vf_fade.c File Reference

video fade filter based heavily on vf_negate.c by Bobby Bingham More...

#include "libavutil/common.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  FadeContext
 

Functions

static av_cold int init (AVFilterContext *ctx, const char *args)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_props (AVFilterLink *inlink)
 
static int filter_frame (AVFilterLink *inlink, AVFilterBufferRef *frame)
 

Variables

static const AVFilterPad avfilter_vf_fade_inputs []
 
static const AVFilterPad avfilter_vf_fade_outputs []
 
AVFilter avfilter_vf_fade
 

Detailed Description

video fade filter based heavily on vf_negate.c by Bobby Bingham

Definition in file vf_fade.c.

Function Documentation

static int config_props ( AVFilterLink inlink)
static

Definition at line 89 of file vf_fade.c.

static int filter_frame ( AVFilterLink inlink,
AVFilterBufferRef frame 
)
static

Definition at line 101 of file vf_fade.c.

static av_cold int init ( AVFilterContext ctx,
const char *  args 
)
static

Definition at line 41 of file vf_fade.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 74 of file vf_fade.c.

Variable Documentation

AVFilter avfilter_vf_fade
Initial value:
= {
.name = "fade",
.description = NULL_IF_CONFIG_SMALL("Fade in/out input video"),
.init = init,
.priv_size = sizeof(FadeContext),
}
static const AVFilterPad avfilter_vf_fade_outputs[]
Definition: vf_fade.c:159
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:122
static av_cold int init(AVFilterContext *ctx, const char *args)
Definition: vf_fade.c:41
static int query_formats(AVFilterContext *ctx)
Definition: vf_fade.c:74
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:88
static const AVFilterPad avfilter_vf_fade_inputs[]
Definition: vf_fade.c:146
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:110

Definition at line 167 of file vf_fade.c.

const AVFilterPad avfilter_vf_fade_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_props,
.get_video_buffer = ff_null_get_video_buffer,
.filter_frame = filter_frame,
.min_perms = AV_PERM_READ | AV_PERM_WRITE,
.rej_perms = AV_PERM_PRESERVE,
},
{ NULL }
}
static int config_props(AVFilterLink *inlink)
Definition: vf_fade.c:89
#define AV_PERM_READ
can read from the buffer
Definition: avfilter.h:97
NULL
Definition: eval.c:52
static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *frame)
Definition: vf_fade.c:101
#define AV_PERM_PRESERVE
nobody else can overwrite the buffer
Definition: avfilter.h:99
#define AV_PERM_WRITE
can write to the buffer
Definition: avfilter.h:98
AVFilterBufferRef * ff_null_get_video_buffer(AVFilterLink *link, int perms, int w, int h)
Definition: video.c:72

Definition at line 146 of file vf_fade.c.

const AVFilterPad avfilter_vf_fade_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}
NULL
Definition: eval.c:52

Definition at line 159 of file vf_fade.c.