/* * 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 "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 1 #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(VP8_COMP *cpi, MACROBLOCKD *x, TOKENEXTRA **t) ; 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); extern int vp8cx_pick_mode_inter_macroblock(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int recon_uvoffset); 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_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int output_enabled); static void adjust_act_zbin( VP8_COMP *cpi, MACROBLOCK *x ); #ifdef MODE_STATS unsigned int inter_y_modes[MB_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; unsigned int inter_uv_modes[VP8_UV_MODES] = {0, 0, 0, 0}; unsigned int inter_b_modes[B_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; unsigned int y_modes[VP8_YMODES] = {0, 0, 0, 0, 0, 0}; unsigned int i8x8_modes[VP8_I8X8_MODES]={0 }; unsigned int uv_modes[VP8_UV_MODES] = {0, 0, 0, 0}; unsigned int uv_modes_y[VP8_YMODES][VP8_UV_MODES]= { {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0} }; unsigned int b_modes[B_MODE_COUNT] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; #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 RECON_INVOKE(&xd->rtcd->recon, copy16x16)(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; 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 (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)); xd->mode_info_context->mbmi.mv.as_int = x->partition_info->bmi[15].mv.as_int; } 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); // } } 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); cpi->prediction_error += ctx->distortion; cpi->intra_error += ctx->intra_error; } } 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 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, cpi->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; // 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 vpx_memcpy (&cm->left_context, &cpi->left_context[i>>1], sizeof(ENTROPY_CONTEXT_PLANES)); // 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 - 16)); x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16)); x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16); x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16); 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 RECON_INVOKE(&xd->rtcd->recon, copy16x16)(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 (cpi->segmentation_map[map_index] <= 3) xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index]; else 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; /* force 4x4 transform for mode selection */ xd->mode_info_context->mbmi.txfm_size = TX_4X4; // TODO IS this right?? 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) { *totalrate += vp8_rd_pick_intra_mode(cpi, x); // Save the coding context vpx_memcpy (&x->mb_context[i].mic, xd->mode_info_context, sizeof(MODE_INFO)); // 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 } else { *totalrate += vp8cx_pick_mode_inter_macroblock(cpi, x, recon_yoffset, recon_uvoffset); // Dummy encode, do not do the tokenization vp8cx_encode_inter_macroblock(cpi, x, tp, recon_yoffset, recon_uvoffset, 0); } // Keep a copy of the updated left context vpx_memcpy (&cpi->left_context[i>>1], &cm->left_context, sizeof(ENTROPY_CONTEXT_PLANES)); // 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 (cpi->left_context, left_context, sizeof(left_context)); vpx_memcpy (initial_above_context_ptr, above_context, sizeof(above_context)); } static void encode_sb ( VP8_COMP *cpi, VP8_COMMON *cm, int mbrow, int mbcol, MACROBLOCK *x, MACROBLOCKD *xd, TOKENEXTRA **tp ) { int i, j; 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; 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 (x->encode_as_sb) update_state (cpi, x, &x->sb_context[i]); else #endif update_state (cpi, x, &x->mb_context[i]); // Copy in the appropriate left context vpx_memcpy (&cm->left_context, &cpi->left_context[i>>1], sizeof(ENTROPY_CONTEXT_PLANES)); 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; // 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; // 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 - 16)); x->mv_col_min = -((mb_col * 16) + (VP8BORDERINPIXELS - 16)); x->mv_row_max = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 16); x->mv_col_max = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 16); #if CONFIG_SUPERBLOCKS // Set up limit values for MV components to prevent them from // extending beyond the UMV borders assuming 32x32 block size x->mv_row_min_sb = -((mb_row * 16) + (VP8BORDERINPIXELS - 16)); x->mv_row_max_sb = ((cm->mb_rows - 1 - mb_row) * 16) + (VP8BORDERINPIXELS - 32); x->mv_col_min_sb = -((mb_col * 16) + (VP8BORDERINPIXELS - 16)); x->mv_col_max_sb = ((cm->mb_cols - 1 - mb_col) * 16) + (VP8BORDERINPIXELS - 32); #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 RECON_INVOKE(&xd->rtcd->recon, copy16x16)(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) { // Code to set segment id in xd->mbmi.segment_id if (cpi->segmentation_map[map_index] <= 3) xd->mode_info_context->mbmi.segment_id = cpi->segmentation_map[map_index]; else 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; if (cm->frame_type == KEY_FRAME) { vp8cx_encode_intra_macro_block(cpi, x, tp, 1); //Note the encoder may have changed the segment_id #ifdef MODE_STATS y_modes[xd->mode_info_context->mbmi.mode] ++; #endif } else { 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[xd->mode_info_context->mbmi.mode] ++; if (xd->mode_info_context->mbmi.mode == SPLITMV) { int b; for (b = 0; b < x->partition_info->count; b++) { inter_b_modes[x->partition_info->bmi[b].mode] ++; } } #endif // Count of last ref frame 0,0 usage if ((xd->mode_info_context->mbmi.mode == ZEROMV) && (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)) cpi->inter_zz_count ++; } // TODO Partitioning is broken! cpi->tplist[mb_row].stop = *tp; // Copy back updated left context vpx_memcpy (&cpi->left_context[i>>1], &cm->left_context, sizeof(ENTROPY_CONTEXT_PLANES)); // 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 (cpi->left_context, 0, sizeof(cpi->left_context)); vpx_memset (&cm->left_context, 0, sizeof(ENTROPY_CONTEXT_PLANES)); // Code each SB in the row for (mb_col=0; mb_colmode_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 // Pick modes assuming the SB is coded as 4 independent MBs pick_mb_modes (cpi, cm, mb_row, mb_col, x, xd, tp, &mb_rate); 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 // Pick a mode assuming that it applies all 4 of the MBs in the SB pick_sb_modes(cpi, cm, mb_row, mb_col, x, xd, &sb_rate); // Decide whether to encode as a SB or 4xMBs if(sb_rate < mb_rate) { x->encode_as_sb = 1; *totalrate += sb_rate; } else #endif { x->encode_as_sb = 0; *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; 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; xd->left_context = &cm->left_context; vp8_zero(cpi->count_mb_ref_frame_usage) vp8_zero(cpi->ymode_count) vp8_zero(cpi->uv_mode_count) x->mvc = cm->fc.mvc; #if CONFIG_HIGH_PRECISION_MV x->mvc_hp = cm->fc.mvc_hp; #endif 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; // 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 ); // 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 if (cm->mcomp_filter_type == SIXTAP) { xd->subpixel_predict = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap4x4); xd->subpixel_predict8x4 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap8x4); xd->subpixel_predict8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap8x8); xd->subpixel_predict16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap16x16); xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap_avg8x8); xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, sixtap_avg16x16); } #if CONFIG_ENHANCED_INTERP else if (cm->mcomp_filter_type == EIGHTTAP) { xd->subpixel_predict = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap4x4); xd->subpixel_predict8x4 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap8x4); xd->subpixel_predict8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap8x8); xd->subpixel_predict16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap16x16); xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap_avg8x8); xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap_avg16x16); } else if (cm->mcomp_filter_type == EIGHTTAP_SHARP) { xd->subpixel_predict = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap4x4_sharp); xd->subpixel_predict8x4 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap8x4_sharp); xd->subpixel_predict8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap8x8_sharp); xd->subpixel_predict16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap16x16_sharp); xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap_avg8x8_sharp); xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, eighttap_avg16x16_sharp); } #endif else { xd->subpixel_predict = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear4x4); xd->subpixel_predict8x4 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear8x4); xd->subpixel_predict8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear8x8); xd->subpixel_predict16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear16x16); xd->subpixel_predict_avg8x8 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear_avg8x8); xd->subpixel_predict_avg16x16 = SUBPIX_INVOKE( &cpi->common.rtcd.subpix, bilinear_avg16x16); } // Reset frame count of inter 0,0 motion vector usage. cpi->inter_zz_count = 0; cpi->prediction_error = 0; cpi->intra_error = 0; #if CONFIG_NEWENTROPY 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; #else cpi->skip_true_count = 0; cpi->skip_false_count = 0; #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; vp8_zero(cpi->MVcount); #if CONFIG_HIGH_PRECISION_MV vp8_zero(cpi->MVcount_hp); #endif vp8_zero(cpi->coef_counts); 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); cpi->rd_single_diff = cpi->rd_comp_diff = cpi->rd_hybrid_diff = 0; vpx_memset(cpi->single_pred_count, 0, sizeof(cpi->single_pred_count)); vpx_memset(cpi->comp_pred_count, 0, sizeof(cpi->comp_pred_count)); { 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; } } void vp8_encode_frame(VP8_COMP *cpi) { if (cpi->sf.RD) { int