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  1. /*
  2.  * Canopus HQ/HQA decoder
  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. /**
  22.  * @file
  23.  * HQ/HQA variant of AAN IDCT
  24.  * It differs from the standard AAN IDCT in precision and in the second stage.
  25.  */
  26.  
  27. #ifndef AVCODEC_HQ_HQADSP_H
  28. #define AVCODEC_HQ_HQADSP_H
  29.  
  30. #include <stdint.h>
  31.  
  32. typedef struct HQDSPContext {
  33.     void (*idct_put)(uint8_t *dst, int stride, int16_t *block);
  34. } HQDSPContext;
  35.  
  36. void ff_hqdsp_init(HQDSPContext *c);
  37.  
  38. #endif /* AVCODEC_HQ_HQADSP_H */
  39.