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Import aom library
This is the reference implementation for the Alliance for Open Media's av1 video code. The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
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trav90
Roy Tam
parent
eb8cd130a8
commit
edc8d83307
989 changed files with 470949 additions and 0 deletions
209
third_party/aom/av1/common/alloccommon.c
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third_party/aom/av1/common/alloccommon.c
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/*
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*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "./aom_config.h"
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#include "aom_mem/aom_mem.h"
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#include "av1/common/alloccommon.h"
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#include "av1/common/blockd.h"
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#include "av1/common/entropymode.h"
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#include "av1/common/entropymv.h"
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#include "av1/common/onyxc_int.h"
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void av1_set_mb_mi(AV1_COMMON *cm, int width, int height) {
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// TODO(jingning): Fine tune the loop filter operations and bring this
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// back to integer multiple of 4 for cb4x4.
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const int aligned_width = ALIGN_POWER_OF_TWO(width, 3);
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const int aligned_height = ALIGN_POWER_OF_TWO(height, 3);
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cm->mi_cols = aligned_width >> MI_SIZE_LOG2;
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cm->mi_rows = aligned_height >> MI_SIZE_LOG2;
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cm->mi_stride = calc_mi_size(cm->mi_cols);
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#if CONFIG_CB4X4
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cm->mb_cols = (cm->mi_cols + 2) >> 2;
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cm->mb_rows = (cm->mi_rows + 2) >> 2;
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#else
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cm->mb_cols = (cm->mi_cols + 1) >> 1;
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cm->mb_rows = (cm->mi_rows + 1) >> 1;
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#endif
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cm->MBs = cm->mb_rows * cm->mb_cols;
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}
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static int alloc_seg_map(AV1_COMMON *cm, int seg_map_size) {
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int i;
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for (i = 0; i < NUM_PING_PONG_BUFFERS; ++i) {
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cm->seg_map_array[i] = (uint8_t *)aom_calloc(seg_map_size, 1);
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if (cm->seg_map_array[i] == NULL) return 1;
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}
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cm->seg_map_alloc_size = seg_map_size;
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// Init the index.
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cm->seg_map_idx = 0;
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cm->prev_seg_map_idx = 1;
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cm->current_frame_seg_map = cm->seg_map_array[cm->seg_map_idx];
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if (!cm->frame_parallel_decode)
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cm->last_frame_seg_map = cm->seg_map_array[cm->prev_seg_map_idx];
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return 0;
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}
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static void free_seg_map(AV1_COMMON *cm) {
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int i;
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for (i = 0; i < NUM_PING_PONG_BUFFERS; ++i) {
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aom_free(cm->seg_map_array[i]);
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cm->seg_map_array[i] = NULL;
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}
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cm->current_frame_seg_map = NULL;
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if (!cm->frame_parallel_decode) {
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cm->last_frame_seg_map = NULL;
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}
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}
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void av1_free_ref_frame_buffers(BufferPool *pool) {
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int i;
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for (i = 0; i < FRAME_BUFFERS; ++i) {
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if (pool->frame_bufs[i].ref_count > 0 &&
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pool->frame_bufs[i].raw_frame_buffer.data != NULL) {
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pool->release_fb_cb(pool->cb_priv, &pool->frame_bufs[i].raw_frame_buffer);
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pool->frame_bufs[i].ref_count = 0;
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}
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aom_free(pool->frame_bufs[i].mvs);
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pool->frame_bufs[i].mvs = NULL;
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aom_free_frame_buffer(&pool->frame_bufs[i].buf);
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}
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}
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#if CONFIG_LOOP_RESTORATION
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// Assumes cm->rst_info[p].restoration_tilesize is already initialized
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void av1_alloc_restoration_buffers(AV1_COMMON *cm) {
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int p;
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av1_alloc_restoration_struct(cm, &cm->rst_info[0], cm->width, cm->height);
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for (p = 1; p < MAX_MB_PLANE; ++p)
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av1_alloc_restoration_struct(
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cm, &cm->rst_info[p], ROUND_POWER_OF_TWO(cm->width, cm->subsampling_x),
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ROUND_POWER_OF_TWO(cm->height, cm->subsampling_y));
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aom_free(cm->rst_internal.tmpbuf);
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CHECK_MEM_ERROR(cm, cm->rst_internal.tmpbuf,
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(int32_t *)aom_memalign(16, RESTORATION_TMPBUF_SIZE));
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}
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void av1_free_restoration_buffers(AV1_COMMON *cm) {
