analysis

package

v0.4.2 Latest Latest Go to latest Published: Oct 7, 2025 License: MIT Imports: 18 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/evolution-gaming/ease

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Documentation ¶

Index ¶

Variables
func CreateBitratePlot(frameStats []FrameStat) (*plot.Plot, error)
func CreateCDFPlot(values []float64, name string) (*plot.Plot, error)
func CreateFrameSizePlot(frameStats []FrameStat) (*plot.Plot, error)
func CreateHistogramPlot(metric plotter.XYer, name string) (*plot.Plot, error)
func CreateVqmPlot(metric plotter.XYer, name string) (*plot.Plot, error)
func MultiPlotBitrate(videoFile, plotFile, ffprobePath string) error
func MultiPlotVqm(vqmValues plotter.XYer, metric, title, outFile string) (err error)
type FrameStat
- func (f *FrameStat) UnmarshalJSON(data []byte) error
type FrameStats
- func GetFrameStats(videoFile, ffprobePath string) (FrameStats, error)
- func (ff FrameStats) ToBitrate() ([]float64, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var ColorPalette = []color.RGBA{

	{R: 230, G: 57, B: 70, A: 255},

	{R: 143, G: 35, B: 43, A: 255},

	{R: 84, G: 184, B: 50, A: 255},

	{R: 50, G: 110, B: 30, A: 255},

	{R: 63, G: 55, B: 201, A: 255},

	{R: 51, G: 45, B: 163, A: 255},

	{R: 86, G: 11, B: 173, A: 255},

	{R: 62, G: 8, B: 125, A: 255},

	{R: 31, G: 180, B: 206, A: 255},

	{R: 11, G: 123, B: 143, A: 255},

	{R: 255, G: 174, B: 0, A: 255},

	{R: 173, G: 118, B: 0, A: 255},
}

A custom color palette: color1 as base color and color2 as a darker variant.

Functions ¶

func CreateBitratePlot ¶

func CreateBitratePlot(frameStats []FrameStat) (*plot.Plot, error)

CreateBitratePlot creates a bitrate plot from given FrameStat slice.

func CreateCDFPlot ¶

func CreateCDFPlot(values []float64, name string) (*plot.Plot, error)

CreateCDFPlot creates Cumulative Distribution Function plot for given VQM values.

func CreateFrameSizePlot ¶

func CreateFrameSizePlot(frameStats []FrameStat) (*plot.Plot, error)

func CreateHistogramPlot ¶

func CreateHistogramPlot(metric plotter.XYer, name string) (*plot.Plot, error)

CreateHistogramPlot creates histogram plot for given VQM values.

func CreateVqmPlot ¶

func CreateVqmPlot(metric plotter.XYer, name string) (*plot.Plot, error)

CreateVqmPlot creates a plot for given VQM values.

func MultiPlotBitrate ¶

func MultiPlotBitrate(videoFile, plotFile, ffprobePath string) error

MultiPlotBitrate will create and save to file bitrate multi plot.

Resulting plot will include the bitrate plot aggregated into 1 second buckets and frame size plot all in one canvas.

func MultiPlotVqm ¶

func MultiPlotVqm(vqmValues plotter.XYer, metric, title, outFile string) (err error)

MultiPlotVqm will create VQM metric multi plot and save it to a file.

Resulting plot will include the provided VQM metric plot, it's histogram plot and CDF plot all in one canvas.

Types ¶

type FrameStat ¶

type FrameStat struct {
	KeyFrame     bool
	DurationTime float64
	PtsTime      float64
	Size         uint64
}

FrameStat is struct with per-frame meta-data.

func (*FrameStat) UnmarshalJSON ¶

func (f *FrameStat) UnmarshalJSON(data []byte) error

type FrameStats ¶ added in v0.4.2

type FrameStats []FrameStat

FrameStats is an alias to implement convenient methods on underlying slice type.

func GetFrameStats ¶

func GetFrameStats(videoFile, ffprobePath string) (FrameStats, error)

GetFrameStats gets per-frame stats using ffprobe.

func (FrameStats) ToBitrate ¶ added in v0.4.2

func (ff FrameStats) ToBitrate() ([]float64, error)

ToBitrate calculates 1s bitrate buckets from given FrameStats.

Source Files ¶

View all Source files

plot.go

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