/root/firefox-clang/third_party/aom/av1/encoder/partition

Bug Summary

File:	root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c
Warning:	line 2377, column 3 Null pointer passed to 1st parameter expecting 'nonnull'
Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name partition_strategy.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -ffp-contract=off -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/media/libaom -fcoverage-compilation-dir=/root/firefox-clang/obj-x86_64-pc-linux-gnu/media/libaom -resource-dir /usr/lib/llvm-21/lib/clang/21 -include /root/firefox-clang/obj-x86_64-pc-linux-gnu/mozilla-config.h -U _FORTIFY_SOURCE -D _FORTIFY_SOURCE=2 -D _GLIBCXX_ASSERTIONS -D DEBUG=1 -D MOZ_HAS_MOZGLUE -I /root/firefox-clang/media/libaom -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/media/libaom -I /root/firefox-clang/media/libaom/config/linux/x64 -I /root/firefox-clang/media/libaom/config -I /root/firefox-clang/third_party/aom -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nspr -I /root/firefox-clang/obj-x86_64-pc-linux-gnu/dist/include/nss -D MOZILLA_CLIENT -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-error=tautological-type-limit-compare -Wno-range-loop-analysis -Wno-error=deprecated-declarations -Wno-error=array-bounds -Wno-error=free-nonheap-object -Wno-error=atomic-alignment -Wno-error=deprecated-builtins -Wno-psabi -Wno-error=builtin-macro-redefined -Wno-unknown-warning-option -Wno-sign-compare -Wno-unused-function -Wno-unreachable-code -Wno-unneeded-internal-declaration -ferror-limit 19 -fstrict-flex-arrays=1 -stack-protector 2 -fstack-clash-protection -ftrivial-auto-var-init=pattern -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -vectorize-loops -vectorize-slp -analyzer-checker optin.performance.Padding -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2025-06-27-100320-3286336-1 -x c /root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c
1/*
* Copyright (c) 2019, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/

12#include <float.h>

14#include "config/aom_config.h"

16#include "av1/encoder/encodeframe_utils.h"
17#if CONFIG_THREE_PASS0
18#include "av1/encoder/thirdpass.h"
19#endif
20#include "config/aom_dsp_rtcd.h"

22#include "av1/common/enums.h"
23#include "av1/common/reconinter.h"

25#if !CONFIG_REALTIME_ONLY0
26#include "av1/encoder/cnn.h"
27#include "av1/encoder/partition_model_weights.h"
28#include "av1/encoder/partition_cnn_weights.h"
29#endif
30#include "av1/encoder/encoder.h"

32#include "av1/encoder/motion_search_facade.h"
33#include "av1/encoder/partition_strategy.h"
34#include "av1/encoder/partition_search.h"
35#include "av1/encoder/rdopt.h"

37#if !CONFIG_REALTIME_ONLY0
38static inline void simple_motion_search_prune_part_features(
  AV1_COMP *const cpi, MACROBLOCK *x, SIMPLE_MOTION_DATA_TREE *sms_tree,
  int mi_row, int mi_col, BLOCK_SIZE bsize, float *features,
  int features_to_get);

43static bool_Bool ext_ml_model_decision_before_none(
  AV1_COMP *cpi, const float features_from_motion[FEATURE_SIZE_SMS_SPLIT17],
  int *partition_none_allowed, int *partition_horz_allowed,
  int *partition_vert_allowed, int *do_rectangular_split,
  int *do_square_split);

49static bool_Bool ext_ml_model_decision_before_none_part2(
  AV1_COMP *cpi,
  const float features_from_motion[FEATURE_SIZE_SMS_PRUNE_PART25],
  int *prune_horz, int *prune_vert);

54static bool_Bool ext_ml_model_decision_after_none(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_after_none, int *do_square_split,
  int *do_rectangular_split);

59static bool_Bool ext_ml_model_decision_after_none_part2(
  AV1_COMP *const cpi, const float *const features_terminate,
  int *terminate_partition_search);

63static bool_Bool ext_ml_model_decision_after_split(
  AV1_COMP *const cpi, const float *const features_terminate,
  int *terminate_partition_search);

67static bool_Bool ext_ml_model_decision_after_split_part2(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_prune, int *prune_rect_part_horz,
  int *prune_rect_part_vert);

72static bool_Bool ext_ml_model_decision_after_rect(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_after_rect, int *horza_partition_allowed,
  int *horzb_partition_allowed, int *verta_partition_allowed,
  int *vertb_partition_allowed);

78static bool_Bool ext_ml_model_decision_after_part_ab(
  AV1_COMP *const cpi, MACROBLOCK *const x, BLOCK_SIZE bsize, int part_ctx,
  int64_t best_rd, int64_t rect_part_rd[NUM_RECT_PARTS][SUB_PARTITIONS_RECT2],
  int64_t split_rd[SUB_PARTITIONS_SPLIT4], int *const partition_horz4_allowed,
  int *const partition_vert4_allowed, unsigned int pb_source_variance,
  int mi_row, int mi_col);

85static inline int convert_bsize_to_idx(BLOCK_SIZE bsize) {
switch (bsize) {
  case BLOCK_128X128: return 0;
  case BLOCK_64X64: return 1;
  case BLOCK_32X32: return 2;
  case BLOCK_16X16: return 3;
  case BLOCK_8X8: return 4;
  default: assert(0 && "Invalid bsize")((void) sizeof ((0 && "Invalid bsize") ? 1 : 0), __extension__
 ({ if (0 && "Invalid bsize") ; else __assert_fail ("0 && \"Invalid bsize\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 92, __extension__ __PRETTY_FUNCTION__); })); return -1;
}
94}

96static char *get_feature_file_name(int id) {
static char *feature_file_names[] = {
  "feature_before_partition_none",
  "feature_before_partition_none_prune_rect",
  "feature_after_partition_none_prune",
  "feature_after_partition_none_terminate",
  "feature_after_partition_split_terminate",
  "feature_after_partition_split_prune_rect",
  "feature_after_partition_rect",
  "feature_after_partition_ab",
};

return feature_file_names[id];
109}

111static void write_features_to_file(const char *const path,
                                 const bool_Bool is_test_mode,
                                 const float *features,
                                 const int feature_size, const int id,
                                 const BLOCK_SIZE bsize, const int mi_row,
                                 const int mi_col) {
if (!WRITE_FEATURE_TO_FILE0 && !is_test_mode) return;

char filename[256];
snprintf(filename, sizeof(filename), "%s/%s", path,
         get_feature_file_name(id));
FILE *pfile = fopen(filename, "a");
if (pfile == NULL((void*)0)) return;
if (!is_test_mode) {
  fprintf(pfile, "%d,%d,%d,%d,%d\n", id, (int)bsize, mi_row, mi_col,
          feature_size);
}
for (int i = 0; i < feature_size; ++i) {
  fprintf(pfile, "%.6f", features[i]);
  if (i < feature_size - 1) fprintf(pfile, ",");
}
fprintf(pfile, "\n");
fclose(pfile);
134}

136// TODO(chiyotsai@google.com): This is very much a work in progress. We still
137// need to the following:
138//   -- add support for hdres
139//   -- add support for pruning rectangular partitions
140//   -- use reconstructed pixels instead of source pixels for padding
141//   -- use chroma pixels in addition to luma pixels
142static void intra_mode_cnn_partition(const AV1_COMMON *const cm, MACROBLOCK *x,
                                   int quad_tree_idx,
                                   int intra_cnn_based_part_prune_level,
                                   PartitionSearchState *part_state) {
assert(cm->seq_params->sb_size >= BLOCK_64X64 &&((void) sizeof ((cm->seq_params->sb_size >= BLOCK_64X64
 && "Invalid sb_size for intra_cnn!") ? 1 : 0), __extension__
 ({ if (cm->seq_params->sb_size >= BLOCK_64X64 &&
 "Invalid sb_size for intra_cnn!") ; else __assert_fail ("cm->seq_params->sb_size >= BLOCK_64X64 && \"Invalid sb_size for intra_cnn!\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 147, __extension__ __PRETTY_FUNCTION__); }))
       "Invalid sb_size for intra_cnn!")((void) sizeof ((cm->seq_params->sb_size >= BLOCK_64X64
 && "Invalid sb_size for intra_cnn!") ? 1 : 0), __extension__
 ({ if (cm->seq_params->sb_size >= BLOCK_64X64 &&
 "Invalid sb_size for intra_cnn!") ; else __assert_fail ("cm->seq_params->sb_size >= BLOCK_64X64 && \"Invalid sb_size for intra_cnn!\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 147, __extension__ __PRETTY_FUNCTION__); }));
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const BLOCK_SIZE bsize = blk_params->bsize;

const int bsize_idx = convert_bsize_to_idx(bsize);

if (bsize == BLOCK_128X128) {
  return;
}

PartitionSearchInfo *part_info = &x->part_search_info;

// Precompute the CNN part and cache the result in MACROBLOCK
if (bsize == BLOCK_64X64 && !part_info->cnn_output_valid) {
  const CNN_CONFIG *cnn_config = &av1_intra_mode_cnn_partition_cnn_config;

  // Prepare the output
  const CNN_THREAD_DATA thread_data = { .num_workers = 1, .workers = NULL((void*)0) };
  const int num_outputs = 4;
  const int output_dims[4] = { 1, 2, 4, 8 };
  const int out_chs[4] = { CNN_BRANCH_0_OUT_CH20, CNN_BRANCH_1_OUT_CH4,
                           CNN_BRANCH_2_OUT_CH20, CNN_BRANCH_3_OUT_CH20 };
  float *output_buffer[CNN_TOT_OUT_CH(((20) + (4) + (20) + (20)))];

  float **cur_output_buf = output_buffer;
  float *curr_buf_ptr = part_info->cnn_buffer;
  for (int output_idx = 0; output_idx < num_outputs; output_idx++) {
    const int num_chs = out_chs[output_idx];
    const int ch_size = output_dims[output_idx] * output_dims[output_idx];
    for (int ch = 0; ch < num_chs; ch++) {
      cur_output_buf[ch] = curr_buf_ptr;
      curr_buf_ptr += ch_size;
    }
    cur_output_buf += num_chs;
  }

  CNN_MULTI_OUT output = {
    .num_outputs = 4,
    .output_channels = out_chs,
    .output_strides = output_dims,
    .output_buffer = output_buffer,
  };

  // Prepare the input
  const MACROBLOCKD *xd = &x->e_mbd;
  const int bit_depth = xd->bd;
  const int dc_q =
      av1_dc_quant_QTX(x->qindex, 0, bit_depth) >> (bit_depth - 8);
  part_info->log_q = log1pf((float)(dc_q * dc_q) / 256.0f);
  part_info->log_q =
      (part_info->log_q - av1_intra_mode_cnn_partition_mean[0]) /
      av1_intra_mode_cnn_partition_std[0];

  const int width = 65, height = 65,
            stride = x->plane[AOM_PLANE_Y0].src.stride;

  if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH8) {
    uint16_t *image[1] = {
      CONVERT_TO_SHORTPTR(x->plane[AOM_PLANE_Y].src.buf)((uint16_t *)(((uintptr_t)(x->plane[0].src.buf)) << 1
)) - stride - 1
    };

    if (!av1_cnn_predict_img_multi_out_highbd(image, width, height, stride,
                                              cnn_config, &thread_data,
                                              bit_depth, &output)) {
      aom_internal_error(xd->error_info, AOM_CODEC_MEM_ERROR,
                         "Error allocating CNN data");
      return;
    }
  } else {
    uint8_t *image[1] = { x->plane[AOM_PLANE_Y0].src.buf - stride - 1 };

    if (!av1_cnn_predict_img_multi_out(image, width, height, stride,
                                       cnn_config, &thread_data, &output)) {
      aom_internal_error(xd->error_info, AOM_CODEC_MEM_ERROR,
                         "Error allocating CNN data");
      return;
    }
  }

  part_info->cnn_output_valid = 1;
}

if (!part_info->cnn_output_valid) {
  return;
}

const NN_CONFIG *dnn_configs[5] = {
  NULL((void*)0),
  &av1_intra_mode_cnn_partition_branch_0_dnn_config,
  &av1_intra_mode_cnn_partition_branch_1_dnn_config,
  &av1_intra_mode_cnn_partition_branch_2_dnn_config,
  &av1_intra_mode_cnn_partition_branch_3_dnn_config,
};

const NN_CONFIG *dnn_config = dnn_configs[bsize_idx];

float dnn_features[100];
float logits[4] = { 0.0f };

const float *branch_0 = part_info->cnn_buffer;
const float *branch_1 = branch_0 + CNN_BRANCH_0_OUT_SIZE(20);
const float *branch_2 = branch_1 + CNN_BRANCH_1_OUT_SIZE((4)*2 * 2);
const float *branch_3 = branch_2 + CNN_BRANCH_2_OUT_SIZE((20)*4 * 4);

if (bsize == BLOCK_64X64) {
  int f_idx = 0;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_0_OUT_CH20; ch_idx++) {
    dnn_features[f_idx++] = branch_0[ch_idx];
  }

  const int spa_stride = 2 * 2;
  for (int lin_idx = 0; lin_idx < spa_stride; lin_idx++) {
    for (int ch_idx = 0; ch_idx < CNN_BRANCH_1_OUT_CH4; ch_idx++) {
      dnn_features[f_idx++] = branch_1[lin_idx + ch_idx * spa_stride];
    }
  }
  dnn_features[f_idx++] = part_info->log_q;
} else if (bsize == BLOCK_32X32) {
  int f_idx = 0;
  for (int idx = 0; idx < CNN_BRANCH_0_OUT_CH20; idx++) {
    dnn_features[f_idx++] = branch_0[idx];
  }

  const int curr_lin_idx = quad_to_linear_1[quad_tree_idx - 1];
  const int spa_stride = 2 * 2;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_1_OUT_CH4; ch_idx++) {
    dnn_features[f_idx++] = branch_1[curr_lin_idx + ch_idx * spa_stride];
  }
  dnn_features[f_idx++] = part_info->log_q;
} else if (bsize == BLOCK_16X16) {
  int f_idx = 0;
  const int prev_quad_idx = (quad_tree_idx - 1) / 4;
  const int prev_lin_idx = quad_to_linear_1[prev_quad_idx - 1];
  const int prev_spa_stride = 2 * 2;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_1_OUT_CH4; ch_idx++) {
    dnn_features[f_idx++] = branch_1[prev_lin_idx + ch_idx * prev_spa_stride];
  }

  const int curr_lin_idx = quad_to_linear_2[quad_tree_idx - 5];
  const int spa_stride = 4 * 4;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_2_OUT_CH20; ch_idx++) {
    dnn_features[f_idx++] = branch_2[curr_lin_idx + ch_idx * spa_stride];
  }
  dnn_features[f_idx++] = part_info->log_q;
} else if (bsize == BLOCK_8X8) {
  int f_idx = 0;
  const int prev_quad_idx = (quad_tree_idx - 1) / 4;
  const int prev_lin_idx = quad_to_linear_2[prev_quad_idx - 5];
  const int prev_spa_stride = 4 * 4;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_2_OUT_CH20; ch_idx++) {
    dnn_features[f_idx++] = branch_2[prev_lin_idx + ch_idx * prev_spa_stride];
  }

  const int curr_lin_idx = quad_to_linear_3[quad_tree_idx - 21];
  const int spa_stride = 8 * 8;
  for (int ch_idx = 0; ch_idx < CNN_BRANCH_3_OUT_CH20; ch_idx++) {
    dnn_features[f_idx++] = branch_3[curr_lin_idx + ch_idx * spa_stride];
  }
  dnn_features[f_idx++] = part_info->log_q;
} else {
  assert(0 && "Invalid bsize in intra_cnn partition")((void) sizeof ((0 && "Invalid bsize in intra_cnn partition"
) ? 1 : 0), __extension__ ({ if (0 && "Invalid bsize in intra_cnn partition"
) ; else __assert_fail ("0 && \"Invalid bsize in intra_cnn partition\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 307, __extension__ __PRETTY_FUNCTION__); }));
}