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int p;
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for (p = 0; p < MAX_MB_PLANE; ++p)
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av1_free_restoration_struct(&cm->rst_info[p]);
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aom_free(cm->rst_internal.tmpbuf);
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cm->rst_internal.tmpbuf = NULL;
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}
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#endif // CONFIG_LOOP_RESTORATION
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void av1_free_context_buffers(AV1_COMMON *cm) {
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int i;
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cm->free_mi(cm);
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free_seg_map(cm);
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for (i = 0; i < MAX_MB_PLANE; i++) {
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aom_free(cm->above_context[i]);
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cm->above_context[i] = NULL;
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}
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aom_free(cm->above_seg_context);
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cm->above_seg_context = NULL;
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#if CONFIG_VAR_TX
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aom_free(cm->above_txfm_context);
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cm->above_txfm_context = NULL;
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#endif
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}
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int av1_alloc_context_buffers(AV1_COMMON *cm, int width, int height) {
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int new_mi_size;
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av1_set_mb_mi(cm, width, height);
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new_mi_size = cm->mi_stride * calc_mi_size(cm->mi_rows);
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if (cm->mi_alloc_size < new_mi_size) {
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cm->free_mi(cm);
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if (cm->alloc_mi(cm, new_mi_size)) goto fail;
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}
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if (cm->seg_map_alloc_size < cm->mi_rows * cm->mi_cols) {
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// Create the segmentation map structure and set to 0.
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free_seg_map(cm);
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if (alloc_seg_map(cm, cm->mi_rows * cm->mi_cols)) goto fail;
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}
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if (cm->above_context_alloc_cols < cm->mi_cols) {
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// TODO(geza.lore): These are bigger than they need to be.
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// cm->tile_width would be enough but it complicates indexing a
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// little elsewhere.
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const int aligned_mi_cols =
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ALIGN_POWER_OF_TWO(cm->mi_cols, MAX_MIB_SIZE_LOG2);
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int i;
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for (i = 0; i < MAX_MB_PLANE; i++) {
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aom_free(cm->above_context[i]);
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cm->above_context[i] = (ENTROPY_CONTEXT *)aom_calloc(
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2 * aligned_mi_cols, sizeof(*cm->above_context[0]));
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if (!cm->above_context[i]) goto fail;
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}
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aom_free(cm->above_seg_context);
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cm->above_seg_context = (PARTITION_CONTEXT *)aom_calloc(
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aligned_mi_cols, sizeof(*cm->above_seg_context));
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if (!cm->above_seg_context) goto fail;
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#if CONFIG_VAR_TX
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aom_free(cm->above_txfm_context);
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cm->above_txfm_context = (TXFM_CONTEXT *)aom_calloc(
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aligned_mi_cols, sizeof(*cm->above_txfm_context));
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if (!cm->above_txfm_context) goto fail;
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#endif
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cm->above_context_alloc_cols = aligned_mi_cols;
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}
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return 0;
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fail:
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// clear the mi_* values to force a realloc on resync
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av1_set_mb_mi(cm, 0, 0);
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av1_free_context_buffers(cm);
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return 1;
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}
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void av1_remove_common(AV1_COMMON *cm) {
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av1_free_context_buffers(cm);
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aom_free(cm->fc);
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cm->fc = NULL;
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aom_free(cm->frame_contexts);
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cm->frame_contexts = NULL;
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}
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void av1_init_context_buffers(AV1_COMMON *cm) {
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cm->setup_mi(cm);
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if (cm->last_frame_seg_map && !cm->frame_parallel_decode)
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memset(cm->last_frame_seg_map, 0, cm->mi_rows * cm->mi_cols);
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}
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void av1_swap_current_and_last_seg_map(AV1_COMMON *cm) {
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// Swap indices.
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const int tmp = cm->seg_map_idx;
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cm->seg_map_idx = cm->prev_seg_map_idx;
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cm->prev_seg_map_idx = tmp;
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cm->current_frame_seg_map = cm->seg_map_array[cm->seg_map_idx];
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cm->last_frame_seg_map = cm->seg_map_array[cm->prev_seg_map_idx];
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}
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