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ffmpeg-4.2.2/libavcodec/dcadsp.h 3.89 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (C) 2016 foo86
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * FFmpeg is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #ifndef AVCODEC_DCADSP_H
  #define AVCODEC_DCADSP_H
  
  #include "libavutil/common.h"
  
  #include "fft.h"
  #include "dcadct.h"
  #include "synth_filter.h"
  
  typedef struct DCADSPContext {
      void (*decode_hf)(int32_t **dst,
                        const int32_t *vq_index,
                        const int8_t hf_vq[1024][32],
                        int32_t scale_factors[32][2],
                        ptrdiff_t sb_start, ptrdiff_t sb_end,
                        ptrdiff_t ofs, ptrdiff_t len);
  
      void (*decode_joint)(int32_t **dst, int32_t **src,
                           const int32_t *scale_factors,
                           ptrdiff_t sb_start, ptrdiff_t sb_end,
                           ptrdiff_t ofs, ptrdiff_t len);
  
      void (*lfe_fir_float[2])(float *pcm_samples, int32_t *lfe_samples,
                               const float *filter_coeff, ptrdiff_t npcmblocks);
  
      void (*lfe_x96_float)(float *dst, const float *src,
                            float *hist, ptrdiff_t len);
  
      void (*sub_qmf_float[2])(SynthFilterContext *synth,
                               FFTContext *imdct,
                               float *pcm_samples,
                               int32_t **subband_samples_lo,
                               int32_t **subband_samples_hi,
                               float *hist1, int *offset, float *hist2,
                               const float *filter_coeff, ptrdiff_t npcmblocks,
                               float scale);
  
      void (*lfe_fir_fixed)(int32_t *pcm_samples, int32_t *lfe_samples,
                            const int32_t *filter_coeff, ptrdiff_t npcmblocks);
  
      void (*lfe_x96_fixed)(int32_t *dst, const int32_t *src,
                            int32_t *hist, ptrdiff_t len);
  
      void (*sub_qmf_fixed[2])(SynthFilterContext *synth,
                               DCADCTContext *imdct,
                               int32_t *pcm_samples,
                               int32_t **subband_samples_lo,
                               int32_t **subband_samples_hi,
                               int32_t *hist1, int *offset, int32_t *hist2,
                               const int32_t *filter_coeff, ptrdiff_t npcmblocks);
  
      void (*decor)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  
      void (*dmix_sub_xch)(int32_t *dst1, int32_t *dst2,
                           const int32_t *src, ptrdiff_t len);
  
      void (*dmix_sub)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  
      void (*dmix_add)(int32_t *dst, const int32_t *src, int coeff, ptrdiff_t len);
  
      void (*dmix_scale)(int32_t *dst, int scale, ptrdiff_t len);
  
      void (*dmix_scale_inv)(int32_t *dst, int scale_inv, ptrdiff_t len);
  
      void (*assemble_freq_bands)(int32_t *dst, int32_t *src0, int32_t *src1,
                                  const int32_t *coeff, ptrdiff_t len);
  
      void (*lbr_bank)(float output[32][4], float **input,
                       const float *coeff, ptrdiff_t ofs, ptrdiff_t len);
  
      void (*lfe_iir)(float *output, const float *input,
                      const float iir[5][4], float hist[5][2],
                      ptrdiff_t factor);
  } DCADSPContext;
  
  av_cold void ff_dcadsp_init(DCADSPContext *s);
  av_cold void ff_dcadsp_init_x86(DCADSPContext *s);
  
  #endif