av1/common/alloccommon.c - aom - Git at Google

 /*
  *
  * Copyright (c) 2016, 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.
  */

 #include "config/aom_config.h"

 #include "aom_mem/aom_mem.h"

 #include "av1/common/alloccommon.h"
 #include "av1/common/av1_common_int.h"
 #include "av1/common/blockd.h"
 #include "av1/common/cdef_block.h"
 #include "av1/common/entropymode.h"
 #include "av1/common/entropymv.h"
 #include "av1/common/thread_common.h"

 int av1_get_MBs(int width, int height) {
   const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
   const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
   const int mi_cols = aligned_width >> MI_SIZE_LOG2;
   const int mi_rows = aligned_height >> MI_SIZE_LOG2;

   const int mb_cols = (mi_cols + 2) >> 2;
   const int mb_rows = (mi_rows + 2) >> 2;
   return mb_rows * mb_cols;
 }

 void av1_free_ref_frame_buffers(BufferPool *pool) {
   int i;

   for (i = 0; i < FRAME_BUFFERS; ++i) {
     if (pool->frame_bufs[i].ref_count > 0 &&
         pool->frame_bufs[i].raw_frame_buffer.data != NULL) {
       pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer);
       pool->frame_bufs[i].raw_frame_buffer.data = NULL;
       pool->frame_bufs[i].raw_frame_buffer.size = 0;
       pool->frame_bufs[i].raw_frame_buffer.priv = NULL;
       pool->frame_bufs[i].ref_count = 0;
     }
     aom_free(pool->frame_bufs[i].mvs);
     pool->frame_bufs[i].mvs = NULL;
     aom_free(pool->frame_bufs[i].seg_map);
     pool->frame_bufs[i].seg_map = NULL;
     aom_free_frame_buffer(&pool->frame_bufs[i].buf);
   }
 }

 static INLINE void free_cdef_linebuf_conditional(
     AV1_COMMON *const cm, const size_t *new_linebuf_size) {
   CdefInfo *cdef_info = &cm->cdef_info;
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     if (new_linebuf_size[plane] != cdef_info->allocated_linebuf_size[plane]) {
       aom_free(cdef_info->linebuf[plane]);
       cdef_info->linebuf[plane] = NULL;
     }
   }
 }

 static INLINE void free_cdef_bufs_conditional(AV1_COMMON *const cm,
                                               uint16_t **colbuf,
                                               uint16_t **srcbuf,
                                               const size_t *new_colbuf_size,
                                               const size_t new_srcbuf_size) {
   CdefInfo *cdef_info = &cm->cdef_info;
   if (new_srcbuf_size != cdef_info->allocated_srcbuf_size) {
     aom_free(*srcbuf);
     *srcbuf = NULL;
   }
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     if (new_colbuf_size[plane] != cdef_info->allocated_colbuf_size[plane]) {
       aom_free(colbuf[plane]);
       colbuf[plane] = NULL;
     }
   }
 }

 static INLINE void free_cdef_bufs(uint16_t **colbuf, uint16_t **srcbuf) {
   aom_free(*srcbuf);
   *srcbuf = NULL;
   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     aom_free(colbuf[plane]);
     colbuf[plane] = NULL;
   }
 }

 static INLINE void free_cdef_row_sync(AV1CdefRowSync **cdef_row_mt,
                                       const int num_mi_rows) {
   if (*cdef_row_mt == NULL) return;
 #if CONFIG_MULTITHREAD
   for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
     pthread_mutex_destroy((*cdef_row_mt)[row_idx].row_mutex_);
     pthread_cond_destroy((*cdef_row_mt)[row_idx].row_cond_);
     aom_free((*cdef_row_mt)[row_idx].row_mutex_);
     aom_free((*cdef_row_mt)[row_idx].row_cond_);
   }
 #else
   (void)num_mi_rows;
 #endif  // CONFIG_MULTITHREAD
   aom_free(*cdef_row_mt);
   *cdef_row_mt = NULL;
 }

 void av1_free_cdef_buffers(AV1_COMMON *const cm,
                            AV1CdefWorkerData **cdef_worker,
                            AV1CdefSync *cdef_sync) {
   CdefInfo *cdef_info = &cm->cdef_info;
   const int num_mi_rows = cdef_info->allocated_mi_rows;

   for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
     aom_free(cdef_info->linebuf[plane]);
     cdef_info->linebuf[plane] = NULL;
   }
   // De-allocation of column buffer & source buffer (worker_0).
   free_cdef_bufs(cdef_info->colbuf, &cdef_info->srcbuf);

   free_cdef_row_sync(&cdef_sync->cdef_row_mt, num_mi_rows);

   if (cdef_info->allocated_num_workers < 2) return;
   if (*cdef_worker != NULL) {
     for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--) {
       // De-allocation of column buffer & source buffer for remaining workers.
       free_cdef_bufs((*cdef_worker)[idx].colbuf, &(*cdef_worker)[idx].srcbuf);
     }
     aom_free(*cdef_worker);
     *cdef_worker = NULL;
   }
 }

 static INLINE void alloc_cdef_linebuf(AV1_COMMON *const cm, uint16_t **linebuf,
                                       const int num_planes) {
   CdefInfo *cdef_info = &cm->cdef_info;
   for (int plane = 0; plane < num_planes; plane++) {
     if (linebuf[plane] == NULL)
       CHECK_MEM_ERROR(cm, linebuf[plane],
                       aom_malloc(cdef_info->allocated_linebuf_size[plane]));
   }
 }