// Make decision
av1_nn_predict(dnn_features, dnn_config, 1, logits);

const int is_720p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 720;
const int is_480p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 480;
float split_only_thresh = 100.0f, no_split_thresh = -100.0f;
if (is_720p_or_larger) {
  split_only_thresh =
      av1_intra_mode_cnn_partition_split_thresh_hdres[bsize_idx];
  no_split_thresh =
      av1_intra_mode_cnn_partition_no_split_thresh_hdres[bsize_idx];
} else if (is_480p_or_larger) {
  split_only_thresh =
      av1_intra_mode_cnn_partition_split_thresh_midres[bsize_idx];
  no_split_thresh =
      av1_intra_mode_cnn_partition_no_split_thresh_midres[bsize_idx];
} else {
  split_only_thresh =
      av1_intra_mode_cnn_partition_split_thresh_lowres[bsize_idx];
  no_split_thresh =
      av1_intra_mode_cnn_partition_no_split_thresh_lowres[bsize_idx];
}

if (logits[0] > split_only_thresh) {
  // As screen contents tend to choose larger partitions, do not prune
  // PARTITION_NONE when intra_cnn_based_part_prune_level=1.
  if (intra_cnn_based_part_prune_level != 1) {
    part_state->partition_none_allowed = 0;
  }
  part_state->do_square_split = 1;
  av1_disable_rect_partitions(part_state);
}

if (logits[0] < no_split_thresh) {
  av1_disable_square_split_partition(part_state);
}
346}

348static inline int get_simple_motion_search_prune_agg(int qindex,
                                                   int prune_level,
                                                   int is_rect_part) {
assert(prune_level < TOTAL_AGG_LVLS)((void) sizeof ((prune_level < TOTAL_AGG_LVLS) ? 1 : 0), __extension__
 ({ if (prune_level < TOTAL_AGG_LVLS) ; else __assert_fail
 ("prune_level < TOTAL_AGG_LVLS", "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 351, __extension__ __PRETTY_FUNCTION__); }));
if (prune_level == NO_PRUNING) {
  return -1;
}

// Aggressiveness value for SIMPLE_MOTION_SEARCH_PRUNE_LEVEL except
// QIDX_BASED_AGG_LVL
const int sms_prune_agg_levels[TOTAL_SIMPLE_AGG_LVLS] = { 0, 1, 2, 3 };
if (prune_level < TOTAL_SIMPLE_AGG_LVLS) {
  return sms_prune_agg_levels[prune_level];
}

// Map the QIDX_BASED_AGG_LVL to corresponding aggressiveness value.
// Aggressive pruning for lower quantizers in non-boosted frames to prune
// rectangular partitions.
const int qband = is_rect_part ? (qindex <= 90 ? 1 : 0) : 0;
const int sms_prune_agg_qindex_based[2] = { 1, 2 };
return sms_prune_agg_qindex_based[qband];
369}

371// Performs a simple_motion_search with a single reference frame and extract
372// the variance of residues. Then use the features to determine whether we want
373// to go straight to splitting without trying PARTITION_NONE
374static void simple_motion_search_based_split(AV1_COMP *const cpi, MACROBLOCK *x,
                                           SIMPLE_MOTION_DATA_TREE *sms_tree,
                                           PartitionSearchState *part_state) {
const AV1_COMMON *const cm = &cpi->common;
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

const int bsize_idx = convert_bsize_to_idx(bsize);
const int is_720p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 720;
const int is_480p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 480;
// res_idx is 0 for res < 480p, 1 for 480p, 2 for 720p+
const int res_idx = is_480p_or_larger + is_720p_or_larger;

assert(bsize_idx >= 0 && bsize_idx <= 4 &&((void) sizeof ((bsize_idx >= 0 && bsize_idx <=
&& "Invalid bsize in simple_motion_search_based_split"
) ? 1 : 0), __extension__ ({ if (bsize_idx >= 0 &&
 bsize_idx <= 4 && "Invalid bsize in simple_motion_search_based_split"
) ; else __assert_fail ("bsize_idx >= 0 && bsize_idx <= 4 && \"Invalid bsize in simple_motion_search_based_split\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 389, __extension__ __PRETTY_FUNCTION__); }))
       "Invalid bsize in simple_motion_search_based_split")((void) sizeof ((bsize_idx >= 0 && bsize_idx <=
&& "Invalid bsize in simple_motion_search_based_split"
) ? 1 : 0), __extension__ ({ if (bsize_idx >= 0 &&
 bsize_idx <= 4 && "Invalid bsize in simple_motion_search_based_split"
) ; else __assert_fail ("bsize_idx >= 0 && bsize_idx <= 4 && \"Invalid bsize in simple_motion_search_based_split\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 389, __extension__ __PRETTY_FUNCTION__); }));

const float *ml_mean = av1_simple_motion_search_split_mean[bsize_idx];
const float *ml_std = av1_simple_motion_search_split_std[bsize_idx];
const NN_CONFIG *nn_config =
    av1_simple_motion_search_split_nn_config[bsize_idx];

const int agg = get_simple_motion_search_prune_agg(
    x->qindex, cpi->sf.part_sf.simple_motion_search_prune_agg, 0);
if (agg < 0) {
  return;
}

const float split_only_thresh =
    av1_simple_motion_search_split_thresh[agg][res_idx][bsize_idx];
const float no_split_thresh =
    av1_simple_motion_search_no_split_thresh[agg][res_idx][bsize_idx];

float features[FEATURE_SIZE_SMS_SPLIT17] = { 0.0f };
simple_motion_search_prune_part_features(cpi, x, sms_tree, mi_row, mi_col,
                                         bsize, features,
                                         FEATURE_SMS_SPLIT_MODEL_FLAG(1 | (1 << 1)));

// Write features to file
write_features_to_file(cpi->oxcf.partition_info_path,
                       cpi->ext_part_controller.test_mode, features,
                       FEATURE_SIZE_SMS_SPLIT17, 0, bsize, mi_row, mi_col);

// Note: it is intended to not normalize the features here, to keep it
// consistent for all features collected and passed to the external model.
if (ext_ml_model_decision_before_none(
        cpi, features, &part_state->partition_none_allowed,
        &part_state->partition_rect_allowed[HORZ],
        &part_state->partition_rect_allowed[VERT],
        &part_state->do_rectangular_split, &part_state->do_square_split)) {
  return;
}

for (int idx = 0; idx < FEATURE_SIZE_SMS_SPLIT17; idx++) {
  features[idx] = (features[idx] - ml_mean[idx]) / ml_std[idx];
}

float score = 0.0f;

av1_nn_predict(features, nn_config, 1, &score);

if (score > split_only_thresh) {
  av1_set_square_split_only(part_state);
}

if (cpi->sf.part_sf.simple_motion_search_split >= 2 &&
    score < no_split_thresh) {
  av1_disable_square_split_partition(part_state);
}

// If the score is very low, prune rectangular split since it is unlikely to
// occur.
if (cpi->sf.part_sf.simple_motion_search_rect_split) {
  const float scale = res_idx >= 2 ? 3.0f : 2.0f;
  const float rect_split_thresh =
      scale * av1_simple_motion_search_no_split_thresh
                  [cpi->sf.part_sf.simple_motion_search_rect_split][res_idx]
                  [bsize_idx];
  if (score < rect_split_thresh) {
    part_state->do_rectangular_split = 0;
  }
}
456}

458// Given a list of ref frames in refs, performs simple_motion_search on each of
459// the refs and returns the ref with the smallest sse. Returns -1 if none of the
460// ref in the list is available. Also stores the best sse and var in best_sse,
461// best_var, respectively. If save_mv is 0, don't update mv_ref_fulls in
462// sms_tree. If save_mv is 1, update mv_ref_fulls under sms_tree and the
463// subtrees.
464static int simple_motion_search_get_best_ref(
  AV1_COMP *const cpi, MACROBLOCK *x, SIMPLE_MOTION_DATA_TREE *sms_tree,
  int mi_row, int mi_col, BLOCK_SIZE bsize, const int *const refs,
  int num_refs, int use_subpixel, int save_mv, unsigned int *best_sse,
  unsigned int *best_var) {
const AV1_COMMON *const cm = &cpi->common;
int best_ref = -1;

if (mi_col >= cm->mi_params.mi_cols || mi_row >= cm->mi_params.mi_rows) {
  // If the whole block is outside of the image, set the var and sse to 0.
  *best_var = 0;
  *best_sse = 0;

  return best_ref;
}

// Otherwise do loop through the reference frames and find the one with the
// minimum SSE
const int num_planes = 1;

*best_sse = INT_MAX2147483647;

for (int ref_idx = 0; ref_idx < num_refs; ref_idx++) {
  const int ref = refs[ref_idx];

  if (cpi->ref_frame_flags & av1_ref_frame_flag_list[ref]) {
    const FULLPEL_MV *start_mvs = sms_tree->start_mvs;
    unsigned int curr_sse = 0, curr_var = 0;
    const int_mv best_mv = av1_simple_motion_search_sse_var(
        cpi, x, mi_row, mi_col, bsize, ref, start_mvs[ref], num_planes,
        use_subpixel, &curr_sse, &curr_var);
    if (curr_sse < *best_sse) {
      *best_sse = curr_sse;
      *best_var = curr_var;
      best_ref = ref;
    }

    if (save_mv) {
      sms_tree->start_mvs[ref].row = best_mv.as_mv.row / 8;
      sms_tree->start_mvs[ref].col = best_mv.as_mv.col / 8;

      if (bsize >= BLOCK_8X8) {
        for (int r_idx = 0; r_idx < SUB_PARTITIONS_SPLIT4; r_idx++) {
          // Propagate the new motion vectors to a lower level
          SIMPLE_MOTION_DATA_TREE *sub_tree = sms_tree->split[r_idx];
          sub_tree->start_mvs[ref] = sms_tree->start_mvs[ref];
        }
      }
    }
  }
}

return best_ref;
517}

519// Collects features using simple_motion_search and store them in features. The
520// features are also cached in SIMPLE_MOTION_DATA_TREE. By default, the features
521// collected are the sse and var from the subblocks flagged by features_to_get.
522// Furthermore, if features is not NULL, then 7 more features are appended to
523// the end of features:
524//  - log(1.0 + dc_q ** 2)
525//  - whether an above macroblock exists
526//  - width of above macroblock
527//  - height of above macroblock
528//  - whether a left marcoblock exists
529//  - width of left macroblock
530//  - height of left macroblock
531static inline void simple_motion_search_prune_part_features(
  AV1_COMP *const cpi, MACROBLOCK *x, SIMPLE_MOTION_DATA_TREE *sms_tree,
  int mi_row, int mi_col, BLOCK_SIZE bsize, float *features,
  int features_to_get) {
const int w_mi = mi_size_wide[bsize];
const int h_mi = mi_size_high[bsize];
assert(mi_size_wide[bsize] == mi_size_high[bsize])((void) sizeof ((mi_size_wide[bsize] == mi_size_high[bsize]) ?
: 0), __extension__ ({ if (mi_size_wide[bsize] == mi_size_high
[bsize]) ; else __assert_fail ("mi_size_wide[bsize] == mi_size_high[bsize]"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 537, __extension__ __PRETTY_FUNCTION__); }));
assert(bsize >= BLOCK_8X8)((void) sizeof ((bsize >= BLOCK_8X8) ? 1 : 0), __extension__
 ({ if (bsize >= BLOCK_8X8) ; else __assert_fail ("bsize >= BLOCK_8X8"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 538, __extension__ __PRETTY_FUNCTION__); }));
assert(cpi->ref_frame_flags & av1_ref_frame_flag_list[LAST_FRAME] ||((void) sizeof ((cpi->ref_frame_flags & av1_ref_frame_flag_list
[LAST_FRAME] || cpi->ref_frame_flags & av1_ref_frame_flag_list
[ALTREF_FRAME]) ? 1 : 0), __extension__ ({ if (cpi->ref_frame_flags
 & av1_ref_frame_flag_list[LAST_FRAME] || cpi->ref_frame_flags
 & av1_ref_frame_flag_list[ALTREF_FRAME]) ; else __assert_fail
 ("cpi->ref_frame_flags & av1_ref_frame_flag_list[LAST_FRAME] || cpi->ref_frame_flags & av1_ref_frame_flag_list[ALTREF_FRAME]"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 540, __extension__ __PRETTY_FUNCTION__); }))
       cpi->ref_frame_flags & av1_ref_frame_flag_list[ALTREF_FRAME])((void) sizeof ((cpi->ref_frame_flags & av1_ref_frame_flag_list
[LAST_FRAME] || cpi->ref_frame_flags & av1_ref_frame_flag_list
[ALTREF_FRAME]) ? 1 : 0), __extension__ ({ if (cpi->ref_frame_flags
 & av1_ref_frame_flag_list[LAST_FRAME] || cpi->ref_frame_flags
 & av1_ref_frame_flag_list[ALTREF_FRAME]) ; else __assert_fail
 ("cpi->ref_frame_flags & av1_ref_frame_flag_list[LAST_FRAME] || cpi->ref_frame_flags & av1_ref_frame_flag_list[ALTREF_FRAME]"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 540, __extension__ __PRETTY_FUNCTION__); }));

// Setting up motion search
const int ref_list[] = { cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME
                                                      : LAST_FRAME };
const int num_refs = 1;
const int use_subpixel = 1;

// Doing whole block first to update the mv
if (!sms_tree->sms_none_valid && features_to_get & FEATURE_SMS_NONE_FLAG1) {
  simple_motion_search_get_best_ref(cpi, x, sms_tree, mi_row, mi_col, bsize,
                                    ref_list, num_refs, use_subpixel, 1,
                                    &sms_tree->sms_none_feat[0],
                                    &sms_tree->sms_none_feat[1]);
  sms_tree->sms_none_valid = 1;
}

// Split subblocks
if (features_to_get & FEATURE_SMS_SPLIT_FLAG(1 << 1)) {
  const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_SPLIT);
  for (int r_idx = 0; r_idx < SUB_PARTITIONS_SPLIT4; r_idx++) {
    const int sub_mi_col = mi_col + (r_idx & 1) * w_mi / 2;
    const int sub_mi_row = mi_row + (r_idx >> 1) * h_mi / 2;
    SIMPLE_MOTION_DATA_TREE *sub_tree = sms_tree->split[r_idx];

    if (!sub_tree->sms_none_valid) {
      simple_motion_search_get_best_ref(
          cpi, x, sub_tree, sub_mi_row, sub_mi_col, subsize, ref_list,
          num_refs, use_subpixel, 1, &sub_tree->sms_none_feat[0],
          &sub_tree->sms_none_feat[1]);
      sub_tree->sms_none_valid = 1;
    }
  }
}

// Rectangular subblocks
if (!sms_tree->sms_rect_valid && features_to_get & FEATURE_SMS_RECT_FLAG(1 << 2)) {
  // Horz subblock
  BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_HORZ);
  for (int r_idx = 0; r_idx < SUB_PARTITIONS_RECT2; r_idx++) {
    const int sub_mi_col = mi_col + 0;
    const int sub_mi_row = mi_row + r_idx * h_mi / 2;

    simple_motion_search_get_best_ref(
        cpi, x, sms_tree, sub_mi_row, sub_mi_col, subsize, ref_list, num_refs,
        use_subpixel, 0, &sms_tree->sms_rect_feat[2 * r_idx],
        &sms_tree->sms_rect_feat[2 * r_idx + 1]);
  }

  // Vert subblock
  subsize = get_partition_subsize(bsize, PARTITION_VERT);
  for (int r_idx = 0; r_idx < SUB_PARTITIONS_RECT2; r_idx++) {
    const int sub_mi_col = mi_col + r_idx * w_mi / 2;
    const int sub_mi_row = mi_row + 0;

    simple_motion_search_get_best_ref(
        cpi, x, sms_tree, sub_mi_row, sub_mi_col, subsize, ref_list, num_refs,
        use_subpixel, 0, &sms_tree->sms_rect_feat[4 + 2 * r_idx],
        &sms_tree->sms_rect_feat[4 + 2 * r_idx + 1]);
  }
  sms_tree->sms_rect_valid = 1;
}

if (!features) return;

int f_idx = 0;
if (features_to_get & FEATURE_SMS_NONE_FLAG1) {
  for (int sub_idx = 0; sub_idx < 2; sub_idx++) {
    features[f_idx++] = log1pf((float)sms_tree->sms_none_feat[sub_idx]);
  }
}

if (features_to_get & FEATURE_SMS_SPLIT_FLAG(1 << 1)) {
  for (int sub_idx = 0; sub_idx < SUB_PARTITIONS_SPLIT4; sub_idx++) {
    SIMPLE_MOTION_DATA_TREE *sub_tree = sms_tree->split[sub_idx];
    features[f_idx++] = log1pf((float)sub_tree->sms_none_feat[0]);
    features[f_idx++] = log1pf((float)sub_tree->sms_none_feat[1]);
  }
}

if (features_to_get & FEATURE_SMS_RECT_FLAG(1 << 2)) {
  for (int sub_idx = 0; sub_idx < 8; sub_idx++) {
    features[f_idx++] = log1pf((float)sms_tree->sms_rect_feat[sub_idx]);
  }
}

const MACROBLOCKD *xd = &x->e_mbd;
set_offsets_for_motion_search(cpi, x, mi_row, mi_col, bsize);

