sfu

package module
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 Go to latest Published: May 1, 2024 License: MIT Imports: 52 Imported by: 0

README

[!IMPORTANT]
This library still in very early development. The API might change in the future. We use it in production for inLive Hub project. We're a small team, so we can't guarantee that we can fix all issues. But we will try our best to fix it especially when it's related with our product. If you have any questions or find any issues, please write it to this repo Github issue. We will appreciate it.

inLive Hub SFU

This Golang package is an SFU library based on Pion WebRTC. It is designed to be used in the inLive Hub project, but it can also be used in other projects. The goal is to have a Golang SFU library that is portable but easy to extend.

Installation

This is a Go module, so you can install it by running this command in your app directory:

go get github.com/inlivedev/sfu

Features

  • Group call
  • Screen sharing
  • Perfect negotiation
  • Data channel - note: only room channel currenty available
  • Simulcast
  • Scalable Video Coding (SVC)
  • Voice activity detection
  • Room statistic

Components:

This SFU package has four components:

  1. Client, a WebRTC client as a relay client in the SFU.
  2. SFU, the SFU server.
  3. Room, a signaling controller between SFU and clients.
  4. Room Manager, a controller to manage multiple rooms

How to use

The one that you will interact with will be the room and the room manager. A server will at least have a single room manager. Before being able to run a group video call, you need to create a room with the room manager, then use that room to add clients to it. You can use any protocol as your signaling controller.

SFU <---> Room <---> REST/WebSocket/gRPC <---> browser/app
 |
 |
 \/
 Clients

See the example folder to see how to write a group video call app with this SFU package. The following section will explain in detail how to use this package.

Connect to the SFU

On the first connection to SFU, a client will do a WebRTC negotiation, exchanging Session Description Protocol(SDP) and ice candidates. The client will send an offer SDP to initiate the negotiation. The SFU will respond with an answer SDP. Then both will exchange the ice candidates.

The steps will be like this to initiate the negotiation with the client.

  1. Add a client first to the SFU by calling AddClient(clientID, sfu.DefaultClientOptions()) on the current room instance. The clientID must be a unique string. The client options can be customized, but the default should be enough.
  2. Once added, now we can access the relay client from the SFU through currentRoom.SFU.GetClient(clientID). The relay client is a WebRTC client on the SFU side that will be used to negotiate with the client.
  3. To start the negotiation you can pass the offer SDP from the client to client.Negotiate(offer) method. The method will return an answer SDP that you need to pass back to the client. As part of the negotiation, you need to pass the ice candidates from the client to client.AddICECandidate(candidate) method.
  4. You also need to pass the ice candidates from the relay client to the client. You can get the ice candidates from the relay client by listening to the client.OnICECandidate event. The event will be triggered when the relay client has a new ice candidate. You only need to send this ice candidate to the client.

Once you complete the five steps above, the connection should be established. See the example of how the connection is established here

Publish and subscribe tracks

When a client wants to publish a track to the SFU, usually the flow is like this:

  1. Get the media tracks from either the camera or the screen sharing. You can use getUserMedia to get the media tracks.
  2. Add the media tracks to the WebRTC PeerConnection instance. You can use addTrack to add the media tracks to the PeerConnection instance.
  3. This will add the tracks to SFU but won't be published until the client sets the track source type either media or screen.
  4. When the track is added to SFU, the client will trigger client.OnTrackAdded([]*tracks). We need to use this event to set the track source type by calling client.SetTracksSourceType(map[trackTypes string]TrackType)`
  5. When successful, this will trigger client.OnTrackAvailable([]*tracks) event on other clients.
  6. Use this event to subscribe to the tracks by calling client.SubscribeTracks(tracksReq []SubscribeTrackRequest) method. When successful, it will trigger peerConnection.OnTrack() event that we can use to attach the track to the HTML video element. Or instead of manually subscribing to each track, you can also use client.SubscribeAllTracks() method to subscribe to all available tracks. You only need to call it once, and all available tracks will automatically added to the PeerConnection instance.

See the client_test.go for more details on how to publish and subscribe to tracks.

Renegotiation

Usually, renegotiation will be needed when a new track is added or removed. The renegotiation can be initiated by the SFU if a new client joins the room and publishes a new track to the room. To broadcast the track to all clients, the SFU must renegotiate with each client to inform them about the new tracks.

Renegotiation from the SFU

To wait for the renegotiation process from SFU to make sure you receive a new track once published in a room, you can do this:

  1. When creating a new client after calling currentRoom.addClient() method, you can listen to the client.OnRenegotiation event. The event will be triggered when the SFU is trying to renegotiate with the client.
  2. Once you receive an offer from the SFU, you can pass the offer SDP to the client and get the answer to pass back to the SFU.
  3. The event client.OnRenegotiation must return an answer SDP received from the client, and it suggested having a timeout when waiting for the answer from the client. If the timeout is reached, you can return an empty SDP to the SFU.

See the example of how the renegotiation is handled here

Renegotiation from the client

The renegotiation also can be initiated by the client if the client is adding a new track, for example, by doing a screen sharing. Because both sides can initiate the renegotiation, there is a possibility that both sides are trying to renegotiate at the same time.

To prevent this, we need to check with the SFU relay client if it is allowed to do renegotiation from the client side by checking the client.IsAllowNegotiation() method. If it returns true, then we can start the renegotiation by calling client.Negotiate(offer) method. The same method that we used for the first negotiation. The SFU will respond with an SDP answer to the client. Make sure after you call client.IsAllowNegotiation() method, you also call client.Negotiate(offer) method to make sure the in-renegotiation state is processed by the SFU. If you do not call the following method, the SFU will think that the client is doing a renegotiation and won't initiate the renegotiation.

If the client.IsAllowNegotiation() is returned false, it means the SFU is currently trying to renegotiate with the client. So the client should wait until the SFU is done renegotiating with the client. In the browser, you can listen to the onnegotiationneeded event to know when the SFU is done renegotiating with the client.

Leave the room

If a client wants to leave a room or disconnect from the SFU. You can close the PeerConnection instance on the client side. The SFU will detect that the client is closed and will remove the client from the room.

Logging

This library is using Glog for logging. You can set the log level by setting the -flag stderrthreshold=warning when running an application from the command line. You can control it also from your app using the flag package. The default log level is info. The available log levels are info, warning, error, fatal, and panic. You can read more about Glog here

To set the log printing to stderr instead of a file, you can set the -flag logtostderr=true flag variable to true. The default is false.

