6910f178f1
Move set_partition_seg_context_ to common file. Use consistent context setup conditions for partition probability model update at encoder and decoder. Change-Id: I24b7ed3b1c48e3d2568191a46b70136b99b67b1a
1778 lines
60 KiB
C
1778 lines
60 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "./vpx_config.h"
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#include "vp9/encoder/vp9_encodeframe.h"
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#include "vp9/encoder/vp9_encodemb.h"
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#include "vp9/encoder/vp9_encodemv.h"
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#include "vp9/common/vp9_common.h"
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#include "vp9/encoder/vp9_onyx_int.h"
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#include "vp9/common/vp9_extend.h"
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#include "vp9/common/vp9_entropy.h"
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#include "vp9/common/vp9_entropymode.h"
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#include "vp9/common/vp9_quant_common.h"
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#include "vp9/encoder/vp9_segmentation.h"
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#include "vp9/encoder/vp9_encodeintra.h"
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#include "vp9/common/vp9_reconinter.h"
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#include "vp9/common/vp9_invtrans.h"
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#include "vp9/encoder/vp9_rdopt.h"
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#include "vp9/common/vp9_findnearmv.h"
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#include "vp9/common/vp9_reconintra.h"
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#include "vp9/common/vp9_seg_common.h"
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#include "vp9/common/vp9_tile_common.h"
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#include "vp9/encoder/vp9_tokenize.h"
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#include "./vp9_rtcd.h"
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#include <stdio.h>
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#include <math.h>
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#include <limits.h>
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#include "vpx_ports/vpx_timer.h"
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#include "vp9/common/vp9_pred_common.h"
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#include "vp9/common/vp9_mvref_common.h"
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#define DBG_PRNT_SEGMAP 0
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// #define ENC_DEBUG
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#ifdef ENC_DEBUG
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int enc_debug = 0;
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#endif
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void vp9_select_interp_filter_type(VP9_COMP *cpi);
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static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
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int output_enabled, int mi_row, int mi_col,
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BLOCK_SIZE_TYPE bsize);
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static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
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#ifdef MODE_STATS
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unsigned int inter_y_modes[MB_MODE_COUNT];
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unsigned int inter_uv_modes[VP9_UV_MODES];
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unsigned int inter_b_modes[B_MODE_COUNT];
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unsigned int y_modes[VP9_YMODES];
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unsigned int i8x8_modes[VP9_I8X8_MODES];
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unsigned int uv_modes[VP9_UV_MODES];
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unsigned int uv_modes_y[VP9_YMODES][VP9_UV_MODES];
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unsigned int b_modes[B_MODE_COUNT];
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#endif
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/* activity_avg must be positive, or flat regions could get a zero weight
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* (infinite lambda), which confounds analysis.
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* This also avoids the need for divide by zero checks in
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* vp9_activity_masking().
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*/
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#define VP9_ACTIVITY_AVG_MIN (64)
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/* This is used as a reference when computing the source variance for the
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* purposes of activity masking.
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* Eventually this should be replaced by custom no-reference routines,
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* which will be faster.
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*/
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static const uint8_t VP9_VAR_OFFS[16] = {
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128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128
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};
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// Original activity measure from Tim T's code.
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static unsigned int tt_activity_measure(VP9_COMP *cpi, MACROBLOCK *x) {
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unsigned int act;
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unsigned int sse;
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/* TODO: This could also be done over smaller areas (8x8), but that would
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* require extensive changes elsewhere, as lambda is assumed to be fixed
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* over an entire MB in most of the code.
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* Another option is to compute four 8x8 variances, and pick a single
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* lambda using a non-linear combination (e.g., the smallest, or second
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* smallest, etc.).
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*/
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act = vp9_variance16x16(x->plane[0].src.buf, x->plane[0].src.stride,
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VP9_VAR_OFFS, 0, &sse);
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act <<= 4;
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/* If the region is flat, lower the activity some more. */
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if (act < 8 << 12)
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act = act < 5 << 12 ? act : 5 << 12;
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return act;
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}
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// Stub for alternative experimental activity measures.
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static unsigned int alt_activity_measure(VP9_COMP *cpi,
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MACROBLOCK *x, int use_dc_pred) {
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return vp9_encode_intra(cpi, x, use_dc_pred);
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}
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// Measure the activity of the current macroblock
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// What we measure here is TBD so abstracted to this function
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#define ALT_ACT_MEASURE 1
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static unsigned int mb_activity_measure(VP9_COMP *cpi, MACROBLOCK *x,
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int mb_row, int mb_col) {
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unsigned int mb_activity;
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if (ALT_ACT_MEASURE) {
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int use_dc_pred = (mb_col || mb_row) && (!mb_col || !mb_row);
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// Or use and alternative.
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mb_activity = alt_activity_measure(cpi, x, use_dc_pred);
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} else {
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// Original activity measure from Tim T's code.
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mb_activity = tt_activity_measure(cpi, x);
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}
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if (mb_activity < VP9_ACTIVITY_AVG_MIN)
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mb_activity = VP9_ACTIVITY_AVG_MIN;
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return mb_activity;
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}
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// Calculate an "average" mb activity value for the frame
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#define ACT_MEDIAN 0
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static void calc_av_activity(VP9_COMP *cpi, int64_t activity_sum) {
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#if ACT_MEDIAN
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// Find median: Simple n^2 algorithm for experimentation
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{
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unsigned int median;
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unsigned int i, j;
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unsigned int *sortlist;
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unsigned int tmp;
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// Create a list to sort to
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CHECK_MEM_ERROR(sortlist,
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vpx_calloc(sizeof(unsigned int),
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cpi->common.MBs));
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// Copy map to sort list
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vpx_memcpy(sortlist, cpi->mb_activity_map,
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sizeof(unsigned int) * cpi->common.MBs);
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// Ripple each value down to its correct position
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for (i = 1; i < cpi->common.MBs; i ++) {
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for (j = i; j > 0; j --) {
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if (sortlist[j] < sortlist[j - 1]) {
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// Swap values
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tmp = sortlist[j - 1];
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sortlist[j - 1] = sortlist[j];
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sortlist[j] = tmp;
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} else
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break;
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}
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}
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// Even number MBs so estimate median as mean of two either side.
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median = (1 + sortlist[cpi->common.MBs >> 1] +
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sortlist[(cpi->common.MBs >> 1) + 1]) >> 1;
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cpi->activity_avg = median;
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vpx_free(sortlist);
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}
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#else
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// Simple mean for now
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cpi->activity_avg = (unsigned int)(activity_sum / cpi->common.MBs);
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#endif
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if (cpi->activity_avg < VP9_ACTIVITY_AVG_MIN)
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cpi->activity_avg = VP9_ACTIVITY_AVG_MIN;
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// Experimental code: return fixed value normalized for several clips
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if (ALT_ACT_MEASURE)
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cpi->activity_avg = 100000;
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}
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#define USE_ACT_INDEX 0
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#define OUTPUT_NORM_ACT_STATS 0
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#if USE_ACT_INDEX
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// Calculate an activity index for each mb
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static void calc_activity_index(VP9_COMP *cpi, MACROBLOCK *x) {
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VP9_COMMON *const cm = &cpi->common;
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int mb_row, mb_col;
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int64_t act;
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int64_t a;
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int64_t b;
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#if OUTPUT_NORM_ACT_STATS
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FILE *f = fopen("norm_act.stt", "a");
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fprintf(f, "\n%12d\n", cpi->activity_avg);
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#endif
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// Reset pointers to start of activity map
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x->mb_activity_ptr = cpi->mb_activity_map;
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// Calculate normalized mb activity number.
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for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
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// for each macroblock col in image
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for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
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// Read activity from the map
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act = *(x->mb_activity_ptr);
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// Calculate a normalized activity number
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a = act + 4 * cpi->activity_avg;
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b = 4 * act + cpi->activity_avg;
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if (b >= a)
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*(x->activity_ptr) = (int)((b + (a >> 1)) / a) - 1;
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else
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*(x->activity_ptr) = 1 - (int)((a + (b >> 1)) / b);
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#if OUTPUT_NORM_ACT_STATS
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fprintf(f, " %6d", *(x->mb_activity_ptr));
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#endif
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// Increment activity map pointers
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x->mb_activity_ptr++;
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}
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#if OUTPUT_NORM_ACT_STATS
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fprintf(f, "\n");
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#endif
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}
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#if OUTPUT_NORM_ACT_STATS
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fclose(f);
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#endif
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}
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#endif
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// Loop through all MBs. Note activity of each, average activity and
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// calculate a normalized activity for each
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static void build_activity_map(VP9_COMP *cpi) {
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MACROBLOCK *const x = &cpi->mb;
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MACROBLOCKD *xd = &x->e_mbd;
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VP9_COMMON *const cm = &cpi->common;
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#if ALT_ACT_MEASURE
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YV12_BUFFER_CONFIG *new_yv12 = &cm->yv12_fb[cm->new_fb_idx];
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int recon_yoffset;
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int recon_y_stride = new_yv12->y_stride;
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#endif
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int mb_row, mb_col;
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unsigned int mb_activity;
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int64_t activity_sum = 0;
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x->mb_activity_ptr = cpi->mb_activity_map;
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// for each macroblock row in image
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for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
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#if ALT_ACT_MEASURE
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// reset above block coeffs
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xd->up_available = (mb_row != 0);
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recon_yoffset = (mb_row * recon_y_stride * 16);
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#endif
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// for each macroblock col in image
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for (mb_col = 0; mb_col < cm->mb_cols; mb_col++) {
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#if ALT_ACT_MEASURE
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xd->plane[0].dst.buf = new_yv12->y_buffer + recon_yoffset;
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xd->left_available = (mb_col != 0);
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recon_yoffset += 16;
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#endif
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// measure activity
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mb_activity = mb_activity_measure(cpi, x, mb_row, mb_col);
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// Keep frame sum
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activity_sum += mb_activity;
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// Store MB level activity details.
