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alloccommon.c (19421B)


      1 /*
      2 *
      3 * Copyright (c) 2016, Alliance for Open Media. All rights reserved.
      4 *
      5 * This source code is subject to the terms of the BSD 2 Clause License and
      6 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
      7 * was not distributed with this source code in the LICENSE file, you can
      8 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
      9 * Media Patent License 1.0 was not distributed with this source code in the
     10 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
     11 */
     12 
     13 #include "config/aom_config.h"
     14 
     15 #include "aom_mem/aom_mem.h"
     16 #include "aom_scale/yv12config.h"
     17 #include "aom_util/aom_pthread.h"
     18 
     19 #include "av1/common/alloccommon.h"
     20 #include "av1/common/av1_common_int.h"
     21 #include "av1/common/blockd.h"
     22 #include "av1/common/cdef_block.h"
     23 #include "av1/common/entropymode.h"
     24 #include "av1/common/entropymv.h"
     25 #include "av1/common/enums.h"
     26 #include "av1/common/restoration.h"
     27 #include "av1/common/thread_common.h"
     28 
     29 int av1_get_MBs(int width, int height) {
     30  const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
     31  const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
     32  const int mi_cols = aligned_width >> MI_SIZE_LOG2;
     33  const int mi_rows = aligned_height >> MI_SIZE_LOG2;
     34 
     35  const int mb_cols = ROUND_POWER_OF_TWO(mi_cols, 2);
     36  const int mb_rows = ROUND_POWER_OF_TWO(mi_rows, 2);
     37  return mb_rows * mb_cols;
     38 }
     39 
     40 void av1_free_ref_frame_buffers(BufferPool *pool) {
     41  int i;
     42 
     43  for (i = 0; i < pool->num_frame_bufs; ++i) {
     44    if (pool->frame_bufs[i].ref_count > 0 &&
     45        pool->frame_bufs[i].raw_frame_buffer.data != NULL) {
     46      pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer);
     47      pool->frame_bufs[i].raw_frame_buffer.data = NULL;
     48      pool->frame_bufs[i].raw_frame_buffer.size = 0;
     49      pool->frame_bufs[i].raw_frame_buffer.priv = NULL;
     50      pool->frame_bufs[i].ref_count = 0;
     51    }
     52    aom_free(pool->frame_bufs[i].mvs);
     53    pool->frame_bufs[i].mvs = NULL;
     54    aom_free(pool->frame_bufs[i].seg_map);
     55    pool->frame_bufs[i].seg_map = NULL;
     56    aom_free_frame_buffer(&pool->frame_bufs[i].buf);
     57  }
     58  aom_free(pool->frame_bufs);
     59  pool->frame_bufs = NULL;
     60  pool->num_frame_bufs = 0;
     61 }
     62 
     63 static inline void free_cdef_linebuf_conditional(
     64    AV1_COMMON *const cm, const size_t *new_linebuf_size) {
     65  CdefInfo *cdef_info = &cm->cdef_info;
     66  for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     67    if (new_linebuf_size[plane] != cdef_info->allocated_linebuf_size[plane]) {
     68      aom_free(cdef_info->linebuf[plane]);
     69      cdef_info->linebuf[plane] = NULL;
     70    }
     71  }
     72 }
     73 
     74 static inline void free_cdef_bufs_conditional(AV1_COMMON *const cm,
     75                                              uint16_t **colbuf,
     76                                              uint16_t **srcbuf,
     77                                              const size_t *new_colbuf_size,
     78                                              const size_t new_srcbuf_size) {
     79  CdefInfo *cdef_info = &cm->cdef_info;
     80  if (new_srcbuf_size != cdef_info->allocated_srcbuf_size) {
     81    aom_free(*srcbuf);
     82    *srcbuf = NULL;
     83  }
