rtc

package
v0.0.1 Latest Latest
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 Go to latest Published: Feb 21, 2025 License: MIT Imports: 6 Imported by: 0

Documentation

Overview

Package rtc keeps all const and data structure may be used.

It should not import any other package to avoid package import cycle

Index

Constants

View Source 
const (
	MaxRTCPAudioInterval = 5000
	MaxRTCPVideoInterval = 1000
)

Max RTCP Report Interval

View Source 
const (
	MediaTypeAudio = "audio"
	MediaTypeVideo = "video"
)
View Source 
const (
	HeaderExtensionNone                      = ""
	HeaderExtensionTimestampOffset           = "urn:ietf:params:rtp-hdrext:toffset"
	HeaderExtensionAudioLevel                = "urn:ietf:params:rtp-hdrext:ssrc-audio-level"
	HeaderExtensionCsrcAudioLevels           = "urn:ietf:params:rtp-hdrext:csrc-audio-level"
	HeaderExtensionInbandCN                  = "http://www.webrtc.org/experiments/rtp-hdrext/inband-cn"
	HeaderExtensionAbsSendTime               = "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time"
	HeaderExtensionAbsoluteCaptureTime       = "http://www.webrtc.org/experiments/rtp-hdrext/abs-capture-time"
	HeaderExtensionVideoRotation             = "urn:3gpp:video-orientation"
	HeaderExtensionTransportSequenceNumber   = "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"
	HeaderExtensionTransportSequenceNumberV2 = "http://www.webrtc.org/experiments/rtp-hdrext/transport-wide-cc-02"
	HeaderExtensionPlayoutDelay              = "http://www.webrtc.org/experiments/rtp-hdrext/playout-delay"
	HeaderExtensionVideoContentType          = "http://www.webrtc.org/experiments/rtp-hdrext/video-content-type"
	HeaderExtensionVideoLayersAllocation     = "http://www.webrtc.org/experiments/rtp-hdrext/video-layers-allocation00"
	HeaderExtensionVideoTiming               = "http://www.webrtc.org/experiments/rtp-hdrext/video-timing"
	HeaderExtensionRid                       = "urn:ietf:params:rtp-hdrext:sdes:rtp-stream-id"
	HeaderExtensionRepairedRid               = "urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"
	HeaderExtensionMid                       = "urn:ietf:params:rtp-hdrext:sdes:mid"
	HeaderExtensionGenericFrameDescriptor00  = "http://www.webrtc.org/experiments/rtp-hdrext/generic-frame-descriptor-00"
	HeaderExtensionColorSpace                = "http://www.webrtc.org/experiments/rtp-hdrext/color-space"
	HeaderExtensionVideoFrameTrackingID      = "http://www.webrtc.org/experiments/rtp-hdrext/video-frame-tracking-id"
	HeaderExtensionDependencyDescriptor      = "https://aomediacodec.github.io/av1-rtp-spec/#dependency-descriptor-rtp-header-extension"
)

see https://chromium.googlesource.com/external/webrtc/+/HEAD/api/rtp_parameters.h#298

View Source 
const SeqNumberMaxValue = math.MaxUint16

Variables

View Source 
var ErrUnknownType = errors.New("unknown kind, only support MediaTypeAudio and MediaTypeVideo")

Functions

func GenerateSSRC 

func GenerateSSRC() uint32

Types

type CowBuffer 

type CowBuffer []byte

func (CowBuffer) Copy 

func (b CowBuffer) Copy() CowBuffer

type HeaderExtension 

type HeaderExtension struct {
	URI     string
	ID      HeaderExtensionID
	Encrypt bool
}

type HeaderExtensionID 

type HeaderExtensionID uint8
const (
	HeaderExtensionIDNone HeaderExtensionID = iota
	HeaderExtensionIDTransmissionTimeOffset
	HeaderExtensionIDAudioLevel
	HeaderExtensionIDCsrcAudioLevel
	HeaderExtensionIDInbandComfortNoise
	HeaderExtensionIDAbsoluteSendTime
	HeaderExtensionIDAbsoluteCaptureTime
	HeaderExtensionIDVideoRotation
	HeaderExtensionIDTransportSequenceNumber
	HeaderExtensionIDTransportSequenceNumber02
	HeaderExtensionIDPlayoutDelay
	HeaderExtensionIDVideoContentType
	HeaderExtensionIDVideoLayersAllocation
	HeaderExtensionIDVideoTiming
	HeaderExtensionIDHeaderStreamID
	HeaderExtensionIDRepairedHeaderStreamID
	HeaderExtensionIDMid
	HeaderExtensionIDGenericFrameDescriptor00
	HeaderExtensionIDGenericFrameDescriptor02
	HeaderExtensionIDColorSpace
	HeaderExtensionIDVideoFrameTrackingID
)

