diff options
Diffstat (limited to 'media/libvpx/vp9/encoder/vp9_encodeframe.c')
| -rw-r--r-- | media/libvpx/vp9/encoder/vp9_encodeframe.c | 4236 |
1 files changed, 4236 insertions, 0 deletions
diff --git a/media/libvpx/vp9/encoder/vp9_encodeframe.c b/media/libvpx/vp9/encoder/vp9_encodeframe.c new file mode 100644 index 000000000..49e888768 --- /dev/null +++ b/media/libvpx/vp9/encoder/vp9_encodeframe.c @@ -0,0 +1,4236 @@ +/* + * 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 <limits.h> +#include <math.h> +#include <stdio.h> + +#include "./vp9_rtcd.h" +#include "./vpx_dsp_rtcd.h" +#include "./vpx_config.h" + +#include "vpx_ports/mem.h" +#include "vpx_ports/vpx_timer.h" + +#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_systemdependent.h" +#include "vp9/common/vp9_tile_common.h" + +#include "vp9/encoder/vp9_aq_complexity.h" +#include "vp9/encoder/vp9_aq_cyclicrefresh.h" +#include "vp9/encoder/vp9_aq_variance.h" +#include "vp9/encoder/vp9_encodeframe.h" +#include "vp9/encoder/vp9_encodemb.h" +#include "vp9/encoder/vp9_encodemv.h" +#include "vp9/encoder/vp9_ethread.h" +#include "vp9/encoder/vp9_extend.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 +// purposes 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_perpixel_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 ROUND_POWER_OF_TWO(var, 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) { + 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 ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]); +} +#endif // CONFIG_VP9_HIGHBITDEPTH + +static unsigned int get_sby_perpixel_diff_variance(VP9_COMP *cpi, + const struct buf_2d *ref, + int mi_row, int mi_col, + BLOCK_SIZE bs) { + unsigned int sse, var; + uint8_t *last_y; + const YV12_BUFFER_CONFIG *last = get_ref_frame_buffer(cpi, LAST_FRAME); + + assert(last != NULL); + last_y = + &last->y_buffer[mi_row * MI_SIZE * last->y_stride + mi_col * MI_SIZE]; + var = cpi->fn_ptr[bs].vf(ref->buf, ref->stride, last_y, last->y_stride, &sse); + return ROUND_POWER_OF_TWO(var, num_pels_log2_lookup[bs]); +} + +static BLOCK_SIZE get_rd_var_based_fixed_partition(VP9_COMP *cpi, MACROBLOCK *x, + int mi_row, + int mi_col) { + unsigned int var = get_sby_perpixel_diff_variance(cpi, &x->plane[0].src, + mi_row, mi_col, + BLOCK_64X64); + if (var < 8) + return BLOCK_64X64; + else if (var < 128) + return BLOCK_32X32; + else if (var < 2048) + return BLOCK_16X16; + else + return BLOCK_8X8; +} + +// Lighter version of set_offsets that only sets the mode info +// pointers. +static INLINE void set_mode_info_offsets(VP9_COMMON *const cm, + 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; +} + +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; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi; + const int mi_width = num_8x8_blocks_wide_lookup[bsize]; + const int mi_height = num_8x8_blocks_high_lookup[bsize]; + const struct segmentation *const seg = &cm->seg; + + set_skip_context(xd, mi_row, mi_col); + + set_mode_info_offsets(cm, xd, mi_row, mi_col); + + mbmi = &xd->mi[0]->mbmi; + + // 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. + x->mv_row_min = -(((mi_row + mi_height) * MI_SIZE) + VP9_INTERP_EXTEND); + x->mv_col_min = -(((mi_col + mi_width) * MI_SIZE) + VP9_INTERP_EXTEND); + x->mv_row_max = (cm->mi_rows - mi_row) * MI_SIZE + VP9_INTERP_EXTEND; + x->mv_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; + + // Setup segment ID. + if (seg->enabled) { + if (cpi->oxcf.aq_mode != VARIANCE_AQ) { + const uint8_t *const map = seg->update_map ? cpi->segmentation_map + : cm->last_frame_seg_map; + mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col); + } + vp9_init_plane_quantizers(cpi, x); + + x->encode_breakout = cpi->segment_encode_breakout[mbmi->segment_id]; + } else { + mbmi->segment_id = 0; + x->encode_breakout = cpi->encode_breakout; + } +} + +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 = num_8x8_blocks_wide_lookup[bsize]; + const int block_height = num_8x8_blocks_high_lookup[bsize]; + int i, j; + for (j = 0; j < block_height; ++j) + for (i = 0; i < block_width; ++i) { + if (mi_row + j < cm->mi_rows && mi_col + i < cm->mi_cols) + xd->mi[j * xd->mi_stride + i] = xd->mi[0]; + } +} + +static void set_block_size(VP9_COMP * const cpi, + 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, xd, mi_row, mi_col); + xd->mi[0]->mbmi.sb_type = bsize; + } +} + +typedef struct { + int64_t sum_square_error; + int64_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; + } + case BLOCK_4X4: { + v4x4 *vt = (v4x4 *) data; + node->part_variances = &vt->part_variances; + for (i = 0; i < 4; i++) + node->split[i] = &vt->split[i]; + break; + } + default: { + assert(0); + break; + } + } +} + +// Set variance values given sum square error, sum error, count. +static void fill_variance(int64_t s2, int64_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 - + ((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; + 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, + 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]; + const int low_res = (cm->width <= 352 && cm->height <= 288); + + 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 (low_res || cm->frame_type == KEY_FRAME) + 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, xd, mi_row, mi_col, bsize); + return 1; + } + return 0; + } else if (bsize > bsize_min) { + // Variance already computed to set the force_split. + if (low_res || cm->frame_type == KEY_FRAME) + get_variance(&vt.part_variances->none); + // For key frame: take split for bsize above 32X32 or very high variance. + if (cm->frame_type == KEY_FRAME && + (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, 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, xd, mi_row, mi_col, subsize); + set_block_size(cpi, 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, xd, mi_row, mi_col, subsize); + set_block_size(cpi, xd, mi_row + block_height / 2, mi_col, subsize); + return 1; + } + } + + return 0; + } + return 0; +} + +// 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) { + VP9_COMMON *const cm = &cpi->common; + const int is_key_frame = (cm->frame_type == KEY_FRAME); + const int threshold_multiplier = is_key_frame ? 