     84  for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     85    if (new_colbuf_size[plane] != cdef_info->allocated_colbuf_size[plane]) {
     86      aom_free(colbuf[plane]);
     87      colbuf[plane] = NULL;
     88    }
     89  }
     90 }
     91 
     92 static inline void free_cdef_bufs(uint16_t **colbuf, uint16_t **srcbuf) {
     93  aom_free(*srcbuf);
     94  *srcbuf = NULL;
     95  for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     96    aom_free(colbuf[plane]);
     97    colbuf[plane] = NULL;
     98  }
     99 }
    100 
    101 static inline void free_cdef_row_sync(AV1CdefRowSync **cdef_row_mt,
    102                                      const int num_mi_rows) {
    103  if (*cdef_row_mt == NULL) return;
    104 #if CONFIG_MULTITHREAD
    105  for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
    106    if ((*cdef_row_mt)[row_idx].row_mutex_ != NULL) {
    107      pthread_mutex_destroy((*cdef_row_mt)[row_idx].row_mutex_);
    108      aom_free((*cdef_row_mt)[row_idx].row_mutex_);
    109    }
    110    if ((*cdef_row_mt)[row_idx].row_cond_ != NULL) {
    111      pthread_cond_destroy((*cdef_row_mt)[row_idx].row_cond_);
    112      aom_free((*cdef_row_mt)[row_idx].row_cond_);
    113    }
    114  }
    115 #else
    116  (void)num_mi_rows;
    117 #endif  // CONFIG_MULTITHREAD
    118  aom_free(*cdef_row_mt);
    119  *cdef_row_mt = NULL;
    120 }
    121 
    122 void av1_free_cdef_buffers(AV1_COMMON *const cm,
    123                           AV1CdefWorkerData **cdef_worker,
    124                           AV1CdefSync *cdef_sync) {
    125  CdefInfo *cdef_info = &cm->cdef_info;
    126  const int num_mi_rows = cdef_info->allocated_mi_rows;
    127 
    128  for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
    129    aom_free(cdef_info->linebuf[plane]);
    130    cdef_info->linebuf[plane] = NULL;
    131  }
    132  // De-allocation of column buffer & source buffer (worker_0).
    133  free_cdef_bufs(cdef_info->colbuf, &cdef_info->srcbuf);
    134 
    135  free_cdef_row_sync(&cdef_sync->cdef_row_mt, num_mi_rows);
    136 
    137  if (cdef_info->allocated_num_workers < 2) return;
    138  if (*cdef_worker != NULL) {
    139    for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--) {
    140      // De-allocation of column buffer & source buffer for remaining workers.
    141      free_cdef_bufs((*cdef_worker)[idx].colbuf, &(*cdef_worker)[idx].srcbuf);
    142    }
    143    aom_free(*cdef_worker);
    144    *cdef_worker = NULL;
    145  }
    146 }
    147 
    148 static inline void alloc_cdef_linebuf(AV1_COMMON *const cm, uint16_t **linebuf,
    149                                      const int num_planes) {
    150  CdefInfo *cdef_info = &cm->cdef_info;
    151  for (int plane = 0; plane < num_planes; plane++) {
    152    if (linebuf[plane] == NULL)
    153      CHECK_MEM_ERROR(cm, linebuf[plane],
    154                      aom_malloc(cdef_info->allocated_linebuf_size[plane]));
    155  }
    156 }
    157 
    158 static inline void alloc_cdef_bufs(AV1_COMMON *const cm, uint16_t **colbuf,
    159                                   uint16_t **srcbuf, const int num_planes) {
    160  CdefInfo *cdef_info = &cm->cdef_info;
    161  if (*srcbuf == NULL)
    162    CHECK_MEM_ERROR(cm, *srcbuf,
    163                    aom_memalign(16, cdef_info->allocated_srcbuf_size));
    164 
    165  for (int plane = 0; plane < num_planes; plane++) {
    166    if (colbuf[plane] == NULL)
    167      CHECK_MEM_ERROR(cm, colbuf[plane],
    168                      aom_malloc(cdef_info->allocated_colbuf_size[plane]));
    169  }
    170 }
    171 
    172 static inline void alloc_cdef_row_sync(AV1_COMMON *const cm,
