libavcodec/flacdsp.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_FLACDSP_H
  20 #define AVCODEC_FLACDSP_H
  21
  22 #include <stdint.h>
  23
  24 #include "libavutil/samplefmt.h"
  25
  26 typedef struct FLACDSPContext {
  27     void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels,
  28                            int len, int shift);
  29     void (*lpc16)(int32_t *samples, const int coeffs[32], int order,
  30                   int qlevel, int len);
  31     void (*lpc32)(int32_t *samples, const int coeffs[32], int order,
  32                   int qlevel, int len);
  33     void (*lpc33)(int64_t *samples, const int32_t *residual, const int coeffs[32],
  34                   int pred_order, int qlevel, int len);
  35     void (*wasted32)(int32_t *decoded, int wasted, int len);
  36     void (*wasted33)(int64_t *decoded, const int32_t *residual,
  37                      int wasted, int len);
  38     void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order,
  39                          const int32_t coefs[32], int shift);
  40     void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order,
  41                          const int32_t coefs[32], int shift);
  42 } FLACDSPContext;
  43
  44 void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
  45 void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
  46 void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
  47 void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels);
  48
  49 #endif /* AVCODEC_FLACDSP_H */