Licence

MIT License - see LICENSE for the full text

Documentation

Index

Constants

View Source 
const (
	ClientStateNew     = 0
	ClientStateActive  = 1
	ClientStateRestart = 2
	ClientStateEnded   = 3

	ClientTypePeer       = "peer"
	ClientTypeUpBridge   = "upbridge"
	ClientTypeDownBridge = "downbridge"

	QualityAudioRed = 5
	QualityAudio    = 4
	QualityHigh     = 3
	QualityMid      = 2
	QualityLow      = 1
	QualityNone     = 0
)
View Source 
const (
	KEEPLAYER      = OperationType(0)
	SCALEDOWNLAYER = OperationType(1)
	SCALEUPLAYER   = OperationType(2)
)
View Source 
const (
	StateRoomOpen       = "open"
	StateRoomClosed     = "closed"
	EventRoomClosed     = "room_closed"
	EventRoomClientLeft = "room_client_left"
)
View Source 
const (
	TrackTypeMedia  = "media"
	TrackTypeScreen = "screen"
)
View Source 
const (
	SdesRepairRTPStreamIDURI = "urn:ietf:params:rtp-hdrext:sdes:repaired-rtp-stream-id"
)

Variables

View Source 
var (
	ErrAlreadyClaimed          = errors.New("bwcontroller: already claimed")
	ErrorInsufficientBandwidth = errors.New("bwcontroller: bandwidth is insufficient")
)
View Source 
var (
	ErrNegotiationIsNotRequested = errors.New("client: error negotiation is called before requested")
	ErrClientStoped              = errors.New("client: error client already stopped")
)
View Source 
var (
	ErrIncompleteRedHeader = errors.New("util: incomplete RED header")
	ErrIncompleteRedBlock  = errors.New("util: incomplete RED block")
)
View Source 
var (
	H264KeyFrame2x2SPS = []byte{
		0x67, 0x42, 0xc0, 0x1f, 0x0f, 0xd9, 0x1f, 0x88,
		0x88, 0x84, 0x00, 0x00, 0x03, 0x00, 0x04, 0x00,
		0x00, 0x03, 0x00, 0xc8, 0x3c, 0x60, 0xc9, 0x20,
	}
	H264KeyFrame2x2PPS = []byte{
		0x68, 0x87, 0xcb, 0x83, 0xcb, 0x20,
	}
	H264KeyFrame2x2IDR = []byte{
		0x65, 0x88, 0x84, 0x0a, 0xf2, 0x62, 0x80, 0x00,
		0xa7, 0xbe,
	}
	H264KeyFrame2x2 = [][]byte{H264KeyFrame2x2SPS, H264KeyFrame2x2PPS, H264KeyFrame2x2IDR}

	OpusSilenceFrame = []byte{
		0xf8, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	}
)
View Source 
var (
	ErrClientNotFound = errors.New("client not found")
	ErrClientExists   = errors.New("client already exists")

	ErrRoomIsClosed   = errors.New("room is closed")
	ErrRoomIsNotEmpty = errors.New("room is not empty")
	ErrDecodingData   = errors.New("error decoding data")
	ErrEncodingData   = errors.New("error encoding data")
	ErrNotFound       = errors.New("not found")
)
View Source 
var (
	ErrRoomNotFound             = errors.New("manager: room not found")
	ErrRoomAlreadyExists        = errors.New("manager: room already exists")
	ErrRemoteRoomConnectTimeout = errors.New("manager: timeout connecting to remote room")

	RoomTypeLocal  = "local"
	RoomTypeRemote = "remote"
)
View Source 
var (
	ErrPacketTooLate   = errors.New("packetbuffers: packet is too late")
	ErrPacketDuplicate = errors.New("packetbuffers: packet is duplicate")
)
View Source 
var (
	ErrCantDecide = errors.New("can't decide if upscale or downscale the layer")
	ErrDuplicate  = errors.New("packet sequence already exists in the cache")
)
View Source 
var (
	ErrTrackExists      = errors.New("client: error track already exists")
	ErrTrackIsNotExists = errors.New("client: error track is not exists")
)
View Source 
var (
	ErrCLientStatsNotFound = errors.New("client stats not found")
)
View Source 
var (
	ErrDataChannelExists = errors.New("error: data channel already exists")
)
View Source 
var (
	ErrMetaNotFound = errors.New("meta: metadata not found")
)
View Source 
var (
	ErrQueueIsClosed = errors.New("queue is closed")
)

Functions

func AddSimulcastVideoTracks 

func AddSimulcastVideoTracks(ctx context.Context, pc *webrtc.PeerConnection, trackID, streamID string) error

func CountTracks 

func CountTracks(sdp string) int

func FlattenErrors 

func FlattenErrors(errs []error) error

func GenerateID 

func GenerateID(length int) string

func GenerateSecureToken 

func GenerateSecureToken() string

func GetLocalIp 

func GetLocalIp() (net.IP, error)

func GetMediaEngine 

func GetMediaEngine() *webrtc.MediaEngine

func GetReceiverStats 

func GetReceiverStats(pc *webrtc.PeerConnection, statsGetter stats.Getter) map[webrtc.SSRC]stats.Stats

func GetSenderStats 

func GetSenderStats(pc *webrtc.PeerConnection, statsGetter stats.Getter) map[webrtc.SSRC]stats.Stats

func GetStaticAudioTrack 

func GetStaticAudioTrack(ctx context.Context, trackID, streamID string, loop bool) (*webrtc.TrackLocalStaticSample, chan bool)

func GetStaticTracks 

func GetStaticTracks(ctx context.Context, streamID string, loop bool) ([]*webrtc.TrackLocalStaticSample, chan bool)

func GetStaticVideoTrack 

func GetStaticVideoTrack(ctx context.Context, trackID, streamID string, loop bool, quality string) (*webrtc.TrackLocalStaticSample, chan bool)

func GetUfragAndPass 

func GetUfragAndPass(sdp string) (ufrag, pass string)

func IsKeyframe 

func IsKeyframe(codec string, packet *rtp.Packet) bool

func IsRTPPacketLate 

func IsRTPPacketLate(packetSeqNum uint16, lastSeqNum uint16) bool

func Keyframe 

func Keyframe(codec string, packet *rtp.Packet) (bool, bool)

This keyframe related code is taken from https://github.com/jech/galene/blob/cc2ed144843ef5ebc4353b7096708355cab3b992/codecs/codecs.go#L17 all credits belongs to Juliusz Chroboczek @jech the creator of Galene

Keyframe determines if packet is the start of a keyframe. It returns (true, true) if that is the case, (false, true) if that is definitely not the case, and (false, false) if the information cannot be determined.

