libavcodec/synth_filter.h

   1 /*
   2  * copyright (c) 2008 Michael Niedermayer <michaelni@gmx.at>
   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_SYNTH_FILTER_H
  22 #define AVCODEC_SYNTH_FILTER_H
  23
  24 #include "libavutil/tx.h"
  25 #include "dcadct.h"
  26
  27 typedef struct SynthFilterContext {
  28     void (*synth_filter_float)(AVTXContext *imdct,
  29                                float *synth_buf_ptr, int *synth_buf_offset,
  30                                float synth_buf2[32], const float window[512],
  31                                float out[32], float in[32],
  32                                float scale, av_tx_fn imdct_fn);
  33     void (*synth_filter_float_64)(AVTXContext *imdct,
  34                                   float *synth_buf_ptr, int *synth_buf_offset,
  35                                   float synth_buf2[64], const float window[1024],
  36                                   float out[64], float in[64], float scale,
  37                                   av_tx_fn imdct_fn);
  38     void (*synth_filter_fixed)(DCADCTContext *imdct,
  39                                int32_t *synth_buf_ptr, int *synth_buf_offset,
  40                                int32_t synth_buf2[32], const int32_t window[512],
  41                                int32_t out[32], const int32_t in[32]);
  42     void (*synth_filter_fixed_64)(DCADCTContext *imdct,
  43                                   int32_t *synth_buf_ptr, int *synth_buf_offset,
  44                                   int32_t synth_buf2[64], const int32_t window[1024],
  45                                   int32_t out[64], const int32_t in[64]);
  46 } SynthFilterContext;
  47
  48 void ff_synth_filter_init(SynthFilterContext *c);
  49 void ff_synth_filter_init_aarch64(SynthFilterContext *c);
  50 void ff_synth_filter_init_arm(SynthFilterContext *c);
  51 void ff_synth_filter_init_x86(SynthFilterContext *c);
  52
  53 #endif /* AVCODEC_SYNTH_FILTER_H */