vf_colorchannelmixer.c File Reference

#include "libavutil/opt.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ColorChannelMixerContext

Macros
#define	R   0
#define	G   1
#define	B   2
#define	A   3
#define	OFFSET(x)   offsetof(ColorChannelMixerContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS (colorchannelmixer)
static int	query_formats (AVFilterContext *ctx)
static int	config_output (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	colorchannelmixer_options []
static const AVFilterPad	colorchannelmixer_inputs []
static const AVFilterPad	colorchannelmixer_outputs []
AVFilter	avfilter_vf_colorchannelmixer

Macro Definition Documentation

#define R   0

Definition at line 28 of file vf_colorchannelmixer.c.

#define G   1

Definition at line 29 of file vf_colorchannelmixer.c.

#define B   2

Definition at line 30 of file vf_colorchannelmixer.c.

#define A   3

Definition at line 31 of file vf_colorchannelmixer.c.

#define OFFSET

(

x

)

offsetof(ColorChannelMixerContext, x)

Definition at line 47 of file vf_colorchannelmixer.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 48 of file vf_colorchannelmixer.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

colorchannelmixer

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 71 of file vf_colorchannelmixer.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 88 of file vf_colorchannelmixer.c.

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

static

Definition at line 140 of file vf_colorchannelmixer.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 325 of file vf_colorchannelmixer.c.

Variable Documentation

const AVOption colorchannelmixer_options[]

static

Initial value:

= {
    { "rr", "set the red gain for the red channel",     OFFSET(rr), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
    { "rg", "set the green gain for the red channel",   OFFSET(rg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "rb", "set the blue gain for the red channel",    OFFSET(rb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "ra", "set the alpha gain for the red channel",   OFFSET(ra), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "gr", "set the red gain for the green channel",   OFFSET(gr), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "gg", "set the green gain for the green channel", OFFSET(gg), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
    { "gb", "set the blue gain for the green channel",  OFFSET(gb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "ga", "set the alpha gain for the green channel", OFFSET(ga), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "br", "set the red gain for the blue channel",    OFFSET(br), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "bg", "set the green gain for the blue channel",  OFFSET(bg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "bb", "set the blue gain for the blue channel",   OFFSET(bb), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
    { "ba", "set the alpha gain for the blue channel",  OFFSET(ba), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "ar", "set the red gain for the alpha channel",   OFFSET(ar), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "ag", "set the green gain for the alpha channel", OFFSET(ag), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "ab", "set the blue gain for the alpha channel",  OFFSET(ab), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
    { "aa", "set the alpha gain for the alpha channel", OFFSET(aa), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
    { NULL }
}

Definition at line 49 of file vf_colorchannelmixer.c.

const AVFilterPad colorchannelmixer_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 332 of file vf_colorchannelmixer.c.

const AVFilterPad colorchannelmixer_outputs[]

static

Initial value:

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

Definition at line 341 of file vf_colorchannelmixer.c.

AVFilter avfilter_vf_colorchannelmixer

Initial value:

= {
    .name          = "colorchannelmixer",
    .description   = NULL_IF_CONFIG_SMALL("Adjust colors by mixing color channels."),
    .priv_size     = sizeof(ColorChannelMixerContext),
    .priv_class    = &colorchannelmixer_class,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = colorchannelmixer_inputs,
    .outputs       = colorchannelmixer_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 350 of file vf_colorchannelmixer.c.