func KeyframeDimensions 

func KeyframeDimensions(codec string, packet *rtp.Packet) (uint32, uint32)

func LoadVp9Track 

func LoadVp9Track(ctx context.Context, pc *webrtc.PeerConnection, videoFileName string, loop bool) *webrtc.RTPSender

func NewQueue 

func NewQueue(ctx context.Context) *queue

func RegisterCodecs 

func RegisterCodecs(m *webrtc.MediaEngine, codecs []string) error

func RegisterDefaultCodecs 

func RegisterDefaultCodecs(m *webrtc.MediaEngine) error

func RegisterSimulcastHeaderExtensions 

func RegisterSimulcastHeaderExtensions(m *webrtc.MediaEngine, codecType webrtc.RTPCodecType)

func SendBlackImageFrames 

func SendBlackImageFrames(startSequence uint16, localRTP *webrtc.TrackLocalStaticRTP, sample *media.Sample) (uint16, error)

func SetPeerConnectionTracks 

func SetPeerConnectionTracks(ctx context.Context, peerConnection *webrtc.PeerConnection, tracks []*webrtc.TrackLocalStaticSample)

func StartTurnServer 

func StartTurnServer(ctx context.Context, publicIP string) *turn.Server

func ThousandSeparator 

func ThousandSeparator(n int) string

Types

type BitrateConfigs 

type BitrateConfigs struct {
	AudioRed         uint32 `json:"audio_red" example:"75000"`
	Audio            uint32 `json:"audio" example:"48000"`
	Video            uint32 `json:"video" example:"1200000"`
	VideoHigh        uint32 `json:"video_high" example:"1200000"`
	VideoHighPixels  uint32 `json:"video_high_pixels" example:"921600"`
	VideoMid         uint32 `json:"video_mid" example:"500000"`
	VideoMidPixels   uint32 `json:"video_mid_pixels" example:"259200"`
	VideoLow         uint32 `json:"video_low" example:"150000"`
	VideoLowPixels   uint32 `json:"video_low_pixels" example:"64800"`
	InitialBandwidth uint32 `json:"initial_bandwidth" example:"1000000"`
}

BitrateConfigs is the configuration for the bitrate that will be used for adaptive bitrates controller The paramenter is in bps (bit per second) for non pixels parameters. For pixels parameters, it is total pixels (width * height) of the video. High, Mid, and Low are the references for bitrate controller to decide the max bitrate to send to the client.

func DefaultBitrates 

func DefaultBitrates() BitrateConfigs

type Cache 

type Cache struct {
	SeqNum    uint16
	Timestamp uint32
	BaseSeq   uint16
	// packet TID
	PTID uint8
	// packet SID
	PSID uint8
	// stream TID
	TID uint8
	// stream SID
	SID uint8
}

type Client 

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

func CreateDataPair 

func CreateDataPair(ctx context.Context, room *Room, iceServers []webrtc.ICEServer, peerName string, onDataChannel func(d *webrtc.DataChannel)) (*webrtc.PeerConnection, *Client, stats.Getter, chan webrtc.PeerConnectionState)

func CreatePeerPair 

func CreatePeerPair(ctx context.Context, room *Room, iceServers []webrtc.ICEServer, peerName string, loop, isSimulcast bool) (*webrtc.PeerConnection, *Client, stats.Getter, chan bool)

func NewClient 

func NewClient(s *SFU, id string, name string, peerConnectionConfig webrtc.Configuration, opts ClientOptions) *Client

func (*Client) AddICECandidate 

func (c *Client) AddICECandidate(candidate webrtc.ICECandidateInit) error

func (*Client) ClientTracks 

func (c *Client) ClientTracks() map[string]iClientTrack

func (*Client) CompleteNegotiation 

func (c *Client) CompleteNegotiation(answer webrtc.SessionDescription)

func (*Client) Context 

func (c *Client) Context() context.Context

func (*Client) EnableDebug 

func (c *Client) EnableDebug()

func (*Client) End 

func (c *Client) End()

End will wait until the client is completely stopped

func (*Client) GetEstimatedBandwidth 

func (c *Client) GetEstimatedBandwidth() uint32

GetEstimatedBandwidth returns the estimated bandwidth in bits per second based on Google Congestion Controller estimation. If the congestion controller is not enabled, it will return the initial bandwidth. If the receiving bandwidth is not 0, it will return the smallest value between the estimated bandwidth and the receiving bandwidth.

func (*Client) ID 

func (c *Client) ID() string

func (*Client) InitNegotiation 

func (c *Client) InitNegotiation() *webrtc.SessionDescription

Init and Complete negotiation is used for bridging the room between servers

func (*Client) IsAllowNegotiation 

func (c *Client) IsAllowNegotiation() bool

ask if allowed for remote negotiation is required before call negotiation to make sure there is no racing condition of negotiation between local and remote clients. return false means the negotiation is in process, the requester must have a mechanism to repeat the request once it's done. requesting this must be followed by calling Negotate() to make sure the state is completed. Failed on called Negotiate() will cause the client to be in inconsistent state.

func (*Client) IsBridge 

func (c *Client) IsBridge() bool

func (*Client) IsDebugEnabled 

func (c *Client) IsDebugEnabled() bool

func (*Client) IsVADEnabled 

func (c *Client) IsVADEnabled() bool

func (*Client) Name 

func (c *Client) Name() string

func (*Client) Negotiate 

func (c *Client) Negotiate(offer webrtc.SessionDescription) (*webrtc.SessionDescription, error)

SDP negotiation from remote client

func (*Client) OnAllowedRemoteRenegotiation 

func (c *Client) OnAllowedRemoteRenegotiation(callback func())

OnAllowedRemoteRenegotiation event is called when the SFU is done with the renegotiation and ready to receive the renegotiation from the client. Use this event to trigger the client to do renegotiation if needed.

func (*Client) OnBeforeRenegotiation 

func (c *Client) OnBeforeRenegotiation(callback func(context.Context) bool)

OnBeforeRenegotiation event is called before the SFU is trying to renegotiate with the client. The client must be listen for this event and set the callback to return true if the client is ready to renegotiate and no current negotiation is in progress from the client.

func (*Client) OnConnectionStateChanged 

func (c *Client) OnConnectionStateChanged(callback func(webrtc.PeerConnectionState))

OnConnectionStateChanged event is called when the SFU connection state is changed. The callback will receive the connection state as the new state.

func (*Client) OnIceCandidate 

func (c *Client) OnIceCandidate(callback func(context.Context, *webrtc.ICECandidate))

OnTracksAvailable event is called when the SFU has ice candidate that need to pass to the client. This event will triggered during negotiation process to exchanges ice candidates between SFU and client. The client can also pass the ice candidate to the SFU using `client.AddICECandidate()` method.

func (*Client) OnJoined 

func (c *Client) OnJoined(callback func())

OnJoined event is called when the client is joined to the room. This doesn't mean that the client's tracks are already published to the room. This event can be use to track number of clients in the room.

func (*Client) OnLeft 

func (c *Client) OnLeft(callback func())

OnLeft event is called when the client is left from the room. This event can be use to track number of clients in the room.