frame_type, pred_type; int redo = 0; int single_diff, comp_diff, hybrid_diff; /* * 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. If the difference is above a certain * threshold, it will actually re-encode the current frame using * that different coding mode. */ 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; 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)) pred_type = COMP_PREDICTION_ONLY; else if (cpi->rd_prediction_type_threshes[frame_type][0] > cpi->rd_prediction_type_threshes[frame_type][1] && 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; cpi->common.comp_pred_mode = pred_type; encode_frame_internal(cpi); single_diff = cpi->rd_single_diff / cpi->common.MBs; cpi->rd_prediction_type_threshes[frame_type][0] += single_diff; cpi->rd_prediction_type_threshes[frame_type][0] >>= 1; comp_diff = cpi->rd_comp_diff / cpi->common.MBs; cpi->rd_prediction_type_threshes[frame_type][1] += comp_diff; cpi->rd_prediction_type_threshes[frame_type][1] >>= 1; hybrid_diff = cpi->rd_hybrid_diff / cpi->common.MBs; cpi->rd_prediction_type_threshes[frame_type][2] += hybrid_diff; cpi->rd_prediction_type_threshes[frame_type][2] >>= 1; if (cpi->common.comp_pred_mode == HYBRID_PREDICTION) { int single_count_zero = 0; int comp_count_zero = 0; int i; 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; } } } 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 ++cpi->ymode_count[m]; ++cpi->uv_mode_count[uvm]; } // 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 } void vp8cx_encode_intra_macro_block(VP8_COMP *cpi, MACROBLOCK *x, TOKENEXTRA **t, int output_enabled) { if((cpi->oxcf.tuning == VP8_TUNE_SSIM) && output_enabled) { adjust_act_zbin( cpi, x ); vp8_update_zbin_extra(cpi, x); } /* test code: set transform size based on mode selection */ if(cpi->common.txfm_mode == ALLOW_8X8 && ( x->e_mbd.mode_info_context->mbmi.mode == DC_PRED || x->e_mbd.mode_info_context->mbmi.mode == TM_PRED)) { x->e_mbd.mode_info_context->mbmi.txfm_size = TX_8X8; cpi->t8x8_count++; } else { x->e_mbd.mode_info_context->mbmi.txfm_size = TX_4X4; cpi->t4x4_count ++; } if(x->e_mbd.mode_info_context->mbmi.mode == I8X8_PRED) { vp8_encode_intra8x8mby(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra8x8mbuv(IF_RTCD(&cpi->rtcd), x); } else if (x->e_mbd.mode_info_context->mbmi.mode == B_PRED) vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x); else vp8_encode_intra16x16mby(IF_RTCD(&cpi->rtcd), x); if(x->e_mbd.mode_info_context->mbmi.mode != I8X8_PRED) vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x); if (output_enabled) { // Tokenize sum_intra_stats(cpi, x); vp8_tokenize_mb(cpi, &x->e_mbd, t); } } #ifdef SPEEDSTATS extern int cnt_pm; #endif extern void vp8_fix_contexts(MACROBLOCKD *x); 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; int intra_error = 0; int rate; int distortion; unsigned char *segment_id = &xd->mode_info_context->mbmi.segment_id; int seg_ref_active; unsigned char ref_pred_flag; 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 ); /* test code: set transform size based on mode selection */ if( cpi->common.txfm_mode == ALLOW_8X8 && x->e_mbd.mode_info_context->mbmi.mode != I8X8_PRED && x->e_mbd.mode_info_context->mbmi.mode != B_PRED && x->e_mbd.mode_info_context->mbmi.mode != SPLITMV) { x->e_mbd.mode_info_context->mbmi.txfm_size = TX_8X8; cpi->t8x8_count ++; } else { x->e_mbd.mode_info_context->mbmi.txfm_size = TX_4X4; cpi->t4x4_count++; } // 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. 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 ) ) { // TODO this may not be a good idea as it makes sample size small and means // the predictor functions cannot use data about most likely value only most // likely unpredicted value. //#if CONFIG_COMPRED // // Only update count for incorrectly predicted cases // if ( !ref_pred_flag ) //#endif { cpi->count_mb_ref_frame_usage [xd->mode_info_context->mbmi.ref_frame]++; } } if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) { if (xd->mode_info_context->mbmi.mode == B_PRED) { vp8_encode_intra16x16mbuv(IF_RTCD(&cpi->rtcd), x); vp8_encode_intra4x4mby(IF_RTCD(&cpi->rtcd), x); } else if(xd->mode_info_context->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 (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; } 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) xd->mode_info_context->mbmi.mb_skip_coeff = 0; } else { vp8_build_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", x->e_mbd.mode_info_context->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 if (output_enabled) vp8_tokenize_mb(cpi, xd, t); #ifdef ENC_DEBUG if (enc_debug) { printf("Tokenized\n"); fflush(stdout); } #endif } else { #if CONFIG_NEWENTROPY 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; #endif if (cpi->common.mb_no_coeff_skip) { xd->mode_info_context->mbmi.mb_skip_coeff = 1; #if CONFIG_NEWENTROPY cpi->skip_true_count[mb_skip_context] ++; #else cpi->skip_true_count ++; #endif vp8_fix_contexts(xd); } else { vp8_stuff_mb(cpi, xd, t); xd->mode_info_context->mbmi.mb_skip_coeff = 0; #if CONFIG_NEWENTROPY cpi->skip_false_count[mb_skip_context] ++; #else cpi->skip_false_count ++; #endif } } }