ffmpeg/libavcodec/dcadsp.h

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef AVCODEC_DCADSP_H
  20 #define AVCODEC_DCADSP_H
  21
  22 #include "avfft.h"
  23 #include "synth_filter.h"
  24
  25 #define DCA_SUBBANDS 64
  26
  27 typedef struct DCADSPContext {
  28     void (*lfe_fir[2])(float *out, const float *in, const float *coefs);
  29     void (*qmf_32_subbands)(float samples_in[32][8], int sb_act,
  30                             SynthFilterContext *synth, FFTContext *imdct,
  31                             float synth_buf_ptr[512],
  32                             int *synth_buf_offset, float synth_buf2[32],
  33                             const float window[512], float *samples_out,
  34                             float raXin[32], float scale);
  35     void (*decode_hf)(float dst[DCA_SUBBANDS][8],
  36                       const int32_t vq_num[DCA_SUBBANDS],
  37                       const int8_t hf_vq[1024][32], intptr_t vq_offset,
  38                       int32_t scale[DCA_SUBBANDS][2],
  39                       intptr_t start, intptr_t end);
  40 } DCADSPContext;
  41
  42 void ff_dcadsp_init(DCADSPContext *s);
  43 void ff_dcadsp_init_arm(DCADSPContext *s);
  44 void ff_dcadsp_init_x86(DCADSPContext *s);
  45
  46 #endif /* AVCODEC_DCADSP_H */