func (*Client) OnNetworkConditionChanged 

func (c *Client) OnNetworkConditionChanged(callback func(networkmonitor.NetworkConditionType))

func (*Client) OnRenegotiation 

func (c *Client) OnRenegotiation(callback func(context.Context, webrtc.SessionDescription) (webrtc.SessionDescription, error))

OnRenegotiation event is called when the SFU is trying to renegotiate with the client. The callback will receive the SDP offer from the SFU that must be use to create the SDP answer from the client. The SDP answer then can be passed back to the SFU using `client.CompleteNegotiation()` method.

func (*Client) OnTrackRemoved 

func (c *Client) OnTrackRemoved(callback func(sourceType string, track *webrtc.TrackLocalStaticRTP))

OnTrackRemoved event is called when the client's track is removed from the room. Usually this triggered when the client is disconnected from the room or a track is unpublished from the client.

func (*Client) OnTracksAdded 

func (c *Client) OnTracksAdded(callback func(addedTracks []ITrack))

OnTrackAdded event is to confirmed the source type of the pending published tracks. If the event is not listened, the pending published tracks will be ignored and not published to other clients. Once received, respond with `client.SetTracksSourceType()“ to confirm the source type of the pending published tracks

func (*Client) OnTracksAvailable 

func (c *Client) OnTracksAvailable(callback func([]ITrack))

OnTracksAvailable event is called when the SFU is trying to publish new tracks to the client. The client then can subscribe to the tracks by calling `client.SubscribeTracks()` method.

func (*Client) OnVoiceDetected 

func (c *Client) OnVoiceDetected(callback func(activity voiceactivedetector.VoiceActivity))

OnVoiceDetected event is called when the SFU is detecting voice activity in the room. The callback will receive the voice activity data that can be use for visual indicator of current speaker.

func (*Client) PeerConnection 

func (c *Client) PeerConnection() *PeerConnection

func (*Client) PublishedTracks 

func (c *Client) PublishedTracks() []ITrack

func (*Client) SFU 

func (c *Client) SFU() *SFU

func (*Client) SetName 

func (c *Client) SetName(name string)

SetName update the name of the client, that previously set on create client The name then later can use by call client.Name() method

func (*Client) SetQuality 

func (c *Client) SetQuality(quality QualityLevel)

SetQuality method is to set the maximum quality of the video that will be sent to the client. This is for bandwidth efficiency purpose and use when the video is rendered in smaller size than the original size.

func (*Client) SetReceivingBandwidthLimit 

func (c *Client) SetReceivingBandwidthLimit(bandwidth uint32)

SetReceivingBandwidthLimit will cap the receiving bandwidth and will overide the bandwidth estimation if the value is lower than the estimated bandwidth. This is useful to test how the SFU will behave when the bandwidth is limited

func (*Client) SetTracksSourceType 

func (c *Client) SetTracksSourceType(trackTypes map[string]TrackType)

SetTracksSourceType set the source type of the pending published tracks. This function must be called after receiving OnTracksAdded event. The source type can be "media" or "screen" Calling this method will trigger `client.OnTracksAvailable` event to other clients. The other clients then can subscribe the tracks using `client.SubscribeTracks()` method.

func (*Client) Stats 

func (c *Client) Stats() ClientTrackStats

TODO: fix the panic nil here when the client is ended

func (*Client) SubscribeTracks 

func (c *Client) SubscribeTracks(req []SubscribeTrackRequest) error

SubscribeTracks subscribe tracks from other clients that are published to this client The client must listen for `client.OnTracksAvailable` to know if a new track is available to subscribe. Calling subscribe tracks will trigger the SFU renegotiation with the client. Make sure you already listen for `client.OnRenegotiation()` before calling this method to track subscription can complete.

func (*Client) Tracks 

func (c *Client) Tracks() []ITrack

func (*Client) Type 

func (c *Client) Type() string

func (*Client) UpdatePublisherBandwidth 

func (c *Client) UpdatePublisherBandwidth(bitrate uint32)

This should get from the publisher client using RTCIceCandidatePairStats.availableOutgoingBitrate from client stats. It should be done through DataChannel so it won't required additional implementation on API endpoints where this SFU is used.

type ClientOptions 

type ClientOptions struct {
	IdleTimeout          time.Duration
	Type                 string
	EnableVoiceDetection bool
	EnablePlayoutDelay   bool
	// Configure the minimum playout delay that will be used by the client
	// Recommendation:
	// 0 ms: Certain gaming scenarios (likely without audio) where we will want to play the frame as soon as possible. Also, for remote desktop without audio where rendering a frame asap makes sense
	// 100/150/200 ms: These could be the max target latency for interactive streaming use cases depending on the actual application (gaming, remoting with audio, interactive scenarios)
	// 400 ms: Application that want to ensure a network glitch has very little chance of causing a freeze can start with a minimum delay target that is high enough to deal with network issues. Video streaming is one example.
	MinPlayoutDelay uint16
	// Configure the minimum playout delay that will be used by the client
	// Recommendation:
	// 0 ms: Certain gaming scenarios (likely without audio) where we will want to play the frame as soon as possible. Also, for remote desktop without audio where rendering a frame asap makes sense
	// 100/150/200 ms: These could be the max target latency for interactive streaming use cases depending on the actual application (gaming, remoting with audio, interactive scenarios)
	// 400 ms: Application that want to ensure a network glitch has very little chance of causing a freeze can start with a minimum delay target that is high enough to deal with network issues. Video streaming is one example.
	MaxPlayoutDelay     uint16
	JitterBufferMinWait time.Duration
	JitterBufferMaxWait time.Duration
	// On unstable network, the packets can be arrived unordered which may affected the nack and packet loss counts, set this to true to allow the SFU to handle reordered packet
	ReorderPackets bool
}

func DefaultClientOptions 

func DefaultClientOptions() ClientOptions

type ClientState 

type ClientState int

type ClientStats 

type ClientStats struct {
	Client *Client
	TrackStats
	// contains filtered or unexported fields
}

func (*ClientStats) GetReceiver 

func (c *ClientStats) GetReceiver(id, rid string) (stats.Stats, error)

func (*ClientStats) GetReceiverBitrate 

func (c *ClientStats) GetReceiverBitrate(id, rid string) (uint32, error)

func (*ClientStats) GetSender 

func (c *ClientStats) GetSender(id string) (stats.Stats, error)

func (*ClientStats) GetSenderBitrate 

func (c *ClientStats) GetSenderBitrate(id string) (uint32, error)

func (*ClientStats) Receivers 

func (c *ClientStats) Receivers() map[string]stats.Stats

func (*ClientStats) Senders 

func (c *ClientStats) Senders() map[string]stats.Stats

func (*ClientStats) SetReceiver 

func (c *ClientStats) SetReceiver(id, rid string, stats stats.Stats)

func (*ClientStats) SetSender 

func (c *ClientStats) SetSender(id string, stats stats.Stats)

func (*ClientStats) UpdateVoiceActivity 

func (c *ClientStats) UpdateVoiceActivity(ts uint32)

