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Diffstat (limited to 'media/libvpx/libvpx/vp9/encoder/vp9_encodeframe.c')
| -rw-r--r-- | media/libvpx/libvpx/vp9/encoder/vp9_encodeframe.c | 6581 |
1 files changed, 6581 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vp9/encoder/vp9_encodeframe.c b/media/libvpx/libvpx/vp9/encoder/vp9_encodeframe.c new file mode 100644 index 0000000000..46291f4868 --- /dev/null +++ b/media/libvpx/libvpx/vp9/encoder/vp9_encodeframe.c @@ -0,0 +1,6581 @@ +/* + * 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 <float.h> +#include <limits.h> +#include <math.h> +#include <stdio.h> + +#include "./vp9_rtcd.h" +#include "./vpx_dsp_rtcd.h" +#include "./vpx_config.h" + +#include "vpx_dsp/vpx_dsp_common.h" +#include "vpx_ports/mem.h" +#include "vpx_ports/vpx_timer.h" +#include "vpx_ports/system_state.h" + +#if CONFIG_MISMATCH_DEBUG +#include "vpx_util/vpx_debug_util.h" +#endif // CONFIG_MISMATCH_DEBUG + +#include "vp9/common/vp9_common.h" +#include "vp9/common/vp9_entropy.h" +#include "vp9/common/vp9_entropymode.h" +#include "vp9/common/vp9_idct.h" +#include "vp9/common/vp9_mvref_common.h" +#include "vp9/common/vp9_pred_common.h" +#include "vp9/common/vp9_quant_common.h" +#include "vp9/common/vp9_reconintra.h" +#include "vp9/common/vp9_reconinter.h" +#include "vp9/common/vp9_seg_common.h" +#include "vp9/common/vp9_tile_common.h" +#if !CONFIG_REALTIME_ONLY +#include "vp9/encoder/vp9_aq_360.h" +#include "vp9/encoder/vp9_aq_complexity.h" +#endif +#include "vp9/encoder/vp9_aq_cyclicrefresh.h" +#if !CONFIG_REALTIME_ONLY +#include "vp9/encoder/vp9_aq_variance.h" +#endif +#include "vp9/encoder/vp9_encodeframe.h" +#include "vp9/encoder/vp9_encodemb.h" +#include "vp9/encoder/vp9_encodemv.h" +#include "vp9/encoder/vp9_encoder.h" +#include "vp9/encoder/vp9_ethread.h" +#include "vp9/encoder/vp9_extend.h" +#include "vp9/encoder/vp9_multi_thread.h" +#include "vp9/encoder/vp9_partition_models.h" +#include "vp9/encoder/vp9_pickmode.h" +#include "vp9/encoder/vp9_rd.h" +#include "vp9/encoder/vp9_rdopt.h" +#include "vp9/encoder/vp9_segmentation.h" +#include "vp9/encoder/vp9_tokenize.h" + +static void encode_superblock(VP9_COMP *cpi, ThreadData *td, TOKENEXTRA **t, + int output_enabled, int mi_row, int mi_col, + BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx); + +// This is used as a reference when computing the source variance for the +// purpose of activity masking. +// Eventually this should be replaced by custom no-reference routines, +// which will be faster. +static const uint8_t VP9_VAR_OFFS[64] = { + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 +}; + +#if CONFIG_VP9_HIGHBITDEPTH +static const uint16_t VP9_HIGH_VAR_OFFS_8[64] = { + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, + 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 +}; + +static const uint16_t VP9_HIGH_VAR_OFFS_10[64] = { + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, + 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4, 128 * 4 +}; + +static const uint16_t VP9_HIGH_VAR_OFFS_12[64] = { + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, 128 * 16, + 128 * 16 +}; +#endif // CONFIG_VP9_HIGHBITDEPTH + +unsigned int vp9_get_sby_variance(VP9_COMP *cpi, const struct buf_2d *ref, + BLOCK_SIZE bs) { + unsigned int sse; + const unsigned int var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, VP9_VAR_OFFS, 0, &sse); + return var; +} + +#if CONFIG_VP9_HIGHBITDEPTH +unsigned int vp9_high_get_sby_variance(VP9_COMP *cpi, const struct buf_2d *ref, + BLOCK_SIZE bs, int bd) { + unsigned int var, sse; + switch (bd) { + case 10: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_10), 0, &sse); + break; + case 12: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_12), 0, &sse); + break; + case 8: + default: + var = + cpi->fn_ptr[bs].vf(ref->buf, ref->stride, + CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_8), 0, &sse); + break; + } + return var; +} +#endif // CONFIG_VP9_HIGHBITDEPTH + +unsigned int vp9_get_sby_perpixel_variance(VP9_COMP *cpi, + const struct buf_2d *ref, + BLOCK_SIZE bs) { + return ROUND_POWER_OF_TWO(vp9_get_sby_variance(cpi, ref, bs), + num_pels_log2_lookup[bs]); +} + +#if CONFIG_VP9_HIGHBITDEPTH +unsigned int vp9_high_get_sby_perpixel_variance(VP9_COMP *cpi, + const struct buf_2d *ref, + BLOCK_SIZE bs, int bd) { + return (unsigned int)ROUND64_POWER_OF_TWO( + (int64_t)vp9_high_get_sby_variance(cpi, ref, bs, bd), + num_pels_log2_lookup[bs]); +} +#endif // CONFIG_VP9_HIGHBITDEPTH + +static void set_segment_index(VP9_COMP *cpi, MACROBLOCK *const x, int mi_row, + int mi_col, BLOCK_SIZE bsize, int segment_index) { + VP9_COMMON *const cm = &cpi->common; + const struct segmentation *const seg = &cm->seg; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *mi = xd->mi[0]; + + const AQ_MODE aq_mode = cpi->oxcf.aq_mode; + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + + // Initialize the segmentation index as 0. + mi->segment_id = 0; + + // Skip the rest if AQ mode is disabled. + if (!seg->enabled) return; + + switch (aq_mode) { + case CYCLIC_REFRESH_AQ: + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + break; +#if !CONFIG_REALTIME_ONLY + case VARIANCE_AQ: + if (cm->frame_type == KEY_FRAME || cpi->refresh_alt_ref_frame || + cpi->force_update_segmentation || + (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) { + int min_energy; + int max_energy; + // Get sub block energy range + if (bsize >= BLOCK_32X32) { + vp9_get_sub_block_energy(cpi, x, mi_row, mi_col, bsize, &min_energy, + &max_energy); + } else { + min_energy = bsize <= BLOCK_16X16 ? x->mb_energy + : vp9_block_energy(cpi, x, bsize); + } + mi->segment_id = vp9_vaq_segment_id(min_energy); + } else { + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + } + break; + case EQUATOR360_AQ: + if (cm->frame_type == KEY_FRAME || cpi->force_update_segmentation) + mi->segment_id = vp9_360aq_segment_id(mi_row, cm->mi_rows); + else + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + break; +#endif + case LOOKAHEAD_AQ: + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + break; + case PSNR_AQ: mi->segment_id = segment_index; break; + case PERCEPTUAL_AQ: mi->segment_id = x->segment_id; break; + default: + // NO_AQ or PSNR_AQ + break; + } + + // Set segment index if ROI map or active_map is enabled. + if (cpi->roi.enabled || cpi->active_map.enabled) + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + + vp9_init_plane_quantizers(cpi, x); +} + +// Lighter version of set_offsets that only sets the mode info +// pointers. +static INLINE void set_mode_info_offsets(VP9_COMMON *const cm, + MACROBLOCK *const x, + MACROBLOCKD *const xd, int mi_row, + int mi_col) { + const int idx_str = xd->mi_stride * mi_row + mi_col; + xd->mi = cm->mi_grid_visible + idx_str; + xd->mi[0] = cm->mi + idx_str; + x->mbmi_ext = x->mbmi_ext_base + (mi_row * cm->mi_cols + mi_col); +} + +static void set_ssim_rdmult(VP9_COMP *const cpi, MACROBLOCK *const x, + const BLOCK_SIZE bsize, const int mi_row, + const int mi_col, int *const rdmult) { + const VP9_COMMON *const cm = &cpi->common; + + const int bsize_base = BLOCK_16X16; + const int num_8x8_w = num_8x8_blocks_wide_lookup[bsize_base]; + const int num_8x8_h = num_8x8_blocks_high_lookup[bsize_base]; + const int num_cols = (cm->mi_cols + num_8x8_w - 1) / num_8x8_w; + const int num_rows = (cm->mi_rows + num_8x8_h - 1) / num_8x8_h; + const int num_bcols = + (num_8x8_blocks_wide_lookup[bsize] + num_8x8_w - 1) / num_8x8_w; + const int num_brows = + (num_8x8_blocks_high_lookup[bsize] + num_8x8_h - 1) / num_8x8_h; + int row, col; + double num_of_mi = 0.0; + double geom_mean_of_scale = 0.0; + + assert(cpi->oxcf.tuning == VP8_TUNE_SSIM); + + for (row = mi_row / num_8x8_w; + row < num_rows && row < mi_row / num_8x8_w + num_brows; ++row) { + for (col = mi_col / num_8x8_h; + col < num_cols && col < mi_col / num_8x8_h + num_bcols; ++col) { + const int index = row * num_cols + col; + geom_mean_of_scale += log(cpi->mi_ssim_rdmult_scaling_factors[index]); + num_of_mi += 1.0; + } + } + geom_mean_of_scale = exp(geom_mean_of_scale / num_of_mi); + + *rdmult = (int)((double)(*rdmult) * geom_mean_of_scale); + *rdmult = VPXMAX(*rdmult, 0); + set_error_per_bit(x, *rdmult); + vpx_clear_system_state(); +} + +static void set_offsets(VP9_COMP *cpi, const TileInfo *const tile, + MACROBLOCK *const x, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + VP9_COMMON *const cm = &cpi->common; + const VP9EncoderConfig *const oxcf = &cpi->oxcf; + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_width = num_8x8_blocks_wide_lookup[bsize]; + const int mi_height = num_8x8_blocks_high_lookup[bsize]; + MvLimits *const mv_limits = &x->mv_limits; + + set_skip_context(xd, mi_row, mi_col); + + set_mode_info_offsets(cm, x, xd, mi_row, mi_col); + + // Set up destination pointers. + vp9_setup_dst_planes(xd->plane, get_frame_new_buffer(cm), mi_row, mi_col); + + // Set up limit values for MV components. + // Mv beyond the range do not produce new/different prediction block. + mv_limits->row_min = -(((mi_row + mi_height) * MI_SIZE) + VP9_INTERP_EXTEND); + mv_limits->col_min = -(((mi_col + mi_width) * MI_SIZE) + VP9_INTERP_EXTEND); + mv_limits->row_max = (cm->mi_rows - mi_row) * MI_SIZE + VP9_INTERP_EXTEND; + mv_limits->col_max = (cm->mi_cols - mi_col) * MI_SIZE + VP9_INTERP_EXTEND; + + // Set up distance of MB to edge of frame in 1/8th pel units. + assert(!(mi_col & (mi_width - 1)) && !(mi_row & (mi_height - 1))); + set_mi_row_col(xd, tile, mi_row, mi_height, mi_col, mi_width, cm->mi_rows, + cm->mi_cols); + + // Set up source buffers. + vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col); + + // R/D setup. + x->rddiv = cpi->rd.RDDIV; + x->rdmult = cpi->rd.RDMULT; + if (oxcf->tuning == VP8_TUNE_SSIM) { + set_ssim_rdmult(cpi, x, bsize, mi_row, mi_col, &x->rdmult); + } + + // required by vp9_append_sub8x8_mvs_for_idx() and vp9_find_best_ref_mvs() + xd->tile = *tile; +} + +static void duplicate_mode_info_in_sb(VP9_COMMON *cm, MACROBLOCKD *xd, + int mi_row, int mi_col, + BLOCK_SIZE bsize) { + const int block_width = + VPXMIN(num_8x8_blocks_wide_lookup[bsize], cm->mi_cols - mi_col); + const int block_height = + VPXMIN(num_8x8_blocks_high_lookup[bsize], cm->mi_rows - mi_row); + const int mi_stride = xd->mi_stride; + MODE_INFO *const src_mi = xd->mi[0]; + int i, j; + + for (j = 0; j < block_height; ++j) + for (i = 0; i < block_width; ++i) xd->mi[j * mi_stride + i] = src_mi; +} + +static void set_block_size(VP9_COMP *const cpi, MACROBLOCK *const x, + MACROBLOCKD *const xd, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + if (cpi->common.mi_cols > mi_col && cpi->common.mi_rows > mi_row) { + set_mode_info_offsets(&cpi->common, x, xd, mi_row, mi_col); + xd->mi[0]->sb_type = bsize; + } +} + +typedef struct { + // This struct is used for computing variance in choose_partitioning(), where + // the max number of samples within a superblock is 16x16 (with 4x4 avg). Even + // in high bitdepth, uint32_t is enough for sum_square_error (2^12 * 2^12 * 16 + // * 16 = 2^32). + uint32_t sum_square_error; + int32_t sum_error; + int log2_count; + int variance; +} Var; + +typedef struct { + Var none; + Var horz[2]; + Var vert[2]; +} partition_variance; + +typedef struct { + partition_variance part_variances; + Var split[4]; +} v4x4; + +typedef struct { + partition_variance part_variances; + v4x4 split[4]; +} v8x8; + +typedef struct { + partition_variance part_variances; + v8x8 split[4]; +} v16x16; + +typedef struct { + partition_variance part_variances; + v16x16 split[4]; +} v32x32; + +typedef struct { + partition_variance part_variances; + v32x32 split[4]; +} v64x64; + +typedef struct { + partition_variance *part_variances; + Var *split[4]; +} variance_node; + +typedef enum { + V16X16, + V32X32, + V64X64, +} TREE_LEVEL; + +static void tree_to_node(void *data, BLOCK_SIZE bsize, variance_node *node) { + int i; + node->part_variances = NULL; + switch (bsize) { + case BLOCK_64X64: { + v64x64 *vt = (v64x64 *)data; + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) + node->split[i] = &vt->split[i].part_variances.none; + break; + } + case BLOCK_32X32: { + v32x32 *vt = (v32x32 *)data; + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) + node->split[i] = &vt->split[i].part_variances.none; + break; + } + case BLOCK_16X16: { + v16x16 *vt = (v16x16 *)data; + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) + node->split[i] = &vt->split[i].part_variances.none; + break; + } + case BLOCK_8X8: { + v8x8 *vt = (v8x8 *)data; + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) + node->split[i] = &vt->split[i].part_variances.none; + break; + } + default: { + v4x4 *vt = (v4x4 *)data; + assert(bsize == BLOCK_4X4); + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) node->split[i] = &vt->split[i]; + break; + } + } +} + +// Set variance values given sum square error, sum error, count. +static void fill_variance(uint32_t s2, int32_t s, int c, Var *v) { + v->sum_square_error = s2; + v->sum_error = s; + v->log2_count = c; +} + +static void get_variance(Var *v) { + v->variance = + (int)(256 * (v->sum_square_error - + (uint32_t)(((int64_t)v->sum_error * v->sum_error) >> + v->log2_count)) >> + v->log2_count); +} + +static void sum_2_variances(const Var *a, const Var *b, Var *r) { + assert(a->log2_count == b->log2_count); + fill_variance(a->sum_square_error + b->sum_square_error, + a->sum_error + b->sum_error, a->log2_count + 1, r); +} + +static void fill_variance_tree(void *data, BLOCK_SIZE bsize) { + variance_node node; + memset(&node, 0, sizeof(node)); + tree_to_node(data, bsize, &node); + sum_2_variances(node.split[0], node.split[1], &node.part_variances->horz[0]); + sum_2_variances(node.split[2], node.split[3], &node.part_variances->horz[1]); + sum_2_variances(node.split[0], node.split[2], &node.part_variances->vert[0]); + sum_2_variances(node.split[1], node.split[3], &node.part_variances->vert[1]); + sum_2_variances(&node.part_variances->vert[0], &node.part_variances->vert[1], + &node.part_variances->none); +} + +static int set_vt_partitioning(VP9_COMP *cpi, MACROBLOCK *const x, + MACROBLOCKD *const xd, void *data, + BLOCK_SIZE bsize, int mi_row, int mi_col, + int64_t threshold, BLOCK_SIZE bsize_min, + int force_split) { + VP9_COMMON *const cm = &cpi->common; + variance_node vt; + const int block_width = num_8x8_blocks_wide_lookup[bsize]; + const int block_height = num_8x8_blocks_high_lookup[bsize]; + + assert(block_height == block_width); + tree_to_node(data, bsize, &vt); + + if (force_split == 1) return 0; + + // For bsize=bsize_min (16x16/8x8 for 8x8/4x4 downsampling), select if + // variance is below threshold, otherwise split will be selected. + // No check for vert/horiz split as too few samples for variance. + if (bsize == bsize_min) { + // Variance already computed to set the force_split. + if (frame_is_intra_only(cm)) get_variance(&vt.part_variances->none); + if (mi_col + block_width / 2 < cm->mi_cols && + mi_row + block_height / 2 < cm->mi_rows && + vt.part_variances->none.variance < threshold) { + set_block_size(cpi, x, xd, mi_row, mi_col, bsize); + return 1; + } + return 0; + } else if (bsize > bsize_min) { + // Variance already computed to set the force_split. + if (frame_is_intra_only(cm)) get_variance(&vt.part_variances->none); + // For key frame: take split for bsize above 32X32 or very high variance. + if (frame_is_intra_only(cm) && + (bsize > BLOCK_32X32 || + vt.part_variances->none.variance > (threshold << 4))) { + return 0; + } + // If variance is low, take the bsize (no split). + if (mi_col + block_width / 2 < cm->mi_cols && + mi_row + block_height / 2 < cm->mi_rows && + vt.part_variances->none.variance < threshold) { + set_block_size(cpi, x, xd, mi_row, mi_col, bsize); + return 1; + } + + // Check vertical split. + if (mi_row + block_height / 2 < cm->mi_rows) { + BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_VERT); + get_variance(&vt.part_variances->vert[0]); + get_variance(&vt.part_variances->vert[1]); + if (vt.part_variances->vert[0].variance < threshold && + vt.part_variances->vert[1].variance < threshold && + get_plane_block_size(subsize, &xd->plane[1]) < BLOCK_INVALID) { + set_block_size(cpi, x, xd, mi_row, mi_col, subsize); + set_block_size(cpi, x, xd, mi_row, mi_col + block_width / 2, subsize); + return 1; + } + } + // Check horizontal split. + if (mi_col + block_width / 2 < cm->mi_cols) { + BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_HORZ); + get_variance(&vt.part_variances->horz[0]); + get_variance(&vt.part_variances->horz[1]); + if (vt.part_variances->horz[0].variance < threshold && + vt.part_variances->horz[1].variance < threshold && + get_plane_block_size(subsize, &xd->plane[1]) < BLOCK_INVALID) { + set_block_size(cpi, x, xd, mi_row, mi_col, subsize); + set_block_size(cpi, x, xd, mi_row + block_height / 2, mi_col, subsize); + return 1; + } + } + + return 0; + } + return 0; +} + +static int64_t scale_part_thresh_sumdiff(int64_t threshold_base, int speed, + int width, int height, + int content_state) { + if (speed >= 8) { + if (width <= 640 && height <= 480) + return (5 * threshold_base) >> 2; + else if ((content_state == kLowSadLowSumdiff) || + (content_state == kHighSadLowSumdiff) || + (content_state == kLowVarHighSumdiff)) + return (5 * threshold_base) >> 2; + } else if (speed == 7) { + if ((content_state == kLowSadLowSumdiff) || + (content_state == kHighSadLowSumdiff) || + (content_state == kLowVarHighSumdiff)) { + return (5 * threshold_base) >> 2; + } + } + return threshold_base; +} + +// Set the variance split thresholds for following the block sizes: +// 0 - threshold_64x64, 1 - threshold_32x32, 2 - threshold_16x16, +// 3 - vbp_threshold_8x8. vbp_threshold_8x8 (to split to 4x4 partition) is +// currently only used on key frame. +static void set_vbp_thresholds(VP9_COMP *cpi, int64_t thresholds[], int q, + int content_state) { + VP9_COMMON *const cm = &cpi->common; + const int is_key_frame = frame_is_intra_only(cm); + const int threshold_multiplier = + is_key_frame ? 20 : cpi->sf.variance_part_thresh_mult; + int64_t threshold_base = + (int64_t)(threshold_multiplier * cpi->y_dequant[q][1]); + + if (is_key_frame) { + thresholds[0] = threshold_base; + thresholds[1] = threshold_base >> 2; + thresholds[2] = threshold_base >> 2; + thresholds[3] = threshold_base << 2; + } else { + // Increase base variance threshold based on estimated noise level. + if (cpi->noise_estimate.enabled && cm->width >= 640 && cm->height >= 480) { + NOISE_LEVEL noise_level = + vp9_noise_estimate_extract_level(&cpi->noise_estimate); + if (noise_level == kHigh) + threshold_base = 3 * threshold_base; + else if (noise_level == kMedium) + threshold_base = threshold_base << 1; + else if (noise_level < kLow) + threshold_base = (7 * threshold_base) >> 3; + } +#if CONFIG_VP9_TEMPORAL_DENOISING + if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc(cpi) && + cpi->oxcf.speed > 5 && cpi->denoiser.denoising_level >= kDenLow) + threshold_base = + vp9_scale_part_thresh(threshold_base, cpi->denoiser.denoising_level, + content_state, cpi->svc.temporal_layer_id); + else + threshold_base = + scale_part_thresh_sumdiff(threshold_base, cpi->oxcf.speed, cm->width, + cm->height, content_state); +#else + // Increase base variance threshold based on content_state/sum_diff level. + threshold_base = scale_part_thresh_sumdiff( + threshold_base, cpi->oxcf.speed, cm->width, cm->height, content_state); +#endif + thresholds[0] = threshold_base; + thresholds[2] = threshold_base << cpi->oxcf.speed; + if (cm->width >= 1280 && cm->height >= 720 && cpi->oxcf.speed < 7) + thresholds[2] = thresholds[2] << 1; + if (cm->width <= 352 && cm->height <= 288) { + thresholds[0] = threshold_base >> 3; + thresholds[1] = threshold_base >> 1; + thresholds[2] = threshold_base << 3; + if (cpi->rc.avg_frame_qindex[INTER_FRAME] > 220) + thresholds[2] = thresholds[2] << 2; + else if (cpi->rc.avg_frame_qindex[INTER_FRAME] > 200) + thresholds[2] = thresholds[2] << 1; + } else if (cm->width < 1280 && cm->height < 720) { + thresholds[1] = (5 * threshold_base) >> 2; + } else if (cm->width < 1920 && cm->height < 1080) { + thresholds[1] = threshold_base << 1; + } else { + thresholds[1] = (5 * threshold_base) >> 1; + } + if (cpi->sf.disable_16x16part_nonkey) thresholds[2] = INT64_MAX; + } +} + +void vp9_set_variance_partition_thresholds(VP9_COMP *cpi, int q, + int content_state) { + VP9_COMMON *const cm = &cpi->common; + SPEED_FEATURES *const sf = &cpi->sf; + const int is_key_frame = frame_is_intra_only(cm); + if (sf->partition_search_type != VAR_BASED_PARTITION && + sf->partition_search_type != REFERENCE_PARTITION) { + return; + } else { + set_vbp_thresholds(cpi, cpi->vbp_thresholds, q, content_state); + // The thresholds below are not changed locally. + if (is_key_frame) { + cpi->vbp_threshold_sad = 0; + cpi->vbp_threshold_copy = 0; + cpi->vbp_bsize_min = BLOCK_8X8; + } else { + if (cm->width <= 352 && cm->height <= 288) + cpi->vbp_threshold_sad = 10; + else + cpi->vbp_threshold_sad = (cpi->y_dequant[q][1] << 1) > 1000 + ? (cpi->y_dequant[q][1] << 1) + : 1000; + cpi->vbp_bsize_min = BLOCK_16X16; + if (cm->width <= 352 && cm->height <= 288) + cpi->vbp_threshold_copy = 4000; + else if (cm->width <= 640 && cm->height <= 360) + cpi->vbp_threshold_copy = 8000; + else + cpi->vbp_threshold_copy = (cpi->y_dequant[q][1] << 3) > 8000 + ? (cpi->y_dequant[q][1] << 3) + : 8000; + if (cpi->rc.high_source_sad || + (cpi->use_svc && cpi->svc.high_source_sad_superframe)) { + cpi->vbp_threshold_sad = 0; + cpi->vbp_threshold_copy = 0; + } + } + cpi->vbp_threshold_minmax = 15 + (q >> 3); + } +} + +// Compute the minmax over the 8x8 subblocks. +static int compute_minmax_8x8(const uint8_t *s, int sp, const uint8_t *d, + int dp, int x16_idx, int y16_idx, +#if CONFIG_VP9_HIGHBITDEPTH + int highbd_flag, +#endif + int pixels_wide, int pixels_high) { + int k; + int minmax_max = 0; + int minmax_min = 255; + // Loop over the 4 8x8 subblocks. + for (k = 0; k < 4; k++) { + int x8_idx = x16_idx + ((k & 1) << 3); + int y8_idx = y16_idx + ((k >> 1) << 3); + int min = 0; + int max = 0; + if (x8_idx < pixels_wide && y8_idx < pixels_high) { +#if CONFIG_VP9_HIGHBITDEPTH + if (highbd_flag & YV12_FLAG_HIGHBITDEPTH) { + vpx_highbd_minmax_8x8(s + y8_idx * sp + x8_idx, sp, + d + y8_idx * dp + x8_idx, dp, &min, &max); + } else { + vpx_minmax_8x8(s + y8_idx * sp + x8_idx, sp, d + y8_idx * dp + x8_idx, + dp, &min, &max); + } +#else + vpx_minmax_8x8(s + y8_idx * sp + x8_idx, sp, d + y8_idx * dp + x8_idx, dp, + &min, &max); +#endif + if ((max - min) > minmax_max) minmax_max = (max - min); + if ((max - min) < minmax_min) minmax_min = (max - min); + } + } + return (minmax_max - minmax_min); +} + +static void fill_variance_4x4avg(const uint8_t *s, int sp, const uint8_t *d, + int dp, int x8_idx, int y8_idx, v8x8 *vst, +#if CONFIG_VP9_HIGHBITDEPTH + int highbd_flag, +#endif + int pixels_wide, int pixels_high, + int is_key_frame) { + int k; + for (k = 0; k < 4; k++) { + int x4_idx = x8_idx + ((k & 1) << 2); + int y4_idx = y8_idx + ((k >> 1) << 2); + unsigned int sse = 0; + int sum = 0; + if (x4_idx < pixels_wide && y4_idx < pixels_high) { + int s_avg; + int d_avg = 128; +#if CONFIG_VP9_HIGHBITDEPTH + if (highbd_flag & YV12_FLAG_HIGHBITDEPTH) { + s_avg = vpx_highbd_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) + d_avg = vpx_highbd_avg_4x4(d + y4_idx * dp + x4_idx, dp); + } else { + s_avg = vpx_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) d_avg = vpx_avg_4x4(d + y4_idx * dp + x4_idx, dp); + } +#else + s_avg = vpx_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) d_avg = vpx_avg_4x4(d + y4_idx * dp + x4_idx, dp); +#endif + sum = s_avg - d_avg; + sse = sum * sum; + } + fill_variance(sse, sum, 0, &vst->split[k].part_variances.none); + } +} + +static void fill_variance_8x8avg(const uint8_t *s, int sp, const uint8_t *d, + int dp, int x16_idx, int y16_idx, v16x16 *vst, +#if CONFIG_VP9_HIGHBITDEPTH + int highbd_flag, +#endif + int pixels_wide, int pixels_high, + int is_key_frame) { + int k; + for (k = 0; k < 4; k++) { + int x8_idx = x16_idx + ((k & 1) << 3); + int y8_idx = y16_idx + ((k >> 1) << 3); + unsigned int sse = 0; + int sum = 0; + if (x8_idx < pixels_wide && y8_idx < pixels_high) { + int s_avg; + int d_avg = 128; +#if CONFIG_VP9_HIGHBITDEPTH + if (highbd_flag & YV12_FLAG_HIGHBITDEPTH) { + s_avg = vpx_highbd_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) + d_avg = vpx_highbd_avg_8x8(d + y8_idx * dp + x8_idx, dp); + } else { + s_avg = vpx_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) d_avg = vpx_avg_8x8(d + y8_idx * dp + x8_idx, dp); + } +#else + s_avg = vpx_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) d_avg = vpx_avg_8x8(d + y8_idx * dp + x8_idx, dp); +#endif + sum = s_avg - d_avg; + sse = sum * sum; + } + fill_variance(sse, sum, 0, &vst->split[k].part_variances.none); + } +} + +// Check if most of the superblock is skin content, and if so, force split to +// 32x32, and set x->sb_is_skin for use in mode selection. +static int skin_sb_split(VP9_COMP *cpi, const int low_res, int mi_row, + int mi_col, int *force_split) { + VP9_COMMON *const cm = &cpi->common; +#if CONFIG_VP9_HIGHBITDEPTH + if (cm->use_highbitdepth) return 0; +#endif + // Avoid checking superblocks on/near boundary and avoid low resolutions. + // Note superblock may still pick 64X64 if y_sad is very small + // (i.e., y_sad < cpi->vbp_threshold_sad) below. For now leave this as is. + if (!low_res && (mi_col >= 8 && mi_col + 8 < cm->mi_cols && mi_row >= 8 && + mi_row + 8 < cm->mi_rows)) { + int num_16x16_skin = 0; + int num_16x16_nonskin = 0; + const int block_index = mi_row * cm->mi_cols + mi_col; + const int bw = num_8x8_blocks_wide_lookup[BLOCK_64X64]; + const int bh = num_8x8_blocks_high_lookup[BLOCK_64X64]; + const int xmis = VPXMIN(cm->mi_cols - mi_col, bw); + const int ymis = VPXMIN(cm->mi_rows - mi_row, bh); + // Loop through the 16x16 sub-blocks. + int i, j; + for (i = 0; i < ymis; i += 2) { + for (j = 0; j < xmis; j += 2) { + int bl_index = block_index + i * cm->mi_cols + j; + int is_skin = cpi->skin_map[bl_index]; + num_16x16_skin += is_skin; + num_16x16_nonskin += (1 - is_skin); + if (num_16x16_nonskin > 3) { + // Exit loop if at least 4 of the 16x16 blocks are not skin. + i = ymis; + break; + } + } + } + if (num_16x16_skin > 12) { + *force_split = 1; + return 1; + } + } + return 0; +} + +static void set_low_temp_var_flag(VP9_COMP *cpi, MACROBLOCK *x, MACROBLOCKD *xd, + v64x64 *vt, int64_t thresholds[], + MV_REFERENCE_FRAME ref_frame_partition, + int mi_col, int mi_row) { + int i, j; + VP9_COMMON *const cm = &cpi->common; + const int mv_thr = cm->width > 640 ? 