vf_vmafmotion.c File Reference

Calculate VMAF Motion score. More...

#include "libavutil/file_open.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "video.h"
#include "vmaf_motion.h"

Go to the source code of this file.

Data Structures
struct	VMAFMotionContext

Macros
#define	BIT_SHIFT   15
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	conv_y_fn(type, bits)

Functions
	AVFILTER_DEFINE_CLASS (vmafmotion)
static uint64_t	image_sad (const uint16_t *img1, const uint16_t *img2, int w, int h, ptrdiff_t _img1_stride, ptrdiff_t _img2_stride)
static void	convolution_x (const uint16_t *filter, int filt_w, const uint16_t *src, uint16_t *dst, int w, int h, ptrdiff_t _src_stride, ptrdiff_t _dst_stride)
	conv_y_fn (uint8_t, 8)
double	ff_vmafmotion_process (VMAFMotionData *s, AVFrame *ref)
static void	set_meta (AVDictionary **metadata, const char *key, float d)
static void	do_vmafmotion (AVFilterContext *ctx, AVFrame *ref)
int	ff_vmafmotion_init (VMAFMotionData *s, int w, int h, enum AVPixelFormat fmt)
static int	query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
static int	config_input_ref (AVFilterLink *inlink)
double	ff_vmafmotion_uninit (VMAFMotionData *s)
static int	filter_frame (AVFilterLink *inlink, AVFrame *ref)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const float	FILTER_5 [5]
static const AVOption	vmafmotion_options []
static const AVFilterPad	vmafmotion_inputs []
const FFFilter	ff_vf_vmafmotion

Detailed Description

Calculate VMAF Motion score.

Definition in file vf_vmafmotion.c.

Macro Definition Documentation

BIT_SHIFT

#define BIT_SHIFT   15

Definition at line 37 of file vf_vmafmotion.c.

Referenced by convolution_x(), ff_vmafmotion_init(), and ff_vmafmotion_process().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(VMAFMotionContext, x)

Definition at line 54 of file vf_vmafmotion.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 55 of file vf_vmafmotion.c.

conv_y_fn

#define conv_y_fn	(		type,
			bits )

Definition at line 129 of file vf_vmafmotion.c.

Referenced by conv_y_fn().

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

vmafmotion

)

image_sad()

static uint64_t image_sad ( const uint16_t * img1, const uint16_t * img2, int w, int h, ptrdiff_t _img1_stride, ptrdiff_t _img2_stride )

static

Definition at line 64 of file vf_vmafmotion.c.

Referenced by conv_y_fn().

convolution_x()

static void convolution_x ( const uint16_t * filter, int filt_w, const uint16_t * src, uint16_t * dst, int w, int h, ptrdiff_t _src_stride, ptrdiff_t _dst_stride )

static

Definition at line 83 of file vf_vmafmotion.c.

Referenced by conv_y_fn().

conv_y_fn()

conv_y_fn	(	uint8_t	,
		8	)

Definition at line 181 of file vf_vmafmotion.c.

ff_vmafmotion_process()

double ff_vmafmotion_process	(	VMAFMotionData *	s,
		AVFrame *	ref )

Definition at line 190 of file vf_vmafmotion.c.

Referenced by do_vmafmotion().

set_meta()

static void set_meta ( AVDictionary ** metadata, const char * key, float d )

static

Definition at line 215 of file vf_vmafmotion.c.

Referenced by do_vmafmotion().

do_vmafmotion()

static void do_vmafmotion ( AVFilterContext * ctx, AVFrame * ref )

static

Definition at line 222 of file vf_vmafmotion.c.

Referenced by filter_frame().

ff_vmafmotion_init()

int ff_vmafmotion_init	(	VMAFMotionData *	s,
		int	w,
		int	h,
		enum AVPixelFormat	fmt )

Definition at line 236 of file vf_vmafmotion.c.

Referenced by config_input_ref().

query_formats()

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

static

Definition at line 266 of file vf_vmafmotion.c.

config_input_ref()

static int config_input_ref ( AVFilterLink * inlink )

static

Definition at line 286 of file vf_vmafmotion.c.

ff_vmafmotion_uninit()

double ff_vmafmotion_uninit

(

VMAFMotionData *

s

)

Definition at line 295 of file vf_vmafmotion.c.

Referenced by uninit().

filter_frame()

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

static

Definition at line 304 of file vf_vmafmotion.c.

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 311 of file vf_vmafmotion.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 332 of file vf_vmafmotion.c.

Variable Documentation

FILTER_5

const float FILTER_5[5]

static

Initial value:

= {
    0.054488685,
    0.244201342,
    0.402619947,
    0.244201342,
    0.054488685
}

Definition at line 39 of file vf_vmafmotion.c.

Referenced by ff_vmafmotion_init().

vmafmotion_options

const AVOption vmafmotion_options[]

static

Initial value:

= {
    {"stats_file", "Set file where to store per-frame difference information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
    { NULL }
}

Definition at line 57 of file vf_vmafmotion.c.

vmafmotion_inputs

const AVFilterPad vmafmotion_inputs[]

static

Initial value:

= {
    {
        .name         = "reference",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input_ref,
    },
}

Definition at line 345 of file vf_vmafmotion.c.

ff_vf_vmafmotion

const FFFilter ff_vf_vmafmotion

Initial value:

= {
    .p.name        = "vmafmotion",
    .p.description = NULL_IF_CONFIG_SMALL("Calculate the VMAF Motion score."),
    .p.priv_class  = &vmafmotion_class,
    .p.flags       = AVFILTER_FLAG_METADATA_ONLY,
    .init          = init,
    .uninit        = uninit,
    .priv_size     = sizeof(VMAFMotionContext),
    FILTER_INPUTS(vmafmotion_inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_QUERY_FUNC2(query_formats),
}

Definition at line 354 of file vf_vmafmotion.c.