screengen

README

This repository has migrated to gitlab.com/opennota/screengen.

Documentation

Overview

Package screengen can be used for generating screenshots from video files.

Index

• type Generator
  • func NewGenerator(fn string) (_ *Generator, err error)
  • func (g *Generator) Close() error
  • func (g *Generator) Height() int
  • func (g *Generator) Image(ts int64) (image.Image, error)
  • func (g *Generator) ImageWxH(ts int64, width, height int) (image.Image, error)
  • func (g *Generator) Width() int

Types

type Generator

type Generator struct {
	Fast bool // Imprecise (but faster) seek; set by the user

	Filename string // Video file name

	Duration           int64   // Duration of the video in milliseconds
	VideoCodec         string  // Name of the video codec
	VideoCodecLongName string  // Readable/long name of the video codec
	FPS                float64 // Frames Per Second

	AudioCodec         string // Name of the audio codec
	AudioCodecLongName string // Readable/long name of the audio codec

	Bitrate int
	// contains filtered or unexported fields
}

Generator is used to generate screenshots from a video file.

func NewGenerator

func NewGenerator(fn string) (_ *Generator, err error)

NewGenerator returns new generator of screenshots for the video file fn.

func (*Generator) Close

func (g *Generator) Close() error

Close closes the internal ffmpeg context.

func (*Generator) Height

func (g *Generator) Height() int

Height returns the height of the video

func (*Generator) Image

func (g *Generator) Image(ts int64) (image.Image, error)

Image returns a screenshot at the ts milliseconds.

func (*Generator) ImageWxH

func (g *Generator) ImageWxH(ts int64, width, height int) (image.Image, error)

ImageWxH returns a screenshot at the ts milliseconds, scaled to the specified width and height.

func (*Generator) Width

func (g *Generator) Width() int

Width returns the width of the video