chromium/third_party/libaom/source/libaom/av1/encoder/lookahead.c

/*
 * 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 <assert.h>
#include <stdlib.h>

#include "config/aom_config.h"

#include "aom_scale/yv12config.h"
#include "av1/common/common.h"
#include "av1/encoder/encoder.h"
#include "av1/encoder/extend.h"
#include "av1/encoder/lookahead.h"

/* Return the buffer at the given absolute index and increment the index */
static struct lookahead_entry *pop(struct lookahead_ctx *ctx, int *idx) { … }

void av1_lookahead_destroy(struct lookahead_ctx *ctx) { … }

struct lookahead_ctx *av1_lookahead_init(
    unsigned int width, unsigned int height, unsigned int subsampling_x,
    unsigned int subsampling_y, int use_highbitdepth, unsigned int depth,
    const int border_in_pixels, int byte_alignment, int num_lap_buffers,
    bool is_all_intra, bool alloc_pyramid) { … }

int av1_lookahead_full(const struct lookahead_ctx *ctx) { … }

int av1_lookahead_push(struct lookahead_ctx *ctx, const YV12_BUFFER_CONFIG *src,
                       int64_t ts_start, int64_t ts_end, int use_highbitdepth,
                       bool alloc_pyramid, aom_enc_frame_flags_t flags) { … }

struct lookahead_entry *av1_lookahead_pop(struct lookahead_ctx *ctx, int drain,
                                          COMPRESSOR_STAGE stage) { … }

struct lookahead_entry *av1_lookahead_peek(struct lookahead_ctx *ctx, int index,
                                           COMPRESSOR_STAGE stage) { … }

unsigned int av1_lookahead_depth(struct lookahead_ctx *ctx,
                                 COMPRESSOR_STAGE stage) { … }

int av1_lookahead_pop_sz(struct lookahead_ctx *ctx, COMPRESSOR_STAGE stage) { … }