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

Go to the source code of this file.

Data Structures

struct  ShowPaletteContext
 

Macros

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

Functions

 AVFILTER_DEFINE_CLASS (showpalette)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 
static void disp_palette (AVFrame *out, const AVFrame *in, int size)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 

Variables

static const AVOption showpalette_options []
 
static const AVFilterPad showpalette_inputs []
 
static const AVFilterPad showpalette_outputs []
 
const AVFilter ff_vf_showpalette
 

Detailed Description

Display frame palette (AV_PIX_FMT_PAL8)

Definition in file vf_showpalette.c.

Macro Definition Documentation

◆ OFFSET

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

Definition at line 35 of file vf_showpalette.c.

◆ FLAGS

Definition at line 36 of file vf_showpalette.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( showpalette  )

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 44 of file vf_showpalette.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 57 of file vf_showpalette.c.

◆ disp_palette()

static void disp_palette ( AVFrame out,
const AVFrame in,
int  size 
)
static

Definition at line 65 of file vf_showpalette.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 79 of file vf_showpalette.c.

Variable Documentation

◆ showpalette_options

const AVOption showpalette_options[]
static
Initial value:
= {
{ "s", "set pixel box size", OFFSET(size), AV_OPT_TYPE_INT, {.i64=30}, 1, 100, FLAGS },
{ NULL }
}

Definition at line 37 of file vf_showpalette.c.

◆ showpalette_inputs

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

Definition at line 97 of file vf_showpalette.c.

◆ showpalette_outputs

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

Definition at line 105 of file vf_showpalette.c.

◆ ff_vf_showpalette

const AVFilter ff_vf_showpalette
Initial value:
= {
.name = "showpalette",
.description = NULL_IF_CONFIG_SMALL("Display frame palette."),
.priv_size = sizeof(ShowPaletteContext),
.priv_class = &showpalette_class,
}

Definition at line 113 of file vf_showpalette.c.

FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:167
ShowPaletteContext
Definition: vf_showpalette.c:30
FLAGS
#define FLAGS
Definition: vf_showpalette.c:36
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_showpalette.c:44
showpalette_outputs
static const AVFilterPad showpalette_outputs[]
Definition: vf_showpalette.c:105
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
NULL
#define NULL
Definition: coverity.c:32
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:116
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_showpalette.c:79
size
int size
Definition: twinvq_data.h:10344
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_showpalette.c:57
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
showpalette_inputs
static const AVFilterPad showpalette_inputs[]
Definition: vf_showpalette.c:97
OFFSET
#define OFFSET(x)
Definition: vf_showpalette.c:35