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*x->mb_activity_ptr = mb_activity;
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// Increment activity map pointer
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x->mb_activity_ptr++;
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// adjust to the next column of source macroblocks
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x->plane[0].src.buf += 16;
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}
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// adjust to the next row of mbs
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x->plane[0].src.buf += 16 * x->plane[0].src.stride - 16 * cm->mb_cols;
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#if ALT_ACT_MEASURE
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// extend the recon for intra prediction
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vp9_extend_mb_row(new_yv12, xd->plane[0].dst.buf + 16,
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xd->plane[1].dst.buf + 8, xd->plane[2].dst.buf + 8);
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#endif
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}
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// Calculate an "average" MB activity
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calc_av_activity(cpi, activity_sum);
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#if USE_ACT_INDEX
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// Calculate an activity index number of each mb
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calc_activity_index(cpi, x);
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#endif
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}
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// Macroblock activity masking
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void vp9_activity_masking(VP9_COMP *cpi, MACROBLOCK *x) {
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#if USE_ACT_INDEX
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x->rdmult += *(x->mb_activity_ptr) * (x->rdmult >> 2);
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x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
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x->errorperbit += (x->errorperbit == 0);
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#else
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int64_t a;
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int64_t b;
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int64_t act = *(x->mb_activity_ptr);
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// Apply the masking to the RD multiplier.
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a = act + (2 * cpi->activity_avg);
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b = (2 * act) + cpi->activity_avg;
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x->rdmult = (unsigned int)(((int64_t)x->rdmult * b + (a >> 1)) / a);
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x->errorperbit = x->rdmult * 100 / (110 * x->rddiv);
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x->errorperbit += (x->errorperbit == 0);
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#endif
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// Activity based Zbin adjustment
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adjust_act_zbin(cpi, x);
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}
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static void update_state(VP9_COMP *cpi,
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PICK_MODE_CONTEXT *ctx,
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BLOCK_SIZE_TYPE bsize,
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int output_enabled) {
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int i, x_idx, y;
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VP9_COMMON *const cm = &cpi->common;
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MACROBLOCK *const x = &cpi->mb;
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MACROBLOCKD *const xd = &x->e_mbd;
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MODE_INFO *mi = &ctx->mic;
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MB_MODE_INFO *const mbmi = &xd->mode_info_context->mbmi;
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int mb_mode = mi->mbmi.mode;
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int mb_mode_index = ctx->best_mode_index;
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const int mis = cpi->common.mode_info_stride;
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const int bh = 1 << mi_height_log2(bsize), bw = 1 << mi_width_log2(bsize);
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#if CONFIG_DEBUG
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assert(mb_mode < MB_MODE_COUNT);
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assert(mb_mode_index < MAX_MODES);
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assert(mi->mbmi.ref_frame < MAX_REF_FRAMES);
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#endif
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assert(mi->mbmi.sb_type == bsize);
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// Restore the coding context of the MB to that that was in place
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// when the mode was picked for it
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for (y = 0; y < bh; y++) {
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for (x_idx = 0; x_idx < bw; x_idx++) {
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if ((xd->mb_to_right_edge >> (3 + LOG2_MI_SIZE)) + bw > x_idx &&
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(xd->mb_to_bottom_edge >> (3 + LOG2_MI_SIZE)) + bh > y) {
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MODE_INFO *mi_addr = xd->mode_info_context + x_idx + y * mis;
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vpx_memcpy(mi_addr, mi, sizeof(MODE_INFO));
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}
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}
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}
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if (bsize < BLOCK_SIZE_SB32X32) {
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if (bsize < BLOCK_SIZE_MB16X16)
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ctx->txfm_rd_diff[ALLOW_16X16] = ctx->txfm_rd_diff[ALLOW_8X8];
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ctx->txfm_rd_diff[ALLOW_32X32] = ctx->txfm_rd_diff[ALLOW_16X16];
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}
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if (mb_mode == SPLITMV) {
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vpx_memcpy(x->partition_info, &ctx->partition_info,
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sizeof(PARTITION_INFO));
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mbmi->mv[0].as_int =
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x->partition_info->bmi[3].mv.as_int;
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mbmi->mv[1].as_int =
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x->partition_info->bmi[3].second_mv.as_int;
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}
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x->skip = ctx->skip;
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if (!output_enabled)
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return;
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{
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int segment_id = mbmi->segment_id, ref_pred_flag;
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if (!vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP)) {
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for (i = 0; i < NB_TXFM_MODES; i++) {
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cpi->rd_tx_select_diff[i] += ctx->txfm_rd_diff[i];
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}
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}
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// Did the chosen reference frame match its predicted value.
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ref_pred_flag = ((xd->mode_info_context->mbmi.ref_frame ==
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vp9_get_pred_ref(cm, xd)));
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vp9_set_pred_flag(xd, PRED_REF, ref_pred_flag);
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if (!xd->segmentation_enabled ||
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!vp9_segfeature_active(xd, segment_id, SEG_LVL_REF_FRAME) ||
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vp9_check_segref(xd, segment_id, INTRA_FRAME) +
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vp9_check_segref(xd, segment_id, LAST_FRAME) +
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vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
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vp9_check_segref(xd, segment_id, ALTREF_FRAME) > 1) {
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// Get the prediction context and status
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int pred_context = vp9_get_pred_context(cm, xd, PRED_REF);
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// Count prediction success
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cpi->ref_pred_count[pred_context][ref_pred_flag]++;
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}
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}
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if (cpi->common.frame_type == KEY_FRAME) {
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// Restore the coding modes to that held in the coding context
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// if (mb_mode == I4X4_PRED)
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// for (i = 0; i < 16; i++)
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// {
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// xd->block[i].bmi.as_mode =
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// xd->mode_info_context->bmi[i].as_mode;
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// assert(xd->mode_info_context->bmi[i].as_mode < MB_MODE_COUNT);
