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  1. /*
  2.  * Apple ProRes compatible decoder
  3.  *
  4.  * Copyright (c) 2010-2011 Maxim Poliakovski
  5.  *
  6.  * This file is part of FFmpeg.
  7.  *
  8.  * FFmpeg is free software; you can redistribute it and/or
  9.  * modify it under the terms of the GNU Lesser General Public
  10.  * License as published by the Free Software Foundation; either
  11.  * version 2.1 of the License, or (at your option) any later version.
  12.  *
  13.  * FFmpeg is distributed in the hope that it will be useful,
  14.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16.  * Lesser General Public License for more details.
  17.  *
  18.  * You should have received a copy of the GNU Lesser General Public
  19.  * License along with FFmpeg; if not, write to the Free Software
  20.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  21.  */
  22.  
  23. #ifndef AVCODEC_PRORESDSP_H
  24. #define AVCODEC_PRORESDSP_H
  25.  
  26. #include <stdint.h>
  27. #include "dsputil.h"
  28.  
  29. #define PRORES_BITS_PER_SAMPLE 10 ///< output precision of prores decoder
  30.  
  31. typedef struct ProresDSPContext {
  32.     int idct_permutation_type;
  33.     uint8_t idct_permutation[64];
  34.     int dct_permutation_type;
  35.     uint8_t dct_permutation[64];
  36.     void (* idct_put) (uint16_t *out, int linesize, int16_t *block, const int16_t *qmat);
  37.     void (* fdct) (const uint16_t *src, int linesize, int16_t *block);
  38. } ProresDSPContext;
  39.  
  40. void ff_proresdsp_init(ProresDSPContext *dsp, AVCodecContext *avctx);
  41.  
  42. void ff_proresdsp_x86_init(ProresDSPContext *dsp, AVCodecContext *avctx);
  43.  
  44. #endif /* AVCODEC_PRORESDSP_H */
  45.