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authormetamuffin <metamuffin@disroot.org>2022-09-09 13:03:48 +0200
committermetamuffin <metamuffin@disroot.org>2022-09-09 13:03:48 +0200
commit0d4102fc2decaf2e1136bc55a261a9e85488791b (patch)
tree4c0eaef68c2785b0fca903f78e89bcb643642d0a /client-web/source/user/local.ts
parente9aa676207be6e1b11863778deddba59109d88fb (diff)
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+/// <reference lib="dom" />
+
+import { log } from "../logger.ts";
+import { PREFS } from "../preferences.ts";
+import { RemoteUser } from "./remote.ts";
+import { get_rnnoise_node } from "../rnnoise.ts";
+import { Room } from "../room.ts";
+import { TrackHandle } from "../track_handle.ts";
+import { User } from "./mod.ts";
+
+export class LocalUser extends User {
+ mic_gain?: GainNode
+ default_gain: number = PREFS.microphone_gain
+
+ constructor(room: Room, id: number) {
+ super(room, id)
+ this.el.classList.add("local")
+ this.local = true
+ this.create_controls()
+ this.add_initial_tracks()
+ log("usermodel", `added local user: ${this.display_name}`)
+ }
+
+ async add_initial_tracks() {
+ if (PREFS.microphone_enabled) this.publish_track(await this.create_mic_track())
+ if (PREFS.camera_enabled) this.publish_track(await this.create_camera_track())
+ if (PREFS.screencast_enabled) this.publish_track(await this.create_screencast_track())
+ }
+
+ publish_track(t: TrackHandle) {
+ this.room.remote_users.forEach(u => u.peer.addTrack(t.track))
+ this.add_track(t)
+ t.addEventListener("ended", () => {
+ this.room.remote_users.forEach(u => {
+ u.peer.getSenders().forEach(s => {
+ if (s.track == t.track) u.peer.removeTrack(s)
+ })
+ })
+ })
+ }
+
+ add_initial_to_remote(u: RemoteUser) {
+ this.tracks.forEach(t => u.peer.addTrack(t.track))
+ }
+
+ create_controls() {
+ const mic_toggle = document.createElement("input")
+ const camera_toggle = document.createElement("input")
+ const screen_toggle = document.createElement("input")
+ mic_toggle.type = camera_toggle.type = screen_toggle.type = "button"
+ mic_toggle.value = "Microphone"
+ camera_toggle.value = "Camera"
+ screen_toggle.value = "Screencast"
+
+ const create = async (_e: HTMLElement, tp: Promise<TrackHandle>) => {
+ log("media", "awaiting track")
+ const t = await tp
+ log("media", "got track")
+ this.publish_track(t)
+ }
+
+ mic_toggle.addEventListener("click", () => create(mic_toggle, this.create_mic_track()))
+ camera_toggle.addEventListener("click", () => create(camera_toggle, this.create_camera_track()))
+ screen_toggle.addEventListener("click", () => create(screen_toggle, this.create_screencast_track()))
+
+ const el = document.createElement("div")
+ el.classList.add("local-controls")
+ el.append(mic_toggle, camera_toggle, screen_toggle)
+ document.body.append(el)
+ }
+
+ async create_camera_track() {
+ log("media", "requesting user media (camera)")
+ const user_media = await window.navigator.mediaDevices.getUserMedia({
+ video: { facingMode: { ideal: PREFS.camera_facing_mode } }
+ })
+ return new TrackHandle(user_media.getVideoTracks()[0], true)
+ }
+
+ async create_screencast_track() {
+ log("media", "requesting user media (screen)")
+ const user_media = await window.navigator.mediaDevices.getDisplayMedia({ video: true })
+ return new TrackHandle(user_media.getVideoTracks()[0], true)
+ }
+
+ async create_mic_track() {
+ log("media", "requesting user media (audio)")
+ const audio_contraints = PREFS.rnnoise ? {
+ channelCount: { ideal: 1 },
+ noiseSuppression: { ideal: false },
+ echoCancellation: { ideal: true },
+ autoGainControl: { ideal: true },
+ } : {
+ channelCount: { ideal: 1 },
+ noiseSuppression: { ideal: false },
+ echoCancellation: { ideal: true },
+ autoGainControl: { ideal: true },
+ };
+
+ const user_media = await window.navigator.mediaDevices.getUserMedia({ audio: audio_contraints })
+ const context = new AudioContext()
+ const source = context.createMediaStreamSource(user_media)
+ const destination = context.createMediaStreamDestination()
+ const gain = context.createGain()
+ gain.gain.value = this.default_gain
+ this.mic_gain = gain
+
+ let rnnoise: RNNoiseNode;
+ if (PREFS.rnnoise) {
+ rnnoise = await get_rnnoise_node(context)
+ source.connect(rnnoise)
+ rnnoise.connect(gain)
+ } else {
+ source.connect(gain)
+ }
+ gain.connect(destination)
+
+ const t = new TrackHandle(destination.stream.getAudioTracks()[0], true)
+
+ t.addEventListener("ended", () => {
+ user_media.getTracks().forEach(t => t.stop())
+ source.disconnect()
+ if (rnnoise) rnnoise.disconnect()
+ gain.disconnect()
+ destination.disconnect()
+ this.mic_gain = undefined
+ })
+
+ return t
+ }
+}