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// }
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#if CONFIG_INTERNAL_STATS
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static const int kf_mode_index[] = {
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THR_DC /*DC_PRED*/,
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THR_V_PRED /*V_PRED*/,
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THR_H_PRED /*H_PRED*/,
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THR_D45_PRED /*D45_PRED*/,
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THR_D135_PRED /*D135_PRED*/,
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THR_D117_PRED /*D117_PRED*/,
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THR_D153_PRED /*D153_PRED*/,
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THR_D27_PRED /*D27_PRED*/,
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THR_D63_PRED /*D63_PRED*/,
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THR_TM /*TM_PRED*/,
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THR_B_PRED /*I4X4_PRED*/,
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};
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cpi->mode_chosen_counts[kf_mode_index[mb_mode]]++;
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#endif
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} else {
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/*
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// Reduce the activation RD thresholds for the best choice mode
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if ((cpi->rd_baseline_thresh[mb_mode_index] > 0) &&
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(cpi->rd_baseline_thresh[mb_mode_index] < (INT_MAX >> 2)))
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{
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int best_adjustment = (cpi->rd_thresh_mult[mb_mode_index] >> 2);
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cpi->rd_thresh_mult[mb_mode_index] =
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(cpi->rd_thresh_mult[mb_mode_index]
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>= (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]++;
|
|
if (mbmi->mode == SPLITMV || mbmi->mode == NEWMV) {
|
|
int_mv best_mv, best_second_mv;
|
|
MV_REFERENCE_FRAME rf = mbmi->ref_frame;
|
|
best_mv.as_int = ctx->best_ref_mv.as_int;
|
|
best_second_mv.as_int = ctx->second_best_ref_mv.as_int;
|
|
if (mbmi->mode == NEWMV) {
|
|
best_mv.as_int = mbmi->ref_mvs[rf][0].as_int;
|
|
best_second_mv.as_int = mbmi->ref_mvs[mbmi->second_ref_frame][0].as_int;
|
|
}
|
|
mbmi->best_mv.as_int = best_mv.as_int;
|
|
mbmi->best_second_mv.as_int = best_second_mv.as_int;
|
|
vp9_update_nmv_count(cpi, x, &best_mv, &best_second_mv);
|
|
}
|
|
|
|
if (bsize > BLOCK_SIZE_SB8X8 && mbmi->mode == NEWMV) {
|
|
int i, j;
|
|
for (j = 0; j < bh; ++j)
|
|
for (i = 0; i < bw; ++i)
|
|
xd->mode_info_context[mis * j + i].mbmi = *mbmi;
|
|
}
|
|
|
|
if (cpi->common.mcomp_filter_type == SWITCHABLE &&
|
|
is_inter_mode(mbmi->mode)) {
|
|
++cpi->switchable_interp_count
|
|
[vp9_get_pred_context(&cpi->common, xd, PRED_SWITCHABLE_INTERP)]
|
|
[vp9_switchable_interp_map[mbmi->interp_filter]];
|
|
}
|
|
|
|
cpi->rd_comp_pred_diff[SINGLE_PREDICTION_ONLY] += ctx->single_pred_diff;
|
|
cpi->rd_comp_pred_diff[COMP_PREDICTION_ONLY] += ctx->comp_pred_diff;
|
|
cpi->rd_comp_pred_diff[HYBRID_PREDICTION] += ctx->hybrid_pred_diff;
|
|
}
|
|
}
|
|
|
|
static unsigned find_seg_id(uint8_t *buf, BLOCK_SIZE_TYPE bsize,
|
|
int start_y, int height, int start_x, int width) {
|
|
const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize);
|
|
const int end_x = MIN(start_x + bw, width);
|
|
const int end_y = MIN(start_y + bh, height);
|
|
int x, y;
|
|
unsigned seg_id = -1;
|
|
|
|
buf += width * start_y;
|
|
for (y = start_y; y < end_y; y++, buf += width) {
|
|
for (x = start_x; x < end_x; x++) {
|
|
seg_id = MIN(seg_id, buf[x]);
|
|
}
|
|
}
|
|
|
|
return seg_id;
|
|
}
|
|
|
|
void vp9_setup_src_planes(MACROBLOCK *x,
|
|
const YV12_BUFFER_CONFIG *src,
|
|
int mb_row, int mb_col) {
|
|
setup_pred_plane(&x->plane[0].src,
|
|
src->y_buffer, src->y_stride,
|
|
mb_row, mb_col, NULL,
|
|
x->e_mbd.plane[0].subsampling_x,
|
|
x->e_mbd.plane[0].subsampling_y);
|
|
setup_pred_plane(&x->plane[1].src,
|
|
src->u_buffer, src->uv_stride,
|
|
mb_row, mb_col, NULL,
|
|
x->e_mbd.plane[1].subsampling_x,
|
|
x->e_mbd.plane[1].subsampling_y);
|
|
setup_pred_plane(&x->plane[2].src,
|
|
src->v_buffer, src->uv_stride,
|
|
mb_row, mb_col, NULL,
|
|
x->e_mbd.plane[2].subsampling_x,
|
|
x->e_mbd.plane[2].subsampling_y);
|
|
}
|
|
|
|
static void set_offsets(VP9_COMP *cpi,
|
|
int mi_row, int mi_col, BLOCK_SIZE_TYPE bsize) {
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
MB_MODE_INFO *mbmi;
|
|
const int dst_fb_idx = cm->new_fb_idx;
|
|
const int idx_str = xd->mode_info_stride * mi_row + mi_col;
|
|
const int bw = 1 << mi_width_log2(bsize), bh = 1 << mi_height_log2(bsize);
|
|
const int mb_row = mi_row >> 1;
|
|
const int mb_col = mi_col >> 1;
|
|
const int idx_map = mb_row * cm->mb_cols + mb_col;
|
|
int i;
|
|
|
|
// entropy context structures
|
|
for (i = 0; i < MAX_MB_PLANE; i++) {
|
|
xd->plane[i].above_context = cm->above_context[i] +
|
|
(mi_col * 2 >> xd->plane[i].subsampling_x);
|
|
xd->plane[i].left_context = cm->left_context[i] +
|
|
(((mi_row * 2) & 15) >> xd->plane[i].subsampling_y);
|
|
}
|
|
|
|
// partition contexts
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
|
|
// Activity map pointer
|
|
x->mb_activity_ptr = &cpi->mb_activity_map[idx_map];
|
|
x->active_ptr = cpi->active_map + idx_map;
|
|
|
|
/* pointers to mode info contexts */
|
|
x->partition_info = x->pi + idx_str;
|
|
xd->mode_info_context = cm->mi + idx_str;
|
|
mbmi = &xd->mode_info_context->mbmi;
|
|
xd->prev_mode_info_context = cm->prev_mi + idx_str;
|
|
|
|
// Set up destination pointers
|
|
setup_dst_planes(xd, &cm->yv12_fb[dst_fb_idx], mi_row, mi_col);
|
|
|
|
/* Set up limit values for MV components to prevent them from
|
|
* extending beyond the UMV borders assuming 16x16 block size */
|
|
x->mv_row_min = -((mi_row * MI_SIZE) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
|
|
x->mv_col_min = -((mi_col * MI_SIZE) + VP9BORDERINPIXELS - VP9_INTERP_EXTEND);
|
|
x->mv_row_max = ((cm->mi_rows - mi_row) * MI_SIZE +
|
|
(VP9BORDERINPIXELS - MI_SIZE * bh - VP9_INTERP_EXTEND));
|
|
x->mv_col_max = ((cm->mi_cols - mi_col) * MI_SIZE +
|
|
(VP9BORDERINPIXELS - MI_SIZE * bw - VP9_INTERP_EXTEND));
|
|
|
|
// Set up distance of MB to edge of frame in 1/8th pel units
|
|
assert(!(mi_col & (bw - 1)) && !(mi_row & (bh - 1)));
|
|
set_mi_row_col(cm, xd, mi_row, bh, mi_col, bw);
|
|
|
|
/* set up source buffers */
|
|
vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col);
|
|
|
|
/* R/D setup */
|
|
x->rddiv = cpi->RDDIV;
|
|
x->rdmult = cpi->RDMULT;
|
|
|
|
/* segment ID */
|
|
if (xd->segmentation_enabled) {
|
|
uint8_t *map = xd->update_mb_segmentation_map ? cpi->segmentation_map
|
|
: cm->last_frame_seg_map;
|
|
mbmi->segment_id = find_seg_id(map, bsize, mi_row,
|
|
cm->mi_rows, mi_col, cm->mi_cols);
|
|
|
|
assert(mbmi->segment_id <= (MAX_MB_SEGMENTS-1));
|
|
vp9_mb_init_quantizer(cpi, x);
|
|
|
|
if (xd->segmentation_enabled && cpi->seg0_cnt > 0 &&
|
|
!vp9_segfeature_active(xd, 0, SEG_LVL_REF_FRAME) &&
|
|
vp9_segfeature_active(xd, 1, SEG_LVL_REF_FRAME) &&
|
|
vp9_check_segref(xd, 1, INTRA_FRAME) +
|
|
vp9_check_segref(xd, 1, LAST_FRAME) +
|
|
vp9_check_segref(xd, 1, GOLDEN_FRAME) +
|
|
vp9_check_segref(xd, 1, ALTREF_FRAME) == 1) {
|
|
cpi->seg0_progress = (cpi->seg0_idx << 16) / cpi->seg0_cnt;
|
|
} else {
|
|
const int y = mb_row & ~3;
|
|
const int x = mb_col & ~3;
|
|
const int p16 = ((mb_row & 1) << 1) + (mb_col & 1);
|
|
const int p32 = ((mb_row & 2) << 2) + ((mb_col & 2) << 1);
|
|
const int tile_progress =
|
|
cm->cur_tile_mi_col_start * cm->mb_rows >> 1;
|
|
const int mb_cols =
|
|
(cm->cur_tile_mi_col_end - cm->cur_tile_mi_col_start) >> 1;
|
|
|
|
cpi->seg0_progress =
|
|
((y * mb_cols + x * 4 + p32 + p16 + tile_progress) << 16) / cm->MBs;
|
|
}
|
|
} else {
|
|
mbmi->segment_id = 0;
|
|
}
|
|
}
|
|
|
|
static void pick_sb_modes(VP9_COMP *cpi, int mi_row, int mi_col,
|
|
TOKENEXTRA **tp, int *totalrate, int *totaldist,
|
|
BLOCK_SIZE_TYPE bsize, PICK_MODE_CONTEXT *ctx) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
|
|
set_offsets(cpi, mi_row, mi_col, bsize);
|
|
xd->mode_info_context->mbmi.sb_type = bsize;
|
|
if (cpi->oxcf.tuning == VP8_TUNE_SSIM)
|
|
vp9_activity_masking(cpi, x);
|
|
|
|
/* 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) {
|
|
vp9_rd_pick_intra_mode_sb(cpi, x, totalrate, totaldist, bsize, ctx);
|
|
} else {
|
|
vp9_rd_pick_inter_mode_sb(cpi, x, mi_row, mi_col, totalrate, totaldist,
|
|
bsize, ctx);
|
|
}
|
|
}
|
|
|
|
static void update_stats(VP9_COMP *cpi, int mi_row, int mi_col) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
MODE_INFO *mi = xd->mode_info_context;
|
|
MB_MODE_INFO *const mbmi = &mi->mbmi;
|
|
|
|
if (cm->frame_type == KEY_FRAME) {
|
|
#ifdef MODE_STATS
|
|
y_modes[mbmi->mode]++;
|
|
#endif
|
|
} else {
|
|
int segment_id, seg_ref_active;
|
|
|
|
if (mbmi->ref_frame) {
|
|
int pred_context = vp9_get_pred_context(cm, xd, PRED_COMP);
|
|
|
|
if (mbmi->second_ref_frame <= INTRA_FRAME)
|
|
cpi->single_pred_count[pred_context]++;
|
|
else
|
|
cpi->comp_pred_count[pred_context]++;
|
|
}
|
|
|
|
#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 = vp9_segfeature_active(xd, segment_id,
|
|
SEG_LVL_REF_FRAME);
|
|
if (!seg_ref_active ||
|
|
((vp9_check_segref(xd, segment_id, INTRA_FRAME) +
|
|
vp9_check_segref(xd, segment_id, LAST_FRAME) +
|
|
vp9_check_segref(xd, segment_id, GOLDEN_FRAME) +
|
|
vp9_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++;
|
|
}
|
|
}
|
|
|
|
static void set_block_index(MACROBLOCKD *xd, int idx,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
if (bsize >= BLOCK_SIZE_SB32X32) {
|
|
xd->sb_index = idx;
|
|
} else if (bsize >= BLOCK_SIZE_MB16X16) {
|
|
xd->mb_index = idx;
|
|
} else {
|
|
xd->b_index = idx;
|
|
}
|
|
}
|
|
|
|
// TODO(jingning): the variables used here are little complicated. need further
|
|
// refactoring on organizing the the temporary buffers, when recursive
|
|
// partition down to 4x4 block size is enabled.