20 : 1; + const 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 { + thresholds[1] = threshold_base; + if (cm->width <= 352 && cm->height <= 288) { + thresholds[0] = threshold_base >> 2; + thresholds[2] = threshold_base << 3; + } else { + thresholds[0] = threshold_base; + thresholds[1] = (5 * threshold_base) >> 2; + if (cm->width >= 1920 && cm->height >= 1080) + thresholds[1] = (7 * threshold_base) >> 2; + thresholds[2] = threshold_base << cpi->oxcf.speed; + } + } +} + +void vp9_set_variance_partition_thresholds(VP9_COMP *cpi, int q) { + VP9_COMMON *const cm = &cpi->common; + SPEED_FEATURES *const sf = &cpi->sf; + const int is_key_frame = (cm->frame_type == KEY_FRAME); + if (sf->partition_search_type != VAR_BASED_PARTITION && + sf->partition_search_type != REFERENCE_PARTITION) { + return; + } else { + set_vbp_thresholds(cpi, cpi->vbp_thresholds, q); + // The thresholds below are not changed locally. + if (is_key_frame) { + cpi->vbp_threshold_sad = 0; + cpi->vbp_bsize_min = BLOCK_8X8; + } else { + if (cm->width <= 352 && cm->height <= 288) + cpi->vbp_threshold_sad = 100; + 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; + } + 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) { + vp9_highbd_minmax_8x8(s + y8_idx * sp + x8_idx, sp, + d + y8_idx * dp + x8_idx, dp, + &min, &max); + } else { + vp9_minmax_8x8(s + y8_idx * sp + x8_idx, sp, + d + y8_idx * dp + x8_idx, dp, + &min, &max); + } +#else + vp9_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 = vp9_highbd_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) + d_avg = vp9_highbd_avg_4x4(d + y4_idx * dp + x4_idx, dp); + } else { + s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) + d_avg = vp9_avg_4x4(d + y4_idx * dp + x4_idx, dp); + } +#else + s_avg = vp9_avg_4x4(s + y4_idx * sp + x4_idx, sp); + if (!is_key_frame) + d_avg = vp9_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 = vp9_highbd_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) + d_avg = vp9_highbd_avg_8x8(d + y8_idx * dp + x8_idx, dp); + } else { + s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) + d_avg = vp9_avg_8x8(d + y8_idx * dp + x8_idx, dp); + } +#else + s_avg = vp9_avg_8x8(s + y8_idx * sp + x8_idx, sp); + if (!is_key_frame) + d_avg = vp9_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); + } +} + +// 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[16]; + int force_split[21]; + uint8_t *s; + const uint8_t *d; + int sp; + int dp; + 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]}; + + // Always use 4x4 partition for key frame. + const int is_key_frame = (cm->frame_type == KEY_FRAME); + const int use_4x4_partition = is_key_frame; + const int low_res = (cm->width <= 352 && cm->height <= 288); + int variance4x4downsample[16]; + + int segment_id = CR_SEGMENT_ID_BASE; + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled) { + const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map : + cm->last_frame_seg_map; + segment_id = vp9_get_segment_id(cm, map, BLOCK_64X64, mi_row, mi_col); + + if (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); + } + } + + set_offsets(cpi, tile, x, mi_row, mi_col, BLOCK_64X64); + + 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; + + if (!is_key_frame && !(is_one_pass_cbr_svc(cpi) && + cpi->svc.layer_context[cpi->svc.temporal_layer_id].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. + MB_MODE_INFO *mbmi = &xd->mi[0]->mbmi; + unsigned int uv_sad; + const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, LAST_FRAME); + + const YV12_BUFFER_CONFIG *yv12_g = NULL; + unsigned int y_sad, y_sad_g; + const BLOCK_SIZE bsize = BLOCK_32X32 + + (mi_col + 4 < cm->mi_cols) * 2 + (mi_row + 4 < cm->mi_rows); + + assert(yv12 != NULL); + + if (!(is_one_pass_cbr_svc(cpi) && cpi->svc.spatial_layer_id)) { + // 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); + } + + if (yv12_g && yv12_g != yv12) { + 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; + } + + vp9_setup_pre_planes(xd, 0, yv12, mi_row, mi_col, + &cm->frame_refs[LAST_FRAME - 1].sf); + mbmi->ref_frame[0] = LAST_FRAME; + mbmi->ref_frame[1] = NONE; + mbmi->sb_type = BLOCK_64X64; + mbmi->mv[0].as_int = 0; + mbmi->interp_filter = BILINEAR; + + y_sad = vp9_int_pro_motion_estimation(cpi, x, bsize, mi_row, mi_col); + if (y_sad_g < y_sad) { + vp9_setup_pre_planes(xd, 0, yv12_g, mi_row, mi_col, + &cm->frame_refs[GOLDEN_FRAME - 1].sf); + mbmi->ref_frame[0] = GOLDEN_FRAME; + mbmi->mv[0].as_int = 0; + y_sad = y_sad_g; + } else { + x->pred_mv[LAST_FRAME] = mbmi->mv[0].as_mv; + } + + vp9_build_inter_predictors_sb(xd, mi_row, mi_col, BLOCK_64X64); + + for (i = 1; i <= 2; ++i) { + 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 = UINT_MAX; + else + uv_sad = cpi->fn_ptr[bs].sdf(p->src.buf, p->src.stride, + pd->dst.buf, pd->dst.stride); + + x->color_sensitivity[i - 1] = uv_sad > (y_sad >> 2); + } + + 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, xd, mi_row, mi_col, BLOCK_64X64); + 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 + } + + // Index for force_split: 0 for 64x64, 1-4 for 32x32 blocks, + // 5-20 for the 16x16 blocks. + force_split[0] = 0; + // 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; + 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); + 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 (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); + if (minmax > cpi->vbp_threshold_minmax) { + force_split[split_index] = 1; + force_split[i + 1] = 1; + force_split[0] = 1; + } + } + } + // TODO(marpan): There is an issue with variance based on 4x4 average in + // svc mode, don't allow it for now. + if (is_key_frame || (low_res && !cpi->use_svc && + vt.split[i].split[j].part_variances.none.variance > + (thresholds[1] << 1))) { + 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); + } + } + } + } + + // Fill the rest of the variance tree by summing split partition values. + 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); + } + } + fill_variance_tree(&vt.split[i], BLOCK_32X32); + // If variance of this 32x32 block is above the threshold, force the 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); + if (vt.split[i].part_variances.none.variance > thresholds[1]) { + force_split[i + 1] = 1; + force_split[0] = 1; + } + } + } + if (!force_split[0]) { + fill_variance_tree(&vt, BLOCK_64X64); + get_variance(&vt.part_variances.none); + } + + // 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, 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, 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_partioning(), 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, 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, 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, xd, + (mi_row + y32_idx + y16_idx + y8_idx), + (mi_col + x32_idx + x16_idx + x8_idx), + BLOCK_4X4); + } + } else { + set_block_size(cpi, xd, + (mi_row + y32_idx + y16_idx + y8_idx), + (mi_col + x32_idx + x16_idx + x8_idx), + BLOCK_8X8); + } + } + } + } + } + } + } + return 0; +} + +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; + MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; + MODE_INFO *mi_addr = xd->mi[0]; + const struct segmentation *const seg = &cm->seg; + const int bw = num_8x8_blocks_wide_lookup[mi->mbmi.sb_type]; + const int bh = num_8x8_blocks_high_lookup[mi->mbmi.sb_type]; + const int x_mis = MIN(bw, cm->mi_cols - mi_col); + const int y_mis = MIN(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->mbmi.sb_type == bsize); + + *mi_addr = *mi; + + // 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->mbmi.segment_id = + vp9_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) { + vp9_cyclic_refresh_update_segment(cpi, &xd->mi[0]->mbmi, mi_row, + mi_col, bsize, ctx->rate, ctx->dist, + x->skip); + } + } + + max_plane = is_inter_block(mbmi) ? 