vf_transpose.c File Reference

transposition filter Based on MPlayer libmpcodecs/vf_rotate.c. More...

#include <stdio.h>
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.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	TransContext

Macros
#define	OFFSET(x)   offsetof(TransContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM

Enumerations
enum	TransposeDir { TRANSPOSE_CCLOCK_FLIP, TRANSPOSE_CLOCK, TRANSPOSE_CCLOCK, TRANSPOSE_CLOCK_FLIP }

Functions
static int	query_formats (AVFilterContext *ctx)
static int	config_props_output (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)

Variables
static const AVOption	options []
static const AVClass	transpose_class
static const AVFilterPad	avfilter_vf_transpose_inputs []
static const AVFilterPad	avfilter_vf_transpose_outputs []
AVFilter	ff_vf_transpose

Detailed Description

transposition filter Based on MPlayer libmpcodecs/vf_rotate.c.

Definition in file vf_transpose.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(TransContext, x)

Definition at line 195 of file vf_transpose.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 196 of file vf_transpose.c.

Enumeration Type Documentation

enum TransposeDir

Enumerator
TRANSPOSE_CCLOCK_FLIP
TRANSPOSE_CLOCK
TRANSPOSE_CCLOCK
TRANSPOSE_CLOCK_FLIP

Definition at line 41 of file vf_transpose.c.

Function Documentation

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 56 of file vf_transpose.c.

static int config_props_output ( AVFilterLink *  outlink )

static

Definition at line 86 of file vf_transpose.c.

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

static

Definition at line 116 of file vf_transpose.c.

Variable Documentation

const AVOption options[]

static

Initial value:

= {
    { "dir", "Transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, { .i64 = TRANSPOSE_CCLOCK_FLIP },
        TRANSPOSE_CCLOCK_FLIP, TRANSPOSE_CLOCK_FLIP, FLAGS, "dir" },
        { "cclock_flip", "counter-clockwise with vertical flip", 0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK_FLIP }, .unit = "dir" },
        { "clock",       "clockwise",                            0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK       }, .unit = "dir" },
        { "cclock",      "counter-clockwise",                    0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CCLOCK      }, .unit = "dir" },
        { "clock_flip",  "clockwise with vertical flip",         0, AV_OPT_TYPE_CONST, { .i64 = TRANSPOSE_CLOCK_FLIP  }, .unit = "dir" },
    { NULL },
}

Definition at line 197 of file vf_transpose.c.

const AVClass transpose_class

static

Initial value:

= {
    .class_name = "transpose",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 207 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_inputs[]

static

Initial value:

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

Definition at line 214 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_outputs[]

static

Initial value:

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

Definition at line 223 of file vf_transpose.c.

AVFilter ff_vf_transpose

Initial value:

= {
    .name          = "transpose",
    .description   = NULL_IF_CONFIG_SMALL("Transpose input video."),
    .priv_size     = sizeof(TransContext),
    .priv_class    = &transpose_class,
    .query_formats = query_formats,
    .inputs        = avfilter_vf_transpose_inputs,
    .outputs       = avfilter_vf_transpose_outputs,
}

Definition at line 232 of file vf_transpose.c.