 static INLINE void alloc_cdef_bufs(AV1_COMMON *const cm, uint16_t **colbuf,
                                    uint16_t **srcbuf, const int num_planes) {
   CdefInfo *cdef_info = &cm->cdef_info;
   if (*srcbuf == NULL)
     CHECK_MEM_ERROR(cm, *srcbuf,
                     aom_memalign(16, cdef_info->allocated_srcbuf_size));

   for (int plane = 0; plane < num_planes; plane++) {
     if (colbuf[plane] == NULL)
       CHECK_MEM_ERROR(cm, colbuf[plane],
                       aom_malloc(cdef_info->allocated_colbuf_size[plane]));
   }
 }

 static INLINE void alloc_cdef_row_sync(AV1_COMMON *const cm,
                                        AV1CdefRowSync **cdef_row_mt,
                                        const int num_mi_rows) {
   if (*cdef_row_mt != NULL) return;

   CHECK_MEM_ERROR(cm, *cdef_row_mt,
                   aom_malloc(sizeof(**cdef_row_mt) * num_mi_rows));
 #if CONFIG_MULTITHREAD
   for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
     CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_mutex_,
                     aom_malloc(sizeof(*(*cdef_row_mt)[row_idx].row_mutex_)));
     pthread_mutex_init((*cdef_row_mt)[row_idx].row_mutex_, NULL);

     CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_cond_,
                     aom_malloc(sizeof(*(*cdef_row_mt)[row_idx].row_cond_)));
     pthread_cond_init((*cdef_row_mt)[row_idx].row_cond_, NULL);

     (*cdef_row_mt)[row_idx].is_row_done = 0;
   }
 #endif  // CONFIG_MULTITHREAD
 }

 void av1_alloc_cdef_buffers(AV1_COMMON *const cm,
                             AV1CdefWorkerData **cdef_worker,
                             AV1CdefSync *cdef_sync, int num_workers,
                             int init_worker) {
   const int num_planes = av1_num_planes(cm);
   size_t new_linebuf_size[MAX_MB_PLANE] = { 0 };
   size_t new_colbuf_size[MAX_MB_PLANE] = { 0 };
   size_t new_srcbuf_size = 0;
   CdefInfo *const cdef_info = &cm->cdef_info;
   // Check for configuration change
   const int num_mi_rows =
       (cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
   const int is_num_workers_changed =
       cdef_info->allocated_num_workers != num_workers;
   const int is_cdef_enabled =
       cm->seq_params->enable_cdef && !cm->tiles.large_scale;

   // num-bufs=3 represents ping-pong buffers for top linebuf,
   // followed by bottom linebuf.
   // ping-pong is to avoid top linebuf over-write by consecutive row.
   int num_bufs = 3;
   if (num_workers > 1)
     num_bufs = (cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;

   if (is_cdef_enabled) {
     // Calculate src buffer size
     new_srcbuf_size = sizeof(*cdef_info->srcbuf) * CDEF_INBUF_SIZE;
     for (int plane = 0; plane < num_planes; plane++) {
       const int shift =
           plane == AOM_PLANE_Y ? 0 : cm->seq_params->subsampling_x;
       // Calculate top and bottom line buffer size
       const int luma_stride =
           ALIGN_POWER_OF_TWO(cm->mi_params.mi_cols << MI_SIZE_LOG2, 4);
       new_linebuf_size[plane] = sizeof(*cdef_info->linebuf) * num_bufs *
                                 (CDEF_VBORDER << 1) * (luma_stride >> shift);
       // Calculate column buffer size
       const int block_height =
           (CDEF_BLOCKSIZE << (MI_SIZE_LOG2 - shift)) * 2 * CDEF_VBORDER;
       new_colbuf_size[plane] =
           sizeof(*cdef_info->colbuf[plane]) * block_height * CDEF_HBORDER;
     }
   }

   // Free src, line and column buffers for worker 0 in case of reallocation
   free_cdef_linebuf_conditional(cm, new_linebuf_size);
   free_cdef_bufs_conditional(cm, cdef_info->colbuf, &cdef_info->srcbuf,
                              new_colbuf_size, new_srcbuf_size);

   // The flag init_worker indicates if cdef_worker has to be allocated for the
   // frame. This is passed as 1 always from decoder. At encoder side, it is 0
   // when called for parallel frames during FPMT (where cdef_worker is shared
   // across parallel frames) and 1 otherwise.
   if (*cdef_worker != NULL && init_worker) {
     if (is_num_workers_changed) {
       // Free src and column buffers for remaining workers in case of change in
       // num_workers
       for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--)
         free_cdef_bufs((*cdef_worker)[idx].colbuf, &(*cdef_worker)[idx].srcbuf);

       aom_free(*cdef_worker);
       *cdef_worker = NULL;
     } else if (num_workers > 1) {
       // Free src and column buffers for remaining workers in case of
       // reallocation
       for (int idx = num_workers - 1; idx >= 1; idx--)
         free_cdef_bufs_conditional(cm, (*cdef_worker)[idx].colbuf,
                                    &(*cdef_worker)[idx].srcbuf, new_colbuf_size,
                                    new_srcbuf_size);
     }
   }

   if (cdef_info->allocated_mi_rows != num_mi_rows)
     free_cdef_row_sync(&cdef_sync->cdef_row_mt, cdef_info->allocated_mi_rows);

