vf_libvmaf.c File Reference

Calculate the VMAF between two input videos. More...

#include "config_components.h"
#include <libvmaf.h>
#include "libavutil/avstring.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "filters.h"
#include "formats.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	LIBVMAFContext

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Functions
	FRAMESYNC_DEFINE_CLASS (libvmaf, LIBVMAFContext, fs)
static enum VmafPixelFormat	pix_fmt_map (enum AVPixelFormat av_pix_fmt)
static int	copy_picture_data (AVFrame *src, VmafPicture *dst, unsigned bpc)
static int	do_vmaf (FFFrameSync *fs)
static AVDictionary **	delimited_dict_parse (char *str, unsigned *cnt)
static int	parse_features (AVFilterContext *ctx)
static int	parse_models (AVFilterContext *ctx)
static enum VmafLogLevel	log_level_map (int log_level)
static av_cold int	init (AVFilterContext *ctx)
static int	config_input_ref (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static enum VmafOutputFormat	log_fmt_map (const char *log_fmt)
static enum VmafPoolingMethod	pool_method_map (const char *pool_method)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	libvmaf_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	libvmaf_inputs []
static const AVFilterPad	libvmaf_outputs []
const FFFilter	ff_vf_libvmaf

Detailed Description

Calculate the VMAF between two input videos.

Definition in file vf_libvmaf.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(LIBVMAFContext, x)

Definition at line 69 of file vf_libvmaf.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 70 of file vf_libvmaf.c.

Function Documentation

FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS	(	libvmaf	,
		LIBVMAFContext	,
		fs	)

pix_fmt_map()

static enum VmafPixelFormat pix_fmt_map ( enum AVPixelFormat av_pix_fmt )

static

Definition at line 85 of file vf_libvmaf.c.

Referenced by copy_picture_data().

copy_picture_data()

static int copy_picture_data ( AVFrame * src, VmafPicture * dst, unsigned bpc )

static

Definition at line 108 of file vf_libvmaf.c.

Referenced by do_vmaf().

do_vmaf()

static int do_vmaf ( FFFrameSync * fs )

static

Definition at line 129 of file vf_libvmaf.c.

Referenced by init().

delimited_dict_parse()

static AVDictionary ** delimited_dict_parse ( char * str, unsigned * cnt )

static

Definition at line 172 of file vf_libvmaf.c.

Referenced by parse_features(), and parse_models().

parse_features()

static int parse_features ( AVFilterContext * ctx )

static

Definition at line 224 of file vf_libvmaf.c.

Referenced by init().

parse_models()

static int parse_models ( AVFilterContext * ctx )

static

Definition at line 279 of file vf_libvmaf.c.

Referenced by init().

log_level_map()

static enum VmafLogLevel log_level_map ( int log_level )

static

Definition at line 411 of file vf_libvmaf.c.

Referenced by init().

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 429 of file vf_libvmaf.c.

config_input_ref()

static int config_input_ref ( AVFilterLink * inlink )

static

Definition at line 464 of file vf_libvmaf.c.

config_output()

static int config_output ( AVFilterLink * outlink )

static

Definition at line 495 of file vf_libvmaf.c.

activate()

static int activate ( AVFilterContext * ctx )

static

Definition at line 518 of file vf_libvmaf.c.

log_fmt_map()

static enum VmafOutputFormat log_fmt_map ( const char * log_fmt )

static

Definition at line 524 of file vf_libvmaf.c.

Referenced by uninit().

pool_method_map()

static enum VmafPoolingMethod pool_method_map ( const char * pool_method )

static

Definition at line 540 of file vf_libvmaf.c.

Referenced by uninit().

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 554 of file vf_libvmaf.c.

Variable Documentation

libvmaf_options

const AVOption libvmaf_options[]

static

Initial value:

= {
    {"log_path",  "Set the file path to be used to write log.",                         OFFSET(log_path), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 1, FLAGS},
    {"log_fmt",  "Set the format of the log (csv, json, xml, or sub).",                 OFFSET(log_fmt), AV_OPT_TYPE_STRING, {.str="xml"}, 0, 1, FLAGS},
    {"pool",  "Set the pool method to be used for computing vmaf.",                     OFFSET(pool), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 1, FLAGS},
    {"n_threads", "Set number of threads to be used when computing vmaf.",              OFFSET(n_threads), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT_MAX, FLAGS},
    {"n_subsample", "Set interval for frame subsampling used when computing vmaf.",     OFFSET(n_subsample), AV_OPT_TYPE_INT, {.i64=1}, 1, UINT_MAX, FLAGS},
    {"model",  "Set the model to be used for computing vmaf.",                          OFFSET(model_cfg), AV_OPT_TYPE_STRING, {.str="version=vmaf_v0.6.1"}, 0, 1, FLAGS},
    {"feature",  "Set the feature to be used for computing vmaf.",                      OFFSET(feature_cfg), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 1, FLAGS},
    { NULL }
}

Definition at line 72 of file vf_libvmaf.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUV444P10LE, AV_PIX_FMT_YUV422P10LE, AV_PIX_FMT_YUV420P10LE,
    AV_PIX_FMT_YUV444P12LE, AV_PIX_FMT_YUV422P12LE, AV_PIX_FMT_YUV420P12LE,
    AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV420P16LE,
    AV_PIX_FMT_NONE
}

Definition at line 456 of file vf_libvmaf.c.

libvmaf_inputs

const AVFilterPad libvmaf_inputs[]

static

Initial value:

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

Definition at line 600 of file vf_libvmaf.c.

libvmaf_outputs

const AVFilterPad libvmaf_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
    },
}

Definition at line 612 of file vf_libvmaf.c.

ff_vf_libvmaf

const FFFilter ff_vf_libvmaf

Initial value:

= {
    .p.name        = "libvmaf",
    .p.description = NULL_IF_CONFIG_SMALL("Calculate the VMAF between two video streams."),
    .p.priv_class  = &libvmaf_class,
    .preinit       = libvmaf_framesync_preinit,
    .init          = init,
    .uninit        = uninit,
    .activate      = activate,
    .priv_size     = sizeof(LIBVMAFContext),
    FILTER_INPUTS(libvmaf_inputs),
    FILTER_OUTPUTS(libvmaf_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
}

Definition at line 620 of file vf_libvmaf.c.