UpdateVoiceActivity updates voice activity duration 0 timestamp means ended

func (*ClientStats) VoiceActivity 

func (c *ClientStats) VoiceActivity() time.Duration

type ClientTrackStats 

type ClientTrackStats struct {
	ID                       string               `json:"id"`
	Name                     string               `json:"name"`
	PublisherBandwidth       uint32               `json:"publisher_bandwidth"`
	ConsumerBandwidth        uint32               `json:"consumer_bandwidth"`
	CurrentConsumerBitrate   uint32               `json:"current_bitrate"`
	CurrentPublishLimitation string               `json:"current_publish_limitation"`
	Sents                    []TrackSentStats     `json:"sent_track_stats"`
	Receives                 []TrackReceivedStats `json:"received_track_stats"`
	// in milliseconds
	VoiceActivityDuration uint32 `json:"voice_activity_duration"`
}

type ClientType 

type ClientType string

type Data 

type Data struct {
	FromID string      `json:"from_id"`
	ToID   string      `json:"to_id"`
	SentAt time.Time   `json:"sent_at"`
	Data   interface{} `json:"data"`
}

type DataChannelList 

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

func NewDataChannelList 

func NewDataChannelList(ctx context.Context) *DataChannelList

func (*DataChannelList) Add 

func (d *DataChannelList) Add(dc *webrtc.DataChannel)

func (*DataChannelList) Clear 

func (d *DataChannelList) Clear()

func (*DataChannelList) Get 

func (d *DataChannelList) Get(label string) *webrtc.DataChannel

func (*DataChannelList) Remove 

func (d *DataChannelList) Remove(dc *webrtc.DataChannel)

type DataChannelOptions 

type DataChannelOptions struct {
	Ordered   bool
	ClientIDs []string // empty means all clients
}

func DefaultDataChannelOptions 

func DefaultDataChannelOptions() DataChannelOptions

type Event 

type Event struct {
	Type string
	Time time.Time
	Data map[string]interface{}
}

type IExtension 

type IExtension interface {
	// This can be use for authentication before a client add to a room
	OnBeforeClientAdded(room *Room, clientID string) error
	OnClientAdded(room *Room, client *Client)
	OnClientRemoved(room *Room, client *Client)
}

type IManagerExtension 

type IManagerExtension interface {
	// only the first extension that returns a room or an error will be used, once a room or an error is returned, the rest of the extensions will be ignored
	OnGetRoom(manager *Manager, roomID string) (*Room, error)
	// this can be use for authentication before a room is created
	OnBeforeNewRoom(id, name, roomType string) error
	OnNewRoom(manager *Manager, room *Room)
	OnRoomClosed(manager *Manager, room *Room)
}

type IQualityPreset 

type IQualityPreset interface {
	GetSID() uint8
	GetTID() uint8
}

type IRemoteTrack 

type IRemoteTrack interface {
	ID() string
	RID() string
	PayloadType() webrtc.PayloadType
	Kind() webrtc.RTPCodecType
	StreamID() string
	SSRC() webrtc.SSRC
	Msid() string
	Codec() webrtc.RTPCodecParameters
	Read(b []byte) (n int, attributes interceptor.Attributes, err error)
	ReadRTP() (*rtp.Packet, interceptor.Attributes, error)
	SetReadDeadline(deadline time.Time) error
}

func NewTrackRelay 

func NewTrackRelay(id, streamid, rid string, kind webrtc.RTPCodecType, ssrc webrtc.SSRC, mimeType string, rtpChan chan *rtp.Packet) IRemoteTrack

type ITrack 

type ITrack interface {
	ID() string
	StreamID() string
	ClientID() string
	IsSimulcast() bool
	IsScaleable() bool
	IsProcessed() bool
	SetSourceType(TrackType)
	SourceType() TrackType
	SetAsProcessed()
	OnRead(func(*rtp.Packet, QualityLevel))
	IsScreen() bool
	IsRelay() bool
	Kind() webrtc.RTPCodecType
	MimeType() string
	TotalTracks() int
	Context() context.Context
	Relay(func(webrtc.SSRC, *rtp.Packet))
	PayloadType() webrtc.PayloadType
}

type Manager 

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

Manager is a struct that manages all the rooms

func NewManager 

func NewManager(ctx context.Context, name string, options Options) *Manager

func (*Manager) AddExtension 

func (m *Manager) AddExtension(extension IManagerExtension)

func (*Manager) Close 

func (m *Manager) Close()

Close will close all room and canceling the context

func (*Manager) CloseRoom 

func (m *Manager) CloseRoom(id string) error

CloseRoom will stop all clients in the room and close it. This is a shortcut to find a room with id and close it.

func (*Manager) Context 

func (m *Manager) Context() context.Context

func (*Manager) CreateRoomID 

func (m *Manager) CreateRoomID() string

func (*Manager) GetRoom 

func (m *Manager) GetRoom(id string) (*Room, error)

func (*Manager) Name 

func (m *Manager) Name() string

func (*Manager) NewRoom 

func (m *Manager) NewRoom(id, name, roomType string, opts RoomOptions) (*Room, error)

func (*Manager) RoomsCount 

func (m *Manager) RoomsCount() int

type Metadata 

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

func NewMetadata 

func NewMetadata() *Metadata

func (*Metadata) Delete 

func (m *Metadata) Delete(key string) error

func (*Metadata) ForEach 

func (m *Metadata) ForEach(f func(key string, value interface{}))

func (*Metadata) Get 

func (m *Metadata) Get(key string) (interface{}, error)

func (*Metadata) OnChanged 

func (m *Metadata) OnChanged(f func(key string, value interface{})) *OnMetaChangedCallback

OnChanged registers a callback to be called when a metadata is changed Make sure OnMetaChangedSubscription.Unsubscribe() is called when the callback is no longer needed

func (*Metadata) Set 

func (m *Metadata) Set(key string, value interface{})

type OnMetaChangedCallback 

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

func (*OnMetaChangedCallback) Remove 

func (s *OnMetaChangedCallback) Remove()

