FFmpeg
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 depth);
78 void ff_blend_init_x86(FilterParams *param, int depth);
79 
80 #endif /* AVFILTER_BLEND_H */
BLEND_GLOW
@ BLEND_GLOW
Definition: blend.h:56
BLEND_EXCLUSION
@ BLEND_EXCLUSION
Definition: blend.h:39
FilterParams::expr_str
char * expr_str
Definition: blend.h:69
FilterParams::e
AVExpr * e
Definition: blend.h:68
BLEND_NEGATION
@ BLEND_NEGATION
Definition: blend.h:43
BLEND_ADDITION
@ BLEND_ADDITION
Definition: blend.h:30
BLEND_MULTIPLY128
@ BLEND_MULTIPLY128
Definition: blend.h:58
BLEND_NB
@ BLEND_NB
Definition: blend.h:62
BLEND_DIVIDE
@ BLEND_DIVIDE
Definition: blend.h:37
BLEND_PHOENIX
@ BLEND_PHOENIX
Definition: blend.h:46
ff_blend_init
void ff_blend_init(FilterParams *param, int depth)
Definition: vf_blend.c:747
BLEND_AND
@ BLEND_AND
Definition: blend.h:31
BLEND_SOFTLIGHT
@ BLEND_SOFTLIGHT
Definition: blend.h:50
width
#define width
BLEND_OR
@ BLEND_OR
Definition: blend.h:44
BLEND_SCREEN
@ BLEND_SCREEN
Definition: blend.h:49
AVExpr
Definition: eval.c:157
BLEND_EXTREMITY
@ BLEND_EXTREMITY
Definition: blend.h:61
BLEND_PINLIGHT
@ BLEND_PINLIGHT
Definition: blend.h:47
FilterParams::mode
enum BlendMode mode
Definition: blend.h:66
BLEND_MULTIPLY
@ BLEND_MULTIPLY
Definition: blend.h:42
BlendMode
BlendMode
Definition: blend.h:27
ff_blend_init_x86
void ff_blend_init_x86(FilterParams *param, int depth)
Definition: vf_blend_init.c:103
BLEND_SUBTRACT
@ BLEND_SUBTRACT
Definition: blend.h:51
BLEND_FREEZE
@ BLEND_FREEZE
Definition: blend.h:60
FilterParams
filter data
Definition: mlp.h:74
BLEND_LIGHTEN
@ BLEND_LIGHTEN
Definition: blend.h:41
BLEND_HEAT
@ BLEND_HEAT
Definition: blend.h:59
eval.h
BLEND_DODGE
@ BLEND_DODGE
Definition: blend.h:38
height
#define height
BLEND_HARDLIGHT
@ BLEND_HARDLIGHT
Definition: blend.h:40
BLEND_VIVIDLIGHT
@ BLEND_VIVIDLIGHT
Definition: blend.h:52
BLEND_DIFFERENCE
@ BLEND_DIFFERENCE
Definition: blend.h:35
BLEND_HARDMIX
@ BLEND_HARDMIX
Definition: blend.h:54
BLEND_GRAINMERGE
@ BLEND_GRAINMERGE
Definition: blend.h:57
avfilter.h
values
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return values
Definition: filter_design.txt:263
BLEND_XOR
@ BLEND_XOR
Definition: blend.h:53
BLEND_DARKEN
@ BLEND_DARKEN
Definition: blend.h:34
BLEND_AVERAGE
@ BLEND_AVERAGE
Definition: blend.h:32
FilterParams::opacity
double opacity
Definition: blend.h:67
FilterParams::blend
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
BLEND_BURN
@ BLEND_BURN
Definition: blend.h:33
BLEND_REFLECT
@ BLEND_REFLECT
Definition: blend.h:48
BLEND_GRAINEXTRACT
@ BLEND_GRAINEXTRACT
Definition: blend.h:36
BLEND_UNSET
@ BLEND_UNSET
Definition: blend.h:28
BLEND_LINEARLIGHT
@ BLEND_LINEARLIGHT
Definition: blend.h:55
BLEND_NORMAL
@ BLEND_NORMAL
Definition: blend.h:29
BLEND_OVERLAY
@ BLEND_OVERLAY
Definition: blend.h:45