git.sesse.net Git - ffmpeg/blob - libavfilter/blend.h

   1 /*
   2  * Copyright (c) 2013 Paul B Mahol
   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 #ifndef AVFILTER_BLEND_H
  22 #define AVFILTER_BLEND_H
  23
  24 #include "libavutil/eval.h"
  25 #include "avfilter.h"
  26
  27 enum BlendMode {
  28     BLEND_UNSET = -1,
  29     BLEND_NORMAL,
  30     BLEND_ADDITION,
  31     BLEND_AND,
  32     BLEND_AVERAGE,
  33     BLEND_BURN,
  34     BLEND_DARKEN,
  35     BLEND_DIFFERENCE,
  36     BLEND_GRAINEXTRACT,
  37     BLEND_DIVIDE,
  38     BLEND_DODGE,
  39     BLEND_EXCLUSION,
  40     BLEND_HARDLIGHT,
  41     BLEND_LIGHTEN,
  42     BLEND_MULTIPLY,
  43     BLEND_NEGATION,
  44     BLEND_OR,
  45     BLEND_OVERLAY,
  46     BLEND_PHOENIX,
  47     BLEND_PINLIGHT,
  48     BLEND_REFLECT,
  49     BLEND_SCREEN,
  50     BLEND_SOFTLIGHT,
  51     BLEND_SUBTRACT,
  52     BLEND_VIVIDLIGHT,
  53     BLEND_XOR,
  54     BLEND_HARDMIX,
  55     BLEND_LINEARLIGHT,
  56     BLEND_GLOW,
  57     BLEND_GRAINMERGE,
  58     BLEND_MULTIPLY128,
  59     BLEND_HEAT,
  60     BLEND_FREEZE,
  61     BLEND_EXTREMITY,
  62     BLEND_NB
  63 };
  64
  65 typedef struct FilterParams {
  66     enum BlendMode mode;
  67     double opacity;
  68     AVExpr *e;
  69     char *expr_str;
  70     void (*blend)(const uint8_t *top, ptrdiff_t top_linesize,
  71                   const uint8_t *bottom, ptrdiff_t bottom_linesize,
  72                   uint8_t *dst, ptrdiff_t dst_linesize,
  73                   ptrdiff_t width, ptrdiff_t height,
  74                   struct FilterParams *param, double *values, int starty);
  75 } FilterParams;
  76
  77 void ff_blend_init(FilterParams *param, int depth);
  78 void ff_blend_init_x86(FilterParams *param, int depth);
  79
  80 #endif /* AVFILTER_BLEND_H */