vf_extractplanes.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	ExtractPlanesContext

Macros
#define	PLANE_R   0x01
#define	PLANE_G   0x02
#define	PLANE_B   0x04
#define	PLANE_A   0x08
#define	PLANE_Y   0x10
#define	PLANE_U   0x20
#define	PLANE_V   0x40
#define	OFFSET(x)   offsetof(ExtractPlanesContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	AVFILTER_DEFINE_CLASS (extractplanes)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static void	extract_from_packed (uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int width, int height, int depth, int step, int comp)
static int	filter_frame (AVFilterLink *inlink, AVFrame *frame)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	extractplanes_options []
static const AVFilterPad	extractplanes_inputs []
AVFilter	ff_vf_extractplanes

Macro Definition Documentation

#define PLANE_R   0x01

Definition at line 29 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_G   0x02

Definition at line 30 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_B   0x04

Definition at line 31 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_A   0x08

Definition at line 32 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_Y   0x10

Definition at line 33 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_U   0x20

Definition at line 34 of file vf_extractplanes.c.

Referenced by config_input().

#define PLANE_V   0x40

Definition at line 35 of file vf_extractplanes.c.

Referenced by config_input().

#define OFFSET

(

x

)

offsetof(ExtractPlanesContext, x)

Definition at line 47 of file vf_extractplanes.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 48 of file vf_extractplanes.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

extractplanes

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 63 of file vf_extractplanes.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 138 of file vf_extractplanes.c.

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 170 of file vf_extractplanes.c.

Referenced by init().

static void extract_from_packed ( uint8_t *  dst, int  dst_linesize, const uint8_t *  src, int  src_linesize, int  width, int  height, int  depth, int  step, int  comp  )

static

Definition at line 186 of file vf_extractplanes.c.

Referenced by filter_frame().

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

static

Definition at line 211 of file vf_extractplanes.c.

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 259 of file vf_extractplanes.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 286 of file vf_extractplanes.c.

Variable Documentation

const AVOption extractplanes_options[]

static

Initial value:

= {
    { "planes", "set planes",  OFFSET(requested_planes), AV_OPT_TYPE_FLAGS, {.i64=1}, 1, 0xff, FLAGS, "flags"},
    {      "y", "set luma plane",  0, AV_OPT_TYPE_CONST, {.i64=PLANE_Y}, 0, 0, FLAGS, "flags"},
    {      "u", "set u plane",     0, AV_OPT_TYPE_CONST, {.i64=PLANE_U}, 0, 0, FLAGS, "flags"},
    {      "v", "set v plane",     0, AV_OPT_TYPE_CONST, {.i64=PLANE_V}, 0, 0, FLAGS, "flags"},
    {      "r", "set red plane",   0, AV_OPT_TYPE_CONST, {.i64=PLANE_R}, 0, 0, FLAGS, "flags"},
    {      "g", "set green plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_G}, 0, 0, FLAGS, "flags"},
    {      "b", "set blue plane",  0, AV_OPT_TYPE_CONST, {.i64=PLANE_B}, 0, 0, FLAGS, "flags"},
    {      "a", "set alpha plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_A}, 0, 0, FLAGS, "flags"},
    { NULL }
}

Definition at line 49 of file vf_extractplanes.c.

const AVFilterPad extractplanes_inputs[]

static

Initial value:

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

Definition at line 294 of file vf_extractplanes.c.

AVFilter ff_vf_extractplanes

Initial value:

= {
    .name          = "extractplanes",
    .description   = NULL_IF_CONFIG_SMALL("Extract planes as grayscale frames."),
    .priv_size     = sizeof(ExtractPlanesContext),
    .priv_class    = &extractplanes_class,
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = extractplanes_inputs,
    .outputs       = NULL,
    .flags         = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
}

Definition at line 304 of file vf_extractplanes.c.