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vf_aspect.c File Reference

aspect ratio modification video filters More...

#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  AspectContext
 

Macros

#define OFFSET(x)   offsetof(AspectContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 

Functions

static av_cold int init (AVFilterContext *ctx, const char *args, const AVClass *class)
 
static int filter_frame (AVFilterLink *link, AVFilterBufferRef *frame)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption options []
 

Detailed Description

aspect ratio modification video filters

Definition in file vf_aspect.c.

Macro Definition Documentation

#define OFFSET (   x)    offsetof(AspectContext, x)

Definition at line 41 of file vf_aspect.c.

Definition at line 42 of file vf_aspect.c.

Function Documentation

static av_cold int init ( AVFilterContext ctx,
const char *  args,
const AVClass class 
)
static

Definition at line 51 of file vf_aspect.c.

static int filter_frame ( AVFilterLink link,
AVFilterBufferRef frame 
)
static

Definition at line 83 of file vf_aspect.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 91 of file vf_aspect.c.

Variable Documentation

const AVOption options[]
static
Initial value:
= {
{"max", "set max value for nominator or denominator in the ratio", OFFSET(max), AV_OPT_TYPE_INT, {.i64=100}, 1, INT_MAX, FLAGS },
{"ratio", "set ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
{"r", "set ratio", OFFSET(ratio_str), AV_OPT_TYPE_STRING, {.str="0"}, 0, 0, FLAGS },
{NULL}
}

Definition at line 44 of file vf_aspect.c.