vf_vmafmotion.c File Reference

Calculate VMAF Motion score. More...

#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.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)   offsetof(VMAFMotionContext, 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)
	conv_y_fn (uint16_t, 10)
static void	vmafmotiondsp_init (VMAFMotionDSPContext *dsp, int bpp)
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 (AVFilterContext *ctx)
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 []
static const AVFilterPad	vmafmotion_outputs []
AVFilter	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 35 of file vf_vmafmotion.c.

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

OFFSET

#define OFFSET

(

x

)

offsetof(VMAFMotionContext, x)

Definition at line 52 of file vf_vmafmotion.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 53 of file vf_vmafmotion.c.

conv_y_fn

#define conv_y_fn	(		type,
			bits
	)

Definition at line 128 of file vf_vmafmotion.c.

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 62 of file vf_vmafmotion.c.

Referenced by vmafmotiondsp_init().

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 81 of file vf_vmafmotion.c.

Referenced by vmafmotiondsp_init().

conv_y_fn() [1/2]

conv_y_fn	(	uint8_t	,
		8
	)

conv_y_fn() [2/2]

conv_y_fn	(	uint16_t	,
		10
	)

vmafmotiondsp_init()

static void vmafmotiondsp_init ( VMAFMotionDSPContext *  dsp, int  bpp  )

static

Definition at line 183 of file vf_vmafmotion.c.

Referenced by ff_vmafmotion_init().

ff_vmafmotion_process()

double ff_vmafmotion_process	(	VMAFMotionData *	s,
		AVFrame *	ref
	)

Definition at line 189 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 214 of file vf_vmafmotion.c.

Referenced by do_vmafmotion().

do_vmafmotion()

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

static

Definition at line 221 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 235 of file vf_vmafmotion.c.

Referenced by config_input_ref().

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 262 of file vf_vmafmotion.c.

config_input_ref()

static int config_input_ref ( AVFilterLink *  inlink )

static

Definition at line 280 of file vf_vmafmotion.c.

ff_vmafmotion_uninit()

double ff_vmafmotion_uninit

(

VMAFMotionData *

s

)

Definition at line 289 of file vf_vmafmotion.c.

Referenced by uninit().

filter_frame()

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

static

Definition at line 298 of file vf_vmafmotion.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 305 of file vf_vmafmotion.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 328 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 37 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 55 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,
    },
    { NULL }
}

Definition at line 341 of file vf_vmafmotion.c.

vmafmotion_outputs

const AVFilterPad vmafmotion_outputs[]

static

Initial value:

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

Definition at line 351 of file vf_vmafmotion.c.

ff_vf_vmafmotion

AVFilter ff_vf_vmafmotion

Initial value:

= {
    .name          = "vmafmotion",
    .description   = NULL_IF_CONFIG_SMALL("Calculate the VMAF Motion score."),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .priv_size     = sizeof(VMAFMotionContext),
    .priv_class    = &vmafmotion_class,
    .inputs        = vmafmotion_inputs,
    .outputs       = vmafmotion_outputs,
}

Definition at line 359 of file vf_vmafmotion.c.