codecs

Documentation

Overview

Package codecs implements codec specific RTP payloader/depayloaders

Index

• type G711Payloader
  • func (p *G711Payloader) Payload(mtu int, payload []byte) [][]byte
• type G722Payloader
  • func (p *G722Payloader) Payload(mtu int, payload []byte) [][]byte
• type H264Payloader
  • func (p *H264Payloader) Payload(mtu int, payload []byte) [][]byte
• type OpusPacket
  • func (p *OpusPacket) Unmarshal(packet []byte) ([]byte, error)
• type OpusPartitionHeadChecker
  • func (*OpusPartitionHeadChecker) IsPartitionHead(packet []byte) bool
• type OpusPayloader
  • func (p *OpusPayloader) Payload(mtu int, payload []byte) [][]byte
• type VP8Packet
  • func (p *VP8Packet) Unmarshal(payload []byte) ([]byte, error)
• type VP8PartitionHeadChecker
  • func (*VP8PartitionHeadChecker) IsPartitionHead(packet []byte) bool
• type VP8Payloader
  • func (p *VP8Payloader) Payload(mtu int, payload []byte) [][]byte
• type VP9Packet
  • func (p *VP9Packet) Unmarshal(packet []byte) ([]byte, error)
• type VP9PartitionHeadChecker
  • func (*VP9PartitionHeadChecker) IsPartitionHead(packet []byte) bool
• type VP9Payloader
  • func (p *VP9Payloader) Payload(mtu int, payload []byte) [][]byte

Types

type G711Payloader

type G711Payloader struct{}

G711Payloader payloads G711 packets

func (*G711Payloader) Payload

func (p *G711Payloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments an G711 packet across one or more byte arrays

type G722Payloader

type G722Payloader struct{}

G722Payloader payloads G722 packets

func (*G722Payloader) Payload

func (p *G722Payloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments an G722 packet across one or more byte arrays

type H264Payloader

type H264Payloader struct{}

H264Payloader payloads H264 packets

func (*H264Payloader) Payload

func (p *H264Payloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments a H264 packet across one or more byte arrays

type OpusPacket

type OpusPacket struct {
	Payload []byte
}

OpusPacket represents the VP8 header that is stored in the payload of an RTP Packet

func (*OpusPacket) Unmarshal

func (p *OpusPacket) Unmarshal(packet []byte) ([]byte, error)

Unmarshal parses the passed byte slice and stores the result in the OpusPacket this method is called upon

type OpusPartitionHeadChecker

type OpusPartitionHeadChecker struct{}

OpusPartitionHeadChecker checks Opus partition head

func (*OpusPartitionHeadChecker) IsPartitionHead

func (*OpusPartitionHeadChecker) IsPartitionHead(packet []byte) bool

IsPartitionHead checks whether if this is a head of the Opus partition

type OpusPayloader

type OpusPayloader struct{}

OpusPayloader payloads Opus packets

func (*OpusPayloader) Payload

func (p *OpusPayloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments an Opus packet across one or more byte arrays

type VP8Packet

type VP8Packet struct {
	// Required Header
	X   uint8 /* extended controlbits present */
	N   uint8 /* (non-reference frame)  when set to 1 this frame can be discarded */
	S   uint8 /* start of VP8 partition */
	PID uint8 /* partition index */

	// Optional Header
	I         uint8  /* 1 if PictureID is present */
	L         uint8  /* 1 if TL0PICIDX is present */
	T         uint8  /* 1 if TID is present */
	K         uint8  /* 1 if KEYIDX is present */
	PictureID uint16 /* 8 or 16 bits, picture ID */
	TL0PICIDX uint8  /* 8 bits temporal level zero index */

	Payload []byte
}

VP8Packet represents the VP8 header that is stored in the payload of an RTP Packet

func (*VP8Packet) Unmarshal

func (p *VP8Packet) Unmarshal(payload []byte) ([]byte, error)

Unmarshal parses the passed byte slice and stores the result in the VP8Packet this method is called upon

type VP8PartitionHeadChecker

type VP8PartitionHeadChecker struct{}

VP8PartitionHeadChecker checks VP8 partition head

func (*VP8PartitionHeadChecker) IsPartitionHead

func (*VP8PartitionHeadChecker) IsPartitionHead(packet []byte) bool

IsPartitionHead checks whether if this is a head of the VP8 partition

type VP8Payloader

type VP8Payloader struct{}

VP8Payloader payloads VP8 packets

func (*VP8Payloader) Payload

func (p *VP8Payloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments a VP8 packet across one or more byte arrays

type VP9Packet

type VP9Packet struct {
	// Required header
	I bool // PictureID is present
	P bool // Inter-picture predicted frame
	L bool // Layer indices is present
	F bool // Flexible mode
	B bool // Start of a frame
	E bool // End of a frame
	V bool // Scalability structure (SS) data present

	// Recommended headers
	PictureID uint16 // 7 or 16 bits, picture ID

	// Conditionally recommended headers
	TID uint8 // Temporal layer ID
	U   bool  // Switching up point
	SID uint8 // Spatial layer ID
	D   bool  // Inter-layer dependency used

	// Conditionally required headers
	PDiff     []uint8 // Reference index (F=1)
	TL0PICIDX uint8   // Temporal layer zero index (F=0)

	Payload []byte
}

VP9Packet represents the VP9 header that is stored in the payload of an RTP Packet

func (*VP9Packet) Unmarshal

func (p *VP9Packet) Unmarshal(packet []byte) ([]byte, error)

Unmarshal parses the passed byte slice and stores the result in the VP9Packet this method is called upon

type VP9PartitionHeadChecker

type VP9PartitionHeadChecker struct{}

VP9PartitionHeadChecker checks VP9 partition head

func (*VP9PartitionHeadChecker) IsPartitionHead

func (*VP9PartitionHeadChecker) IsPartitionHead(packet []byte) bool

IsPartitionHead checks whether if this is a head of the VP9 partition

type VP9Payloader

type VP9Payloader struct {
	Rand *rand.Rand
	// contains filtered or unexported fields
}

VP9Payloader payloads VP9 packets

func (*VP9Payloader) Payload

func (p *VP9Payloader) Payload(mtu int, payload []byte) [][]byte

Payload fragments an VP9 packet across one or more byte arrays