   // Store allocated sizes for reallocation
   cdef_info->allocated_srcbuf_size = new_srcbuf_size;
   av1_copy(cdef_info->allocated_colbuf_size, new_colbuf_size);
   av1_copy(cdef_info->allocated_linebuf_size, new_linebuf_size);
   // Store configuration to check change in configuration
   cdef_info->allocated_mi_rows = num_mi_rows;
   cdef_info->allocated_num_workers = num_workers;

   if (!is_cdef_enabled) return;

   // Memory allocation of column buffer & source buffer (worker_0).
   alloc_cdef_bufs(cm, cdef_info->colbuf, &cdef_info->srcbuf, num_planes);
   alloc_cdef_linebuf(cm, cdef_info->linebuf, num_planes);

   if (num_workers < 2) return;

   if (init_worker) {
     if (*cdef_worker == NULL)
       CHECK_MEM_ERROR(cm, *cdef_worker,
                       aom_calloc(num_workers, sizeof(**cdef_worker)));

     // Memory allocation of column buffer & source buffer for remaining workers.
     for (int idx = num_workers - 1; idx >= 1; idx--)
       alloc_cdef_bufs(cm, (*cdef_worker)[idx].colbuf,
                       &(*cdef_worker)[idx].srcbuf, num_planes);
   }

   alloc_cdef_row_sync(cm, &cdef_sync->cdef_row_mt,
                       cdef_info->allocated_mi_rows);
 }

 // Assumes cm->rst_info[p].restoration_unit_size is already initialized
 void av1_alloc_restoration_buffers(AV1_COMMON *cm) {
   const int num_planes = av1_num_planes(cm);
   for (int p = 0; p < num_planes; ++p)
     av1_alloc_restoration_struct(cm, &cm->rst_info[p], p > 0);

   if (cm->rst_tmpbuf == NULL) {
     CHECK_MEM_ERROR(cm, cm->rst_tmpbuf,
                     (int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE));
   }

   if (cm->rlbs == NULL) {
     CHECK_MEM_ERROR(cm, cm->rlbs, aom_malloc(sizeof(RestorationLineBuffers)));
   }

   // For striped loop restoration, we divide each row of tiles into "stripes",
   // of height 64 luma pixels but with an offset by RESTORATION_UNIT_OFFSET
   // luma pixels to match the output from CDEF. We will need to store 2 *
   // RESTORATION_CTX_VERT lines of data for each stripe, and also need to be
   // able to quickly answer the question "Where is the <n>'th stripe for tile
   // row <m>?" To make that efficient, we generate the rst_last_stripe array.
   int num_stripes = 0;
   for (int i = 0; i < cm->tiles.rows; ++i) {
     TileInfo tile_info;
     av1_tile_set_row(&tile_info, cm, i);
     const int mi_h = tile_info.mi_row_end - tile_info.mi_row_start;
     const int ext_h = RESTORATION_UNIT_OFFSET + (mi_h << MI_SIZE_LOG2);
     const int tile_stripes = (ext_h + 63) / 64;
     num_stripes += tile_stripes;
   }

   // Now we need to allocate enough space to store the line buffers for the
   // stripes
   const int frame_w = cm->superres_upscaled_width;
   const int use_highbd = cm->seq_params->use_highbitdepth;

   for (int p = 0; p < num_planes; ++p) {
     const int is_uv = p > 0;
     const int ss_x = is_uv && cm->seq_params->subsampling_x;
     const int plane_w = ((frame_w + ss_x) >> ss_x) + 2 * RESTORATION_EXTRA_HORZ;
     const int stride = ALIGN_POWER_OF_TWO(plane_w, 5);
     const int buf_size = num_stripes * stride * RESTORATION_CTX_VERT
                          << use_highbd;
     RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;

     if (buf_size != boundaries->stripe_boundary_size ||
         boundaries->stripe_boundary_above == NULL ||
         boundaries->stripe_boundary_below == NULL) {
       aom_free(boundaries->stripe_boundary_above);
       aom_free(boundaries->stripe_boundary_below);

       CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_above,
                       (uint8_t *)aom_memalign(32, buf_size));
       CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_below,
                       (uint8_t *)aom_memalign(32, buf_size));

       boundaries->stripe_boundary_size = buf_size;
     }
     boundaries->stripe_boundary_stride = stride;
   }
 }

 void av1_free_restoration_buffers(AV1_COMMON *cm) {
   int p;
   for (p = 0; p < MAX_MB_PLANE; ++p)
     av1_free_restoration_struct(&cm->rst_info[p]);
   aom_free(cm->rst_tmpbuf);
   cm->rst_tmpbuf = NULL;
   aom_free(cm->rlbs);
   cm->rlbs = NULL;
   for (p = 0; p < MAX_MB_PLANE; ++p) {
     RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
     aom_free(boundaries->stripe_boundary_above);
     aom_free(boundaries->stripe_boundary_below);
     boundaries->stripe_boundary_above = NULL;
     boundaries->stripe_boundary_below = NULL;
   }

   aom_free_frame_buffer(&cm->rst_frame);
 }

 void av1_free_above_context_buffers(CommonContexts *above_contexts) {
   int i;
   const int num_planes = above_contexts->num_planes;

   for (int tile_row = 0; tile_row < above_contexts->num_tile_rows; tile_row++) {
     for (i = 0; i < num_planes; i++) {
       aom_free(above_contexts->entropy[i][tile_row]);
       above_contexts->entropy[i][tile_row] = NULL;
     }
     aom_free(above_contexts->partition[tile_row]);
     above_contexts->partition[tile_row] = NULL;

