libavcodec/dcadsp.h

   1 /*
   2  * Copyright (C) 2016 foo86
   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_DCADSP_H
  22 #define AVCODEC_DCADSP_H
  23
  24 #include "libavutil/common.h"
  25 #include "libavutil/tx.h"
  26
  27 #include "dcadct.h"
  28 #include "synth_filter.h"
  29
  30 typedef struct DCADSPContext {
  31     void (*decode_hf)(int32_t **dst,
  32                       const int32_t *vq_index,
  33                       const int8_t hf_vq[1024][32],
  34                       int32_t scale_factors[32][2],
  35                       ptrdiff_t sb_start, ptrdiff_t sb_end,
  36                       ptrdiff_t ofs, ptrdiff_t len);
  37
  38     void (*decode_joint)(int32_t **dst, int32_t **src,
  39                          const int32_t *scale_factors,
  40                          ptrdiff_t sb_start, ptrdiff_t sb_end,
  41                          ptrdiff_t ofs, ptrdiff_t len);
  42
  43     void (*lfe_fir_float[2])(float *pcm_samples, int32_t *lfe_samples,
  44                              const float *filter_coeff, ptrdiff_t npcmblocks);
  45
  46     void (*lfe_x96_float)(float *dst, const float *src,
  47                           float *hist, ptrdiff_t len);
  48
  49     void (*sub_qmf_float[2])(SynthFilterContext *synth,
  50                              AVTXContext *imdct,
  51                              av_tx_fn imdct_fn,
  52                              float *pcm_samples,
  53                              int32_t **subband_samples_lo,
  54                              int32_t **subband_samples_hi,
  55                              float *hist1, int *offset, float *hist2,
  56                              const float *filter_coeff, ptrdiff_t npcmblocks,
  57                              float scale);
  58
  59     void (*lfe_fir_fixed)(int32_t *pcm_samples, int32_t *lfe_samples,
  60                           const int32_t *filter_coeff, ptrdiff_t npcmblocks);
  61
  62     void (*lfe_x96_fixed)(int32_t *dst, const int32_t *src,
  63                           int32_t *hist, ptrdiff_t len);
  64
  65     void (*sub_qmf_fixed[2])(SynthFilterContext *synth,
  66                              DCADCTContext *imdct,
  67                              int32_t *pcm_samples,
  68                              int32_t **subband_samples_lo,
  69                              int32_t **subband_samples_hi,
  70                              int32_t *hist1, int *offset, int32_t *hist2,
  71                              const int32_t *filter_coeff, ptrdiff_t npcmblocks);
  72
  73     void (*decor)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  74
  75     void (*dmix_sub_xch)(int32_t *dst1, int32_t *dst2,
  76                          const int32_t *src, ptrdiff_t len);
  77
  78     void (*dmix_sub)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  79
  80     void (*dmix_add)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  81
  82     void (*dmix_scale)(int32_t *dst, int scale, ptrdiff_t len);
  83
  84     void (*dmix_scale_inv)(int32_t *dst, int scale_inv, ptrdiff_t len);
  85
  86     void (*assemble_freq_bands)(int32_t *dst, int32_t *src0, int32_t *src1,
  87                                 const int32_t *coeff, ptrdiff_t len);
  88
  89     void (*lbr_bank)(float output[32][4], float **input,
  90                      const float *coeff, ptrdiff_t ofs, ptrdiff_t len);
  91
  92     void (*lfe_iir)(float *output, const float *input,
  93                     const float iir[5][4], float hist[5][2],
  94                     ptrdiff_t factor);
  95 } DCADSPContext;
  96
  97 av_cold void ff_dcadsp_init(DCADSPContext *s);
  98 av_cold void ff_dcadsp_init_x86(DCADSPContext *s);
  99
 100 #endif