Commit | Line | Data |
---|---|---|
2ba45a60 DM |
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_PS_H | |
23 | #define AVCODEC_PS_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; | |
43 | int enable_iid; | |
44 | int iid_quant; | |
45 | int nr_iid_par; | |
46 | int nr_ipdopd_par; | |
47 | int enable_icc; | |
48 | int icc_mode; | |
49 | int nr_icc_par; | |
50 | int enable_ext; | |
51 | int frame_class; | |
52 | int num_env_old; | |
53 | int num_env; | |
54 | int enable_ipdopd; | |
55 | int border_position[PS_MAX_NUM_ENV+1]; | |
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; | |
62 | int is34bands_old; | |
63 | ||
64 | DECLARE_ALIGNED(16, float, in_buf)[5][44][2]; | |
65 | DECLARE_ALIGNED(16, float, delay)[PS_MAX_SSB][PS_QMF_TIME_SLOTS + PS_MAX_DELAY][2]; | |
66 | DECLARE_ALIGNED(16, float, ap_delay)[PS_MAX_AP_BANDS][PS_AP_LINKS][PS_QMF_TIME_SLOTS + PS_MAX_AP_DELAY][2]; | |
67 | DECLARE_ALIGNED(16, float, peak_decay_nrg)[34]; | |
68 | DECLARE_ALIGNED(16, float, power_smooth)[34]; | |
69 | DECLARE_ALIGNED(16, float, peak_decay_diff_smooth)[34]; | |
70 | DECLARE_ALIGNED(16, float, H11)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
71 | DECLARE_ALIGNED(16, float, H12)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
72 | DECLARE_ALIGNED(16, float, H21)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
73 | DECLARE_ALIGNED(16, float, H22)[2][PS_MAX_NUM_ENV+1][PS_MAX_NR_IIDICC]; | |
74 | int8_t opd_hist[PS_MAX_NR_IIDICC]; | |
75 | int8_t ipd_hist[PS_MAX_NR_IIDICC]; | |
76 | PSDSPContext dsp; | |
77 | } PSContext; | |
78 | ||
79 | void ff_ps_init(void); | |
80 | void ff_ps_ctx_init(PSContext *ps); | |
81 | int ff_ps_read_data(AVCodecContext *avctx, GetBitContext *gb, PSContext *ps, int bits_left); | |
82 | int ff_ps_apply(AVCodecContext *avctx, PSContext *ps, float L[2][38][64], float R[2][38][64], int top); | |
83 | ||
84 | #endif /* AVCODEC_PS_H */ |