     aom_free(above_contexts->txfm[tile_row]);
     above_contexts->txfm[tile_row] = NULL;
   }
   for (i = 0; i < num_planes; i++) {
     aom_free(above_contexts->entropy[i]);
     above_contexts->entropy[i] = NULL;
   }
   aom_free(above_contexts->partition);
   above_contexts->partition = NULL;

   aom_free(above_contexts->txfm);
   above_contexts->txfm = NULL;

   above_contexts->num_tile_rows = 0;
   above_contexts->num_mi_cols = 0;
   above_contexts->num_planes = 0;
 }

 void av1_free_context_buffers(AV1_COMMON *cm) {
   cm->mi_params.free_mi(&cm->mi_params);

   av1_free_above_context_buffers(&cm->above_contexts);
 }

 int av1_alloc_above_context_buffers(CommonContexts *above_contexts,
                                     int num_tile_rows, int num_mi_cols,
                                     int num_planes) {
   const int aligned_mi_cols =
       ALIGN_POWER_OF_TWO(num_mi_cols, MAX_MIB_SIZE_LOG2);

   // Allocate above context buffers
   above_contexts->num_tile_rows = num_tile_rows;
   above_contexts->num_mi_cols = aligned_mi_cols;
   above_contexts->num_planes = num_planes;
   for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
     above_contexts->entropy[plane_idx] = (ENTROPY_CONTEXT **)aom_calloc(
         num_tile_rows, sizeof(above_contexts->entropy[0]));
     if (!above_contexts->entropy[plane_idx]) return 1;
   }

   above_contexts->partition = (PARTITION_CONTEXT **)aom_calloc(
       num_tile_rows, sizeof(above_contexts->partition));
   if (!above_contexts->partition) return 1;

   above_contexts->txfm =
       (TXFM_CONTEXT **)aom_calloc(num_tile_rows, sizeof(above_contexts->txfm));
   if (!above_contexts->txfm) return 1;

   for (int tile_row = 0; tile_row < num_tile_rows; tile_row++) {
     for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
       above_contexts->entropy[plane_idx][tile_row] =
           (ENTROPY_CONTEXT *)aom_calloc(
               aligned_mi_cols, sizeof(*above_contexts->entropy[0][tile_row]));
       if (!above_contexts->entropy[plane_idx][tile_row]) return 1;
     }

     above_contexts->partition[tile_row] = (PARTITION_CONTEXT *)aom_calloc(
         aligned_mi_cols, sizeof(*above_contexts->partition[tile_row]));
     if (!above_contexts->partition[tile_row]) return 1;

     above_contexts->txfm[tile_row] = (TXFM_CONTEXT *)aom_calloc(
         aligned_mi_cols, sizeof(*above_contexts->txfm[tile_row]));
     if (!above_contexts->txfm[tile_row]) return 1;
   }

   return 0;
 }

 // Allocate the dynamically allocated arrays in 'mi_params' assuming
 // 'mi_params->set_mb_mi()' was already called earlier to initialize the rest of
 // the struct members.
 static int alloc_mi(CommonModeInfoParams *mi_params) {
   const int aligned_mi_rows = calc_mi_size(mi_params->mi_rows);
   const int mi_grid_size = mi_params->mi_stride * aligned_mi_rows;
   const int alloc_size_1d = mi_size_wide[mi_params->mi_alloc_bsize];
   const int alloc_mi_size =
       mi_params->mi_alloc_stride * (aligned_mi_rows / alloc_size_1d);

   if (mi_params->mi_alloc_size < alloc_mi_size ||
       mi_params->mi_grid_size < mi_grid_size) {
     mi_params->free_mi(mi_params);

     mi_params->mi_alloc =
         aom_calloc(alloc_mi_size, sizeof(*mi_params->mi_alloc));
     if (!mi_params->mi_alloc) return 1;
     mi_params->mi_alloc_size = alloc_mi_size;

     mi_params->mi_grid_base = (MB_MODE_INFO **)aom_calloc(
         mi_grid_size, sizeof(*mi_params->mi_grid_base));
     if (!mi_params->mi_grid_base) return 1;
     mi_params->mi_grid_size = mi_grid_size;

     mi_params->tx_type_map =
         aom_calloc(mi_grid_size, sizeof(*mi_params->tx_type_map));
     if (!mi_params->tx_type_map) return 1;
   }

   return 0;
 }

 int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height,
                               BLOCK_SIZE min_partition_size) {
   CommonModeInfoParams *const mi_params = &cm->mi_params;
   mi_params->set_mb_mi(mi_params, width, height, min_partition_size);
   if (alloc_mi(mi_params)) goto fail;
   return 0;

 fail:
   // clear the mi_* values to force a realloc on resync
   mi_params->set_mb_mi(mi_params, 0, 0, BLOCK_4X4);
   av1_free_context_buffers(cm);
   return 1;
 }

 void av1_remove_common(AV1_COMMON *cm) {
   av1_free_context_buffers(cm);

   aom_free(cm->fc);
   cm->fc = NULL;
   aom_free(cm->default_frame_context);
   cm->default_frame_context = NULL;
 }

 void av1_init_mi_buffers(CommonModeInfoParams *mi_params) {
   mi_params->setup_mi(mi_params);
 }
	/*
	*
	* Copyright (c) 2016, 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.
	*/

	#include "config/aom_config.h"

	#include "aom_mem/aom_mem.h"

