2 * Copyright (c) 2012 Mans Rullgard
4 * This file is part of FFmpeg.
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.
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.
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
21 #ifndef AVCODEC_AACPSDSP_H
22 #define AVCODEC_AACPSDSP_H
24 #include "aac_defines.h"
26 #define PS_QMF_TIME_SLOTS 32
28 #define PS_MAX_AP_DELAY 5
30 typedef struct PSDSPContext {
31 void (*add_squares)(INTFLOAT *dst, const INTFLOAT (*src)[2], int n);
32 void (*mul_pair_single)(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1,
34 void (*hybrid_analysis)(INTFLOAT (*out)[2], INTFLOAT (*in)[2],
35 const INTFLOAT (*filter)[8][2],
37 void (*hybrid_analysis_ileave)(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64],
39 void (*hybrid_synthesis_deint)(INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2],
41 void (*decorrelate)(INTFLOAT (*out)[2], INTFLOAT (*delay)[2],
42 INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2],
43 const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2],
44 const INTFLOAT *transient_gain,
45 INTFLOAT g_decay_slope,
47 void (*stereo_interpolate[2])(INTFLOAT (*l)[2], INTFLOAT (*r)[2],
48 INTFLOAT h[2][4], INTFLOAT h_step[2][4],
52 void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s);
53 void ff_psdsp_init_arm(PSDSPContext *s);
54 void ff_psdsp_init_mips(PSDSPContext *s);
55 void ff_psdsp_init_x86(PSDSPContext *s);
57 #endif /* AVCODEC_AACPSDSP_H */