FFmpeg
aacenc_pred.h
Go to the documentation of this file.
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 
46 
47 #endif /* AVCODEC_AACENC_PRED_H */
AAC encoder context.
Definition: aacenc.h:376
void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe)
Definition: aacenc_pred.c:151
#define s(width, name)
Definition: cbs_vp9.c:257
void ff_aac_apply_main_pred(AACEncContext *s, SingleChannelElement *sce)
Definition: aacenc_pred.c:119
Single Channel Element - used for both SCE and LFE elements.
Definition: aac.h:248
channel element - generic struct for SCE/CPE/CCE/LFE
Definition: aac.h:275
void ff_aac_search_for_pred(AACEncContext *s, SingleChannelElement *sce)
Definition: aacenc_pred.c:233
void ff_aac_encode_main_pred(AACEncContext *s, SingleChannelElement *sce)
Encoder predictors data.
Definition: aacenc_pred.c:332