libavfilter/vsrc_nullsrc.c File Reference

null video source More...

#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavcore/parseutils.h"
#include "avfilter.h"

Go to the source code of this file.

Data Structures
struct	NullContext
Enumerations
enum	var_name {   VAR_E, VAR_PHI, VAR_PI, VAR_IN_W,   VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,   VAR_OW, VAR_OUT_H, VAR_OH, VAR_X,   VAR_Y, VAR_N, VAR_POS, VAR_T,   VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI,   VAR_MAIN_W, VAR_MW, VAR_MAIN_H, VAR_MH,   VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH,   VAR_VARS_NB, VAR_E, VAR_INTERLACED, VAR_N,   VAR_PHI, VAR_PI, VAR_POS, VAR_PREV_INPTS,   VAR_PREV_OUTPTS, VAR_PTS, VAR_STARTPTS, VAR_TB,   VAR_VARS_NB, VAR_E, VAR_PHI, VAR_PI,   VAR_AVTB, VAR_INTB, VAR_VARS_NB, VAR_E,   VAR_PHI, VAR_PI, VAR_AVTB, VAR_VARS_NB }
Functions
static int	init (AVFilterContext *ctx, const char *args, void *opaque)
static int	config_props (AVFilterLink *outlink)
static int	request_frame (AVFilterLink *link)
Variables
static const char *	var_names []
AVFilter	avfilter_vsrc_nullsrc

---

Detailed Description

null video source

Definition in file vsrc_nullsrc.c.

---

Enumeration Type Documentation

enum var_name

Enumerator:

VAR_E
VAR_PHI
VAR_PI
VAR_IN_W
VAR_IW
VAR_IN_H
VAR_IH
VAR_OUT_W
VAR_OW
VAR_OUT_H
VAR_OH
VAR_X
VAR_Y
VAR_N
VAR_POS
VAR_T
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_MAIN_W
VAR_MW
VAR_MAIN_H
VAR_MH
VAR_OVERLAY_W
VAR_OW
VAR_OVERLAY_H
VAR_OH
VAR_VARS_NB
VAR_E
VAR_INTERLACED
VAR_N
VAR_PHI
VAR_PI
VAR_POS
VAR_PREV_INPTS
VAR_PREV_OUTPTS
VAR_PTS
VAR_STARTPTS
VAR_TB
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_AVTB
VAR_INTB
VAR_VARS_NB
VAR_E
VAR_PHI
VAR_PI
VAR_AVTB
VAR_VARS_NB

Definition at line 37 of file vsrc_nullsrc.c.

---

Function Documentation

static int config_props

(

AVFilterLink *

outlink

)

[static]

Definition at line 70 of file vsrc_nullsrc.c.

static int init	(	AVFilterContext *	ctx,
		const char *	args,
		void *	opaque
	)			[static]

Definition at line 51 of file vsrc_nullsrc.c.

static int request_frame

(

AVFilterLink *

link

)

[static]

Definition at line 106 of file vsrc_nullsrc.c.

---

Variable Documentation

AVFilter avfilter_vsrc_nullsrc

Initial value:

 {
    .name        = "nullsrc",
    .description = NULL_IF_CONFIG_SMALL("Null video source, never return images."),

    .init       = init,
    .priv_size = sizeof(NullContext),

    .inputs    = (AVFilterPad[]) {{ .name = NULL}},

    .outputs   = (AVFilterPad[]) {
        {
            .name            = "default",
            .type            = AVMEDIA_TYPE_VIDEO,
            .config_props    = config_props,
            .request_frame   = request_frame,
        },
        { .name = NULL}
    },
}

Definition at line 111 of file vsrc_nullsrc.c.

const char* var_names[] [static]

Initial value:

 {
    "E",
    "PHI",
    "PI",
    "AVTB",   
    NULL
}

Definition at line 29 of file vsrc_nullsrc.c.