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 AVCODEC_AACPSDSP_H 22 #define AVCODEC_AACPSDSP_H 23 24 #include <stddef.h> 25 26 #include "aac_defines.h" 27 28 #define PS_QMF_TIME_SLOTS 32 29 #define PS_AP_LINKS 3 30 #define PS_MAX_AP_DELAY 5 31 32 typedef struct PSDSPContext { 33 void (*add_squares)(INTFLOAT *dst, const INTFLOAT (*src)[2], int n); 34 void (*mul_pair_single)(INTFLOAT (*dst)[2], INTFLOAT (*src0)[2], INTFLOAT *src1, 35 int n); 36 void (*hybrid_analysis)(INTFLOAT (*out)[2], INTFLOAT (*in)[2], 37 const INTFLOAT (*filter)[8][2], 38 ptrdiff_t stride, int n); 39 void (*hybrid_analysis_ileave)(INTFLOAT (*out)[32][2], INTFLOAT L[2][38][64], 40 int i, int len); 41 void (*hybrid_synthesis_deint)(INTFLOAT out[2][38][64], INTFLOAT (*in)[32][2], 42 int i, int len); 43 void (*decorrelate)(INTFLOAT (*out)[2], INTFLOAT (*delay)[2], 44 INTFLOAT (*ap_delay)[PS_QMF_TIME_SLOTS+PS_MAX_AP_DELAY][2], 45 const INTFLOAT phi_fract[2], const INTFLOAT (*Q_fract)[2], 46 const INTFLOAT *transient_gain, 47 INTFLOAT g_decay_slope, 48 int len); 49 void (*stereo_interpolate[2])(INTFLOAT (*l)[2], INTFLOAT (*r)[2], 50 INTFLOAT h[2][4], INTFLOAT h_step[2][4], 51 int len); 52 } PSDSPContext; 53 54 void AAC_RENAME(ff_psdsp_init)(PSDSPContext *s); 55 void ff_psdsp_init_arm(PSDSPContext *s); 56 void ff_psdsp_init_aarch64(PSDSPContext *s); 57 void ff_psdsp_init_mips(PSDSPContext *s); 58 void ff_psdsp_init_x86(PSDSPContext *s); 59 60 #endif /* AVCODEC_AACPSDSP_H */ 61