vf_swaprect.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	SwapRectContext

Macros
#define	OFFSET(x)   offsetof(SwapRectContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Enumerations
enum	{   VAR_W , VAR_H , VAR_A , VAR_N ,   VAR_T , VAR_POS , VAR_SAR , VAR_DAR ,   VAR_VARS_NB }

Functions
	AVFILTER_DEFINE_CLASS (swaprect)
static int	query_formats (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	config_input (AVFilterLink *inlink)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	swaprect_options []
static const char *const	var_names [] = { "w", "h", "a", "n", "t", "pos", "sar", "dar", NULL }
static const AVFilterPad	inputs []
static const AVFilterPad	outputs []
AVFilter	ff_vf_swaprect

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(SwapRectContext, x)

Definition at line 46 of file vf_swaprect.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 47 of file vf_swaprect.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
VAR_W
VAR_H
VAR_A
VAR_N
VAR_T
VAR_POS
VAR_SAR
VAR_DAR
VAR_VARS_NB

Definition at line 78 of file vf_swaprect.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

swaprect

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 60 of file vf_swaprect.c.

filter_frame()

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

static

Definition at line 80 of file vf_swaprect.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 205 of file vf_swaprect.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 226 of file vf_swaprect.c.

Variable Documentation

swaprect_options

const AVOption swaprect_options[]

static

Initial value:

= {
    { "w",  "set rect width",                     OFFSET(w),  AV_OPT_TYPE_STRING, {.str="w/2"}, 0, 0, .flags = FLAGS },
    { "h",  "set rect height",                    OFFSET(h),  AV_OPT_TYPE_STRING, {.str="h/2"}, 0, 0, .flags = FLAGS },
    { "x1", "set 1st rect x top left coordinate", OFFSET(x1), AV_OPT_TYPE_STRING, {.str="w/2"}, 0, 0, .flags = FLAGS },
    { "y1", "set 1st rect y top left coordinate", OFFSET(y1), AV_OPT_TYPE_STRING, {.str="h/2"}, 0, 0, .flags = FLAGS },
    { "x2", "set 2nd rect x top left coordinate", OFFSET(x2), AV_OPT_TYPE_STRING, {.str="0"},   0, 0, .flags = FLAGS },
    { "y2", "set 2nd rect y top left coordinate", OFFSET(y2), AV_OPT_TYPE_STRING, {.str="0"},   0, 0, .flags = FLAGS },
    { NULL },
}

Definition at line 48 of file vf_swaprect.c.

var_names

const char* const var_names[] = { "w", "h", "a", "n", "t", "pos", "sar", "dar", NULL }

static

Definition at line 77 of file vf_swaprect.c.

Referenced by filter_frame().

inputs

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name           = "default",
        .type           = AVMEDIA_TYPE_VIDEO,
        .filter_frame   = filter_frame,
        .config_props   = config_input,
        .needs_writable = 1,
    },
    { NULL }
}

Definition at line 232 of file vf_swaprect.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

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

Definition at line 243 of file vf_swaprect.c.

ff_vf_swaprect

AVFilter ff_vf_swaprect

Initial value:

= {
    .name          = "swaprect",
    .description   = NULL_IF_CONFIG_SMALL("Swap 2 rectangular objects in video."),
    .priv_size     = sizeof(SwapRectContext),
    .priv_class    = &swaprect_class,
    .query_formats = query_formats,
    .uninit        = uninit,
    .inputs        = inputs,
    .outputs       = outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
    .process_command = ff_filter_process_command,
}

Definition at line 251 of file vf_swaprect.c.