|
|
static PICK_MODE_CONTEXT *get_block_context(MACROBLOCK *x,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
|
|
switch (bsize) {
|
|
case BLOCK_SIZE_SB64X64:
|
|
return &x->sb64_context;
|
|
case BLOCK_SIZE_SB64X32:
|
|
return &x->sb64x32_context[xd->sb_index];
|
|
case BLOCK_SIZE_SB32X64:
|
|
return &x->sb32x64_context[xd->sb_index];
|
|
case BLOCK_SIZE_SB32X32:
|
|
return &x->sb32_context[xd->sb_index];
|
|
case BLOCK_SIZE_SB32X16:
|
|
return &x->sb32x16_context[xd->sb_index][xd->mb_index];
|
|
case BLOCK_SIZE_SB16X32:
|
|
return &x->sb16x32_context[xd->sb_index][xd->mb_index];
|
|
case BLOCK_SIZE_MB16X16:
|
|
return &x->mb_context[xd->sb_index][xd->mb_index];
|
|
case BLOCK_SIZE_SB16X8:
|
|
return &x->sb16x8_context[xd->sb_index][xd->mb_index][xd->b_index];
|
|
case BLOCK_SIZE_SB8X16:
|
|
return &x->sb8x16_context[xd->sb_index][xd->mb_index][xd->b_index];
|
|
case BLOCK_SIZE_SB8X8:
|
|
return &x->sb8_context[xd->sb_index][xd->mb_index][xd->b_index];
|
|
default:
|
|
assert(0);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static BLOCK_SIZE_TYPE *get_sb_partitioning(MACROBLOCK *x,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
MACROBLOCKD *xd = &x->e_mbd;
|
|
switch (bsize) {
|
|
case BLOCK_SIZE_SB64X64:
|
|
return &x->sb64_partitioning;
|
|
case BLOCK_SIZE_SB32X32:
|
|
return &x->sb_partitioning[xd->sb_index];
|
|
case BLOCK_SIZE_MB16X16:
|
|
return &x->mb_partitioning[xd->sb_index][xd->mb_index];
|
|
default:
|
|
assert(0);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static void restore_context(VP9_COMP *cpi, int mi_row, int mi_col,
|
|
ENTROPY_CONTEXT a[16 * MAX_MB_PLANE],
|
|
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE],
|
|
PARTITION_CONTEXT sa[8],
|
|
PARTITION_CONTEXT sl[8],
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
int p;
|
|
int bwl = b_width_log2(bsize), bw = 1 << bwl;
|
|
int bhl = b_height_log2(bsize), bh = 1 << bhl;
|
|
int mwl = mi_width_log2(bsize), mw = 1 << mwl;
|
|
int mhl = mi_height_log2(bsize), mh = 1 << mhl;
|
|
for (p = 0; p < MAX_MB_PLANE; p++) {
|
|
vpx_memcpy(cm->above_context[p] +
|
|
((mi_col * 2) >> xd->plane[p].subsampling_x),
|
|
a + bw * p,
|
|
sizeof(ENTROPY_CONTEXT) * bw >> xd->plane[p].subsampling_x);
|
|
vpx_memcpy(cm->left_context[p] +
|
|
((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
|
|
l + bh * p,
|
|
sizeof(ENTROPY_CONTEXT) * bh >> xd->plane[p].subsampling_y);
|
|
}
|
|
vpx_memcpy(cm->above_seg_context + mi_col, sa,
|
|
sizeof(PARTITION_CONTEXT) * mw);
|
|
vpx_memcpy(cm->left_seg_context + (mi_row & MI_MASK), sl,
|
|
sizeof(PARTITION_CONTEXT) * mh);
|
|
}
|
|
|
|
static void encode_b(VP9_COMP *cpi, TOKENEXTRA **tp,
|
|
int mi_row, int mi_col, int output_enabled,
|
|
BLOCK_SIZE_TYPE bsize, int sub_index) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
|
|
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
|
|
return;
|
|
|
|
if (sub_index != -1)
|
|
set_block_index(xd, sub_index, bsize);
|
|
set_offsets(cpi, mi_row, mi_col, bsize);
|
|
update_state(cpi, get_block_context(x, bsize), bsize, output_enabled);
|
|
encode_superblock(cpi, tp, output_enabled, mi_row, mi_col, bsize);
|
|
|
|
if (output_enabled) {
|
|
update_stats(cpi, mi_row, mi_col);
|
|
|
|
(*tp)->token = EOSB_TOKEN;
|
|
(*tp)++;
|
|
}
|
|
}
|
|
|
|
static void encode_sb(VP9_COMP *cpi, TOKENEXTRA **tp,
|
|
int mi_row, int mi_col, int output_enabled,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
BLOCK_SIZE_TYPE c1 = BLOCK_SIZE_SB8X8;
|
|
const int bsl = mi_width_log2(bsize), bs = 1 << (bsl - 1);
|
|
int bwl, bhl;
|
|
int UNINITIALIZED_IS_SAFE(pl);
|
|
|
|
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
|
|
return;
|
|
|
|
if (bsize > BLOCK_SIZE_SB8X8) {
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
pl = partition_plane_context(xd, bsize);
|
|
c1 = *(get_sb_partitioning(x, bsize));
|
|
}
|
|
|
|
bwl = mi_width_log2(c1), bhl = mi_height_log2(c1);
|
|
|
|
if (bsl == bwl && bsl == bhl) {
|
|
if (output_enabled && bsize > BLOCK_SIZE_SB8X8)
|
|
cpi->partition_count[pl][PARTITION_NONE]++;
|
|
encode_b(cpi, tp, mi_row, mi_col, output_enabled, c1, -1);
|
|
} else if (bsl == bhl && bsl > bwl) {
|
|
if (output_enabled)
|
|
cpi->partition_count[pl][PARTITION_VERT]++;
|
|
encode_b(cpi, tp, mi_row, mi_col, output_enabled, c1, 0);
|
|
encode_b(cpi, tp, mi_row, mi_col + bs, output_enabled, c1, 1);
|
|
} else if (bsl == bwl && bsl > bhl) {
|
|
if (output_enabled)
|
|
cpi->partition_count[pl][PARTITION_HORZ]++;
|
|
encode_b(cpi, tp, mi_row, mi_col, output_enabled, c1, 0);
|
|
encode_b(cpi, tp, mi_row + bs, mi_col, output_enabled, c1, 1);
|
|
} else {
|
|
BLOCK_SIZE_TYPE subsize;
|
|
int i;
|
|
|
|
assert(bwl < bsl && bhl < bsl);
|
|
if (bsize == BLOCK_SIZE_SB64X64) {
|
|
subsize = BLOCK_SIZE_SB32X32;
|
|
} else if (bsize == BLOCK_SIZE_SB32X32) {
|
|
subsize = BLOCK_SIZE_MB16X16;
|
|
} else {
|
|
assert(bsize == BLOCK_SIZE_MB16X16);
|
|
subsize = BLOCK_SIZE_SB8X8;
|
|
}
|
|
|
|
if (output_enabled)
|
|
cpi->partition_count[pl][PARTITION_SPLIT]++;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
const int x_idx = i & 1, y_idx = i >> 1;
|
|
|
|
set_block_index(xd, i, subsize);
|
|
encode_sb(cpi, tp, mi_row + y_idx * bs, mi_col + x_idx * bs,
|
|
output_enabled, subsize);
|
|
}
|
|
}
|
|
|
|
if (bsize > BLOCK_SIZE_SB8X8 &&
|
|
(bsize == BLOCK_SIZE_MB16X16 || bsl == bwl || bsl == bhl)) {
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
update_partition_context(xd, c1, bsize);
|
|
}
|
|
}
|
|
|
|
|
|
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
|
|
// unlikely to be selected depending on previously rate-distortion optimization
|
|
// results, for encoding speed-up.