	#include "av1/common/alloccommon.h"
	#include "av1/common/av1_common_int.h"
	#include "av1/common/blockd.h"
	#include "av1/common/cdef_block.h"
	#include "av1/common/entropymode.h"
	#include "av1/common/entropymv.h"
	#include "av1/common/thread_common.h"

	int av1_get_MBs(int width, int height) {
	const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
	const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
	const int mi_cols = aligned_width >> MI_SIZE_LOG2;
	const int mi_rows = aligned_height >> MI_SIZE_LOG2;

	const int mb_cols = (mi_cols + 2) >> 2;
	const int mb_rows = (mi_rows + 2) >> 2;
	return mb_rows * mb_cols;
	}

	void av1_free_ref_frame_buffers(BufferPool *pool) {
	int i;

	for (i = 0; i < FRAME_BUFFERS; ++i) {
	if (pool->frame_bufs[i].ref_count > 0 &&
	pool->frame_bufs[i].raw_frame_buffer.data != NULL) {
	pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer);
	pool->frame_bufs[i].raw_frame_buffer.data = NULL;
	pool->frame_bufs[i].raw_frame_buffer.size = 0;
	pool->frame_bufs[i].raw_frame_buffer.priv = NULL;
	pool->frame_bufs[i].ref_count = 0;
	}
	aom_free(pool->frame_bufs[i].mvs);
	pool->frame_bufs[i].mvs = NULL;
	aom_free(pool->frame_bufs[i].seg_map);
	pool->frame_bufs[i].seg_map = NULL;
	aom_free_frame_buffer(&pool->frame_bufs[i].buf);
	}
	}

	static INLINE void free_cdef_linebuf_conditional(
	AV1_COMMON const cm, const size_t new_linebuf_size) {
	CdefInfo *cdef_info = &cm->cdef_info;
	for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
	if (new_linebuf_size[plane] != cdef_info->allocated_linebuf_size[plane]) {
	aom_free(cdef_info->linebuf[plane]);
	cdef_info->linebuf[plane] = NULL;
	}
	}
	}

	static INLINE void free_cdef_bufs_conditional(AV1_COMMON *const cm,
	uint16_t **colbuf,
	uint16_t **srcbuf,
	const size_t *new_colbuf_size,
	const size_t new_srcbuf_size) {
	CdefInfo *cdef_info = &cm->cdef_info;
	if (new_srcbuf_size != cdef_info->allocated_srcbuf_size) {
	aom_free(*srcbuf);
	*srcbuf = NULL;
	}
	for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
	if (new_colbuf_size[plane] != cdef_info->allocated_colbuf_size[plane]) {
	aom_free(colbuf[plane]);
	colbuf[plane] = NULL;
	}
	}
	}

	static INLINE void free_cdef_bufs(uint16_t colbuf, uint16_t srcbuf) {
	aom_free(*srcbuf);
	*srcbuf = NULL;
	for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
	aom_free(colbuf[plane]);
	colbuf[plane] = NULL;
	}
	}

	static INLINE void free_cdef_row_sync(AV1CdefRowSync **cdef_row_mt,
	const int num_mi_rows) {
	if (*cdef_row_mt == NULL) return;
	#if CONFIG_MULTITHREAD
	for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
	pthread_mutex_destroy((*cdef_row_mt)[row_idx].row_mutex_);
	pthread_cond_destroy((*cdef_row_mt)[row_idx].row_cond_);
	aom_free((*cdef_row_mt)[row_idx].row_mutex_);
	aom_free((*cdef_row_mt)[row_idx].row_cond_);
	}
	#else
	(void)num_mi_rows;
	#endif // CONFIG_MULTITHREAD
	aom_free(*cdef_row_mt);
	*cdef_row_mt = NULL;
	}

	void av1_free_cdef_buffers(AV1_COMMON *const cm,
	AV1CdefWorkerData **cdef_worker,
	AV1CdefSync *cdef_sync) {
	CdefInfo *cdef_info = &cm->cdef_info;
	const int num_mi_rows = cdef_info->allocated_mi_rows;

	for (int plane = 0; plane < MAX_MB_PLANE; plane++) {
	aom_free(cdef_info->linebuf[plane]);
	cdef_info->linebuf[plane] = NULL;
	}
	// De-allocation of column buffer & source buffer (worker_0).
	free_cdef_bufs(cdef_info->colbuf, &cdef_info->srcbuf);

	free_cdef_row_sync(&cdef_sync->cdef_row_mt, num_mi_rows);

	if (cdef_info->allocated_num_workers < 2) return;
	if (*cdef_worker != NULL) {
	for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--) {
	// De-allocation of column buffer & source buffer for remaining workers.
	free_cdef_bufs((cdef_worker)[idx].colbuf, &(cdef_worker)[idx].srcbuf);
	}
	aom_free(*cdef_worker);
	*cdef_worker = NULL;
	}
	}

	static INLINE void alloc_cdef_linebuf(AV1_COMMON const cm, uint16_t *linebuf,
	const int num_planes) {
	CdefInfo *cdef_info = &cm->cdef_info;
	for (int plane = 0; plane < num_planes; plane++) {
	if (linebuf[plane] == NULL)
	CHECK_MEM_ERROR(cm, linebuf[plane],
	aom_malloc(cdef_info->allocated_linebuf_size[plane]));
	}
	}

	static INLINE void alloc_cdef_bufs(AV1_COMMON const cm, uint16_t *colbuf,
	uint16_t **srcbuf, const int num_planes) {
	CdefInfo *cdef_info = &cm->cdef_info;
	if (*srcbuf == NULL)
	CHECK_MEM_ERROR(cm, *srcbuf,
	aom_memalign(16, cdef_info->allocated_srcbuf_size));

	for (int plane = 0; plane < num_planes; plane++) {
	if (colbuf[plane] == NULL)
	CHECK_MEM_ERROR(cm, colbuf[plane],
	aom_malloc(cdef_info->allocated_colbuf_size[plane]));
	}
	}

	static INLINE void alloc_cdef_row_sync(AV1_COMMON *const cm,
	AV1CdefRowSync **cdef_row_mt,
	const int num_mi_rows) {
	if (*cdef_row_mt != NULL) return;