// Q_INDEX
const int dc_q = av1_dc_quant_QTX(x->qindex, 0, xd->bd) >> (xd->bd - 8);
features[f_idx++] = log1pf((float)(dc_q * dc_q) / 256.0f);

// Neighbor stuff
const int has_above = !!xd->above_mbmi;
const int has_left = !!xd->left_mbmi;
const BLOCK_SIZE above_bsize = has_above ? xd->above_mbmi->bsize : bsize;
const BLOCK_SIZE left_bsize = has_left ? xd->left_mbmi->bsize : bsize;
features[f_idx++] = (float)has_above;
features[f_idx++] = (float)mi_size_wide_log2[above_bsize];
features[f_idx++] = (float)mi_size_high_log2[above_bsize];
features[f_idx++] = (float)has_left;
features[f_idx++] = (float)mi_size_wide_log2[left_bsize];
features[f_idx++] = (float)mi_size_high_log2[left_bsize];
644}

646// Performs a simple_motion_search with two reference frames and extract
647// the variance of residues. Then use the features to determine whether we want
648// to prune some partitions.
649static void simple_motion_search_prune_rect(AV1_COMP *const cpi, MACROBLOCK *x,
                                          SIMPLE_MOTION_DATA_TREE *sms_tree,
                                          PartitionSearchState *part_state) {
const AV1_COMMON *const cm = &cpi->common;
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

const int bsize_idx = convert_bsize_to_idx(bsize);
const int is_720p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 720;
const int is_480p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 480;
// res_idx is 0 for lowres, 1 for 48p, 2 for 720p+
const int res_idx = is_480p_or_larger + is_720p_or_larger;

// Get model parameters
const NN_CONFIG *nn_config =
    av1_simple_motion_search_prune_rect_nn_config[bsize_idx];
const float *ml_mean = av1_simple_motion_search_prune_rect_mean[bsize_idx],
            *ml_std = av1_simple_motion_search_prune_rect_std[bsize_idx];

const int agg = get_simple_motion_search_prune_agg(
    x->qindex, cpi->sf.part_sf.simple_motion_search_prune_agg, 1);
if (agg < 0) {
  return;
}

const float prune_thresh =
    av1_simple_motion_search_prune_rect_thresh[agg][res_idx][bsize_idx];

// If there is no valid threshold, return immediately.
if (!nn_config || prune_thresh == 0.0f) {
  return;
}

// Get features
float features[FEATURE_SIZE_SMS_PRUNE_PART25] = { 0.0f };
simple_motion_search_prune_part_features(cpi, x, sms_tree, mi_row, mi_col,
                                         bsize, features,
                                         FEATURE_SMS_PRUNE_PART_FLAG(1 | (1 << 1) | (1 << 2)));

// Note: it is intended to not normalize the features here, to keep it
// consistent for all features collected and passed to the external model.
if (cpi->sf.part_sf.simple_motion_search_prune_rect &&
    !frame_is_intra_only(cm) &&
    (part_state->partition_rect_allowed[HORZ] ||
     part_state->partition_rect_allowed[VERT]) &&
    bsize >= BLOCK_8X8 && !av1_superres_scaled(cm)) {
  // Write features to file
  write_features_to_file(
      cpi->oxcf.partition_info_path, cpi->ext_part_controller.test_mode,
      features, FEATURE_SIZE_SMS_PRUNE_PART25, 1, bsize, mi_row, mi_col);

  if (ext_ml_model_decision_before_none_part2(
          cpi, features, &part_state->prune_rect_part[HORZ],
          &part_state->prune_rect_part[VERT])) {
    return;
  }
}

for (int f_idx = 0; f_idx < FEATURE_SIZE_SMS_PRUNE_PART25; f_idx++) {
  features[f_idx] = (features[f_idx] - ml_mean[f_idx]) / ml_std[f_idx];
}

// Get probabilities
float scores[EXT_PARTITION_TYPES] = { 0.0f },
      probs[EXT_PARTITION_TYPES] = { 0.0f };
const int num_classes = (bsize == BLOCK_128X128 || bsize == BLOCK_8X8)
                            ? PARTITION_TYPES
                            : EXT_PARTITION_TYPES;

av1_nn_predict(features, nn_config, 1, scores);

av1_nn_softmax(scores, probs, num_classes);

// Determine if we should prune rectangular partitions.
if (probs[PARTITION_HORZ] <= prune_thresh) {
  part_state->prune_rect_part[HORZ] = 1;
}
if (probs[PARTITION_VERT] <= prune_thresh) {
  part_state->prune_rect_part[VERT] = 1;
}
730}

732// Early terminates PARTITION_NONE using simple_motion_search features and the
733// rate, distortion, and rdcost of PARTITION_NONE. This is only called when:
734//  - The frame is a show frame
735//  - The frame is not intra only
736//  - The current bsize is > BLOCK_8X8
737//  - blk_row + blk_height/2 < total_rows and blk_col + blk_width/2 < total_cols
738void av1_simple_motion_search_early_term_none(
  AV1_COMP *const cpi, MACROBLOCK *x, SIMPLE_MOTION_DATA_TREE *sms_tree,
  const RD_STATS *none_rdc, PartitionSearchState *part_state) {
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

float features[FEATURE_SIZE_SMS_TERM_NONE28] = { 0.0f };
simple_motion_search_prune_part_features(cpi, x, sms_tree, mi_row, mi_col,
                                         bsize, features,
                                         FEATURE_SMS_PRUNE_PART_FLAG(1 | (1 << 1) | (1 << 2)));
int f_idx = FEATURE_SIZE_SMS_PRUNE_PART25;

features[f_idx++] = log1pf((float)none_rdc->rate);
features[f_idx++] = log1pf((float)none_rdc->dist);
features[f_idx++] = log1pf((float)none_rdc->rdcost);

assert(f_idx == FEATURE_SIZE_SMS_TERM_NONE)((void) sizeof ((f_idx == 28) ? 1 : 0), __extension__ ({ if (
f_idx == 28) ; else __assert_fail ("f_idx == FEATURE_SIZE_SMS_TERM_NONE"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 755, __extension__ __PRETTY_FUNCTION__); }));

const float *ml_mean = NULL((void*)0);
const float *ml_std = NULL((void*)0);
const float *ml_model = NULL((void*)0);

if (bsize == BLOCK_128X128) {
  ml_mean = av1_simple_motion_search_term_none_mean_128;
  ml_std = av1_simple_motion_search_term_none_std_128;
  ml_model = av1_simple_motion_search_term_none_model_128;
} else if (bsize == BLOCK_64X64) {
  ml_mean = av1_simple_motion_search_term_none_mean_64;
  ml_std = av1_simple_motion_search_term_none_std_64;
  ml_model = av1_simple_motion_search_term_none_model_64;
} else if (bsize == BLOCK_32X32) {
  ml_mean = av1_simple_motion_search_term_none_mean_32;
  ml_std = av1_simple_motion_search_term_none_std_32;
  ml_model = av1_simple_motion_search_term_none_model_32;
} else if (bsize == BLOCK_16X16) {
  ml_mean = av1_simple_motion_search_term_none_mean_16;
  ml_std = av1_simple_motion_search_term_none_std_16;
  ml_model = av1_simple_motion_search_term_none_model_16;
} else {
  assert(0 && "Unexpected block size in simple_motion_term_none")((void) sizeof ((0 && "Unexpected block size in simple_motion_term_none"
) ? 1 : 0), __extension__ ({ if (0 && "Unexpected block size in simple_motion_term_none"
) ; else __assert_fail ("0 && \"Unexpected block size in simple_motion_term_none\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 778, __extension__ __PRETTY_FUNCTION__); }));
}

// Write features to file
write_features_to_file(cpi->oxcf.partition_info_path,
                       cpi->ext_part_controller.test_mode, features,
                       FEATURE_SIZE_SMS_TERM_NONE28, 3, bsize, mi_row, mi_col);

if (ext_ml_model_decision_after_none_part2(
        cpi, features, &part_state->terminate_partition_search)) {
  return;
}

if (ml_model) {
  float score = 0.0f;
  for (f_idx = 0; f_idx < FEATURE_SIZE_SMS_TERM_NONE28; f_idx++) {
    score +=
        ml_model[f_idx] * (features[f_idx] - ml_mean[f_idx]) / ml_std[f_idx];
  }
  score += ml_model[FEATURE_SIZE_SMS_TERM_NONE28];

  if (score >= 0.0f) {
    part_state->terminate_partition_search = 1;
  }
}
803}

805void av1_get_max_min_partition_features(AV1_COMP *const cpi, MACROBLOCK *x,
                                      int mi_row, int mi_col,
                                      float *features) {
AV1_COMMON *const cm = &cpi->common;
MACROBLOCKD *xd = &x->e_mbd;
const BLOCK_SIZE sb_size = cm->seq_params->sb_size;

// Currently this only allows 128X128 SB size. May extend it to 64X64 SB size.
assert(sb_size == BLOCK_128X128)((void) sizeof ((sb_size == BLOCK_128X128) ? 1 : 0), __extension__
 ({ if (sb_size == BLOCK_128X128) ; else __assert_fail ("sb_size == BLOCK_128X128"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 813, __extension__ __PRETTY_FUNCTION__); }));

int f_idx = 0;

const int dc_q = av1_dc_quant_QTX(x->qindex, 0, xd->bd) >> (xd->bd - 8);
const float log_q_sq = log1pf((float)(dc_q * dc_q) / 256.0f);

// Perform full-pixel single motion search in Y plane of 16x16 mbs in the sb
float sum_mv_row_sq = 0;
float sum_mv_row = 0;
float min_abs_mv_row = FLT_MAX3.40282347e+38F;
float max_abs_mv_row = 0;

float sum_mv_col_sq = 0;
float sum_mv_col = 0;
float min_abs_mv_col = FLT_MAX3.40282347e+38F;
float max_abs_mv_col = 0;

float sum_log_sse_sq = 0;
float sum_log_sse = 0;
float min_log_sse = FLT_MAX3.40282347e+38F;
float max_log_sse = 0;

const BLOCK_SIZE mb_size = BLOCK_16X16;
const int mb_rows = block_size_high[sb_size] / block_size_high[mb_size];
const int mb_cols = block_size_wide[sb_size] / block_size_wide[mb_size];
const int mb_in_mi_size_high_log2 = mi_size_high_log2[mb_size];
const int mb_in_mi_size_wide_log2 = mi_size_wide_log2[mb_size];

for (int mb_row = 0; mb_row < mb_rows; mb_row++)
  for (int mb_col = 0; mb_col < mb_cols; mb_col++) {
    const int this_mi_row = mi_row + (mb_row << mb_in_mi_size_high_log2);
    const int this_mi_col = mi_col + (mb_col << mb_in_mi_size_wide_log2);
    unsigned int sse = 0;
    unsigned int var = 0;
    const FULLPEL_MV start_mv = kZeroFullMv;
    const MV_REFERENCE_FRAME ref =
        cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME : LAST_FRAME;
    const int_mv best_mv = av1_simple_motion_search_sse_var(
        cpi, x, this_mi_row, this_mi_col, mb_size, ref, start_mv, 1, 0, &sse,
        &var);

    const float mv_row = (float)(best_mv.as_mv.row / 8);
    const float mv_col = (float)(best_mv.as_mv.col / 8);
    const float log_sse = log1pf((float)sse);
    const float abs_mv_row = fabsf(mv_row);
    const float abs_mv_col = fabsf(mv_col);

    sum_mv_row_sq += mv_row * mv_row;
    sum_mv_row += mv_row;
    sum_mv_col_sq += mv_col * mv_col;
    sum_mv_col += mv_col;

    if (abs_mv_row < min_abs_mv_row) min_abs_mv_row = abs_mv_row;
    if (abs_mv_row > max_abs_mv_row) max_abs_mv_row = abs_mv_row;
    if (abs_mv_col < min_abs_mv_col) min_abs_mv_col = abs_mv_col;
    if (abs_mv_col > max_abs_mv_col) max_abs_mv_col = abs_mv_col;

    sum_log_sse_sq += log_sse * log_sse;
    sum_log_sse += log_sse;
    if (log_sse < min_log_sse) min_log_sse = log_sse;
    if (log_sse > max_log_sse) max_log_sse = log_sse;
  }
const int blks = mb_rows * mb_cols;
const float avg_mv_row = sum_mv_row / (float)blks;
const float var_mv_row =
    sum_mv_row_sq / (float)blks - avg_mv_row * avg_mv_row;

const float avg_mv_col = sum_mv_col / (float)blks;
const float var_mv_col =
    sum_mv_col_sq / (float)blks - avg_mv_col * avg_mv_col;

const float avg_log_sse = sum_log_sse / (float)blks;
const float var_log_sse =
    sum_log_sse_sq / (float)blks - avg_log_sse * avg_log_sse;

features[f_idx++] = avg_log_sse;
features[f_idx++] = avg_mv_col;
features[f_idx++] = avg_mv_row;
features[f_idx++] = log_q_sq;
features[f_idx++] = max_abs_mv_col;
features[f_idx++] = max_abs_mv_row;
features[f_idx++] = max_log_sse;
features[f_idx++] = min_abs_mv_col;
features[f_idx++] = min_abs_mv_row;
features[f_idx++] = min_log_sse;
features[f_idx++] = var_log_sse;
features[f_idx++] = var_mv_col;
features[f_idx++] = var_mv_row;

assert(f_idx == FEATURE_SIZE_MAX_MIN_PART_PRED)((void) sizeof ((f_idx == 13) ? 1 : 0), __extension__ ({ if (
f_idx == 13) ; else __assert_fail ("f_idx == FEATURE_SIZE_MAX_MIN_PART_PRED"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 903, __extension__ __PRETTY_FUNCTION__); }));
904}

906// Convert result index to block size.
907// result idx     block size
908//     0          BLOCK_16X16
909//     1          BLOCK_32X32
910//     2          BLOCK_64X64
911//     3          BLOCK_128X128
912static BLOCK_SIZE get_block_size(int idx) {
return (BLOCK_SIZE)((idx + 2) * 3);
914}

