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.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

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.