rtp

package module
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 Go to latest Published: Oct 10, 2019 License: MIT Imports: 7 Imported by: 2,535

README


Pion RTP

A Go implementation of RTP

Pion RTP Sourcegraph Widget Slack Widget
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Roadmap

The library is used as a part of our WebRTC implementation. Please refer to that roadmap to track our major milestones.

Community

Pion has an active community on the Golang Slack. Sign up and join the #pion channel for discussions and support. You can also use Pion mailing list.

We are always looking to support your projects. Please reach out if you have something to build!

If you need commercial support or don't want to use public methods you can contact us at team@pion.ly

Contributing

Check out the contributing wiki to join the group of amazing people making this project possible:

License

MIT License - see LICENSE for full text

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Depacketizer 

type Depacketizer interface {
	Unmarshal(packet []byte) ([]byte, error)
}

Depacketizer depacketizes a RTP payload, removing any RTP specific data from the payload 

type Header struct {
	Version          uint8
	Padding          bool
	Extension        bool
	Marker           bool
	PayloadOffset    int
	PayloadType      uint8
	SequenceNumber   uint16
	Timestamp        uint32
	SSRC             uint32
	CSRC             []uint32
	ExtensionProfile uint16
	ExtensionPayload []byte
}

Header represents an RTP packet header NOTE: PayloadOffset is populated by Marshal/Unmarshal and should not be modified

func (*Header) Marshal 

func (h *Header) Marshal() (buf []byte, err error)

Marshal serializes the header into bytes.

func (*Header) MarshalSize 

func (h *Header) MarshalSize() int

MarshalSize returns the size of the header once marshaled.

func (*Header) MarshalTo 

func (h *Header) MarshalTo(buf []byte) (n int, err error)

MarshalTo serializes the header and writes to the buffer.

func (*Header) Unmarshal 

func (h *Header) Unmarshal(rawPacket []byte) error

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

type Packet 

type Packet struct {
	Header
	Raw     []byte
	Payload []byte
}

Packet represents an RTP Packet NOTE: Raw is populated by Marshal/Unmarshal and should not be modified

func (*Packet) Marshal 

func (p *Packet) Marshal() (buf []byte, err error)

Marshal serializes the packet into bytes.

func (*Packet) MarshalSize 

func (p *Packet) MarshalSize() int

MarshalSize returns the size of the packet once marshaled.

func (*Packet) MarshalTo 

func (p *Packet) MarshalTo(buf []byte) (n int, err error)

MarshalTo serializes the packet and writes to the buffer.

func (Packet) String 

func (p Packet) String() string

String helps with debugging by printing packet information in a readable way

func (*Packet) Unmarshal 

func (p *Packet) Unmarshal(rawPacket []byte) error

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

type Packetizer 

type Packetizer interface {
	Packetize(payload []byte, samples uint32) []*Packet
	EnableAbsSendTime(value int)
}

Packetizer packetizes a payload

func NewPacketizer 

func NewPacketizer(mtu int, pt uint8, ssrc uint32, payloader Payloader, sequencer Sequencer, clockRate uint32) Packetizer

NewPacketizer returns a new instance of a Packetizer for a specific payloader

type Payloader 

type Payloader interface {
	Payload(mtu int, payload []byte) [][]byte
}

Payloader payloads a byte array for use as rtp.Packet payloads

type Sequencer 

type Sequencer interface {
	NextSequenceNumber() uint16
	RollOverCount() uint64
}

Sequencer generates sequential sequence numbers for building RTP packets

func NewFixedSequencer 

func NewFixedSequencer(s uint16) Sequencer

NewFixedSequencer returns a new sequencer starting from a specific sequence number

func NewRandomSequencer 

func NewRandomSequencer() Sequencer

NewRandomSequencer returns a new sequencer starting from a random sequence number

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