libavcodec/mss34dsp.h

   1 /*
   2  * Common stuff for some Microsoft Screen codecs
   3  * Copyright (C) 2012 Konstantin Shishkov
   4  *
   5  * This file is part of Libav.
   6  *
   7  * Libav 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  * Libav 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 Libav; 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 */