libavcodec/aacpsdsp.h

   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_riscv(PSDSPContext *s);
  58 void ff_psdsp_init_x86(PSDSPContext *s);
  59
  60 #endif /* AVCODEC_AACPSDSP_H */