF, ref_pred_flag); if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_sby_s)(&x->e_mbd); RECON_INVOKE(&rtcd->common->recon, build_intra_predictors_sbuv_s)(&x->e_mbd); } else { int ref_fb_idx; if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME) ref_fb_idx = cpi->common.lst_fb_idx; else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME) ref_fb_idx = cpi->common.gld_fb_idx; else ref_fb_idx = cpi->common.alt_fb_idx; xd->pre.y_buffer = cpi->common.yv12_fb[ref_fb_idx].y_buffer + recon_yoffset; xd->pre.u_buffer = cpi->common.yv12_fb[ref_fb_idx].u_buffer + recon_uvoffset; xd->pre.v_buffer = cpi->common.yv12_fb[ref_fb_idx].v_buffer + recon_uvoffset; if (xd->mode_info_context->mbmi.second_ref_frame) { int second_ref_fb_idx; if (xd->mode_info_context->mbmi.second_ref_frame == LAST_FRAME) second_ref_fb_idx = cpi->common.lst_fb_idx; else if (xd->mode_info_context->mbmi.second_ref_frame == GOLDEN_FRAME) second_ref_fb_idx = cpi->common.gld_fb_idx; else second_ref_fb_idx = cpi->common.alt_fb_idx; xd->second_pre.y_buffer = cpi->common.yv12_fb[second_ref_fb_idx].y_buffer + recon_yoffset; xd->second_pre.u_buffer = cpi->common.yv12_fb[second_ref_fb_idx].u_buffer + recon_uvoffset; xd->second_pre.v_buffer = cpi->common.yv12_fb[second_ref_fb_idx].v_buffer + recon_uvoffset; } vp8_build_inter32x32_predictors_sb(xd, xd->dst.y_buffer, xd->dst.u_buffer, xd->dst.v_buffer, xd->dst.y_stride, xd->dst.uv_stride); } assert(x->e_mbd.mode_info_context->mbmi.txfm_size == TX_8X8); for (n = 0; n < 4; n++) { int x_idx = n & 1, y_idx = n >> 1; vp8_subtract_mby_s_c(x->src_diff, src + x_idx * 16 + y_idx * 16 * src_y_stride, src_y_stride, dst + x_idx * 16 + y_idx * 16 * dst_y_stride, dst_y_stride); vp8_subtract_mbuv_s_c(x->src_diff, usrc + x_idx * 8 + y_idx * 8 * src_uv_stride, vsrc + x_idx * 8 + y_idx * 8 * src_uv_stride, src_uv_stride, udst + x_idx * 8 + y_idx * 8 * dst_uv_stride, vdst + x_idx * 8 + y_idx * 8 * dst_uv_stride, dst_uv_stride); if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { vp8_transform_intra_mby_8x8(x); } else { vp8_transform_mby_8x8(x); } vp8_transform_mbuv_8x8(x); vp8_quantize_mby_8x8(x); vp8_quantize_mbuv_8x8(x); if (x->optimize) { vp8_optimize_mby_8x8(x, rtcd); vp8_optimize_mbuv_8x8(x, rtcd); } vp8_inverse_transform_mby_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd); vp8_inverse_transform_mbuv_8x8(IF_RTCD(&rtcd->common->idct), &x->e_mbd); vp8_recon_mby_s_c(IF_RTCD(&rtcd->common->recon), &x->e_mbd, dst + x_idx * 16 + y_idx * 16 * dst_y_stride); vp8_recon_mbuv_s_c(IF_RTCD(&rtcd->common->recon), &x->e_mbd, udst + x_idx * 8 + y_idx * 8 * dst_uv_stride, vdst + x_idx * 8 + y_idx * 8 * dst_uv_stride); if (!x->skip) { if (output_enabled) { xd->left_context = cm->left_context + (n >> 1); xd->above_context = cm->above_context + mb_col + (n >> 1); memcpy(&ta[n], xd->above_context, sizeof(ta[n])); memcpy(&tl[n], xd->left_context, sizeof(tl[n])); tp[n] = *t; xd->mode_info_context = mi + x_idx + y_idx * cm->mode_info_stride; vp8_tokenize_mb(cpi, &x->e_mbd, t, 0); skip[n] = xd->mode_info_context->mbmi.mb_skip_coeff; } } else { int mb_skip_context = cpi->common.mb_no_coeff_skip ? (x->e_mbd.mode_info_context - 1)->mbmi.mb_skip_coeff + (x->e_mbd.mode_info_context - cpi->common.mode_info_stride)->mbmi.mb_skip_coeff : 0; if (cpi->common.mb_no_coeff_skip) { skip[n] = xd->mode_info_context->mbmi.mb_skip_coeff = 1; xd->left_context = cm->left_context + (n >> 1); xd->above_context = cm->above_context + mb_col + (n >> 1); memcpy(&ta[n], xd->above_context, sizeof(ta[n])); memcpy(&tl[n], xd->left_context, sizeof(tl[n])); tp[n] = *t; cpi->skip_true_count[mb_skip_context]++; vp8_fix_contexts(xd); } else { vp8_stuff_mb_4x4(cpi, xd, t, 0); xd->mode_info_context->mbmi.mb_skip_coeff = 0; cpi->skip_false_count[mb_skip_context]++; } } } xd->mode_info_context = mi; update_sb_skip_coeff_state(cpi, x, ta, tl, tp, t, skip); } #endif