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webrtc & websocket simple implementation.

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This commit is contained in:
Miroslav Šedivý 2020-11-05 18:06:55 +01:00
parent 3bff243dcb
commit e99047963c
3 changed files with 53 additions and 30 deletions
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20
src/internal/webrtc.ts
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@ -15,7 +15,7 @@ export interface NekoWebRTCEvents {
track: (event: RTCTrackEvent) => void
}
export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
export class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
private _peer?: RTCPeerConnection
private _channel?: RTCDataChannel
private _state: RTCIceConnectionState = 'disconnected'
@ -23,7 +23,7 @@ export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
constructor() {
super()
this._log = new Logger('webrtc')
}
@ -37,11 +37,11 @@ export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
public async connect(sdp: string, lite: boolean, servers: string[]): Promise<string> {
this._log.debug(`creating peer`)
if (!this.supported) {
throw new Error('browser does not support webrtc')
}
if (this.connected) {
throw new Error('attempting to create peer while connected')
}
@ -87,7 +87,7 @@ export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
this._peer.addTransceiver('video', { direction: 'recvonly' })
this._channel = this._peer.createDataChannel('data')
this._channel.onerror = this.onError.bind(this)
this._channel.onerror = this.onDisconnected.bind(this, new Error('peer data channel error'))
this._channel.onmessage = this.onData.bind(this)
this._channel.onclose = this.onDisconnected.bind(this, new Error('peer data channel closed'))
@ -175,17 +175,13 @@ export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
private onTrack(event: RTCTrackEvent) {
this._log.debug(`received ${event.track.kind} track from peer: ${event.track.id}`, event)
const stream = event.streams[0]
if (!stream) {
this._log.warn(`no stream provided for track ${event.track.id}(${event.track.label})`)
return
}
this.emit('track', event)
}
private onError(event: Event) {
this._log.error((event as ErrorEvent).error)
this.emit('track', event)
}
private onConnected() {
@ -201,7 +197,7 @@ export abstract class NekoWebRTC extends EventEmitter<NekoWebRTCEvents> {
private onDisconnected(reason?: Error) {
this.disconnect()
this._log.debug(`disconnected:`, reason)
this._log.debug(`disconnected:`, reason?.message)
this.emit('disconnected', reason)
}
}