	CHECK_MEM_ERROR(cm, *cdef_row_mt,
	aom_malloc(sizeof(*cdef_row_mt) num_mi_rows));
	#if CONFIG_MULTITHREAD
	for (int row_idx = 0; row_idx < num_mi_rows; row_idx++) {
	CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_mutex_,
	aom_malloc(sizeof((cdef_row_mt)[row_idx].row_mutex_)));
	pthread_mutex_init((*cdef_row_mt)[row_idx].row_mutex_, NULL);

	CHECK_MEM_ERROR(cm, (*cdef_row_mt)[row_idx].row_cond_,
	aom_malloc(sizeof((cdef_row_mt)[row_idx].row_cond_)));
	pthread_cond_init((*cdef_row_mt)[row_idx].row_cond_, NULL);

	(*cdef_row_mt)[row_idx].is_row_done = 0;
	}
	#endif // CONFIG_MULTITHREAD
	}

	void av1_alloc_cdef_buffers(AV1_COMMON *const cm,
	AV1CdefWorkerData **cdef_worker,
	AV1CdefSync *cdef_sync, int num_workers,
	int init_worker) {
	const int num_planes = av1_num_planes(cm);
	size_t new_linebuf_size[MAX_MB_PLANE] = { 0 };
	size_t new_colbuf_size[MAX_MB_PLANE] = { 0 };
	size_t new_srcbuf_size = 0;
	CdefInfo *const cdef_info = &cm->cdef_info;
	// Check for configuration change
	const int num_mi_rows =
	(cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;
	const int is_num_workers_changed =
	cdef_info->allocated_num_workers != num_workers;
	const int is_cdef_enabled =
	cm->seq_params->enable_cdef && !cm->tiles.large_scale;

	// num-bufs=3 represents ping-pong buffers for top linebuf,
	// followed by bottom linebuf.
	// ping-pong is to avoid top linebuf over-write by consecutive row.
	int num_bufs = 3;
	if (num_workers > 1)
	num_bufs = (cm->mi_params.mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64;

	if (is_cdef_enabled) {
	// Calculate src buffer size
	new_srcbuf_size = sizeof(cdef_info->srcbuf) CDEF_INBUF_SIZE;
	for (int plane = 0; plane < num_planes; plane++) {
	const int shift =
	plane == AOM_PLANE_Y ? 0 : cm->seq_params->subsampling_x;
	// Calculate top and bottom line buffer size
	const int luma_stride =
	ALIGN_POWER_OF_TWO(cm->mi_params.mi_cols << MI_SIZE_LOG2, 4);
	new_linebuf_size[plane] = sizeof(cdef_info->linebuf) num_bufs *
	(CDEF_VBORDER << 1) * (luma_stride >> shift);
	// Calculate column buffer size
	const int block_height =
	(CDEF_BLOCKSIZE << (MI_SIZE_LOG2 - shift)) * 2 * CDEF_VBORDER;
	new_colbuf_size[plane] =
	sizeof(cdef_info->colbuf[plane]) block_height * CDEF_HBORDER;
	}
	}

	// Free src, line and column buffers for worker 0 in case of reallocation
	free_cdef_linebuf_conditional(cm, new_linebuf_size);
	free_cdef_bufs_conditional(cm, cdef_info->colbuf, &cdef_info->srcbuf,
	new_colbuf_size, new_srcbuf_size);

	// The flag init_worker indicates if cdef_worker has to be allocated for the
	// frame. This is passed as 1 always from decoder. At encoder side, it is 0
	// when called for parallel frames during FPMT (where cdef_worker is shared
	// across parallel frames) and 1 otherwise.
	if (*cdef_worker != NULL && init_worker) {
	if (is_num_workers_changed) {
	// Free src and column buffers for remaining workers in case of change in
	// num_workers
	for (int idx = cdef_info->allocated_num_workers - 1; idx >= 1; idx--)
	free_cdef_bufs((cdef_worker)[idx].colbuf, &(cdef_worker)[idx].srcbuf);

	aom_free(*cdef_worker);
	*cdef_worker = NULL;
	} else if (num_workers > 1) {
	// Free src and column buffers for remaining workers in case of
	// reallocation
	for (int idx = num_workers - 1; idx >= 1; idx--)
	free_cdef_bufs_conditional(cm, (*cdef_worker)[idx].colbuf,
	&(*cdef_worker)[idx].srcbuf, new_colbuf_size,
	new_srcbuf_size);
	}
	}

	if (cdef_info->allocated_mi_rows != num_mi_rows)
	free_cdef_row_sync(&cdef_sync->cdef_row_mt, cdef_info->allocated_mi_rows);