916BLOCK_SIZE av1_predict_max_partition(const AV1_COMP *const cpi,
                                   const MACROBLOCK *const x,
                                   const float *features) {
float scores[MAX_NUM_CLASSES_MAX_MIN_PART_PRED4] = { 0.0f };
const NN_CONFIG *nn_config = &av1_max_part_pred_nn_config;

assert(cpi->sf.part_sf.auto_max_partition_based_on_simple_motion !=((void) sizeof ((cpi->sf.part_sf.auto_max_partition_based_on_simple_motion
 != NOT_IN_USE) ? 1 : 0), __extension__ ({ if (cpi->sf.part_sf
.auto_max_partition_based_on_simple_motion != NOT_IN_USE) ; else
 __assert_fail ("cpi->sf.part_sf.auto_max_partition_based_on_simple_motion != NOT_IN_USE"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 923, __extension__ __PRETTY_FUNCTION__); }))
       NOT_IN_USE)((void) sizeof ((cpi->sf.part_sf.auto_max_partition_based_on_simple_motion
 != NOT_IN_USE) ? 1 : 0), __extension__ ({ if (cpi->sf.part_sf
.auto_max_partition_based_on_simple_motion != NOT_IN_USE) ; else
 __assert_fail ("cpi->sf.part_sf.auto_max_partition_based_on_simple_motion != NOT_IN_USE"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 923, __extension__ __PRETTY_FUNCTION__); }));

av1_nn_predict(features, nn_config, 1, scores);

int result = MAX_NUM_CLASSES_MAX_MIN_PART_PRED4 - 1;
if (cpi->sf.part_sf.auto_max_partition_based_on_simple_motion ==
    DIRECT_PRED) {
  result = 0;
  float max_score = scores[0];
  for (int i = 1; i < MAX_NUM_CLASSES_MAX_MIN_PART_PRED4; ++i) {
    if (scores[i] > max_score) {
      max_score = scores[i];
      result = i;
    }
  }
  return get_block_size(result);
}

float probs[MAX_NUM_CLASSES_MAX_MIN_PART_PRED4] = { 0.0f };
av1_nn_softmax(scores, probs, MAX_NUM_CLASSES_MAX_MIN_PART_PRED4);

if (cpi->sf.part_sf.auto_max_partition_based_on_simple_motion ==
    RELAXED_PRED) {
  for (result = MAX_NUM_CLASSES_MAX_MIN_PART_PRED4 - 1; result >= 0;
       --result) {
    if (result < MAX_NUM_CLASSES_MAX_MIN_PART_PRED4 - 1) {
      probs[result] += probs[result + 1];
    }
    if (probs[result] > 0.2) break;
  }
} else if (cpi->sf.part_sf.auto_max_partition_based_on_simple_motion ==
           ADAPT_PRED) {
  const BLOCK_SIZE sb_size = cpi->common.seq_params->sb_size;
  // TODO(debargha): x->source_variance is unavailable at this point,
  // so compute. The redundant recomputation later can be removed.
  const unsigned int source_variance = av1_get_perpixel_variance_facade(
      cpi, &x->e_mbd, &x->plane[0].src, sb_size, AOM_PLANE_Y0);
  if (source_variance > 16) {
    const double thresh = source_variance < 128 ? 0.05 : 0.1;
    for (result = MAX_NUM_CLASSES_MAX_MIN_PART_PRED4 - 1; result >= 0;
         --result) {
      if (result < MAX_NUM_CLASSES_MAX_MIN_PART_PRED4 - 1) {
        probs[result] += probs[result + 1];
      }
      if (probs[result] > thresh) break;
    }
  }
}

return get_block_size(result);
973}

975// Get the minimum partition block width and height(in log scale) under a
976// SIMPLE_MOTION_DATA_TREE.
977static inline void get_min_bsize(const SIMPLE_MOTION_DATA_TREE *sms_tree,
                               int *min_bw, int *min_bh) {
if (!sms_tree) return;

const BLOCK_SIZE bsize = sms_tree->block_size;
if (bsize == BLOCK_4X4) {
  *min_bw = 0;
  *min_bh = 0;
  return;
}

PARTITION_TYPE part_type = sms_tree->partitioning;
if (part_type == PARTITION_INVALID) return;

if (part_type == PARTITION_SPLIT) {
  for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
    get_min_bsize(sms_tree->split[i], min_bw, min_bh);
  }
} else {
  if (part_type == PARTITION_HORZ_A || part_type == PARTITION_HORZ_B ||
      part_type == PARTITION_VERT_A || part_type == PARTITION_VERT_B)
    part_type = PARTITION_SPLIT;
  const BLOCK_SIZE subsize = get_partition_subsize(bsize, part_type);
  if (subsize != BLOCK_INVALID) {
    *min_bw = AOMMIN(*min_bw, mi_size_wide_log2[subsize])(((*min_bw) < (mi_size_wide_log2[subsize])) ? (*min_bw) : (
mi_size_wide_log2[subsize]));
    *min_bh = AOMMIN(*min_bh, mi_size_high_log2[subsize])(((*min_bh) < (mi_size_high_log2[subsize])) ? (*min_bh) : (
mi_size_high_log2[subsize]));
  }
}
1005}

1007static inline void add_rd_feature(int64_t rd, int64_t best_rd, float *features,
                                int *feature_idx) {
const int rd_valid = rd > 0 && rd < INT64_MAX(9223372036854775807L);
const float rd_ratio = rd_valid ? (float)rd / best_rd : 1.0f;
features[(*feature_idx)++] = (float)rd_valid;
features[(*feature_idx)++] = rd_ratio;
1013}

1015#define FEATURES 31
1016void av1_ml_early_term_after_split(AV1_COMP *const cpi, MACROBLOCK *const x,
                                 SIMPLE_MOTION_DATA_TREE *const sms_tree,
                                 int64_t best_rd, int64_t part_none_rd,
                                 int64_t part_split_rd,
                                 int64_t *split_block_rd,
                                 PartitionSearchState *part_state) {
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

if (best_rd <= 0 || best_rd == INT64_MAX(9223372036854775807L) ||
    part_state->terminate_partition_search)
  return;

const AV1_COMMON *const cm = &cpi->common;
const int is_480p_or_larger = AOMMIN(cm->width, cm->height)(((cm->width) < (cm->height)) ? (cm->width) : (cm
->height)) >= 480;
const NN_CONFIG *nn_config = NULL((void*)0);
float thresh = -1e6;
switch (bsize) {
  case BLOCK_128X128: break;
  case BLOCK_64X64:
    nn_config = &av1_early_term_after_split_nnconfig_64;
    thresh = is_480p_or_larger ? -2.0f : -1.2f;
    break;
  case BLOCK_32X32:
    nn_config = &av1_early_term_after_split_nnconfig_32;
    thresh = is_480p_or_larger ? -2.6f : -2.3f;
    break;
  case BLOCK_16X16:
    nn_config = &av1_early_term_after_split_nnconfig_16;
    thresh = is_480p_or_larger ? -2.0f : -2.4f;
    break;
  case BLOCK_8X8:
    nn_config = &av1_early_term_after_split_nnconfig_8;
    thresh = is_480p_or_larger ? -1.0f : -1.4f;
    break;
  case BLOCK_4X4: break;
  default:
    assert(0 && "Invalid block size in av1_ml_early_term_after_split().")((void) sizeof ((0 && "Invalid block size in av1_ml_early_term_after_split()."
) ? 1 : 0), __extension__ ({ if (0 && "Invalid block size in av1_ml_early_term_after_split()."
) ; else __assert_fail ("0 && \"Invalid block size in av1_ml_early_term_after_split().\""
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1054, __extension__ __PRETTY_FUNCTION__); }));
    break;
}
if (!nn_config) return;

// Use more conservative threshold for level 1.
if (cpi->sf.part_sf.ml_early_term_after_part_split_level < 2) thresh -= 0.3f;

const MACROBLOCKD *const xd = &x->e_mbd;
const int dc_q = av1_dc_quant_QTX(x->qindex, 0, xd->bd) >> (xd->bd - 8);
const int bs = block_size_wide[bsize];
int f_idx = 0;
float features[FEATURES] = { 0.0f };

features[f_idx++] = log1pf((float)dc_q / 4.0f);
features[f_idx++] = log1pf((float)best_rd / bs / bs / 1024.0f);

add_rd_feature(part_none_rd, best_rd, features, &f_idx);
add_rd_feature(part_split_rd, best_rd, features, &f_idx);

for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
  add_rd_feature(split_block_rd[i], best_rd, features, &f_idx);
  int min_bw = MAX_SB_SIZE_LOG27;
  int min_bh = MAX_SB_SIZE_LOG27;
  get_min_bsize(sms_tree->split[i], &min_bw, &min_bh);
  features[f_idx++] = (float)min_bw;
  features[f_idx++] = (float)min_bh;
}

simple_motion_search_prune_part_features(cpi, x, sms_tree, mi_row, mi_col,
                                         bsize, NULL((void*)0),
                                         FEATURE_SMS_PRUNE_PART_FLAG(1 | (1 << 1) | (1 << 2)));

features[f_idx++] = log1pf((float)sms_tree->sms_none_feat[1]);

features[f_idx++] = log1pf((float)sms_tree->split[0]->sms_none_feat[1]);
features[f_idx++] = log1pf((float)sms_tree->split[1]->sms_none_feat[1]);
features[f_idx++] = log1pf((float)sms_tree->split[2]->sms_none_feat[1]);
features[f_idx++] = log1pf((float)sms_tree->split[3]->sms_none_feat[1]);

features[f_idx++] = log1pf((float)sms_tree->sms_rect_feat[1]);
features[f_idx++] = log1pf((float)sms_tree->sms_rect_feat[3]);
features[f_idx++] = log1pf((float)sms_tree->sms_rect_feat[5]);
features[f_idx++] = log1pf((float)sms_tree->sms_rect_feat[7]);

assert(f_idx == FEATURES)((void) sizeof ((f_idx == FEATURES) ? 1 : 0), __extension__ (
{ if (f_idx == FEATURES) ; else __assert_fail ("f_idx == FEATURES"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1099, __extension__ __PRETTY_FUNCTION__); }));

// Write features to file
write_features_to_file(cpi->oxcf.partition_info_path,
                       cpi->ext_part_controller.test_mode, features, FEATURES,
                       4, bsize, mi_row, mi_col);

if (ext_ml_model_decision_after_split(
        cpi, features, &part_state->terminate_partition_search)) {
  return;
}

float score = 0.0f;
av1_nn_predict(features, nn_config, 1, &score);
// Score is indicator of confidence that we should NOT terminate.
if (score < thresh) {
  part_state->terminate_partition_search = 1;
}
1117}
1118#undef FEATURES

1120void av1_ml_prune_rect_partition(AV1_COMP *const cpi, const MACROBLOCK *const x,
                               int64_t best_rd, int64_t none_rd,
                               const int64_t *split_rd,
                               PartitionSearchState *part_state) {
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

if (bsize < BLOCK_8X8 || best_rd >= 1000000000) return;
best_rd = AOMMAX(best_rd, 1)(((best_rd) > (1)) ? (best_rd) : (1));
const NN_CONFIG *nn_config = NULL((void*)0);
const float prob_thresholds[5] = { 0.01f, 0.01f, 0.004f, 0.002f, 0.002f };
float cur_thresh = 0.0f;
switch (bsize) {
  case BLOCK_8X8:
    nn_config = &av1_rect_partition_nnconfig_8;
    cur_thresh = prob_thresholds[0];
    break;
  case BLOCK_16X16:
    nn_config = &av1_rect_partition_nnconfig_16;
    cur_thresh = prob_thresholds[1];
    break;
  case BLOCK_32X32:
    nn_config = &av1_rect_partition_nnconfig_32;
    cur_thresh = prob_thresholds[2];
    break;
  case BLOCK_64X64:
    nn_config = &av1_rect_partition_nnconfig_64;
    cur_thresh = prob_thresholds[3];
    break;
  case BLOCK_128X128:
    nn_config = &av1_rect_partition_nnconfig_128;
    cur_thresh = prob_thresholds[4];
    break;
  default: assert(0 && "Unexpected bsize.")((void) sizeof ((0 && "Unexpected bsize.") ? 1 : 0), __extension__
 ({ if (0 && "Unexpected bsize.") ; else __assert_fail
 ("0 && \"Unexpected bsize.\"", "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1154, __extension__ __PRETTY_FUNCTION__); }));
}
if (!nn_config) return;

// 1. Compute input features
float features[9];

// RD cost ratios
for (int i = 0; i < 5; i++) features[i] = 1.0f;
if (none_rd > 0 && none_rd < 1000000000)
  features[0] = (float)none_rd / (float)best_rd;
for (int i = 0; i < SUB_PARTITIONS_SPLIT4; i++) {
  if (split_rd[i] > 0 && split_rd[i] < 1000000000)
    features[1 + i] = (float)split_rd[i] / (float)best_rd;
}

// Variance ratios
const MACROBLOCKD *const xd = &x->e_mbd;
int whole_block_variance;
whole_block_variance = av1_get_perpixel_variance_facade(
    cpi, xd, &x->plane[0].src, bsize, AOM_PLANE_Y0);
whole_block_variance = AOMMAX(whole_block_variance, 1)(((whole_block_variance) > (1)) ? (whole_block_variance) :
 (1));

int split_variance[SUB_PARTITIONS_SPLIT4];
const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_SPLIT);
struct buf_2d buf;
buf.stride = x->plane[0].src.stride;
const int bw = block_size_wide[bsize];
for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
  const int x_idx = (i & 1) * bw / 2;
  const int y_idx = (i >> 1) * bw / 2;
  buf.buf = x->plane[0].src.buf + x_idx + y_idx * buf.stride;
  split_variance[i] =
      av1_get_perpixel_variance_facade(cpi, xd, &buf, subsize, AOM_PLANE_Y0);
}

for (int i = 0; i < SUB_PARTITIONS_SPLIT4; i++)
  features[5 + i] = (float)split_variance[i] / (float)whole_block_variance;

// Write features to file
write_features_to_file(cpi->oxcf.partition_info_path,
                       cpi->ext_part_controller.test_mode, features,
                       /*feature_size=*/9, 5, bsize, mi_row, mi_col);

if (ext_ml_model_decision_after_split_part2(
        &cpi->ext_part_controller, frame_is_intra_only(&cpi->common),
        features, &part_state->prune_rect_part[HORZ],
        &part_state->prune_rect_part[VERT])) {
  return;
}

// 2. Do the prediction and prune 0-2 partitions based on their probabilities
float raw_scores[3] = { 0.0f };
av1_nn_predict(features, nn_config, 1, raw_scores);
float probs[3] = { 0.0f };
av1_nn_softmax(raw_scores, probs, 3);

// probs[0] is the probability of the fact that both rectangular partitions
// are worse than current best_rd
if (probs[1] <= cur_thresh) part_state->prune_rect_part[HORZ] = 1;
if (probs[2] <= cur_thresh) part_state->prune_rect_part[VERT] = 1;
1215}

1217// Use a ML model to predict if horz_a, horz_b, vert_a, and vert_b should be
1218// considered.
1219static void ml_prune_ab_partition(AV1_COMP *const cpi, int part_ctx,
                                int var_ctx, int64_t best_rd,
                                PartitionSearchState *part_state,
                                int *ab_partitions_allowed) {
const PartitionBlkParams blk_params = part_state->part_blk_params;
const int mi_row = blk_params.mi_row;
const int mi_col = blk_params.mi_col;
const BLOCK_SIZE bsize = blk_params.bsize;

if (bsize < BLOCK_8X8 || best_rd >= 1000000000) return;
const NN_CONFIG *nn_config = NULL((void*)0);
switch (bsize) {
  case BLOCK_8X8: nn_config = NULL((void*)0); break;
  case BLOCK_16X16: nn_config = &av1_ab_partition_nnconfig_16; break;
  case BLOCK_32X32: nn_config = &av1_ab_partition_nnconfig_32; break;
  case BLOCK_64X64: nn_config = &av1_ab_partition_nnconfig_64; break;
  case BLOCK_128X128: nn_config = &av1_ab_partition_nnconfig_128; break;
  default: assert(0 && "Unexpected bsize.")((void) sizeof ((0 && "Unexpected bsize.") ? 1 : 0), __extension__
 ({ if (0 && "Unexpected bsize.") ; else __assert_fail
 ("0 && \"Unexpected bsize.\"", "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1236, __extension__ __PRETTY_FUNCTION__); }));
}
if (!nn_config) return;

// Generate features.
float features[10];
int feature_index = 0;
features[feature_index++] = (float)part_ctx;
features[feature_index++] = (float)var_ctx;
const int rdcost = (int)AOMMIN(INT_MAX, best_rd)(((2147483647) < (best_rd)) ? (2147483647) : (best_rd));
int sub_block_rdcost[8] = { 0 };
int rd_index = 0;
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  const int64_t *horz_rd = part_state->rect_part_rd[HORZ];
  if (horz_rd[i] > 0 && horz_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)horz_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  const int64_t *vert_rd = part_state->rect_part_rd[VERT];
  if (vert_rd[i] > 0 && vert_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)vert_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
  const int64_t *split_rd = part_state->split_rd;
  if (split_rd[i] > 0 && split_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)split_rd[i];
  ++rd_index;
}
for (int i = 0; i < 8; ++i) {
  // Ratio between the sub-block RD and the whole-block RD.
  float rd_ratio = 1.0f;
  if (sub_block_rdcost[i] > 0 && sub_block_rdcost[i] < rdcost)
    rd_ratio = (float)sub_block_rdcost[i] / (float)rdcost;
  features[feature_index++] = rd_ratio;
}
assert(feature_index == 10)((void) sizeof ((feature_index == 10) ? 1 : 0), __extension__
 ({ if (feature_index == 10) ; else __assert_fail ("feature_index == 10"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1273, __extension__ __PRETTY_FUNCTION__); }));

// Write features to file
if (!frame_is_intra_only(&cpi->common)) {
  write_features_to_file(cpi->oxcf.partition_info_path,
                         cpi->ext_part_controller.test_mode, features,
                         /*feature_size=*/10, 6, bsize, mi_row, mi_col);
}

if (ext_ml_model_decision_after_rect(
        &cpi->ext_part_controller, frame_is_intra_only(&cpi->common),
        features, &ab_partitions_allowed[HORZ_A],
        &ab_partitions_allowed[HORZ_B], &ab_partitions_allowed[VERT_A],
        &ab_partitions_allowed[VERT_B])) {
  return;
}