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) + vp9_init_plane_quantizers(cpi, x); + + // FIXME(rbultje) I'm pretty sure this should go to the end of this block + // (i.e. after the output_enabled) + if (bsize < BLOCK_32X32) { + if (bsize < BLOCK_16X16) + ctx->tx_rd_diff[ALLOW_16X16] = ctx->tx_rd_diff[ALLOW_8X8]; + ctx->tx_rd_diff[ALLOW_32X32] = ctx->tx_rd_diff[ALLOW_16X16]; + } + + if (is_inter_block(mbmi) && mbmi->sb_type < BLOCK_8X8) { + mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int; + mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int; + } + + x->skip = ctx->skip; + memcpy(x->zcoeff_blk[mbmi->tx_size], ctx->zcoeff_blk, + sizeof(uint8_t) * ctx->num_4x4_blk); + + if (!output_enabled) + return; + + if (!vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { + for (i = 0; i < TX_MODES; i++) + rdc->tx_select_diff[i] += ctx->tx_rd_diff[i]; + } + +#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[mbmi->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(mbmi)) { + vp9_update_mv_count(td); + + if (cm->interp_filter == SWITCHABLE) { + const int ctx = vp9_get_pred_context_switchable_interp(xd); + ++td->counts->switchable_interp[ctx][mbmi->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->mbmi.ref_frame[0]; + mv->ref_frame[1] = mi->mbmi.ref_frame[1]; + mv->mv[0].as_int = mi->mbmi.mv[0].as_int; + mv->mv[1].as_int = mi->mbmi.mv[1].as_int; + } + } +} + +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, + RD_COST *rd_cost, BLOCK_SIZE bsize) { + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; + INTERP_FILTER filter_ref; + + if (xd->up_available) + filter_ref = xd->mi[-xd->mi_stride]->mbmi.interp_filter; + else if (xd->left_available) + filter_ref = xd->mi[-1]->mbmi.interp_filter; + else + filter_ref = EIGHTTAP; + + mbmi->sb_type = bsize; + mbmi->mode = ZEROMV; + mbmi->tx_size = MIN(max_txsize_lookup[bsize], + tx_mode_to_biggest_tx_size[tx_mode]); + mbmi->skip = 1; + mbmi->uv_mode = DC_PRED; + mbmi->ref_frame[0] = LAST_FRAME; + mbmi->ref_frame[1] = NONE; + mbmi->mv[0].as_int = 0; + mbmi->interp_filter = filter_ref; + + xd->mi[0]->bmi[0].as_mv[0].as_int = 0; + x->skip = 1; + + vp9_rd_cost_init(rd_cost); +} + +static int set_segment_rdmult(VP9_COMP *const cpi, + MACROBLOCK *const x, + int8_t segment_id) { + int segment_qindex; + VP9_COMMON *const cm = &cpi->common; + vp9_init_plane_quantizers(cpi, x); + vp9_clear_system_state(); + segment_qindex = vp9_get_qindex(&cm->seg, segment_id, + cm->base_qindex); + return vp9_compute_rd_mult(cpi, segment_qindex + cm->y_dc_delta_q); +} + +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, + int64_t best_rd) { + VP9_COMMON *const cm = &cpi->common; + TileInfo *const tile_info = &tile_data->tile_info; + MACROBLOCKD *const xd = &x->e_mbd; + MB_MODE_INFO *mbmi; + 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; + + vp9_clear_system_state(); + + // 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); + mbmi = &xd->mi[0]->mbmi; + mbmi->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 + mbmi->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 (aq_mode == VARIANCE_AQ) { + const int energy = bsize <= BLOCK_16X16 ? x->mb_energy + : vp9_block_energy(cpi, x, bsize); + if (cm->frame_type == KEY_FRAME || + cpi->refresh_alt_ref_frame || + (cpi->refresh_golden_frame && !cpi->rc.is_src_frame_alt_ref)) { + mbmi->segment_id = vp9_vaq_segment_id(energy); + } else { + const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map + : cm->last_frame_seg_map; + mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col); + } + x->rdmult = set_segment_rdmult(cpi, x, mbmi->segment_id); + } else if (aq_mode == COMPLEXITY_AQ) { + x->rdmult = set_segment_rdmult(cpi, x, mbmi->segment_id); + } else if (aq_mode == CYCLIC_REFRESH_AQ) { + const uint8_t *const map = cm->seg.update_map ? cpi->segmentation_map + : cm->last_frame_seg_map; + // If segment is boosted, use rdmult for that segment. + if (cyclic_refresh_segment_id_boosted( + vp9_get_segment_id(cm, map, bsize, mi_row, mi_col))) + x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh); + } + + // 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 (vp9_segfeature_active(&cm->seg, mbmi->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); + } else { + vp9_rd_pick_inter_mode_sub8x8(cpi, tile_data, x, mi_row, mi_col, + rd_cost, bsize, ctx, best_rd); + } + } + + + // 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); + } + + x->rdmult = orig_rdmult; + + // 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->rdcost = INT64_MAX; + + ctx->rate = rd_cost->rate; + ctx->dist = rd_cost->dist; +} + +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 *const mbmi = &mi->mbmi; + const BLOCK_SIZE bsize = mbmi->sb_type; + + if (!frame_is_intra_only(cm)) { + FRAME_COUNTS *const counts = td->counts; + const int inter_block = is_inter_block(mbmi); + const int seg_ref_active = vp9_segfeature_active(&cm->seg, mbmi->segment_id, + SEG_LVL_REF_FRAME); + if (!seg_ref_active) { + counts->intra_inter[vp9_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 = mbmi->ref_frame[0]; + if (cm->reference_mode == REFERENCE_MODE_SELECT) + counts->comp_inter[vp9_get_reference_mode_context(cm, xd)] + [has_second_ref(mbmi)]++; + + if (has_second_ref(mbmi)) { + counts->comp_ref[vp9_get_pred_context_comp_ref_p(cm, xd)] + [ref0 == GOLDEN_FRAME]++; + } 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 && + !vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) { + const int mode_ctx = mbmi->mode_context[mbmi->ref_frame[0]]; + if (bsize >= BLOCK_8X8) { + const PREDICTION_MODE mode = mbmi->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)]; + } + } + } + } + } +} + +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); + 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; + case 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; + default: + assert(0 && "Invalid partition type."); + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} + +// 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 MIN(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]->mbmi.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]->mbmi.