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aacpsdsp.h
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1 /*
2  * Copyright (c) 2012 Mans Rullgard
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; 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], 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 
53 
54 #endif /* LIBAVCODEC_AACPSDSP_H */