// Calculate scores using the NN model.
float score[16] = { 0.0f };
av1_nn_predict(features, nn_config, 1, score);
int int_score[16];
int max_score = -1000;
for (int i = 0; i < 16; ++i) {
  int_score[i] = (int)(100 * score[i]);
  max_score = AOMMAX(int_score[i], max_score)(((int_score[i]) > (max_score)) ? (int_score[i]) : (max_score
));
}

// Make decisions based on the model scores.
int thresh = max_score;
switch (bsize) {
  case BLOCK_16X16: thresh -= 150; break;
  case BLOCK_32X32: thresh -= 100; break;
  default: break;
}
av1_zero_array(ab_partitions_allowed, NUM_AB_PARTS)memset(ab_partitions_allowed, 0, NUM_AB_PARTS * sizeof(*(ab_partitions_allowed
)));
for (int i = 0; i < 16; ++i) {
  if (int_score[i] >= thresh) {
    if ((i >> 0) & 1) ab_partitions_allowed[HORZ_A] = 1;
    if ((i >> 1) & 1) ab_partitions_allowed[HORZ_B] = 1;
    if ((i >> 2) & 1) ab_partitions_allowed[VERT_A] = 1;
    if ((i >> 3) & 1) ab_partitions_allowed[VERT_B] = 1;
  }
}
1316}

1318#define FEATURES 18
1319#define LABELS 4
1320// Use a ML model to predict if horz4 and vert4 should be considered.
1321void av1_ml_prune_4_partition(AV1_COMP *const cpi, MACROBLOCK *const x,
                            int part_ctx, int64_t best_rd,
                            PartitionSearchState *part_state,
                            int *part4_allowed,
                            unsigned int pb_source_variance) {
const PartitionBlkParams blk_params = part_state->part_blk_params;
const int mi_row = blk_params.mi_row;
const int mi_col = blk_params.mi_col;
const BLOCK_SIZE bsize = blk_params.bsize;

int64_t(*rect_part_rd)[SUB_PARTITIONS_RECT2] = part_state->rect_part_rd;
int64_t *split_rd = part_state->split_rd;
if (ext_ml_model_decision_after_part_ab(
        cpi, x, bsize, part_ctx, best_rd, rect_part_rd, split_rd,
        &part4_allowed[HORZ4], &part4_allowed[VERT4], pb_source_variance,
        mi_row, mi_col))
  return;

if (best_rd >= 1000000000) return;
int64_t *horz_rd = rect_part_rd[HORZ4];
int64_t *vert_rd = rect_part_rd[VERT4];
const NN_CONFIG *nn_config = NULL((void*)0);
// 4-way partitions are only allowed for these three square block sizes.
switch (bsize) {
  case BLOCK_16X16: nn_config = &av1_4_partition_nnconfig_16; break;
  case BLOCK_32X32: nn_config = &av1_4_partition_nnconfig_32; break;
  case BLOCK_64X64: nn_config = &av1_4_partition_nnconfig_64; break;
  default: assert(0 && "Unexpected bsize.")((void) sizeof ((0 && "Unexpected bsize.") ? 1 : 0), __extension__
 ({ if (0 && "Unexpected bsize.") ; else __assert_fail
 ("0 && \"Unexpected bsize.\"", "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1348, __extension__ __PRETTY_FUNCTION__); }));
}
if (!nn_config) return;

// Generate features.
float features[FEATURES];
int feature_index = 0;
features[feature_index++] = (float)part_ctx;
features[feature_index++] = (float)get_unsigned_bits(pb_source_variance);

const int rdcost = (int)AOMMIN(INT_MAX, best_rd)(((2147483647) < (best_rd)) ? (2147483647) : (best_rd));
int sub_block_rdcost[8] = { 0 };
int rd_index = 0;
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  if (horz_rd[i] > 0 && horz_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)horz_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  if (vert_rd[i] > 0 && vert_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)vert_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
  if (split_rd[i] > 0 && split_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)split_rd[i];
  ++rd_index;
}
for (int i = 0; i < 8; ++i) {
  // Ratio between the sub-block RD and the whole-block RD.
  float rd_ratio = 1.0f;
  if (sub_block_rdcost[i] > 0 && sub_block_rdcost[i] < rdcost)
    rd_ratio = (float)sub_block_rdcost[i] / (float)rdcost;
  features[feature_index++] = rd_ratio;
}

// Get variance of the 1:4 and 4:1 sub-blocks.
unsigned int horz_4_source_var[SUB_PARTITIONS_PART44] = { 0 };
unsigned int vert_4_source_var[SUB_PARTITIONS_PART44] = { 0 };
{
  BLOCK_SIZE horz_4_bs = get_partition_subsize(bsize, PARTITION_HORZ_4);
  BLOCK_SIZE vert_4_bs = get_partition_subsize(bsize, PARTITION_VERT_4);

  assert(horz_4_bs != BLOCK_INVALID)((void) sizeof ((horz_4_bs != BLOCK_INVALID) ? 1 : 0), __extension__
 ({ if (horz_4_bs != BLOCK_INVALID) ; else __assert_fail ("horz_4_bs != BLOCK_INVALID"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1391, __extension__ __PRETTY_FUNCTION__); }));
  assert(vert_4_bs != BLOCK_INVALID)((void) sizeof ((vert_4_bs != BLOCK_INVALID) ? 1 : 0), __extension__
 ({ if (vert_4_bs != BLOCK_INVALID) ; else __assert_fail ("vert_4_bs != BLOCK_INVALID"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1392, __extension__ __PRETTY_FUNCTION__); }));

  av1_setup_src_planes(x, cpi->source, mi_row, mi_col,
                       av1_num_planes(&cpi->common), bsize);
  const int src_stride = x->plane[0].src.stride;
  uint8_t *src = x->plane[0].src.buf;
  const MACROBLOCKD *const xd = &x->e_mbd;

  struct buf_2d horz_4_src, vert_4_src;
  horz_4_src.stride = src_stride;
  vert_4_src.stride = src_stride;

  for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
    horz_4_src.buf = src + i * block_size_high[horz_4_bs] * src_stride;
    vert_4_src.buf = src + i * block_size_wide[vert_4_bs];

    horz_4_source_var[i] = av1_get_perpixel_variance_facade(
        cpi, xd, &horz_4_src, horz_4_bs, AOM_PLANE_Y0);
    vert_4_source_var[i] = av1_get_perpixel_variance_facade(
        cpi, xd, &vert_4_src, vert_4_bs, AOM_PLANE_Y0);
  }
}

const float denom = (float)(pb_source_variance + 1);
const float low_b = 0.1f;
const float high_b = 10.0f;
for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
  // Ratio between the 4:1 sub-block variance and the whole-block variance.
  float var_ratio = (float)(horz_4_source_var[i] + 1) / denom;
  if (var_ratio < low_b) var_ratio = low_b;
  if (var_ratio > high_b) var_ratio = high_b;
  features[feature_index++] = var_ratio;
}
for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
  // Ratio between the 1:4 sub-block RD and the whole-block RD.
  float var_ratio = (float)(vert_4_source_var[i] + 1) / denom;
  if (var_ratio < low_b) var_ratio = low_b;
  if (var_ratio > high_b) var_ratio = high_b;
  features[feature_index++] = var_ratio;
}
assert(feature_index == FEATURES)((void) sizeof ((feature_index == FEATURES) ? 1 : 0), __extension__
 ({ if (feature_index == FEATURES) ; else __assert_fail ("feature_index == FEATURES"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1432, __extension__ __PRETTY_FUNCTION__); }));

// Write features to file
if (!frame_is_intra_only(&cpi->common)) {
  write_features_to_file(cpi->oxcf.partition_info_path,
                         cpi->ext_part_controller.test_mode, features,
                         FEATURES, 7, bsize, mi_row, mi_col);
}

// Calculate scores using the NN model.
float score[LABELS] = { 0.0f };
av1_nn_predict(features, nn_config, 1, score);
int int_score[LABELS];
int max_score = -1000;
for (int i = 0; i < LABELS; ++i) {
  int_score[i] = (int)(100 * score[i]);
  max_score = AOMMAX(int_score[i], max_score)(((int_score[i]) > (max_score)) ? (int_score[i]) : (max_score
));
}

// Make decisions based on the model scores.
int thresh = max_score;
switch (bsize) {
  case BLOCK_16X16: thresh -= 500; break;
  case BLOCK_32X32: thresh -= 500; break;
  case BLOCK_64X64: thresh -= 200; break;
  default: break;
}
av1_zero_array(part4_allowed, NUM_PART4_TYPES)memset(part4_allowed, 0, NUM_PART4_TYPES * sizeof(*(part4_allowed
)));
for (int i = 0; i < LABELS; ++i) {
  if (int_score[i] >= thresh) {
    if ((i >> 0) & 1) part4_allowed[HORZ4] = 1;
    if ((i >> 1) & 1) part4_allowed[VERT4] = 1;
  }
}
1466}
1467#undef FEATURES
1468#undef LABELS

1470#define FEATURES 4
1471void av1_ml_predict_breakout(AV1_COMP *const cpi, const MACROBLOCK *const x,
                           const RD_STATS *const rd_stats,
                           unsigned int pb_source_variance, int bit_depth,
                           PartitionSearchState *part_state) {
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const int mi_row = blk_params->mi_row, mi_col = blk_params->mi_col;
const BLOCK_SIZE bsize = blk_params->bsize;

const NN_CONFIG *nn_config = NULL((void*)0);
int thresh = 0;
switch (bsize) {
  case BLOCK_8X8:
    nn_config = &av1_partition_breakout_nnconfig_8;
    thresh = cpi->sf.part_sf.ml_partition_search_breakout_thresh[0];
    break;
  case BLOCK_16X16:
    nn_config = &av1_partition_breakout_nnconfig_16;
    thresh = cpi->sf.part_sf.ml_partition_search_breakout_thresh[1];
    break;
  case BLOCK_32X32:
    nn_config = &av1_partition_breakout_nnconfig_32;
    thresh = cpi->sf.part_sf.ml_partition_search_breakout_thresh[2];
    break;
  case BLOCK_64X64:
    nn_config = &av1_partition_breakout_nnconfig_64;
    thresh = cpi->sf.part_sf.ml_partition_search_breakout_thresh[3];
    break;
  case BLOCK_128X128:
    nn_config = &av1_partition_breakout_nnconfig_128;
    thresh = cpi->sf.part_sf.ml_partition_search_breakout_thresh[4];
    break;
  default: assert(0 && "Unexpected bsize.")((void) sizeof ((0 && "Unexpected bsize.") ? 1 : 0), __extension__
 ({ if (0 && "Unexpected bsize.") ; else __assert_fail
 ("0 && \"Unexpected bsize.\"", "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1502, __extension__ __PRETTY_FUNCTION__); }));
}
if (!nn_config || thresh < 0) return;

const float ml_predict_breakout_thresh_scale[3] = { 1.15f, 1.05f, 1.0f };
thresh = (int)((float)thresh *
               ml_predict_breakout_thresh_scale
                   [cpi->sf.part_sf.ml_predict_breakout_level - 1]);

// Generate feature values.
float features[FEATURES];
int feature_index = 0;

const int num_pels_log2 = num_pels_log2_lookup[bsize];
float rate_f = (float)AOMMIN(rd_stats->rate, INT_MAX)(((rd_stats->rate) < (2147483647)) ? (rd_stats->rate
) : (2147483647));
rate_f = ((float)x->rdmult / 128.0f / 512.0f / (float)(1 << num_pels_log2)) *
         rate_f;
features[feature_index++] = rate_f;

const float dist_f =
    (float)(AOMMIN(rd_stats->dist, INT_MAX)(((rd_stats->dist) < (2147483647)) ? (rd_stats->dist
) : (2147483647)) >> num_pels_log2);
features[feature_index++] = dist_f;

features[feature_index++] = (float)pb_source_variance;

const int dc_q = (int)x->plane[0].dequant_QTX[0] >> (bit_depth - 8);
features[feature_index++] = (float)(dc_q * dc_q) / 256.0f;
assert(feature_index == FEATURES)((void) sizeof ((feature_index == FEATURES) ? 1 : 0), __extension__
 ({ if (feature_index == FEATURES) ; else __assert_fail ("feature_index == FEATURES"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1529, __extension__ __PRETTY_FUNCTION__); }));

// Write features to file
write_features_to_file(cpi->oxcf.partition_info_path,
                       cpi->ext_part_controller.test_mode, features, FEATURES,
                       2, bsize, mi_row, mi_col);

if (ext_ml_model_decision_after_none(&cpi->ext_part_controller,
                                     frame_is_intra_only(&cpi->common),
                                     features, &part_state->do_square_split,
                                     &part_state->do_rectangular_split)) {
  return;
}

// Calculate score using the NN model.
float score = 0.0f;
av1_nn_predict(features, nn_config, 1, &score);

// Make decision.
if ((int)(score * 100) >= thresh) {
  part_state->do_square_split = 0;
  part_state->do_rectangular_split = 0;
}
1552}
1553#undef FEATURES

1555void av1_prune_partitions_before_search(AV1_COMP *const cpi,
                                      MACROBLOCK *const x,
                                      SIMPLE_MOTION_DATA_TREE *const sms_tree,
                                      PartitionSearchState *part_state) {
const AV1_COMMON *const cm = &cpi->common;
const CommonModeInfoParams *const mi_params = &cm->mi_params;

const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const BLOCK_SIZE bsize = blk_params->bsize;

1565#if CONFIG_THREE_PASS0
if (cpi->third_pass_ctx) {
  int mi_row = blk_params->mi_row;
  int mi_col = blk_params->mi_col;
  double ratio_h, ratio_w;
  av1_get_third_pass_ratio(cpi->third_pass_ctx, 0, cm->height, cm->width,
                           &ratio_h, &ratio_w);
  THIRD_PASS_MI_INFO *this_mi = av1_get_third_pass_mi(
      cpi->third_pass_ctx, 0, mi_row, mi_col, ratio_h, ratio_w);
  BLOCK_SIZE third_pass_bsize =
      av1_get_third_pass_adjusted_blk_size(this_mi, ratio_h, ratio_w);
  // check the actual partition of this block in the second pass
  PARTITION_TYPE third_pass_part =
      av1_third_pass_get_sb_part_type(cpi->third_pass_ctx, this_mi);

  int is_edge = (mi_row + mi_size_high[bsize] >= cm->mi_params.mi_rows) ||
                (mi_col + mi_size_wide[bsize] >= cm->mi_params.mi_cols);

  if (!is_edge && block_size_wide[bsize] >= 16) {
    // If in second pass we used rectangular partition, then do not search for
    // rectangular partition in the different direction.
    if (third_pass_part != PARTITION_NONE) {
      if (third_pass_part == PARTITION_HORZ ||
          third_pass_part == PARTITION_HORZ_4 ||
          third_pass_part == PARTITION_HORZ_A ||
          third_pass_part == PARTITION_HORZ_B) {
        part_state->partition_rect_allowed[VERT] = 0;
      } else if (third_pass_part == PARTITION_VERT ||
                 third_pass_part == PARTITION_VERT_4 ||
                 third_pass_part == PARTITION_VERT_A ||
                 third_pass_part == PARTITION_VERT_B) {
        part_state->partition_rect_allowed[HORZ] = 0;
      }
    }

    int minSize = AOMMIN(block_size_wide[third_pass_bsize],(((block_size_wide[third_pass_bsize]) < (block_size_high[third_pass_bsize
])) ? (block_size_wide[third_pass_bsize]) : (block_size_high[
third_pass_bsize]))
                         block_size_high[third_pass_bsize])(((block_size_wide[third_pass_bsize]) < (block_size_high[third_pass_bsize
])) ? (block_size_wide[third_pass_bsize]) : (block_size_high[
third_pass_bsize]));
    int maxSize = AOMMAX(block_size_wide[third_pass_bsize],(((block_size_wide[third_pass_bsize]) > (block_size_high[third_pass_bsize
])) ? (block_size_wide[third_pass_bsize]) : (block_size_high[
third_pass_bsize]))
                         block_size_high[third_pass_bsize])(((block_size_wide[third_pass_bsize]) > (block_size_high[third_pass_bsize
])) ? (block_size_wide[third_pass_bsize]) : (block_size_high[
third_pass_bsize]));
    if (block_size_wide[bsize] < minSize / 4) {
      // Current partition is too small, just terminate
      part_state->terminate_partition_search = 1;
      return;
    } else if (block_size_wide[bsize] < minSize / 2) {
      if (third_pass_part != PARTITION_NONE) {
        // Current partition is very small, and in second pass we used
        // rectangular partition. Terminate the search here then.
        part_state->terminate_partition_search = 1;
        return;
      } else {
        // Partition is small, but we still check this partition, only disable
        // further splits.
        // TODO(any): check why this is not covered by the termination for <
        // minSize/4.
        av1_disable_square_split_partition(part_state);
        av1_disable_rect_partitions(part_state);
        return;
      }
    } else if (block_size_wide[bsize] > maxSize) {
      // Partition is larger than in the second pass. Only allow split.
      av1_set_square_split_only(part_state);
      return;
    } else if (block_size_wide[bsize] >= minSize &&
               block_size_wide[bsize] <= maxSize) {
      // Partition is within a range where it is very likely to find a good
      // choice, so do not prune anything.
      return;
    }
  }
}
1635#endif  // CONFIG_THREE_PASS