	// Store allocated sizes for reallocation
	cdef_info->allocated_srcbuf_size = new_srcbuf_size;
	av1_copy(cdef_info->allocated_colbuf_size, new_colbuf_size);
	av1_copy(cdef_info->allocated_linebuf_size, new_linebuf_size);
	// Store configuration to check change in configuration
	cdef_info->allocated_mi_rows = num_mi_rows;
	cdef_info->allocated_num_workers = num_workers;

	if (!is_cdef_enabled) return;

	// Memory allocation of column buffer & source buffer (worker_0).
	alloc_cdef_bufs(cm, cdef_info->colbuf, &cdef_info->srcbuf, num_planes);
	alloc_cdef_linebuf(cm, cdef_info->linebuf, num_planes);

	if (num_workers < 2) return;

	if (init_worker) {
	if (*cdef_worker == NULL)
	CHECK_MEM_ERROR(cm, *cdef_worker,
	aom_calloc(num_workers, sizeof(**cdef_worker)));

	// Memory allocation of column buffer & source buffer for remaining workers.
	for (int idx = num_workers - 1; idx >= 1; idx--)
	alloc_cdef_bufs(cm, (*cdef_worker)[idx].colbuf,
	&(*cdef_worker)[idx].srcbuf, num_planes);
	}

	alloc_cdef_row_sync(cm, &cdef_sync->cdef_row_mt,
	cdef_info->allocated_mi_rows);
	}

	// Assumes cm->rst_info[p].restoration_unit_size is already initialized
	void av1_alloc_restoration_buffers(AV1_COMMON *cm) {
	const int num_planes = av1_num_planes(cm);
	for (int p = 0; p < num_planes; ++p)
	av1_alloc_restoration_struct(cm, &cm->rst_info[p], p > 0);

	if (cm->rst_tmpbuf == NULL) {
	CHECK_MEM_ERROR(cm, cm->rst_tmpbuf,
	(int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE));
	}

	if (cm->rlbs == NULL) {
	CHECK_MEM_ERROR(cm, cm->rlbs, aom_malloc(sizeof(RestorationLineBuffers)));
	}

	// For striped loop restoration, we divide each row of tiles into "stripes",
	// of height 64 luma pixels but with an offset by RESTORATION_UNIT_OFFSET
	// luma pixels to match the output from CDEF. We will need to store 2 *
	// RESTORATION_CTX_VERT lines of data for each stripe, and also need to be
	// able to quickly answer the question "Where is the <n>'th stripe for tile
	// row <m>?" To make that efficient, we generate the rst_last_stripe array.
	int num_stripes = 0;
	for (int i = 0; i < cm->tiles.rows; ++i) {
	TileInfo tile_info;
	av1_tile_set_row(&tile_info, cm, i);
	const int mi_h = tile_info.mi_row_end - tile_info.mi_row_start;
	const int ext_h = RESTORATION_UNIT_OFFSET + (mi_h << MI_SIZE_LOG2);
	const int tile_stripes = (ext_h + 63) / 64;
	num_stripes += tile_stripes;
	}

	// Now we need to allocate enough space to store the line buffers for the
	// stripes
	const int frame_w = cm->superres_upscaled_width;
	const int use_highbd = cm->seq_params->use_highbitdepth;

	for (int p = 0; p < num_planes; ++p) {
	const int is_uv = p > 0;
	const int ss_x = is_uv && cm->seq_params->subsampling_x;
	const int plane_w = ((frame_w + ss_x) >> ss_x) + 2 * RESTORATION_EXTRA_HORZ;
	const int stride = ALIGN_POWER_OF_TWO(plane_w, 5);
	const int buf_size = num_stripes * stride * RESTORATION_CTX_VERT
	<< use_highbd;
	RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;

	if (buf_size != boundaries->stripe_boundary_size \|\|
	boundaries->stripe_boundary_above == NULL \|\|
	boundaries->stripe_boundary_below == NULL) {
	aom_free(boundaries->stripe_boundary_above);
	aom_free(boundaries->stripe_boundary_below);

	CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_above,
	(uint8_t *)aom_memalign(32, buf_size));
	CHECK_MEM_ERROR(cm, boundaries->stripe_boundary_below,
	(uint8_t *)aom_memalign(32, buf_size));

	boundaries->stripe_boundary_size = buf_size;
	}
	boundaries->stripe_boundary_stride = stride;
	}
	}

	void av1_free_restoration_buffers(AV1_COMMON *cm) {
	int p;
	for (p = 0; p < MAX_MB_PLANE; ++p)
	av1_free_restoration_struct(&cm->rst_info[p]);
	aom_free(cm->rst_tmpbuf);
	cm->rst_tmpbuf = NULL;
	aom_free(cm->rlbs);
	cm->rlbs = NULL;
	for (p = 0; p < MAX_MB_PLANE; ++p) {
	RestorationStripeBoundaries *boundaries = &cm->rst_info[p].boundaries;
	aom_free(boundaries->stripe_boundary_above);
	aom_free(boundaries->stripe_boundary_below);
	boundaries->stripe_boundary_above = NULL;
	boundaries->stripe_boundary_below = NULL;
	}

	aom_free_frame_buffer(&cm->rst_frame);
	}

	void av1_free_above_context_buffers(CommonContexts *above_contexts) {
	int i;
	const int num_planes = above_contexts->num_planes;

	for (int tile_row = 0; tile_row < above_contexts->num_tile_rows; tile_row++) {
	for (i = 0; i < num_planes; i++) {
	aom_free(above_contexts->entropy[i][tile_row]);
	above_contexts->entropy[i][tile_row] = NULL;
	}
	aom_free(above_contexts->partition[tile_row]);
	above_contexts->partition[tile_row] = NULL;