    173                                       AV1CdefRowSync **cdef_row_mt,
    174                                       const int num_mi_rows) {
    175  if (*cdef_row_mt != NULL) return;
    176 
    177  CHECK_MEM_ERROR(cm, *cdef_row_mt,
    178                  aom_calloc(num_mi_rows, sizeof(**cdef_row_mt)));
    179 #if CONFIG_MULTITHREAD
    180  for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
    181    CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_mutex_,
    182                    aom_malloc(sizeof(*(*cdef_row_mt)[row_idx].row_mutex_)));
    183    pthread_mutex_init((*cdef_row_mt)[row_idx].row_mutex_, NULL);
    184 
    185    CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_cond_,
    186                    aom_malloc(sizeof(*(*cdef_row_mt)[row_idx].row_cond_)));
    187    pthread_cond_init((*cdef_row_mt)[row_idx].row_cond_, NULL);
    188  }
    189 #endif  // CONFIG_MULTITHREAD
    190 }
    191 
    192 void av1_alloc_cdef_buffers(AV1_COMMON *const cm,
    193                            AV1CdefWorkerData **cdef_worker,
    194                            AV1CdefSync *cdef_sync, int num_workers,
    195                            int init_worker) {
    196  const int num_planes = av1_num_planes(cm);
    197  size_t new_linebuf_size[MAX_MB_PLANE] = { 0 };
    198  size_t new_colbuf_size[MAX_MB_PLANE] = { 0 };
    199  size_t new_srcbuf_size = 0;
    200  CdefInfo *const cdef_info = &cm->cdef_info;
    201  // Check for configuration change
    202  const int num_mi_rows =
    203      (cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
    204  const int is_num_workers_changed =
    205      cdef_info->allocated_num_workers != num_workers;
    206  const int is_cdef_enabled =
    207      cm->seq_params->enable_cdef && !cm->tiles.single_tile_decoding;
    208 
    209  // num-bufs=3 represents ping-pong buffers for top linebuf,
    210  // followed by bottom linebuf.
    211  // ping-pong is to avoid top linebuf over-write by consecutive row.
    212  int num_bufs = 3;
    213  if (num_workers > 1)
    214    num_bufs = (cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
    215 
    216  if (is_cdef_enabled) {
    217    // Calculate src buffer size
    218    new_srcbuf_size = sizeof(*cdef_info->srcbuf) * CDEF_INBUF_SIZE;
    219    for (int plane = 0; plane < num_planes; plane++) {
    220      const int shift =
    221          plane == AOM_PLANE_Y ? 0 : cm->seq_params->subsampling_x;
    222      // Calculate top and bottom line buffer size
    223      const int luma_stride =
    224          ALIGN_POWER_OF_TWO(cm->mi_params.mi_cols << MI_SIZE_LOG2, 4);
    225      new_linebuf_size[plane] = sizeof(*cdef_info->linebuf) * num_bufs *
    226                                (CDEF_VBORDER << 1) * (luma_stride >> shift);
    227      // Calculate column buffer size
    228      const int block_height =
    229          (CDEF_BLOCKSIZE << (MI_SIZE_LOG2 - shift)) * 2 * CDEF_VBORDER;
    230      new_colbuf_size[plane] =
    231          sizeof(*cdef_info->colbuf[plane]) * block_height * CDEF_HBORDER;
    232    }
    233  }
    234 
    235  // Free src, line and column buffers for worker 0 in case of reallocation
    236  free_cdef_linebuf_conditional(cm, new_linebuf_size);
    237  free_cdef_bufs_conditional(cm, cdef_info->colbuf, &cdef_info->srcbuf,
    238                             new_colbuf_size, new_srcbuf_size);
    239 
    240  // The flag init_worker indicates if cdef_worker has to be allocated for the
    241  // frame. This is passed as 1 always from decoder. At encoder side, it is 0
    242  // when called for parallel frames during FPMT (where cdef_worker is shared
    243  // across parallel frames) and 1 otherwise.