8 : 4; + // Check temporal variance for bsize >= 16x16, if LAST_FRAME was selected and + // int_pro mv is small. If the temporal variance is small set the flag + // variance_low for the block. The variance threshold can be adjusted, the + // higher the more aggressive. + if (ref_frame_partition == LAST_FRAME && + (cpi->sf.short_circuit_low_temp_var == 1 || + (xd->mi[0]->mv[0].as_mv.col < mv_thr && + xd->mi[0]->mv[0].as_mv.col > -mv_thr && + xd->mi[0]->mv[0].as_mv.row < mv_thr && + xd->mi[0]->mv[0].as_mv.row > -mv_thr))) { + if (xd->mi[0]->sb_type == BLOCK_64X64) { + if ((vt->part_variances).none.variance < (thresholds[0] >> 1)) + x->variance_low[0] = 1; + } else if (xd->mi[0]->sb_type == BLOCK_64X32) { + for (i = 0; i < 2; i++) { + if (vt->part_variances.horz[i].variance < (thresholds[0] >> 2)) + x->variance_low[i + 1] = 1; + } + } else if (xd->mi[0]->sb_type == BLOCK_32X64) { + for (i = 0; i < 2; i++) { + if (vt->part_variances.vert[i].variance < (thresholds[0] >> 2)) + x->variance_low[i + 3] = 1; + } + } else { + for (i = 0; i < 4; i++) { + const int idx[4][2] = { { 0, 0 }, { 0, 4 }, { 4, 0 }, { 4, 4 } }; + const int idx_str = + cm->mi_stride * (mi_row + idx[i][0]) + mi_col + idx[i][1]; + MODE_INFO **this_mi = cm->mi_grid_visible + idx_str; + + if (cm->mi_cols <= mi_col + idx[i][1] || + cm->mi_rows <= mi_row + idx[i][0]) + continue; + + if ((*this_mi)->sb_type == BLOCK_32X32) { + int64_t threshold_32x32 = (cpi->sf.short_circuit_low_temp_var == 1 || + cpi->sf.short_circuit_low_temp_var == 3) + ? ((5 * thresholds[1]) >> 3) + : (thresholds[1] >> 1); + if (vt->split[i].part_variances.none.variance < threshold_32x32) + x->variance_low[i + 5] = 1; + } else if (cpi->sf.short_circuit_low_temp_var >= 2) { + // For 32x16 and 16x32 blocks, the flag is set on each 16x16 block + // inside. + if ((*this_mi)->sb_type == BLOCK_16X16 || + (*this_mi)->sb_type == BLOCK_32X16 || + (*this_mi)->sb_type == BLOCK_16X32) { + for (j = 0; j < 4; j++) { + if (vt->split[i].split[j].part_variances.none.variance < + (thresholds[2] >> 8)) + x->variance_low[(i << 2) + j + 9] = 1; + } + } + } + } + } + } +} + +static void copy_partitioning_helper(VP9_COMP *cpi, MACROBLOCK *x, + MACROBLOCKD *xd, BLOCK_SIZE bsize, + int mi_row, int mi_col) { + VP9_COMMON *const cm = &cpi->common; + BLOCK_SIZE *prev_part = cpi->prev_partition; + int start_pos = mi_row * cm->mi_stride + mi_col; + + const int bsl = b_width_log2_lookup[bsize]; + const int bs = (1 << bsl) >> 2; + BLOCK_SIZE subsize; + PARTITION_TYPE partition; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + partition = partition_lookup[bsl][prev_part[start_pos]]; + subsize = get_subsize(bsize, partition); + + if (subsize < BLOCK_8X8) { + set_block_size(cpi, x, xd, mi_row, mi_col, bsize); + } else { + switch (partition) { + case PARTITION_NONE: + set_block_size(cpi, x, xd, mi_row, mi_col, bsize); + break; + case PARTITION_HORZ: + set_block_size(cpi, x, xd, mi_row, mi_col, subsize); + set_block_size(cpi, x, xd, mi_row + bs, mi_col, subsize); + break; + case PARTITION_VERT: + set_block_size(cpi, x, xd, mi_row, mi_col, subsize); + set_block_size(cpi, x, xd, mi_row, mi_col + bs, subsize); + break; + default: + assert(partition == PARTITION_SPLIT); + copy_partitioning_helper(cpi, x, xd, subsize, mi_row, mi_col); + copy_partitioning_helper(cpi, x, xd, subsize, mi_row + bs, mi_col); + copy_partitioning_helper(cpi, x, xd, subsize, mi_row, mi_col + bs); + copy_partitioning_helper(cpi, x, xd, subsize, mi_row + bs, mi_col + bs); + break; + } + } +} + +static int copy_partitioning(VP9_COMP *cpi, MACROBLOCK *x, MACROBLOCKD *xd, + int mi_row, int mi_col, int segment_id, + int sb_offset) { + int svc_copy_allowed = 1; + int frames_since_key_thresh = 1; + if (cpi->use_svc) { + // For SVC, don't allow copy if base spatial layer is key frame, or if + // frame is not a temporal enhancement layer frame. + int layer = LAYER_IDS_TO_IDX(0, cpi->svc.temporal_layer_id, + cpi->svc.number_temporal_layers); + const LAYER_CONTEXT *lc = &cpi->svc.layer_context[layer]; + if (lc->is_key_frame || !cpi->svc.non_reference_frame) svc_copy_allowed = 0; + frames_since_key_thresh = cpi->svc.number_spatial_layers << 1; + } + if (cpi->rc.frames_since_key > frames_since_key_thresh && svc_copy_allowed && + !cpi->resize_pending && segment_id == CR_SEGMENT_ID_BASE && + cpi->prev_segment_id[sb_offset] == CR_SEGMENT_ID_BASE && + cpi->copied_frame_cnt[sb_offset] < cpi->max_copied_frame) { + if (cpi->prev_partition != NULL) { + copy_partitioning_helper(cpi, x, xd, BLOCK_64X64, mi_row, mi_col); + cpi->copied_frame_cnt[sb_offset] += 1; + memcpy(x->variance_low, &(cpi->prev_variance_low[sb_offset * 25]), + sizeof(x->variance_low)); + return 1; + } + } + + return 0; +} + +static int scale_partitioning_svc(VP9_COMP *cpi, MACROBLOCK *x, MACROBLOCKD *xd, + BLOCK_SIZE bsize, int mi_row, int mi_col, + int mi_row_high, int mi_col_high) { + VP9_COMMON *const cm = &cpi->common; + SVC *const svc = &cpi->svc; + BLOCK_SIZE *prev_part = svc->prev_partition_svc; + // Variables with _high are for higher resolution. + int bsize_high = 0; + int subsize_high = 0; + const int bsl_high = b_width_log2_lookup[bsize]; + const int bs_high = (1 << bsl_high) >> 2; + const int has_rows = (mi_row_high + bs_high) < cm->mi_rows; + const int has_cols = (mi_col_high + bs_high) < cm->mi_cols; + + const int row_boundary_block_scale_factor[BLOCK_SIZES] = { 13, 13, 13, 1, 0, + 1, 1, 0, 1, 1, + 0, 1, 0 }; + const int col_boundary_block_scale_factor[BLOCK_SIZES] = { 13, 13, 13, 2, 2, + 0, 2, 2, 0, 2, + 2, 0, 0 }; + int start_pos; + BLOCK_SIZE bsize_low; + PARTITION_TYPE partition_high; + + if (mi_row_high >= cm->mi_rows || mi_col_high >= cm->mi_cols) return 0; + if (mi_row >= svc->mi_rows[svc->spatial_layer_id - 1] || + mi_col >= svc->mi_cols[svc->spatial_layer_id - 1]) + return 0; + + // Find corresponding (mi_col/mi_row) block down-scaled by 2x2. + start_pos = mi_row * (svc->mi_stride[svc->spatial_layer_id - 1]) + mi_col; + bsize_low = prev_part[start_pos]; + // The block size is too big for boundaries. Do variance based partitioning. + if ((!has_rows || !has_cols) && bsize_low > BLOCK_16X16) return 1; + + // For reference frames: return 1 (do variance-based partitioning) if the + // superblock is not low source sad and lower-resoln bsize is below 32x32. + if (!cpi->svc.non_reference_frame && !x->skip_low_source_sad && + bsize_low < BLOCK_32X32) + return 1; + + // Scale up block size by 2x2. Force 64x64 for size larger than 32x32. + if (bsize_low < BLOCK_32X32) { + bsize_high = bsize_low + 3; + } else if (bsize_low >= BLOCK_32X32) { + bsize_high = BLOCK_64X64; + } + // Scale up blocks on boundary. + if (!has_cols && has_rows) { + bsize_high = bsize_low + row_boundary_block_scale_factor[bsize_low]; + } else if (has_cols && !has_rows) { + bsize_high = bsize_low + col_boundary_block_scale_factor[bsize_low]; + } else if (!has_cols && !has_rows) { + bsize_high = bsize_low; + } + + partition_high = partition_lookup[bsl_high][bsize_high]; + subsize_high = get_subsize(bsize, partition_high); + + if (subsize_high < BLOCK_8X8) { + set_block_size(cpi, x, xd, mi_row_high, mi_col_high, bsize_high); + } else { + const int bsl = b_width_log2_lookup[bsize]; + const int bs = (1 << bsl) >> 2; + switch (partition_high) { + case PARTITION_NONE: + set_block_size(cpi, x, xd, mi_row_high, mi_col_high, bsize_high); + break; + case PARTITION_HORZ: + set_block_size(cpi, x, xd, mi_row_high, mi_col_high, subsize_high); + if (subsize_high < BLOCK_64X64) + set_block_size(cpi, x, xd, mi_row_high + bs_high, mi_col_high, + subsize_high); + break; + case PARTITION_VERT: + set_block_size(cpi, x, xd, mi_row_high, mi_col_high, subsize_high); + if (subsize_high < BLOCK_64X64) + set_block_size(cpi, x, xd, mi_row_high, mi_col_high + bs_high, + subsize_high); + break; + default: + assert(partition_high == PARTITION_SPLIT); + if (scale_partitioning_svc(cpi, x, xd, subsize_high, mi_row, mi_col, + mi_row_high, mi_col_high)) + return 1; + if (scale_partitioning_svc(cpi, x, xd, subsize_high, mi_row + (bs >> 1), + mi_col, mi_row_high + bs_high, mi_col_high)) + return 1; + if (scale_partitioning_svc(cpi, x, xd, subsize_high, mi_row, + mi_col + (bs >> 1), mi_row_high, + mi_col_high + bs_high)) + return 1; + if (scale_partitioning_svc(cpi, x, xd, subsize_high, mi_row + (bs >> 1), + mi_col + (bs >> 1), mi_row_high + bs_high, + mi_col_high + bs_high)) + return 1; + break; + } + } + + return 0; +} + +static void update_partition_svc(VP9_COMP *cpi, BLOCK_SIZE bsize, int mi_row, + int mi_col) { + VP9_COMMON *const cm = &cpi->common; + BLOCK_SIZE *prev_part = cpi->svc.prev_partition_svc; + int start_pos = mi_row * cm->mi_stride + mi_col; + const int bsl = b_width_log2_lookup[bsize]; + const int bs = (1 << bsl) >> 2; + BLOCK_SIZE subsize; + PARTITION_TYPE partition; + const MODE_INFO *mi = NULL; + int xx, yy; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + mi = cm->mi_grid_visible[start_pos]; + partition = partition_lookup[bsl][mi->sb_type]; + subsize = get_subsize(bsize, partition); + if (subsize < BLOCK_8X8) { + prev_part[start_pos] = bsize; + } else { + switch (partition) { + case PARTITION_NONE: + prev_part[start_pos] = bsize; + if (bsize == BLOCK_64X64) { + for (xx = 0; xx < 8; xx += 4) + for (yy = 0; yy < 8; yy += 4) { + if ((mi_row + xx < cm->mi_rows) && (mi_col + yy < cm->mi_cols)) + prev_part[start_pos + xx * cm->mi_stride + yy] = bsize; + } + } + break; + case PARTITION_HORZ: + prev_part[start_pos] = subsize; + if (mi_row + bs < cm->mi_rows) + prev_part[start_pos + bs * cm->mi_stride] = subsize; + break; + case PARTITION_VERT: + prev_part[start_pos] = subsize; + if (mi_col + bs < cm->mi_cols) prev_part[start_pos + bs] = subsize; + break; + default: + assert(partition == PARTITION_SPLIT); + update_partition_svc(cpi, subsize, mi_row, mi_col); + update_partition_svc(cpi, subsize, mi_row + bs, mi_col); + update_partition_svc(cpi, subsize, mi_row, mi_col + bs); + update_partition_svc(cpi, subsize, mi_row + bs, mi_col + bs); + break; + } + } +} + +static void update_prev_partition_helper(VP9_COMP *cpi, BLOCK_SIZE bsize, + int mi_row, int mi_col) { + VP9_COMMON *const cm = &cpi->common; + BLOCK_SIZE *prev_part = cpi->prev_partition; + int start_pos = mi_row * cm->mi_stride + mi_col; + const int bsl = b_width_log2_lookup[bsize]; + const int bs = (1 << bsl) >> 2; + BLOCK_SIZE subsize; + PARTITION_TYPE partition; + const MODE_INFO *mi = NULL; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + mi = cm->mi_grid_visible[start_pos]; + partition = partition_lookup[bsl][mi->sb_type]; + subsize = get_subsize(bsize, partition); + if (subsize < BLOCK_8X8) { + prev_part[start_pos] = bsize; + } else { + switch (partition) { + case PARTITION_NONE: prev_part[start_pos] = bsize; break; + case PARTITION_HORZ: + prev_part[start_pos] = subsize; + if (mi_row + bs < cm->mi_rows) + prev_part[start_pos + bs * cm->mi_stride] = subsize; + break; + case PARTITION_VERT: + prev_part[start_pos] = subsize; + if (mi_col + bs < cm->mi_cols) prev_part[start_pos + bs] = subsize; + break; + default: + assert(partition == PARTITION_SPLIT); + update_prev_partition_helper(cpi, subsize, mi_row, mi_col); + update_prev_partition_helper(cpi, subsize, mi_row + bs, mi_col); + update_prev_partition_helper(cpi, subsize, mi_row, mi_col + bs); + update_prev_partition_helper(cpi, subsize, mi_row + bs, mi_col + bs); + break; + } + } +} + +static void update_prev_partition(VP9_COMP *cpi, MACROBLOCK *x, int segment_id, + int mi_row, int mi_col, int sb_offset) { + update_prev_partition_helper(cpi, BLOCK_64X64, mi_row, mi_col); + cpi->prev_segment_id[sb_offset] = segment_id; + memcpy(&(cpi->prev_variance_low[sb_offset * 25]), x->variance_low, + sizeof(x->variance_low)); + // Reset the counter for copy partitioning + cpi->copied_frame_cnt[sb_offset] = 0; +} + +static void chroma_check(VP9_COMP *cpi, MACROBLOCK *x, int bsize, + unsigned int y_sad, int is_key_frame, + int scene_change_detected) { + int i; + MACROBLOCKD *xd = &x->e_mbd; + int shift = 2; + + if (is_key_frame) return; + + // For speed > 8, avoid the chroma check if y_sad is above threshold. + if (cpi->oxcf.speed > 8) { + if (y_sad > cpi->vbp_thresholds[1] && + (!cpi->noise_estimate.enabled || + vp9_noise_estimate_extract_level(&cpi->noise_estimate) < kMedium)) + return; + } + + if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && scene_change_detected) + shift = 5; + + for (i = 1; i <= 2; ++i) { + unsigned int uv_sad = UINT_MAX; + struct macroblock_plane *p = &x->plane[i]; + struct macroblockd_plane *pd = &xd->plane[i]; + const BLOCK_SIZE bs = get_plane_block_size(bsize, pd); + + if (bs != BLOCK_INVALID) + uv_sad = cpi->fn_ptr[bs].sdf(p->src.buf, p->src.stride, pd->dst.buf, + pd->dst.stride); + + // TODO(marpan): Investigate if we should lower this threshold if + // superblock is detected as skin. + x->color_sensitivity[i - 1] = uv_sad > (y_sad >> shift); + } +} + +static uint64_t avg_source_sad(VP9_COMP *cpi, MACROBLOCK *x, int shift, + int sb_offset) { + unsigned int tmp_sse; + uint64_t tmp_sad; + unsigned int tmp_variance; + const BLOCK_SIZE bsize = BLOCK_64X64; + uint8_t *src_y = cpi->Source->y_buffer; + int src_ystride = cpi->Source->y_stride; + uint8_t *last_src_y = cpi->Last_Source->y_buffer; + int last_src_ystride = cpi->Last_Source->y_stride; + uint64_t avg_source_sad_threshold = 10000; + uint64_t avg_source_sad_threshold2 = 12000; +#if CONFIG_VP9_HIGHBITDEPTH + if (cpi->common.use_highbitdepth) return 0; +#endif + src_y += shift; + last_src_y += shift; + tmp_sad = + cpi->fn_ptr[bsize].sdf(src_y, src_ystride, last_src_y, last_src_ystride); + tmp_variance = vpx_variance64x64(src_y, src_ystride, last_src_y, + last_src_ystride, &tmp_sse); + // Note: tmp_sse - tmp_variance = ((sum * sum) >> 12) + if (tmp_sad < avg_source_sad_threshold) + x->content_state_sb = ((tmp_sse - tmp_variance) < 25) ? kLowSadLowSumdiff + : kLowSadHighSumdiff; + else + x->content_state_sb = ((tmp_sse - tmp_variance) < 25) ? kHighSadLowSumdiff + : kHighSadHighSumdiff; + + // Detect large lighting change. + if (cpi->oxcf.content != VP9E_CONTENT_SCREEN && + cpi->oxcf.rc_mode == VPX_CBR && tmp_variance < (tmp_sse >> 3) && + (tmp_sse - tmp_variance) > 10000) + x->content_state_sb = kLowVarHighSumdiff; + else if (tmp_sad > (avg_source_sad_threshold << 1)) + x->content_state_sb = kVeryHighSad; + + if (cpi->content_state_sb_fd != NULL) { + if (tmp_sad < avg_source_sad_threshold2) { + // Cap the increment to 255. + if (cpi->content_state_sb_fd[sb_offset] < 255) + cpi->content_state_sb_fd[sb_offset]++; + } else { + cpi->content_state_sb_fd[sb_offset] = 0; + } + } + if (tmp_sad == 0) x->zero_temp_sad_source = 1; + return tmp_sad; +} + +// This function chooses partitioning based on the variance between source and +// reconstructed last, where variance is computed for down-sampled inputs. +static int choose_partitioning(VP9_COMP *cpi, const TileInfo *const tile, + MACROBLOCK *x, int mi_row, int mi_col) { + VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *xd = &x->e_mbd; + int i, j, k, m; + v64x64 vt; + v16x16 *vt2 = NULL; + int force_split[21]; + int avg_32x32; + int max_var_32x32 = 0; + int min_var_32x32 = INT_MAX; + int var_32x32; + int avg_16x16[4]; + int maxvar_16x16[4]; + int minvar_16x16[4]; + int64_t threshold_4x4avg; + NOISE_LEVEL noise_level = kLow; + int content_state = 0; + uint8_t *s; + const uint8_t *d; + int sp; + int dp; + int compute_minmax_variance = 1; + unsigned int y_sad = UINT_MAX; + BLOCK_SIZE bsize = BLOCK_64X64; + // Ref frame used in partitioning. + MV_REFERENCE_FRAME ref_frame_partition = LAST_FRAME; + int pixels_wide = 64, pixels_high = 64; + int64_t thresholds[4] = { cpi->vbp_thresholds[0], cpi->vbp_thresholds[1], + cpi->vbp_thresholds[2], cpi->vbp_thresholds[3] }; + int scene_change_detected = + cpi->rc.high_source_sad || + (cpi->use_svc && cpi->svc.high_source_sad_superframe); + int force_64_split = scene_change_detected || + (cpi->oxcf.content == VP9E_CONTENT_SCREEN && + cpi->compute_source_sad_onepass && + cpi->sf.use_source_sad && !x->zero_temp_sad_source); + + // For the variance computation under SVC mode, we treat the frame as key if + // the reference (base layer frame) is key frame (i.e., is_key_frame == 1). + int is_key_frame = + (frame_is_intra_only(cm) || + (is_one_pass_svc(cpi) && + cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame)); + + if (!is_key_frame) { + if (cm->frame_refs[LAST_FRAME - 1].sf.x_scale_fp == REF_INVALID_SCALE || + cm->frame_refs[LAST_FRAME - 1].sf.y_scale_fp == REF_INVALID_SCALE) + is_key_frame = 1; + } + + // Always use 4x4 partition for key frame. + const int use_4x4_partition = frame_is_intra_only(cm); + const int low_res = (cm->width <= 352 && cm->height <= 288); + int variance4x4downsample[16]; + int segment_id; + int sb_offset = (cm->mi_stride >> 3) * (mi_row >> 3) + (mi_col >> 3); + + // For SVC: check if LAST frame is NULL or if the resolution of LAST is + // different than the current frame resolution, and if so, treat this frame + // as a key frame, for the purpose of the superblock partitioning. + // LAST == NULL can happen in some cases where enhancement spatial layers are + // enabled dyanmically in the stream and the only reference is the spatial + // reference (GOLDEN). + if (cpi->use_svc) { + const YV12_BUFFER_CONFIG *const ref = get_ref_frame_buffer(cpi, LAST_FRAME); + if (ref == NULL || ref->y_crop_height != cm->height || + ref->y_crop_width != cm->width) + is_key_frame = 1; + } + + set_offsets(cpi, tile, x, mi_row, mi_col, BLOCK_64X64); + set_segment_index(cpi, x, mi_row, mi_col, BLOCK_64X64, 0); + segment_id = xd->mi[0]->segment_id; + + if (cpi->oxcf.speed >= 8 || (cpi->use_svc && cpi->svc.non_reference_frame)) + compute_minmax_variance = 0; + + memset(x->variance_low, 0, sizeof(x->variance_low)); + + if (cpi->sf.use_source_sad && !is_key_frame) { + int sb_offset2 = ((cm->mi_cols + 7) >> 3) * (mi_row >> 3) + (mi_col >> 3); + content_state = x->content_state_sb; + x->skip_low_source_sad = (content_state == kLowSadLowSumdiff || + content_state == kLowSadHighSumdiff) + ? 1 + : 0; + x->lowvar_highsumdiff = (content_state == kLowVarHighSumdiff) ? 1 : 0; + if (cpi->content_state_sb_fd != NULL) + x->last_sb_high_content = cpi->content_state_sb_fd[sb_offset2]; + + // For SVC on top spatial layer: use/scale the partition from + // the lower spatial resolution if svc_use_lowres_part is enabled. + if (cpi->sf.svc_use_lowres_part && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 1 && + cpi->svc.prev_partition_svc != NULL && content_state != kVeryHighSad) { + if (!scale_partitioning_svc(cpi, x, xd, BLOCK_64X64, mi_row >> 1, + mi_col >> 1, mi_row, mi_col)) { + if (cpi->sf.copy_partition_flag) { + update_prev_partition(cpi, x, segment_id, mi_row, mi_col, sb_offset); + } + return 0; + } + } + // If source_sad is low copy the partition without computing the y_sad. + if (x->skip_low_source_sad && cpi->sf.copy_partition_flag && + !force_64_split && + copy_partitioning(cpi, x, xd, mi_row, mi_col, segment_id, sb_offset)) { + x->sb_use_mv_part = 1; + if (cpi->sf.svc_use_lowres_part && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 2) + update_partition_svc(cpi, BLOCK_64X64, mi_row, mi_col); + return 0; + } + } + + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled && + cyclic_refresh_segment_id_boosted(segment_id)) { + int q = vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex); + set_vbp_thresholds(cpi, thresholds, q, content_state); + } else { + set_vbp_thresholds(cpi, thresholds, cm->base_qindex, content_state); + } + // Decrease 32x32 split threshold for screen on base layer, for scene + // change/high motion frames. + if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && + cpi->svc.spatial_layer_id == 0 && force_64_split) + thresholds[1] = 3 * thresholds[1] >> 2; + + // For non keyframes, disable 4x4 average for low resolution when speed = 8 + threshold_4x4avg = (cpi->oxcf.speed < 8) ? thresholds[1] << 1 : INT64_MAX; + + if (xd->mb_to_right_edge < 0) pixels_wide += (xd->mb_to_right_edge >> 3); + if (xd->mb_to_bottom_edge < 0) pixels_high += (xd->mb_to_bottom_edge >> 3); + + s = x->plane[0].src.buf; + sp = x->plane[0].src.stride; + + // Index for force_split: 0 for 64x64, 1-4 for 32x32 blocks, + // 5-20 for the 16x16 blocks. + force_split[0] = force_64_split; + + if (!is_key_frame) { + // In the case of spatial/temporal scalable coding, the assumption here is + // that the temporal reference frame will always be of type LAST_FRAME. + // TODO(marpan): If that assumption is broken, we need to revisit this code. + MODE_INFO *mi = xd->mi[0]; + YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME); + + const YV12_BUFFER_CONFIG *yv12_g = NULL; + unsigned int y_sad_g, y_sad_thr, y_sad_last; + bsize = BLOCK_32X32 + (mi_col + 4 < cm->mi_cols) * 2 + + (mi_row + 4 < cm->mi_rows); + + assert(yv12 != NULL); + + if (!(is_one_pass_svc(cpi) && cpi->svc.spatial_layer_id) || + cpi->svc.use_gf_temporal_ref_current_layer) { + // For now, GOLDEN will not be used for non-zero spatial layers, since + // it may not be a temporal reference. + yv12_g = get_ref_frame_buffer(cpi, GOLDEN_FRAME); + } + + // Only compute y_sad_g (sad for golden reference) for speed < 8. + if (cpi->oxcf.speed < 8 && yv12_g && yv12_g != yv12 && + (cpi->ref_frame_flags & VP9_GOLD_FLAG)) { + vp9_setup_pre_planes(xd, 0, yv12_g, mi_row, mi_col, + &cm->frame_refs[GOLDEN_FRAME - 1].sf); + y_sad_g = cpi->fn_ptr[bsize].sdf( + x->plane[0].src.buf, x->plane[0].src.stride, xd->plane[0].pre[0].buf, + xd->plane[0].pre[0].stride); + } else { + y_sad_g = UINT_MAX; + } + + if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR && + cpi->rc.is_src_frame_alt_ref) { + yv12 = get_ref_frame_buffer(cpi, ALTREF_FRAME); + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, + &cm->frame_refs[ALTREF_FRAME - 1].sf); + mi->ref_frame[0] = ALTREF_FRAME; + y_sad_g = UINT_MAX; + } else { + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, + &cm->frame_refs[LAST_FRAME - 1].sf); + mi->ref_frame[0] = LAST_FRAME; + } + mi->ref_frame[1] = NO_REF_FRAME; + mi->sb_type = BLOCK_64X64; + mi->mv[0].as_int = 0; + mi->interp_filter = BILINEAR; + + if (cpi->oxcf.speed >= 8 && !low_res && + x->content_state_sb != kVeryHighSad) { + y_sad = cpi->fn_ptr[bsize].sdf( + x->plane[0].src.buf, x->plane[0].src.stride, xd->plane[0].pre[0].buf, + xd->plane[0].pre[0].stride); + } else { + const MV dummy_mv = { 0, 0 }; + y_sad = vp9_int_pro_motion_estimation(cpi, x, bsize, mi_row, mi_col, + &dummy_mv); + x->sb_use_mv_part = 1; + x->sb_mvcol_part = mi->mv[0].as_mv.col; + x->sb_mvrow_part = mi->mv[0].as_mv.row; + if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && + cpi->svc.spatial_layer_id == cpi->svc.first_spatial_layer_to_encode && + cpi->svc.high_num_blocks_with_motion && !x->zero_temp_sad_source && + cm->width > 640 && cm->height > 480) { + // Disable split below 16x16 block size when scroll motion (horz or + // vert) is detected. + // TODO(marpan/jianj): Improve this condition: issue is that search + // range is hard-coded/limited in vp9_int_pro_motion_estimation() so + // scroll motion may not be detected here. + if (((abs(x->sb_mvrow_part) >= 48 && abs(x->sb_mvcol_part) <= 8) || + (abs(x->sb_mvcol_part) >= 48 && abs(x->sb_mvrow_part) <= 8)) && + y_sad < 100000) { + compute_minmax_variance = 0; + thresholds[2] = INT64_MAX; + } + } + } + + y_sad_last = y_sad; + // Pick ref frame for partitioning, bias last frame when y_sad_g and y_sad + // are close if short_circuit_low_temp_var is on. + y_sad_thr = cpi->sf.short_circuit_low_temp_var ? (y_sad * 7) >> 3 : y_sad; + if (y_sad_g < y_sad_thr) { + vp9_setup_pre_planes(xd, 0, yv12_g, mi_row, mi_col, + &cm->frame_refs[GOLDEN_FRAME - 1].sf); + mi->ref_frame[0] = GOLDEN_FRAME; + mi->mv[0].as_int = 0; + y_sad = y_sad_g; + ref_frame_partition = GOLDEN_FRAME; + } else { + x->pred_mv[LAST_FRAME] = mi->mv[0].as_mv; + ref_frame_partition = LAST_FRAME; + } + + set_ref_ptrs(cm, xd, mi->ref_frame[0], mi->ref_frame[1]); + vp9_build_inter_predictors_sb(xd, mi_row, mi_col, BLOCK_64X64); + + if (cpi->use_skin_detection) + x->sb_is_skin = skin_sb_split(cpi, low_res, mi_row, mi_col, force_split); + + d = xd->plane[0].dst.buf; + dp = xd->plane[0].dst.stride; + + // If the y_sad is very small, take 64x64 as partition and exit. + // Don't check on boosted segment for now, as 64x64 is suppressed there. + if (segment_id == CR_SEGMENT_ID_BASE && y_sad < cpi->vbp_threshold_sad) { + const int block_width = num_8x8_blocks_wide_lookup[BLOCK_64X64]; + const int block_height = num_8x8_blocks_high_lookup[BLOCK_64X64]; + if (mi_col + block_width / 2 < cm->mi_cols && + mi_row + block_height / 2 < cm->mi_rows) { + set_block_size(cpi, x, xd, mi_row, mi_col, BLOCK_64X64); + x->variance_low[0] = 1; + chroma_check(cpi, x, bsize, y_sad, is_key_frame, scene_change_detected); + if (cpi->sf.svc_use_lowres_part && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 2) + update_partition_svc(cpi, BLOCK_64X64, mi_row, mi_col); + if (cpi->sf.copy_partition_flag) { + update_prev_partition(cpi, x, segment_id, mi_row, mi_col, sb_offset); + } + return 0; + } + } + + // If the y_sad is small enough, copy the partition of the superblock in the + // last frame to current frame only if the last frame is not a keyframe. + // Stop the copy every cpi->max_copied_frame to refresh the partition. + // TODO(jianj) : tune the threshold. + if (cpi->sf.copy_partition_flag && y_sad_last < cpi->vbp_threshold_copy && + copy_partitioning(cpi, x, xd, mi_row, mi_col, segment_id, sb_offset)) { + chroma_check(cpi, x, bsize, y_sad, is_key_frame, scene_change_detected); + if (cpi->sf.svc_use_lowres_part && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 2) + update_partition_svc(cpi, BLOCK_64X64, mi_row, mi_col); + return 0; + } + } else { + d = VP9_VAR_OFFS; + dp = 0; +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + switch (xd->bd) { + case 10: d = CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_10); break; + case 12: d = CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_12); break; + case 8: + default: d = CONVERT_TO_BYTEPTR(VP9_HIGH_VAR_OFFS_8); break; + } + } +#endif // CONFIG_VP9_HIGHBITDEPTH + } + + if (low_res && threshold_4x4avg < INT64_MAX) + CHECK_MEM_ERROR(&cm->error, vt2, vpx_calloc(16, sizeof(*vt2))); + // Fill in the entire tree of 8x8 (or 4x4 under some conditions) variances + // for splits. + for (i = 0; i < 4; i++) { + const int x32_idx = ((i & 1) << 5); + const int y32_idx = ((i >> 1) << 5); + const int i2 = i << 2; + force_split[i + 1] = 0; + avg_16x16[i] = 0; + maxvar_16x16[i] = 0; + minvar_16x16[i] = INT_MAX; + for (j = 0; j < 4; j++) { + const int x16_idx = x32_idx + ((j & 1) << 4); + const int y16_idx = y32_idx + ((j >> 1) << 4); + const int split_index = 5 + i2 + j; + v16x16 *vst = &vt.split[i].split[j]; + force_split[split_index] = 0; + variance4x4downsample[i2 + j] = 0; + if (!is_key_frame) { + fill_variance_8x8avg(s, sp, d, dp, x16_idx, y16_idx, vst, +#if CONFIG_VP9_HIGHBITDEPTH + xd->cur_buf->flags, +#endif + pixels_wide, pixels_high, is_key_frame); + fill_variance_tree(&vt.split[i].split[j], BLOCK_16X16); + get_variance(&vt.split[i].split[j].part_variances.none); + avg_16x16[i] += vt.split[i].split[j].part_variances.none.variance; + if (vt.split[i].split[j].part_variances.none.variance < minvar_16x16[i]) + minvar_16x16[i] = vt.split[i].split[j].part_variances.none.variance; + if (vt.split[i].split[j].part_variances.none.variance > maxvar_16x16[i]) + maxvar_16x16[i] = vt.split[i].split[j].part_variances.none.variance; + if (vt.split[i].split[j].part_variances.none.variance > thresholds[2]) { + // 16X16 variance is above threshold for split, so force split to 8x8 + // for this 16x16 block (this also forces splits for upper levels). + force_split[split_index] = 1; + force_split[i + 1] = 1; + force_split[0] = 1; + } else if (compute_minmax_variance && + vt.split[i].split[j].part_variances.none.variance > + thresholds[1] && + !cyclic_refresh_segment_id_boosted(segment_id)) { + // We have some nominal amount of 16x16 variance (based on average), + // compute the minmax over the 8x8 sub-blocks, and if above threshold, + // force split to 8x8 block for this 16x16 block. + int minmax = compute_minmax_8x8(s, sp, d, dp, x16_idx, y16_idx, +#if CONFIG_VP9_HIGHBITDEPTH + xd->cur_buf->flags, +#endif + pixels_wide, pixels_high); + int thresh_minmax = (int)cpi->vbp_threshold_minmax; + if (x->content_state_sb == kVeryHighSad) + thresh_minmax = thresh_minmax << 1; + if (minmax > thresh_minmax) { + force_split[split_index] = 1; + force_split[i + 1] = 1; + force_split[0] = 1; + } + } + } + if (is_key_frame || + (low_res && vt.split[i].split[j].part_variances.none.variance > + threshold_4x4avg)) { + force_split[split_index] = 0; + // Go down to 4x4 down-sampling for variance. + variance4x4downsample[i2 + j] = 1; + for (k = 0; k < 4; k++) { + int x8_idx = x16_idx + ((k & 1) << 3); + int y8_idx = y16_idx + ((k >> 1) << 3); + v8x8 *vst2 = is_key_frame ? &vst->split[k] : &vt2[i2 + j].split[k]; + fill_variance_4x4avg(s, sp, d, dp, x8_idx, y8_idx, vst2, +#if CONFIG_VP9_HIGHBITDEPTH + xd->cur_buf->flags, +#endif + pixels_wide, pixels_high, is_key_frame); + } + } + } + } + if (cpi->noise_estimate.enabled) + noise_level = vp9_noise_estimate_extract_level(&cpi->noise_estimate); + // Fill the rest of the variance tree by summing split partition values. + avg_32x32 = 0; + for (i = 0; i < 4; i++) { + const int i2 = i << 2; + for (j = 0; j < 4; j++) { + if (variance4x4downsample[i2 + j] == 1) { + v16x16 *vtemp = (!is_key_frame) ? &vt2[i2 + j] : &vt.split[i].split[j]; + for (m = 0; m < 4; m++) fill_variance_tree(&vtemp->split[m], BLOCK_8X8); + fill_variance_tree(vtemp, BLOCK_16X16); + // If variance of this 16x16 block is above the threshold, force block + // to split. This also forces a split on the upper levels. + get_variance(&vtemp->part_variances.none); + if (vtemp->part_variances.none.variance > thresholds[2]) { + force_split[5 + i2 + j] = 1; + force_split[i + 1] = 1; + force_split[0] = 1; + } + } + } + fill_variance_tree(&vt.split[i], BLOCK_32X32); + // If variance of this 32x32 block is above the threshold, or if its above + // (some threshold of) the average variance over the sub-16x16 blocks, then + // force this block to split. This also forces a split on the upper + // (64x64) level. + if (!force_split[i + 1]) { + get_variance(&vt.split[i].part_variances.none); + var_32x32 = vt.split[i].part_variances.none.variance; + max_var_32x32 = VPXMAX(var_32x32, max_var_32x32); + min_var_32x32 = VPXMIN(var_32x32, min_var_32x32); + if (vt.split[i].part_variances.none.variance > thresholds[1] || + (!is_key_frame && + vt.split[i].part_variances.none.variance > (thresholds[1] >> 1) && + vt.split[i].part_variances.none.variance > (avg_16x16[i] >> 1))) { + force_split[i + 1] = 1; + force_split[0] = 1; + } else if (!is_key_frame && noise_level < kLow && cm->height <= 360 && + (maxvar_16x16[i] - minvar_16x16[i]) > (thresholds[1] >> 1) && + maxvar_16x16[i] > thresholds[1]) { + force_split[i + 1] = 1; + force_split[0] = 1; + } + avg_32x32 += var_32x32; + } + } + if (!force_split[0]) { + fill_variance_tree(&vt, BLOCK_64X64); + get_variance(&vt.part_variances.none); + // If variance of this 64x64 block is above (some threshold of) the average + // variance over the sub-32x32 blocks, then force this block to split. + // Only checking this for noise level >= medium for now. + if (!is_key_frame && noise_level >= kMedium && + vt.part_variances.none.variance > (9 * avg_32x32) >> 5) + force_split[0] = 1; + // Else if the maximum 32x32 variance minus the miniumum 32x32 variance in + // a 64x64 block is greater than threshold and the maximum 32x32 variance is + // above a miniumum threshold, then force the split of a 64x64 block + // Only check this for low noise. + else if (!is_key_frame && noise_level < kMedium && + (max_var_32x32 - min_var_32x32) > 3 * (thresholds[0] >> 3) && + max_var_32x32 > thresholds[0] >> 1) + force_split[0] = 1; + } + + // Now go through the entire structure, splitting every block size until + // we get to one that's got a variance lower than our threshold. + if (mi_col + 8 > cm->mi_cols || mi_row + 8 > cm->mi_rows || + !set_vt_partitioning(cpi, x, xd, &vt, BLOCK_64X64, mi_row, mi_col, + thresholds[0], BLOCK_16X16, force_split[0])) { + for (i = 0; i < 4; ++i) { + const int x32_idx = ((i & 1) << 2); + const int y32_idx = ((i >> 1) << 2); + const int i2 = i << 2; + if (!set_vt_partitioning(cpi, x, xd, &vt.split[i], BLOCK_32X32, + (mi_row + y32_idx), (mi_col + x32_idx), + thresholds[1], BLOCK_16X16, + force_split[i + 1])) { + for (j = 0; j < 4; ++j) { + const int x16_idx = ((j & 1) << 1); + const int y16_idx = ((j >> 1) << 1); + // For inter frames: if variance4x4downsample[] == 1 for this 16x16 + // block, then the variance is based on 4x4 down-sampling, so use vt2 + // in set_vt_partitioning(), otherwise use vt. + v16x16 *vtemp = (!is_key_frame && variance4x4downsample[i2 + j] == 1) + ? &vt2[i2 + j] + : &vt.split[i].split[j]; + if (!set_vt_partitioning( + cpi, x, xd, vtemp, BLOCK_16X16, mi_row + y32_idx + y16_idx, + mi_col + x32_idx + x16_idx, thresholds[2], cpi->vbp_bsize_min, + force_split[5 + i2 + j])) { + for (k = 0; k < 4; ++k) { + const int x8_idx = (k & 1); + const int y8_idx = (k >> 1); + if (use_4x4_partition) { + if (!set_vt_partitioning(cpi, x, xd, &vtemp->split[k], + BLOCK_8X8, + mi_row + y32_idx + y16_idx + y8_idx, + mi_col + x32_idx + x16_idx + x8_idx, + thresholds[3], BLOCK_8X8, 0)) { + set_block_size( + cpi, x, xd, (mi_row + y32_idx + y16_idx + y8_idx), + (mi_col + x32_idx + x16_idx + x8_idx), BLOCK_4X4); + } + } else { + set_block_size( + cpi, x, xd, (mi_row + y32_idx + y16_idx + y8_idx), + (mi_col + x32_idx + x16_idx + x8_idx), BLOCK_8X8); + } + } + } + } + } + } + } + + if (!frame_is_intra_only(cm) && cpi->sf.copy_partition_flag) { + update_prev_partition(cpi, x, segment_id, mi_row, mi_col, sb_offset); + } + + if (!frame_is_intra_only(cm) && cpi->sf.svc_use_lowres_part && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 2) + update_partition_svc(cpi, BLOCK_64X64, mi_row, mi_col); + + if (cpi->sf.short_circuit_low_temp_var) { + set_low_temp_var_flag(cpi, x, xd, &vt, thresholds, ref_frame_partition, + mi_col, mi_row); + } + + chroma_check(cpi, x, bsize, y_sad, is_key_frame, scene_change_detected); + if (vt2) vpx_free(vt2); + return 0; +} + +#if !CONFIG_REALTIME_ONLY +static void update_state(VP9_COMP *cpi, ThreadData *td, PICK_MODE_CONTEXT *ctx, + int mi_row, int mi_col, BLOCK_SIZE bsize, + int output_enabled) { + int i, x_idx, y; + VP9_COMMON *const cm = &cpi->common; + RD_COUNTS *const rdc = &td->rd_counts; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + struct macroblock_plane *const p = x->plane; + struct macroblockd_plane *const pd = xd->plane; + MODE_INFO *mi = &ctx->mic; + MODE_INFO *const xdmi = xd->mi[0]; + MODE_INFO *mi_addr = xd->mi[0]; + const struct segmentation *const seg = &cm->seg; + const int bw = num_8x8_blocks_wide_lookup[mi->sb_type]; + const int bh = num_8x8_blocks_high_lookup[mi->sb_type]; + const int x_mis = VPXMIN(bw, cm->mi_cols - mi_col); + const int y_mis = VPXMIN(bh, cm->mi_rows - mi_row); + MV_REF *const frame_mvs = cm->cur_frame->mvs + mi_row * cm->mi_cols + mi_col; + int w, h; + + const int mis = cm->mi_stride; + const int mi_width = num_8x8_blocks_wide_lookup[bsize]; + const int mi_height = num_8x8_blocks_high_lookup[bsize]; + int max_plane; + + assert(mi->sb_type == bsize); + + *mi_addr = *mi; + *x->mbmi_ext = ctx->mbmi_ext; + + // If segmentation in use + if (seg->enabled) { + // For in frame complexity AQ copy the segment id from the segment map. + if (cpi->oxcf.aq_mode == COMPLEXITY_AQ) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + mi_addr->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + } + // Else for cyclic refresh mode update the segment map, set the segment id + // and then update the quantizer. + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && + cpi->cyclic_refresh->content_mode) { + vp9_cyclic_refresh_update_segment(cpi, xd->mi[0], mi_row, mi_col, bsize, + ctx->rate, ctx->dist, x->skip, p); + } + } + + max_plane = is_inter_block(xdmi) ? MAX_MB_PLANE : 1; + for (i = 0; i < max_plane; ++i) { + p[i].coeff = ctx->coeff_pbuf[i][1]; + p[i].qcoeff = ctx->qcoeff_pbuf[i][1]; + pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][1]; + p[i].eobs = ctx->eobs_pbuf[i][1]; + } + + for (i = max_plane; i < MAX_MB_PLANE; ++i) { + p[i].coeff = ctx->coeff_pbuf[i][2]; + p[i].qcoeff = ctx->qcoeff_pbuf[i][2]; + pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][2]; + p[i].eobs = ctx->eobs_pbuf[i][2]; + } + + // Restore the coding context of the MB to that that was in place + // when the mode was picked for it + for (y = 0; y < mi_height; y++) + for (x_idx = 0; x_idx < mi_width; x_idx++) + if ((xd->mb_to_right_edge >> (3 + MI_SIZE_LOG2)) + mi_width > x_idx && + (xd->mb_to_bottom_edge >> (3 + MI_SIZE_LOG2)) + mi_height > y) { + xd->mi[x_idx + y * mis] = mi_addr; + } + + if (cpi->oxcf.aq_mode != NO_AQ) vp9_init_plane_quantizers(cpi, x); + + if (is_inter_block(xdmi) && xdmi->sb_type < BLOCK_8X8) { + xdmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int; + xdmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int; + } + + x->skip = ctx->skip; + memcpy(x->zcoeff_blk[xdmi->tx_size], ctx->zcoeff_blk, + sizeof(ctx->zcoeff_blk[0]) * ctx->num_4x4_blk); + + if (!output_enabled) return; + +#if CONFIG_INTERNAL_STATS + if (frame_is_intra_only(cm)) { + static const int kf_mode_index[] = { + THR_DC /*DC_PRED*/, THR_V_PRED /*V_PRED*/, + THR_H_PRED /*H_PRED*/, THR_D45_PRED /*D45_PRED*/, + THR_D135_PRED /*D135_PRED*/, THR_D117_PRED /*D117_PRED*/, + THR_D153_PRED /*D153_PRED*/, THR_D207_PRED /*D207_PRED*/, + THR_D63_PRED /*D63_PRED*/, THR_TM /*TM_PRED*/, + }; + ++cpi->mode_chosen_counts[kf_mode_index[xdmi->mode]]; + } else { + // Note how often each mode chosen as best + ++cpi->mode_chosen_counts[ctx->best_mode_index]; + } +#endif + if (!frame_is_intra_only(cm)) { + if (is_inter_block(xdmi)) { + vp9_update_mv_count(td); + + if (cm->interp_filter == SWITCHABLE) { + const int ctx_interp = get_pred_context_switchable_interp(xd); + ++td->counts->switchable_interp[ctx_interp][xdmi->interp_filter]; + } + } + + rdc->comp_pred_diff[SINGLE_REFERENCE] += ctx->single_pred_diff; + rdc->comp_pred_diff[COMPOUND_REFERENCE] += ctx->comp_pred_diff; + rdc->comp_pred_diff[REFERENCE_MODE_SELECT] += ctx->hybrid_pred_diff; + + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + rdc->filter_diff[i] += ctx->best_filter_diff[i]; + } + + for (h = 0; h < y_mis; ++h) { + MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols; + for (w = 0; w < x_mis; ++w) { + MV_REF *const mv = frame_mv + w; + mv->ref_frame[0] = mi->ref_frame[0]; + mv->ref_frame[1] = mi->ref_frame[1]; + mv->mv[0].as_int = mi->mv[0].as_int; + mv->mv[1].as_int = mi->mv[1].as_int; + } + } +} +#endif // !CONFIG_REALTIME_ONLY + +void vp9_setup_src_planes(MACROBLOCK *x, const YV12_BUFFER_CONFIG *src, + int mi_row, int mi_col) { + uint8_t *const buffers[3] = { src->y_buffer, src->u_buffer, src->v_buffer }; + const int strides[3] = { src->y_stride, src->uv_stride, src->uv_stride }; + int i; + + // Set current frame pointer. + x->e_mbd.cur_buf = src; + + for (i = 0; i < MAX_MB_PLANE; i++) + setup_pred_plane(&x->plane[i].src, buffers[i], strides[i], mi_row, mi_col, + NULL, x->e_mbd.plane[i].subsampling_x, + x->e_mbd.plane[i].subsampling_y); +} + +static void set_mode_info_seg_skip(MACROBLOCK *x, TX_MODE tx_mode, + INTERP_FILTER interp_filter, + RD_COST *rd_cost, BLOCK_SIZE bsize) { + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *const mi = xd->mi[0]; + INTERP_FILTER filter_ref; + + filter_ref = get_pred_context_switchable_interp(xd); + if (interp_filter == BILINEAR) + filter_ref = BILINEAR; + else if (filter_ref == SWITCHABLE_FILTERS) + filter_ref = EIGHTTAP; + + mi->sb_type = bsize; + mi->mode = ZEROMV; + mi->tx_size = + VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[tx_mode]); + mi->skip = 1; + mi->uv_mode = DC_PRED; + mi->ref_frame[0] = LAST_FRAME; + mi->ref_frame[1] = NO_REF_FRAME; + mi->mv[0].as_int = 0; + mi->interp_filter = filter_ref; + + xd->mi[0]->bmi[0].as_mv[0].as_int = 0; + x->skip = 1; + + vp9_rd_cost_init(rd_cost); +} + +#if !CONFIG_REALTIME_ONLY +static void set_segment_rdmult(VP9_COMP *const cpi, MACROBLOCK *const x, + int mi_row, int mi_col, BLOCK_SIZE bsize, + AQ_MODE aq_mode) { + VP9_COMMON *const cm = &cpi->common; + const VP9EncoderConfig *const oxcf = &cpi->oxcf; + const uint8_t *const map = + cm->seg.update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + + vp9_init_plane_quantizers(cpi, x); + vpx_clear_system_state(); + + if (aq_mode == NO_AQ || aq_mode == PSNR_AQ) { + if (cpi->sf.enable_tpl_model) x->rdmult = x->cb_rdmult; + } else if (aq_mode == PERCEPTUAL_AQ) { + x->rdmult = x->cb_rdmult; + } else if (aq_mode == CYCLIC_REFRESH_AQ) { + // If segment is boosted, use rdmult for that segment. + if (cyclic_refresh_segment_id_boosted( + get_segment_id(cm, map, bsize, mi_row, mi_col))) + x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh); + } else { + x->rdmult = vp9_compute_rd_mult(cpi, cm->base_qindex + cm->y_dc_delta_q); + } + + if (oxcf->tuning == VP8_TUNE_SSIM) { + set_ssim_rdmult(cpi, x, bsize, mi_row, mi_col, &x->rdmult); + } +} + +static void rd_pick_sb_modes(VP9_COMP *cpi, TileDataEnc *tile_data, + MACROBLOCK *const x, int mi_row, int mi_col, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, int rate_in_best_rd, + int64_t dist_in_best_rd) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *mi; + struct macroblock_plane *const p = x->plane; + struct macroblockd_plane *const pd = xd->plane; + const AQ_MODE aq_mode = cpi->oxcf.aq_mode; + int i, orig_rdmult; + int64_t best_rd = INT64_MAX; + + vpx_clear_system_state(); +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, rd_pick_sb_modes_time); +#endif + + // Use the lower precision, but faster, 32x32 fdct for mode selection. + x->use_lp32x32fdct = 1; + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + mi = xd->mi[0]; + mi->sb_type = bsize; + + for (i = 0; i < MAX_MB_PLANE; ++i) { + p[i].coeff = ctx->coeff_pbuf[i][0]; + p[i].qcoeff = ctx->qcoeff_pbuf[i][0]; + pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0]; + p[i].eobs = ctx->eobs_pbuf[i][0]; + } + ctx->is_coded = 0; + ctx->skippable = 0; + ctx->pred_pixel_ready = 0; + x->skip_recode = 0; + + // Set to zero to make sure we do not use the previous encoded frame stats + mi->skip = 0; + +#if CONFIG_VP9_HIGHBITDEPTH + if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + x->source_variance = vp9_high_get_sby_perpixel_variance( + cpi, &x->plane[0].src, bsize, xd->bd); + } else { + x->source_variance = + vp9_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); + } +#else + x->source_variance = + vp9_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize); +#endif // CONFIG_VP9_HIGHBITDEPTH + + // Save rdmult before it might be changed, so it can be restored later. + orig_rdmult = x->rdmult; + + if ((cpi->sf.tx_domain_thresh > 0.0) || + (cpi->sf.trellis_opt_tx_rd.thresh > 0.0)) { + double logvar = vp9_log_block_var(cpi, x, bsize); + // Check block complexity as part of decision on using pixel or transform + // domain distortion in rd tests. + x->block_tx_domain = cpi->sf.allow_txfm_domain_distortion && + (logvar >= cpi->sf.tx_domain_thresh); + + // Store block complexity to decide on using quantized coefficient + // optimization inside the rd loop. + x->log_block_src_var = logvar; + } else { + x->block_tx_domain = cpi->sf.allow_txfm_domain_distortion; + x->log_block_src_var = 0.0; + } + + set_segment_index(cpi, x, mi_row, mi_col, bsize, 0); + set_segment_rdmult(cpi, x, mi_row, mi_col, bsize, aq_mode); + if (rate_in_best_rd < INT_MAX && dist_in_best_rd < INT64_MAX) { + best_rd = vp9_calculate_rd_cost(x->rdmult, x->rddiv, rate_in_best_rd, + dist_in_best_rd); + } + + // Find best coding mode & reconstruct the MB so it is available + // as a predictor for MBs that follow in the SB + if (frame_is_intra_only(cm)) { + vp9_rd_pick_intra_mode_sb(cpi, x, rd_cost, bsize, ctx, best_rd); + } else { + if (bsize >= BLOCK_8X8) { +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, vp9_rd_pick_inter_mode_sb_time); +#endif + if (segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_SKIP)) + vp9_rd_pick_inter_mode_sb_seg_skip(cpi, tile_data, x, rd_cost, bsize, + ctx, best_rd); + else + vp9_rd_pick_inter_mode_sb(cpi, tile_data, x, mi_row, mi_col, rd_cost, + bsize, ctx, best_rd); +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, vp9_rd_pick_inter_mode_sb_time); +#endif + } else { +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, vp9_rd_pick_inter_mode_sub8x8_time); +#endif + vp9_rd_pick_inter_mode_sub8x8(cpi, tile_data, x, mi_row, mi_col, rd_cost, + bsize, ctx, best_rd); +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, vp9_rd_pick_inter_mode_sub8x8_time); +#endif + } + } + + // Examine the resulting rate and for AQ mode 2 make a segment choice. + if ((rd_cost->rate != INT_MAX) && (aq_mode == COMPLEXITY_AQ) && + (bsize >= BLOCK_16X16) && + (cm->frame_type == KEY_FRAME || cpi->refresh_alt_ref_frame || + (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref))) { + vp9_caq_select_segment(cpi, x, bsize, mi_row, mi_col, rd_cost->rate); + } + + // TODO(jingning) The rate-distortion optimization flow needs to be + // refactored to provide proper exit/return handle. + if (rd_cost->rate == INT_MAX || rd_cost->dist == INT64_MAX) + rd_cost->rdcost = INT64_MAX; + else + rd_cost->rdcost = RDCOST(x->rdmult, x->rddiv, rd_cost->rate, rd_cost->dist); + + x->rdmult = orig_rdmult; + + ctx->rate = rd_cost->rate; + ctx->dist = rd_cost->dist; +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, rd_pick_sb_modes_time); +#endif +} +#endif // !CONFIG_REALTIME_ONLY + +static void update_stats(VP9_COMMON *cm, ThreadData *td) { + const MACROBLOCK *x = &td->mb; + const MACROBLOCKD *const xd = &x->e_mbd; + const MODE_INFO *const mi = xd->mi[0]; + const MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext; + const BLOCK_SIZE bsize = mi->sb_type; + + if (!frame_is_intra_only(cm)) { + FRAME_COUNTS *const counts = td->counts; + const int inter_block = is_inter_block(mi); + const int seg_ref_active = + segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_REF_FRAME); + if (!seg_ref_active) { + counts->intra_inter[get_intra_inter_context(xd)][inter_block]++; + // If the segment reference feature is enabled we have only a single + // reference frame allowed for the segment so exclude it from + // the reference frame counts used to work out probabilities. + if (inter_block) { + const MV_REFERENCE_FRAME ref0 = mi->ref_frame[0]; + if (cm->reference_mode == REFERENCE_MODE_SELECT) + counts->comp_inter[vp9_get_reference_mode_context(cm, xd)] + [has_second_ref(mi)]++; + + if (has_second_ref(mi)) { + const int idx = cm->ref_frame_sign_bias[cm->comp_fixed_ref]; + const int ctx = vp9_get_pred_context_comp_ref_p(cm, xd); + const int bit = mi->ref_frame[!idx] == cm->comp_var_ref[1]; + counts->comp_ref[ctx][bit]++; + } else { + counts->single_ref[vp9_get_pred_context_single_ref_p1(xd)][0] + [ref0 != LAST_FRAME]++; + if (ref0 != LAST_FRAME) + counts->single_ref[vp9_get_pred_context_single_ref_p2(xd)][1] + [ref0 != GOLDEN_FRAME]++; + } + } + } + if (inter_block && + !segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_SKIP)) { + const int mode_ctx = mbmi_ext->mode_context[mi->ref_frame[0]]; + if (bsize >= BLOCK_8X8) { + const PREDICTION_MODE mode = mi->mode; + ++counts->inter_mode[mode_ctx][INTER_OFFSET(mode)]; + } else { + const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; + const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; + int idx, idy; + for (idy = 0; idy < 2; idy += num_4x4_h) { + for (idx = 0; idx < 2; idx += num_4x4_w) { + const int j = idy * 2 + idx; + const PREDICTION_MODE b_mode = mi->bmi[j].as_mode; + ++counts->inter_mode[mode_ctx][INTER_OFFSET(b_mode)]; + } + } + } + } + } +} + +#if !CONFIG_REALTIME_ONLY +static void restore_context(MACROBLOCK *const x, 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 bsize) { + MACROBLOCKD *const xd = &x->e_mbd; + int p; + const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; + const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; + int mi_width = num_8x8_blocks_wide_lookup[bsize]; + int mi_height = num_8x8_blocks_high_lookup[bsize]; + for (p = 0; p < MAX_MB_PLANE; p++) { + memcpy(xd->above_context[p] + ((mi_col * 2) >> xd->plane[p].subsampling_x), + a + num_4x4_blocks_wide * p, + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >> + xd->plane[p].subsampling_x); + memcpy(xd->left_context[p] + + ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y), + l + num_4x4_blocks_high * p, + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >> + xd->plane[p].subsampling_y); + } + memcpy(xd->above_seg_context + mi_col, sa, + sizeof(*xd->above_seg_context) * mi_width); + memcpy(xd->left_seg_context + (mi_row & MI_MASK), sl, + sizeof(xd->left_seg_context[0]) * mi_height); +} + +static void save_context(MACROBLOCK *const x, 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 bsize) { + const MACROBLOCKD *const xd = &x->e_mbd; + int p; + const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize]; + const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize]; + int mi_width = num_8x8_blocks_wide_lookup[bsize]; + int mi_height = num_8x8_blocks_high_lookup[bsize]; + + // buffer the above/left context information of the block in search. + for (p = 0; p < MAX_MB_PLANE; ++p) { + memcpy(a + num_4x4_blocks_wide * p, + xd->above_context[p] + (mi_col * 2 >> xd->plane[p].subsampling_x), + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_wide) >> + xd->plane[p].subsampling_x); + memcpy(l + num_4x4_blocks_high * p, + xd->left_context[p] + + ((mi_row & MI_MASK) * 2 >> xd->plane[p].subsampling_y), + (sizeof(ENTROPY_CONTEXT) * num_4x4_blocks_high) >> + xd->plane[p].subsampling_y); + } + memcpy(sa, xd->above_seg_context + mi_col, + sizeof(*xd->above_seg_context) * mi_width); + memcpy(sl, xd->left_seg_context + (mi_row & MI_MASK), + sizeof(xd->left_seg_context[0]) * mi_height); +} + +static void encode_b(VP9_COMP *cpi, const TileInfo *const tile, ThreadData *td, + TOKENEXTRA **tp, int mi_row, int mi_col, + int output_enabled, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx) { + MACROBLOCK *const x = &td->mb; + set_offsets(cpi, tile, x, mi_row, mi_col, bsize); + + if (cpi->sf.enable_tpl_model && + (cpi->oxcf.aq_mode == NO_AQ || cpi->oxcf.aq_mode == PERCEPTUAL_AQ)) { + const VP9EncoderConfig *const oxcf = &cpi->oxcf; + x->rdmult = x->cb_rdmult; + if (oxcf->tuning == VP8_TUNE_SSIM) { + set_ssim_rdmult(cpi, x, bsize, mi_row, mi_col, &x->rdmult); + } + } + + update_state(cpi, td, ctx, mi_row, mi_col, bsize, output_enabled); + encode_superblock(cpi, td, tp, output_enabled, mi_row, mi_col, bsize, ctx); + + if (output_enabled) { + update_stats(&cpi->common, td); + + (*tp)->token = EOSB_TOKEN; + (*tp)++; + } +} + +static void encode_sb(VP9_COMP *cpi, ThreadData *td, const TileInfo *const tile, + TOKENEXTRA **tp, int mi_row, int mi_col, + int output_enabled, BLOCK_SIZE bsize, PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + + const int bsl = b_width_log2_lookup[bsize], hbs = (1 << bsl) / 4; + int ctx; + PARTITION_TYPE partition; + BLOCK_SIZE subsize = bsize; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + if (bsize >= BLOCK_8X8) { + ctx = partition_plane_context(xd, mi_row, mi_col, bsize); + subsize = get_subsize(bsize, pc_tree->partitioning); + } else { + ctx = 0; + subsize = BLOCK_4X4; + } + + partition = partition_lookup[bsl][subsize]; + if (output_enabled && bsize != BLOCK_4X4) + td->counts->partition[ctx][partition]++; + + switch (partition) { + case PARTITION_NONE: + encode_b(cpi, tile, td, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->none); + break; + case PARTITION_VERT: + encode_b(cpi, tile, td, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->vertical[0]); + if (mi_col + hbs < cm->mi_cols && bsize > BLOCK_8X8) { + encode_b(cpi, tile, td, tp, mi_row, mi_col + hbs, output_enabled, + subsize, &pc_tree->vertical[1]); + } + break; + case PARTITION_HORZ: + encode_b(cpi, tile, td, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->horizontal[0]); + if (mi_row + hbs < cm->mi_rows && bsize > BLOCK_8X8) { + encode_b(cpi, tile, td, tp, mi_row + hbs, mi_col, output_enabled, + subsize, &pc_tree->horizontal[1]); + } + break; + default: + assert(partition == PARTITION_SPLIT); + if (bsize == BLOCK_8X8) { + encode_b(cpi, tile, td, tp, mi_row, mi_col, output_enabled, subsize, + pc_tree->leaf_split[0]); + } else { + encode_sb(cpi, td, tile, tp, mi_row, mi_col, output_enabled, subsize, + pc_tree->split[0]); + encode_sb(cpi, td, tile, tp, mi_row, mi_col + hbs, output_enabled, + subsize, pc_tree->split[1]); + encode_sb(cpi, td, tile, tp, mi_row + hbs, mi_col, output_enabled, + subsize, pc_tree->split[2]); + encode_sb(cpi, td, tile, tp, mi_row + hbs, mi_col + hbs, output_enabled, + subsize, pc_tree->split[3]); + } + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} +#endif // !CONFIG_REALTIME_ONLY + +// Check to see if the given partition size is allowed for a specified number +// of 8x8 block rows and columns remaining in the image. +// If not then return the largest allowed partition size +static BLOCK_SIZE find_partition_size(BLOCK_SIZE bsize, int rows_left, + int cols_left, int *bh, int *bw) { + if (rows_left <= 0 || cols_left <= 0) { + return VPXMIN(bsize, BLOCK_8X8); + } else { + for (; bsize > 0; bsize -= 3) { + *bh = num_8x8_blocks_high_lookup[bsize]; + *bw = num_8x8_blocks_wide_lookup[bsize]; + if ((*bh <= rows_left) && (*bw <= cols_left)) { + break; + } + } + } + return bsize; +} + +static void set_partial_b64x64_partition(MODE_INFO *mi, int mis, int bh_in, + int bw_in, int row8x8_remaining, + int col8x8_remaining, BLOCK_SIZE bsize, + MODE_INFO **mi_8x8) { + int bh = bh_in; + int r, c; + for (r = 0; r < MI_BLOCK_SIZE; r += bh) { + int bw = bw_in; + for (c = 0; c < MI_BLOCK_SIZE; c += bw) { + const int index = r * mis + c; + mi_8x8[index] = mi + index; + mi_8x8[index]->sb_type = find_partition_size( + bsize, row8x8_remaining - r, col8x8_remaining - c, &bh, &bw); + } + } +} + +// This function attempts to set all mode info entries in a given SB64 +// to the same block partition size. +// However, at the bottom and right borders of the image the requested size +// may not be allowed in which case this code attempts to choose the largest +// allowable partition. +static void set_fixed_partitioning(VP9_COMP *cpi, const TileInfo *const tile, + MODE_INFO **mi_8x8, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + VP9_COMMON *const cm = &cpi->common; + const int mis = cm->mi_stride; + const int row8x8_remaining = tile->mi_row_end - mi_row; + const int col8x8_remaining = tile->mi_col_end - mi_col; + int block_row, block_col; + MODE_INFO *mi_upper_left = cm->mi + mi_row * mis + mi_col; + int bh = num_8x8_blocks_high_lookup[bsize]; + int bw = num_8x8_blocks_wide_lookup[bsize]; + + assert((row8x8_remaining > 0) && (col8x8_remaining > 0)); + + // Apply the requested partition size to the SB64 if it is all "in image" + if ((col8x8_remaining >= MI_BLOCK_SIZE) && + (row8x8_remaining >= MI_BLOCK_SIZE)) { + for (block_row = 0; block_row < MI_BLOCK_SIZE; block_row += bh) { + for (block_col = 0; block_col < MI_BLOCK_SIZE; block_col += bw) { + int index = block_row * mis + block_col; + mi_8x8[index] = mi_upper_left + index; + mi_8x8[index]->sb_type = bsize; + } + } + } else { + // Else this is a partial SB64. + set_partial_b64x64_partition(mi_upper_left, mis, bh, bw, row8x8_remaining, + col8x8_remaining, bsize, mi_8x8); + } +} + +static const struct { + int row; + int col; +} coord_lookup[16] = { + // 32x32 index = 0 + { 0, 0 }, + { 0, 2 }, + { 2, 0 }, + { 2, 2 }, + // 32x32 index = 1 + { 0, 4 }, + { 0, 6 }, + { 2, 4 }, + { 2, 6 }, + // 32x32 index = 2 + { 4, 0 }, + { 4, 2 }, + { 6, 0 }, + { 6, 2 }, + // 32x32 index = 3 + { 4, 4 }, + { 4, 6 }, + { 6, 4 }, + { 6, 6 }, +}; + +static void set_source_var_based_partition(VP9_COMP *cpi, + const TileInfo *const tile, + MACROBLOCK *const x, + MODE_INFO **mi_8x8, int mi_row, + int mi_col) { + VP9_COMMON *const cm = &cpi->common; + const int mis = cm->mi_stride; + const int row8x8_remaining = tile->mi_row_end - mi_row; + const int col8x8_remaining = tile->mi_col_end - mi_col; + MODE_INFO *mi_upper_left = cm->mi + mi_row * mis + mi_col; + + vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col); + + assert((row8x8_remaining > 0) && (col8x8_remaining > 0)); + + // In-image SB64 + if ((col8x8_remaining >= MI_BLOCK_SIZE) && + (row8x8_remaining >= MI_BLOCK_SIZE)) { + int i, j; + int index; + Diff d32[4]; + const int offset = (mi_row >> 1) * cm->mb_cols + (mi_col >> 1); + int is_larger_better = 0; + int use32x32 = 0; + unsigned int thr = cpi->source_var_thresh; + + memset(d32, 0, sizeof(d32)); + + for (i = 0; i < 4; i++) { + Diff *d16[4]; + + for (j = 0; j < 4; j++) { + int b_mi_row = coord_lookup[i * 4 + j].row; + int b_mi_col = coord_lookup[i * 4 + j].col; + int boffset = b_mi_row / 2 * cm->mb_cols + b_mi_col / 2; + + d16[j] = cpi->source_diff_var + offset + boffset; + + index = b_mi_row * mis + b_mi_col; + mi_8x8[index] = mi_upper_left + index; + mi_8x8[index]->sb_type = BLOCK_16X16; + + // TODO(yunqingwang): If d16[j].var is very large, use 8x8 partition + // size to further improve quality. + } + + is_larger_better = (d16[0]->var < thr) && (d16[1]->var < thr) && + (d16[2]->var < thr) && (d16[3]->var < thr); + + // Use 32x32 partition + if (is_larger_better) { + use32x32 += 1; + + for (j = 0; j < 4; j++) { + d32[i].sse += d16[j]->sse; + d32[i].sum += d16[j]->sum; + } + + d32[i].var = + (unsigned int)(d32[i].sse - + (unsigned int)(((int64_t)d32[i].sum * d32[i].sum) >> + 10)); + + index = coord_lookup[i * 4].row * mis + coord_lookup[i * 4].col; + mi_8x8[index] = mi_upper_left + index; + mi_8x8[index]->sb_type = BLOCK_32X32; + } + } + + if (use32x32 == 4) { + thr <<= 1; + is_larger_better = (d32[0].var < thr) && (d32[1].var < thr) && + (d32[2].var < thr) && (d32[3].var < thr); + + // Use 64x64 partition + if (is_larger_better) { + mi_8x8[0] = mi_upper_left; + mi_8x8[0]->sb_type = BLOCK_64X64; + } + } + } else { // partial in-image SB64 + int bh = num_8x8_blocks_high_lookup[BLOCK_16X16]; + int bw = num_8x8_blocks_wide_lookup[BLOCK_16X16]; + set_partial_b64x64_partition(mi_upper_left, mis, bh, bw, row8x8_remaining, + col8x8_remaining, BLOCK_16X16, mi_8x8); + } +} + +static void update_state_rt(VP9_COMP *cpi, ThreadData *td, + PICK_MODE_CONTEXT *ctx, int mi_row, int mi_col, + int bsize) { + VP9_COMMON *const cm = &cpi->common; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *const mi = xd->mi[0]; + struct macroblock_plane *const p = x->plane; + const struct segmentation *const seg = &cm->seg; + const int bw = num_8x8_blocks_wide_lookup[mi->sb_type]; + const int bh = num_8x8_blocks_high_lookup[mi->sb_type]; + const int x_mis = VPXMIN(bw, cm->mi_cols - mi_col); + const int y_mis = VPXMIN(bh, cm->mi_rows - mi_row); + + *(xd->mi[0]) = ctx->mic; + *(x->mbmi_ext) = ctx->mbmi_ext; + + if (seg->enabled && (cpi->oxcf.aq_mode != NO_AQ || cpi->roi.enabled || + cpi->active_map.enabled)) { + // Setting segmentation map for cyclic_refresh. + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && + cpi->cyclic_refresh->content_mode) { + vp9_cyclic_refresh_update_segment(cpi, mi, mi_row, mi_col, bsize, + ctx->rate, ctx->dist, x->skip, p); + } else { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + mi->segment_id = get_segment_id(cm, map, bsize, mi_row, mi_col); + } + vp9_init_plane_quantizers(cpi, x); + } + + if (is_inter_block(mi)) { + vp9_update_mv_count(td); + if (cm->interp_filter == SWITCHABLE) { + const int pred_ctx = get_pred_context_switchable_interp(xd); + ++td->counts->switchable_interp[pred_ctx][mi->interp_filter]; + } + + if (mi->sb_type < BLOCK_8X8) { + mi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int; + mi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int; + } + } + + if (cm->use_prev_frame_mvs || !cm->error_resilient_mode || + (cpi->svc.use_base_mv && cpi->svc.number_spatial_layers > 1 && + cpi->svc.spatial_layer_id != cpi->svc.number_spatial_layers - 1)) { + MV_REF *const frame_mvs = + cm->cur_frame->mvs + mi_row * cm->mi_cols + mi_col; + int w, h; + + for (h = 0; h < y_mis; ++h) { + MV_REF *const frame_mv = frame_mvs + h * cm->mi_cols; + for (w = 0; w < x_mis; ++w) { + MV_REF *const mv = frame_mv + w; + mv->ref_frame[0] = mi->ref_frame[0]; + mv->ref_frame[1] = mi->ref_frame[1]; + mv->mv[0].as_int = mi->mv[0].as_int; + mv->mv[1].as_int = mi->mv[1].as_int; + } + } + } + + x->skip = ctx->skip; + x->skip_txfm[0] = (mi->segment_id || xd->lossless) ? 0 : ctx->skip_txfm[0]; +} + +static void encode_b_rt(VP9_COMP *cpi, ThreadData *td, + const TileInfo *const tile, TOKENEXTRA **tp, int mi_row, + int mi_col, int output_enabled, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx) { + MACROBLOCK *const x = &td->mb; + set_offsets(cpi, tile, x, mi_row, mi_col, bsize); + update_state_rt(cpi, td, ctx, mi_row, mi_col, bsize); + + encode_superblock(cpi, td, tp, output_enabled, mi_row, mi_col, bsize, ctx); + update_stats(&cpi->common, td); + + (*tp)->token = EOSB_TOKEN; + (*tp)++; +} + +static void encode_sb_rt(VP9_COMP *cpi, ThreadData *td, + const TileInfo *const tile, TOKENEXTRA **tp, + int mi_row, int mi_col, int output_enabled, + BLOCK_SIZE bsize, PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + + const int bsl = b_width_log2_lookup[bsize], hbs = (1 << bsl) / 4; + int ctx; + PARTITION_TYPE partition; + BLOCK_SIZE subsize; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + if (bsize >= BLOCK_8X8) { + const int idx_str = xd->mi_stride * mi_row + mi_col; + MODE_INFO **mi_8x8 = cm->mi_grid_visible + idx_str; + ctx = partition_plane_context(xd, mi_row, mi_col, bsize); + subsize = mi_8x8[0]->sb_type; + } else { + ctx = 0; + subsize = BLOCK_4X4; + } + + partition = partition_lookup[bsl][subsize]; + if (output_enabled && bsize != BLOCK_4X4) + td->counts->partition[ctx][partition]++; + + switch (partition) { + case PARTITION_NONE: + encode_b_rt(cpi, td, tile, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->none); + break; + case PARTITION_VERT: + encode_b_rt(cpi, td, tile, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->vertical[0]); + if (mi_col + hbs < cm->mi_cols && bsize > BLOCK_8X8) { + encode_b_rt(cpi, td, tile, tp, mi_row, mi_col + hbs, output_enabled, + subsize, &pc_tree->vertical[1]); + } + break; + case PARTITION_HORZ: + encode_b_rt(cpi, td, tile, tp, mi_row, mi_col, output_enabled, subsize, + &pc_tree->horizontal[0]); + if (mi_row + hbs < cm->mi_rows && bsize > BLOCK_8X8) { + encode_b_rt(cpi, td, tile, tp, mi_row + hbs, mi_col, output_enabled, + subsize, &pc_tree->horizontal[1]); + } + break; + default: + assert(partition == PARTITION_SPLIT); + subsize = get_subsize(bsize, PARTITION_SPLIT); + encode_sb_rt(cpi, td, tile, tp, mi_row, mi_col, output_enabled, subsize, + pc_tree->split[0]); + encode_sb_rt(cpi, td, tile, tp, mi_row, mi_col + hbs, output_enabled, + subsize, pc_tree->split[1]); + encode_sb_rt(cpi, td, tile, tp, mi_row + hbs, mi_col, output_enabled, + subsize, pc_tree->split[2]); + encode_sb_rt(cpi, td, tile, tp, mi_row + hbs, mi_col + hbs, + output_enabled, subsize, pc_tree->split[3]); + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} + +#if !CONFIG_REALTIME_ONLY +static void rd_use_partition(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, MODE_INFO **mi_8x8, + TOKENEXTRA **tp, int mi_row, int mi_col, + BLOCK_SIZE bsize, int *rate, int64_t *dist, + int do_recon, PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int mis = cm->mi_stride; + const int bsl = b_width_log2_lookup[bsize]; + const int mi_step = num_4x4_blocks_wide_lookup[bsize] / 2; + const int bss = (1 << bsl) / 4; + int i, pl; + PARTITION_TYPE partition = PARTITION_NONE; + BLOCK_SIZE subsize; + ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE]; + PARTITION_CONTEXT sl[8], sa[8]; + RD_COST last_part_rdc, none_rdc, chosen_rdc; + BLOCK_SIZE sub_subsize = BLOCK_4X4; + int splits_below = 0; + BLOCK_SIZE bs_type = mi_8x8[0]->sb_type; + int do_partition_search = 1; + PICK_MODE_CONTEXT *ctx = &pc_tree->none; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + assert(num_4x4_blocks_wide_lookup[bsize] == + num_4x4_blocks_high_lookup[bsize]); + + vp9_rd_cost_reset(&last_part_rdc); + vp9_rd_cost_reset(&none_rdc); + vp9_rd_cost_reset(&chosen_rdc); + + partition = partition_lookup[bsl][bs_type]; + subsize = get_subsize(bsize, partition); + + pc_tree->partitioning = partition; + save_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + + if (bsize == BLOCK_16X16 && cpi->oxcf.aq_mode != NO_AQ) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + x->mb_energy = vp9_block_energy(cpi, x, bsize); + } + + if (do_partition_search && + cpi->sf.partition_search_type == SEARCH_PARTITION && + cpi->sf.adjust_partitioning_from_last_frame) { + // Check if any of the sub blocks are further split. + if (partition == PARTITION_SPLIT && subsize > BLOCK_8X8) { + sub_subsize = get_subsize(subsize, PARTITION_SPLIT); + splits_below = 1; + for (i = 0; i < 4; i++) { + int jj = i >> 1, ii = i & 0x01; + MODE_INFO *this_mi = mi_8x8[jj * bss * mis + ii * bss]; + if (this_mi && this_mi->sb_type >= sub_subsize) { + splits_below = 0; + } + } + } + + // If partition is not none try none unless each of the 4 splits are split + // even further.. + if (partition != PARTITION_NONE && !splits_below && + mi_row + (mi_step >> 1) < cm->mi_rows && + mi_col + (mi_step >> 1) < cm->mi_cols) { + pc_tree->partitioning = PARTITION_NONE; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &none_rdc, bsize, ctx, + INT_MAX, INT64_MAX); + + pl = partition_plane_context(xd, mi_row, mi_col, bsize); + + if (none_rdc.rate < INT_MAX) { + none_rdc.rate += cpi->partition_cost[pl][PARTITION_NONE]; + none_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, none_rdc.rate, none_rdc.dist); + } + + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + mi_8x8[0]->sb_type = bs_type; + pc_tree->partitioning = partition; + } + } + + switch (partition) { + case PARTITION_NONE: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, bsize, + ctx, INT_MAX, INT64_MAX); + break; + case PARTITION_HORZ: + pc_tree->horizontal[0].skip_ref_frame_mask = 0; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + subsize, &pc_tree->horizontal[0], INT_MAX, INT64_MAX); + if (last_part_rdc.rate != INT_MAX && bsize >= BLOCK_8X8 && + mi_row + (mi_step >> 1) < cm->mi_rows) { + RD_COST tmp_rdc; + PICK_MODE_CONTEXT *hctx = &pc_tree->horizontal[0]; + vp9_rd_cost_init(&tmp_rdc); + update_state(cpi, td, hctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, hctx); + pc_tree->horizontal[1].skip_ref_frame_mask = 0; + rd_pick_sb_modes(cpi, tile_data, x, mi_row + (mi_step >> 1), mi_col, + &tmp_rdc, subsize, &pc_tree->horizontal[1], INT_MAX, + INT64_MAX); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + vp9_rd_cost_reset(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + last_part_rdc.rdcost += tmp_rdc.rdcost; + } + break; + case PARTITION_VERT: + pc_tree->vertical[0].skip_ref_frame_mask = 0; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + subsize, &pc_tree->vertical[0], INT_MAX, INT64_MAX); + if (last_part_rdc.rate != INT_MAX && bsize >= BLOCK_8X8 && + mi_col + (mi_step >> 1) < cm->mi_cols) { + RD_COST tmp_rdc; + PICK_MODE_CONTEXT *vctx = &pc_tree->vertical[0]; + vp9_rd_cost_init(&tmp_rdc); + update_state(cpi, td, vctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, vctx); + pc_tree->vertical[bsize > BLOCK_8X8].skip_ref_frame_mask = 0; + rd_pick_sb_modes( + cpi, tile_data, x, mi_row, mi_col + (mi_step >> 1), &tmp_rdc, + subsize, &pc_tree->vertical[bsize > BLOCK_8X8], INT_MAX, INT64_MAX); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + vp9_rd_cost_reset(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + last_part_rdc.rdcost += tmp_rdc.rdcost; + } + break; + default: + assert(partition == PARTITION_SPLIT); + if (bsize == BLOCK_8X8) { + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + subsize, pc_tree->leaf_split[0], INT_MAX, INT64_MAX); + break; + } + last_part_rdc.rate = 0; + last_part_rdc.dist = 0; + last_part_rdc.rdcost = 0; + for (i = 0; i < 4; i++) { + int x_idx = (i & 1) * (mi_step >> 1); + int y_idx = (i >> 1) * (mi_step >> 1); + int jj = i >> 1, ii = i & 0x01; + RD_COST tmp_rdc; + if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols)) + continue; + + vp9_rd_cost_init(&tmp_rdc); + rd_use_partition(cpi, td, tile_data, mi_8x8 + jj * bss * mis + ii * bss, + tp, mi_row + y_idx, mi_col + x_idx, subsize, + &tmp_rdc.rate, &tmp_rdc.dist, i != 3, + pc_tree->split[i]); + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + vp9_rd_cost_reset(&last_part_rdc); + break; + } + last_part_rdc.rate += tmp_rdc.rate; + last_part_rdc.dist += tmp_rdc.dist; + } + break; + } + + pl = partition_plane_context(xd, mi_row, mi_col, bsize); + if (last_part_rdc.rate < INT_MAX) { + last_part_rdc.rate += cpi->partition_cost[pl][partition]; + last_part_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, last_part_rdc.rate, last_part_rdc.dist); + } + + if (do_partition_search && cpi->sf.adjust_partitioning_from_last_frame && + cpi->sf.partition_search_type == SEARCH_PARTITION && + partition != PARTITION_SPLIT && bsize > BLOCK_8X8 && + (mi_row + mi_step < cm->mi_rows || + mi_row + (mi_step >> 1) == cm->mi_rows) && + (mi_col + mi_step < cm->mi_cols || + mi_col + (mi_step >> 1) == cm->mi_cols)) { + BLOCK_SIZE split_subsize = get_subsize(bsize, PARTITION_SPLIT); + chosen_rdc.rate = 0; + chosen_rdc.dist = 0; + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + pc_tree->partitioning = PARTITION_SPLIT; + + // Split partition. + for (i = 0; i < 4; i++) { + int x_idx = (i & 1) * (mi_step >> 1); + int y_idx = (i >> 1) * (mi_step >> 1); + RD_COST tmp_rdc; + + if ((mi_row + y_idx >= cm->mi_rows) || (mi_col + x_idx >= cm->mi_cols)) + continue; + + save_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + pc_tree->split[i]->partitioning = PARTITION_NONE; + rd_pick_sb_modes(cpi, tile_data, x, mi_row + y_idx, mi_col + x_idx, + &tmp_rdc, split_subsize, &pc_tree->split[i]->none, + INT_MAX, INT64_MAX); + + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + + if (tmp_rdc.rate == INT_MAX || tmp_rdc.dist == INT64_MAX) { + vp9_rd_cost_reset(&chosen_rdc); + break; + } + + chosen_rdc.rate += tmp_rdc.rate; + chosen_rdc.dist += tmp_rdc.dist; + + if (i != 3) + encode_sb(cpi, td, tile_info, tp, mi_row + y_idx, mi_col + x_idx, 0, + split_subsize, pc_tree->split[i]); + + pl = partition_plane_context(xd, mi_row + y_idx, mi_col + x_idx, + split_subsize); + chosen_rdc.rate += cpi->partition_cost[pl][PARTITION_NONE]; + } + pl = partition_plane_context(xd, mi_row, mi_col, bsize); + if (chosen_rdc.rate < INT_MAX) { + chosen_rdc.rate += cpi->partition_cost[pl][PARTITION_SPLIT]; + chosen_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, chosen_rdc.rate, chosen_rdc.dist); + } + } + + // If last_part is better set the partitioning to that. + if (last_part_rdc.rdcost < chosen_rdc.rdcost) { + mi_8x8[0]->sb_type = bsize; + if (bsize >= BLOCK_8X8) pc_tree->partitioning = partition; + chosen_rdc = last_part_rdc; + } + // If none was better set the partitioning to that. + if (none_rdc.rdcost < chosen_rdc.rdcost) { + if (bsize >= BLOCK_8X8) pc_tree->partitioning = PARTITION_NONE; + chosen_rdc = none_rdc; + } + + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + + // We must have chosen a partitioning and encoding or we'll fail later on. + // No other opportunities for success. + if (bsize == BLOCK_64X64) + assert(chosen_rdc.rate < INT_MAX && chosen_rdc.dist < INT64_MAX); + + if (do_recon) { + int output_enabled = (bsize == BLOCK_64X64); + encode_sb(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, bsize, + pc_tree); + } + + *rate = chosen_rdc.rate; + *dist = chosen_rdc.dist; +} + +static const BLOCK_SIZE min_partition_size[BLOCK_SIZES] = { + BLOCK_4X4, BLOCK_4X4, BLOCK_4X4, BLOCK_4X4, BLOCK_4X4, + BLOCK_4X4, BLOCK_8X8, BLOCK_8X8, BLOCK_8X8, BLOCK_16X16, + BLOCK_16X16, BLOCK_16X16, BLOCK_16X16 +}; + +static const BLOCK_SIZE max_partition_size[BLOCK_SIZES] = { + BLOCK_8X8, BLOCK_16X16, BLOCK_16X16, BLOCK_16X16, BLOCK_32X32, + BLOCK_32X32, BLOCK_32X32, BLOCK_64X64, BLOCK_64X64, BLOCK_64X64, + BLOCK_64X64, BLOCK_64X64, BLOCK_64X64 +}; + +// Look at all the mode_info entries for blocks that are part of this +// partition and find the min and max values for sb_type. +// At the moment this is designed to work on a 64x64 SB but could be +// adjusted to use a size parameter. +// +// The min and max are assumed to have been initialized prior to calling this +// function so repeat calls can accumulate a min and max of more than one sb64. +static void get_sb_partition_size_range(MACROBLOCKD *xd, MODE_INFO **mi_8x8, + BLOCK_SIZE *min_block_size, + BLOCK_SIZE *max_block_size, + int bs_hist[BLOCK_SIZES]) { + int sb_width_in_blocks = MI_BLOCK_SIZE; + int sb_height_in_blocks = MI_BLOCK_SIZE; + int i, j; + int index = 0; + + // Check the sb_type for each block that belongs to this region. + for (i = 0; i < sb_height_in_blocks; ++i) { + for (j = 0; j < sb_width_in_blocks; ++j) { + MODE_INFO *mi = mi_8x8[index + j]; + BLOCK_SIZE sb_type = mi ? mi->sb_type : 0; + bs_hist[sb_type]++; + *min_block_size = VPXMIN(*min_block_size, sb_type); + *max_block_size = VPXMAX(*max_block_size, sb_type); + } + index += xd->mi_stride; + } +} + +// Next square block size less or equal than current block size. +static const BLOCK_SIZE next_square_size[BLOCK_SIZES] = { + BLOCK_4X4, BLOCK_4X4, BLOCK_4X4, BLOCK_8X8, BLOCK_8X8, + BLOCK_8X8, BLOCK_16X16, BLOCK_16X16, BLOCK_16X16, BLOCK_32X32, + BLOCK_32X32, BLOCK_32X32, BLOCK_64X64 +}; + +// Look at neighboring blocks and set a min and max partition size based on +// what they chose. +static void rd_auto_partition_range(VP9_COMP *cpi, const TileInfo *const tile, + MACROBLOCKD *const xd, int mi_row, + int mi_col, BLOCK_SIZE *min_block_size, + BLOCK_SIZE *max_block_size) { + VP9_COMMON *const cm = &cpi->common; + MODE_INFO **mi = xd->mi; + const int left_in_image = !!xd->left_mi; + const int above_in_image = !!xd->above_mi; + const int row8x8_remaining = tile->mi_row_end - mi_row; + const int col8x8_remaining = tile->mi_col_end - mi_col; + int bh, bw; + BLOCK_SIZE min_size = BLOCK_4X4; + BLOCK_SIZE max_size = BLOCK_64X64; + int bs_hist[BLOCK_SIZES] = { 0 }; + + // Trap case where we do not have a prediction. + if (left_in_image || above_in_image || cm->frame_type != KEY_FRAME) { + // Default "min to max" and "max to min" + min_size = BLOCK_64X64; + max_size = BLOCK_4X4; + + // NOTE: each call to get_sb_partition_size_range() uses the previous + // passed in values for min and max as a starting point. + // Find the min and max partition used in previous frame at this location + if (cm->frame_type != KEY_FRAME) { + MODE_INFO **prev_mi = + &cm->prev_mi_grid_visible[mi_row * xd->mi_stride + mi_col]; + get_sb_partition_size_range(xd, prev_mi, &min_size, &max_size, bs_hist); + } + // Find the min and max partition sizes used in the left SB64 + if (left_in_image) { + MODE_INFO **left_sb64_mi = &mi[-MI_BLOCK_SIZE]; + get_sb_partition_size_range(xd, left_sb64_mi, &min_size, &max_size, + bs_hist); + } + // Find the min and max partition sizes used in the above SB64. + if (above_in_image) { + MODE_INFO **above_sb64_mi = &mi[-xd->mi_stride * MI_BLOCK_SIZE]; + get_sb_partition_size_range(xd, above_sb64_mi, &min_size, &max_size, + bs_hist); + } + + // Adjust observed min and max for "relaxed" auto partition case. + if (cpi->sf.auto_min_max_partition_size == RELAXED_NEIGHBORING_MIN_MAX) { + min_size = min_partition_size[min_size]; + max_size = max_partition_size[max_size]; + } + } + + // Check border cases where max and min from neighbors may not be legal. + max_size = find_partition_size(max_size, row8x8_remaining, col8x8_remaining, + &bh, &bw); + // Test for blocks at the edge of the active image. + // This may be the actual edge of the image or where there are formatting + // bars. + if (vp9_active_edge_sb(cpi, mi_row, mi_col)) { + min_size = BLOCK_4X4; + } else { + min_size = + VPXMIN(cpi->sf.rd_auto_partition_min_limit, VPXMIN(min_size, max_size)); + } + + // When use_square_partition_only is true, make sure at least one square + // partition is allowed by selecting the next smaller square size as + // *min_block_size. + if (cpi->sf.use_square_partition_only && + next_square_size[max_size] < min_size) { + min_size = next_square_size[max_size]; + } + + *min_block_size = min_size; + *max_block_size = max_size; +} + +// TODO(jingning) refactor functions setting partition search range +static void set_partition_range(VP9_COMMON *cm, MACROBLOCKD *xd, int mi_row, + int mi_col, BLOCK_SIZE bsize, + BLOCK_SIZE *min_bs, BLOCK_SIZE *max_bs) { + int mi_width = num_8x8_blocks_wide_lookup[bsize]; + int mi_height = num_8x8_blocks_high_lookup[bsize]; + int idx, idy; + + MODE_INFO *mi; + const int idx_str = cm->mi_stride * mi_row + mi_col; + MODE_INFO **prev_mi = &cm->prev_mi_grid_visible[idx_str]; + BLOCK_SIZE bs, min_size, max_size; + + min_size = BLOCK_64X64; + max_size = BLOCK_4X4; + + for (idy = 0; idy < mi_height; ++idy) { + for (idx = 0; idx < mi_width; ++idx) { + mi = prev_mi[idy * cm->mi_stride + idx]; + bs = mi ? mi->sb_type : bsize; + min_size = VPXMIN(min_size, bs); + max_size = VPXMAX(max_size, bs); + } + } + + if (xd->left_mi) { + for (idy = 0; idy < mi_height; ++idy) { + mi = xd->mi[idy * cm->mi_stride - 1]; + bs = mi ? mi->sb_type : bsize; + min_size = VPXMIN(min_size, bs); + max_size = VPXMAX(max_size, bs); + } + } + + if (xd->above_mi) { + for (idx = 0; idx < mi_width; ++idx) { + mi = xd->mi[idx - cm->mi_stride]; + bs = mi ? mi->sb_type : bsize; + min_size = VPXMIN(min_size, bs); + max_size = VPXMAX(max_size, bs); + } + } + + if (min_size == max_size) { + min_size = min_partition_size[min_size]; + max_size = max_partition_size[max_size]; + } + + *min_bs = min_size; + *max_bs = max_size; +} +#endif // !CONFIG_REALTIME_ONLY + +static INLINE void store_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) { + memcpy(ctx->pred_mv, x->pred_mv, sizeof(x->pred_mv)); +} + +static INLINE void load_pred_mv(MACROBLOCK *x, PICK_MODE_CONTEXT *ctx) { + memcpy(x->pred_mv, ctx->pred_mv, sizeof(x->pred_mv)); +} + +// Calculate prediction based on the given input features and neural net config. +// Assume there are no more than NN_MAX_NODES_PER_LAYER nodes in each hidden +// layer. +static void nn_predict(const float *features, const NN_CONFIG *nn_config, + float *output) { + int num_input_nodes = nn_config->num_inputs; + int buf_index = 0; + float buf[2][NN_MAX_NODES_PER_LAYER]; + const float *input_nodes = features; + + // Propagate hidden layers. + const int num_layers = nn_config->num_hidden_layers; + int layer, node, i; + assert(num_layers <= NN_MAX_HIDDEN_LAYERS); + for (layer = 0; layer < num_layers; ++layer) { + const float *weights = nn_config->weights[layer]; + const float *bias = nn_config->bias[layer]; + float *output_nodes = buf[buf_index]; + const int num_output_nodes = nn_config->num_hidden_nodes[layer]; + assert(num_output_nodes < NN_MAX_NODES_PER_LAYER); + for (node = 0; node < num_output_nodes; ++node) { + float val = 0.0f; + for (i = 0; i < num_input_nodes; ++i) val += weights[i] * input_nodes[i]; + val += bias[node]; + // ReLU as activation function. + val = VPXMAX(val, 0.0f); + output_nodes[node] = val; + weights += num_input_nodes; + } + num_input_nodes = num_output_nodes; + input_nodes = output_nodes; + buf_index = 1 - buf_index; + } + + // Final output layer. + { + const float *weights = nn_config->weights[num_layers]; + for (node = 0; node < nn_config->num_outputs; ++node) { + const float *bias = nn_config->bias[num_layers]; + float val = 0.0f; + for (i = 0; i < num_input_nodes; ++i) val += weights[i] * input_nodes[i]; + output[node] = val + bias[node]; + weights += num_input_nodes; + } + } +} + +#if !CONFIG_REALTIME_ONLY +#define FEATURES 7 +// Machine-learning based partition search early termination. +// Return 1 to skip split and rect partitions. +static int ml_pruning_partition(VP9_COMMON *const cm, MACROBLOCKD *const xd, + PICK_MODE_CONTEXT *ctx, int mi_row, int mi_col, + BLOCK_SIZE bsize) { + const int mag_mv = + abs(ctx->mic.mv[0].as_mv.col) + abs(ctx->mic.mv[0].as_mv.row); + const int left_in_image = !!xd->left_mi; + const int above_in_image = !!xd->above_mi; + MODE_INFO **prev_mi = + &cm->prev_mi_grid_visible[mi_col + cm->mi_stride * mi_row]; + int above_par = 0; // above_partitioning + int left_par = 0; // left_partitioning + int last_par = 0; // last_partitioning + int offset = 0; + int i; + BLOCK_SIZE context_size; + const NN_CONFIG *nn_config = NULL; + const float *mean, *sd, *linear_weights; + float nn_score, linear_score; + float features[FEATURES]; + + assert(b_width_log2_lookup[bsize] == b_height_log2_lookup[bsize]); + vpx_clear_system_state(); + + switch (bsize) { + case BLOCK_64X64: + offset = 0; + nn_config = &vp9_partition_nnconfig_64x64; + break; + case BLOCK_32X32: + offset = 8; + nn_config = &vp9_partition_nnconfig_32x32; + break; + case BLOCK_16X16: + offset = 16; + nn_config = &vp9_partition_nnconfig_16x16; + break; + default: assert(0 && "Unexpected block size."); return 0; + } + + if (above_in_image) { + context_size = xd->above_mi->sb_type; + if (context_size < bsize) + above_par = 2; + else if (context_size == bsize) + above_par = 1; + } + + if (left_in_image) { + context_size = xd->left_mi->sb_type; + if (context_size < bsize) + left_par = 2; + else if (context_size == bsize) + left_par = 1; + } + + if (prev_mi[0]) { + context_size = prev_mi[0]->sb_type; + if (context_size < bsize) + last_par = 2; + else if (context_size == bsize) + last_par = 1; + } + + mean = &vp9_partition_feature_mean[offset]; + sd = &vp9_partition_feature_std[offset]; + features[0] = ((float)ctx->rate - mean[0]) / sd[0]; + features[1] = ((float)ctx->dist - mean[1]) / sd[1]; + features[2] = ((float)mag_mv / 2 - mean[2]) * sd[2]; + features[3] = ((float)(left_par + above_par) / 2 - mean[3]) * sd[3]; + features[4] = ((float)ctx->sum_y_eobs - mean[4]) / sd[4]; + features[5] = ((float)cm->base_qindex - mean[5]) * sd[5]; + features[6] = ((float)last_par - mean[6]) * sd[6]; + + // Predict using linear model. + linear_weights = &vp9_partition_linear_weights[offset]; + linear_score = linear_weights[FEATURES]; + for (i = 0; i < FEATURES; ++i) + linear_score += linear_weights[i] * features[i]; + if (linear_score > 0.1f) return 0; + + // Predict using neural net model. + nn_predict(features, nn_config, &nn_score); + + if (linear_score < -0.0f && nn_score < 0.1f) return 1; + if (nn_score < -0.0f && linear_score < 0.1f) return 1; + return 0; +} +#undef FEATURES + +#define FEATURES 4 +// ML-based partition search breakout. +static int ml_predict_breakout(VP9_COMP *const cpi, BLOCK_SIZE bsize, + const MACROBLOCK *const x, + const RD_COST *const rd_cost) { + DECLARE_ALIGNED(16, static const uint8_t, vp9_64_zeros[64]) = { 0 }; + const VP9_COMMON *const cm = &cpi->common; + float features[FEATURES]; + const float *linear_weights = NULL; // Linear model weights. + float linear_score = 0.0f; + const int qindex = cm->base_qindex; + const int q_ctx = qindex >= 200 ? 0 : (qindex >= 150 ? 1 : 2); + const int is_720p_or_larger = VPXMIN(cm->width, cm->height) >= 720; + const int resolution_ctx = is_720p_or_larger ? 