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  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. #include "libavutil/samplefmt.h"
  24.  
  25. typedef struct FLACDSPContext {
  26.     void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels,
  27.                            int len, int shift);
  28.     void (*lpc16)(int32_t *samples, const int coeffs[32], int order,
  29.                   int qlevel, int len);
  30.     void (*lpc32)(int32_t *samples, const int coeffs[32], int order,
  31.                   int qlevel, int len);
  32.     void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order,
  33.                          const int32_t coefs[32], int shift);
  34.     void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order,
  35.                          const int32_t coefs[32], int shift);
  36. } FLACDSPContext;
  37.  
  38. void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
  39. void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
  40. void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
  41.  
  42. #endif /* AVCODEC_FLACDSP_H */
  43.