// Prune rectangular partitions for larger blocks.
if (bsize > cpi->sf.part_sf.rect_partition_eval_thresh) {
  part_state->do_rectangular_split = 0;
  part_state->partition_rect_allowed[HORZ] = 0;
  part_state->partition_rect_allowed[VERT] = 0;
}

// Prune rectangular, AB and 4-way partition based on q index and block size
if (cpi->sf.part_sf.prune_rectangular_split_based_on_qidx == 1) {
  if (bsize == BLOCK_8X8 && x->qindex < 35)
    av1_disable_rect_partitions(part_state);

} else if (cpi->sf.part_sf.prune_rectangular_split_based_on_qidx == 2) {
  // Enumeration difference between two square partitions
  const int sqr_bsize_step = BLOCK_32X32 - BLOCK_16X16;
  int max_bsize =
      BLOCK_32X32 - (x->qindex * 3 / QINDEX_RANGE(255 - 0 + 1)) * sqr_bsize_step;
  max_bsize = AOMMAX(max_bsize, BLOCK_4X4)(((max_bsize) > (BLOCK_4X4)) ? (max_bsize) : (BLOCK_4X4));
  const BLOCK_SIZE max_prune_bsize =
      (BLOCK_SIZE)AOMMIN(max_bsize, BLOCK_32X32)(((max_bsize) < (BLOCK_32X32)) ? (max_bsize) : (BLOCK_32X32
));

  // Prune partition
  // qidx 0 to 85: prune bsize below BLOCK_32X32
  // qidx 86 to 170: prune bsize below BLOCK_16X16
  // qidx 171 to 255: prune bsize below BLOCK_8X8
  if (bsize < max_prune_bsize) {
    av1_disable_rect_partitions(part_state);
  }
}

if (cpi->sf.part_sf.prune_sub_8x8_partition_level && (bsize == BLOCK_8X8)) {
  const MACROBLOCKD *const xd = &x->e_mbd;
  int prune_sub_8x8;
  if (cpi->sf.part_sf.prune_sub_8x8_partition_level == 2) {
    prune_sub_8x8 = 1;
  } else {
    assert(cpi->sf.part_sf.prune_sub_8x8_partition_level == 1)((void) sizeof ((cpi->sf.part_sf.prune_sub_8x8_partition_level
 == 1) ? 1 : 0), __extension__ ({ if (cpi->sf.part_sf.prune_sub_8x8_partition_level
 == 1) ; else __assert_fail ("cpi->sf.part_sf.prune_sub_8x8_partition_level == 1"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1673, __extension__ __PRETTY_FUNCTION__); }));
    // Prune if both neighbors are available and either is > BLOCK_8X8
    prune_sub_8x8 = xd->left_available && xd->up_available &&
                    (xd->left_mbmi->bsize > BLOCK_8X8 ||
                     xd->above_mbmi->bsize > BLOCK_8X8);
  }
  if (prune_sub_8x8) {
    av1_disable_all_splits(part_state);
  }
}

// A CNN-based speed feature pruning out either split or all non-split
// partition in INTRA frame coding.
const int try_intra_cnn_based_part_prune =
    frame_is_intra_only(cm) &&
    cpi->sf.part_sf.intra_cnn_based_part_prune_level &&
    cm->seq_params->sb_size >= BLOCK_64X64 && bsize <= BLOCK_64X64 &&
    blk_params->bsize_at_least_8x8 &&
    av1_is_whole_blk_in_frame(blk_params, mi_params);

if (try_intra_cnn_based_part_prune) {
  intra_mode_cnn_partition(&cpi->common, x, x->part_search_info.quad_tree_idx,
                           cpi->sf.part_sf.intra_cnn_based_part_prune_level,
                           part_state);
}

// Use simple motion search to prune out split or non-split partitions. This
// must be done prior to PARTITION_SPLIT to propagate the initial mvs to a
// smaller blocksize.
const int try_split_only =
    cpi->sf.part_sf.simple_motion_search_split &&
    part_state->do_square_split && blk_params->bsize_at_least_8x8 &&
    av1_is_whole_blk_in_frame(blk_params, mi_params) &&
    !frame_is_intra_only(cm) && !av1_superres_scaled(cm);

if (try_split_only) {
  simple_motion_search_based_split(cpi, x, sms_tree, part_state);
}

// Use simple motion search to prune out rectangular partition in some
// direction. The results are stored in prune_horz and prune_vert in order to
// bypass future related pruning checks if a pruning decision has been made.

// We want to search at least one partition mode, so don't prune if NONE and
// SPLIT are disabled.
const int non_rect_part_allowed =
    part_state->do_square_split || part_state->partition_none_allowed;
// Only run the model if the partitions are not already pruned.
const int rect_part_allowed = part_state->do_rectangular_split &&
                              ((part_state->partition_rect_allowed[HORZ] &&
                                !part_state->prune_rect_part[HORZ]) ||
                               (part_state->partition_rect_allowed[VERT] &&
                                !part_state->prune_rect_part[VERT]));

const int try_prune_rect = cpi->sf.part_sf.simple_motion_search_prune_rect &&
                           !frame_is_intra_only(cm) &&
                           non_rect_part_allowed && rect_part_allowed &&
                           !av1_superres_scaled(cm);

if (try_prune_rect) {
  simple_motion_search_prune_rect(cpi, x, sms_tree, part_state);
}
1735}

1737#ifndef NDEBUG
1738static inline int is_bsize_square(BLOCK_SIZE bsize) {
return block_size_wide[bsize] == block_size_high[bsize];
1740}
1741#endif  // NDEBUG

1743void av1_prune_partitions_by_max_min_bsize(SuperBlockEnc *sb_enc,
                                         PartitionSearchState *part_state) {
assert(is_bsize_square(sb_enc->max_partition_size))((void) sizeof ((is_bsize_square(sb_enc->max_partition_size
)) ? 1 : 0), __extension__ ({ if (is_bsize_square(sb_enc->
max_partition_size)) ; else __assert_fail ("is_bsize_square(sb_enc->max_partition_size)"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1745, __extension__ __PRETTY_FUNCTION__); }));
assert(is_bsize_square(sb_enc->min_partition_size))((void) sizeof ((is_bsize_square(sb_enc->min_partition_size
)) ? 1 : 0), __extension__ ({ if (is_bsize_square(sb_enc->
min_partition_size)) ; else __assert_fail ("is_bsize_square(sb_enc->min_partition_size)"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1746, __extension__ __PRETTY_FUNCTION__); }));
assert(sb_enc->min_partition_size <= sb_enc->max_partition_size)((void) sizeof ((sb_enc->min_partition_size <= sb_enc->
max_partition_size) ? 1 : 0), __extension__ ({ if (sb_enc->
min_partition_size <= sb_enc->max_partition_size) ; else
 __assert_fail ("sb_enc->min_partition_size <= sb_enc->max_partition_size"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1747, __extension__ __PRETTY_FUNCTION__); }));
const PartitionBlkParams *blk_params = &part_state->part_blk_params;
const BLOCK_SIZE bsize = blk_params->bsize;
assert(is_bsize_square(bsize))((void) sizeof ((is_bsize_square(bsize)) ? 1 : 0), __extension__
 ({ if (is_bsize_square(bsize)) ; else __assert_fail ("is_bsize_square(bsize)"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1750, __extension__ __PRETTY_FUNCTION__); }));
const int max_partition_size_1d = block_size_wide[sb_enc->max_partition_size];
const int min_partition_size_1d = block_size_wide[sb_enc->min_partition_size];
const int bsize_1d = block_size_wide[bsize];
assert(min_partition_size_1d <= max_partition_size_1d)((void) sizeof ((min_partition_size_1d <= max_partition_size_1d
) ? 1 : 0), __extension__ ({ if (min_partition_size_1d <= max_partition_size_1d
) ; else __assert_fail ("min_partition_size_1d <= max_partition_size_1d"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1754, __extension__ __PRETTY_FUNCTION__); }));
const int is_le_min_sq_part = bsize_1d <= min_partition_size_1d;
const int is_gt_max_sq_part = bsize_1d > max_partition_size_1d;
if (is_gt_max_sq_part) {
  // If current block size is larger than max, only allow split.
  av1_set_square_split_only(part_state);
} else if (is_le_min_sq_part) {
  // If current block size is less or equal to min, only allow none if valid
  // block large enough; only allow split otherwise.
  av1_disable_rect_partitions(part_state);

  // only disable square split when current block is not at the picture
  // boundary. otherwise, inherit the square split flag from previous logic
  if (av1_blk_has_rows_and_cols(blk_params)) {
    part_state->do_square_split = 0;
  }
  part_state->partition_none_allowed = !(part_state->do_square_split);
}
1772}

1774// Decide whether to evaluate the AB partition specified by part_type based on
1775// split and HORZ/VERT info
1776static int evaluate_ab_partition_based_on_split(
  const PC_TREE *pc_tree, PARTITION_TYPE rect_part,
  const RD_RECT_PART_WIN_INFO *rect_part_win_info, int qindex, int split_idx1,
  int split_idx2) {
int num_win = 0;
// Threshold for number of winners
// Conservative pruning for high quantizers
const int num_win_thresh = AOMMIN(3 * (2 * (MAXQ - qindex) / MAXQ), 3)(((3 * (2 * (255 - qindex) / 255)) < (3)) ? (3 * (2 * (255
 - qindex) / 255)) : (3));
int sub_part_win =
    (rect_part_win_info == NULL((void*)0))    ? (pc_tree->partitioning == rect_part)
    : (rect_part == PARTITION_HORZ) ? rect_part_win_info->rect_part_win[HORZ]
                                    : rect_part_win_info->rect_part_win[VERT];
num_win += (sub_part_win) ? 1 : 0;
if (pc_tree->split[split_idx1]) {
  num_win +=
      (pc_tree->split[split_idx1]->partitioning == PARTITION_NONE) ? 1 : 0;
} else {
  num_win += 1;
}
if (pc_tree->split[split_idx2]) {
  num_win +=
      (pc_tree->split[split_idx2]->partitioning == PARTITION_NONE) ? 1 : 0;
} else {
  num_win += 1;
}
if (num_win < num_win_thresh) {
  return 0;
}
return 1;
1805}

1807void av1_prune_ab_partitions(AV1_COMP *cpi, const MACROBLOCK *x,
                           const PC_TREE *pc_tree, int pb_source_variance,
                           int64_t best_rdcost,
                           const RD_RECT_PART_WIN_INFO *rect_part_win_info,
                           bool_Bool ext_partition_allowed,
                           PartitionSearchState *part_state,
                           int *ab_partitions_allowed) {
int64_t *horz_rd = part_state->rect_part_rd[HORZ];
int64_t *vert_rd = part_state->rect_part_rd[VERT];
int64_t *split_rd = part_state->split_rd;
const PartitionCfg *const part_cfg = &cpi->oxcf.part_cfg;
// The standard AB partitions are allowed initially if ext-partition-types are
// allowed.
int horzab_partition_allowed = ext_partition_allowed &&
                               part_cfg->enable_ab_partitions &&
                               part_state->partition_rect_allowed[HORZ];
int vertab_partition_allowed = ext_partition_allowed &&
                               part_cfg->enable_ab_partitions &&
                               part_state->partition_rect_allowed[VERT];

// Pruning: pruning out AB partitions on one main direction based on the
// current best partition and source variance.
if (cpi->sf.part_sf.prune_ext_partition_types_search_level) {
  if (cpi->sf.part_sf.prune_ext_partition_types_search_level == 1) {
    // TODO(debargha,huisu@google.com): may need to tune the threshold for
    // pb_source_variance.
    horzab_partition_allowed &= (pc_tree->partitioning == PARTITION_HORZ ||
                                 (pc_tree->partitioning == PARTITION_NONE &&
                                  pb_source_variance < 32) ||
                                 pc_tree->partitioning == PARTITION_SPLIT);
    vertab_partition_allowed &= (pc_tree->partitioning == PARTITION_VERT ||
                                 (pc_tree->partitioning == PARTITION_NONE &&
                                  pb_source_variance < 32) ||
                                 pc_tree->partitioning == PARTITION_SPLIT);
  } else {
    horzab_partition_allowed &= (pc_tree->partitioning == PARTITION_HORZ ||
                                 pc_tree->partitioning == PARTITION_SPLIT);
    vertab_partition_allowed &= (pc_tree->partitioning == PARTITION_VERT ||
                                 pc_tree->partitioning == PARTITION_SPLIT);
  }
  horz_rd[0] = (horz_rd[0] < INT64_MAX(9223372036854775807L) ? horz_rd[0] : 0);
  horz_rd[1] = (horz_rd[1] < INT64_MAX(9223372036854775807L) ? horz_rd[1] : 0);
  vert_rd[0] = (vert_rd[0] < INT64_MAX(9223372036854775807L) ? vert_rd[0] : 0);
  vert_rd[1] = (vert_rd[1] < INT64_MAX(9223372036854775807L) ? vert_rd[1] : 0);
  split_rd[0] = (split_rd[0] < INT64_MAX(9223372036854775807L) ? split_rd[0] : 0);
  split_rd[1] = (split_rd[1] < INT64_MAX(9223372036854775807L) ? split_rd[1] : 0);
  split_rd[2] = (split_rd[2] < INT64_MAX(9223372036854775807L) ? split_rd[2] : 0);
  split_rd[3] = (split_rd[3] < INT64_MAX(9223372036854775807L) ? split_rd[3] : 0);
}

// Pruning: pruning out horz_a or horz_b if the combined rdcost of its
// subblocks estimated from previous partitions is much higher than the best
// rd so far.
ab_partitions_allowed[HORZ_A] = horzab_partition_allowed;
ab_partitions_allowed[HORZ_B] = horzab_partition_allowed;
if (cpi->sf.part_sf.prune_ext_partition_types_search_level) {
  const int64_t horz_a_rd = horz_rd[1] + split_rd[0] + split_rd[1];
  const int64_t horz_b_rd = horz_rd[0] + split_rd[2] + split_rd[3];
  switch (cpi->sf.part_sf.prune_ext_partition_types_search_level) {
    case 1:
      ab_partitions_allowed[HORZ_A] &= (horz_a_rd / 16 * 14 < best_rdcost);
      ab_partitions_allowed[HORZ_B] &= (horz_b_rd / 16 * 14 < best_rdcost);
      break;
    case 2:
    default:
      ab_partitions_allowed[HORZ_A] &= (horz_a_rd / 16 * 15 < best_rdcost);
      ab_partitions_allowed[HORZ_B] &= (horz_b_rd / 16 * 15 < best_rdcost);
      break;
  }
}

// Pruning: pruning out vert_a or vert_b if the combined rdcost of its
// subblocks estimated from previous partitions is much higher than the best
// rd so far.
ab_partitions_allowed[VERT_A] = vertab_partition_allowed;
ab_partitions_allowed[VERT_B] = vertab_partition_allowed;
if (cpi->sf.part_sf.prune_ext_partition_types_search_level) {
  const int64_t vert_a_rd = vert_rd[1] + split_rd[0] + split_rd[2];
  const int64_t vert_b_rd = vert_rd[0] + split_rd[1] + split_rd[3];
  switch (cpi->sf.part_sf.prune_ext_partition_types_search_level) {
    case 1:
      ab_partitions_allowed[VERT_A] &= (vert_a_rd / 16 * 14 < best_rdcost);
      ab_partitions_allowed[VERT_B] &= (vert_b_rd / 16 * 14 < best_rdcost);
      break;
    case 2:
    default:
      ab_partitions_allowed[VERT_A] &= (vert_a_rd / 16 * 15 < best_rdcost);
      ab_partitions_allowed[VERT_B] &= (vert_b_rd / 16 * 15 < best_rdcost);
      break;
  }
}