    244  if (*cdef_worker != NULL && init_worker) {
    245    if (is_num_workers_changed) {
    246      // Free src and column buffers for remaining workers in case of change in
    247      // num_workers
    248      for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--)
    249        free_cdef_bufs((*cdef_worker)[idx].colbuf, &(*cdef_worker)[idx].srcbuf);
    250 
    251      aom_free(*cdef_worker);
    252      *cdef_worker = NULL;
    253    } else if (num_workers > 1) {
    254      // Free src and column buffers for remaining workers in case of
    255      // reallocation
    256      for (int idx = num_workers - 1; idx >= 1; idx--)
    257        free_cdef_bufs_conditional(cm, (*cdef_worker)[idx].colbuf,
    258                                   &(*cdef_worker)[idx].srcbuf, new_colbuf_size,
    259                                   new_srcbuf_size);
    260    }
    261  }
    262 
    263  if (cdef_info->allocated_mi_rows != num_mi_rows)
    264    free_cdef_row_sync(&cdef_sync->cdef_row_mt, cdef_info->allocated_mi_rows);
    265 
    266  // Store allocated sizes for reallocation
    267  cdef_info->allocated_srcbuf_size = new_srcbuf_size;
    268  av1_copy(cdef_info->allocated_colbuf_size, new_colbuf_size);
    269  av1_copy(cdef_info->allocated_linebuf_size, new_linebuf_size);
    270  // Store configuration to check change in configuration
    271  cdef_info->allocated_mi_rows = num_mi_rows;
    272  cdef_info->allocated_num_workers = num_workers;
    273 
    274  if (!is_cdef_enabled) return;
    275 
    276  // Memory allocation of column buffer & source buffer (worker_0).
    277  alloc_cdef_bufs(cm, cdef_info->colbuf, &cdef_info->srcbuf, num_planes);
    278  alloc_cdef_linebuf(cm, cdef_info->linebuf, num_planes);
    279 
    280  if (num_workers < 2) return;
    281 
    282  if (init_worker) {
    283    if (*cdef_worker == NULL)
    284      CHECK_MEM_ERROR(cm, *cdef_worker,
    285                      aom_calloc(num_workers, sizeof(**cdef_worker)));
    286 
    287    // Memory allocation of column buffer & source buffer for remaining workers.
    288    for (int idx = num_workers - 1; idx >= 1; idx--)
    289      alloc_cdef_bufs(cm, (*cdef_worker)[idx].colbuf,
    290                      &(*cdef_worker)[idx].srcbuf, num_planes);
    291  }
    292 
    293  alloc_cdef_row_sync(cm, &cdef_sync->cdef_row_mt,
    294                      cdef_info->allocated_mi_rows);
    295 }
    296 
    297 #if !CONFIG_REALTIME_ONLY || CONFIG_AV1_DECODER
    298 // Allocate buffers which are independent of restoration_unit_size
    299 void av1_alloc_restoration_buffers(AV1_COMMON *cm, bool is_sgr_enabled) {
    300  const int num_planes = av1_num_planes(cm);
    301 
    302  if (cm->rst_tmpbuf == NULL && is_sgr_enabled) {
    303    CHECK_MEM_ERROR(cm, cm->rst_tmpbuf,
    304                    (int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE));
    305  }
    306 
    307  if (cm->rlbs == NULL) {
    308    CHECK_MEM_ERROR(cm, cm->rlbs, aom_malloc(sizeof(RestorationLineBuffers)));
    309  }
    310 
    311  // For striped loop restoration, we divide each plane into "stripes",
    312  // of height 64 luma pixels but with an offset by RESTORATION_UNIT_OFFSET
    313  // luma pixels to match the output from CDEF. We will need to store 2 *
    314  // RESTORATION_CTX_VERT lines of data for each stripe.