All support rtp header extensions see https://chromium.googlesource.com/external/webrtc/+/HEAD/modules/rtp_rtcp/include/rtp_rtcp_defines.h#51

func DefaultHeaderExtensionID 

func DefaultHeaderExtensionID(uri string) HeaderExtensionID

DefaultHeaderExtensionID is used when we are the offer side

type HeaderExtensionIDs 

type HeaderExtensionIDs map[string]HeaderExtension

func NewHerderExtensionIDs 

func NewHerderExtensionIDs(headers []HeaderExtension) HeaderExtensionIDs

func (HeaderExtensionIDs) AbsSendTime 

func (h HeaderExtensionIDs) AbsSendTime() HeaderExtensionID

func (HeaderExtensionIDs) HeaderExtensions 

func (h HeaderExtensionIDs) HeaderExtensions() []HeaderExtension

func (HeaderExtensionIDs) Mid 

func (h HeaderExtensionIDs) Mid() HeaderExtensionID

func (HeaderExtensionIDs) RRid 

func (h HeaderExtensionIDs) RRid() HeaderExtensionID

func (HeaderExtensionIDs) Rid 

func (h HeaderExtensionIDs) Rid() HeaderExtensionID

func (HeaderExtensionIDs) TransportWideCC 

func (h HeaderExtensionIDs) TransportWideCC() HeaderExtensionID

type Packet 

type Packet interface {
	SetHeaderExtensionIDs(h HeaderExtensionIDs)
	SSRC() uint32
	Mid(mid HeaderExtensionID) string
	Rid(rid HeaderExtensionID) string
	RRid(rrid HeaderExtensionID) string
	PayloadType() PayloadType
	SetPayloadType(payloadType PayloadType)
	SetSsrc(ssrc uint32)
	IsKeyFrame() bool
	ReadTransportWideCc01(tcc uint8) (uint16, bool)
	ReadAbsSendTime(abs uint8) (uint32, bool)
	SequenceNumber() uint16
	SetSequenceNumber(seq uint16)
	UpdateAbsSendTime(id HeaderExtensionID, nowMs time.Time)
	UpdateTransportWideCc01(i int) bool
	Size() int
	HasMarker() bool
	Resolution() (int, int, bool)
	ProfileLevelID() (int, bool)
	Timestamp() uint32
	// ReceiveMS is when we receive the packet
	ReceiveMS() int64
	Payload() []byte
	PayloadLength() int
	Packet() *rtp.Packet
	SetPayloadDescriptor(pd PayloadDescriptor)
	Marshal() ([]byte, error)
	RtxDecode(payloadType PayloadType, ssrc uint32) error
	TemporalLayer() int
	SetTimestamp(timestamp uint32)
	UpdateHeader(extensions []rtp.Extension)
	IsRTX() bool
	SetRTX(b bool)
	HeaderExtensions() []rtp.Extension
	Parse(d []byte) error
}

Packet as a interface could make other tests easier, but not final decision.

type PayloadDescriptor 

type PayloadDescriptor interface {
	IsKeyFrame() bool
}

type PayloadType 

type PayloadType uint8

type SSRC 

type SSRC uint32

type SendRTCP 

type SendRTCP func(rtcp.Packet)

type Seq 

type Seq uint16

Source Files

View all Source files

Directories

Path Synopsis
bwe
remb
tcc
av1
h264
vp8
vp9
Package ice implements ice-lite both server and client side.
 Package ice implements ice-lite both server and client side.
Package sdp provides SDP parsing and generation.
 Package sdp provides SDP parsing and generation.

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