// Pruning: pruning out some ab partitions using a DNN taking rd costs of
// sub-blocks from previous basic partition types.
if (cpi->sf.part_sf.ml_prune_partition && ext_partition_allowed &&
    part_state->partition_rect_allowed[HORZ] &&
    part_state->partition_rect_allowed[VERT]) {
  // TODO(huisu@google.com): x->source_variance may not be the current
  // block's variance. The correct one to use is pb_source_variance. Need to
  // re-train the model to fix it.
  ml_prune_ab_partition(cpi, pc_tree->partitioning,
                        get_unsigned_bits(x->source_variance), best_rdcost,
                        part_state, ab_partitions_allowed);
}

// Pruning: pruning AB partitions based on the number of horz/vert wins
// in the current block and sub-blocks in PARTITION_SPLIT.
if (cpi->sf.part_sf.prune_ext_part_using_split_info >= 2 &&
    ab_partitions_allowed[HORZ_A]) {
  ab_partitions_allowed[HORZ_A] &= evaluate_ab_partition_based_on_split(
      pc_tree, PARTITION_HORZ, rect_part_win_info, x->qindex, 0, 1);
}
if (cpi->sf.part_sf.prune_ext_part_using_split_info >= 2 &&
    ab_partitions_allowed[HORZ_B]) {
  ab_partitions_allowed[HORZ_B] &= evaluate_ab_partition_based_on_split(
      pc_tree, PARTITION_HORZ, rect_part_win_info, x->qindex, 2, 3);
}
if (cpi->sf.part_sf.prune_ext_part_using_split_info >= 2 &&
    ab_partitions_allowed[VERT_A]) {
  ab_partitions_allowed[VERT_A] &= evaluate_ab_partition_based_on_split(
      pc_tree, PARTITION_VERT, rect_part_win_info, x->qindex, 0, 2);
}
if (cpi->sf.part_sf.prune_ext_part_using_split_info >= 2 &&
    ab_partitions_allowed[VERT_B]) {
  ab_partitions_allowed[VERT_B] &= evaluate_ab_partition_based_on_split(
      pc_tree, PARTITION_VERT, rect_part_win_info, x->qindex, 1, 3);
}
1934}

1936// Prepare features for the external model. Specifically, features after
1937// ab partition is searched.
1938static void prepare_features_after_part_ab(
  const AV1_COMP *const cpi, MACROBLOCK *const x, BLOCK_SIZE bsize,
  int part_ctx, int64_t best_rd,
  int64_t rect_part_rd[NUM_RECT_PARTS][SUB_PARTITIONS_RECT2],
  int64_t split_rd[SUB_PARTITIONS_SPLIT4], unsigned int pb_source_variance,
  int mi_row, int mi_col, aom_partition_features_t *const features) {
int64_t *horz_rd = rect_part_rd[HORZ];
int64_t *vert_rd = rect_part_rd[VERT];

// Generate features.
int feature_index = 0;
features->after_part_ab.f[feature_index++] = (float)part_ctx;
features->after_part_ab.f[feature_index++] =
    (float)get_unsigned_bits(pb_source_variance);

const int rdcost = (int)AOMMIN(INT_MAX, best_rd)(((2147483647) < (best_rd)) ? (2147483647) : (best_rd));
int sub_block_rdcost[8] = { 0 };
int rd_index = 0;
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  if (horz_rd[i] > 0 && horz_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)horz_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_RECT2; ++i) {
  if (vert_rd[i] > 0 && vert_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)vert_rd[i];
  ++rd_index;
}
for (int i = 0; i < SUB_PARTITIONS_SPLIT4; ++i) {
  if (split_rd[i] > 0 && split_rd[i] < 1000000000)
    sub_block_rdcost[rd_index] = (int)split_rd[i];
  ++rd_index;
}
for (int i = 0; i < 8; ++i) {
  // Ratio between the sub-block RD and the whole-block RD.
  float rd_ratio = 1.0f;
  if (sub_block_rdcost[i] > 0 && sub_block_rdcost[i] < rdcost)
    rd_ratio = (float)sub_block_rdcost[i] / (float)rdcost;
  features->after_part_ab.f[feature_index++] = rd_ratio;
}

// 4-way partitions are only allowed for these three square block sizes.
assert(bsize == BLOCK_16X16 || bsize == BLOCK_32X32 || bsize == BLOCK_64X64)((void) sizeof ((bsize == BLOCK_16X16 || bsize == BLOCK_32X32
 || bsize == BLOCK_64X64) ? 1 : 0), __extension__ ({ if (bsize
 == BLOCK_16X16 || bsize == BLOCK_32X32 || bsize == BLOCK_64X64
) ; else __assert_fail ("bsize == BLOCK_16X16 || bsize == BLOCK_32X32 || bsize == BLOCK_64X64"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1980, __extension__ __PRETTY_FUNCTION__); }));

// Get variance of the 1:4 and 4:1 sub-blocks.
unsigned int horz_4_source_var[SUB_PARTITIONS_PART44] = { 0 };
unsigned int vert_4_source_var[SUB_PARTITIONS_PART44] = { 0 };
{
  BLOCK_SIZE horz_4_bs = get_partition_subsize(bsize, PARTITION_HORZ_4);
  BLOCK_SIZE vert_4_bs = get_partition_subsize(bsize, PARTITION_VERT_4);

  assert(horz_4_bs != BLOCK_INVALID)((void) sizeof ((horz_4_bs != BLOCK_INVALID) ? 1 : 0), __extension__
 ({ if (horz_4_bs != BLOCK_INVALID) ; else __assert_fail ("horz_4_bs != BLOCK_INVALID"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1989, __extension__ __PRETTY_FUNCTION__); }));
  assert(vert_4_bs != BLOCK_INVALID)((void) sizeof ((vert_4_bs != BLOCK_INVALID) ? 1 : 0), __extension__
 ({ if (vert_4_bs != BLOCK_INVALID) ; else __assert_fail ("vert_4_bs != BLOCK_INVALID"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 1990, __extension__ __PRETTY_FUNCTION__); }));

  av1_setup_src_planes(x, cpi->source, mi_row, mi_col,
                       av1_num_planes(&cpi->common), bsize);
  const int src_stride = x->plane[0].src.stride;
  uint8_t *src = x->plane[0].src.buf;
  const MACROBLOCKD *const xd = &x->e_mbd;

  struct buf_2d horz_4_src, vert_4_src;
  horz_4_src.stride = src_stride;
  vert_4_src.stride = src_stride;

  for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
    horz_4_src.buf = src + i * block_size_high[horz_4_bs] * src_stride;
    vert_4_src.buf = src + i * block_size_wide[vert_4_bs];

    horz_4_source_var[i] = av1_get_perpixel_variance_facade(
        cpi, xd, &horz_4_src, horz_4_bs, AOM_PLANE_Y0);
    vert_4_source_var[i] = av1_get_perpixel_variance_facade(
        cpi, xd, &vert_4_src, vert_4_bs, AOM_PLANE_Y0);
  }
}

const float denom = (float)(pb_source_variance + 1);
const float low_b = 0.1f;
const float high_b = 10.0f;
for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
  // Ratio between the 4:1 sub-block variance and the whole-block variance.
  float var_ratio = (float)(horz_4_source_var[i] + 1) / denom;
  if (var_ratio < low_b) var_ratio = low_b;
  if (var_ratio > high_b) var_ratio = high_b;
  features->after_part_ab.f[feature_index++] = var_ratio;
}
for (int i = 0; i < SUB_PARTITIONS_PART44; ++i) {
  // Ratio between the 1:4 sub-block RD and the whole-block RD.
  float var_ratio = (float)(vert_4_source_var[i] + 1) / denom;
  if (var_ratio < low_b) var_ratio = low_b;
  if (var_ratio > high_b) var_ratio = high_b;
  features->after_part_ab.f[feature_index++] = var_ratio;
}
assert(feature_index == 18)((void) sizeof ((feature_index == 18) ? 1 : 0), __extension__
 ({ if (feature_index == 18) ; else __assert_fail ("feature_index == 18"
, "/root/firefox-clang/third_party/aom/av1/encoder/partition_strategy.c"
, 2030, __extension__ __PRETTY_FUNCTION__); }));
2031}

2033// If the external partition model is used, we let it determine partition
2034// decisions before partition none. Specifically, these parameters:
2035// partition_none_allowed
2036// partition_horz_allowed
2037// partition_vert_allowed
2038// do_rectangular_split
2039// do_square_split
2040static bool_Bool ext_ml_model_decision_before_none(
  AV1_COMP *cpi, const float features_from_motion[FEATURE_SIZE_SMS_SPLIT17],
  int *partition_none_allowed, int *partition_horz_allowed,
  int *partition_vert_allowed, int *do_rectangular_split,
  int *do_square_split) {
ExtPartController *const ext_part_controller = &cpi->ext_part_controller;
if (!ext_part_controller->ready) return false0;

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_BEFORE_NONE;
for (int i = 0; i < FEATURE_SIZE_SMS_SPLIT17; ++i) {
  features.before_part_none.f[i] = features_from_motion[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*partition_none_allowed = decision.partition_none_allowed;
*partition_horz_allowed = decision.partition_rect_allowed[HORZ];
*partition_vert_allowed = decision.partition_rect_allowed[VERT];
*do_rectangular_split = decision.do_rectangular_split;
*do_square_split = decision.do_square_split;

return true1;
2072}

2074// If the external partition model is used, we let it determine partition
2075// decisions before partition none. Specifically, these parameters:
2076// prune_horz
2077// prune_vert
2078static bool_Bool ext_ml_model_decision_before_none_part2(
  AV1_COMP *cpi,
  const float features_from_motion[FEATURE_SIZE_SMS_PRUNE_PART25],
  int *prune_horz, int *prune_vert) {
ExtPartController *const ext_part_controller = &cpi->ext_part_controller;
if (!ext_part_controller->ready) return false0;

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_BEFORE_NONE_PART2;
for (int i = 0; i < FEATURE_SIZE_SMS_PRUNE_PART25; ++i) {
  features.before_part_none.f_part2[i] = features_from_motion[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*prune_horz = decision.prune_rect_part[HORZ];
*prune_vert = decision.prune_rect_part[VERT];

return true1;
2106}

2108// If the external partition model is used, we let it determine partition
2109// decisions after none partition. Specifically, these parameters:
2110// do_square_split
2111// do_rectangular_split
2112bool_Bool ext_ml_model_decision_after_none(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_after_none, int *do_square_split,
  int *do_rectangular_split) {
if (!ext_part_controller->ready || is_intra_frame) return false0;

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_AFTER_NONE;
for (int i = 0; i < 4; ++i) {
  features.after_part_none.f[i] = features_after_none[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*do_square_split = decision.do_square_split;
*do_rectangular_split = decision.do_rectangular_split;

return true1;
2139}

2141// If the external partition model is used, we let it determine partition
2142// decisions after none partition. Specifically, these parameters:
2143// terminate_partition_search
2144bool_Bool ext_ml_model_decision_after_none_part2(
  AV1_COMP *const cpi, const float *const features_terminate,
  int *terminate_partition_search) {
AV1_COMMON *const cm = &cpi->common;
ExtPartController *const ext_part_controller = &cpi->ext_part_controller;
if (!ext_part_controller->ready || frame_is_intra_only(cm)) return false0;

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_AFTER_NONE_PART2;
for (int i = 0; i < FEATURE_SIZE_SMS_TERM_NONE28; ++i) {
  features.after_part_none.f_terminate[i] = features_terminate[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*terminate_partition_search = decision.terminate_partition_search;

return true1;
2171}

2173// If the external partition model is used, we let it determine partition
2174// decisions after none partition. Specifically, these parameters:
2175// terminate_partition_search
2176bool_Bool ext_ml_model_decision_after_split(AV1_COMP *const cpi,
                                     const float *const features_terminate,
                                     int *terminate_partition_search) {
const AV1_COMMON *const cm = &cpi->common;
ExtPartController *const ext_part_controller = &cpi->ext_part_controller;
if (frame_is_intra_only(cm) || !cpi->ext_part_controller.ready) {
  return false0;
}

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_AFTER_SPLIT;
for (int i = 0; i < 31; ++i) {
  features.after_part_split.f_terminate[i] = features_terminate[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*terminate_partition_search = decision.terminate_partition_search;

return true1;
2205}

2207// If the external partition model is used, we let it determine partition
2208// decisions after none partition. Specifically, these parameters:
2209// prune_rect_part[HORZ]
2210// prune_rect_part[VERT]
2211bool_Bool ext_ml_model_decision_after_split_part2(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_prune, int *prune_rect_part_horz,
  int *prune_rect_part_vert) {
if (is_intra_frame || !ext_part_controller->ready) {
  return false0;
}

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_AFTER_SPLIT_PART2;
for (int i = 0; i < 9; ++i) {
  features.after_part_split.f_prune_rect[i] = features_prune[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*prune_rect_part_horz = decision.prune_rect_part[0];
*prune_rect_part_vert = decision.prune_rect_part[1];

return true1;
2240}

2242// If the external partition model is used, we let it determine partition
2243// decisions after rectangular partition. Specifically, these parameters:
2244// horza_partition_allowed
2245// horzb_partition_allowed
2246// verta_partition_allowed
2247// vertb_partition_allowed
2248static bool_Bool ext_ml_model_decision_after_rect(
  ExtPartController *const ext_part_controller, const int is_intra_frame,
  const float *const features_after_rect, int *horza_partition_allowed,
  int *horzb_partition_allowed, int *verta_partition_allowed,
  int *vertb_partition_allowed) {
if (is_intra_frame || !ext_part_controller->ready) return false0;

// Setup features.
aom_partition_features_t features;
features.id = AOM_EXT_PART_FEATURE_AFTER_RECT;
for (int i = 0; i < 10; ++i) {
  features.after_part_rect.f[i] = features_after_rect[i];
}

// Send necessary features to the external model.
av1_ext_part_send_features(ext_part_controller, &features);

// Get partition decisions from the external model.
aom_partition_decision_t decision;
const bool_Bool valid_decision =
    av1_ext_part_get_partition_decision(ext_part_controller, &decision);
if (!valid_decision) return false0;

// Populate decisions
*horza_partition_allowed = decision.horza_partition_allowed;
*horzb_partition_allowed = decision.horzb_partition_allowed;
*verta_partition_allowed = decision.verta_partition_allowed;
*vertb_partition_allowed = decision.vertb_partition_allowed;

return true1;
2278}

2280// If the external partition model is used, we let it determine partition
2281// decisions after AB partition. Specifically, these parameters:
2282// partition_vert4_allowed
2283// partition_horz4_allowed
2284static bool_Bool ext_ml_model_decision_after_part_ab(
  AV1_COMP *const cpi, MACROBLOCK *const x, BLOCK_SIZE bsize, int part_ctx,
  int64_t best_rd, int64_t rect_part_rd[NUM_RECT_PARTS][SUB_PARTITIONS_RECT2],
  int64_t split_rd[SUB_PARTITIONS_SPLIT4], int *const partition_horz4_allowed,
  int *const partition_vert4_allowed, unsigned int pb_source_variance,
  int mi_row, int mi_col) {
const AV1_COMMON *const cm = &cpi->common;
ExtPartController *const ext_part_controller = &cpi->ext_part_controller;

if (!frame_is_intra_only(cm) && ext_part_controller->ready) {
  // Setup features.
  aom_partition_features_t features;
  features.id = AOM_EXT_PART_FEATURE_AFTER_AB;
  prepare_features_after_part_ab(cpi, x, bsize, part_ctx, best_rd,
                                 rect_part_rd, split_rd, pb_source_variance,
                                 mi_row, mi_col, &features);

  // Send necessary features to the external model.
  av1_ext_part_send_features(ext_part_controller, &features);

  // Get partition decisions from the external model.
  aom_partition_decision_t decision;
  const bool_Bool valid_decision =
      av1_ext_part_get_partition_decision(ext_part_controller, &decision);
  if (!valid_decision) return false0;

