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vf_transpose.c File Reference

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

#include <stdio.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.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_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 

Enumerations

enum  PassthroughType { TRANSPOSE_PT_TYPE_NONE, TRANSPOSE_PT_TYPE_LANDSCAPE, TRANSPOSE_PT_TYPE_PORTRAIT }
 

Functions

 AVFILTER_DEFINE_CLASS (transpose)
 
static av_cold int init (AVFilterContext *ctx, const char *args)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_props_output (AVFilterLink *outlink)
 
static AVFilterBufferRefget_video_buffer (AVFilterLink *inlink, int perms, int w, int h)
 
static int filter_frame (AVFilterLink *inlink, AVFilterBufferRef *in)
 

Variables

static const AVOption transpose_options []
 
static const AVFilterPad avfilter_vf_transpose_inputs []
 
static const AVFilterPad avfilter_vf_transpose_outputs []
 
AVFilter avfilter_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 59 of file vf_transpose.c.

Definition at line 60 of file vf_transpose.c.

Enumeration Type Documentation

Enumerator:
TRANSPOSE_PT_TYPE_NONE 
TRANSPOSE_PT_TYPE_LANDSCAPE 
TRANSPOSE_PT_TYPE_PORTRAIT 

Definition at line 40 of file vf_transpose.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( transpose  )
static av_cold int init ( AVFilterContext ctx,
const char *  args 
)
static

Definition at line 76 of file vf_transpose.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 87 of file vf_transpose.c.

static int config_props_output ( AVFilterLink outlink)
static

Definition at line 106 of file vf_transpose.c.

static AVFilterBufferRef* get_video_buffer ( AVFilterLink inlink,
int  perms,
int  w,
int  h 
)
static

Definition at line 151 of file vf_transpose.c.

static int filter_frame ( AVFilterLink inlink,
AVFilterBufferRef in 
)
static

Definition at line 160 of file vf_transpose.c.

Variable Documentation

const AVOption transpose_options[]
static
Initial value:
= {
{ "dir", "set transpose direction", OFFSET(dir), AV_OPT_TYPE_INT, {.i64=0}, 0, 7, FLAGS },
{ "passthrough", "do not apply transposition if the input matches the specified geometry",
OFFSET(passthrough), AV_OPT_TYPE_INT, {.i64=TRANSPOSE_PT_TYPE_NONE}, 0, INT_MAX, FLAGS, "passthrough" },
{ "none", "always apply transposition", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_NONE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
{ "portrait", "preserve portrait geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_PORTRAIT}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
{ "landscape", "preserve landscape geometry", 0, AV_OPT_TYPE_CONST, {.i64=TRANSPOSE_PT_TYPE_LANDSCAPE}, INT_MIN, INT_MAX, FLAGS, "passthrough" },
{ NULL },
}

Definition at line 62 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_inputs[]
static
Initial value:
= {
{
.name = "default",
.get_video_buffer= get_video_buffer,
.filter_frame = filter_frame,
.min_perms = AV_PERM_READ,
},
{ NULL }
}

Definition at line 250 of file vf_transpose.c.

const AVFilterPad avfilter_vf_transpose_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_props_output,
},
{ NULL }
}

Definition at line 261 of file vf_transpose.c.

AVFilter avfilter_vf_transpose
Initial value:
= {
.name = "transpose",
.description = NULL_IF_CONFIG_SMALL("Transpose input video."),
.init = init,
.priv_size = sizeof(TransContext),
.priv_class = &transpose_class,
}

Definition at line 270 of file vf_transpose.c.