|
|
static void rd_pick_partition(VP9_COMP *cpi, TOKENEXTRA **tp,
|
|
int mi_row, int mi_col,
|
|
BLOCK_SIZE_TYPE bsize,
|
|
int *rate, int *dist) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
int bsl = b_width_log2(bsize), bs = 1 << bsl;
|
|
int msl = mi_height_log2(bsize), ms = 1 << msl;
|
|
ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE];
|
|
PARTITION_CONTEXT sl[8], sa[8];
|
|
TOKENEXTRA *tp_orig = *tp;
|
|
int i, p, pl;
|
|
BLOCK_SIZE_TYPE subsize;
|
|
int srate = INT_MAX, sdist = INT_MAX;
|
|
|
|
assert(mi_height_log2(bsize) == mi_width_log2(bsize));
|
|
|
|
// buffer the above/left context information of the block in search.
|
|
for (p = 0; p < MAX_MB_PLANE; ++p) {
|
|
vpx_memcpy(a + bs * p, cm->above_context[p] +
|
|
(mi_col * 2 >> xd->plane[p].subsampling_x),
|
|
sizeof(ENTROPY_CONTEXT) * bs >> xd->plane[p].subsampling_x);
|
|
vpx_memcpy(l + bs * p, cm->left_context[p] +
|
|
((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y),
|
|
sizeof(ENTROPY_CONTEXT) * bs >> xd->plane[p].subsampling_y);
|
|
}
|
|
vpx_memcpy(sa, cm->above_seg_context + mi_col,
|
|
sizeof(PARTITION_CONTEXT) * ms);
|
|
vpx_memcpy(sl, cm->left_seg_context + (mi_row & MI_MASK),
|
|
sizeof(PARTITION_CONTEXT) * ms);
|
|
|
|
// PARTITION_SPLIT
|
|
if (bsize >= BLOCK_SIZE_MB16X16) {
|
|
int r4 = 0, d4 = 0;
|
|
subsize = get_subsize(bsize, PARTITION_SPLIT);
|
|
*(get_sb_partitioning(x, bsize)) = subsize;
|
|
|
|
for (i = 0; i < 4; ++i) {
|
|
int x_idx = (i & 1) * (ms >> 1);
|
|
int y_idx = (i >> 1) * (ms >> 1);
|
|
int r, d;
|
|
|
|
if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols))
|
|
continue;
|
|
|
|
*(get_sb_index(xd, subsize)) = i;
|
|
rd_pick_partition(cpi, tp, mi_row + y_idx, mi_col + x_idx, subsize,
|
|
&r, &d);
|
|
r4 += r;
|
|
d4 += d;
|
|
}
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
pl = partition_plane_context(xd, bsize);
|
|
r4 += x->partition_cost[pl][PARTITION_SPLIT];
|
|
|
|
srate = r4;
|
|
sdist = d4;
|
|
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
|
|
}
|
|
|
|
// PARTITION_HORZ
|
|
if ((mi_col + ms <= cm->mi_cols) && (mi_row + (ms >> 1) <= cm->mi_rows) &&
|
|
(bsize >= BLOCK_SIZE_MB16X16)) {
|
|
int r2, d2;
|
|
int mb_skip = 0;
|
|
subsize = get_subsize(bsize, PARTITION_HORZ);
|
|
*(get_sb_index(xd, subsize)) = 0;
|
|
pick_sb_modes(cpi, mi_row, mi_col, tp, &r2, &d2, subsize,
|
|
get_block_context(x, subsize));
|
|
|
|
if (mi_row + ms <= cm->mi_rows) {
|
|
int r, d;
|
|
update_state(cpi, get_block_context(x, subsize), subsize, 0);
|
|
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
|
|
*(get_sb_index(xd, subsize)) = 1;
|
|
pick_sb_modes(cpi, mi_row + (ms >> 1), mi_col, tp, &r, &d, subsize,
|
|
get_block_context(x, subsize));
|
|
r2 += r;
|
|
d2 += d;
|
|
} else {
|
|
if (mi_row + (ms >> 1) != cm->mi_rows)
|
|
mb_skip = 1;
|
|
}
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
pl = partition_plane_context(xd, bsize);
|
|
r2 += x->partition_cost[pl][PARTITION_HORZ];
|
|
|
|
if ((RDCOST(x->rdmult, x->rddiv, r2, d2) <
|
|
RDCOST(x->rdmult, x->rddiv, srate, sdist)) && !mb_skip) {
|
|
srate = r2;
|
|
sdist = d2;
|
|
*(get_sb_partitioning(x, bsize)) = subsize;
|
|
}
|
|
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
|
|
}
|
|
|
|
// PARTITION_VERT
|
|
if ((mi_row + ms <= cm->mi_rows) && (mi_col + (ms >> 1) <= cm->mi_cols) &&
|
|
(bsize >= BLOCK_SIZE_MB16X16)) {
|
|
int r2, d2;
|
|
int mb_skip = 0;
|
|
subsize = get_subsize(bsize, PARTITION_VERT);
|
|
*(get_sb_index(xd, subsize)) = 0;
|
|
pick_sb_modes(cpi, mi_row, mi_col, tp, &r2, &d2, subsize,
|
|
get_block_context(x, subsize));
|
|
if (mi_col + ms <= cm->mi_cols) {
|
|
int r, d;
|
|
update_state(cpi, get_block_context(x, subsize), subsize, 0);
|
|
encode_superblock(cpi, tp, 0, mi_row, mi_col, subsize);
|
|
*(get_sb_index(xd, subsize)) = 1;
|
|
pick_sb_modes(cpi, mi_row, mi_col + (ms >> 1), tp, &r, &d, subsize,
|
|
get_block_context(x, subsize));
|
|
r2 += r;
|
|
d2 += d;
|
|
} else {
|
|
if (mi_col + (ms >> 1) != cm->mi_cols)
|
|
mb_skip = 1;
|
|
}
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
pl = partition_plane_context(xd, bsize);
|
|
r2 += x->partition_cost[pl][PARTITION_VERT];
|
|
|
|
if ((RDCOST(x->rdmult, x->rddiv, r2, d2) <
|
|
RDCOST(x->rdmult, x->rddiv, srate, sdist)) && !mb_skip) {
|
|
srate = r2;
|
|
sdist = d2;
|
|
*(get_sb_partitioning(x, bsize)) = subsize;
|
|
}
|
|
restore_context(cpi, mi_row, mi_col, a, l, sa, sl, bsize);
|
|
}
|
|
|
|
// PARTITION_NONE
|
|
if (mi_row + ms <= cm->mi_rows && mi_col + ms <= cm->mi_cols) {
|
|
int r, d;
|
|
pick_sb_modes(cpi, mi_row, mi_col, tp, &r, &d, bsize,
|
|
get_block_context(x, bsize));
|
|
if (bsize >= BLOCK_SIZE_MB16X16) {
|
|
set_partition_seg_context(cm, xd, mi_row, mi_col);
|
|
pl = partition_plane_context(xd, bsize);
|
|
r += x->partition_cost[pl][PARTITION_NONE];
|
|
}
|
|
|
|
if (RDCOST(x->rdmult, x->rddiv, r, d) <
|
|
RDCOST(x->rdmult, x->rddiv, srate, sdist)) {
|
|
srate = r;
|
|
sdist = d;
|
|
if (bsize >= BLOCK_SIZE_MB16X16)
|
|
*(get_sb_partitioning(x, bsize)) = bsize;
|
|
}
|
|
}
|
|
|
|
assert(srate < INT_MAX && sdist < INT_MAX);
|
|
*rate = srate;
|
|
*dist = sdist;
|
|
|
|
encode_sb(cpi, tp, mi_row, mi_col, bsize == BLOCK_SIZE_SB64X64, bsize);
|
|
|
|
if (bsize == BLOCK_SIZE_SB64X64)
|
|
assert(tp_orig < *tp);
|
|
else
|
|
assert(tp_orig == *tp);
|
|
}
|
|
|
|
static void encode_sb_row(VP9_COMP *cpi, int mi_row,
|
|
TOKENEXTRA **tp, int *totalrate) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
int mi_col;
|
|
|
|
// Initialize the left context for the new SB row
|
|
vpx_memset(&cm->left_context, 0, sizeof(cm->left_context));
|
|
vpx_memset(cm->left_seg_context, 0, sizeof(cm->left_seg_context));
|
|
|
|
// Code each SB in the row
|
|
for (mi_col = cm->cur_tile_mi_col_start;
|
|
mi_col < cm->cur_tile_mi_col_end; mi_col += 8) {
|
|
int dummy_rate, dummy_dist;
|
|
rd_pick_partition(cpi, tp, mi_row, mi_col, BLOCK_SIZE_SB64X64,
|
|
&dummy_rate, &dummy_dist);
|
|
}
|
|
}
|
|
|
|
static void init_encode_frame_mb_context(VP9_COMP *cpi) {
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
|
|
x->act_zbin_adj = 0;
|
|
cpi->seg0_idx = 0;
|
|
vpx_memset(cpi->ref_pred_count, 0, sizeof(cpi->ref_pred_count));
|
|
|
|
xd->mode_info_stride = cm->mode_info_stride;
|
|
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)
|
|
vp9_init_mbmode_probs(cm);
|
|
|
|
// Copy data over into macro block data structures.