  // Populate decisions
  *partition_horz4_allowed = decision.partition_horz4_allowed;
  *partition_vert4_allowed = decision.partition_vert4_allowed;

  return true1;
}

return false0;
2318}

2320// This function resembles "av1_setup_sms_tree()" in context_tree.c
2321// with function signature change.
2322static SIMPLE_MOTION_DATA_TREE *setup_sms_tree(
  AV1_COMP *const cpi, SIMPLE_MOTION_DATA_TREE *sms_tree) {
AV1_COMMON *const cm = &cpi->common;
const int stat_generation_stage = is_stat_generation_stage(cpi);
const int is_sb_size_128 = cm->seq_params->sb_size == BLOCK_128X128;
const int tree_nodes =
    av1_get_pc_tree_nodes(is_sb_size_128, stat_generation_stage);
int sms_tree_index = 0;
SIMPLE_MOTION_DATA_TREE *this_sms;
int square_index = 1;
int nodes;
this_sms = &sms_tree[0];

if (!stat_generation_stage) {
  const int leaf_factor = is_sb_size_128 ? 4 : 1;
  const int leaf_nodes = 256 * leaf_factor;

  // Sets up all the leaf nodes in the tree.
  for (sms_tree_index = 0; sms_tree_index < leaf_nodes; ++sms_tree_index) {
    SIMPLE_MOTION_DATA_TREE *const tree = &sms_tree[sms_tree_index];
    tree->block_size = square[0];
  }

  // Each node has 4 leaf nodes, fill each block_size level of the tree
  // from leafs to the root.
  for (nodes = leaf_nodes >> 2; nodes > 0; nodes >>= 2) {
    for (int i = 0; i < nodes; ++i) {
      SIMPLE_MOTION_DATA_TREE *const tree = &sms_tree[sms_tree_index];
      tree->block_size = square[square_index];
      for (int j = 0; j < 4; j++) tree->split[j] = this_sms++;
      ++sms_tree_index;
    }
    ++square_index;
  }
} else {
  // Allocation for firstpass/LAP stage
  // TODO(Mufaddal): refactor square_index to use a common block_size macro
  // from firstpass.c
  SIMPLE_MOTION_DATA_TREE *const tree = &sms_tree[sms_tree_index];
  square_index = 2;
  tree->block_size = square[square_index];
}

// Set up the root node for the largest superblock size
return &sms_tree[tree_nodes - 1];
2367}

2369static void write_motion_feature_to_file(
  const char *const path, const int sb_counter, const unsigned int *block_sse,
  const unsigned int *block_var, const int num_blocks, const BLOCK_SIZE bsize,
  const BLOCK_SIZE fixed_block_size, const int mi_row, const int mi_col) {
char filename[256];
snprintf(filename, sizeof(filename), "%s/motion_search_feature_sb%d", path,
         sb_counter);
FILE *pfile = fopen(filename, "w");
23
←
Assuming pointer value is null→
24
←
Assuming that 'fopen' fails→
25
←
'pfile' initialized here→
fprintf(pfile, "%d,%d,%d,%d,%d\n", mi_row, mi_col, bsize,
26
←
Null pointer passed to 1st parameter expecting 'nonnull'
        block_size_wide[fixed_block_size], num_blocks);
for (int i = 0; i < num_blocks; ++i) {
  fprintf(pfile, "%d", block_sse[i]);
  if (i < num_blocks - 1) fprintf(pfile, ",");
}
fprintf(pfile, "\n");
for (int i = 0; i < num_blocks; ++i) {
  fprintf(pfile, "%d", block_var[i]);
  if (i < num_blocks - 1) fprintf(pfile, ",");
}
fprintf(pfile, "\n");
fclose(pfile);
2390}

2392void av1_collect_motion_search_features_sb(AV1_COMP *const cpi, ThreadData *td,
                                         TileDataEnc *tile_data,
                                         const int mi_row, const int mi_col,
                                         const BLOCK_SIZE bsize,
                                         aom_partition_features_t *features) {
const AV1_COMMON *const cm = &cpi->common;
if (frame_is_intra_only(cm)) return;
1
Taking false branch→

MACROBLOCK *const x = &td->mb;
const BLOCK_SIZE fixed_block_size = BLOCK_16X16;
const int col_step = mi_size_wide[fixed_block_size];
const int row_step = mi_size_high[fixed_block_size];
SIMPLE_MOTION_DATA_TREE *sms_tree = NULL((void*)0);
const int stat_generation_stage = is_stat_generation_stage(cpi);
const int is_sb_size_128 = cm->seq_params->sb_size == BLOCK_128X128;
2
←
Assuming field 'sb_size' is not equal to BLOCK_128X128→
const int tree_nodes =
    av1_get_pc_tree_nodes(is_sb_size_128, stat_generation_stage);
CHECK_MEM_ERROR(cm, sms_tree, aom_calloc(tree_nodes, sizeof(*sms_tree)))do { sms_tree = (aom_calloc(tree_nodes, sizeof(*sms_tree))); if
 (!sms_tree) aom_internal_error((cm)->error, AOM_CODEC_MEM_ERROR
, "Failed to allocate " "sms_tree"); } while (0);
3
←
Assuming 'sms_tree' is non-null→
4
←
Taking false branch→
5
←
Loop condition is false.  Exiting loop→
SIMPLE_MOTION_DATA_TREE *sms_root = setup_sms_tree(cpi, sms_tree);
TileInfo *const tile_info = &tile_data->tile_info;
av1_set_offsets_without_segment_id(cpi, tile_info, x, mi_row, mi_col, bsize);
av1_init_simple_motion_search_mvs_for_sb(cpi, NULL((void*)0), x, sms_root, mi_row,
                                         mi_col);
av1_reset_simple_motion_tree_partition(sms_root, bsize);
const int ref_list[] = { cpi->rc.is_src_frame_alt_ref5.1
Field 'is_src_frame_alt_ref' is 0
 ? ALTREF_FRAME
6
←
'?' condition is false→
                                                      : LAST_FRAME };
const int mi_width =
    AOMMIN(mi_size_wide[bsize], cm->mi_params.mi_cols - mi_col)(((mi_size_wide[bsize]) < (cm->mi_params.mi_cols - mi_col
)) ? (mi_size_wide[bsize]) : (cm->mi_params.mi_cols - mi_col
));
7
←
Assuming the condition is true→
8
←
'?' condition is true→
const int mi_height =
    AOMMIN(mi_size_high[bsize], cm->mi_params.mi_rows - mi_row)(((mi_size_high[bsize]) < (cm->mi_params.mi_rows - mi_row
)) ? (mi_size_high[bsize]) : (cm->mi_params.mi_rows - mi_row
));
9
←
Assuming the condition is true→
10
←
'?' condition is true→
const int col_steps = (mi_width / col_step) + ((mi_width % col_step) > 0);
11
←
Assuming the condition is false→
const int row_steps = (mi_height / row_step) + ((mi_height % row_step) > 0);
12
←
Assuming the condition is false→
const int num_blocks = col_steps * row_steps;
unsigned int *block_sse = aom_calloc(num_blocks, sizeof(*block_sse));
unsigned int *block_var = aom_calloc(num_blocks, sizeof(*block_var));
if (!(block_sse && block_var)) {
13
←
Assuming 'block_sse' is non-null→
14
←
Assuming the condition is false→
15
←
Taking false branch→
  aom_free(sms_tree);
  aom_free(block_sse);
  aom_free(block_var);
  aom_internal_error(cm->error, AOM_CODEC_MEM_ERROR,
                     "Error allocating block_sse & block_var");
}
int idx = 0;

for (int row = mi_row;
19
←
Loop condition is false. Execution continues on line 2449→
     row < AOMMIN(mi_row + mi_size_high[bsize], cm->mi_params.mi_rows)(((mi_row + mi_size_high[bsize]) < (cm->mi_params.mi_rows
)) ? (mi_row + mi_size_high[bsize]) : (cm->mi_params.mi_rows
));
16
←
Assuming the condition is false→
17
←
'?' condition is false→
18
←
Assuming the condition is false→
     row += row_step) {
  for (int col = mi_col;
       col < AOMMIN(mi_col + mi_size_wide[bsize], cm->mi_params.mi_cols)(((mi_col + mi_size_wide[bsize]) < (cm->mi_params.mi_cols
)) ? (mi_col + mi_size_wide[bsize]) : (cm->mi_params.mi_cols
));
       col += col_step) {
    simple_motion_search_get_best_ref(
        cpi, x, sms_root, row, col, fixed_block_size, ref_list,
        /*num_refs=*/1, /*use_subpixel=*/1,
        /*save_mv=*/1, &block_sse[idx], &block_var[idx]);
    ++idx;
  }
}
if (features == NULL((void*)0)) {
20
←
Assuming 'features' is equal to NULL→
21
←
Taking true branch→
  write_motion_feature_to_file(cpi->oxcf.partition_info_path, cpi->sb_counter,
22
←
Calling 'write_motion_feature_to_file'→
                               block_sse, block_var, idx, bsize,
                               fixed_block_size, mi_row, mi_col);
} else {
  features->sb_features.motion_features.unit_length =
      block_size_wide[fixed_block_size];
  features->sb_features.motion_features.num_units = idx;
  for (int i = 0; i < idx; ++i) {
    features->sb_features.motion_features.block_sse[i] = block_sse[i];
    features->sb_features.motion_features.block_var[i] = block_var[i];
  }
}

aom_free(block_sse);
aom_free(block_var);
aom_free(sms_tree);
2466}

2468#if CONFIG_PARTITION_SEARCH_ORDER0
2469void av1_prepare_motion_search_features_block(
  AV1_COMP *const cpi, ThreadData *td, TileDataEnc *tile_data,
  const int mi_row, const int mi_col, const BLOCK_SIZE bsize,
  const int valid_partition_types, unsigned int *block_sse,
  unsigned int *block_var, unsigned int sub_block_sse[4],
  unsigned int sub_block_var[4], unsigned int horz_block_sse[2],
  unsigned int horz_block_var[2], unsigned int vert_block_sse[2],
  unsigned int vert_block_var[2]) {
const AV1_COMMON *const cm = &cpi->common;
if (frame_is_intra_only(cm)) return;
MACROBLOCK *const x = &td->mb;
SIMPLE_MOTION_DATA_TREE *sms_tree = NULL((void*)0);
const int stat_generation_stage = is_stat_generation_stage(cpi);
const int is_sb_size_128 = cm->seq_params->sb_size == BLOCK_128X128;
const int tree_nodes =
    av1_get_pc_tree_nodes(is_sb_size_128, stat_generation_stage);
CHECK_MEM_ERROR(cm, sms_tree, aom_calloc(tree_nodes, sizeof(*sms_tree)))do { sms_tree = (aom_calloc(tree_nodes, sizeof(*sms_tree))); if
 (!sms_tree) aom_internal_error((cm)->error, AOM_CODEC_MEM_ERROR
, "Failed to allocate " "sms_tree"); } while (0);
SIMPLE_MOTION_DATA_TREE *sms_root = setup_sms_tree(cpi, sms_tree);
TileInfo *const tile_info = &tile_data->tile_info;
av1_set_offsets_without_segment_id(cpi, tile_info, x, mi_row, mi_col, bsize);
av1_reset_simple_motion_tree_partition(sms_root, bsize);
const int ref_list[] = { cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME
                                                      : LAST_FRAME };
const int sub_mi_width = mi_size_wide[bsize] / 2;
const int sub_mi_height = sub_mi_width;
simple_motion_search_get_best_ref(
    cpi, x, sms_root, mi_row, mi_col, bsize, ref_list, /*num_refs=*/1,
    /*use_subpixel=*/1, /*save_mv=*/1, block_sse, block_var);
// Split to 4 sub blocks.
if (valid_partition_types & (1 << PARTITION_SPLIT)) {
  const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_SPLIT);
  for (int i = 0; i < 4; ++i) {
    const int row = mi_row + (i >> 1) * sub_mi_height;
    const int col = mi_col + (i & 1) * sub_mi_width;
    simple_motion_search_get_best_ref(cpi, x, sms_root, row, col, subsize,
                                      ref_list, /*num_refs=*/1,
                                      /*use_subpixel=*/1, /*save_mv=*/1,
                                      &sub_block_sse[i], &sub_block_var[i]);
  }
}
// Horizontal split
if (valid_partition_types & (1 << PARTITION_HORZ)) {
  const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_HORZ);
  for (int i = 0; i < 2; ++i) {
    const int row = mi_row + (i & 1) * sub_mi_height;
    const int col = mi_col;
    simple_motion_search_get_best_ref(cpi, x, sms_root, row, col, subsize,
                                      ref_list, /*num_refs=*/1,
                                      /*use_subpixel=*/1, /*save_mv=*/1,
                                      &horz_block_sse[i], &horz_block_var[i]);
  }
}
// Vertical split
if (valid_partition_types & (1 << PARTITION_VERT)) {
  const BLOCK_SIZE subsize = get_partition_subsize(bsize, PARTITION_VERT);
  for (int i = 0; i < 2; ++i) {
    const int row = mi_row;
    const int col = mi_col + (i & 1) * sub_mi_width;
    simple_motion_search_get_best_ref(cpi, x, sms_root, row, col, subsize,
                                      ref_list, /*num_refs=*/1,
                                      /*use_subpixel=*/1, /*save_mv=*/1,
                                      &vert_block_sse[i], &vert_block_var[i]);
  }
}

aom_free(sms_tree);
2535}
2536#endif  // CONFIG_PARTITION_SEARCH_ORDER
2537#endif  // !CONFIG_REALTIME_ONLY

2539static inline void init_simple_motion_search_mvs(
  SIMPLE_MOTION_DATA_TREE *sms_tree, const FULLPEL_MV *start_mvs) {
memcpy(sms_tree->start_mvs, start_mvs, sizeof(sms_tree->start_mvs));
av1_zero(sms_tree->sms_none_feat)memset(&(sms_tree->sms_none_feat), 0, sizeof(sms_tree->
sms_none_feat));
av1_zero(sms_tree->sms_rect_feat)memset(&(sms_tree->sms_rect_feat), 0, sizeof(sms_tree->
sms_rect_feat));
av1_zero(sms_tree->sms_none_valid)memset(&(sms_tree->sms_none_valid), 0, sizeof(sms_tree
->sms_none_valid));
av1_zero(sms_tree->sms_rect_valid)memset(&(sms_tree->sms_rect_valid), 0, sizeof(sms_tree
->sms_rect_valid));

if (sms_tree->block_size >= BLOCK_8X8) {
  init_simple_motion_search_mvs(sms_tree->split[0], start_mvs);
  init_simple_motion_search_mvs(sms_tree->split[1], start_mvs);
  init_simple_motion_search_mvs(sms_tree->split[2], start_mvs);
  init_simple_motion_search_mvs(sms_tree->split[3], start_mvs);
}
2553}

2555void av1_init_simple_motion_search_mvs_for_sb(const AV1_COMP *cpi,
                                            const TileInfo *tile_info,
                                            MACROBLOCK *x,
                                            SIMPLE_MOTION_DATA_TREE *sms_root,
                                            int mi_row, int mi_col) {
// Use the NEARESTMV of the sb as the start mv
const AV1_COMMON *cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
FULLPEL_MV ref_mvs[REF_FRAMES];
const BLOCK_SIZE sb_size = cm->seq_params->sb_size;
av1_zero(ref_mvs)memset(&(ref_mvs), 0, sizeof(ref_mvs));
// If tile_info is NULL, assume that the offsets have already been set.
if (tile_info) {
  av1_set_offsets_without_segment_id(cpi, tile_info, x, mi_row, mi_col,
                                     sb_size);
}

MB_MODE_INFO_EXT mbmi_ext;
const int ref_frame =
    cpi->rc.is_src_frame_alt_ref ? ALTREF_FRAME : LAST_FRAME;
av1_find_mv_refs(cm, xd, xd->mi[0], ref_frame, mbmi_ext.ref_mv_count,
                 xd->ref_mv_stack, xd->weight, NULL((void*)0), mbmi_ext.global_mvs,
                 mbmi_ext.mode_context);
if (mbmi_ext.ref_mv_count[ref_frame] > 0) {
  ref_mvs[ref_frame] =
      get_fullmv_from_mv(&xd->ref_mv_stack[ref_frame][0].this_mv.as_mv);
} else {
  ref_mvs[ref_frame] =
      get_fullmv_from_mv(&mbmi_ext.global_mvs[ref_frame].as_mv);
}

init_simple_motion_search_mvs(sms_root, ref_mvs);
2587}