	aom_free(above_contexts->txfm[tile_row]);
	above_contexts->txfm[tile_row] = NULL;
	}
	for (i = 0; i < num_planes; i++) {
	aom_free(above_contexts->entropy[i]);
	above_contexts->entropy[i] = NULL;
	}
	aom_free(above_contexts->partition);
	above_contexts->partition = NULL;

	aom_free(above_contexts->txfm);
	above_contexts->txfm = NULL;

	above_contexts->num_tile_rows = 0;
	above_contexts->num_mi_cols = 0;
	above_contexts->num_planes = 0;
	}

	void av1_free_context_buffers(AV1_COMMON *cm) {
	cm->mi_params.free_mi(&cm->mi_params);

	av1_free_above_context_buffers(&cm->above_contexts);
	}

	int av1_alloc_above_context_buffers(CommonContexts *above_contexts,
	int num_tile_rows, int num_mi_cols,
	int num_planes) {
	const int aligned_mi_cols =
	ALIGN_POWER_OF_TWO(num_mi_cols, MAX_MIB_SIZE_LOG2);

	// Allocate above context buffers
	above_contexts->num_tile_rows = num_tile_rows;
	above_contexts->num_mi_cols = aligned_mi_cols;
	above_contexts->num_planes = num_planes;
	for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
	above_contexts->entropy[plane_idx] = (ENTROPY_CONTEXT **)aom_calloc(
	num_tile_rows, sizeof(above_contexts->entropy[0]));
	if (!above_contexts->entropy[plane_idx]) return 1;
	}

	above_contexts->partition = (PARTITION_CONTEXT **)aom_calloc(
	num_tile_rows, sizeof(above_contexts->partition));
	if (!above_contexts->partition) return 1;

	above_contexts->txfm =
	(TXFM_CONTEXT **)aom_calloc(num_tile_rows, sizeof(above_contexts->txfm));
	if (!above_contexts->txfm) return 1;

	for (int tile_row = 0; tile_row < num_tile_rows; tile_row++) {
	for (int plane_idx = 0; plane_idx < num_planes; plane_idx++) {
	above_contexts->entropy[plane_idx][tile_row] =
	(ENTROPY_CONTEXT *)aom_calloc(
	aligned_mi_cols, sizeof(*above_contexts->entropy[0][tile_row]));
	if (!above_contexts->entropy[plane_idx][tile_row]) return 1;
	}

	above_contexts->partition[tile_row] = (PARTITION_CONTEXT *)aom_calloc(
	aligned_mi_cols, sizeof(*above_contexts->partition[tile_row]));
	if (!above_contexts->partition[tile_row]) return 1;

	above_contexts->txfm[tile_row] = (TXFM_CONTEXT *)aom_calloc(
	aligned_mi_cols, sizeof(*above_contexts->txfm[tile_row]));
	if (!above_contexts->txfm[tile_row]) return 1;
	}

	return 0;
	}

	// Allocate the dynamically allocated arrays in 'mi_params' assuming
	// 'mi_params->set_mb_mi()' was already called earlier to initialize the rest of
	// the struct members.
	static int alloc_mi(CommonModeInfoParams *mi_params) {
	const int aligned_mi_rows = calc_mi_size(mi_params->mi_rows);
	const int mi_grid_size = mi_params->mi_stride * aligned_mi_rows;
	const int alloc_size_1d = mi_size_wide[mi_params->mi_alloc_bsize];
	const int alloc_mi_size =
	mi_params->mi_alloc_stride * (aligned_mi_rows / alloc_size_1d);

	if (mi_params->mi_alloc_size < alloc_mi_size \|\|
	mi_params->mi_grid_size < mi_grid_size) {
	mi_params->free_mi(mi_params);

	mi_params->mi_alloc =
	aom_calloc(alloc_mi_size, sizeof(*mi_params->mi_alloc));
	if (!mi_params->mi_alloc) return 1;
	mi_params->mi_alloc_size = alloc_mi_size;

	mi_params->mi_grid_base = (MB_MODE_INFO **)aom_calloc(
	mi_grid_size, sizeof(*mi_params->mi_grid_base));
	if (!mi_params->mi_grid_base) return 1;
	mi_params->mi_grid_size = mi_grid_size;

	mi_params->tx_type_map =
	aom_calloc(mi_grid_size, sizeof(*mi_params->tx_type_map));
	if (!mi_params->tx_type_map) return 1;
	}

	return 0;
	}

	int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height,
	BLOCK_SIZE min_partition_size) {
	CommonModeInfoParams *const mi_params = &cm->mi_params;
	mi_params->set_mb_mi(mi_params, width, height, min_partition_size);
	if (alloc_mi(mi_params)) goto fail;
	return 0;

	fail:
	// clear the mi_* values to force a realloc on resync
	mi_params->set_mb_mi(mi_params, 0, 0, BLOCK_4X4);
	av1_free_context_buffers(cm);
	return 1;
	}

	void av1_remove_common(AV1_COMMON *cm) {
	av1_free_context_buffers(cm);

	aom_free(cm->fc);
	cm->fc = NULL;
	aom_free(cm->default_frame_context);
	cm->default_frame_context = NULL;
	}

	void av1_init_mi_buffers(CommonModeInfoParams *mi_params) {
	mi_params->setup_mi(mi_params);
	}