Unsubscribe removes the callback from the metadata Make sure to call the method once the callback is no longer needed

type OperationType 

type OperationType uint8

type Options 

type Options struct {
	EnableMux                bool
	PortStart                uint16
	PortEnd                  uint16
	WebRTCPort               int
	EnableBridging           bool
	EnableBandwidthEstimator bool
	IceServers               []webrtc.ICEServer
	PublicIP                 string
	// If PublicIP is set, then you should consider to set this NAT1To1IPsCandidateType as well. By default, it is set to ICECandidateTypeHost.
	// Two types of candidates are supported:
	//
	// ICECandidateTypeHost:
	//
	//	The public IP address will be used for the host candidate in the SDP.
	//
	// ICECandidateTypeSrflx:
	//
	//	A server reflexive candidate with the given public IP address will be added to the SDP.
	//
	// Please note that if you choose ICECandidateTypeHost, then the private IP address
	// won't be advertised with the peer. Also, this option cannot be used along with mDNS.
	//
	// If you choose ICECandidateTypeSrflx, it simply adds a server reflexive candidate
	// with the public IP. The host candidate is still available along with mDNS
	// capabilities unaffected. Also, you cannot give STUN server URL at the same time.
	// It will result in an error otherwise.
	NAT1To1IPsCandidateType webrtc.ICECandidateType
	MinPlayoutDelay         uint16
	MaxPlayoutDelay         uint16
}

func DefaultOptions 

func DefaultOptions() Options

type PeerConnection 

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

func (*PeerConnection) AddTrack 

func (p *PeerConnection) AddTrack(track *webrtc.TrackLocalStaticRTP) (*webrtc.RTPSender, error)

func (*PeerConnection) Close 

func (p *PeerConnection) Close() error

func (*PeerConnection) PC 

func (p *PeerConnection) PC() *webrtc.PeerConnection

func (*PeerConnection) RemoveTrack 

func (p *PeerConnection) RemoveTrack(sender *webrtc.RTPSender) error

type PublishedTrack 

type PublishedTrack struct {
	ClientID string
	Track    webrtc.TrackLocal
}

type QualityLevel 

type QualityLevel uint32

func RIDToQuality 

func RIDToQuality(RID string) QualityLevel

func Uint32ToQualityLevel 

func Uint32ToQualityLevel(quality uint32) QualityLevel

type QualityPreset 

type QualityPreset struct {
	SID uint8 `json:"sid" example:"2"`
	TID uint8 `json:"tid" example:"2"`
}

func (QualityPreset) GetSID 

func (q QualityPreset) GetSID() uint8

func (QualityPreset) GetTID 

func (q QualityPreset) GetTID() uint8

type QualityPresets 

type QualityPresets struct {
	High QualityPreset `json:"high"`
	Mid  QualityPreset `json:"mid"`
	Low  QualityPreset `json:"low"`
}

func DefaultQualityPresets 

func DefaultQualityPresets() QualityPresets

type RelayTrack 

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

TrackRemote represents a single inbound source of media

func (*RelayTrack) Codec 

func (t *RelayTrack) Codec() webrtc.RTPCodecParameters

Codec gets the Codec of the track

func (*RelayTrack) ID 

func (t *RelayTrack) ID() string

ID is the unique identifier for this Track. This should be unique for the stream, but doesn't have to globally unique. A common example would be 'audio' or 'video' and StreamID would be 'desktop' or 'webcam'

func (*RelayTrack) IsRelay 

func (t *RelayTrack) IsRelay() bool

IsRelay returns true if this track is a relay track

func (*RelayTrack) Kind 

func (t *RelayTrack) Kind() webrtc.RTPCodecType

Kind gets the Kind of the track

func (*RelayTrack) Msid 

func (t *RelayTrack) Msid() string

Msid gets the Msid of the track

func (*RelayTrack) PayloadType 

func (t *RelayTrack) PayloadType() webrtc.PayloadType

PayloadType gets the PayloadType of the track

func (*RelayTrack) RID 

func (t *RelayTrack) RID() string

RID gets the RTP Stream ID of this Track With Simulcast you will have multiple tracks with the same ID, but different RID values. In many cases a TrackRemote will not have an RID, so it is important to assert it is non-zero

func (*RelayTrack) Read 

func (t *RelayTrack) Read(b []byte) (n int, attributes interceptor.Attributes, err error)

Read reads data from the track.

func (*RelayTrack) ReadRTP 

func (t *RelayTrack) ReadRTP() (*rtp.Packet, interceptor.Attributes, error)

ReadRTP is a convenience method that wraps Read and unmarshals for you.

func (*RelayTrack) SSRC 

func (t *RelayTrack) SSRC() webrtc.SSRC

SSRC gets the SSRC of the track

func (*RelayTrack) SetReadDeadline 

func (t *RelayTrack) SetReadDeadline(deadline time.Time) error

SetReadDeadline sets the max amount of time the RTP stream will block before returning. 0 is forever.

func (*RelayTrack) StreamID 

func (t *RelayTrack) StreamID() string

StreamID is the group this track belongs too. This must be unique

type Room 

type Room struct {
	RenegotiationChan map[string]chan bool

	OnEvent func(event Event)
	// contains filtered or unexported fields
}

func (*Room) AddClient 

func (r *Room) AddClient(id, name string, opts ClientOptions) (*Client, error)

func (*Room) AddExtension 

func (r *Room) AddExtension(extension IExtension)

func (*Room) BitrateConfigs 

func (r *Room) BitrateConfigs() BitrateConfigs

BitrateConfigs return the current bitrate configuration that used in bitrate controller Client should use this to configure the bitrate when publishing media tracks Inconsistent bitrate configuration between client and server will result missed bitrate calculation and could affecting packet loss and media quality

func (*Room) Close 

func (r *Room) Close() error

Close the room and stop all clients. All connected clients will stopped and removed from the room. All clients will get `connectionstateevent` with `closed` state. https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/connectionstatechange_event

func (*Room) CodecPreferences 

func (r *Room) CodecPreferences() []string

CodecPreferences return the current codec preferences that used in SFU Client should use this to configure the used codecs when publishing media tracks Inconsistent codec preferences between client and server can make the SFU cannot handle the codec properly

func (*Room) Context 

func (r *Room) Context() context.Context

func (*Room) CreateClientID 

func (r *Room) CreateClientID() string

Generate a unique client ID for this room

func (*Room) CreateDataChannel 

func (r *Room) CreateDataChannel(label string, opts DataChannelOptions) error

func (*Room) ID 

func (r *Room) ID() string

func (*Room) Kind 

func (r *Room) Kind() string

func (*Room) Meta 

func (r *Room) Meta() *Metadata

func (*Room) Name 

func (r *Room) Name() string

func (*Room) OnClientJoined 

func (r *Room) OnClientJoined(callback func(client *Client))

func (*Room) OnClientLeft 

func (r *Room) OnClientLeft(callback func(client *Client))

Use this to get notified when a client is stopped and completly removed from the room

func (*Room) OnRoomClosed 

func (r *Room) OnRoomClosed(callback func(id string))

