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  1. /*
  2.  * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
  3.  * Copyright (c) 2003-2011 Michael Niedermayer <michaelni@gmx.at>
  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. /**
  23.  * @file
  24.  * H.264 / AVC / MPEG4 part10 DSP functions.
  25.  * @author Michael Niedermayer <michaelni@gmx.at>
  26.  */
  27.  
  28. #include "bit_depth_template.c"
  29.  
  30. static void FUNCC(ff_h264_add_pixels4)(uint8_t *_dst, int16_t *_src, int stride)
  31. {
  32.     int i;
  33.     pixel *dst = (pixel *) _dst;
  34.     dctcoef *src = (dctcoef *) _src;
  35.     stride /= sizeof(pixel);
  36.  
  37.     for (i = 0; i < 4; i++) {
  38.         dst[0] += src[0];
  39.         dst[1] += src[1];
  40.         dst[2] += src[2];
  41.         dst[3] += src[3];
  42.  
  43.         dst += stride;
  44.         src += 4;
  45.     }
  46.  
  47.     memset(_src, 0, sizeof(dctcoef) * 16);
  48. }
  49.  
  50. static void FUNCC(ff_h264_add_pixels8)(uint8_t *_dst, int16_t *_src, int stride)
  51. {
  52.     int i;
  53.     pixel *dst = (pixel *) _dst;
  54.     dctcoef *src = (dctcoef *) _src;
  55.     stride /= sizeof(pixel);
  56.  
  57.     for (i = 0; i < 8; i++) {
  58.         dst[0] += src[0];
  59.         dst[1] += src[1];
  60.         dst[2] += src[2];
  61.         dst[3] += src[3];
  62.         dst[4] += src[4];
  63.         dst[5] += src[5];
  64.         dst[6] += src[6];
  65.         dst[7] += src[7];
  66.  
  67.         dst += stride;
  68.         src += 8;
  69.     }
  70.  
  71.     memset(_src, 0, sizeof(dctcoef) * 64);
  72. }
  73.