chromium/third_party/libvpx/source/libvpx/vp8/encoder/lookahead.c

/*
 *  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */
#include <assert.h>
#include <stdlib.h>
#include "vpx_config.h"
#include "lookahead.h"
#include "vp8/common/extend.h"

#define MAX_LAG_BUFFERS …

struct lookahead_ctx { … };

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

void vp8_lookahead_destroy(struct lookahead_ctx *ctx) { … }

struct lookahead_ctx *vp8_lookahead_init(unsigned int width,
                                         unsigned int height,
                                         unsigned int depth) { … }

int vp8_lookahead_push(struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src,
                       int64_t ts_start, int64_t ts_end, unsigned int flags,
                       unsigned char *active_map) { … }

struct lookahead_entry *vp8_lookahead_pop(struct lookahead_ctx *ctx,
                                          int drain) { … }

struct lookahead_entry *vp8_lookahead_peek(struct lookahead_ctx *ctx,
                                           unsigned int index, int direction) { … }

unsigned int vp8_lookahead_depth(struct lookahead_ctx *ctx) { … }