vqm

type FfmpegVMAFConfig ¶ added in v0.3.0

type FfmpegVMAFConfig struct {
	FfmpegPath         string
	LibvmafModelPath   string
	FfmpegVMAFTemplate string
	ResultFile         string
}

FfmpegVMAFConfig exposes parameters for ffmpegVMAF creation.

type FrameMetric ¶

type FrameMetric struct {
	FrameNum uint
	VMAF     float64
	PSNR     float64
	MS_SSIM  float64
}

FrameMetric contains VQMs for a single frame.

type FrameMetrics ¶

type FrameMetrics []FrameMetric

func (fm *FrameMetrics) FromFfmpegVMAF(jsonReader io.Reader) error

func (fm *FrameMetrics) FromJSON(r io.Reader) error

func (fm *FrameMetrics) Get() []FrameMetric

func (fm *FrameMetrics) ToJSON(w io.Writer) error

type Measurer ¶

type Measurer interface {
	// Measure should run actual VQM measuring process
	Measure() error
	// GetResult will retrieve VQM measurement Result
	GetResult() (Result, error)
}

Measurer is an interface that must be implemented by VQM tool which is capable of calculating Vide Quality Metrics.

func NewFfmpegVMAF(cfg *FfmpegVMAFConfig, compressedFile, sourceFile string) (Measurer, error)

type Result ¶

type Result struct {
	SourceFile     string
	CompressedFile string
	ResultFile     string
	Metrics        VideoQualityMetrics
}

Result represents Measurer tool execution result.

type VideoQualityMetrics ¶

type VideoQualityMetrics struct {
	PSNR    float64
	MS_SSIM float64
	VMAF    float64
}

VideoQualityMetrics is a struct of meaningful Video Quality Metrics.