vf_showpalette.c File Reference

#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.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 (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
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

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 36 of file vf_showpalette.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

showpalette

)

query_formats()

static int query_formats ( const AVFilterContext *  ctx, AVFilterFormatsConfig **  cfg_in, AVFilterFormatsConfig **  cfg_out  )

static

Definition at line 44 of file vf_showpalette.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 59 of file vf_showpalette.c.

disp_palette()

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

static

Definition at line 67 of file vf_showpalette.c.

Referenced by filter_frame().

filter_frame()

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 81 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",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
    },
}

Definition at line 99 of file vf_showpalette.c.

showpalette_outputs

const AVFilterPad showpalette_outputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_output,
    },
}

Definition at line 107 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),
    FILTER_INPUTS(showpalette_inputs),
    FILTER_OUTPUTS(showpalette_outputs),
    FILTER_QUERY_FUNC2(query_formats),
    .priv_class    = &showpalette_class,
}

Definition at line 115 of file vf_showpalette.c.