Use this to get notified when a room is closed

func (*Room) Options 

func (r *Room) Options() RoomOptions

func (*Room) SFU 

func (r *Room) SFU() *SFU

func (*Room) Stats 

func (r *Room) Stats() RoomStats

Get the room real time stats. This will return the current room stats. The client stats and it's tracks will be removed from the stats if the client or track is removed. But the aggregated stats will still be there and included in the room stats even if they're removed.

func (*Room) StopClient 

func (r *Room) StopClient(id string) error

Stopping client is async, it will just stop the client and return immediately You should use OnClientLeft to get notified when the client is actually stopped

type RoomOptions 

type RoomOptions struct {
	// Configures the bitrates configuration that will be used by the room
	// Make sure to use the same bitrate config when publishing video because this is used to manage the usage bandwidth in this room
	Bitrates BitrateConfigs `json:"bitrates"`
	// Configures the codecs that will be used by the room
	Codecs []string `` /* 135-byte string literal not displayed */
	// Configures the interval in nanoseconds of sending PLIs to clients that will generate keyframe, default is 0 means it will use auto PLI request only when needed.
	// More often means more bandwidth usage but more stability on video quality when packet loss, but client libs supposed to request PLI automatically when needed.
	PLIInterval time.Duration `json:"pli_interval_ns" example:"0"`
	// Configure the mapping of spatsial and temporal layers to quality level
	// Use this to use scalable video coding (SVC) to control the bitrate level of the video
	QualityPresets QualityPresets `json:"quality_presets"`
	// Configure the timeout in nanonseconds when the room is empty it will close after the timeout exceeded. Default is 5 minutes
	EmptyRoomTimeout time.Duration `json:"empty_room_timeout_ns" example:"300000000000" default:"300000000000"`
}

func DefaultRoomOptions 

func DefaultRoomOptions() RoomOptions

type RoomStats 

type RoomStats struct {
	ActiveSessions  int                         `json:"active_sessions"`
	ClientsCount    int                         `json:"clients_count"`
	BitrateSent     uint64                      `json:"bitrate_sent"`
	BitrateReceived uint64                      `json:"bitrate_received"`
	BytesIngress    uint64                      `json:"bytes_ingress"`
	BytesEgress     uint64                      `json:"bytes_egress"`
	ReceivedTracks  StatTracks                  `json:"received_tracks"`
	SentTracks      StatTracks                  `json:"sent_tracks"`
	Timestamp       time.Time                   `json:"timestamp"`
	ClientStats     map[string]ClientTrackStats `json:"client_stats"`
}

type SFU 

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

func New 

func New(ctx context.Context, opts sfuOptions) *SFU

@Param muxPort: port for udp mux

func (*SFU) AddRelayTrack 

func (s *SFU) AddRelayTrack(ctx context.Context, id, streamid, rid string, client *Client, kind webrtc.RTPCodecType, ssrc webrtc.SSRC, mimeType string, rtpChan chan *rtp.Packet) error

func (*SFU) AvailableTracks 

func (s *SFU) AvailableTracks() []ITrack

func (*SFU) CreateDataChannel 

func (s *SFU) CreateDataChannel(label string, opts DataChannelOptions) error

func (*SFU) GetClient 

func (s *SFU) GetClient(id string) (*Client, error)

func (*SFU) NewClient 

func (s *SFU) NewClient(id, name string, opts ClientOptions) *Client

func (*SFU) OnClientAdded 

func (s *SFU) OnClientAdded(callback func(*Client))

func (*SFU) OnClientRemoved 

func (s *SFU) OnClientRemoved(callback func(*Client))

func (*SFU) OnStopped 

func (s *SFU) OnStopped(callback func())

func (*SFU) OnTracksAvailable 

func (s *SFU) OnTracksAvailable(callback func(tracks []ITrack))

func (*SFU) PLIInterval 

func (s *SFU) PLIInterval() time.Duration

func (*SFU) QualityPresets 

func (s *SFU) QualityPresets() QualityPresets

func (*SFU) Stop 

func (s *SFU) Stop()

func (*SFU) TotalActiveSessions 

func (s *SFU) TotalActiveSessions() int

type SFUClients 

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

func (*SFUClients) Add 

func (s *SFUClients) Add(client *Client) error

func (*SFUClients) GetClient 

func (s *SFUClients) GetClient(id string) (*Client, error)

func (*SFUClients) GetClients 

func (s *SFUClients) GetClients() map[string]*Client

func (*SFUClients) Length 

func (s *SFUClients) Length() int

func (*SFUClients) Remove 

func (s *SFUClients) Remove(client *Client) error

type SFUDataChannel 

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

func NewSFUDataChannel 

func NewSFUDataChannel(label string, opts DataChannelOptions) *SFUDataChannel

func (*SFUDataChannel) ClientIDs 

func (s *SFUDataChannel) ClientIDs() []string

func (*SFUDataChannel) IsOrdered 

func (s *SFUDataChannel) IsOrdered() bool

type SFUDataChannelList 

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

func NewSFUDataChannelList 

func NewSFUDataChannelList() *SFUDataChannelList

func (*SFUDataChannelList) Add 

func (s *SFUDataChannelList) Add(label string, opts DataChannelOptions) *SFUDataChannel

func (*SFUDataChannelList) Get 

func (s *SFUDataChannelList) Get(label string) *SFUDataChannel

func (*SFUDataChannelList) Remove 

func (s *SFUDataChannelList) Remove(dc *SFUDataChannel)

type SimulcastTrack 

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

func (*SimulcastTrack) AddRemoteTrack 

func (t *SimulcastTrack) AddRemoteTrack(track IRemoteTrack, minWait, maxWait time.Duration, stats stats.Getter, onStatsUpdated func(*stats.Stats), onPLI func()) *remoteTrack

func (*SimulcastTrack) ClientID 

func (t *SimulcastTrack) ClientID() string

func (*SimulcastTrack) Context 

func (t *SimulcastTrack) Context() context.Context

func (*SimulcastTrack) ID 

func (t *SimulcastTrack) ID() string

TODO: this is contain multiple tracks, there is a possibility remote track high is not available yet

func (*SimulcastTrack) IsProcessed 

func (t *SimulcastTrack) IsProcessed() bool

func (*SimulcastTrack) IsRelay 

func (t *SimulcastTrack) IsRelay() bool

func (*SimulcastTrack) IsScaleable 

func (t *SimulcastTrack) IsScaleable() bool

func (*SimulcastTrack) IsScreen 

func (t *SimulcastTrack) IsScreen() bool

func (*SimulcastTrack) IsSimulcast 

func (t *SimulcastTrack) IsSimulcast() bool

func (*SimulcastTrack) IsTrackComplete 

func (t *SimulcastTrack) IsTrackComplete() bool

func (*SimulcastTrack) Kind 

func (t *SimulcastTrack) Kind() webrtc.RTPCodecType

func (*SimulcastTrack) MimeType 

func (t *SimulcastTrack) MimeType() string

func (*SimulcastTrack) OnRead 

func (t *SimulcastTrack) OnRead(callback func(*rtp.Packet, QualityLevel))