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); + } +} + +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, 4 * sizeof(diff)); + + 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]->mbmi.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 = d32[i].sse - (((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]->mbmi.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]->mbmi.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]; + MB_MODE_INFO *const mbmi = &xd->mi[0]->mbmi; + const struct segmentation *const seg = &cm->seg; + const int bw = num_8x8_blocks_wide_lookup[mi->mbmi.sb_type]; + const int bh = num_8x8_blocks_high_lookup[mi->mbmi.sb_type]; + const int x_mis = MIN(bw, cm->mi_cols - mi_col); + const int y_mis = MIN(bh, cm->mi_rows - mi_row); + + *(xd->mi[0]) = ctx->mic; + + if (seg->enabled && cpi->oxcf.aq_mode) { + // For in frame complexity AQ or variance AQ, copy segment_id from + // segmentation_map. + if (cpi->oxcf.aq_mode == COMPLEXITY_AQ || + cpi->oxcf.aq_mode == VARIANCE_AQ ) { + const uint8_t *const map = seg->update_map ? cpi->segmentation_map + : cm->last_frame_seg_map; + mbmi->segment_id = vp9_get_segment_id(cm, map, bsize, mi_row, mi_col); + } else { + // Setting segmentation map for cyclic_refresh. + vp9_cyclic_refresh_update_segment(cpi, mbmi, mi_row, mi_col, bsize, + ctx->rate, ctx->dist, x->skip); + } + vp9_init_plane_quantizers(cpi, x); + } + + if (is_inter_block(mbmi)) { + vp9_update_mv_count(td); + if (cm->interp_filter == SWITCHABLE) { + const int pred_ctx = vp9_get_pred_context_switchable_interp(xd); + ++td->counts->switchable_interp[pred_ctx][mbmi->interp_filter]; + } + + if (mbmi->sb_type < BLOCK_8X8) { + mbmi->mv[0].as_int = mi->bmi[3].as_mv[0].as_int; + mbmi->mv[1].as_int = mi->bmi[3].as_mv[1].as_int; + } + } + + if (cm->use_prev_frame_mvs) { + 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->mbmi.ref_frame[0]; + mv->ref_frame[1] = mi->mbmi.ref_frame[1]; + mv->mv[0].as_int = mi->mbmi.mv[0].as_int; + mv->mv[1].as_int = mi->mbmi.mv[1].as_int; + } + } + } + + x->skip = ctx->skip; + x->skip_txfm[0] = mbmi->segment_id ? 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); + +#if CONFIG_VP9_TEMPORAL_DENOISING + if (cpi->oxcf.noise_sensitivity > 0 && output_enabled && + cpi->common.frame_type != KEY_FRAME) { + vp9_denoiser_denoise(&cpi->denoiser, x, mi_row, mi_col, + MAX(BLOCK_8X8, bsize), ctx); + } +#endif + + 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]->mbmi.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; + case 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; + default: + assert(0 && "Invalid partition type."); + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} + +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]->mbmi.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) { + 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->mbmi.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, 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]->mbmi.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, INT64_MAX); + break; + case PARTITION_HORZ: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + subsize, &pc_tree->horizontal[0], + 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 *ctx = &pc_tree->horizontal[0]; + vp9_rd_cost_init(&tmp_rdc); + update_state(cpi, td, ctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, ctx); + rd_pick_sb_modes(cpi, tile_data, x, + mi_row + (mi_step >> 1), mi_col, &tmp_rdc, + subsize, &pc_tree->horizontal[1], 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: + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &last_part_rdc, + subsize, &pc_tree->vertical[0], 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 *ctx = &pc_tree->vertical[0]; + vp9_rd_cost_init(&tmp_rdc); + update_state(cpi, td, ctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, ctx); + rd_pick_sb_modes(cpi, tile_data, x, + mi_row, mi_col + (mi_step >> 1), &tmp_rdc, + subsize, &pc_tree->vertical[bsize > BLOCK_8X8], + 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_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], 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; + default: + assert(0); + 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; + ENTROPY_CONTEXT l[16 * MAX_MB_PLANE], a[16 * MAX_MB_PLANE]; + PARTITION_CONTEXT sl[8], sa[8]; + + 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, 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]->mbmi.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->mbmi.sb_type : 0; + bs_hist[sb_type]++; + *min_block_size = MIN(*min_block_size, sb_type); + *max_block_size = MAX(*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_available && mi[-1]; + const int above_in_image = xd->up_available && mi[-xd->mi_stride]; + 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); + min_size = MIN(cpi->sf.rd_auto_partition_min_limit, MIN(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; +} + +static void 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_8x8 = xd->mi; + const int left_in_image = xd->left_available && mi_8x8[-1]; + const int above_in_image = xd->up_available && mi_8x8[-xd->mi_stride]; + int row8x8_remaining = tile->mi_row_end - mi_row; + int col8x8_remaining = tile->mi_col_end - mi_col; + int bh, bw; + BLOCK_SIZE min_size = BLOCK_32X32; + BLOCK_SIZE max_size = BLOCK_8X8; + int bsl = mi_width_log2_lookup[BLOCK_64X64]; + const int search_range_ctrl = (((mi_row + mi_col) >> bsl) + + get_chessboard_index(cm->current_video_frame)) & 0x1; + // Trap case where we do not have a prediction. + if (search_range_ctrl && + (left_in_image || above_in_image || cm->frame_type != KEY_FRAME)) { + int block; + MODE_INFO **mi; + BLOCK_SIZE sb_type; + + // Find the min and max partition sizes used in the left SB64. + if (left_in_image) { + MODE_INFO *cur_mi; + mi = &mi_8x8[-1]; + for (block = 0; block < MI_BLOCK_SIZE; ++block) { + cur_mi = mi[block * xd->mi_stride]; + sb_type = cur_mi ? cur_mi->mbmi.sb_type : 0; + min_size = MIN(min_size, sb_type); + max_size = MAX(max_size, sb_type); + } + } + // Find the min and max partition sizes used in the above SB64. + if (above_in_image) { + mi = &mi_8x8[-xd->mi_stride * MI_BLOCK_SIZE]; + for (block = 0; block < MI_BLOCK_SIZE; ++block) { + sb_type = mi[block] ? mi[block]->mbmi.sb_type : 0; + min_size = MIN(min_size, sb_type); + max_size = MAX(max_size, sb_type); + } + } + + min_size = min_partition_size[min_size]; + max_size = find_partition_size(max_size, row8x8_remaining, col8x8_remaining, + &bh, &bw); + min_size = MIN(min_size, max_size); + min_size = MAX(min_size, BLOCK_8X8); + max_size = MIN(max_size, BLOCK_32X32); + } else { + min_size = BLOCK_8X8; + max_size = BLOCK_32X32; + } + + *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; + + if (prev_mi) { + 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->mbmi.sb_type : bsize; + min_size = MIN(min_size, bs); + max_size = MAX(max_size, bs); + } + } + } + + if (xd->left_available) { + for (idy = 0; idy < mi_height; ++idy) { + mi = xd->mi[idy * cm->mi_stride - 1]; + bs = mi ? mi->mbmi.sb_type : bsize; + min_size = MIN(min_size, bs); + max_size = MAX(max_size, bs); + } + } + + if (xd->up_available) { + for (idx = 0; idx < mi_width; ++idx) { + mi = xd->mi[idx - cm->mi_stride]; + bs = mi ? mi->mbmi.sb_type : bsize; + min_size = MIN(min_size, bs); + max_size = MAX(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; +} + +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)); +} + +#if CONFIG_FP_MB_STATS +const int num_16x16_blocks_wide_lookup[BLOCK_SIZES] = + {1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 4, 4}; +const int num_16x16_blocks_high_lookup[BLOCK_SIZES] = + {1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 4, 2, 4}; +const int qindex_skip_threshold_lookup[BLOCK_SIZES] = + {0, 10, 10, 30, 40, 40, 60, 80, 80, 90, 100, 100, 120}; +const int qindex_split_threshold_lookup[BLOCK_SIZES] = + {0, 3, 3, 7, 15, 15, 30, 40, 40, 60, 80, 80, 120}; +const int complexity_16x16_blocks_threshold[BLOCK_SIZES] = + {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 4, 6}; + +typedef enum { + MV_ZERO = 0, + MV_LEFT = 1, + MV_UP = 2, + MV_RIGHT = 3, + MV_DOWN = 4, + MV_INVALID +} MOTION_DIRECTION; + +static INLINE MOTION_DIRECTION get_motion_direction_fp(uint8_t fp_byte) { + if (fp_byte & FPMB_MOTION_ZERO_MASK) { + return MV_ZERO; + } else if (fp_byte & FPMB_MOTION_LEFT_MASK) { + return MV_LEFT; + } else if (fp_byte & FPMB_MOTION_RIGHT_MASK) { + return MV_RIGHT; + } else if (fp_byte & FPMB_MOTION_UP_MASK) { + return MV_UP; + } else { + return MV_DOWN; + } +} + +static INLINE int get_motion_inconsistency(MOTION_DIRECTION this_mv, + MOTION_DIRECTION that_mv) { + if (this_mv == that_mv) { + return 0; + } else { + return abs(this_mv - that_mv) == 2 ? 2 : 1; + } +} +#endif + +// 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 void 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, + int64_t best_rd, 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 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 *ctx = &pc_tree->none; + int i, pl; + BLOCK_SIZE subsize; + 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 + 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; + +#if CONFIG_FP_MB_STATS + unsigned int src_diff_var = UINT_MAX; + int none_complexity = 0; +#endif + + 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; + (void) *tp_orig; + + assert(num_8x8_blocks_wide_lookup[bsize] == + num_8x8_blocks_high_lookup[bsize]); + + vp9_rd_cost_init(&this_rdc); + vp9_rd_cost_init(&sum_rdc); + vp9_rd_cost_reset(&best_rdc); + best_rdc.rdcost = best_rd; + + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + + if (bsize == BLOCK_16X16 && cpi->oxcf.aq_mode) + 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); + } + + // 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 && bsize >= min_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) { + partition_horz_allowed &= force_horz_split; + partition_vert_allowed &= force_vert_split; + } + + save_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + +#if CONFIG_FP_MB_STATS + if (cpi->use_fp_mb_stats) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + src_diff_var = get_sby_perpixel_diff_variance(cpi, &x->plane[0].src, + mi_row, mi_col, bsize); + } +#endif + +#if CONFIG_FP_MB_STATS + // Decide whether we shall split directly and skip searching NONE by using + // the first pass block statistics + if (cpi->use_fp_mb_stats && bsize >= BLOCK_32X32 && do_split && + partition_none_allowed && src_diff_var > 4 && + cm->base_qindex < qindex_split_threshold_lookup[bsize]) { + int mb_row = mi_row >> 1; + int mb_col = mi_col >> 1; + int mb_row_end = + MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows); + int mb_col_end = + MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols); + int r, c; + + // compute a complexity measure, basically measure inconsistency of motion + // vectors obtained from the first pass in the current block + for (r = mb_row; r < mb_row_end ; r++) { + for (c = mb_col; c < mb_col_end; c++) { + const int mb_index = r * cm->mb_cols + c; + + MOTION_DIRECTION this_mv; + MOTION_DIRECTION right_mv; + MOTION_DIRECTION bottom_mv; + + this_mv = + get_motion_direction_fp(cpi->twopass.this_frame_mb_stats[mb_index]); + + // to its right + if (c != mb_col_end - 1) { + right_mv = get_motion_direction_fp( + cpi->twopass.this_frame_mb_stats[mb_index + 1]); + none_complexity += get_motion_inconsistency(this_mv, right_mv); + } + + // to its bottom + if (r != mb_row_end - 1) { + bottom_mv = get_motion_direction_fp( + cpi->twopass.this_frame_mb_stats[mb_index + cm->mb_cols]); + none_complexity += get_motion_inconsistency(this_mv, bottom_mv); + } + + // do not count its left and top neighbors to avoid double counting + } + } + + if (none_complexity > complexity_16x16_blocks_threshold[bsize]) { + partition_none_allowed = 0; + } + } +#endif + + // PARTITION_NONE + if (partition_none_allowed) { + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, + &this_rdc, bsize, ctx, best_rdc.rdcost); + if (this_rdc.rate != INT_MAX) { + if (bsize >= BLOCK_8X8) { + 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) { + int64_t dist_breakout_thr = cpi->sf.partition_search_breakout_dist_thr; + int rate_breakout_thr = cpi->sf.partition_search_breakout_rate_thr; + + best_rdc = this_rdc; + if (bsize >= BLOCK_8X8) + pc_tree->partitioning = PARTITION_NONE; + + // Adjust dist breakout threshold according to the partition size. + dist_breakout_thr >>= 8 - (b_width_log2_lookup[bsize] + + b_height_log2_lookup[bsize]); + + rate_breakout_thr *= num_pels_log2_lookup[bsize]; + + // If all y, u, v transform blocks in this partition are skippable, and + // the dist & rate are within the thresholds, the partition search is + // terminated for current branch of the partition search tree. + // The dist & rate thresholds are set to 0 at speed 0 to disable the + // early termination at that speed. + if (!x->e_mbd.lossless && + (ctx->skippable && best_rdc.dist < dist_breakout_thr && + best_rdc.rate < rate_breakout_thr)) { + do_split = 0; + do_rect = 0; + } + +#if CONFIG_FP_MB_STATS + // Check if every 16x16 first pass block statistics has zero + // motion and the corresponding first pass residue is small enough. + // If that is the case, check the difference variance between the + // current frame and the last frame. If the variance is small enough, + // stop further splitting in RD optimization + if (cpi->use_fp_mb_stats && do_split != 0 && + cm->base_qindex > qindex_skip_threshold_lookup[bsize]) { + int mb_row = mi_row >> 1; + int mb_col = mi_col >> 1; + int mb_row_end = + MIN(mb_row + num_16x16_blocks_high_lookup[bsize], cm->mb_rows); + int mb_col_end = + MIN(mb_col + num_16x16_blocks_wide_lookup[bsize], cm->mb_cols); + int r, c; + + int skip = 1; + for (r = mb_row; r < mb_row_end; r++) { + for (c = mb_col; c < mb_col_end; c++) { + const int mb_index = r * cm->mb_cols + c; + if (!