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1 | /* |
2 | * Copyright (c) 2012 Mans Rullgard | |
3 | * | |
4 | * This file is part of FFmpeg. | |
5 | * | |
6 | * FFmpeg is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * FFmpeg is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with FFmpeg; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef LIBAVCODEC_AACPSDSP_H | |
22 | #define LIBAVCODEC_AACPSDSP_H | |
23 | ||
24 | #define PS_QMF_TIME_SLOTS 32 | |
25 | #define PS_AP_LINKS 3 | |
26 | #define PS_MAX_AP_DELAY 5 | |
27 | ||
28 | typedef struct PSDSPContext { | |
29 | void (*add_squares)(float *dst, const float (*src)[2], int n); | |
30 | void (*mul_pair_single)(float (*dst)[2], float (*src0)[2], float *src1, | |
31 | int n); | |
32 | void (*hybrid_analysis)(float (*out)[2], float (*in)[2], | |
33 | const float (*filter)[8][2], | |
34 | int stride, int n); | |
35 | void (*hybrid_analysis_ileave)(float (*out)[32][2], float L[2][38][64], | |
36 | int i, int len); | |
37 | void (*hybrid_synthesis_deint)(float out[2][38][64], float (*in)[32][2], | |
38 | int i, int len); | |
39 | void (*decorrelate)(float (*out)[2], float (*delay)[2], | |
40 | float (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2], | |
41 | const float phi_fract[2], const float (*Q_fract)[2], | |
42 | const float *transient_gain, | |
43 | float g_decay_slope, | |
44 | int len); | |
45 | void (*stereo_interpolate[2])(float (*l)[2], float (*r)[2], | |
46 | float h[2][4], float h_step[2][4], | |
47 | int len); | |
48 | } PSDSPContext; | |
49 | ||
50 | void ff_psdsp_init(PSDSPContext *s); | |
51 | void ff_psdsp_init_arm(PSDSPContext *s); | |
52 | void ff_psdsp_init_mips(PSDSPContext *s); | |
53 | ||
54 | #endif /* LIBAVCODEC_AACPSDSP_H */ |