func (*SimulcastTrack) OnTrackComplete 

func (t *SimulcastTrack) OnTrackComplete(f func())

func (*SimulcastTrack) PayloadType 

func (t *SimulcastTrack) PayloadType() webrtc.PayloadType

func (*SimulcastTrack) RIDHigh 

func (t *SimulcastTrack) RIDHigh() string

func (*SimulcastTrack) RIDLow 

func (t *SimulcastTrack) RIDLow() string

func (*SimulcastTrack) RIDMid 

func (t *SimulcastTrack) RIDMid() string

func (*SimulcastTrack) Relay 

func (t *SimulcastTrack) Relay(f func(webrtc.SSRC, *rtp.Packet))

func (*SimulcastTrack) SSRCHigh 

func (t *SimulcastTrack) SSRCHigh() webrtc.SSRC

func (*SimulcastTrack) SSRCLow 

func (t *SimulcastTrack) SSRCLow() webrtc.SSRC

func (*SimulcastTrack) SSRCMid 

func (t *SimulcastTrack) SSRCMid() webrtc.SSRC

func (*SimulcastTrack) SetAsProcessed 

func (t *SimulcastTrack) SetAsProcessed()

func (*SimulcastTrack) SetSourceType 

func (t *SimulcastTrack) SetSourceType(sourceType TrackType)

func (*SimulcastTrack) SourceType 

func (t *SimulcastTrack) SourceType() TrackType

func (*SimulcastTrack) StreamID 

func (t *SimulcastTrack) StreamID() string

func (*SimulcastTrack) TotalTracks 

func (t *SimulcastTrack) TotalTracks() int

type StatTracks 

type StatTracks struct {
	Audio int `json:"audio"`
	Video int `json:"video"`
}

type SubscribeTrackRequest 

type SubscribeTrackRequest struct {
	ClientID string `json:"client_id"`
	TrackID  string `json:"track_id"`
}

type Track 

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

func (*Track) ClientID 

func (t *Track) ClientID() string

func (*Track) Context 

func (t *Track) Context() context.Context

func (*Track) ID 

func (t *Track) ID() string

func (*Track) IsProcessed 

func (t *Track) IsProcessed() bool

func (*Track) IsRelay 

func (t *Track) IsRelay() bool

func (*Track) IsScaleable 

func (t *Track) IsScaleable() bool

func (*Track) IsScreen 

func (t *Track) IsScreen() bool

func (*Track) IsSimulcast 

func (t *Track) IsSimulcast() bool

func (*Track) Kind 

func (t *Track) Kind() webrtc.RTPCodecType

func (*Track) MimeType 

func (t *Track) MimeType() string

func (*Track) OnRead 

func (t *Track) OnRead(callback func(*rtp.Packet, QualityLevel))

func (*Track) PayloadType 

func (t *Track) PayloadType() webrtc.PayloadType

func (*Track) Relay 

func (t *Track) Relay(f func(webrtc.SSRC, *rtp.Packet))

func (*Track) RemoteTrack 

func (t *Track) RemoteTrack() *remoteTrack

func (*Track) SSRC 

func (t *Track) SSRC() webrtc.SSRC

func (*Track) SSRCHigh 

func (t *Track) SSRCHigh() webrtc.SSRC

func (*Track) SSRCLow 

func (t *Track) SSRCLow() webrtc.SSRC

func (*Track) SSRCMid 

func (t *Track) SSRCMid() webrtc.SSRC

func (*Track) SetAsProcessed 

func (t *Track) SetAsProcessed()

func (*Track) SetSourceType 

func (t *Track) SetSourceType(sourceType TrackType)

func (*Track) SourceType 

func (t *Track) SourceType() TrackType

func (*Track) StreamID 

func (t *Track) StreamID() string

func (*Track) TotalTracks 

func (t *Track) TotalTracks() int

type TrackReceivedStats 

type TrackReceivedStats struct {
	ID              string              `json:"id"`
	StreamID        string              `json:"stream_id"`
	RID             string              `json:"rid"`
	Kind            webrtc.RTPCodecType `json:"kind"`
	Codec           string              `json:"codec"`
	CurrentBitrate  uint32              `json:"current_bitrate"`
	PacketsLost     int64               `json:"packets_lost"`
	PacketsReceived uint64              `json:"packets_received"`
	BytesReceived   int64               `json:"bytes_received"`
}

type TrackSentStats 

type TrackSentStats struct {
	ID             string              `json:"id"`
	StreamID       string              `json:"stream_id"`
	Kind           webrtc.RTPCodecType `json:"kind"`
	Codec          string              `json:"codec"`
	PacketsLost    int64               `json:"packets_lost"`
	PacketSent     uint64              `json:"packets_sent"`
	FractionLost   float64             `json:"fraction_lost"`
	BytesSent      uint64              `json:"bytes_sent"`
	CurrentBitrate uint32              `json:"current_bitrate"`
	Source         string              `json:"source"`
	Quality        QualityLevel        `json:"quality"`
}

type TrackStats 

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

type TrackType 

type TrackType string

func (TrackType) String 

func (t TrackType) String() string

type UDPMux 

type UDPMux struct {
	Port int
	// contains filtered or unexported fields
}

func NewUDPMux 

func NewUDPMux(ctx context.Context, port int) *UDPMux

func (*UDPMux) Close 

func (u *UDPMux) Close() error

Source Files

View all Source files

Directories

Path Synopsis
examples
http-websocket
pkg
fakeclient
interceptors/playoutdelay
interceptors/simulcast
interceptors/voiceactivedetector
networkmonitor
pacer
modified version of pion interceptor leaky_bucket_pacer.go https://github.com/pion/interceptor/blob/master/pkg/gcc/leaky_bucket_pacer.go
 modified version of pion interceptor leaky_bucket_pacer.go https://github.com/pion/interceptor/blob/master/pkg/gcc/leaky_bucket_pacer.go
packetmap
Credit to Galene https://github.com/jech/galene/blob/master/packetmap/packetmap.go Package packetmap implements remapping of sequence numbers and picture ids.
 Credit to Galene https://github.com/jech/galene/blob/master/packetmap/packetmap.go Package packetmap implements remapping of sequence numbers and picture ids.
rtppool
this code is from pion nack interceptor https://github.com/pion/interceptor/blob/master/pkg/nack/retainable_packet.go
 this code is from pion nack interceptor https://github.com/pion/interceptor/blob/master/pkg/nack/retainable_packet.go

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