/* * Copyright (c) 2013 Paul B Mahol * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVFILTER_BLEND_H#define AVFILTER_BLEND_H #include "libavutil/eval.h"#include "avfilter.h" enum BlendMode {    BLEND_UNSET = -1,    BLEND_NORMAL,    BLEND_ADDITION,    BLEND_AND,    BLEND_AVERAGE,    BLEND_BURN,    BLEND_DARKEN,    BLEND_DIFFERENCE,    BLEND_DIFFERENCE128,    BLEND_DIVIDE,    BLEND_DODGE,    BLEND_EXCLUSION,    BLEND_HARDLIGHT,    BLEND_LIGHTEN,    BLEND_MULTIPLY,    BLEND_NEGATION,    BLEND_OR,    BLEND_OVERLAY,    BLEND_PHOENIX,    BLEND_PINLIGHT,    BLEND_REFLECT,    BLEND_SCREEN,    BLEND_SOFTLIGHT,    BLEND_SUBTRACT,    BLEND_VIVIDLIGHT,    BLEND_XOR,    BLEND_HARDMIX,    BLEND_LINEARLIGHT,    BLEND_GLOW,    BLEND_ADDITION128,    BLEND_MULTIPLY128,    BLEND_HEAT,    BLEND_FREEZE,    BLEND_NB}; typedef struct FilterParams {    enum BlendMode mode;    double opacity;    AVExpr *e;    char *expr_str;    void (*blend)(const uint8_t *top, ptrdiff_t top_linesize,                  const uint8_t *bottom, ptrdiff_t bottom_linesize,                  uint8_t *dst, ptrdiff_t dst_linesize,                  ptrdiff_t width, ptrdiff_t height,                  struct FilterParams *param, double *values, int starty);} FilterParams; void ff_blend_init(FilterParams *param, int is_16bit);void ff_blend_init_x86(FilterParams *param, int is_16bit); #endif /* AVFILTER_BLEND_H */