|
|
vp9_setup_src_planes(x, cpi->Source, 0, 0);
|
|
|
|
// TODO(jkoleszar): are these initializations required?
|
|
setup_pre_planes(xd, &cm->yv12_fb[cm->ref_frame_map[cpi->lst_fb_idx]], NULL,
|
|
0, 0, NULL, NULL);
|
|
setup_dst_planes(xd, &cm->yv12_fb[cm->new_fb_idx], 0, 0);
|
|
|
|
vp9_build_block_offsets(x);
|
|
|
|
vp9_setup_block_dptrs(&x->e_mbd, cm->subsampling_x, cm->subsampling_y);
|
|
|
|
xd->mode_info_context->mbmi.mode = DC_PRED;
|
|
xd->mode_info_context->mbmi.uv_mode = DC_PRED;
|
|
|
|
vp9_zero(cpi->count_mb_ref_frame_usage)
|
|
vp9_zero(cpi->bmode_count)
|
|
vp9_zero(cpi->ymode_count)
|
|
vp9_zero(cpi->y_uv_mode_count)
|
|
vp9_zero(cpi->sub_mv_ref_count)
|
|
vp9_zero(cpi->common.fc.mv_ref_ct)
|
|
vp9_zero(cpi->sb_ymode_count)
|
|
vp9_zero(cpi->partition_count);
|
|
|
|
// Note: this memset assumes above_context[0], [1] and [2]
|
|
// are allocated as part of the same buffer.
|
|
vpx_memset(cm->above_context[0], 0, sizeof(ENTROPY_CONTEXT) * 2 *
|
|
MAX_MB_PLANE * mi_cols_aligned_to_sb(cm));
|
|
vpx_memset(cm->above_seg_context, 0, sizeof(PARTITION_CONTEXT) *
|
|
mi_cols_aligned_to_sb(cm));
|
|
}
|
|
|
|
static void switch_lossless_mode(VP9_COMP *cpi, int lossless) {
|
|
if (lossless) {
|
|
cpi->mb.fwd_txm8x4 = vp9_short_walsh8x4;
|
|
cpi->mb.fwd_txm4x4 = vp9_short_walsh4x4;
|
|
cpi->mb.e_mbd.inv_txm4x4_1 = vp9_short_iwalsh4x4_1;
|
|
cpi->mb.e_mbd.inv_txm4x4 = vp9_short_iwalsh4x4;
|
|
cpi->mb.optimize = 0;
|
|
cpi->common.filter_level = 0;
|
|
cpi->zbin_mode_boost_enabled = 0;
|
|
cpi->common.txfm_mode = ONLY_4X4;
|
|
} else {
|
|
cpi->mb.fwd_txm8x4 = vp9_short_fdct8x4;
|
|
cpi->mb.fwd_txm4x4 = vp9_short_fdct4x4;
|
|
cpi->mb.e_mbd.inv_txm4x4_1 = vp9_short_idct4x4_1;
|
|
cpi->mb.e_mbd.inv_txm4x4 = vp9_short_idct4x4;
|
|
}
|
|
}
|
|
|
|
|
|
static void encode_frame_internal(VP9_COMP *cpi) {
|
|
int mi_row;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
int totalrate;
|
|
|
|
// fprintf(stderr, "encode_frame_internal frame %d (%d) type %d\n",
|
|
// cpi->common.current_video_frame, cpi->common.show_frame,
|
|
// cm->frame_type);
|
|
|
|
// 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.
|
|
vp9_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;
|
|
|
|
// Reset frame count of inter 0,0 motion vector usage.
|
|
cpi->inter_zz_count = 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;
|
|
|
|
vp9_zero(cpi->switchable_interp_count);
|
|
vp9_zero(cpi->best_switchable_interp_count);
|
|
|
|
xd->mode_info_context = cm->mi;
|
|
xd->prev_mode_info_context = cm->prev_mi;
|
|
|
|
vp9_zero(cpi->NMVcount);
|
|
vp9_zero(cpi->coef_counts_4x4);
|
|
vp9_zero(cpi->coef_counts_8x8);
|
|
vp9_zero(cpi->coef_counts_16x16);
|
|
vp9_zero(cpi->coef_counts_32x32);
|
|
vp9_zero(cm->fc.eob_branch_counts);
|
|
|
|
cpi->mb.e_mbd.lossless = (cm->base_qindex == 0 &&
|
|
cm->y_dc_delta_q == 0 &&
|
|
cm->uv_dc_delta_q == 0 &&
|
|
cm->uv_ac_delta_q == 0);
|
|
switch_lossless_mode(cpi, cpi->mb.e_mbd.lossless);
|
|
|
|
vp9_frame_init_quantizer(cpi);
|
|
|
|
vp9_initialize_rd_consts(cpi, cm->base_qindex + cm->y_dc_delta_q);
|
|
vp9_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));
|
|
vpx_memset(cpi->txfm_count_32x32p, 0, sizeof(cpi->txfm_count_32x32p));
|
|
vpx_memset(cpi->txfm_count_16x16p, 0, sizeof(cpi->txfm_count_16x16p));
|
|
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));
|
|
{
|
|
struct vpx_usec_timer emr_timer;
|
|
vpx_usec_timer_start(&emr_timer);
|
|
|
|
{
|
|
// Take tiles into account and give start/end MB
|
|
int tile_col, tile_row;
|
|
TOKENEXTRA *tp = cpi->tok;
|
|
|
|
for (tile_row = 0; tile_row < cm->tile_rows; tile_row++) {
|
|
vp9_get_tile_row_offsets(cm, tile_row);
|
|
|
|
for (tile_col = 0; tile_col < cm->tile_columns; tile_col++) {
|
|
TOKENEXTRA *tp_old = tp;
|
|
|
|
// For each row of SBs in the frame
|
|
vp9_get_tile_col_offsets(cm, tile_col);
|
|
for (mi_row = cm->cur_tile_mi_row_start;
|
|
mi_row < cm->cur_tile_mi_row_end;
|
|
mi_row += 8)
|
|
encode_sb_row(cpi, mi_row, &tp, &totalrate);
|
|
cpi->tok_count[tile_col] = (unsigned int)(tp - tp_old);
|
|
assert(tp - cpi->tok <=
|
|
get_token_alloc(cm->mb_rows, cm->mb_cols));
|
|
}
|
|
}
|
|
}
|
|
|
|
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(VP9_COMP *cpi) {
|
|
MACROBLOCKD *xd = &cpi->mb.e_mbd;
|
|
int ref_flags = cpi->ref_frame_flags;
|
|
|
|
if (vp9_segfeature_active(xd, 1, SEG_LVL_REF_FRAME)) {
|
|
if ((ref_flags & (VP9_LAST_FLAG | VP9_GOLD_FLAG)) == (VP9_LAST_FLAG | VP9_GOLD_FLAG) &&
|
|
vp9_check_segref(xd, 1, LAST_FRAME))
|
|
return 1;
|
|
if ((ref_flags & (VP9_GOLD_FLAG | VP9_ALT_FLAG)) == (VP9_GOLD_FLAG | VP9_ALT_FLAG) &&
|
|
vp9_check_segref(xd, 1, GOLDEN_FRAME))
|
|
return 1;
|
|
if ((ref_flags & (VP9_ALT_FLAG | VP9_LAST_FLAG)) == (VP9_ALT_FLAG | VP9_LAST_FLAG) &&
|
|
vp9_check_segref(xd, 1, ALTREF_FRAME))
|
|
return 1;
|
|
return 0;
|
|
} else {
|
|
return (!!(ref_flags & VP9_GOLD_FLAG) +
|
|
!!(ref_flags & VP9_LAST_FLAG) +
|
|
!!(ref_flags & VP9_ALT_FLAG)) >= 2;
|
|
}
|
|
}
|
|
|
|
static int get_skip_flag(MODE_INFO *mi, int mis, int ymbs, int xmbs) {
|
|
int x, y;
|
|
|
|
for (y = 0; y < ymbs; y++) {
|
|
for (x = 0; x < xmbs; x++) {
|
|
if (!mi[y * mis + x].mbmi.mb_skip_coeff)
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void set_txfm_flag(MODE_INFO *mi, int mis, int ymbs, int xmbs,
|
|
TX_SIZE txfm_size) {
|
|
int x, y;
|
|
|
|
for (y = 0; y < ymbs; y++) {
|
|
for (x = 0; x < xmbs; x++)
|
|
mi[y * mis + x].mbmi.txfm_size = txfm_size;
|
|
}
|
|
}
|
|
|
|