(cpi->twopass.this_frame_mb_stats[mb_index] & + FPMB_MOTION_ZERO_MASK) || + !(cpi->twopass.this_frame_mb_stats[mb_index] & + FPMB_ERROR_SMALL_MASK)) { + skip = 0; + break; + } + } + if (skip == 0) { + break; + } + } + if (skip) { + if (src_diff_var == UINT_MAX) { + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + src_diff_var = get_sby_perpixel_diff_variance( + cpi, &x->plane[0].src, mi_row, mi_col, bsize); + } + if (src_diff_var < 8) { + do_split = 0; + do_rect = 0; + } + } + } +#endif + } + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + // store estimated motion vector + if (cpi->sf.adaptive_motion_search) + store_pred_mv(x, ctx); + + // 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. + if (do_split) { + subsize = get_subsize(bsize, PARTITION_SPLIT); + if (bsize == BLOCK_8X8) { + i = 4; + if (cpi->sf.adaptive_pred_interp_filter && partition_none_allowed) + pc_tree->leaf_split[0]->pred_interp_filter = + ctx->mic.mbmi.interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + pc_tree->leaf_split[0], best_rdc.rdcost); + if (sum_rdc.rate == INT_MAX) + sum_rdc.rdcost = INT64_MAX; + } else { + for (i = 0; i < 4 && sum_rdc.rdcost < best_rdc.rdcost; ++i) { + const int x_idx = (i & 1) * mi_step; + const int y_idx = (i >> 1) * mi_step; + + if (mi_row + y_idx >= cm->mi_rows || mi_col + x_idx >= cm->mi_cols) + continue; + + if (cpi->sf.adaptive_motion_search) + load_pred_mv(x, ctx); + + pc_tree->split[i]->index = i; + rd_pick_partition(cpi, td, tile_data, tp, + mi_row + y_idx, mi_col + x_idx, + subsize, &this_rdc, + best_rdc.rdcost - sum_rdc.rdcost, pc_tree->split[i]); + + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + break; + } 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 && i == 4) { + 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); + + 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 (cpi->sf.less_rectangular_check) + do_rect &= !partition_none_allowed; + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + // PARTITION_HORZ + if (partition_horz_allowed && do_rect) { + subsize = get_subsize(bsize, PARTITION_HORZ); + if (cpi->sf.adaptive_motion_search) + 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 = + ctx->mic.mbmi.interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->horizontal[0], best_rdc.rdcost); + + if (sum_rdc.rdcost < best_rdc.rdcost && mi_row + mi_step < cm->mi_rows && + bsize > BLOCK_8X8) { + PICK_MODE_CONTEXT *ctx = &pc_tree->horizontal[0]; + update_state(cpi, td, ctx, mi_row, mi_col, subsize, 0); + encode_superblock(cpi, td, tp, 0, mi_row, mi_col, subsize, ctx); + + if (cpi->sf.adaptive_motion_search) + load_pred_mv(x, ctx); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->horizontal[1].pred_interp_filter = + ctx->mic.mbmi.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.rdcost - sum_rdc.rdcost); + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } 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) { + pl = partition_plane_context(xd, mi_row, mi_col, bsize); + sum_rdc.rate += cpi->partition_cost[pl][PARTITION_HORZ]; + 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; + } + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + // PARTITION_VERT + if (partition_vert_allowed && do_rect) { + subsize = get_subsize(bsize, PARTITION_VERT); + + if (cpi->sf.adaptive_motion_search) + 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 = + ctx->mic.mbmi.interp_filter; + rd_pick_sb_modes(cpi, tile_data, x, mi_row, mi_col, &sum_rdc, subsize, + &pc_tree->vertical[0], best_rdc.rdcost); + 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_motion_search) + load_pred_mv(x, ctx); + if (cpi->sf.adaptive_pred_interp_filter && bsize == BLOCK_8X8 && + partition_none_allowed) + pc_tree->vertical[1].pred_interp_filter = + ctx->mic.mbmi.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.rdcost - sum_rdc.rdcost); + if (this_rdc.rate == INT_MAX) { + sum_rdc.rdcost = INT64_MAX; + } 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) { + pl = partition_plane_context(xd, mi_row, mi_col, bsize); + sum_rdc.rate += cpi->partition_cost[pl][PARTITION_VERT]; + 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; + } + } + restore_context(x, mi_row, mi_col, a, l, sa, sl, bsize); + } + + // TODO(jbb): This code added so that we avoid static analysis + // warning related to the fact that best_rd isn't used after this + // point. This code should be refactored so that the duplicate + // checks occur in some sub function and thus are used... + (void) best_rd; + *rd_cost = best_rdc; + + + if (best_rdc.rate < INT_MAX && best_rdc.dist < INT64_MAX && + pc_tree->index != 3) { + int output_enabled = (bsize == BLOCK_64X64); + encode_sb(cpi, td, tile_info, tp, mi_row, mi_col, output_enabled, + bsize, pc_tree); + } + + 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); + } +} + +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; + int mi_col; + + // 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 = tile_info->mi_col_start; mi_col < tile_info->mi_col_end; + mi_col += MI_BLOCK_SIZE) { + const struct segmentation *const seg = &cm->seg; + int dummy_rate; + int64_t dummy_dist; + RD_COST dummy_rdc; + int i; + int seg_skip = 0; + + const int idx_str = cm->mi_stride * mi_row + mi_col; + MODE_INFO **mi = cm->mi_grid_visible + idx_str; + + 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; + } + } + + vp9_zero(x->pred_mv); + 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 = vp9_get_segment_id(cm, map, BLOCK_64X64, mi_row, mi_col); + seg_skip = vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP); + } + + x->source_variance = UINT_MAX; + 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 (cpi->partition_search_skippable_frame) { + BLOCK_SIZE bsize; + set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64); + bsize = get_rd_var_based_fixed_partition(cpi, x, mi_row, mi_col); + 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 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); + } + rd_pick_partition(cpi, td, tile_data, tp, mi_row, mi_col, BLOCK_64X64, + &dummy_rdc, INT64_MAX, td->pc_root); + } + } +} + +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 (vp9_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]->mbmi.tx_size > max_tx_size) + mi_ptr[mi_col]->mbmi.