vsrc_color.c File Reference

color source More...

#include <stdio.h>
#include <string.h>
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
#include "libavutil/pixdesc.h"
#include "libavutil/colorspace.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "drawutils.h"

Go to the source code of this file.

Data Structures
struct	ColorContext

Macros
#define	OFFSET(x)   offsetof(ColorContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM

Functions
static av_cold int	color_init (AVFilterContext *ctx)
static av_cold void	color_uninit (AVFilterContext *ctx)
static int	query_formats (AVFilterContext *ctx)
static int	color_config_props (AVFilterLink *inlink)
static int	color_request_frame (AVFilterLink *link)

Variables
static const AVOption	options []
static const AVClass	color_class
static const AVFilterPad	avfilter_vsrc_color_outputs []
AVFilter	ff_vsrc_color

Detailed Description

color source

Definition in file vsrc_color.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(ColorContext, x)

Definition at line 162 of file vsrc_color.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 163 of file vsrc_color.c.

Function Documentation

static av_cold int color_init ( AVFilterContext *  ctx )

static

Definition at line 57 of file vsrc_color.c.

static av_cold void color_uninit ( AVFilterContext *  ctx )

static

Definition at line 82 of file vsrc_color.c.

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 93 of file vsrc_color.c.

static int color_config_props ( AVFilterLink *  inlink )

static

Definition at line 114 of file vsrc_color.c.

static int color_request_frame ( AVFilterLink *  link )

static

Definition at line 145 of file vsrc_color.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "color",     "Output video color",                         OFFSET(color_str),     AV_OPT_TYPE_STRING, { .str = "black"   }, .flags = FLAGS },
    { "size",      "Output video size (wxh or an abbreviation)", OFFSET(size_str),      AV_OPT_TYPE_STRING, { .str = "320x240" }, .flags = FLAGS },
    { "framerate", "Output video framerate",                     OFFSET(framerate_str), AV_OPT_TYPE_STRING, { .str = "25"      }, .flags = FLAGS },
    { NULL },
}

Definition at line 164 of file vsrc_color.c.

const AVClass color_class

static

Initial value:

= {
    .class_name = "color",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 171 of file vsrc_color.c.

const AVFilterPad avfilter_vsrc_color_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .request_frame = color_request_frame,
        .config_props  = color_config_props
    },
    { NULL }
}

Definition at line 178 of file vsrc_color.c.

AVFilter ff_vsrc_color

Initial value:

= {
    .name        = "color",
    .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input, syntax is: [color[:size[:rate]]]"),

    .priv_class = &color_class,
    .priv_size = sizeof(ColorContext),
    .init      = color_init,
    .uninit    = color_uninit,

    .query_formats = query_formats,

    .inputs    = NULL,

    .outputs   = avfilter_vsrc_color_outputs,
}

Definition at line 188 of file vsrc_color.c.