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/*
*
* 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/blockd.h"
#include "av1/common/entropymode.h"
#include "av1/common/entropymv.h"
#include "av1/common/onyxc_int.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;
}
#if LOOP_FILTER_BITMASK
static int alloc_loop_filter_mask(AV1_COMMON *cm) {
aom_free(cm->lf.lfm);
cm->lf.lfm = NULL;
// Each lfm holds bit masks for all the 4x4 blocks in a max
// 64x64 (128x128 for ext_partitions) region. The stride
// and rows are rounded up / truncated to a multiple of 16
// (32 for ext_partition).
cm->lf.lfm_stride = (cm->mi_cols + (MI_SIZE_64X64 - 1)) >> MIN_MIB_SIZE_LOG2;
cm->lf.lfm_num = ((cm->mi_rows + (MI_SIZE_64X64 - 1)) >> MIN_MIB_SIZE_LOG2) *
cm->lf.lfm_stride;
cm->lf.lfm =
(LoopFilterMask *)aom_calloc(cm->lf.lfm_num, sizeof(*cm->lf.lfm));
if (!cm->lf.lfm) return 1;
unsigned int i;
for (i = 0; i < cm->lf.lfm_num; ++i) av1_zero(cm->lf.lfm[i]);
return 0;
}
static void free_loop_filter_mask(AV1_COMMON *cm) {
if (cm->lf.lfm == NULL) return;
aom_free(cm->lf.lfm);
cm->lf.lfm = NULL;
cm->lf.lfm_num = 0;
cm->lf.lfm_stride = 0;
}
#endif
void av1_set_mb_mi(AV1_COMMON *cm, int width, int height) {
// Ensure that the decoded width and height are both multiples of
// 8 luma pixels (note: this may only be a multiple of 4 chroma pixels if
// subsampling is used).
// This simplifies the implementation of various experiments,
// eg. cdef, which operates on units of 8x8 luma pixels.
const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
cm->mi_stride = calc_mi_size(cm->mi_cols);
cm->mb_cols = (cm->mi_cols + 2) >> 2;
cm->mb_rows = (cm->mi_rows + 2) >> 2;
cm->MBs = cm->mb_rows * cm->mb_cols;
#if LOOP_FILTER_BITMASK
alloc_loop_filter_mask(cm);
#endif
}
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);
}
}
// 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->tile_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 ? 1 : 0;
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(AV1_COMMON *cm,
int num_free_above_contexts) {
int i;
const int num_planes = cm->num_allocated_above_context_planes;
for (int tile_row = 0; tile_row < num_free_above_contexts; tile_row++) {
for (i = 0; i < num_planes; i++) {
aom_free(cm->above_context[i][tile_row]);
cm->above_context[i][tile_row] = NULL;
}
aom_free(cm->above_seg_context[tile_row]);
cm->above_seg_context[tile_row] = NULL;
aom_free(cm->above_txfm_context[tile_row]);
cm->above_txfm_context[tile_row] = NULL;
}
for (i = 0; i < num_planes; i++) {
aom_free(cm->above_context[i]);
cm->above_context[i] = NULL;
}
aom_free(cm->above_seg_context);
cm->above_seg_context = NULL;
aom_free(cm->above_txfm_context);
cm->above_txfm_context = NULL;
cm->num_allocated_above_contexts = 0;
cm->num_allocated_above_context_mi_col = 0;
cm->num_allocated_above_context_planes = 0;
}
void av1_free_context_buffers(AV1_COMMON *cm) {
cm->free_mi(cm);
av1_free_above_context_buffers(cm, cm->num_allocated_above_contexts);
#if LOOP_FILTER_BITMASK
free_loop_filter_mask(cm);
#endif
}
int av1_alloc_above_context_buffers(AV1_COMMON *cm,
int num_alloc_above_contexts) {
const int num_planes = av1_num_planes(cm);
int plane_idx;
const int aligned_mi_cols =
ALIGN_POWER_OF_TWO(cm->mi_cols, MAX_MIB_SIZE_LOG2);
// Allocate above context buffers
cm->num_allocated_above_contexts = num_alloc_above_contexts;
cm->num_allocated_above_context_mi_col = aligned_mi_cols;
cm->num_allocated_above_context_planes = num_planes;
for (plane_idx = 0; plane_idx < num_planes; plane_idx++) {
cm->above_context[plane_idx] = (ENTROPY_CONTEXT **)aom_calloc(
num_alloc_above_contexts, sizeof(cm->above_context[0]));
if (!cm->above_context[plane_idx]) return 1;
}
cm->above_seg_context = (PARTITION_CONTEXT **)aom_calloc(
num_alloc_above_contexts, sizeof(cm->above_seg_context));
if (!cm->above_seg_context) return 1;
cm->above_txfm_context = (TXFM_CONTEXT **)aom_calloc(
num_alloc_above_contexts, sizeof(cm->above_txfm_context));
if (!cm->above_txfm_context) return 1;
for (int tile_row = 0; tile_row < num_alloc_above_contexts; tile_row++) {
for (plane_idx = 0; plane_idx < num_planes; plane_idx++) {
cm->above_context[plane_idx][tile_row] = (ENTROPY_CONTEXT *)aom_calloc(
aligned_mi_cols, sizeof(*cm->above_context[0][tile_row]));
if (!cm->above_context[plane_idx][tile_row]) return 1;
}
cm->above_seg_context[tile_row] = (PARTITION_CONTEXT *)aom_calloc(
aligned_mi_cols, sizeof(*cm->above_seg_context[tile_row]));
if (!cm->above_seg_context[tile_row]) return 1;
cm->above_txfm_context[tile_row] = (TXFM_CONTEXT *)aom_calloc(
aligned_mi_cols, sizeof(*cm->above_txfm_context[tile_row]));
if (!cm->above_txfm_context[tile_row]) return 1;
}
return 0;
}
int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height) {
int new_mi_size;
av1_set_mb_mi(cm, width, height);
new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows);
if (cm->mi_alloc_size < new_mi_size) {
cm->free_mi(cm);
if (cm->alloc_mi(cm, new_mi_size)) goto fail;
}
return 0;
fail:
// clear the mi_* values to force a realloc on resync
av1_set_mb_mi(cm, 0, 0);
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->frame_contexts);
cm->frame_contexts = NULL;
}
void av1_init_context_buffers(AV1_COMMON *cm) { cm->setup_mi(cm); }