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 && + cpi->sf.partition_search_type == VAR_BASED_PARTITION) + 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 (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 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; + MB_MODE_INFO *mbmi; + set_offsets(cpi, tile_info, x, mi_row, mi_col, bsize); + mbmi = &xd->mi[0]->mbmi; + mbmi->sb_type = bsize; + + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled) + if (cyclic_refresh_segment_id_boosted(mbmi->segment_id)) + x->rdmult = vp9_cyclic_refresh_get_rdmult(cpi->cyclic_refresh); + + if (cm->frame_type == KEY_FRAME) + hybrid_intra_mode_search(cpi, x, rd_cost, bsize, ctx); + else if (vp9_segfeature_active(&cm->seg, mbmi->segment_id, SEG_LVL_SKIP)) + set_mode_info_seg_skip(x, cm->tx_mode, rd_cost, bsize); + 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, tile_data, mi_row, mi_col, + rd_cost, bsize, ctx); + + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize); + + 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, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->none.mic; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, bsize); + break; + case PARTITION_VERT: + set_mode_info_offsets(cm, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->vertical[0].mic; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, subsize); + + if (mi_col + hbs < cm->mi_cols) { + set_mode_info_offsets(cm, xd, mi_row, mi_col + hbs); + *(xd->mi[0]) = pc_tree->vertical[1].mic; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col + hbs, subsize); + } + break; + case PARTITION_HORZ: + set_mode_info_offsets(cm, xd, mi_row, mi_col); + *(xd->mi[0]) = pc_tree->horizontal[0].mic; + duplicate_mode_info_in_sb(cm, xd, mi_row, mi_col, subsize); + if (mi_row + hbs < cm->mi_rows) { + set_mode_info_offsets(cm, xd, mi_row + hbs, mi_col); + *(xd->mi[0]) = pc_tree->horizontal[1].mic; + 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); + } +} + +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; + (void) *tp_orig; + + 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; + } + + 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.mbmi = xd->mi[0]->mbmi; + ctx->skip_txfm[0] = x->skip_txfm[0]; + ctx->skip = x->skip; + + if (this_rdc.rate != INT_MAX) { + 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) { + int64_t dist_breakout_thr = sf->partition_search_breakout_dist_thr; + int64_t rate_breakout_thr = sf->partition_search_breakout_rate_thr; + + dist_breakout_thr >>= 8 - (b_width_log2_lookup[bsize] + + b_height_log2_lookup[bsize]); + + rate_breakout_thr *= num_pels_log2_lookup[bsize]; + + best_rdc = this_rdc; + if (bsize >= BLOCK_8X8) + pc_tree->partitioning = PARTITION_NONE; + + 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); + if (sf->adaptive_motion_search) + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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); + if (sf->adaptive_motion_search) + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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; + + vp9_rd_cost_reset(&this_rdc); + if (mi_row >= cm->mi_rows || mi_col >= cm->mi_cols) + return; + + subsize = (bsize >= BLOCK_8X8) ? mi[0]->mbmi.sb_type : BLOCK_4X4; + partition = partition_lookup[bsl][subsize]; + + if (bsize == BLOCK_32X32 && partition != PARTITION_NONE && + subsize >= BLOCK_16X16) { + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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; + case 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; + default: + assert(0 && "Invalid partition type."); + 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]->mbmi.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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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.mbmi = xd->mi[0]->mbmi; + 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; + case 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; + default: + assert(0 && "Invalid partition type."); + break; + } + + if (partition != PARTITION_SPLIT || bsize == BLOCK_8X8) + update_partition_context(xd, mi_row, mi_col, subsize, bsize); +} + +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; + int mi_col; + + // 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 = tile_info->mi_col_start; mi_col < tile_info->mi_col_end; + mi_col += MI_BLOCK_SIZE) { + 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; + x->source_variance = UINT_MAX; + vp9_zero(x->pred_mv); + vp9_rd_cost_init(&dummy_rdc); + x->color_sensitivity[0] = 0; + x->color_sensitivity[1] = 0; + + if (seg->enabled) { + const uint8_t *const map = seg->update_map ? cpi->segmentation_map + : cm->last_frame_seg_map; + int segment_id = vp9_get_segment_id(cm, map, BLOCK_64X64, mi_row, mi_col); + seg_skip = vp9_segfeature_active(seg, segment_id, SEG_LVL_SKIP); + 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 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; + case REFERENCE_PARTITION: + set_offsets(cpi, tile_info, x, mi_row, mi_col, BLOCK_64X64); + if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && cm->seg.enabled && + xd->mi[0]->mbmi.segment_id) { + 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); + nonrd_select_partition(cpi, td, tile_data, mi, tp, mi_row, mi_col, + BLOCK_64X64, 1, &dummy_rdc, td->pc_root); + } + + break; + default: + assert(0); + break; + } + } +} +// end RTC play code + +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 = (MIN(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); + break; + case VPX_BITS_10: + vpx_highbd_10_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + break; + case VPX_BITS_12: + vpx_highbd_12_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + break; + default: + assert(0 && "cm->bit_depth should be VPX_BITS_8, VPX_BITS_10" + " or VPX_BITS_12"); + return -1; + } + } else { + vpx_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); + } +#else + vpx_get16x16var(src, src_stride, last_src, last_stride, + &var16->sse, &var16->sum); +#endif // CONFIG_VP9_HIGHBITDEPTH + var16->var = var16->sse - + (((uint32_t)var16->sum * var16->sum) >> 8); + + 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, cpi->source_diff_var, + vpx_calloc(cm->MBs, sizeof(diff))); + } + + 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]; + int tile_tok = 0; + + if (cpi->tile_data == NULL) { + CHECK_MEM_ERROR(cm, cpi->tile_data, + vpx_malloc(tile_cols * tile_rows * sizeof(*cpi->tile_data))); + 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; + for (i = 0; i < BLOCK_SIZES; ++i) { + for (j = 0; j < MAX_MODES; ++j) { + tile_data->thresh_freq_fact[i][j] = 