    315  int mi_h = cm->mi_params.mi_rows;
    316  const int ext_h = RESTORATION_UNIT_OFFSET + (mi_h << MI_SIZE_LOG2);
    317  const int num_stripes = (ext_h + 63) / 64;
    318 
    319  // Now we need to allocate enough space to store the line buffers for the
    320  // stripes
    321  const int frame_w = cm->superres_upscaled_width;
    322  const int use_highbd = cm->seq_params->use_highbitdepth;
    323 
    324  for (int p = 0; p < num_planes; ++p) {
    325    const int is_uv = p > 0;
    326    const int ss_x = is_uv && cm->seq_params->subsampling_x;
    327    const int plane_w = ((frame_w + ss_x) >> ss_x) + 2 * RESTORATION_EXTRA_HORZ;
    328    const int stride = ALIGN_POWER_OF_TWO(plane_w, 5);
    329    const int buf_size = num_stripes * stride * RESTORATION_CTX_VERT
    330                         << use_highbd;
    331    RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
    332 
    333    if (buf_size != boundaries->stripe_boundary_size ||
    334        boundaries->stripe_boundary_above == NULL ||
    335        boundaries->stripe_boundary_below == NULL) {
    336      aom_free(boundaries->stripe_boundary_above);
    337      aom_free(boundaries->stripe_boundary_below);
    338 
    339      CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_above,
    340                      (uint8_t *)aom_memalign(32, buf_size));
    341      CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_below,
    342                      (uint8_t *)aom_memalign(32, buf_size));
    343 
    344      boundaries->stripe_boundary_size = buf_size;
    345    }
    346    boundaries->stripe_boundary_stride = stride;
    347  }
    348 }
    349 
    350 void av1_free_restoration_buffers(AV1_COMMON *cm) {
    351  int p;
    352  for (p = 0; p < MAX_MB_PLANE; ++p)
    353    av1_free_restoration_struct(&cm->rst_info[p]);
    354  aom_free(cm->rst_tmpbuf);
    355  cm->rst_tmpbuf = NULL;
    356  aom_free(cm->rlbs);
    357  cm->rlbs = NULL;
    358  for (p = 0; p < MAX_MB_PLANE; ++p) {
    359    RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
    360    aom_free(boundaries->stripe_boundary_above);
    361    aom_free(boundaries->stripe_boundary_below);
    362    boundaries->stripe_boundary_above = NULL;
    363    boundaries->stripe_boundary_below = NULL;
    364  }
    365 
    366  aom_free_frame_buffer(&cm->rst_frame);
    367 }
    368 #endif  // !CONFIG_REALTIME_ONLY || CONFIG_AV1_DECODER
    369 
    370 void av1_free_above_context_buffers(CommonContexts *above_contexts) {
    371  int i;
    372  const int num_planes = above_contexts->num_planes;
    373 
    374  for (int tile_row = 0; tile_row < above_contexts->num_tile_rows; tile_row++) {
    375    for (i = 0; i < num_planes; i++) {
    376      if (above_contexts->entropy[i] == NULL) break;
    377      aom_free(above_contexts->entropy[i][tile_row]);
    378      above_contexts->entropy[i][tile_row] = NULL;
    379    }
    380    if (above_contexts->partition != NULL) {
    381      aom_free(above_contexts->partition[tile_row]);
    382      above_contexts->partition[tile_row] = NULL;
    383    }
    384 
    385    if (above_contexts->txfm != NULL) {
    386      aom_free(above_contexts->txfm[tile_row]);
    387      above_contexts->txfm[tile_row] = NULL;
    388    }
    389  }
    390  for (i = 0; i < num_planes; i++) {
    391    aom_free(above_contexts->entropy[i]);
    392    above_contexts->entropy[i] = NULL;
    393  }
    394  aom_free(above_contexts->partition);
    395  above_contexts->partition = NULL;
    396 
    397  aom_free(above_contexts->txfm);
    398  above_contexts->txfm = NULL;
    399 
    400  above_contexts->num_tile_rows = 0;
    401  above_contexts->num_mi_cols = 0;
    402  above_contexts->num_planes = 0;
    403 }
    404 
    405 void av1_free_context_buffers(AV1_COMMON *cm) {
    406  if (cm->mi_params.free_mi != NULL) cm->mi_params.free_mi(&cm->mi_params);
    407 
    408  av1_free_above_context_buffers(&cm->above_contexts);
    409 }
    410 
    411 int av1_alloc_above_context_buffers(CommonContexts *above_contexts,
    412                                    int num_tile_rows, int num_mi_cols,
    413                                    int num_planes) {
    414  const int aligned_mi_cols =