static void reset_skip_txfm_size_b(VP9_COMP *cpi, MODE_INFO *mi,
|
|
int mis, TX_SIZE txfm_max,
|
|
int bw, int bh, int mi_row, int mi_col,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MB_MODE_INFO *const mbmi = &mi->mbmi;
|
|
|
|
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
|
|
return;
|
|
|
|
if (mbmi->txfm_size > txfm_max) {
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
const int segment_id = mbmi->segment_id;
|
|
const int ymbs = MIN(bh, cm->mi_rows - mi_row);
|
|
const int xmbs = MIN(bw, cm->mi_cols - mi_col);
|
|
|
|
xd->mode_info_context = mi;
|
|
assert(vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP) ||
|
|
get_skip_flag(mi, mis, ymbs, xmbs));
|
|
set_txfm_flag(mi, mis, ymbs, xmbs, txfm_max);
|
|
}
|
|
}
|
|
|
|
static void reset_skip_txfm_size_sb(VP9_COMP *cpi, MODE_INFO *mi,
|
|
TX_SIZE txfm_max,
|
|
int mi_row, int mi_col,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
const int mis = cm->mode_info_stride;
|
|
int bwl, bhl;
|
|
const int bsl = mi_width_log2(bsize), bs = 1 << (bsl - 1);
|
|
|
|
if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols)
|
|
return;
|
|
|
|
bwl = mi_width_log2(mi->mbmi.sb_type);
|
|
bhl = mi_height_log2(mi->mbmi.sb_type);
|
|
|
|
if (bwl == bsl && bhl == bsl) {
|
|
reset_skip_txfm_size_b(cpi, mi, mis, txfm_max, 1 << bsl, 1 << bsl,
|
|
mi_row, mi_col, bsize);
|
|
} else if (bwl == bsl && bhl < bsl) {
|
|
reset_skip_txfm_size_b(cpi, mi, mis, txfm_max, 1 << bsl, bs,
|
|
mi_row, mi_col, bsize);
|
|
reset_skip_txfm_size_b(cpi, mi + bs * mis, mis, txfm_max, 1 << bsl, bs,
|
|
mi_row + bs, mi_col, bsize);
|
|
} else if (bwl < bsl && bhl == bsl) {
|
|
reset_skip_txfm_size_b(cpi, mi, mis, txfm_max, bs, 1 << bsl,
|
|
mi_row, mi_col, bsize);
|
|
reset_skip_txfm_size_b(cpi, mi + bs, mis, txfm_max, bs, 1 << bsl,
|
|
mi_row, mi_col + bs, bsize);
|
|
} else {
|
|
BLOCK_SIZE_TYPE subsize;
|
|
int n;
|
|
|
|
assert(bwl < bsl && bhl < bsl);
|
|
if (bsize == BLOCK_SIZE_SB64X64) {
|
|
subsize = BLOCK_SIZE_SB32X32;
|
|
} else if (bsize == BLOCK_SIZE_SB32X32) {
|
|
subsize = BLOCK_SIZE_MB16X16;
|
|
} else {
|
|
assert(bsize == BLOCK_SIZE_MB16X16);
|
|
subsize = BLOCK_SIZE_SB8X8;
|
|
}
|
|
|
|
for (n = 0; n < 4; n++) {
|
|
const int y_idx = n >> 1, x_idx = n & 0x01;
|
|
|
|
reset_skip_txfm_size_sb(cpi, mi + y_idx * bs * mis + x_idx * bs,
|
|
txfm_max, mi_row + y_idx * bs,
|
|
mi_col + x_idx * bs, subsize);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void reset_skip_txfm_size(VP9_COMP *cpi, TX_SIZE txfm_max) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
int mi_row, mi_col;
|
|
const int mis = cm->mode_info_stride;
|
|
MODE_INFO *mi, *mi_ptr = cm->mi;
|
|
|
|
for (mi_row = 0; mi_row < cm->mi_rows;
|
|
mi_row += 8, mi_ptr += 8 * mis) {
|
|
mi = mi_ptr;
|
|
for (mi_col = 0; mi_col < cm->mi_cols;
|
|
mi_col += 8, mi += 8) {
|
|
reset_skip_txfm_size_sb(cpi, mi, txfm_max,
|
|
mi_row, mi_col, BLOCK_SIZE_SB64X64);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_encode_frame(VP9_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->refresh_golden_frame)
|
|
frame_type = 3;
|
|
else if (cpi->refresh_golden_frame || cpi->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 */
|
|
|
|
cpi->mb.e_mbd.lossless = 0;
|
|
if (cpi->oxcf.lossless) {
|
|
txfm_type = ONLY_4X4;
|
|
cpi->mb.e_mbd.lossless = 1;
|
|
} else
|
|
#if 0
|
|
/* FIXME (rbultje): this code is disabled until we support cost updates
|
|
* while a frame is being encoded; 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_32X32] >=
|
|
cpi->rd_tx_select_threshes[frame_type][TX_MODE_SELECT] ?
|
|
ALLOW_32X32 : TX_MODE_SELECT;
|
|
#endif
|
|
cpi->common.txfm_mode = txfm_type;
|
|
if (txfm_type != TX_MODE_SELECT) {
|
|
cpi->common.prob_tx[0] = 128;
|
|
cpi->common.prob_tx[1] = 128;
|
|
}
|
|
cpi->common.comp_pred_mode = pred_type;
|
|
encode_frame_internal(cpi);
|
|
|
|
for (i = 0; i < NB_PREDICTION_TYPES; ++i) {
|
|
const int diff = (int)(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;
|
|
}
|
|
|
|
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_SB - 1), 0);
|
|
diff = (int)(pd / cpi->common.MBs);
|
|
cpi->rd_tx_select_threshes[frame_type][i] += diff;
|
|
cpi->rd_tx_select_threshes[frame_type][i] /= 2;
|
|
}
|
|
|
|
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 (cpi->common.txfm_mode == TX_MODE_SELECT) {
|
|
const int count4x4 = cpi->txfm_count_16x16p[TX_4X4] +
|
|
cpi->txfm_count_32x32p[TX_4X4] +
|
|
cpi->txfm_count_8x8p[TX_4X4];
|
|
const int count8x8_lp = cpi->txfm_count_32x32p[TX_8X8] +
|
|
cpi->txfm_count_16x16p[TX_8X8];
|
|
const int count8x8_8x8p = cpi->txfm_count_8x8p[TX_8X8];
|
|
const int count16x16_16x16p = cpi->txfm_count_16x16p[TX_16X16];
|
|
const int count16x16_lp = cpi->txfm_count_32x32p[TX_16X16];
|
|
const int count32x32 = cpi->txfm_count_32x32p[TX_32X32];
|
|
|
|
if (count4x4 == 0 && count16x16_lp == 0 && count16x16_16x16p == 0 &&
|
|
count32x32 == 0) {
|
|
cpi->common.txfm_mode = ALLOW_8X8;
|
|
reset_skip_txfm_size(cpi, TX_8X8);
|
|
} else if (count8x8_8x8p == 0 && count16x16_16x16p == 0 &&
|
|
count8x8_lp == 0 && count16x16_lp == 0 && count32x32 == 0) {
|
|
cpi->common.txfm_mode = ONLY_4X4;
|
|
reset_skip_txfm_size(cpi, TX_4X4);
|
|
} else if (count8x8_lp == 0 && count16x16_lp == 0 && count4x4 == 0) {
|
|
cpi->common.txfm_mode = ALLOW_32X32;
|
|
} else if (count32x32 == 0 && count8x8_lp == 0 && count4x4 == 0) {
|
|
cpi->common.txfm_mode = ALLOW_16X16;
|
|
reset_skip_txfm_size(cpi, TX_16X16);
|
|
}
|
|
}
|
|
|
|
// Update interpolation filter strategy for next frame.
