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  1. /*
  2.  * Common stuff for some Microsoft Screen codecs
  3.  * Copyright (C) 2012 Konstantin Shishkov
  4.  *
  5.  * This file is part of FFmpeg.
  6.  *
  7.  * FFmpeg is free software; you can redistribute it and/or
  8.  * modify it under the terms of the GNU Lesser General Public
  9.  * License as published by the Free Software Foundation; either
  10.  * version 2.1 of the License, or (at your option) any later version.
  11.  *
  12.  * FFmpeg is distributed in the hope that it will be useful,
  13.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15.  * Lesser General Public License for more details.
  16.  *
  17.  * You should have received a copy of the GNU Lesser General Public
  18.  * License along with FFmpeg; if not, write to the Free Software
  19.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20.  */
  21.  
  22. #ifndef AVCODEC_MSS34DSP_H
  23. #define AVCODEC_MSS34DSP_H
  24.  
  25. #include <stdint.h>
  26.  
  27. /**
  28.  * Generate quantisation matrix for given quality.
  29.  *
  30.  * @param qmat    destination matrix
  31.  * @param quality quality setting (1-100)
  32.  * @param luma    generate quantisation matrix for luma or chroma
  33.  */
  34. void ff_mss34_gen_quant_mat(uint16_t *qmat, int quality, int luma);
  35.  
  36. /**
  37.  * Transform and output DCT block.
  38.  *
  39.  * @param dst     output plane
  40.  * @param stride  output plane stride
  41.  * @param block   block to transform and output
  42.  */
  43. void ff_mss34_dct_put(uint8_t *dst, int stride, int *block);
  44.  
  45. #endif /* AVCODEC_MSS34DSP_H */
  46.