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blend.h
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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 {
63 };
64 
65 typedef struct FilterParams {
67  double opacity;
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 is_16bit);
78 void ff_blend_init_x86(FilterParams *param, int is_16bit);
79 
80 #endif /* AVFILTER_BLEND_H */
AVExpr * e
Definition: blend.h:68
double opacity
Definition: blend.h:67
Main libavfilter public API header.
Definition: blend.h:62
uint8_t
char * expr_str
Definition: blend.h:69
Definition: eval.c:157
#define height
enum BlendMode mode
Definition: blend.h:66
#define width
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
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)
Definition: blend.h:70
void ff_blend_init_x86(FilterParams *param, int is_16bit)
filter data
Definition: mlp.h:74
BlendMode
Definition: blend.h:27
Definition: blend.h:44
void ff_blend_init(FilterParams *param, int is_16bit)
Definition: vf_blend.c:464
simple arithmetic expression evaluator