|
|
if ((cpi->common.frame_type != KEY_FRAME) && (cpi->sf.search_best_filter))
|
|
vp9_select_interp_filter_type(cpi);
|
|
} else {
|
|
encode_frame_internal(cpi);
|
|
}
|
|
|
|
}
|
|
|
|
void vp9_build_block_offsets(MACROBLOCK *x) {
|
|
}
|
|
|
|
static void sum_intra_stats(VP9_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 == I4X4_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 < 4);
|
|
}
|
|
#endif
|
|
|
|
if (xd->mode_info_context->mbmi.sb_type > BLOCK_SIZE_SB8X8) {
|
|
++cpi->sb_ymode_count[m];
|
|
} else {
|
|
++cpi->ymode_count[m];
|
|
}
|
|
++cpi->y_uv_mode_count[m][uvm];
|
|
if (m == I4X4_PRED) {
|
|
int b = 0;
|
|
do {
|
|
int m = xd->mode_info_context->bmi[b].as_mode.first;
|
|
++cpi->bmode_count[m];
|
|
} while (++b < 4);
|
|
}
|
|
}
|
|
|
|
// Experimental stub function to create a per MB zbin adjustment based on
|
|
// some previously calculated measure of MB activity.
|
|
static void adjust_act_zbin(VP9_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
|
|
}
|
|
|
|
static void encode_superblock(VP9_COMP *cpi, TOKENEXTRA **t,
|
|
int output_enabled, int mi_row, int mi_col,
|
|
BLOCK_SIZE_TYPE bsize) {
|
|
VP9_COMMON *const cm = &cpi->common;
|
|
MACROBLOCK *const x = &cpi->mb;
|
|
MACROBLOCKD *const xd = &x->e_mbd;
|
|
int n;
|
|
MODE_INFO *mi = x->e_mbd.mode_info_context;
|
|
unsigned int segment_id = mi->mbmi.segment_id;
|
|
const int mis = cm->mode_info_stride;
|
|
const int bwl = mi_width_log2(bsize);
|
|
const int bw = 1 << bwl, bh = 1 << mi_height_log2(bsize);
|
|
|
|
if (cm->frame_type == KEY_FRAME) {
|
|
if (cpi->oxcf.tuning == VP8_TUNE_SSIM) {
|
|
adjust_act_zbin(cpi, x);
|
|
vp9_update_zbin_extra(cpi, x);
|
|
}
|
|
} else {
|
|
vp9_setup_interp_filters(xd, xd->mode_info_context->mbmi.interp_filter, cm);
|
|
|
|
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 = SPLIT_MV_ZBIN_BOOST;
|
|
} else {
|
|
cpi->zbin_mode_boost = MV_ZBIN_BOOST;
|
|
}
|
|
} else {
|
|
cpi->zbin_mode_boost = INTRA_ZBIN_BOOST;
|
|
}
|
|
}
|
|
|
|
vp9_update_zbin_extra(cpi, x);
|
|
}
|
|
|
|
if (xd->mode_info_context->mbmi.mode == I4X4_PRED) {
|
|
assert(bsize == BLOCK_SIZE_SB8X8 &&
|
|
xd->mode_info_context->mbmi.txfm_size == TX_4X4);
|
|
|
|
vp9_encode_intra4x4mby(x, bsize);
|
|
vp9_build_intra_predictors_sbuv_s(&x->e_mbd, bsize);
|
|
vp9_encode_sbuv(cm, x, bsize);
|
|
|
|
if (output_enabled)
|
|
sum_intra_stats(cpi, x);
|
|
} else if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME) {
|
|
vp9_build_intra_predictors_sby_s(&x->e_mbd, bsize);
|
|
vp9_build_intra_predictors_sbuv_s(&x->e_mbd, bsize);
|
|
if (output_enabled)
|
|
sum_intra_stats(cpi, x);
|
|
} else {
|
|
int ref_fb_idx, second_ref_fb_idx;
|
|
|
|
assert(cm->frame_type != KEY_FRAME);
|
|
|
|
if (xd->mode_info_context->mbmi.ref_frame == LAST_FRAME)
|
|
ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
|
|
else if (xd->mode_info_context->mbmi.ref_frame == GOLDEN_FRAME)
|
|
ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
|
|
else
|
|
ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
|
|
|
|
if (xd->mode_info_context->mbmi.second_ref_frame > 0) {
|
|
if (xd->mode_info_context->mbmi.second_ref_frame == LAST_FRAME)
|
|
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->lst_fb_idx];
|
|
else if (xd->mode_info_context->mbmi.second_ref_frame == GOLDEN_FRAME)
|
|
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->gld_fb_idx];
|
|
else
|
|
second_ref_fb_idx = cpi->common.ref_frame_map[cpi->alt_fb_idx];
|
|
}
|
|
|
|
setup_pre_planes(xd,
|
|
&cpi->common.yv12_fb[ref_fb_idx],
|
|
xd->mode_info_context->mbmi.second_ref_frame > 0
|
|
? &cpi->common.yv12_fb[second_ref_fb_idx] : NULL,
|
|
mi_row, mi_col, xd->scale_factor, xd->scale_factor_uv);
|
|
|
|
vp9_build_inter_predictors_sb(xd, mi_row, mi_col, bsize);
|
|
}
|
|
|
|
if (xd->mode_info_context->mbmi.mode == I4X4_PRED) {
|
|
assert(bsize == BLOCK_SIZE_SB8X8);
|
|
vp9_tokenize_sb(cpi, &x->e_mbd, t, !output_enabled, bsize);
|
|
} else if (!x->skip) {
|
|
vp9_encode_sb(cm, x, bsize);
|
|
vp9_tokenize_sb(cpi, &x->e_mbd, t, !output_enabled, bsize);
|
|
} else {
|
|
// FIXME(rbultje): not tile-aware (mi - 1)
|
|
int mb_skip_context =
|
|
(mi - 1)->mbmi.mb_skip_coeff + (mi - mis)->mbmi.mb_skip_coeff;
|
|
|
|
xd->mode_info_context->mbmi.mb_skip_coeff = 1;
|
|
if (output_enabled)
|
|
cpi->skip_true_count[mb_skip_context]++;
|
|
vp9_reset_sb_tokens_context(xd, bsize);
|
|
}
|
|
|
|
// copy skip flag on all mb_mode_info contexts in this SB
|
|
// if this was a skip at this txfm size
|
|
for (n = 1; n < bw * bh; n++) {
|
|
const int x_idx = n & (bw - 1), y_idx = n >> bwl;
|
|
if (mi_col + x_idx < cm->mi_cols && mi_row + y_idx < cm->mi_rows)
|
|
mi[x_idx + y_idx * mis].mbmi.mb_skip_coeff = mi->mbmi.mb_skip_coeff;
|
|
}
|
|
|
|
if (output_enabled) {
|
|
if (cm->txfm_mode == TX_MODE_SELECT &&
|
|
!(mi->mbmi.mb_skip_coeff ||
|
|
vp9_segfeature_active(xd, segment_id, SEG_LVL_SKIP))) {
|
|
if (bsize >= BLOCK_SIZE_SB32X32) {
|
|
cpi->txfm_count_32x32p[mi->mbmi.txfm_size]++;
|
|
} else if (bsize >= BLOCK_SIZE_MB16X16) {
|
|
cpi->txfm_count_16x16p[mi->mbmi.txfm_size]++;
|
|
} else {
|
|
cpi->txfm_count_8x8p[mi->mbmi.txfm_size]++;
|
|
}
|
|
} else {
|
|
int x, y;
|
|
TX_SIZE sz = (cm->txfm_mode == TX_MODE_SELECT) ? TX_32X32 : cm->txfm_mode;
|
|
|
|
if (sz == TX_32X32 && bsize < BLOCK_SIZE_SB32X32)
|
|
sz = TX_16X16;
|
|
if (sz == TX_16X16 && bsize < BLOCK_SIZE_MB16X16)
|
|
sz = TX_8X8;
|
|
if (sz == TX_8X8 && (xd->mode_info_context->mbmi.mode == SPLITMV ||
|
|
xd->mode_info_context->mbmi.mode == I4X4_PRED))
|
|
sz = TX_4X4;
|
|
|
|
for (y = 0; y < bh; y++) {
|
|
for (x = 0; x < bw; x++) {
|
|
if (mi_col + x < cm->mi_cols && mi_row + y < cm->mi_rows) {
|
|
mi[mis * y + x].mbmi.txfm_size = sz;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|