1/*
2 * AAC encoder main-type prediction
3 * Copyright (C) 2015 Rostislav Pehlivanov
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * AAC encoder main-type prediction
25 * @author Rostislav Pehlivanov ( atomnuker gmail com )
26 */
27
28#ifndef AVCODEC_AACENC_PRED_H
29#define AVCODEC_AACENC_PRED_H
30
31#include "aacenc.h"
32
33/* Every predictor group needs to get reset at least once in this many frames */
34#define PRED_RESET_FRAME_MIN 240
35
36/* Any frame with less than this amount of frames since last reset is ok */
37#define PRED_RESET_MIN 64
38
39/* Raise to filter any low frequency artifacts due to prediction */
40#define PRED_SFB_START 10
41
42void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce);
43void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe);
44void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce);
45void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce);
46
47#endif /* AVCODEC_AACENC_PRED_H */
48