1 : 0; + + switch (bsize) { + case BLOCK_64X64: + linear_weights = vp9_partition_breakout_weights_64[resolution_ctx][q_ctx]; + break; + case BLOCK_32X32: + linear_weights = vp9_partition_breakout_weights_32[resolution_ctx][q_ctx]; + break; + case BLOCK_16X16: + linear_weights = vp9_partition_breakout_weights_16[resolution_ctx][q_ctx]; + break; + case BLOCK_8X8: + linear_weights = vp9_partition_breakout_weights_8[resolution_ctx][q_ctx]; + break; + default: assert(0 && "Unexpected block size."); return 0; + } + if (!linear_weights) return 0; + + { // Generate feature values. +#if CONFIG_VP9_HIGHBITDEPTH + const int ac_q = + vp9_ac_quant(cm->base_qindex, 0, cm->bit_depth) >> (x->e_mbd.bd - 8); +#else + const int ac_q = vp9_ac_quant(qindex, 0, cm->bit_depth); +#endif // CONFIG_VP9_HIGHBITDEPTH + const int num_pels_log2 = num_pels_log2_lookup[bsize]; + int feature_index = 0; + unsigned int var, sse; + float rate_f, dist_f; + +#if CONFIG_VP9_HIGHBITDEPTH + if (x->e_mbd.cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) { + var = + vp9_high_get_sby_variance(cpi, &x->plane[0].src, bsize, x->e_mbd.bd); + } else { + var = cpi->fn_ptr[bsize].vf(x->plane[0].src.buf, x->plane[0].src.stride, + vp9_64_zeros, 0, &sse); + } +#else + var = cpi->fn_ptr[bsize].vf(x->plane[0].src.buf, x->plane[0].src.stride, + vp9_64_zeros, 0, &sse); +#endif + var = var >> num_pels_log2; + + vpx_clear_system_state(); + + rate_f = (float)VPXMIN(rd_cost->rate, INT_MAX); + dist_f = (float)(VPXMIN(rd_cost->dist, INT_MAX) >> num_pels_log2); + rate_f = + ((float)x->rdmult / 128.0f / 512.0f / (float)(1 << num_pels_log2)) * + rate_f; + + features[feature_index++] = rate_f; + features[feature_index++] = dist_f; + features[feature_index++] = (float)var; + features[feature_index++] = (float)ac_q; + assert(feature_index == FEATURES); + } + + { // Calculate the output score. + int i; + linear_score = linear_weights[FEATURES]; + for (i = 0; i < FEATURES; ++i) + linear_score += linear_weights[i] * features[i]; + } + + return linear_score >= cpi->sf.rd_ml_partition.search_breakout_thresh[q_ctx]; +} +#undef FEATURES + +#define FEATURES 8 +#define LABELS 4 +static void ml_prune_rect_partition(VP9_COMP *const cpi, MACROBLOCK *const x, + BLOCK_SIZE bsize, + const PC_TREE *const pc_tree, + int *allow_horz, int *allow_vert, + int64_t ref_rd) { + const NN_CONFIG *nn_config = NULL; + float score[LABELS] = { + 0.0f, + }; + int thresh = -1; + int i; + (void)x; + + if (ref_rd <= 0 || ref_rd > 1000000000) return; + + switch (bsize) { + case BLOCK_8X8: break; + case BLOCK_16X16: + nn_config = &vp9_rect_part_nnconfig_16; + thresh = cpi->sf.rd_ml_partition.prune_rect_thresh[1]; + break; + case BLOCK_32X32: + nn_config = &vp9_rect_part_nnconfig_32; + thresh = cpi->sf.rd_ml_partition.prune_rect_thresh[2]; + break; + case BLOCK_64X64: + nn_config = &vp9_rect_part_nnconfig_64; + thresh = cpi->sf.rd_ml_partition.prune_rect_thresh[3]; + break; + default: assert(0 && "Unexpected block size."); return; + } + if (!nn_config || thresh < 0) return; + + // Feature extraction and model score calculation. + { + const VP9_COMMON *const cm = &cpi->common; +#if CONFIG_VP9_HIGHBITDEPTH + const int dc_q = + vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth) >> (x->e_mbd.bd - 8); +#else + const int dc_q = vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth); +#endif // CONFIG_VP9_HIGHBITDEPTH + const int bs = 4 * num_4x4_blocks_wide_lookup[bsize]; + int feature_index = 0; + float features[FEATURES]; + + features[feature_index++] = logf((float)dc_q + 1.0f); + features[feature_index++] = + (float)(pc_tree->partitioning == PARTITION_NONE); + features[feature_index++] = logf((float)ref_rd / bs / bs + 1.0f); + + { + const float norm_factor = 1.0f / ((float)ref_rd + 1.0f); + const int64_t none_rdcost = pc_tree->none.rdcost; + float rd_ratio = 2.0f; + if (none_rdcost > 0 && none_rdcost < 1000000000) + rd_ratio = (float)none_rdcost * norm_factor; + features[feature_index++] = VPXMIN(rd_ratio, 2.0f); + + for (i = 0; i < 4; ++i) { + const int64_t this_rd = pc_tree->split[i]->none.rdcost; + const int rd_valid = this_rd > 0 && this_rd < 1000000000; + // Ratio between sub-block RD and whole block RD. + features[feature_index++] = + rd_valid ? (float)this_rd * norm_factor : 1.0f; + } + } + + assert(feature_index == FEATURES); + nn_predict(features, nn_config, score); + } + + // Make decisions based on the model score. + { + int max_score = -1000; + int horz = 0, vert = 0; + int int_score[LABELS]; + for (i = 0; i < LABELS; ++i) { + int_score[i] = (int)(100 * score[i]); + max_score = VPXMAX(int_score[i], max_score); + } + thresh = max_score - thresh; + for (i = 0; i < LABELS; ++i) { + if (int_score[i] >= thresh) { + if ((i >> 0) & 1) horz = 1; + if ((i >> 1) & 1) vert = 1; + } + } + *allow_horz = *allow_horz && horz; + *allow_vert = *allow_vert && vert; + } +} +#undef FEATURES +#undef LABELS + +// Perform fast and coarse motion search for the given block. This is a +// pre-processing step for the ML based partition search speedup. +static void simple_motion_search(const VP9_COMP *const cpi, MACROBLOCK *const x, + BLOCK_SIZE bsize, int mi_row, int mi_col, + MV ref_mv, MV_REFERENCE_FRAME ref, + uint8_t *const pred_buf) { + const VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *const mi = xd->mi[0]; + YV12_BUFFER_CONFIG *yv12; + YV12_BUFFER_CONFIG *scaled_ref_frame = vp9_get_scaled_ref_frame(cpi, ref); + const int step_param = 1; + const MvLimits tmp_mv_limits = x->mv_limits; + const SEARCH_METHODS search_method = NSTEP; + const int sadpb = x->sadperbit16; + MV ref_mv_full = { ref_mv.row >> 3, ref_mv.col >> 3 }; + MV best_mv = { 0, 0 }; + int cost_list[5]; + struct buf_2d backup_pre[MAX_MB_PLANE] = { { 0, 0 } }; + + if (scaled_ref_frame) { + yv12 = scaled_ref_frame; + // As reported in b/311294795, the reference buffer pointer needs to be + // saved and restored after the search. Otherwise, it causes problems while + // the reference frame scaling happens. + for (int i = 0; i < MAX_MB_PLANE; i++) backup_pre[i] = xd->plane[i].pre[0]; + } else { + yv12 = get_ref_frame_buffer(cpi, ref); + } + + assert(yv12 != NULL); + if (!yv12) return; + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, NULL); + mi->ref_frame[0] = ref; + mi->ref_frame[1] = NO_REF_FRAME; + mi->sb_type = bsize; + vp9_set_mv_search_range(&x->mv_limits, &ref_mv); + vp9_full_pixel_search(cpi, x, bsize, &ref_mv_full, step_param, search_method, + sadpb, cond_cost_list(cpi, cost_list), &ref_mv, + &best_mv, 0, 0); + best_mv.row *= 8; + best_mv.col *= 8; + x->mv_limits = tmp_mv_limits; + mi->mv[0].as_mv = best_mv; + + // Restore reference buffer pointer. + if (scaled_ref_frame) { + for (int i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_pre[i]; + } + + set_ref_ptrs(cm, xd, mi->ref_frame[0], mi->ref_frame[1]); + xd->plane[0].dst.buf = pred_buf; + xd->plane[0].dst.stride = 64; + vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize); +} + +// Use a neural net model to prune partition-none and partition-split search. +// Features used: QP; spatial block size contexts; variance of prediction +// residue after simple_motion_search. +#define FEATURES 12 +static void ml_predict_var_rd_partitioning(const VP9_COMP *const cpi, + MACROBLOCK *const x, + PC_TREE *const pc_tree, + BLOCK_SIZE bsize, int mi_row, + int mi_col, int *none, int *split) { + const VP9_COMMON *const cm = &cpi->common; + const NN_CONFIG *nn_config = NULL; + const MACROBLOCKD *const xd = &x->e_mbd; +#if CONFIG_VP9_HIGHBITDEPTH + DECLARE_ALIGNED(16, uint8_t, pred_buffer[64 * 64 * 2]); + uint8_t *const pred_buf = (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) + ? (CONVERT_TO_BYTEPTR(pred_buffer)) + : pred_buffer; +#else + DECLARE_ALIGNED(16, uint8_t, pred_buffer[64 * 64]); + uint8_t *const pred_buf = pred_buffer; +#endif // CONFIG_VP9_HIGHBITDEPTH + const int speed = cpi->oxcf.speed; + float thresh = 0.0f; + + switch (bsize) { + case BLOCK_64X64: + nn_config = &vp9_part_split_nnconfig_64; + thresh = speed > 0 ? 2.8f : 3.0f; + break; + case BLOCK_32X32: + nn_config = &vp9_part_split_nnconfig_32; + thresh = speed > 0 ? 3.5f : 3.0f; + break; + case BLOCK_16X16: + nn_config = &vp9_part_split_nnconfig_16; + thresh = speed > 0 ? 3.8f : 4.0f; + break; + case BLOCK_8X8: + nn_config = &vp9_part_split_nnconfig_8; + if (cm->width >= 720 && cm->height >= 720) + thresh = speed > 0 ? 2.5f : 2.0f; + else + thresh = speed > 0 ? 3.8f : 2.0f; + break; + default: assert(0 && "Unexpected block size."); return; + } + + if (!nn_config) return; + + // Do a simple single motion search to find a prediction for current block. + // The variance of the residue will be used as input features. + { + MV ref_mv; + const MV_REFERENCE_FRAME ref = + cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME : LAST_FRAME; + // If bsize is 64x64, use zero MV as reference; otherwise, use MV result + // of previous(larger) block as reference. + if (bsize == BLOCK_64X64) + ref_mv.row = ref_mv.col = 0; + else + ref_mv = pc_tree->mv; + vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col); + simple_motion_search(cpi, x, bsize, mi_row, mi_col, ref_mv, ref, pred_buf); + pc_tree->mv = x->e_mbd.mi[0]->mv[0].as_mv; + } + + vpx_clear_system_state(); + + { + float features[FEATURES] = { 0.0f }; +#if CONFIG_VP9_HIGHBITDEPTH + const int dc_q = + vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth) >> (xd->bd - 8); +#else + const int dc_q = vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth); +#endif // CONFIG_VP9_HIGHBITDEPTH + int feature_idx = 0; + float score; + + // Generate model input features. + features[feature_idx++] = logf((float)dc_q + 1.0f); + + // Get the variance of the residue as input features. + { + const int bs = 4 * num_4x4_blocks_wide_lookup[bsize]; + const BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_SPLIT); + const uint8_t *pred = pred_buf; + const uint8_t *src = x->plane[0].src.buf; + const int src_stride = x->plane[0].src.stride; + const int pred_stride = 64; + unsigned int sse; + // Variance of whole block. + const unsigned int var = + cpi->fn_ptr[bsize].vf(src, src_stride, pred, pred_stride, &sse); + const float factor = (var == 0) ? 1.0f : (1.0f / (float)var); + const int has_above = !!xd->above_mi; + const int has_left = !!xd->left_mi; + const BLOCK_SIZE above_bsize = has_above ? xd->above_mi->sb_type : bsize; + const BLOCK_SIZE left_bsize = has_left ? xd->left_mi->sb_type : bsize; + int i; + + features[feature_idx++] = (float)has_above; + features[feature_idx++] = (float)b_width_log2_lookup[above_bsize]; + features[feature_idx++] = (float)b_height_log2_lookup[above_bsize]; + features[feature_idx++] = (float)has_left; + features[feature_idx++] = (float)b_width_log2_lookup[left_bsize]; + features[feature_idx++] = (float)b_height_log2_lookup[left_bsize]; + features[feature_idx++] = logf((float)var + 1.0f); + for (i = 0; i < 4; ++i) { + const int x_idx = (i & 1) * bs / 2; + const int y_idx = (i >> 1) * bs / 2; + const int src_offset = y_idx * src_stride + x_idx; + const int pred_offset = y_idx * pred_stride + x_idx; + // Variance of quarter block. + const unsigned int sub_var = + cpi->fn_ptr[subsize].vf(src + src_offset, src_stride, + pred + pred_offset, pred_stride, &sse); + const float var_ratio = (var == 0) ? 1.0f : factor * (float)sub_var; + features[feature_idx++] = var_ratio; + } + } + assert(feature_idx == FEATURES); + + // Feed the features into the model to get the confidence score. + nn_predict(features, nn_config, &score); + + // Higher score means that the model has higher confidence that the split + // partition is better than the non-split partition. So if the score is + // high enough, we skip the none-split partition search; if the score is + // low enough, we skip the split partition search. + if (score > thresh) *none = 0; + if (score < -thresh) *split = 0; + } +} +#undef FEATURES +#endif // !CONFIG_REALTIME_ONLY + +static double log_wiener_var(int64_t wiener_variance) { + return log(1.0 + wiener_variance) / log(2.0); +} + +static void build_kmeans_segmentation(VP9_COMP *cpi) { + VP9_COMMON *cm = &cpi->common; + BLOCK_SIZE bsize = BLOCK_64X64; + KMEANS_DATA *kmeans_data; + + vp9_disable_segmentation(&cm->seg); + if (cm->show_frame) { + int mi_row, mi_col; + cpi->kmeans_data_size = 0; + cpi->kmeans_ctr_num = 8; + + for (mi_row = 0; mi_row < cm->mi_rows; mi_row += MI_BLOCK_SIZE) { + for (mi_col = 0; mi_col < cm->mi_cols; mi_col += MI_BLOCK_SIZE) { + int mb_row_start = mi_row >> 1; + int mb_col_start = mi_col >> 1; + int mb_row_end = VPXMIN( + (mi_row + num_8x8_blocks_high_lookup[bsize]) >> 1, cm->mb_rows); + int mb_col_end = VPXMIN( + (mi_col + num_8x8_blocks_wide_lookup[bsize]) >> 1, cm->mb_cols); + int row, col; + int64_t wiener_variance = 0; + + for (row = mb_row_start; row < mb_row_end; ++row) + for (col = mb_col_start; col < mb_col_end; ++col) + wiener_variance += cpi->mb_wiener_variance[row * cm->mb_cols + col]; + + wiener_variance /= + (mb_row_end - mb_row_start) * (mb_col_end - mb_col_start); + +#if CONFIG_MULTITHREAD + pthread_mutex_lock(&cpi->kmeans_mutex); +#endif // CONFIG_MULTITHREAD + + kmeans_data = &cpi->kmeans_data_arr[cpi->kmeans_data_size++]; + kmeans_data->value = log_wiener_var(wiener_variance); + kmeans_data->pos = mi_row * cpi->kmeans_data_stride + mi_col; +#if CONFIG_MULTITHREAD + pthread_mutex_unlock(&cpi->kmeans_mutex); +#endif // CONFIG_MULTITHREAD + } + } + + vp9_kmeans(cpi->kmeans_ctr_ls, cpi->kmeans_boundary_ls, + cpi->kmeans_count_ls, cpi->kmeans_ctr_num, cpi->kmeans_data_arr, + cpi->kmeans_data_size); + + vp9_perceptual_aq_mode_setup(cpi, &cm->seg); + } +} + +#if !CONFIG_REALTIME_ONLY +static int wiener_var_segment(VP9_COMP *cpi, BLOCK_SIZE bsize, int mi_row, + int mi_col) { + VP9_COMMON *cm = &cpi->common; + int mb_row_start = mi_row >> 1; + int mb_col_start = mi_col >> 1; + int mb_row_end = + VPXMIN((mi_row + num_8x8_blocks_high_lookup[bsize]) >> 1, cm->mb_rows); + int mb_col_end = + VPXMIN((mi_col + num_8x8_blocks_wide_lookup[bsize]) >> 1, cm->mb_cols); + int row, col, idx; + int64_t wiener_variance = 0; + int segment_id; + int8_t seg_hist[MAX_SEGMENTS] = { 0 }; + int8_t max_count = 0, max_index = -1; + + vpx_clear_system_state(); + + assert(cpi->norm_wiener_variance > 0); + + for (row = mb_row_start; row < mb_row_end; ++row) { + for (col = mb_col_start; col < mb_col_end; ++col) { + wiener_variance = cpi->mb_wiener_variance[row * cm->mb_cols + col]; + segment_id = + vp9_get_group_idx(log_wiener_var(wiener_variance), + cpi->kmeans_boundary_ls, cpi->kmeans_ctr_num); + ++seg_hist[segment_id]; + } + } + + for (idx = 0; idx < cpi->kmeans_ctr_num; ++idx) { + if (seg_hist[idx] > max_count) { + max_count = seg_hist[idx]; + max_index = idx; + } + } + + assert(max_index >= 0); + segment_id = max_index; + + return segment_id; +} + +static int get_rdmult_delta(VP9_COMP *cpi, BLOCK_SIZE bsize, int mi_row, + int mi_col, int orig_rdmult) { + const int gf_group_index = cpi->twopass.gf_group.index; + int64_t intra_cost = 0; + int64_t mc_dep_cost = 0; + int mi_wide = num_8x8_blocks_wide_lookup[bsize]; + int mi_high = num_8x8_blocks_high_lookup[bsize]; + int row, col; + + int dr = 0; + double r0, rk, beta; + + TplDepFrame *tpl_frame; + TplDepStats *tpl_stats; + int tpl_stride; + + if (gf_group_index >= MAX_ARF_GOP_SIZE) return orig_rdmult; + tpl_frame = &cpi->tpl_stats[gf_group_index]; + + if (tpl_frame->is_valid == 0) return orig_rdmult; + tpl_stats = tpl_frame->tpl_stats_ptr; + tpl_stride = tpl_frame->stride; + + if (cpi->twopass.gf_group.layer_depth[gf_group_index] > 1) return orig_rdmult; + + for (row = mi_row; row < mi_row + mi_high; ++row) { + for (col = mi_col; col < mi_col + mi_wide; ++col) { + TplDepStats *this_stats = &tpl_stats[row * tpl_stride + col]; + + if (row >= cpi->common.mi_rows || col >= cpi->common.mi_cols) continue; + + intra_cost += this_stats->intra_cost; + mc_dep_cost += this_stats->mc_dep_cost; + } + } + + vpx_clear_system_state(); + + r0 = cpi->rd.r0; + rk = (double)intra_cost / mc_dep_cost; + beta = r0 / rk; + dr = vp9_get_adaptive_rdmult(cpi, beta); + + dr = VPXMIN(dr, orig_rdmult * 3 / 2); + dr = VPXMAX(dr, orig_rdmult * 1 / 2); + + dr = VPXMAX(1, dr); + + return dr; +} +#endif // !CONFIG_REALTIME_ONLY + +#if CONFIG_RATE_CTRL +static void assign_partition_info( + const int row_start_4x4, const int col_start_4x4, const int block_width_4x4, + const int block_height_4x4, const int num_unit_rows, + const int num_unit_cols, PARTITION_INFO *partition_info) { + int i, j; + for (i = 0; i < block_height_4x4; ++i) { + for (j = 0; j < block_width_4x4; ++j) { + const int row_4x4 = row_start_4x4 + i; + const int col_4x4 = col_start_4x4 + j; + const int unit_index = row_4x4 * num_unit_cols + col_4x4; + if (row_4x4 >= num_unit_rows || col_4x4 >= num_unit_cols) continue; + partition_info[unit_index].row = row_4x4 << 2; + partition_info[unit_index].column = col_4x4 << 2; + partition_info[unit_index].row_start = row_start_4x4 << 2; + partition_info[unit_index].column_start = col_start_4x4 << 2; + partition_info[unit_index].width = block_width_4x4 << 2; + partition_info[unit_index].height = block_height_4x4 << 2; + } + } +} + +static void assign_motion_vector_info(const int block_width_4x4, + const int block_height_4x4, + const int row_start_4x4, + const int col_start_4x4, + const int num_unit_rows, + const int num_unit_cols, MV *source_mv[2], + MV_REFERENCE_FRAME source_ref_frame[2], + MOTION_VECTOR_INFO *motion_vector_info) { + int i, j; + for (i = 0; i < block_height_4x4; ++i) { + for (j = 0; j < block_width_4x4; ++j) { + const int row_4x4 = row_start_4x4 + i; + const int col_4x4 = col_start_4x4 + j; + const int unit_index = row_4x4 * num_unit_cols + col_4x4; + if (row_4x4 >= num_unit_rows || col_4x4 >= num_unit_cols) continue; + if (source_ref_frame[1] == NO_REF_FRAME) { + assert(source_mv[1]->row == 0 && source_mv[1]->col == 0); + } + motion_vector_info[unit_index].ref_frame[0] = source_ref_frame[0]; + motion_vector_info[unit_index].ref_frame[1] = source_ref_frame[1]; + motion_vector_info[unit_index].mv[0].as_mv.row = source_mv[0]->row; + motion_vector_info[unit_index].mv[0].as_mv.col = source_mv[0]->col; + motion_vector_info[unit_index].mv[1].as_mv.row = source_mv[1]->row; + motion_vector_info[unit_index].mv[1].as_mv.col = source_mv[1]->col; + } + } +} + +static void store_superblock_info( + const PC_TREE *const pc_tree, MODE_INFO **mi_grid_visible, + const int mi_stride, const int square_size_4x4, const int num_unit_rows, + const int num_unit_cols, const int row_start_4x4, const int col_start_4x4, + PARTITION_INFO *partition_info, MOTION_VECTOR_INFO *motion_vector_info) { + const int subblock_square_size_4x4 = square_size_4x4 >> 1; + if (row_start_4x4 >= num_unit_rows || col_start_4x4 >= num_unit_cols) return; + assert(pc_tree->partitioning != PARTITION_INVALID); + // End node, no split. + if (pc_tree->partitioning == PARTITION_NONE || + pc_tree->partitioning == PARTITION_HORZ || + pc_tree->partitioning == PARTITION_VERT || square_size_4x4 == 1) { + const int mi_row = row_start_4x4 >> 1; + const int mi_col = col_start_4x4 >> 1; + const int mi_idx = mi_stride * mi_row + mi_col; + MODE_INFO **mi = mi_grid_visible + mi_idx; + MV *source_mv[2]; + MV_REFERENCE_FRAME source_ref_frame[2]; + + // partition info + const int block_width_4x4 = (pc_tree->partitioning == PARTITION_VERT) + ? square_size_4x4 >> 1 + : square_size_4x4; + const int block_height_4x4 = (pc_tree->partitioning == PARTITION_HORZ) + ? square_size_4x4 >> 1 + : square_size_4x4; + assign_partition_info(row_start_4x4, col_start_4x4, block_width_4x4, + block_height_4x4, num_unit_rows, num_unit_cols, + partition_info); + if (pc_tree->partitioning == PARTITION_VERT) { + assign_partition_info(row_start_4x4, col_start_4x4 + block_width_4x4, + block_width_4x4, block_height_4x4, num_unit_rows, + num_unit_cols, partition_info); + } else if (pc_tree->partitioning == PARTITION_HORZ) { + assign_partition_info(row_start_4x4 + block_height_4x4, col_start_4x4, + block_width_4x4, block_height_4x4, num_unit_rows, + num_unit_cols, partition_info); + } + + // motion vector info + if (pc_tree->partitioning == PARTITION_HORZ) { + int is_valid_second_rectangle = 0; + assert(square_size_4x4 > 1); + // First rectangle. + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->mv[0].as_mv; + source_mv[1] = &mi[0]->mv[1].as_mv; + assign_motion_vector_info(block_width_4x4, block_height_4x4, + row_start_4x4, col_start_4x4, num_unit_rows, + num_unit_cols, source_mv, source_ref_frame, + motion_vector_info); + // Second rectangle. + if (square_size_4x4 == 2) { + is_valid_second_rectangle = 1; + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->bmi[2].as_mv[0].as_mv; + source_mv[1] = &mi[0]->bmi[2].as_mv[1].as_mv; + } else { + const int mi_row_2 = mi_row + (block_height_4x4 >> 1); + const int mi_col_2 = mi_col; + if (mi_row_2 * 2 < num_unit_rows && mi_col_2 * 2 < num_unit_cols) { + const int mi_idx_2 = mi_stride * mi_row_2 + mi_col_2; + is_valid_second_rectangle = 1; + mi = mi_grid_visible + mi_idx_2; + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->mv[0].as_mv; + source_mv[1] = &mi[0]->mv[1].as_mv; + } + } + if (is_valid_second_rectangle) { + assign_motion_vector_info( + block_width_4x4, block_height_4x4, row_start_4x4 + block_height_4x4, + col_start_4x4, num_unit_rows, num_unit_cols, source_mv, + source_ref_frame, motion_vector_info); + } + } else if (pc_tree->partitioning == PARTITION_VERT) { + int is_valid_second_rectangle = 0; + assert(square_size_4x4 > 1); + // First rectangle. + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->mv[0].as_mv; + source_mv[1] = &mi[0]->mv[1].as_mv; + assign_motion_vector_info(block_width_4x4, block_height_4x4, + row_start_4x4, col_start_4x4, num_unit_rows, + num_unit_cols, source_mv, source_ref_frame, + motion_vector_info); + // Second rectangle. + if (square_size_4x4 == 2) { + is_valid_second_rectangle = 1; + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->bmi[1].as_mv[0].as_mv; + source_mv[1] = &mi[0]->bmi[1].as_mv[1].as_mv; + } else { + const int mi_row_2 = mi_row; + const int mi_col_2 = mi_col + (block_width_4x4 >> 1); + if (mi_row_2 * 2 < num_unit_rows && mi_col_2 * 2 < num_unit_cols) { + const int mi_idx_2 = mi_stride * mi_row_2 + mi_col_2; + is_valid_second_rectangle = 1; + mi = mi_grid_visible + mi_idx_2; + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + source_mv[0] = &mi[0]->mv[0].as_mv; + source_mv[1] = &mi[0]->mv[1].as_mv; + } + } + if (is_valid_second_rectangle) { + assign_motion_vector_info( + block_width_4x4, block_height_4x4, row_start_4x4, + col_start_4x4 + block_width_4x4, num_unit_rows, num_unit_cols, + source_mv, source_ref_frame, motion_vector_info); + } + } else { + assert(pc_tree->partitioning == PARTITION_NONE || square_size_4x4 == 1); + source_ref_frame[0] = mi[0]->ref_frame[0]; + source_ref_frame[1] = mi[0]->ref_frame[1]; + if (square_size_4x4 == 1) { + const int sub8x8_row = row_start_4x4 % 2; + const int sub8x8_col = col_start_4x4 % 2; + const int sub8x8_idx = sub8x8_row * 2 + sub8x8_col; + source_mv[0] = &mi[0]->bmi[sub8x8_idx].as_mv[0].as_mv; + source_mv[1] = &mi[0]->bmi[sub8x8_idx].as_mv[1].as_mv; + } else { + source_mv[0] = &mi[0]->mv[0].as_mv; + source_mv[1] = &mi[0]->mv[1].as_mv; + } + assign_motion_vector_info(block_width_4x4, block_height_4x4, + row_start_4x4, col_start_4x4, num_unit_rows, + num_unit_cols, source_mv, source_ref_frame, + motion_vector_info); + } + + return; + } + // recursively traverse partition tree when partition is split. + assert(pc_tree->partitioning == PARTITION_SPLIT); + store_superblock_info(pc_tree->split[0], mi_grid_visible, mi_stride, + subblock_square_size_4x4, num_unit_rows, num_unit_cols, + row_start_4x4, col_start_4x4, partition_info, + motion_vector_info); + store_superblock_info(pc_tree->split[1], mi_grid_visible, mi_stride, + subblock_square_size_4x4, num_unit_rows, num_unit_cols, + row_start_4x4, col_start_4x4 + subblock_square_size_4x4, + partition_info, motion_vector_info); + store_superblock_info(pc_tree->split[2], mi_grid_visible, mi_stride, + subblock_square_size_4x4, num_unit_rows, num_unit_cols, + row_start_4x4 + subblock_square_size_4x4, col_start_4x4, + partition_info, motion_vector_info); + store_superblock_info(pc_tree->split[3], mi_grid_visible, mi_stride, + subblock_square_size_4x4, num_unit_rows, num_unit_cols, + row_start_4x4 + subblock_square_size_4x4, + col_start_4x4 + subblock_square_size_4x4, + partition_info, motion_vector_info); +} +#endif // CONFIG_RATE_CTRL + +#if !CONFIG_REALTIME_ONLY +// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are +// unlikely to be selected depending on previous rate-distortion optimization +// results, for encoding speed-up. +static int rd_pick_partition(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, + int mi_row, int mi_col, BLOCK_SIZE bsize, + RD_COST *rd_cost, RD_COST best_rdc, + PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + const VP9EncoderConfig *const oxcf = &cpi->oxcf; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_step = num_8x8_blocks_wide_lookup[bsize] / 2; + ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE]; + PARTITION_CONTEXT sl[8], sa[8]; + TOKENEXTRA *tp_orig = *tp; + PICK_MODE_CONTEXT *const ctx = &pc_tree->none; + int i; + const int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + BLOCK_SIZE subsize; + RD_COST this_rdc, sum_rdc; + int do_split = bsize >= BLOCK_8X8; + int do_rect = 1; + INTERP_FILTER pred_interp_filter; + + // Override skipping rectangular partition operations for edge blocks + const int force_horz_split = (mi_row + mi_step >= cm->mi_rows); + const int force_vert_split = (mi_col + mi_step >= cm->mi_cols); + const int xss = x->e_mbd.plane[1].subsampling_x; + const int yss = x->e_mbd.plane[1].subsampling_y; + + BLOCK_SIZE min_size = x->min_partition_size; + BLOCK_SIZE max_size = x->max_partition_size; + + int partition_none_allowed = !force_horz_split && !force_vert_split; + int partition_horz_allowed = + !force_vert_split && yss <= xss && bsize >= BLOCK_8X8; + int partition_vert_allowed = + !force_horz_split && xss <= yss && bsize >= BLOCK_8X8; + + int64_t dist_breakout_thr = cpi->sf.partition_search_breakout_thr.dist; + int rate_breakout_thr = cpi->sf.partition_search_breakout_thr.rate; + int must_split = 0; + int should_encode_sb = 0; + + // Ref frames picked in the [i_th] quarter subblock during square partition + // RD search. It may be used to prune ref frame selection of rect partitions. + uint8_t ref_frames_used[4] = { 0, 0, 0, 0 }; + + int partition_mul = x->cb_rdmult; + + (void)*tp_orig; + + assert(num_8x8_blocks_wide_lookup[bsize] == + num_8x8_blocks_high_lookup[bsize]); + + dist_breakout_thr >>= + 8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); + + rate_breakout_thr *= num_pels_log2_lookup[bsize]; + + vp9_rd_cost_init(&this_rdc); + vp9_rd_cost_init(&sum_rdc); + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + if (oxcf->tuning == VP8_TUNE_SSIM) { + set_ssim_rdmult(cpi, x, bsize, mi_row, mi_col, &partition_mul); + } + vp9_rd_cost_update(partition_mul, x->rddiv, &best_rdc); + + if (bsize == BLOCK_16X16 && cpi->oxcf.aq_mode != NO_AQ && + cpi->oxcf.aq_mode != LOOKAHEAD_AQ) + x->mb_energy = vp9_block_energy(cpi, x, bsize); + + if (cpi->sf.cb_partition_search && bsize == BLOCK_16X16) { + int cb_partition_search_ctrl = + ((pc_tree->index == 0 || pc_tree->index == 3) + + get_chessboard_index(cm->current_video_frame)) & + 0x1; + + if (cb_partition_search_ctrl && bsize > min_size && bsize < max_size) + set_partition_range(cm, xd, mi_row, mi_col, bsize, &min_size, &max_size); + } + + // Get sub block energy range + if (bsize >= BLOCK_16X16) { + int min_energy, max_energy; + vp9_get_sub_block_energy(cpi, x, mi_row, mi_col, bsize, &min_energy, + &max_energy); + must_split = (min_energy < -3) && (max_energy - min_energy > 2); + } + + // Determine partition types in search according to the speed features. + // The threshold set here has to be of square block size. + if (cpi->sf.auto_min_max_partition_size) { + partition_none_allowed &= (bsize <= max_size); + partition_horz_allowed &= + ((bsize <= max_size && bsize > min_size) || force_horz_split); + partition_vert_allowed &= + ((bsize <= max_size && bsize > min_size) || force_vert_split); + do_split &= bsize > min_size; + } + + if (cpi->sf.use_square_partition_only && + (bsize > cpi->sf.use_square_only_thresh_high || + bsize < cpi->sf.use_square_only_thresh_low)) { + if (cpi->use_svc) { + if (!vp9_active_h_edge(cpi, mi_row, mi_step) || x->e_mbd.lossless) + partition_horz_allowed &= force_horz_split; + if (!vp9_active_v_edge(cpi, mi_row, mi_step) || x->e_mbd.lossless) + partition_vert_allowed &= force_vert_split; + } else { + partition_horz_allowed &= force_horz_split; + partition_vert_allowed &= force_vert_split; + } + } + + save_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + + pc_tree->partitioning = PARTITION_NONE; + + if (cpi->sf.rd_ml_partition.var_pruning && !frame_is_intra_only(cm)) { + const int do_rd_ml_partition_var_pruning = + partition_none_allowed && do_split && + mi_row + num_8x8_blocks_high_lookup[bsize] <= cm->mi_rows && + mi_col + num_8x8_blocks_wide_lookup[bsize] <= cm->mi_cols; + if (do_rd_ml_partition_var_pruning) { + ml_predict_var_rd_partitioning(cpi, x, pc_tree, bsize, mi_row, mi_col, + &partition_none_allowed, &do_split); + } else { + vp9_zero(pc_tree->mv); + } + if (bsize > BLOCK_8X8) { // Store MV result as reference for subblocks. + for (i = 0; i < 4; ++i) pc_tree->split[i]->mv = pc_tree->mv; + } + } + + // PARTITION_NONE + if (partition_none_allowed) { + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, bsize, ctx, + best_rdc.rate, best_rdc.dist); + ctx->rdcost = this_rdc.rdcost; + if (this_rdc.rate != INT_MAX) { + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + const int ref1 = ctx->mic.ref_frame[0]; + const int ref2 = ctx->mic.ref_frame[1]; + for (i = 0; i < 4; ++i) { + ref_frames_used[i] |= (1 << ref1); + if (ref2 > 0) ref_frames_used[i] |= (1 << ref2); + } + } + if (bsize >= BLOCK_8X8) { + this_rdc.rate += cpi->partition_cost[pl][PARTITION_NONE]; + vp9_rd_cost_update(partition_mul, x->rddiv, &this_rdc); + } + + if (this_rdc.rdcost < best_rdc.rdcost) { + MODE_INFO *mi = xd->mi[0]; + + best_rdc = this_rdc; + should_encode_sb = 1; + if (bsize >= BLOCK_8X8) pc_tree->partitioning = PARTITION_NONE; + + if (cpi->sf.rd_ml_partition.search_early_termination) { + // Currently, the machine-learning based partition search early + // termination is only used while bsize is 16x16, 32x32 or 64x64, + // VPXMIN(cm->width, cm->height) >= 480, and speed = 0. + if (!x->e_mbd.lossless && + !segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_SKIP) && + ctx->mic.mode >= INTRA_MODES && bsize >= BLOCK_16X16) { + if (ml_pruning_partition(cm, xd, ctx, mi_row, mi_col, bsize)) { + do_split = 0; + do_rect = 0; + } + } + } + + if ((do_split || do_rect) && !x->e_mbd.lossless && ctx->skippable) { + const int use_ml_based_breakout = + cpi->sf.rd_ml_partition.search_breakout && cm->base_qindex >= 100; + if (use_ml_based_breakout) { + if (ml_predict_breakout(cpi, bsize, x, &this_rdc)) { + do_split = 0; + do_rect = 0; + } + } else { + if (!cpi->sf.rd_ml_partition.search_early_termination) { + if ((best_rdc.dist < (dist_breakout_thr >> 2)) || + (best_rdc.dist < dist_breakout_thr && + best_rdc.rate < rate_breakout_thr)) { + do_split = 0; + do_rect = 0; + } + } + } + } + } + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } else { + vp9_zero(ctx->pred_mv); + ctx->mic.interp_filter = EIGHTTAP; + } + + // store estimated motion vector + store_pred_mv(x, ctx); + + // If the interp_filter is marked as SWITCHABLE_FILTERS, it was for an + // intra block and used for context purposes. + if (ctx->mic.interp_filter == SWITCHABLE_FILTERS) { + pred_interp_filter = EIGHTTAP; + } else { + pred_interp_filter = ctx->mic.interp_filter; + } + + // PARTITION_SPLIT + // TODO(jingning): use the motion vectors given by the above search as + // the starting point of motion search in the following partition type check. + pc_tree->split[0]->none.rdcost = 0; + pc_tree->split[1]->none.rdcost = 0; + pc_tree->split[2]->none.rdcost = 0; + pc_tree->split[3]->none.rdcost = 0; + if (do_split || must_split) { + subsize = get_subsize(bsize, PARTITION_SPLIT); + load_pred_mv(x, ctx); + if (bsize == BLOCK_8X8) { + i = 4; + if (cpi->sf.adaptive_pred_interp_filter && partition_none_allowed) + pc_tree->leaf_split[0]->pred_interp_filter = pred_interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + pc_tree->leaf_split[0], best_rdc.rate, best_rdc.dist); + if (sum_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + const int ref1 = pc_tree->leaf_split[0]->mic.ref_frame[0]; + const int ref2 = pc_tree->leaf_split[0]->mic.ref_frame[1]; + for (i = 0; i < 4; ++i) { + ref_frames_used[i] |= (1 << ref1); + if (ref2 > 0) ref_frames_used[i] |= (1 << ref2); + } + } + } + } else { + for (i = 0; (i < 4) && ((sum_rdc.rdcost < best_rdc.rdcost) || must_split); + ++i) { + const int x_idx = (i & 1) * mi_step; + const int y_idx = (i >> 1) * mi_step; + int found_best_rd = 0; + RD_COST best_rdc_split; + vp9_rd_cost_reset(&best_rdc_split); + + if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX) { + // A must split test here increases the number of sub + // partitions but hurts metrics results quite a bit, + // so this extra test is commented out pending + // further tests on whether it adds much in terms of + // visual quality. + // (must_split) ? best_rdc.rate + // : best_rdc.rate - sum_rdc.rate, + // (must_split) ? best_rdc.dist + // : best_rdc.dist - sum_rdc.dist, + best_rdc_split.rate = best_rdc.rate - sum_rdc.rate; + best_rdc_split.dist = best_rdc.dist - sum_rdc.dist; + } + + if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols) + continue; + + pc_tree->split[i]->index = i; + if (cpi->sf.prune_ref_frame_for_rect_partitions) + pc_tree->split[i]->none.rate = INT_MAX; + found_best_rd = rd_pick_partition( + cpi, td, tile_data, tp, mi_row + y_idx, mi_col + x_idx, subsize, + &this_rdc, best_rdc_split, pc_tree->split[i]); + + if (found_best_rd == 0) { + sum_rdc.rdcost = INT64_MAX; + break; + } else { + if (cpi->sf.prune_ref_frame_for_rect_partitions && + pc_tree->split[i]->none.rate != INT_MAX) { + const int ref1 = pc_tree->split[i]->none.mic.ref_frame[0]; + const int ref2 = pc_tree->split[i]->none.mic.ref_frame[1]; + ref_frames_used[i] |= (1 << ref1); + if (ref2 > 0) ref_frames_used[i] |= (1 << ref2); + } + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + } + } + } + + if (((sum_rdc.rdcost < best_rdc.rdcost) || must_split) && i == 4) { + sum_rdc.rate += cpi->partition_cost[pl][PARTITION_SPLIT]; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + + if ((sum_rdc.rdcost < best_rdc.rdcost) || + (must_split && (sum_rdc.dist < best_rdc.dist))) { + best_rdc = sum_rdc; + should_encode_sb = 1; + pc_tree->partitioning = PARTITION_SPLIT; + + // Rate and distortion based partition search termination clause. + if (!cpi->sf.rd_ml_partition.search_early_termination && + !x->e_mbd.lossless && + ((best_rdc.dist < (dist_breakout_thr >> 2)) || + (best_rdc.dist < dist_breakout_thr && + best_rdc.rate < rate_breakout_thr))) { + do_rect = 0; + } + } + } else { + // skip rectangular partition test when larger block size + // gives better rd cost + if (cpi->sf.less_rectangular_check && + (bsize > cpi->sf.use_square_only_thresh_high || + best_rdc.dist < dist_breakout_thr)) + do_rect &= !partition_none_allowed; + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + pc_tree->horizontal[0].skip_ref_frame_mask = 0; + pc_tree->horizontal[1].skip_ref_frame_mask = 0; + pc_tree->vertical[0].skip_ref_frame_mask = 0; + pc_tree->vertical[1].skip_ref_frame_mask = 0; + if (cpi->sf.prune_ref_frame_for_rect_partitions) { + uint8_t used_frames; + used_frames = ref_frames_used[0] | ref_frames_used[1]; + if (used_frames) { + pc_tree->horizontal[0].skip_ref_frame_mask = ~used_frames & 0xff; + } + used_frames = ref_frames_used[2] | ref_frames_used[3]; + if (used_frames) { + pc_tree->horizontal[1].skip_ref_frame_mask = ~used_frames & 0xff; + } + used_frames = ref_frames_used[0] | ref_frames_used[2]; + if (used_frames) { + pc_tree->vertical[0].skip_ref_frame_mask = ~used_frames & 0xff; + } + used_frames = ref_frames_used[1] | ref_frames_used[3]; + if (used_frames) { + pc_tree->vertical[1].skip_ref_frame_mask = ~used_frames & 0xff; + } + } + + { + const int do_ml_rect_partition_pruning = + !frame_is_intra_only(cm) && !force_horz_split && !force_vert_split && + (partition_horz_allowed || partition_vert_allowed) && bsize > BLOCK_8X8; + if (do_ml_rect_partition_pruning) { + ml_prune_rect_partition(cpi, x, bsize, pc_tree, &partition_horz_allowed, + &partition_vert_allowed, best_rdc.rdcost); + } + } + + // PARTITION_HORZ + if (partition_horz_allowed && + (do_rect || vp9_active_h_edge(cpi, mi_row, mi_step))) { + const int part_mode_rate = cpi->partition_cost[pl][PARTITION_HORZ]; + subsize = get_subsize(bsize, PARTITION_HORZ); + load_pred_mv(x, ctx); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->horizontal[0].pred_interp_filter = pred_interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->horizontal[0], best_rdc.rate - part_mode_rate, + best_rdc.dist); + if (sum_rdc.rdcost < INT64_MAX) { + sum_rdc.rate += part_mode_rate; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + } + + if (sum_rdc.rdcost < best_rdc.rdcost && mi_row + mi_step < cm->mi_rows && + bsize > BLOCK_8X8) { + PICK_MODE_CONTEXT *hctx = &pc_tree->horizontal[0]; + update_state(cpi, td, hctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, hctx); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->horizontal[1].pred_interp_filter = pred_interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row + mi_step, mi_col, &this_rdc, + subsize, &pc_tree->horizontal[1], + best_rdc.rate - sum_rdc.rate, + best_rdc.dist - sum_rdc.dist); + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + should_encode_sb = 1; + pc_tree->partitioning = PARTITION_HORZ; + + if (cpi->sf.less_rectangular_check && + bsize > cpi->sf.use_square_only_thresh_high) + do_rect = 0; + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + // PARTITION_VERT + if (partition_vert_allowed && + (do_rect || vp9_active_v_edge(cpi, mi_col, mi_step))) { + const int part_mode_rate = cpi->partition_cost[pl][PARTITION_VERT]; + subsize = get_subsize(bsize, PARTITION_VERT); + load_pred_mv(x, ctx); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->vertical[0].pred_interp_filter = pred_interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->vertical[0], best_rdc.rate - part_mode_rate, + best_rdc.dist); + if (sum_rdc.rdcost < INT64_MAX) { + sum_rdc.rate += part_mode_rate; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + } + + if (sum_rdc.rdcost < best_rdc.rdcost && mi_col + mi_step < cm->mi_cols && + bsize > BLOCK_8X8) { + update_state(cpi, td, &pc_tree->vertical[0], mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, + &pc_tree->vertical[0]); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->vertical[1].pred_interp_filter = pred_interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + mi_step, &this_rdc, + subsize, &pc_tree->vertical[1], + best_rdc.rate - sum_rdc.rate, + best_rdc.dist - sum_rdc.dist); + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + vp9_rd_cost_update(partition_mul, x->rddiv, &sum_rdc); + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + should_encode_sb = 1; + pc_tree->partitioning = PARTITION_VERT; + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + if (bsize == BLOCK_64X64 && best_rdc.rdcost == INT64_MAX) { + vp9_rd_cost_reset(&this_rdc); + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, BLOCK_64X64, + ctx, INT_MAX, INT64_MAX); + ctx->rdcost = this_rdc.rdcost; + vp9_rd_cost_update(partition_mul, x->rddiv, &this_rdc); + if (this_rdc.rdcost < best_rdc.rdcost) { + best_rdc = this_rdc; + should_encode_sb = 1; + pc_tree->partitioning = PARTITION_NONE; + } + } + + *rd_cost = best_rdc; + + if (should_encode_sb && pc_tree->index != 3) { + int output_enabled = (bsize == BLOCK_64X64); +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, encode_sb_time); +#endif + encode_sb(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, bsize, + pc_tree); +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, encode_sb_time); +#endif +#if CONFIG_RATE_CTRL + if (oxcf->use_simple_encode_api) { + // Store partition, motion vector of the superblock. + if (output_enabled) { + const int num_unit_rows = + get_num_unit_4x4(cpi->frame_info.frame_height); + const int num_unit_cols = get_num_unit_4x4(cpi->frame_info.frame_width); + store_superblock_info(pc_tree, cm->mi_grid_visible, cm->mi_stride, + num_4x4_blocks_wide_lookup[BLOCK_64X64], + num_unit_rows, num_unit_cols, mi_row << 1, + mi_col << 1, cpi->partition_info, + cpi->motion_vector_info); + } + } +#endif // CONFIG_RATE_CTRL + } + + if (bsize == BLOCK_64X64) { + assert(tp_orig < *tp); + assert(best_rdc.rate < INT_MAX); + assert(best_rdc.dist < INT64_MAX); + } else { + assert(tp_orig == *tp); + } + + return should_encode_sb; +} + +static void encode_rd_sb_row(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, int mi_row, + TOKENEXTRA **tp) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + SPEED_FEATURES *const sf = &cpi->sf; + const int mi_col_start = tile_info->mi_col_start; + const int mi_col_end = tile_info->mi_col_end; + int mi_col; + const int sb_row = mi_row >> MI_BLOCK_SIZE_LOG2; + const int num_sb_cols = + get_num_cols(tile_data->tile_info, MI_BLOCK_SIZE_LOG2); + int sb_col_in_tile; + + // Initialize the left context for the new SB row + memset(&xd->left_context, 0, sizeof(xd->left_context)); + memset(xd->left_seg_context, 0, sizeof(xd->left_seg_context)); + + // Code each SB in the row + for (mi_col = mi_col_start, sb_col_in_tile = 0; mi_col < mi_col_end; + mi_col += MI_BLOCK_SIZE, sb_col_in_tile++) { + const struct segmentation *const seg = &cm->seg; + int dummy_rate; + int64_t dummy_dist; + RD_COST dummy_rdc; + int i; + int seg_skip = 0; + int orig_rdmult = cpi->rd.RDMULT; + + const int idx_str = cm->mi_stride * mi_row + mi_col; + MODE_INFO **mi = cm->mi_grid_visible + idx_str; + + vp9_rd_cost_reset(&dummy_rdc); + (*(cpi->row_mt_sync_read_ptr))(&tile_data->row_mt_sync, sb_row, + sb_col_in_tile); + + if (sf->adaptive_pred_interp_filter) { + for (i = 0; i < 64; ++i) td->leaf_tree[i].pred_interp_filter = SWITCHABLE; + + for (i = 0; i < 64; ++i) { + td->pc_tree[i].vertical[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].vertical[1].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[0].pred_interp_filter = SWITCHABLE; + td->pc_tree[i].horizontal[1].pred_interp_filter = SWITCHABLE; + } + } + + for (i = 0; i < MAX_REF_FRAMES; ++i) { + x->pred_mv[i].row = INT16_MAX; + x->pred_mv[i].col = INT16_MAX; + } + td->pc_root->index = 0; + + if (seg->enabled) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + int segment_id = get_segment_id(cm, map, BLOCK_64X64, mi_row, mi_col); + seg_skip = segfeature_active(seg, segment_id, SEG_LVL_SKIP); + } + + x->source_variance = UINT_MAX; + + x->cb_rdmult = orig_rdmult; + + if (sf->partition_search_type == FIXED_PARTITION || seg_skip) { + const BLOCK_SIZE bsize = + seg_skip ? BLOCK_64X64 : sf->always_this_block_size; + set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64); + set_fixed_partitioning(cpi, tile_info, mi, mi_row, mi_col, bsize); + rd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, BLOCK_64X64, + &dummy_rate, &dummy_dist, 1, td->pc_root); + } else if (sf->partition_search_type == VAR_BASED_PARTITION && + cm->frame_type != KEY_FRAME) { + choose_partitioning(cpi, tile_info, x, mi_row, mi_col); + rd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, BLOCK_64X64, + &dummy_rate, &dummy_dist, 1, td->pc_root); + } else { + if (cpi->twopass.gf_group.index > 0 && cpi->sf.enable_tpl_model) { + int dr = + get_rdmult_delta(cpi, BLOCK_64X64, mi_row, mi_col, orig_rdmult); + x->cb_rdmult = dr; + } + + if (cpi->oxcf.aq_mode == PERCEPTUAL_AQ && cm->show_frame) { + x->segment_id = wiener_var_segment(cpi, BLOCK_64X64, mi_row, mi_col); + x->cb_rdmult = vp9_compute_rd_mult( + cpi, vp9_get_qindex(&cm->seg, x->segment_id, cm->base_qindex)); + } + + // If required set upper and lower partition size limits + if (sf->auto_min_max_partition_size) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64); + rd_auto_partition_range(cpi, tile_info, xd, mi_row, mi_col, + &x->min_partition_size, &x->max_partition_size); + } + td->pc_root->none.rdcost = 0; + +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, rd_pick_partition_time); +#endif + rd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, BLOCK_64X64, + &dummy_rdc, dummy_rdc, td->pc_root); +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, rd_pick_partition_time); +#endif + } + (*(cpi->row_mt_sync_write_ptr))(&tile_data->row_mt_sync, sb_row, + sb_col_in_tile, num_sb_cols); + } +} +#endif // !CONFIG_REALTIME_ONLY + +static void init_encode_frame_mb_context(VP9_COMP *cpi) { + MACROBLOCK *const x = &cpi->td.mb; + VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + const int aligned_mi_cols = mi_cols_aligned_to_sb(cm->mi_cols); + + // Copy data over into macro block data structures. + vp9_setup_src_planes(x, cpi->Source, 0, 0); + + vp9_setup_block_planes(&x->e_mbd, cm->subsampling_x, cm->subsampling_y); + + // Note: this memset assumes above_context[0], [1] and [2] + // are allocated as part of the same buffer. + memset(xd->above_context[0], 0, + sizeof(*xd->above_context[0]) * 2 * aligned_mi_cols * MAX_MB_PLANE); + memset(xd->above_seg_context, 0, + sizeof(*xd->above_seg_context) * aligned_mi_cols); +} + +static int check_dual_ref_flags(VP9_COMP *cpi) { + const int ref_flags = cpi->ref_frame_flags; + + if (segfeature_active(&cpi->common.seg, 1, SEG_LVL_REF_FRAME)) { + return 0; + } else { + return (!!(ref_flags & VP9_GOLD_FLAG) + !!(ref_flags & VP9_LAST_FLAG) + + !!(ref_flags & VP9_ALT_FLAG)) >= 2; + } +} + +static void reset_skip_tx_size(VP9_COMMON *cm, TX_SIZE max_tx_size) { + int mi_row, mi_col; + const int mis = cm->mi_stride; + MODE_INFO **mi_ptr = cm->mi_grid_visible; + + for (mi_row = 0; mi_row < cm->mi_rows; ++mi_row, mi_ptr += mis) { + for (mi_col = 0; mi_col < cm->mi_cols; ++mi_col) { + if (mi_ptr[mi_col]->tx_size > max_tx_size) + mi_ptr[mi_col]->tx_size = max_tx_size; + } + } +} + +static MV_REFERENCE_FRAME get_frame_type(const VP9_COMP *cpi) { + if (frame_is_intra_only(&cpi->common)) + return INTRA_FRAME; + else if (cpi->rc.is_src_frame_alt_ref && cpi->refresh_golden_frame) + return ALTREF_FRAME; + else if (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame) + return GOLDEN_FRAME; + else + return LAST_FRAME; +} + +static TX_MODE select_tx_mode(const VP9_COMP *cpi, MACROBLOCKD *const xd) { + if (xd->lossless) return ONLY_4X4; + if (cpi->common.frame_type == KEY_FRAME && cpi->sf.use_nonrd_pick_mode) + return ALLOW_16X16; + if (cpi->sf.tx_size_search_method == USE_LARGESTALL) + return ALLOW_32X32; + else if (cpi->sf.tx_size_search_method == USE_FULL_RD || + cpi->sf.tx_size_search_method == USE_TX_8X8) + return TX_MODE_SELECT; + else + return cpi->common.tx_mode; +} + +static void hybrid_intra_mode_search(VP9_COMP *cpi, MACROBLOCK *const x, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx) { + if (!cpi->sf.nonrd_keyframe && bsize < BLOCK_16X16) + vp9_rd_pick_intra_mode_sb(cpi, x, rd_cost, bsize, ctx, INT64_MAX); + else + vp9_pick_intra_mode(cpi, x, rd_cost, bsize, ctx); +} + +static void hybrid_search_svc_baseiskey(VP9_COMP *cpi, MACROBLOCK *const x, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, + TileDataEnc *tile_data, int mi_row, + int mi_col) { + if (!cpi->sf.nonrd_keyframe && bsize <= BLOCK_8X8) { + vp9_rd_pick_intra_mode_sb(cpi, x, rd_cost, bsize, ctx, INT64_MAX); + } else { + if (cpi->svc.disable_inter_layer_pred == INTER_LAYER_PRED_OFF) + vp9_pick_intra_mode(cpi, x, rd_cost, bsize, ctx); + else if (bsize >= BLOCK_8X8) + vp9_pick_inter_mode(cpi, x, tile_data, mi_row, mi_col, rd_cost, bsize, + ctx); + else + vp9_pick_inter_mode_sub8x8(cpi, x, mi_row, mi_col, rd_cost, bsize, ctx); + } +} + +static void hybrid_search_scene_change(VP9_COMP *cpi, MACROBLOCK *const x, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx, + TileDataEnc *tile_data, int mi_row, + int mi_col) { + if (!cpi->sf.nonrd_keyframe && bsize <= BLOCK_8X8) { + vp9_rd_pick_intra_mode_sb(cpi, x, rd_cost, bsize, ctx, INT64_MAX); + } else { + vp9_pick_inter_mode(cpi, x, tile_data, mi_row, mi_col, rd_cost, bsize, ctx); + } +} + +static void nonrd_pick_sb_modes(VP9_COMP *cpi, TileDataEnc *tile_data, + MACROBLOCK *const x, int mi_row, int mi_col, + RD_COST *rd_cost, BLOCK_SIZE bsize, + PICK_MODE_CONTEXT *ctx) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *mi; + ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE]; + BLOCK_SIZE bs = VPXMAX(bsize, BLOCK_8X8); // processing unit block size + const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bs]; + const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bs]; + int plane; + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + set_segment_index(cpi, x, mi_row, mi_col, bsize, 0); + + x->skip_recode = 0; + + mi = xd->mi[0]; + mi->sb_type = bsize; + + for (plane = 0; plane < MAX_MB_PLANE; ++plane) { + struct macroblockd_plane *pd = &xd->plane[plane]; + memcpy(a + num_4x4_blocks_wide * plane, pd->above_context, + (sizeof(a[0]) * num_4x4_blocks_wide) >> pd->subsampling_x); + memcpy(l + num_4x4_blocks_high * plane, pd->left_context, + (sizeof(l[0]) * num_4x4_blocks_high) >> pd->subsampling_y); + } + + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled) + if (cyclic_refresh_segment_id_boosted(mi->segment_id)) + x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh); + + if (frame_is_intra_only(cm)) + hybrid_intra_mode_search(cpi, x, rd_cost, bsize, ctx); + else if (cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame) + hybrid_search_svc_baseiskey(cpi, x, rd_cost, bsize, ctx, tile_data, mi_row, + mi_col); + else if (segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_SKIP)) + set_mode_info_seg_skip(x, cm->tx_mode, cm->interp_filter, rd_cost, bsize); + else if (bsize >= BLOCK_8X8) { + if (cpi->rc.hybrid_intra_scene_change) + hybrid_search_scene_change(cpi, x, rd_cost, bsize, ctx, tile_data, mi_row, + mi_col); + else + vp9_pick_inter_mode(cpi, x, tile_data, mi_row, mi_col, rd_cost, bsize, + ctx); + } else { + vp9_pick_inter_mode_sub8x8(cpi, x, mi_row, mi_col, rd_cost, bsize, ctx); + } + + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize); + + for (plane = 0; plane < MAX_MB_PLANE; ++plane) { + struct macroblockd_plane *pd = &xd->plane[plane]; + memcpy(pd->above_context, a + num_4x4_blocks_wide * plane, + (sizeof(a[0]) * num_4x4_blocks_wide) >> pd->subsampling_x); + memcpy(pd->left_context, l + num_4x4_blocks_high * plane, + (sizeof(l[0]) * num_4x4_blocks_high) >> pd->subsampling_y); + } + + if (rd_cost->rate == INT_MAX) vp9_rd_cost_reset(rd_cost); + + ctx->rate = rd_cost->rate; + ctx->dist = rd_cost->dist; +} + +static void fill_mode_info_sb(VP9_COMMON *cm, MACROBLOCK *x, int mi_row, + int mi_col, BLOCK_SIZE bsize, PC_TREE *pc_tree) { + MACROBLOCKD *xd = &x->e_mbd; + int bsl = b_width_log2_lookup[bsize], hbs = (1 << bsl) / 4; + PARTITION_TYPE partition = pc_tree->partitioning; + BLOCK_SIZE subsize = get_subsize(bsize, partition); + + assert(bsize >= BLOCK_8X8); + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + switch (partition) { + case PARTITION_NONE: + set_mode_info_offsets(cm, x, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->none.mic; + *(x->mbmi_ext) = pc_tree->none.mbmi_ext; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize); + break; + case PARTITION_VERT: + set_mode_info_offsets(cm, x, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->vertical[0].mic; + *(x->mbmi_ext) = pc_tree->vertical[0].mbmi_ext; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, subsize); + + if (mi_col + hbs < cm->mi_cols) { + set_mode_info_offsets(cm, x, xd, mi_row, mi_col + hbs); + *(xd->mi[0]) = pc_tree->vertical[1].mic; + *(x->mbmi_ext) = pc_tree->vertical[1].mbmi_ext; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col + hbs, subsize); + } + break; + case PARTITION_HORZ: + set_mode_info_offsets(cm, x, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->horizontal[0].mic; + *(x->mbmi_ext) = pc_tree->horizontal[0].mbmi_ext; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, subsize); + if (mi_row + hbs < cm->mi_rows) { + set_mode_info_offsets(cm, x, xd, mi_row + hbs, mi_col); + *(xd->mi[0]) = pc_tree->horizontal[1].mic; + *(x->mbmi_ext) = pc_tree->horizontal[1].mbmi_ext; + duplicate_mode_info_in_sb(cm, xd, mi_row + hbs, mi_col, subsize); + } + break; + case PARTITION_SPLIT: { + fill_mode_info_sb(cm, x, mi_row, mi_col, subsize, pc_tree->split[0]); + fill_mode_info_sb(cm, x, mi_row, mi_col + hbs, subsize, + pc_tree->split[1]); + fill_mode_info_sb(cm, x, mi_row + hbs, mi_col, subsize, + pc_tree->split[2]); + fill_mode_info_sb(cm, x, mi_row + hbs, mi_col + hbs, subsize, + pc_tree->split[3]); + break; + } + default: break; + } +} + +// Reset the prediction pixel ready flag recursively. +static void pred_pixel_ready_reset(PC_TREE *pc_tree, BLOCK_SIZE bsize) { + pc_tree->none.pred_pixel_ready = 0; + pc_tree->horizontal[0].pred_pixel_ready = 0; + pc_tree->horizontal[1].pred_pixel_ready = 0; + pc_tree->vertical[0].pred_pixel_ready = 0; + pc_tree->vertical[1].pred_pixel_ready = 0; + + if (bsize > BLOCK_8X8) { + BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_SPLIT); + int i; + for (i = 0; i < 4; ++i) pred_pixel_ready_reset(pc_tree->split[i], subsize); + } +} + +#define FEATURES 6 +#define LABELS 2 +static int ml_predict_var_partitioning(VP9_COMP *cpi, MACROBLOCK *x, + BLOCK_SIZE bsize, int mi_row, + int mi_col) { + VP9_COMMON *const cm = &cpi->common; + const NN_CONFIG *nn_config = NULL; + + switch (bsize) { + case BLOCK_64X64: nn_config = &vp9_var_part_nnconfig_64; break; + case BLOCK_32X32: nn_config = &vp9_var_part_nnconfig_32; break; + case BLOCK_16X16: nn_config = &vp9_var_part_nnconfig_16; break; + case BLOCK_8X8: break; + default: assert(0 && "Unexpected block size."); return -1; + } + + if (!nn_config) return -1; + + vpx_clear_system_state(); + + { + const float thresh = cpi->oxcf.speed <= 5 ? 1.25f : 0.0f; + float features[FEATURES] = { 0.0f }; + const int dc_q = vp9_dc_quant(cm->base_qindex, 0, cm->bit_depth); + int feature_idx = 0; + float score[LABELS]; + + features[feature_idx++] = logf((float)(dc_q * dc_q) / 256.0f + 1.0f); + vp9_setup_src_planes(x, cpi->Source, mi_row, mi_col); + { + const int bs = 4 * num_4x4_blocks_wide_lookup[bsize]; + const BLOCK_SIZE subsize = get_subsize(bsize, PARTITION_SPLIT); + const int sb_offset_row = 8 * (mi_row & 7); + const int sb_offset_col = 8 * (mi_col & 7); + const uint8_t *pred = x->est_pred + sb_offset_row * 64 + sb_offset_col; + const uint8_t *src = x->plane[0].src.buf; + const int src_stride = x->plane[0].src.stride; + const int pred_stride = 64; + unsigned int sse; + int i; + // Variance of whole block. + const unsigned int var = + cpi->fn_ptr[bsize].vf(src, src_stride, pred, pred_stride, &sse); + const float factor = (var == 0) ? 1.0f : (1.0f / (float)var); + + features[feature_idx++] = logf((float)var + 1.0f); + for (i = 0; i < 4; ++i) { + const int x_idx = (i & 1) * bs / 2; + const int y_idx = (i >> 1) * bs / 2; + const int src_offset = y_idx * src_stride + x_idx; + const int pred_offset = y_idx * pred_stride + x_idx; + // Variance of quarter block. + const unsigned int sub_var = + cpi->fn_ptr[subsize].vf(src + src_offset, src_stride, + pred + pred_offset, pred_stride, &sse); + const float var_ratio = (var == 0) ? 