FFmpeg
Data Structures | Macros | Functions | Variables
vf_despill.c File Reference
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  DespillContext
 

Macros

#define OFFSET(x)   offsetof(DespillContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

static int do_despill_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_frame (AVFilterLink *link, AVFrame *frame)
 
static av_cold int config_output (AVFilterLink *outlink)
 
static av_cold int query_formats (AVFilterContext *ctx)
 
 AVFILTER_DEFINE_CLASS (despill)
 

Variables

static const AVFilterPad despill_inputs []
 
static const AVFilterPad despill_outputs []
 
static const AVOption despill_options []
 
const AVFilter ff_vf_despill
 

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(DespillContext, x)

Definition at line 147 of file vf_despill.c.

◆ FLAGS

Definition at line 148 of file vf_despill.c.

Function Documentation

◆ do_despill_slice()

static int do_despill_slice ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 43 of file vf_despill.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink link,
AVFrame frame 
)
static

Definition at line 92 of file vf_despill.c.

◆ config_output()

static av_cold int config_output ( AVFilterLink outlink)
static

Definition at line 104 of file vf_despill.c.

◆ query_formats()

static av_cold int query_formats ( AVFilterContext ctx)
static

Definition at line 117 of file vf_despill.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( despill  )

Variable Documentation

◆ despill_inputs

const AVFilterPad despill_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
},
}

Definition at line 130 of file vf_despill.c.

◆ despill_outputs

const AVFilterPad despill_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
},
}

Definition at line 139 of file vf_despill.c.

◆ despill_options

const AVOption despill_options[]
static
Initial value:
= {
{ "type", "set the screen type", OFFSET(type), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "type" },
{ "green", "greenscreen", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "type" },
{ "blue", "bluescreen", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "type" },
{ "mix", "set the spillmap mix", OFFSET(spillmix), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, FLAGS },
{ "expand", "set the spillmap expand", OFFSET(spillexpand), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, FLAGS },
{ "red", "set red scale", OFFSET(redscale), AV_OPT_TYPE_FLOAT, {.dbl=0}, -100, 100, FLAGS },
{ "green", "set green scale", OFFSET(greenscale), AV_OPT_TYPE_FLOAT, {.dbl=-1}, -100, 100, FLAGS },
{ "blue", "set blue scale", OFFSET(bluescale), AV_OPT_TYPE_FLOAT, {.dbl=0}, -100, 100, FLAGS },
{ "brightness", "set brightness", OFFSET(brightness), AV_OPT_TYPE_FLOAT, {.dbl=0}, -10, 10, FLAGS },
{ "alpha", "change alpha component", OFFSET(alpha), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ NULL }
}

Definition at line 150 of file vf_despill.c.

◆ ff_vf_despill

const AVFilter ff_vf_despill
Initial value:
= {
.name = "despill",
.description = NULL_IF_CONFIG_SMALL("Despill video."),
.priv_size = sizeof(DespillContext),
.priv_class = &despill_class,
.process_command = ff_filter_process_command,
}

Definition at line 166 of file vf_despill.c.

filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: vf_despill.c:92
OFFSET
#define OFFSET(x)
Definition: vf_despill.c:147
FLAGS
#define FLAGS
Definition: vf_despill.c:148
config_output
static av_cold int config_output(AVFilterLink *outlink)
Definition: vf_despill.c:104
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:152
NULL
#define NULL
Definition: coverity.c:32
query_formats
static av_cold int query_formats(AVFilterContext *ctx)
Definition: vf_despill.c:117
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:883
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:130
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:227
despill_inputs
static const AVFilterPad despill_inputs[]
Definition: vf_despill.c:130
DespillContext
Definition: vf_despill.c:28
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
despill_outputs
static const AVFilterPad despill_outputs[]
Definition: vf_despill.c:139
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
alpha
static const int16_t alpha[]
Definition: ilbcdata.h:55
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:153
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
AVFILTERPAD_FLAG_NEEDS_WRITABLE
#define AVFILTERPAD_FLAG_NEEDS_WRITABLE
The filter expects writable frames from its input link, duplicating data buffers if needed.
Definition: internal.h:69