32; + tile_data->mode_map[i][j] = j; + } + } + } + } + + for (tile_row = 0; tile_row < tile_rows; ++tile_row) { + for (tile_col = 0; tile_col < tile_cols; ++tile_col) { + TileInfo *tile_info = + &cpi->tile_data[tile_row * tile_cols + tile_col].tile_info; + 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); + } + } +} + +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; + TOKENEXTRA *tok = cpi->tile_tok[tile_row][tile_col]; + int mi_row; + + for (mi_row = tile_info->mi_row_start; mi_row < tile_info->mi_row_end; + mi_row += MI_BLOCK_SIZE) { + 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); + } + cpi->tok_count[tile_row][tile_col] = + (unsigned int)(tok - cpi->tile_tok[tile_row][tile_col]); + assert(tok - cpi->tile_tok[tile_row][tile_col] <= + allocated_tokens(*tile_info)); +} + +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); +} + +#if CONFIG_FP_MB_STATS +static int input_fpmb_stats(FIRSTPASS_MB_STATS *firstpass_mb_stats, + VP9_COMMON *cm, uint8_t **this_frame_mb_stats) { + uint8_t *mb_stats_in = firstpass_mb_stats->mb_stats_start + + cm->current_video_frame * cm->MBs * sizeof(uint8_t); + + if (mb_stats_in > firstpass_mb_stats->mb_stats_end) + return EOF; + + *this_frame_mb_stats = mb_stats_in; + + return 1; +} +#endif + +static void encode_frame_internal(VP9_COMP *cpi) { + SPEED_FEATURES *const sf = &cpi->sf; + RD_OPT *const rd_opt = &cpi->rd; + ThreadData *const td = &cpi->td; + MACROBLOCK *const x = &td->mb; + VP9_COMMON *const cm = &cpi->common; + MACROBLOCKD *const xd = &x->e_mbd; + RD_COUNTS *const rdc = &cpi->td.rd_counts; + + xd->mi = cm->mi_grid_visible; + xd->mi[0] = cm->mi; + + vp9_zero(*td->counts); + vp9_zero(rdc->coef_counts); + vp9_zero(rdc->comp_pred_diff); + vp9_zero(rdc->filter_diff); + vp9_zero(rdc->tx_select_diff); + vp9_zero(rd_opt->tx_select_threshes); + + 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_txm4x4 = xd->lossless ? vp9_highbd_fwht4x4 : vp9_highbd_fdct4x4; + else + x->fwd_txm4x4 = xd->lossless ? vp9_fwht4x4 : vp9_fdct4x4; + x->highbd_itxm_add = xd->lossless ? vp9_highbd_iwht4x4_add : + vp9_highbd_idct4x4_add; +#else + x->fwd_txm4x4 = xd->lossless ? vp9_fwht4x4 : vp9_fdct4x4; +#endif // CONFIG_VP9_HIGHBITDEPTH + x->itxm_add = xd->lossless ? vp9_iwht4x4_add : vp9_idct4x4_add; + + if (xd->lossless) + x->optimize = 0; + + 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->ref_frame_flags &= (~VP9_GOLD_FLAG); + + if (sf->partition_search_type == SOURCE_VAR_BASED_PARTITION) + source_var_based_partition_search_method(cpi); + } + + { + struct vpx_usec_timer emr_timer; + vpx_usec_timer_start(&emr_timer); + +#if CONFIG_FP_MB_STATS + if (cpi->use_fp_mb_stats) { + input_fpmb_stats(&cpi->twopass.firstpass_mb_stats, cm, + &cpi->twopass.this_frame_mb_stats); + } +#endif + + // If allowed, encoding tiles in parallel with one thread handling one tile. + if (MIN(cpi->oxcf.max_threads, 1 << cm->log2_tile_cols) > 1) + vp9_encode_tiles_mt(cpi); + else + encode_tiles(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; + } +} + +void vp9_encode_frame(VP9_COMP *cpi) { + VP9_COMMON *const cm = &cpi->common; + + // 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 ((cm->ref_frame_sign_bias[ALTREF_FRAME] == + cm->ref_frame_sign_bias[GOLDEN_FRAME]) || + (cm->ref_frame_sign_bias[ALTREF_FRAME] == + cm->ref_frame_sign_bias[LAST_FRAME])) { + cpi->allow_comp_inter_inter = 0; + } else { + cpi->allow_comp_inter_inter = 1; + cm->comp_fixed_ref = ALTREF_FRAME; + cm->comp_var_ref[0] = LAST_FRAME; + cm->comp_var_ref[1] = GOLDEN_FRAME; + } + } + + 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 that this coding mode. If that is the case, it remembers + // that for subsequent frames. + // It does the same analysis for transform size selection also. + 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]; + int *const tx_thrs = rd_opt->tx_select_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); + + encode_frame_internal(cpi); + + 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; + + for (i = 0; i < TX_MODES; ++i) { + int64_t pd = rdc->tx_select_diff[i]; + if (i == TX_MODE_SELECT) + pd -= RDCOST(cpi->td.mb.rdmult, cpi->td.mb.rddiv, 2048 * (TX_SIZES - 1), + 0); + tx_thrs[i] = (tx_thrs[i] + (int)(pd / 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 { + cm->reference_mode = SINGLE_REFERENCE; + encode_frame_internal(cpi); + } +} + +static void sum_intra_stats(FRAME_COUNTS *counts, const MODE_INFO *mi) { + const PREDICTION_MODE y_mode = mi->mbmi.mode; + const PREDICTION_MODE uv_mode = mi->mbmi.uv_mode; + const BLOCK_SIZE bsize = mi->mbmi.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 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_8x8 = xd->mi; + MODE_INFO *mi = mi_8x8[0]; + MB_MODE_INFO *mbmi = &mi->mbmi; + const int seg_skip = vp9_segfeature_active(&cm->seg, mbmi->segment_id, + SEG_LVL_SKIP); + 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]; + + x->skip_recode = !x->select_tx_size && mbmi->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; + + set_ref_ptrs(cm, xd, mbmi->ref_frame[0], mbmi->ref_frame[1]); + + if (!is_inter_block(mbmi)) { + int plane; + mbmi->skip = 1; + for (plane = 0; plane < MAX_MB_PLANE; ++plane) + vp9_encode_intra_block_plane(x, MAX(bsize, BLOCK_8X8), plane); + if (output_enabled) + sum_intra_stats(td->counts, mi); + vp9_tokenize_sb(cpi, td, t, !output_enabled, MAX(bsize, BLOCK_8X8)); + } else { + int ref; + const int is_compound = has_second_ref(mbmi); + for (ref = 0; ref < 1 + is_compound; ++ref) { + YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, + mbmi->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, MAX(bsize, BLOCK_8X8)); + + vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, MAX(bsize, BLOCK_8X8)); + + vp9_encode_sb(x, MAX(bsize, BLOCK_8X8)); + vp9_tokenize_sb(cpi, td, t, !output_enabled, MAX(bsize, BLOCK_8X8)); + } + + if (output_enabled) { + if (cm->tx_mode == TX_MODE_SELECT && + mbmi->sb_type >= BLOCK_8X8 && + !(is_inter_block(mbmi) && (mbmi->skip || seg_skip))) { + ++get_tx_counts(max_txsize_lookup[bsize], vp9_get_tx_size_context(xd), + &td->counts->tx)[mbmi->tx_size]; + } else { + int x, y; + TX_SIZE tx_size; + // The new intra coding scheme requires no change of transform size + if (is_inter_block(&mi->mbmi)) { + tx_size = MIN(tx_mode_to_biggest_tx_size[cm->tx_mode], + max_txsize_lookup[bsize]); + } else { + tx_size = (bsize >= BLOCK_8X8) ? mbmi->tx_size : TX_4X4; + } + + for (y = 0; y < mi_height; y++) + for (x = 0; x < mi_width; x++) + if (mi_col + x < cm->mi_cols && mi_row + y < cm->mi_rows) + mi_8x8[mis * y + x]->mbmi.tx_size = tx_size; + } + ++td->counts->tx.tx_totals[mbmi->tx_size]; + ++td->counts->tx.tx_totals[get_uv_tx_size(mbmi, &xd->plane[1])]; + } +} |