vf_swaprect.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/eval.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.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_SAR, VAR_DAR, VAR_VARS_NB }

Functions
	AVFILTER_DEFINE_CLASS (swaprect)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
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 []
static const AVFilterPad	inputs []
const AVFilter	ff_vf_swaprect

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(SwapRectContext, x)

Definition at line 45 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 46 of file vf_swaprect.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
VAR_W
VAR_H
VAR_A
VAR_N
VAR_T
VAR_SAR
VAR_DAR
VAR_VARS_NB

Definition at line 76 of file vf_swaprect.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

swaprect

)

query_formats()

static int query_formats ( const AVFilterContext *  ctx, AVFilterFormatsConfig **  cfg_in, AVFilterFormatsConfig **  cfg_out  )

static

Definition at line 59 of file vf_swaprect.c.

filter_frame()

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

static

Definition at line 82 of file vf_swaprect.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 212 of file vf_swaprect.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 233 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 47 of file vf_swaprect.c.

var_names

const char* const var_names[]

static

Initial value:

= {   "w",   "h",   "a",   "n",   "t",
 
 
 
                                                                                      "sar",   "dar",        NULL }

Definition at line 71 of file vf_swaprect.c.

Referenced by filter_frame().

inputs

const AVFilterPad inputs[]

static

Initial value:

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

Definition at line 239 of file vf_swaprect.c.

ff_vf_swaprect

const 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,
    .uninit        = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_QUERY_FUNC2(query_formats),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
    .process_command = ff_filter_process_command,
}

Definition at line 249 of file vf_swaprect.c.