    415      ALIGN_POWER_OF_TWO(num_mi_cols, MAX_MIB_SIZE_LOG2);
    416 
    417  // Allocate above context buffers
    418  above_contexts->num_tile_rows = num_tile_rows;
    419  above_contexts->num_mi_cols = aligned_mi_cols;
    420  above_contexts->num_planes = num_planes;
    421  for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
    422    above_contexts->entropy[plane_idx] = (ENTROPY_CONTEXT **)aom_calloc(
    423        num_tile_rows, sizeof(above_contexts->entropy[0]));
    424    if (!above_contexts->entropy[plane_idx]) return 1;
    425  }
    426 
    427  above_contexts->partition = (PARTITION_CONTEXT **)aom_calloc(
    428      num_tile_rows, sizeof(above_contexts->partition));
    429  if (!above_contexts->partition) return 1;
    430 
    431  above_contexts->txfm =
    432      (TXFM_CONTEXT **)aom_calloc(num_tile_rows, sizeof(above_contexts->txfm));
    433  if (!above_contexts->txfm) return 1;
    434 
    435  for (int tile_row = 0; tile_row < num_tile_rows; tile_row++) {
    436    for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
    437      above_contexts->entropy[plane_idx][tile_row] =
    438          (ENTROPY_CONTEXT *)aom_calloc(
    439              aligned_mi_cols, sizeof(*above_contexts->entropy[0][tile_row]));
    440      if (!above_contexts->entropy[plane_idx][tile_row]) return 1;
    441    }
    442 
    443    above_contexts->partition[tile_row] = (PARTITION_CONTEXT *)aom_calloc(
    444        aligned_mi_cols, sizeof(*above_contexts->partition[tile_row]));
    445    if (!above_contexts->partition[tile_row]) return 1;
    446 
    447    above_contexts->txfm[tile_row] = (TXFM_CONTEXT *)aom_calloc(
    448        aligned_mi_cols, sizeof(*above_contexts->txfm[tile_row]));
    449    if (!above_contexts->txfm[tile_row]) return 1;
    450  }
    451 
    452  return 0;
    453 }
    454 
    455 // Allocate the dynamically allocated arrays in 'mi_params' assuming
    456 // 'mi_params->set_mb_mi()' was already called earlier to initialize the rest of
    457 // the struct members.
    458 static int alloc_mi(CommonModeInfoParams *mi_params) {
    459  const int aligned_mi_rows = calc_mi_size(mi_params->mi_rows);
    460  const int mi_grid_size = mi_params->mi_stride * aligned_mi_rows;
    461  const int alloc_size_1d = mi_size_wide[mi_params->mi_alloc_bsize];
    462  const int alloc_mi_size =
    463      mi_params->mi_alloc_stride * (aligned_mi_rows / alloc_size_1d);
    464 
    465  if (mi_params->mi_alloc_size < alloc_mi_size ||
    466      mi_params->mi_grid_size < mi_grid_size) {
    467    mi_params->free_mi(mi_params);
    468 
    469    mi_params->mi_alloc =
    470        aom_calloc(alloc_mi_size, sizeof(*mi_params->mi_alloc));
    471    if (!mi_params->mi_alloc) return 1;
    472    mi_params->mi_alloc_size = alloc_mi_size;
    473 
    474    mi_params->mi_grid_base = (MB_MODE_INFO **)aom_calloc(
    475        mi_grid_size, sizeof(*mi_params->mi_grid_base));
    476    if (!mi_params->mi_grid_base) return 1;
    477 
    478    mi_params->tx_type_map =
    479        aom_calloc(mi_grid_size, sizeof(*mi_params->tx_type_map));
    480    if (!mi_params->tx_type_map) return 1;
    481    mi_params->mi_grid_size = mi_grid_size;
    482  }
    483 
    484  return 0;
    485 }
    486 
    487 int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height,
    488                              BLOCK_SIZE min_partition_size) {
    489  CommonModeInfoParams *const mi_params = &cm->mi_params;
    490  mi_params->set_mb_mi(mi_params, width, height, min_partition_size);
    491  if (alloc_mi(mi_params)) goto fail;
    492  return 0;
    493 
    494 fail:
    495  // clear the mi_* values to force a realloc on resync
    496  mi_params->set_mb_mi(mi_params, 0, 0, BLOCK_4X4);
    497  av1_free_context_buffers(cm);
    498  return 1;
    499 }
    500 
    501 void av1_remove_common(AV1_COMMON *cm) {
    502  av1_free_context_buffers(cm);
    503 
    504  aom_free(cm->fc);
    505  cm->fc = NULL;
    506  aom_free(cm->default_frame_context);
    507  cm->default_frame_context = NULL;
    508 }
    509 
    510 void av1_init_mi_buffers(CommonModeInfoParams *mi_params) {
    511  mi_params->setup_mi(mi_params);
    512 }