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aacps.h
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1 /*
2  * MPEG-4 Parametric Stereo definitions and declarations
3  * Copyright (c) 2010 Alex Converse <alex.converse@gmail.com>
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 #ifndef AVCODEC_AACPS_H
23 #define AVCODEC_AACPS_H
24 
25 #include <stdint.h>
26 
27 #include "aacpsdsp.h"
28 #include "avcodec.h"
29 #include "get_bits.h"
30 
31 #define PS_MAX_NUM_ENV 5
32 #define PS_MAX_NR_IIDICC 34
33 #define PS_MAX_NR_IPDOPD 17
34 #define PS_MAX_SSB 91
35 #define PS_MAX_AP_BANDS 50
36 #define PS_QMF_TIME_SLOTS 32
37 #define PS_MAX_DELAY 14
38 #define PS_AP_LINKS 3
39 #define PS_MAX_AP_DELAY 5
40 
41 typedef struct PSContext {
42  int start;
44  int iid_quant;
48  int icc_mode;
53  int num_env;
56  int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Intensity Difference Parameters
57  int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-Channel Coherence Parameters
58  /* ipd/opd is iid/icc sized so that the same functions can handle both */
59  int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Inter-channel Phase Difference Parameters
60  int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]; ///< Overall Phase Difference Parameters
61  int is34bands;
63 
64  DECLARE_ALIGNED(16, INTFLOAT, in_buf)[5][44][2];
74  DECLARE_ALIGNED(16, INTFLOAT, Lbuf)[91][32][2];
75  DECLARE_ALIGNED(16, INTFLOAT, Rbuf)[91][32][2];
79 } PSContext;
80 
83 int AAC_RENAME(ff_ps_read_data)(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left);
84 int AAC_RENAME(ff_ps_apply)(AVCodecContext *avctx, PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top);
85 
86 #endif /* AVCODEC_AACPS_H */
int is34bands
Definition: aacps.h:61
INTFLOAT peak_decay_diff_smooth[34]
Definition: aacps.h:69
int nr_iid_par
Definition: aacps.h:45
INTFLOAT peak_decay_nrg[34]
Definition: aacps.h:67
int enable_icc
Definition: aacps.h:47
int enable_ext
Definition: aacps.h:50
INTFLOAT Lbuf[91][32][2]
Definition: aacps.h:74
int enable_ipdopd
Definition: aacps.h:54
int AAC_RENAME() ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left)
Definition: aacps.c:158
void AAC_RENAME() ff_ps_init(void)
Definition: aacps.c:1011
INTFLOAT ap_delay[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2]
Definition: aacps.h:66
float INTFLOAT
Definition: aac_defines.h:86
int enable_iid
Definition: aacps.h:43
INTFLOAT H21[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]
Definition: aacps.h:72
INTFLOAT delay[PS_MAX_SSB][PS_QMF_TIME_SLOTS+PS_MAX_DELAY][2]
Definition: aacps.h:65
#define PS_MAX_AP_DELAY
Definition: aacps.h:39
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
int num_env_old
Definition: aacps.h:52
bitstream reader API header.
#define PS_MAX_NR_IIDICC
Definition: aacps.h:32
#define R
Definition: huffyuvdsp.h:34
int8_t icc_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]
Inter-Channel Coherence Parameters.
Definition: aacps.h:57
int iid_quant
Definition: aacps.h:44
INTFLOAT H22[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]
Definition: aacps.h:73
int num_env
Definition: aacps.h:53
int nr_icc_par
Definition: aacps.h:49
#define AAC_RENAME(x)
Definition: aac_defines.h:84
#define PS_MAX_NUM_ENV
Definition: aacps.h:31
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
#define PS_MAX_SSB
Definition: aacps.h:34
INTFLOAT Rbuf[91][32][2]
Definition: aacps.h:75
int8_t ipd_hist[PS_MAX_NR_IIDICC]
Definition: aacps.h:77
INTFLOAT in_buf[5][44][2]
Definition: aacps.h:64
int8_t ipd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]
Inter-channel Phase Difference Parameters.
Definition: aacps.h:59
#define L(x)
Definition: vp56_arith.h:36
#define PS_MAX_DELAY
Definition: aacps.h:37
PSDSPContext dsp
Definition: aacps.h:78
int start
Definition: aacps.h:42
Libavcodec external API header.
main external API structure.
Definition: avcodec.h:1488
int8_t iid_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]
Inter-channel Intensity Difference Parameters.
Definition: aacps.h:56
void AAC_RENAME() ff_ps_ctx_init(PSContext *ps)
Definition: aacps.c:1043
int is34bands_old
Definition: aacps.h:62
INTFLOAT power_smooth[34]
Definition: aacps.h:68
int8_t opd_hist[PS_MAX_NR_IIDICC]
Definition: aacps.h:76
int border_position[PS_MAX_NUM_ENV+1]
Definition: aacps.h:55
#define PS_AP_LINKS
Definition: aacps.h:38
#define PS_MAX_AP_BANDS
Definition: aacps.h:35
#define PS_QMF_TIME_SLOTS
Definition: aacps.h:36
INTFLOAT H12[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]
Definition: aacps.h:71
int AAC_RENAME() ff_ps_apply(AVCodecContext *avctx, PSContext *ps, INTFLOAT L[2][38][64], INTFLOAT R[2][38][64], int top)
Definition: aacps.c:981
INTFLOAT H11[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]
Definition: aacps.h:70
int frame_class
Definition: aacps.h:51
int nr_ipdopd_par
Definition: aacps.h:46
int8_t opd_par[PS_MAX_NUM_ENV][PS_MAX_NR_IIDICC]
Overall Phase Difference Parameters.
Definition: aacps.h:60
int icc_mode
Definition: aacps.h:48