internal

Documentation

Index

• func Probe(r io.Reader) manifest.ProbeScore
• func SkipID3v2(r *bufio.Reader) (int, error)
• type Demuxer
  • func NewDemuxer(r io.ReadSeeker, _ DemuxerConfig) (*Demuxer, error)
  • func (d *Demuxer) Analyze() ([]media.StreamInfo, metadata.Bundle, error)
  • func (d *Demuxer) ReadPacket() (*media.Packet, int, error)
  • func (d *Demuxer) Seek(offset time.Duration) error
• type DemuxerConfig
• type FrameHeader
• type Header
• type Muxer
  • func NewMuxer(w io.Writer, _ MuxerConfig) *Muxer
  • func (m *Muxer) AddStream(streamInfo media.StreamInfo) (int, error)
  • func (m *Muxer) SetMetadata(metadataBundle metadata.Bundle) error
  • func (m *Muxer) WriteHeader() error
  • func (m *Muxer) WritePacket(streamIndex int, packet *media.Packet) error
  • func (m *Muxer) WriteTrailer() error
• type MuxerConfig

Functions

func Probe

func Probe(r io.Reader) manifest.ProbeScore

Probe はMP3ファイルを検出する。 MP3同期ワード (0xFF 0xEx ~ 0xFF 0xFx) またはID3v2ヘッダを確認する。

func SkipID3v2

func SkipID3v2(r *bufio.Reader) (int, error)

SkipID3v2 skips the ID3v2 tags at the current reader position. It returns the number of bytes skipped.

Types

type Demuxer

type Demuxer struct {
	// contains filtered or unexported fields
}

Demuxer はMP3コンテナを読み込む。

func NewDemuxer

func NewDemuxer(r io.ReadSeeker, _ DemuxerConfig) (*Demuxer, error)

func (*Demuxer) Analyze

func (d *Demuxer) Analyze() ([]media.StreamInfo, metadata.Bundle, error)

func (*Demuxer) ReadPacket

func (d *Demuxer) ReadPacket() (*media.Packet, int, error)

func (*Demuxer) Seek

func (d *Demuxer) Seek(offset time.Duration) error

type DemuxerConfig

type DemuxerConfig struct{}

type FrameHeader

type FrameHeader struct {
	Version     int
	Layer       int
	BitRate     int
	SampleRate  int
	Padding     int
	ChannelMode int // header.ChannelModeMono is Mono, others are stereo/dual
	FrameSize   int
	Samples     int
}

type Header

type Header = header.Header

type Muxer

type Muxer struct {
	// contains filtered or unexported fields
}

Muxer はMP3パケットをストリームに書き出す。 MP3はコンテナヘッダーを持たないストリーム形式のため、 WriteHeader/WriteTrailer は何もしない。

func NewMuxer

func NewMuxer(w io.Writer, _ MuxerConfig) *Muxer

func (*Muxer) AddStream

func (m *Muxer) AddStream(streamInfo media.StreamInfo) (int, error)

func (*Muxer) SetMetadata

func (m *Muxer) SetMetadata(metadataBundle metadata.Bundle) error

func (*Muxer) WriteHeader

func (m *Muxer) WriteHeader() error

func (*Muxer) WritePacket

func (m *Muxer) WritePacket(streamIndex int, packet *media.Packet) error

func (*Muxer) WriteTrailer

func (m *Muxer) WriteTrailer() error

type MuxerConfig

type MuxerConfig struct{}