1.0f : factor * (float)sub_var; + features[feature_idx++] = var_ratio; + } + } + + assert(feature_idx == FEATURES); + nn_predict(features, nn_config, score); + if (score[0] > thresh) return PARTITION_SPLIT; + if (score[0] < -thresh) return PARTITION_NONE; + return -1; + } +} +#undef FEATURES +#undef LABELS + +static void nonrd_pick_partition(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, TOKENEXTRA **tp, + int mi_row, int mi_col, BLOCK_SIZE bsize, + RD_COST *rd_cost, int do_recon, + int64_t best_rd, PC_TREE *pc_tree) { + const SPEED_FEATURES *const sf = &cpi->sf; + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int ms = num_8x8_blocks_wide_lookup[bsize] / 2; + TOKENEXTRA *tp_orig = *tp; + PICK_MODE_CONTEXT *ctx = &pc_tree->none; + int i; + BLOCK_SIZE subsize = bsize; + RD_COST this_rdc, sum_rdc, best_rdc; + int do_split = bsize >= BLOCK_8X8; + int do_rect = 1; + // Override skipping rectangular partition operations for edge blocks + const int force_horz_split = (mi_row + ms >= cm->mi_rows); + const int force_vert_split = (mi_col + ms >= cm->mi_cols); + const int xss = x->e_mbd.plane[1].subsampling_x; + const int yss = x->e_mbd.plane[1].subsampling_y; + + int partition_none_allowed = !force_horz_split && !force_vert_split; + int partition_horz_allowed = + !force_vert_split && yss <= xss && bsize >= BLOCK_8X8; + int partition_vert_allowed = + !force_horz_split && xss <= yss && bsize >= BLOCK_8X8; + const int use_ml_based_partitioning = + sf->partition_search_type == ML_BASED_PARTITION; + + (void)*tp_orig; + + // Avoid checking for rectangular partitions for speed >= 5. + if (cpi->oxcf.speed >= 5) do_rect = 0; + + assert(num_8x8_blocks_wide_lookup[bsize] == + num_8x8_blocks_high_lookup[bsize]); + + vp9_rd_cost_init(&sum_rdc); + vp9_rd_cost_reset(&best_rdc); + best_rdc.rdcost = best_rd; + + // Determine partition types in search according to the speed features. + // The threshold set here has to be of square block size. + if (sf->auto_min_max_partition_size) { + partition_none_allowed &= + (bsize <= x->max_partition_size && bsize >= x->min_partition_size); + partition_horz_allowed &= + ((bsize <= x->max_partition_size && bsize > x->min_partition_size) || + force_horz_split); + partition_vert_allowed &= + ((bsize <= x->max_partition_size && bsize > x->min_partition_size) || + force_vert_split); + do_split &= bsize > x->min_partition_size; + } + if (sf->use_square_partition_only) { + partition_horz_allowed &= force_horz_split; + partition_vert_allowed &= force_vert_split; + } + + if (use_ml_based_partitioning) { + if (partition_none_allowed || do_split) do_rect = 0; + if (partition_none_allowed && do_split) { + const int ml_predicted_partition = + ml_predict_var_partitioning(cpi, x, bsize, mi_row, mi_col); + if (ml_predicted_partition == PARTITION_NONE) do_split = 0; + if (ml_predicted_partition == PARTITION_SPLIT) partition_none_allowed = 0; + } + } + + if (!partition_none_allowed && !do_split) do_rect = 1; + + ctx->pred_pixel_ready = + !(partition_vert_allowed || partition_horz_allowed || do_split); + + // PARTITION_NONE + if (partition_none_allowed) { + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &this_rdc, bsize, + ctx); + ctx->mic = *xd->mi[0]; + ctx->mbmi_ext = *x->mbmi_ext; + ctx->skip_txfm[0] = x->skip_txfm[0]; + ctx->skip = x->skip; + + if (this_rdc.rate != INT_MAX) { + const int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + this_rdc.rate += cpi->partition_cost[pl][PARTITION_NONE]; + this_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist); + if (this_rdc.rdcost < best_rdc.rdcost) { + best_rdc = this_rdc; + if (bsize >= BLOCK_8X8) pc_tree->partitioning = PARTITION_NONE; + + if (!use_ml_based_partitioning) { + int64_t dist_breakout_thr = sf->partition_search_breakout_thr.dist; + int64_t rate_breakout_thr = sf->partition_search_breakout_thr.rate; + dist_breakout_thr >>= + 8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]); + rate_breakout_thr *= num_pels_log2_lookup[bsize]; + if (!x->e_mbd.lossless && this_rdc.rate < rate_breakout_thr && + this_rdc.dist < dist_breakout_thr) { + do_split = 0; + do_rect = 0; + } + } + } + } + } + + // store estimated motion vector + store_pred_mv(x, ctx); + + // PARTITION_SPLIT + if (do_split) { + int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + sum_rdc.rate += cpi->partition_cost[pl][PARTITION_SPLIT]; + sum_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, sum_rdc.rate, sum_rdc.dist); + subsize = get_subsize(bsize, PARTITION_SPLIT); + for (i = 0; i < 4 && sum_rdc.rdcost < best_rdc.rdcost; ++i) { + const int x_idx = (i & 1) * ms; + const int y_idx = (i >> 1) * ms; + + if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols) + continue; + load_pred_mv(x, ctx); + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row + y_idx, + mi_col + x_idx, subsize, &this_rdc, 0, + best_rdc.rdcost - sum_rdc.rdcost, pc_tree->split[i]); + + if (this_rdc.rate == INT_MAX) { + vp9_rd_cost_reset(&sum_rdc); + } else { + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost += this_rdc.rdcost; + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_SPLIT; + } else { + // skip rectangular partition test when larger block size + // gives better rd cost + if (sf->less_rectangular_check) do_rect &= !partition_none_allowed; + } + } + + // PARTITION_HORZ + if (partition_horz_allowed && do_rect) { + subsize = get_subsize(bsize, PARTITION_HORZ); + load_pred_mv(x, ctx); + pc_tree->horizontal[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->horizontal[0]); + + pc_tree->horizontal[0].mic = *xd->mi[0]; + pc_tree->horizontal[0].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[0].skip = x->skip; + + if (sum_rdc.rdcost < best_rdc.rdcost && mi_row + ms < cm->mi_rows) { + load_pred_mv(x, ctx); + pc_tree->horizontal[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row + ms, mi_col, &this_rdc, + subsize, &pc_tree->horizontal[1]); + + pc_tree->horizontal[1].mic = *xd->mi[0]; + pc_tree->horizontal[1].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[1].skip = x->skip; + + if (this_rdc.rate == INT_MAX) { + vp9_rd_cost_reset(&sum_rdc); + } else { + int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + this_rdc.rate += cpi->partition_cost[pl][PARTITION_HORZ]; + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, sum_rdc.rate, sum_rdc.dist); + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_HORZ; + } else { + pred_pixel_ready_reset(pc_tree, bsize); + } + } + + // PARTITION_VERT + if (partition_vert_allowed && do_rect) { + subsize = get_subsize(bsize, PARTITION_VERT); + load_pred_mv(x, ctx); + pc_tree->vertical[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->vertical[0]); + pc_tree->vertical[0].mic = *xd->mi[0]; + pc_tree->vertical[0].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[0].skip = x->skip; + + if (sum_rdc.rdcost < best_rdc.rdcost && mi_col + ms < cm->mi_cols) { + load_pred_mv(x, ctx); + pc_tree->vertical[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + ms, &this_rdc, + subsize, &pc_tree->vertical[1]); + pc_tree->vertical[1].mic = *xd->mi[0]; + pc_tree->vertical[1].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[1].skip = x->skip; + + if (this_rdc.rate == INT_MAX) { + vp9_rd_cost_reset(&sum_rdc); + } else { + int pl = partition_plane_context(xd, mi_row, mi_col, bsize); + sum_rdc.rate += cpi->partition_cost[pl][PARTITION_VERT]; + sum_rdc.rate += this_rdc.rate; + sum_rdc.dist += this_rdc.dist; + sum_rdc.rdcost = + RDCOST(x->rdmult, x->rddiv, sum_rdc.rate, sum_rdc.dist); + } + } + + if (sum_rdc.rdcost < best_rdc.rdcost) { + best_rdc = sum_rdc; + pc_tree->partitioning = PARTITION_VERT; + } else { + pred_pixel_ready_reset(pc_tree, bsize); + } + } + + *rd_cost = best_rdc; + + if (best_rdc.rate == INT_MAX) { + vp9_rd_cost_reset(rd_cost); + return; + } + + // update mode info array + fill_mode_info_sb(cm, x, mi_row, mi_col, bsize, pc_tree); + + if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX && do_recon) { + int output_enabled = (bsize == BLOCK_64X64); + encode_sb_rt(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, bsize, + pc_tree); + } + + if (bsize == BLOCK_64X64 && do_recon) { + assert(tp_orig < *tp); + assert(best_rdc.rate < INT_MAX); + assert(best_rdc.dist < INT64_MAX); + } else { + assert(tp_orig == *tp); + } +} + +static void nonrd_select_partition(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, MODE_INFO **mi, + TOKENEXTRA **tp, int mi_row, int mi_col, + BLOCK_SIZE bsize, int output_enabled, + RD_COST *rd_cost, PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int bsl = b_width_log2_lookup[bsize], hbs = (1 << bsl) / 4; + const int mis = cm->mi_stride; + PARTITION_TYPE partition; + BLOCK_SIZE subsize; + RD_COST this_rdc; + BLOCK_SIZE subsize_ref = + (cpi->sf.adapt_partition_source_sad) ? BLOCK_8X8 : BLOCK_16X16; + + vp9_rd_cost_reset(&this_rdc); + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + subsize = (bsize >= BLOCK_8X8) ? mi[0]->sb_type : BLOCK_4X4; + partition = partition_lookup[bsl][subsize]; + + if (bsize == BLOCK_32X32 && subsize == BLOCK_32X32) { + x->max_partition_size = BLOCK_32X32; + x->min_partition_size = BLOCK_16X16; + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, bsize, rd_cost, + 0, INT64_MAX, pc_tree); + } else if (bsize == BLOCK_32X32 && partition != PARTITION_NONE && + subsize >= subsize_ref) { + x->max_partition_size = BLOCK_32X32; + x->min_partition_size = BLOCK_8X8; + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, bsize, rd_cost, + 0, INT64_MAX, pc_tree); + } else if (bsize == BLOCK_16X16 && partition != PARTITION_NONE) { + x->max_partition_size = BLOCK_16X16; + x->min_partition_size = BLOCK_8X8; + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, bsize, rd_cost, + 0, INT64_MAX, pc_tree); + } else { + switch (partition) { + case PARTITION_NONE: + pc_tree->none.pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, rd_cost, subsize, + &pc_tree->none); + pc_tree->none.mic = *xd->mi[0]; + pc_tree->none.mbmi_ext = *x->mbmi_ext; + pc_tree->none.skip_txfm[0] = x->skip_txfm[0]; + pc_tree->none.skip = x->skip; + break; + case PARTITION_VERT: + pc_tree->vertical[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, rd_cost, subsize, + &pc_tree->vertical[0]); + pc_tree->vertical[0].mic = *xd->mi[0]; + pc_tree->vertical[0].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[0].skip = x->skip; + if (mi_col + hbs < cm->mi_cols) { + pc_tree->vertical[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + hbs, + &this_rdc, subsize, &pc_tree->vertical[1]); + pc_tree->vertical[1].mic = *xd->mi[0]; + pc_tree->vertical[1].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[1].skip = x->skip; + if (this_rdc.rate != INT_MAX && this_rdc.dist != INT64_MAX && + rd_cost->rate != INT_MAX && rd_cost->dist != INT64_MAX) { + rd_cost->rate += this_rdc.rate; + rd_cost->dist += this_rdc.dist; + } + } + break; + case PARTITION_HORZ: + pc_tree->horizontal[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, rd_cost, subsize, + &pc_tree->horizontal[0]); + pc_tree->horizontal[0].mic = *xd->mi[0]; + pc_tree->horizontal[0].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[0].skip = x->skip; + if (mi_row + hbs < cm->mi_rows) { + pc_tree->horizontal[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row + hbs, mi_col, + &this_rdc, subsize, &pc_tree->horizontal[1]); + pc_tree->horizontal[1].mic = *xd->mi[0]; + pc_tree->horizontal[1].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[1].skip = x->skip; + if (this_rdc.rate != INT_MAX && this_rdc.dist != INT64_MAX && + rd_cost->rate != INT_MAX && rd_cost->dist != INT64_MAX) { + rd_cost->rate += this_rdc.rate; + rd_cost->dist += this_rdc.dist; + } + } + break; + default: + assert(partition == PARTITION_SPLIT); + subsize = get_subsize(bsize, PARTITION_SPLIT); + nonrd_select_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + subsize, output_enabled, rd_cost, + pc_tree->split[0]); + nonrd_select_partition(cpi, td, tile_data, mi + hbs, tp, mi_row, + mi_col + hbs, subsize, output_enabled, &this_rdc, + pc_tree->split[1]); + if (this_rdc.rate != INT_MAX && this_rdc.dist != INT64_MAX && + rd_cost->rate != INT_MAX && rd_cost->dist != INT64_MAX) { + rd_cost->rate += this_rdc.rate; + rd_cost->dist += this_rdc.dist; + } + nonrd_select_partition(cpi, td, tile_data, mi + hbs * mis, tp, + mi_row + hbs, mi_col, subsize, output_enabled, + &this_rdc, pc_tree->split[2]); + if (this_rdc.rate != INT_MAX && this_rdc.dist != INT64_MAX && + rd_cost->rate != INT_MAX && rd_cost->dist != INT64_MAX) { + rd_cost->rate += this_rdc.rate; + rd_cost->dist += this_rdc.dist; + } + nonrd_select_partition(cpi, td, tile_data, mi + hbs * mis + hbs, tp, + mi_row + hbs, mi_col + hbs, subsize, + output_enabled, &this_rdc, pc_tree->split[3]); + if (this_rdc.rate != INT_MAX && this_rdc.dist != INT64_MAX && + rd_cost->rate != INT_MAX && rd_cost->dist != INT64_MAX) { + rd_cost->rate += this_rdc.rate; + rd_cost->dist += this_rdc.dist; + } + break; + } + } + + if (bsize == BLOCK_64X64 && output_enabled) + encode_sb_rt(cpi, td, tile_info, tp, mi_row, mi_col, 1, bsize, pc_tree); +} + +static void nonrd_use_partition(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, MODE_INFO **mi, + TOKENEXTRA **tp, int mi_row, int mi_col, + BLOCK_SIZE bsize, int output_enabled, + RD_COST *dummy_cost, PC_TREE *pc_tree) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int bsl = b_width_log2_lookup[bsize], hbs = (1 << bsl) / 4; + const int mis = cm->mi_stride; + PARTITION_TYPE partition; + BLOCK_SIZE subsize; + + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) return; + + subsize = (bsize >= BLOCK_8X8) ? mi[0]->sb_type : BLOCK_4X4; + partition = partition_lookup[bsl][subsize]; + + if (output_enabled && bsize != BLOCK_4X4) { + int ctx = partition_plane_context(xd, mi_row, mi_col, bsize); + td->counts->partition[ctx][partition]++; + } + + switch (partition) { + case PARTITION_NONE: + pc_tree->none.pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, dummy_cost, + subsize, &pc_tree->none); + pc_tree->none.mic = *xd->mi[0]; + pc_tree->none.mbmi_ext = *x->mbmi_ext; + pc_tree->none.skip_txfm[0] = x->skip_txfm[0]; + pc_tree->none.skip = x->skip; + encode_b_rt(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, + subsize, &pc_tree->none); + break; + case PARTITION_VERT: + pc_tree->vertical[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, dummy_cost, + subsize, &pc_tree->vertical[0]); + pc_tree->vertical[0].mic = *xd->mi[0]; + pc_tree->vertical[0].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[0].skip = x->skip; + encode_b_rt(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, + subsize, &pc_tree->vertical[0]); + if (mi_col + hbs < cm->mi_cols && bsize > BLOCK_8X8) { + pc_tree->vertical[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col + hbs, dummy_cost, + subsize, &pc_tree->vertical[1]); + pc_tree->vertical[1].mic = *xd->mi[0]; + pc_tree->vertical[1].mbmi_ext = *x->mbmi_ext; + pc_tree->vertical[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->vertical[1].skip = x->skip; + encode_b_rt(cpi, td, tile_info, tp, mi_row, mi_col + hbs, + output_enabled, subsize, &pc_tree->vertical[1]); + } + break; + case PARTITION_HORZ: + pc_tree->horizontal[0].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, dummy_cost, + subsize, &pc_tree->horizontal[0]); + pc_tree->horizontal[0].mic = *xd->mi[0]; + pc_tree->horizontal[0].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[0].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[0].skip = x->skip; + encode_b_rt(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, + subsize, &pc_tree->horizontal[0]); + + if (mi_row + hbs < cm->mi_rows && bsize > BLOCK_8X8) { + pc_tree->horizontal[1].pred_pixel_ready = 1; + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row + hbs, mi_col, dummy_cost, + subsize, &pc_tree->horizontal[1]); + pc_tree->horizontal[1].mic = *xd->mi[0]; + pc_tree->horizontal[1].mbmi_ext = *x->mbmi_ext; + pc_tree->horizontal[1].skip_txfm[0] = x->skip_txfm[0]; + pc_tree->horizontal[1].skip = x->skip; + encode_b_rt(cpi, td, tile_info, tp, mi_row + hbs, mi_col, + output_enabled, subsize, &pc_tree->horizontal[1]); + } + break; + default: + assert(partition == PARTITION_SPLIT); + subsize = get_subsize(bsize, PARTITION_SPLIT); + if (bsize == BLOCK_8X8) { + nonrd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, dummy_cost, + subsize, pc_tree->leaf_split[0]); + encode_b_rt(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, + subsize, pc_tree->leaf_split[0]); + } else { + nonrd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, subsize, + output_enabled, dummy_cost, pc_tree->split[0]); + nonrd_use_partition(cpi, td, tile_data, mi + hbs, tp, mi_row, + mi_col + hbs, subsize, output_enabled, dummy_cost, + pc_tree->split[1]); + nonrd_use_partition(cpi, td, tile_data, mi + hbs * mis, tp, + mi_row + hbs, mi_col, subsize, output_enabled, + dummy_cost, pc_tree->split[2]); + nonrd_use_partition(cpi, td, tile_data, mi + hbs * mis + hbs, tp, + mi_row + hbs, mi_col + hbs, subsize, output_enabled, + dummy_cost, pc_tree->split[3]); + } + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} + +// Get a prediction(stored in x->est_pred) for the whole 64x64 superblock. +static void get_estimated_pred(VP9_COMP *cpi, const TileInfo *const tile, + MACROBLOCK *x, int mi_row, int mi_col) { + VP9_COMMON *const cm = &cpi->common; + const int is_key_frame = frame_is_intra_only(cm); + MACROBLOCKD *xd = &x->e_mbd; + + set_offsets(cpi, tile, x, mi_row, mi_col, BLOCK_64X64); + + if (!is_key_frame) { + MODE_INFO *mi = xd->mi[0]; + YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME); + const YV12_BUFFER_CONFIG *yv12_g = NULL; + const BLOCK_SIZE bsize = BLOCK_32X32 + (mi_col + 4 < cm->mi_cols) * 2 + + (mi_row + 4 < cm->mi_rows); + unsigned int y_sad_g, y_sad_thr; + unsigned int y_sad = UINT_MAX; + + assert(yv12 != NULL); + + if (!(is_one_pass_svc(cpi) && cpi->svc.spatial_layer_id) || + cpi->svc.use_gf_temporal_ref_current_layer) { + // For now, GOLDEN will not be used for non-zero spatial layers, since + // it may not be a temporal reference. + yv12_g = get_ref_frame_buffer(cpi, GOLDEN_FRAME); + } + + // Only compute y_sad_g (sad for golden reference) for speed < 8. + if (cpi->oxcf.speed < 8 && yv12_g && yv12_g != yv12 && + (cpi->ref_frame_flags & VP9_GOLD_FLAG)) { + vp9_setup_pre_planes(xd, 0, yv12_g, mi_row, mi_col, + &cm->frame_refs[GOLDEN_FRAME - 1].sf); + y_sad_g = cpi->fn_ptr[bsize].sdf( + x->plane[0].src.buf, x->plane[0].src.stride, xd->plane[0].pre[0].buf, + xd->plane[0].pre[0].stride); + } else { + y_sad_g = UINT_MAX; + } + + if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR && + cpi->rc.is_src_frame_alt_ref) { + yv12 = get_ref_frame_buffer(cpi, ALTREF_FRAME); + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, + &cm->frame_refs[ALTREF_FRAME - 1].sf); + mi->ref_frame[0] = ALTREF_FRAME; + y_sad_g = UINT_MAX; + } else { + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, + &cm->frame_refs[LAST_FRAME - 1].sf); + mi->ref_frame[0] = LAST_FRAME; + } + mi->ref_frame[1] = NO_REF_FRAME; + mi->sb_type = BLOCK_64X64; + mi->mv[0].as_int = 0; + mi->interp_filter = BILINEAR; + + { + const MV dummy_mv = { 0, 0 }; + y_sad = vp9_int_pro_motion_estimation(cpi, x, bsize, mi_row, mi_col, + &dummy_mv); + x->sb_use_mv_part = 1; + x->sb_mvcol_part = mi->mv[0].as_mv.col; + x->sb_mvrow_part = mi->mv[0].as_mv.row; + } + + // Pick ref frame for partitioning, bias last frame when y_sad_g and y_sad + // are close if short_circuit_low_temp_var is on. + y_sad_thr = cpi->sf.short_circuit_low_temp_var ? (y_sad * 7) >> 3 : y_sad; + if (y_sad_g < y_sad_thr) { + vp9_setup_pre_planes(xd, 0, yv12_g, mi_row, mi_col, + &cm->frame_refs[GOLDEN_FRAME - 1].sf); + mi->ref_frame[0] = GOLDEN_FRAME; + mi->mv[0].as_int = 0; + } else { + x->pred_mv[LAST_FRAME] = mi->mv[0].as_mv; + } + + set_ref_ptrs(cm, xd, mi->ref_frame[0], mi->ref_frame[1]); + xd->plane[0].dst.buf = x->est_pred; + xd->plane[0].dst.stride = 64; + vp9_build_inter_predictors_sb(xd, mi_row, mi_col, BLOCK_64X64); + } else { +#if CONFIG_VP9_HIGHBITDEPTH + switch (xd->bd) { + case 8: memset(x->est_pred, 128, 64 * 64 * sizeof(x->est_pred[0])); break; + case 10: + memset(x->est_pred, 128 * 4, 64 * 64 * sizeof(x->est_pred[0])); + break; + case 12: + memset(x->est_pred, 128 * 16, 64 * 64 * sizeof(x->est_pred[0])); + break; + } +#else + memset(x->est_pred, 128, 64 * 64 * sizeof(x->est_pred[0])); +#endif // CONFIG_VP9_HIGHBITDEPTH + } +} + +static void encode_nonrd_sb_row(VP9_COMP *cpi, ThreadData *td, + TileDataEnc *tile_data, int mi_row, + TOKENEXTRA **tp) { + SPEED_FEATURES *const sf = &cpi->sf; + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + const int mi_col_start = tile_info->mi_col_start; + const int mi_col_end = tile_info->mi_col_end; + int mi_col; + const int sb_row = mi_row >> MI_BLOCK_SIZE_LOG2; + const int num_sb_cols = + get_num_cols(tile_data->tile_info, MI_BLOCK_SIZE_LOG2); + int sb_col_in_tile; + + // Initialize the left context for the new SB row + memset(&xd->left_context, 0, sizeof(xd->left_context)); + memset(xd->left_seg_context, 0, sizeof(xd->left_seg_context)); + + // Code each SB in the row + for (mi_col = mi_col_start, sb_col_in_tile = 0; mi_col < mi_col_end; + mi_col += MI_BLOCK_SIZE, ++sb_col_in_tile) { + const struct segmentation *const seg = &cm->seg; + RD_COST dummy_rdc; + const int idx_str = cm->mi_stride * mi_row + mi_col; + MODE_INFO **mi = cm->mi_grid_visible + idx_str; + PARTITION_SEARCH_TYPE partition_search_type = sf->partition_search_type; + BLOCK_SIZE bsize = BLOCK_64X64; + int seg_skip = 0; + int i; + + (*(cpi->row_mt_sync_read_ptr))(&tile_data->row_mt_sync, sb_row, + sb_col_in_tile); + + if (cpi->use_skin_detection) { + vp9_compute_skin_sb(cpi, BLOCK_16X16, mi_row, mi_col); + } + + x->source_variance = UINT_MAX; + for (i = 0; i < MAX_REF_FRAMES; ++i) { + x->pred_mv[i].row = INT16_MAX; + x->pred_mv[i].col = INT16_MAX; + } + vp9_rd_cost_init(&dummy_rdc); + x->color_sensitivity[0] = 0; + x->color_sensitivity[1] = 0; + x->sb_is_skin = 0; + x->skip_low_source_sad = 0; + x->lowvar_highsumdiff = 0; + x->content_state_sb = 0; + x->zero_temp_sad_source = 0; + x->sb_use_mv_part = 0; + x->sb_mvcol_part = 0; + x->sb_mvrow_part = 0; + x->sb_pickmode_part = 0; + x->arf_frame_usage = 0; + x->lastgolden_frame_usage = 0; + + if (cpi->compute_source_sad_onepass && cpi->sf.use_source_sad) { + int shift = cpi->Source->y_stride * (mi_row << 3) + (mi_col << 3); + int sb_offset2 = ((cm->mi_cols + 7) >> 3) * (mi_row >> 3) + (mi_col >> 3); + int64_t source_sad = avg_source_sad(cpi, x, shift, sb_offset2); + if (sf->adapt_partition_source_sad && + (cpi->oxcf.rc_mode == VPX_VBR && !cpi->rc.is_src_frame_alt_ref && + source_sad > sf->adapt_partition_thresh && + (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame))) + partition_search_type = REFERENCE_PARTITION; + } + + if (seg->enabled) { + const uint8_t *const map = + seg->update_map ? cpi->segmentation_map : cm->last_frame_seg_map; + int segment_id = get_segment_id(cm, map, BLOCK_64X64, mi_row, mi_col); + seg_skip = segfeature_active(seg, segment_id, SEG_LVL_SKIP); + + if (cpi->roi.enabled && cpi->roi.skip[BACKGROUND_SEG_SKIP_ID] && + cpi->rc.frames_since_key > FRAMES_NO_SKIPPING_AFTER_KEY && + x->content_state_sb > kLowSadLowSumdiff) { + // For ROI with skip, force segment = 0 (no skip) over whole + // superblock to avoid artifacts if temporal change in source_sad is + // not 0. + int xi, yi; + const int bw = num_8x8_blocks_wide_lookup[BLOCK_64X64]; + const int bh = num_8x8_blocks_high_lookup[BLOCK_64X64]; + const int xmis = VPXMIN(cm->mi_cols - mi_col, bw); + const int ymis = VPXMIN(cm->mi_rows - mi_row, bh); + const int block_index = mi_row * cm->mi_cols + mi_col; + set_mode_info_offsets(cm, x, xd, mi_row, mi_col); + for (yi = 0; yi < ymis; yi++) + for (xi = 0; xi < xmis; xi++) { + int map_offset = block_index + yi * cm->mi_cols + xi; + cpi->segmentation_map[map_offset] = 0; + } + set_segment_index(cpi, x, mi_row, mi_col, BLOCK_64X64, 0); + seg_skip = 0; + } + if (seg_skip) { + partition_search_type = FIXED_PARTITION; + } + } + + // Set the partition type of the 64X64 block + switch (partition_search_type) { + case VAR_BASED_PARTITION: + // TODO(jingning, marpan): The mode decision and encoding process + // support both intra and inter sub8x8 block coding for RTC mode. + // Tune the thresholds accordingly to use sub8x8 block coding for + // coding performance improvement. + choose_partitioning(cpi, tile_info, x, mi_row, mi_col); + nonrd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + break; + case ML_BASED_PARTITION: + get_estimated_pred(cpi, tile_info, x, mi_row, mi_col); + x->max_partition_size = BLOCK_64X64; + x->min_partition_size = BLOCK_8X8; + x->sb_pickmode_part = 1; + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, + BLOCK_64X64, &dummy_rdc, 1, INT64_MAX, + td->pc_root); + break; + case SOURCE_VAR_BASED_PARTITION: + set_source_var_based_partition(cpi, tile_info, x, mi, mi_row, mi_col); + nonrd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + break; + case FIXED_PARTITION: + if (!seg_skip) bsize = sf->always_this_block_size; + set_fixed_partitioning(cpi, tile_info, mi, mi_row, mi_col, bsize); + nonrd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + break; + default: + assert(partition_search_type == REFERENCE_PARTITION); + x->sb_pickmode_part = 1; + set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64); + // Use nonrd_pick_partition on scene-cut for VBR mode. + // nonrd_pick_partition does not support 4x4 partition, so avoid it + // on key frame for now. + if ((cpi->oxcf.rc_mode == VPX_VBR && cpi->rc.high_source_sad && + cpi->oxcf.speed < 6 && !frame_is_intra_only(cm) && + (cpi->refresh_golden_frame || cpi->refresh_alt_ref_frame))) { + // Use lower max_partition_size for low resolutions. + if (cm->width <= 352 && cm->height <= 288) + x->max_partition_size = BLOCK_32X32; + else + x->max_partition_size = BLOCK_64X64; + x->min_partition_size = BLOCK_8X8; + nonrd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, + BLOCK_64X64, &dummy_rdc, 1, INT64_MAX, + td->pc_root); + } else { + choose_partitioning(cpi, tile_info, x, mi_row, mi_col); + // TODO(marpan): Seems like nonrd_select_partition does not support + // 4x4 partition. Since 4x4 is used on key frame, use this switch + // for now. + if (frame_is_intra_only(cm)) + nonrd_use_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + else + nonrd_select_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + } + + break; + } + + // Update ref_frame usage for inter frame if this group is ARF group. + if (!cpi->rc.is_src_frame_alt_ref && !cpi->refresh_golden_frame && + !cpi->refresh_alt_ref_frame && cpi->rc.alt_ref_gf_group && + cpi->sf.use_altref_onepass) { + int sboffset = ((cm->mi_cols + 7) >> 3) * (mi_row >> 3) + (mi_col >> 3); + if (cpi->count_arf_frame_usage != NULL) + cpi->count_arf_frame_usage[sboffset] = x->arf_frame_usage; + if (cpi->count_lastgolden_frame_usage != NULL) + cpi->count_lastgolden_frame_usage[sboffset] = x->lastgolden_frame_usage; + } + + (*(cpi->row_mt_sync_write_ptr))(&tile_data->row_mt_sync, sb_row, + sb_col_in_tile, num_sb_cols); + } +} +// end RTC play code + +static INLINE uint32_t variance(const Diff *const d) { + return d->sse - (uint32_t)(((int64_t)d->sum * d->sum) >> 8); +} + +#if CONFIG_VP9_HIGHBITDEPTH +static INLINE uint32_t variance_highbd(Diff *const d) { + const int64_t var = (int64_t)d->sse - (((int64_t)d->sum * d->sum) >> 8); + return (var >= 0) ? (uint32_t)var : 0; +} +#endif // CONFIG_VP9_HIGHBITDEPTH + +static int set_var_thresh_from_histogram(VP9_COMP *cpi) { + const SPEED_FEATURES *const sf = &cpi->sf; + const VP9_COMMON *const cm = &cpi->common; + + const uint8_t *src = cpi->Source->y_buffer; + const uint8_t *last_src = cpi->Last_Source->y_buffer; + const int src_stride = cpi->Source->y_stride; + const int last_stride = cpi->Last_Source->y_stride; + + // Pick cutoff threshold + const int cutoff = (VPXMIN(cm->width, cm->height) >= 720) + ? (cm->MBs * VAR_HIST_LARGE_CUT_OFF / 100) + : (cm->MBs * VAR_HIST_SMALL_CUT_OFF / 100); + DECLARE_ALIGNED(16, int, hist[VAR_HIST_BINS]); + Diff *var16 = cpi->source_diff_var; + + int sum = 0; + int i, j; + + memset(hist, 0, VAR_HIST_BINS * sizeof(hist[0])); + + for (i = 0; i < cm->mb_rows; i++) { + for (j = 0; j < cm->mb_cols; j++) { +#if CONFIG_VP9_HIGHBITDEPTH + if (cm->use_highbitdepth) { + switch (cm->bit_depth) { + case VPX_BITS_8: + vpx_highbd_8_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + var16->var = variance(var16); + break; + case VPX_BITS_10: + vpx_highbd_10_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + var16->var = variance_highbd(var16); + break; + default: + assert(cm->bit_depth == VPX_BITS_12); + vpx_highbd_12_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + var16->var = variance_highbd(var16); + break; + } + } else { + vpx_get16x16var(src, src_stride, last_src, last_stride, &var16->sse, + &var16->sum); + var16->var = variance(var16); + } +#else + vpx_get16x16var(src, src_stride, last_src, last_stride, &var16->sse, + &var16->sum); + var16->var = variance(var16); +#endif // CONFIG_VP9_HIGHBITDEPTH + + if (var16->var >= VAR_HIST_MAX_BG_VAR) + hist[VAR_HIST_BINS - 1]++; + else + hist[var16->var / VAR_HIST_FACTOR]++; + + src += 16; + last_src += 16; + var16++; + } + + src = src - cm->mb_cols * 16 + 16 * src_stride; + last_src = last_src - cm->mb_cols * 16 + 16 * last_stride; + } + + cpi->source_var_thresh = 0; + + if (hist[VAR_HIST_BINS - 1] < cutoff) { + for (i = 0; i < VAR_HIST_BINS - 1; i++) { + sum += hist[i]; + + if (sum > cutoff) { + cpi->source_var_thresh = (i + 1) * VAR_HIST_FACTOR; + return 0; + } + } + } + + return sf->search_type_check_frequency; +} + +static void source_var_based_partition_search_method(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + SPEED_FEATURES *const sf = &cpi->sf; + + if (cm->frame_type == KEY_FRAME) { + // For key frame, use SEARCH_PARTITION. + sf->partition_search_type = SEARCH_PARTITION; + } else if (cm->intra_only) { + sf->partition_search_type = FIXED_PARTITION; + } else { + if (cm->last_width != cm->width || cm->last_height != cm->height) { + if (cpi->source_diff_var) vpx_free(cpi->source_diff_var); + + CHECK_MEM_ERROR(&cm->error, cpi->source_diff_var, + vpx_calloc(cm->MBs, sizeof(cpi->source_diff_var))); + } + + if (!cpi->frames_till_next_var_check) + cpi->frames_till_next_var_check = set_var_thresh_from_histogram(cpi); + + if (cpi->frames_till_next_var_check > 0) { + sf->partition_search_type = FIXED_PARTITION; + cpi->frames_till_next_var_check--; + } + } +} + +static int get_skip_encode_frame(const VP9_COMMON *cm, ThreadData *const td) { + unsigned int intra_count = 0, inter_count = 0; + int j; + + for (j = 0; j < INTRA_INTER_CONTEXTS; ++j) { + intra_count += td->counts->intra_inter[j][0]; + inter_count += td->counts->intra_inter[j][1]; + } + + return (intra_count << 2) < inter_count && cm->frame_type != KEY_FRAME && + cm->show_frame; +} + +void vp9_init_tile_data(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + const int tile_cols = 1 << cm->log2_tile_cols; + const int tile_rows = 1 << cm->log2_tile_rows; + int tile_col, tile_row; + TOKENEXTRA *pre_tok = cpi->tile_tok[0][0]; + TOKENLIST *tplist = cpi->tplist[0][0]; + int tile_tok = 0; + int tplist_count = 0; + + if (cpi->tile_data == NULL || cpi->allocated_tiles < tile_cols * tile_rows) { + if (cpi->tile_data != NULL) vpx_free(cpi->tile_data); + CHECK_MEM_ERROR( + &cm->error, cpi->tile_data, + vpx_malloc(tile_cols * tile_rows * sizeof(*cpi->tile_data))); + cpi->allocated_tiles = tile_cols * tile_rows; + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + TileDataEnc *tile_data = + &cpi->tile_data[tile_row * tile_cols + tile_col]; + int i, j; + const MV zero_mv = { 0, 0 }; + for (i = 0; i < BLOCK_SIZES; ++i) { + for (j = 0; j < MAX_MODES; ++j) { + tile_data->thresh_freq_fact[i][j] = RD_THRESH_INIT_FACT; + tile_data->thresh_freq_fact_prev[i][j] = RD_THRESH_INIT_FACT; + tile_data->mode_map[i][j] = j; + } + } + tile_data->firstpass_top_mv = zero_mv; +#if CONFIG_MULTITHREAD + tile_data->row_base_thresh_freq_fact = NULL; +#endif + } + } + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) { + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + TileDataEnc *this_tile = &cpi->tile_data[tile_row * tile_cols + tile_col]; + TileInfo *tile_info = &this_tile->tile_info; + if (cpi->sf.adaptive_rd_thresh_row_mt && + this_tile->row_base_thresh_freq_fact == NULL) + vp9_row_mt_alloc_rd_thresh(cpi, this_tile); + vp9_tile_init(tile_info, cm, tile_row, tile_col); + + cpi->tile_tok[tile_row][tile_col] = pre_tok + tile_tok; + pre_tok = cpi->tile_tok[tile_row][tile_col]; + tile_tok = allocated_tokens(*tile_info); + + cpi->tplist[tile_row][tile_col] = tplist + tplist_count; + tplist = cpi->tplist[tile_row][tile_col]; + tplist_count = get_num_vert_units(*tile_info, MI_BLOCK_SIZE_LOG2); + } + } +} + +void vp9_encode_sb_row(VP9_COMP *cpi, ThreadData *td, int tile_row, + int tile_col, int mi_row) { + VP9_COMMON *const cm = &cpi->common; + const int tile_cols = 1 << cm->log2_tile_cols; + TileDataEnc *this_tile = &cpi->tile_data[tile_row * tile_cols + tile_col]; + const TileInfo *const tile_info = &this_tile->tile_info; + TOKENEXTRA *tok = NULL; + int tile_sb_row; + int tile_mb_cols = (tile_info->mi_col_end - tile_info->mi_col_start + 1) >> 1; + + tile_sb_row = mi_cols_aligned_to_sb(mi_row - tile_info->mi_row_start) >> + MI_BLOCK_SIZE_LOG2; + get_start_tok(cpi, tile_row, tile_col, mi_row, &tok); + cpi->tplist[tile_row][tile_col][tile_sb_row].start = tok; + +#if CONFIG_REALTIME_ONLY + assert(cpi->sf.use_nonrd_pick_mode); + encode_nonrd_sb_row(cpi, td, this_tile, mi_row, &tok); +#else + if (cpi->sf.use_nonrd_pick_mode) + encode_nonrd_sb_row(cpi, td, this_tile, mi_row, &tok); + else + encode_rd_sb_row(cpi, td, this_tile, mi_row, &tok); +#endif + + cpi->tplist[tile_row][tile_col][tile_sb_row].stop = tok; + cpi->tplist[tile_row][tile_col][tile_sb_row].count = + (unsigned int)(cpi->tplist[tile_row][tile_col][tile_sb_row].stop - + cpi->tplist[tile_row][tile_col][tile_sb_row].start); + assert(tok - cpi->tplist[tile_row][tile_col][tile_sb_row].start <= + get_token_alloc(MI_BLOCK_SIZE >> 1, tile_mb_cols)); + + (void)tile_mb_cols; +} + +void vp9_encode_tile(VP9_COMP *cpi, ThreadData *td, int tile_row, + int tile_col) { + VP9_COMMON *const cm = &cpi->common; + const int tile_cols = 1 << cm->log2_tile_cols; + TileDataEnc *this_tile = &cpi->tile_data[tile_row * tile_cols + tile_col]; + const TileInfo *const tile_info = &this_tile->tile_info; + const int mi_row_start = tile_info->mi_row_start; + const int mi_row_end = tile_info->mi_row_end; + int mi_row; + + for (mi_row = mi_row_start; mi_row < mi_row_end; mi_row += MI_BLOCK_SIZE) + vp9_encode_sb_row(cpi, td, tile_row, tile_col, mi_row); +} + +static void encode_tiles(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + const int tile_cols = 1 << cm->log2_tile_cols; + const int tile_rows = 1 << cm->log2_tile_rows; + int tile_col, tile_row; + + vp9_init_tile_data(cpi); + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) + for (tile_col = 0; tile_col < tile_cols; ++tile_col) + vp9_encode_tile(cpi, &cpi->td, tile_row, tile_col); +} + +static int compare_kmeans_data(const void *a, const void *b) { + if (((const KMEANS_DATA *)a)->value > ((const KMEANS_DATA *)b)->value) { + return 1; + } else if (((const KMEANS_DATA *)a)->value < + ((const KMEANS_DATA *)b)->value) { + return -1; + } else { + return 0; + } +} + +static void compute_boundary_ls(const double *ctr_ls, int k, + double *boundary_ls) { + // boundary_ls[j] is the upper bound of data centered at ctr_ls[j] + int j; + for (j = 0; j < k - 1; ++j) { + boundary_ls[j] = (ctr_ls[j] + ctr_ls[j + 1]) / 2.; + } + boundary_ls[k - 1] = DBL_MAX; +} + +int vp9_get_group_idx(double value, double *boundary_ls, int k) { + int group_idx = 0; + while (value >= boundary_ls[group_idx]) { + ++group_idx; + if (group_idx == k - 1) { + break; + } + } + return group_idx; +} + +void vp9_kmeans(double *ctr_ls, double *boundary_ls, int *count_ls, int k, + KMEANS_DATA *arr, int size) { + int i, j; + int itr; + int group_idx; + double sum[MAX_KMEANS_GROUPS]; + int count[MAX_KMEANS_GROUPS]; + + vpx_clear_system_state(); + + assert(k >= 2 && k <= MAX_KMEANS_GROUPS); + + qsort(arr, size, sizeof(*arr), compare_kmeans_data); + + // initialize the center points + for (j = 0; j < k; ++j) { + ctr_ls[j] = arr[(size * (2 * j + 1)) / (2 * k)].value; + } + + for (itr = 0; itr < 10; ++itr) { + compute_boundary_ls(ctr_ls, k, boundary_ls); + for (i = 0; i < MAX_KMEANS_GROUPS; ++i) { + sum[i] = 0; + count[i] = 0; + } + + // Both the data and centers are sorted in ascending order. + // As each data point is processed in order, its corresponding group index + // can only increase. So we only need to reset the group index to zero here. + group_idx = 0; + for (i = 0; i < size; ++i) { + while (arr[i].value >= boundary_ls[group_idx]) { + // place samples into clusters + ++group_idx; + if (group_idx == k - 1) { + break; + } + } + sum[group_idx] += arr[i].value; + ++count[group_idx]; + } + + for (group_idx = 0; group_idx < k; ++group_idx) { + if (count[group_idx] > 0) + ctr_ls[group_idx] = sum[group_idx] / count[group_idx]; + + sum[group_idx] = 0; + count[group_idx] = 0; + } + } + + // compute group_idx, boundary_ls and count_ls + for (j = 0; j < k; ++j) { + count_ls[j] = 0; + } + compute_boundary_ls(ctr_ls, k, boundary_ls); + group_idx = 0; + for (i = 0; i < size; ++i) { + while (arr[i].value >= boundary_ls[group_idx]) { + ++group_idx; + if (group_idx == k - 1) { + break; + } + } + arr[i].group_idx = group_idx; + ++count_ls[group_idx]; + } +} + +static void encode_frame_internal(VP9_COMP *cpi) { + SPEED_FEATURES *const sf = &cpi->sf; + ThreadData *const td = &cpi->td; + MACROBLOCK *const x = &td->mb; + VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + const int gf_group_index = cpi->twopass.gf_group.index; + + xd->mi = cm->mi_grid_visible; + xd->mi[0] = cm->mi; + vp9_zero(*td->counts); + vp9_zero(cpi->td.rd_counts); + + xd->lossless = cm->base_qindex == 0 && cm->y_dc_delta_q == 0 && + cm->uv_dc_delta_q == 0 && cm->uv_ac_delta_q == 0; + +#if CONFIG_VP9_HIGHBITDEPTH + if (cm->use_highbitdepth) + x->fwd_txfm4x4 = xd->lossless ? vp9_highbd_fwht4x4 : vpx_highbd_fdct4x4; + else + x->fwd_txfm4x4 = xd->lossless ? vp9_fwht4x4 : vpx_fdct4x4; + x->highbd_inv_txfm_add = + xd->lossless ? vp9_highbd_iwht4x4_add : vp9_highbd_idct4x4_add; +#else + x->fwd_txfm4x4 = xd->lossless ? vp9_fwht4x4 : vpx_fdct4x4; +#endif // CONFIG_VP9_HIGHBITDEPTH + x->inv_txfm_add = xd->lossless ? vp9_iwht4x4_add : vp9_idct4x4_add; + x->optimize = sf->optimize_coefficients == 1 && cpi->oxcf.pass != 1; + if (xd->lossless) x->optimize = 0; + x->sharpness = cpi->oxcf.sharpness; + x->adjust_rdmult_by_segment = (cpi->oxcf.aq_mode == VARIANCE_AQ); + + cm->tx_mode = select_tx_mode(cpi, xd); + + vp9_frame_init_quantizer(cpi); + + vp9_initialize_rd_consts(cpi); + vp9_initialize_me_consts(cpi, x, cm->base_qindex); + init_encode_frame_mb_context(cpi); + cm->use_prev_frame_mvs = + !cm->error_resilient_mode && cm->width == cm->last_width && + cm->height == cm->last_height && !cm->intra_only && cm->last_show_frame; + // Special case: set prev_mi to NULL when the previous mode info + // context cannot be used. + cm->prev_mi = + cm->use_prev_frame_mvs ? cm->prev_mip + cm->mi_stride + 1 : NULL; + + x->quant_fp = cpi->sf.use_quant_fp; + vp9_zero(x->skip_txfm); + if (sf->use_nonrd_pick_mode) { + // Initialize internal buffer pointers for rtc coding, where non-RD + // mode decision is used and hence no buffer pointer swap needed. + int i; + struct macroblock_plane *const p = x->plane; + struct macroblockd_plane *const pd = xd->plane; + PICK_MODE_CONTEXT *ctx = &cpi->td.pc_root->none; + + for (i = 0; i < MAX_MB_PLANE; ++i) { + p[i].coeff = ctx->coeff_pbuf[i][0]; + p[i].qcoeff = ctx->qcoeff_pbuf[i][0]; + pd[i].dqcoeff = ctx->dqcoeff_pbuf[i][0]; + p[i].eobs = ctx->eobs_pbuf[i][0]; + } + vp9_zero(x->zcoeff_blk); + + if (cm->frame_type != KEY_FRAME && cpi->rc.frames_since_golden == 0 && + !(cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) && + !cpi->use_svc) + cpi->ref_frame_flags &= (~VP9_GOLD_FLAG); + + if (sf->partition_search_type == SOURCE_VAR_BASED_PARTITION) + source_var_based_partition_search_method(cpi); + } else if (gf_group_index && gf_group_index < MAX_ARF_GOP_SIZE && + cpi->sf.enable_tpl_model) { + TplDepFrame *tpl_frame = &cpi->tpl_stats[cpi->twopass.gf_group.index]; + TplDepStats *tpl_stats = tpl_frame->tpl_stats_ptr; + + int tpl_stride = tpl_frame->stride; + int64_t intra_cost_base = 0; + int64_t mc_dep_cost_base = 0; + int row, col; + + for (row = 0; row < cm->mi_rows && tpl_frame->is_valid; ++row) { + for (col = 0; col < cm->mi_cols; ++col) { + TplDepStats *this_stats = &tpl_stats[row * tpl_stride + col]; + intra_cost_base += this_stats->intra_cost; + mc_dep_cost_base += this_stats->mc_dep_cost; + } + } + + vpx_clear_system_state(); + + if (tpl_frame->is_valid) + cpi->rd.r0 = (double)intra_cost_base / mc_dep_cost_base; + } + + for (MV_REFERENCE_FRAME ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; + ++ref_frame) { + if (cpi->ref_frame_flags & ref_frame_to_flag(ref_frame)) { + if (cm->frame_refs[ref_frame - 1].sf.x_scale_fp == REF_INVALID_SCALE || + cm->frame_refs[ref_frame - 1].sf.y_scale_fp == REF_INVALID_SCALE) + cpi->ref_frame_flags &= ~ref_frame_to_flag(ref_frame); + } + } + + // Frame segmentation + if (cpi->oxcf.aq_mode == PERCEPTUAL_AQ) build_kmeans_segmentation(cpi); + + { + struct vpx_usec_timer emr_timer; + vpx_usec_timer_start(&emr_timer); + + if (!cpi->row_mt) { + cpi->row_mt_sync_read_ptr = vp9_row_mt_sync_read_dummy; + cpi->row_mt_sync_write_ptr = vp9_row_mt_sync_write_dummy; + // If allowed, encoding tiles in parallel with one thread handling one + // tile when row based multi-threading is disabled. + if (VPXMIN(cpi->oxcf.max_threads, 1 << cm->log2_tile_cols) > 1) + vp9_encode_tiles_mt(cpi); + else + encode_tiles(cpi); + } else { + cpi->row_mt_sync_read_ptr = vp9_row_mt_sync_read; + cpi->row_mt_sync_write_ptr = vp9_row_mt_sync_write; + vp9_encode_tiles_row_mt(cpi); + } + + vpx_usec_timer_mark(&emr_timer); + cpi->time_encode_sb_row += vpx_usec_timer_elapsed(&emr_timer); + } + + sf->skip_encode_frame = + sf->skip_encode_sb ? get_skip_encode_frame(cm, td) : 0; + +#if 0 + // Keep record of the total distortion this time around for future use + cpi->last_frame_distortion = cpi->frame_distortion; +#endif +} + +static INTERP_FILTER get_interp_filter( + const int64_t threshes[SWITCHABLE_FILTER_CONTEXTS], int is_alt_ref) { + if (!is_alt_ref && threshes[EIGHTTAP_SMOOTH] > threshes[EIGHTTAP] && + threshes[EIGHTTAP_SMOOTH] > threshes[EIGHTTAP_SHARP] && + threshes[EIGHTTAP_SMOOTH] > threshes[SWITCHABLE - 1]) { + return EIGHTTAP_SMOOTH; + } else if (threshes[EIGHTTAP_SHARP] > threshes[EIGHTTAP] && + threshes[EIGHTTAP_SHARP] > threshes[SWITCHABLE - 1]) { + return EIGHTTAP_SHARP; + } else if (threshes[EIGHTTAP] > threshes[SWITCHABLE - 1]) { + return EIGHTTAP; + } else { + return SWITCHABLE; + } +} + +static int compute_frame_aq_offset(struct VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + MODE_INFO **mi_8x8_ptr = cm->mi_grid_visible; + struct segmentation *const seg = &cm->seg; + + int mi_row, mi_col; + int sum_delta = 0; + int qdelta_index; + int segment_id; + + for (mi_row = 0; mi_row < cm->mi_rows; mi_row++) { + MODE_INFO **mi_8x8 = mi_8x8_ptr; + for (mi_col = 0; mi_col < cm->mi_cols; mi_col++, mi_8x8++) { + segment_id = mi_8x8[0]->segment_id; + qdelta_index = get_segdata(seg, segment_id, SEG_LVL_ALT_Q); + sum_delta += qdelta_index; + } + mi_8x8_ptr += cm->mi_stride; + } + + return sum_delta / (cm->mi_rows * cm->mi_cols); +} + +static void restore_encode_params(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + int tile_idx; + int i, j; + TileDataEnc *tile_data; + RD_OPT *rd_opt = &cpi->rd; + for (i = 0; i < MAX_REF_FRAMES; i++) { + for (j = 0; j < REFERENCE_MODES; j++) + rd_opt->prediction_type_threshes[i][j] = + rd_opt->prediction_type_threshes_prev[i][j]; + + for (j = 0; j < SWITCHABLE_FILTER_CONTEXTS; j++) + rd_opt->filter_threshes[i][j] = rd_opt->filter_threshes_prev[i][j]; + } + + for (tile_idx = 0; tile_idx < cpi->allocated_tiles; tile_idx++) { + assert(cpi->tile_data); + tile_data = &cpi->tile_data[tile_idx]; + vp9_copy(tile_data->thresh_freq_fact, tile_data->thresh_freq_fact_prev); + } + + cm->interp_filter = cpi->sf.default_interp_filter; +} + +void vp9_encode_frame(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + + restore_encode_params(cpi); + +#if CONFIG_MISMATCH_DEBUG + mismatch_reset_frame(MAX_MB_PLANE); +#endif + + // In the longer term the encoder should be generalized to match the + // decoder such that we allow compound where one of the 3 buffers has a + // different sign bias and that buffer is then the fixed ref. However, this + // requires further work in the rd loop. For now the only supported encoder + // side behavior is where the ALT ref buffer has opposite sign bias to + // the other two. + if (!frame_is_intra_only(cm)) { + if (vp9_compound_reference_allowed(cm)) { + cpi->allow_comp_inter_inter = 1; + vp9_setup_compound_reference_mode(cm); + } else { + cpi->allow_comp_inter_inter = 0; + } + } + + if (cpi->sf.frame_parameter_update) { + int i; + RD_OPT *const rd_opt = &cpi->rd; + FRAME_COUNTS *counts = cpi->td.counts; + RD_COUNTS *const rdc = &cpi->td.rd_counts; + + // 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 than this coding mode. If that is the case, it remembers + // that for subsequent frames. + // It also does the same analysis for transform size selection. + const MV_REFERENCE_FRAME frame_type = get_frame_type(cpi); + int64_t *const mode_thrs = rd_opt->prediction_type_threshes[frame_type]; + int64_t *const filter_thrs = rd_opt->filter_threshes[frame_type]; + const int is_alt_ref = frame_type == ALTREF_FRAME; + + /* prediction (compound, single or hybrid) mode selection */ + if (is_alt_ref || !cpi->allow_comp_inter_inter) + cm->reference_mode = SINGLE_REFERENCE; + else if (mode_thrs[COMPOUND_REFERENCE] > mode_thrs[SINGLE_REFERENCE] && + mode_thrs[COMPOUND_REFERENCE] > mode_thrs[REFERENCE_MODE_SELECT] && + check_dual_ref_flags(cpi) && cpi->static_mb_pct == 100) + cm->reference_mode = COMPOUND_REFERENCE; + else if (mode_thrs[SINGLE_REFERENCE] > mode_thrs[REFERENCE_MODE_SELECT]) + cm->reference_mode = SINGLE_REFERENCE; + else + cm->reference_mode = REFERENCE_MODE_SELECT; + + if (cm->interp_filter == SWITCHABLE) + cm->interp_filter = get_interp_filter(filter_thrs, is_alt_ref); + +#if CONFIG_COLLECT_COMPONENT_TIMING + start_timing(cpi, encode_frame_internal_time); +#endif + encode_frame_internal(cpi); +#if CONFIG_COLLECT_COMPONENT_TIMING + end_timing(cpi, encode_frame_internal_time); +#endif + + for (i = 0; i < REFERENCE_MODES; ++i) + mode_thrs[i] = (mode_thrs[i] + rdc->comp_pred_diff[i] / cm->MBs) / 2; + + for (i = 0; i < SWITCHABLE_FILTER_CONTEXTS; ++i) + filter_thrs[i] = (filter_thrs[i] + rdc->filter_diff[i] / cm->MBs) / 2; + + if (cm->reference_mode == REFERENCE_MODE_SELECT) { + int single_count_zero = 0; + int comp_count_zero = 0; + + for (i = 0; i < COMP_INTER_CONTEXTS; i++) { + single_count_zero += counts->comp_inter[i][0]; + comp_count_zero += counts->comp_inter[i][1]; + } + + if (comp_count_zero == 0) { + cm->reference_mode = SINGLE_REFERENCE; + vp9_zero(counts->comp_inter); + } else if (single_count_zero == 0) { + cm->reference_mode = COMPOUND_REFERENCE; + vp9_zero(counts->comp_inter); + } + } + + if (cm->tx_mode == TX_MODE_SELECT) { + int count4x4 = 0; + int count8x8_lp = 0, count8x8_8x8p = 0; + int count16x16_16x16p = 0, count16x16_lp = 0; + int count32x32 = 0; + + for (i = 0; i < TX_SIZE_CONTEXTS; ++i) { + count4x4 += counts->tx.p32x32[i][TX_4X4]; + count4x4 += counts->tx.p16x16[i][TX_4X4]; + count4x4 += counts->tx.p8x8[i][TX_4X4]; + + count8x8_lp += counts->tx.p32x32[i][TX_8X8]; + count8x8_lp += counts->tx.p16x16[i][TX_8X8]; + count8x8_8x8p += counts->tx.p8x8[i][TX_8X8]; + + count16x16_16x16p += counts->tx.p16x16[i][TX_16X16]; + count16x16_lp += counts->tx.p32x32[i][TX_16X16]; + count32x32 += counts->tx.p32x32[i][TX_32X32]; + } + if (count4x4 == 0 && count16x16_lp == 0 && count16x16_16x16p == 0 && + count32x32 == 0) { + cm->tx_mode = ALLOW_8X8; + reset_skip_tx_size(cm, TX_8X8); + } else if (count8x8_8x8p == 0 && count16x16_16x16p == 0 && + count8x8_lp == 0 && count16x16_lp == 0 && count32x32 == 0) { + cm->tx_mode = ONLY_4X4; + reset_skip_tx_size(cm, TX_4X4); + } else if (count8x8_lp == 0 && count16x16_lp == 0 && count4x4 == 0) { + cm->tx_mode = ALLOW_32X32; + } else if (count32x32 == 0 && count8x8_lp == 0 && count4x4 == 0) { + cm->tx_mode = ALLOW_16X16; + reset_skip_tx_size(cm, TX_16X16); + } + } + } else { + FRAME_COUNTS *counts = cpi->td.counts; + cm->reference_mode = SINGLE_REFERENCE; + if (cpi->allow_comp_inter_inter && cpi->sf.use_compound_nonrd_pickmode && + cpi->rc.alt_ref_gf_group && !cpi->rc.is_src_frame_alt_ref && + cm->frame_type != KEY_FRAME) + cm->reference_mode = REFERENCE_MODE_SELECT; + + encode_frame_internal(cpi); + + if (cm->reference_mode == REFERENCE_MODE_SELECT) { + int single_count_zero = 0; + int comp_count_zero = 0; + int i; + for (i = 0; i < COMP_INTER_CONTEXTS; i++) { + single_count_zero += counts->comp_inter[i][0]; + comp_count_zero += counts->comp_inter[i][1]; + } + if (comp_count_zero == 0) { + cm->reference_mode = SINGLE_REFERENCE; + vp9_zero(counts->comp_inter); + } else if (single_count_zero == 0) { + cm->reference_mode = COMPOUND_REFERENCE; + vp9_zero(counts->comp_inter); + } + } + } + + // If segmented AQ is enabled compute the average AQ weighting. + if (cm->seg.enabled && (cpi->oxcf.aq_mode != NO_AQ) && + (cm->seg.update_map || cm->seg.update_data)) { + cm->seg.aq_av_offset = compute_frame_aq_offset(cpi); + } +} + +static void sum_intra_stats(FRAME_COUNTS *counts, const MODE_INFO *mi) { + const PREDICTION_MODE y_mode = mi->mode; + const PREDICTION_MODE uv_mode = mi->uv_mode; + const BLOCK_SIZE bsize = mi->sb_type; + + if (bsize < BLOCK_8X8) { + int idx, idy; + const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize]; + const int num_4x4_h = num_4x4_blocks_high_lookup[bsize]; + for (idy = 0; idy < 2; idy += num_4x4_h) + for (idx = 0; idx < 2; idx += num_4x4_w) + ++counts->y_mode[0][mi->bmi[idy * 2 + idx].as_mode]; + } else { + ++counts->y_mode[size_group_lookup[bsize]][y_mode]; + } + + ++counts->uv_mode[y_mode][uv_mode]; +} + +static void update_zeromv_cnt(VP9_COMP *const cpi, const MODE_INFO *const mi, + int mi_row, int mi_col, BLOCK_SIZE bsize) { + const VP9_COMMON *const cm = &cpi->common; + MV mv = mi->mv[0].as_mv; + const int bw = num_8x8_blocks_wide_lookup[bsize]; + const int bh = num_8x8_blocks_high_lookup[bsize]; + const int xmis = VPXMIN(cm->mi_cols - mi_col, bw); + const int ymis = VPXMIN(cm->mi_rows - mi_row, bh); + const int block_index = mi_row * cm->mi_cols + mi_col; + int x, y; + for (y = 0; y < ymis; y++) + for (x = 0; x < xmis; x++) { + int map_offset = block_index + y * cm->mi_cols + x; + if (mi->ref_frame[0] == LAST_FRAME && is_inter_block(mi) && + mi->segment_id <= CR_SEGMENT_ID_BOOST2) { + if (abs(mv.row) < 8 && abs(mv.col) < 8) { + if (cpi->consec_zero_mv[map_offset] < 255) + cpi->consec_zero_mv[map_offset]++; + } else { + cpi->consec_zero_mv[map_offset] = 0; + } + } + } +} + +static void encode_superblock(VP9_COMP *cpi, ThreadData *td, TOKENEXTRA **t, + int output_enabled, int mi_row, int mi_col, + BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) { + VP9_COMMON *const cm = &cpi->common; + MACROBLOCK *const x = &td->mb; + MACROBLOCKD *const xd = &x->e_mbd; + MODE_INFO *mi = xd->mi[0]; + const int seg_skip = + segfeature_active(&cm->seg, mi->segment_id, SEG_LVL_SKIP); + x->skip_recode = !x->select_tx_size && mi->sb_type >= BLOCK_8X8 && + cpi->oxcf.aq_mode != COMPLEXITY_AQ && + cpi->oxcf.aq_mode != CYCLIC_REFRESH_AQ && + cpi->sf.allow_skip_recode; + + if (!x->skip_recode && !cpi->sf.use_nonrd_pick_mode) + memset(x->skip_txfm, 0, sizeof(x->skip_txfm)); + + x->skip_optimize = ctx->is_coded; + ctx->is_coded = 1; + x->use_lp32x32fdct = cpi->sf.use_lp32x32fdct; + x->skip_encode = (!output_enabled && cpi->sf.skip_encode_frame && + x->q_index < QIDX_SKIP_THRESH); + + if (x->skip_encode) return; + + if (!is_inter_block(mi)) { + int plane; +#if CONFIG_BETTER_HW_COMPATIBILITY && CONFIG_VP9_HIGHBITDEPTH + if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && + (xd->above_mi == NULL || xd->left_mi == NULL) && + need_top_left[mi->uv_mode]) + assert(0); +#endif // CONFIG_BETTER_HW_COMPATIBILITY && CONFIG_VP9_HIGHBITDEPTH + mi->skip = 1; + for (plane = 0; plane < MAX_MB_PLANE; ++plane) + vp9_encode_intra_block_plane(x, VPXMAX(bsize, BLOCK_8X8), plane, 1); + if (output_enabled) sum_intra_stats(td->counts, mi); + vp9_tokenize_sb(cpi, td, t, !output_enabled, seg_skip, + VPXMAX(bsize, BLOCK_8X8)); + } else { + int ref; + const int is_compound = has_second_ref(mi); + set_ref_ptrs(cm, xd, mi->ref_frame[0], mi->ref_frame[1]); + for (ref = 0; ref < 1 + is_compound; ++ref) { + YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, mi->ref_frame[ref]); + assert(cfg != NULL); + vp9_setup_pre_planes(xd, ref, cfg, mi_row, mi_col, + &xd->block_refs[ref]->sf); + } + if (!(cpi->sf.reuse_inter_pred_sby && ctx->pred_pixel_ready) || seg_skip) + vp9_build_inter_predictors_sby(xd, mi_row, mi_col, + VPXMAX(bsize, BLOCK_8X8)); + + vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, + VPXMAX(bsize, BLOCK_8X8)); + +#if CONFIG_MISMATCH_DEBUG + if (output_enabled) { + int plane; + for (plane = 0; plane < MAX_MB_PLANE; ++plane) { + const struct macroblockd_plane *pd = &xd->plane[plane]; + int pixel_c, pixel_r; + const BLOCK_SIZE plane_bsize = + get_plane_block_size(VPXMAX(bsize, BLOCK_8X8), &xd->plane[plane]); + const int bw = get_block_width(plane_bsize); + const int bh = get_block_height(plane_bsize); + mi_to_pixel_loc(&pixel_c, &pixel_r, mi_col, mi_row, 0, 0, + pd->subsampling_x, pd->subsampling_y); + + mismatch_record_block_pre(pd->dst.buf, pd->dst.stride, plane, pixel_c, + pixel_r, bw, bh, + xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH); + } + } +#endif + + vp9_encode_sb(x, VPXMAX(bsize, BLOCK_8X8), mi_row, mi_col, output_enabled); + vp9_tokenize_sb(cpi, td, t, !output_enabled, seg_skip, + VPXMAX(bsize, BLOCK_8X8)); + } + + if (seg_skip) { + assert(mi->skip); + } + + if (output_enabled) { + if (cm->tx_mode == TX_MODE_SELECT && mi->sb_type >= BLOCK_8X8 && + !(is_inter_block(mi) && mi->skip)) { + ++get_tx_counts(max_txsize_lookup[bsize], get_tx_size_context(xd), + &td->counts->tx)[mi->tx_size]; + } else { + // The new intra coding scheme requires no change of transform size + if (is_inter_block(mi)) { + mi->tx_size = VPXMIN(tx_mode_to_biggest_tx_size[cm->tx_mode], + max_txsize_lookup[bsize]); + } else { + mi->tx_size = (bsize >= BLOCK_8X8) ? mi->tx_size : TX_4X4; + } + } + + ++td->counts->tx.tx_totals[mi->tx_size]; + ++td->counts->tx.tx_totals[get_uv_tx_size(mi, &xd->plane[1])]; + if (cm->seg.enabled && cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && + cpi->cyclic_refresh->content_mode) + vp9_cyclic_refresh_update_sb_postencode(cpi, mi, mi_row, mi_col, bsize); + if (cpi->oxcf.pass == 0 && cpi->svc.temporal_layer_id == 0 && + (!cpi->use_svc || + (cpi->use_svc && + !cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame && + cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 1))) + update_zeromv_cnt(cpi, mi, mi_row, mi_col, bsize); + } +} |