sounds, better files

src/model/Audio/TabSourceNode.ts

@@ -0,0 +1,76 @@
+import { SoundGroupNode, SoundGroupNodeOptions } from "./SoundGroupNode";
+
+export interface TabSourceNodeOptions extends SoundGroupNodeOptions {
+}
+
+export class TabSourceNode extends SoundGroupNode<TabSourceNodeOptions> {
+
+  public readonly type = 'tabSource';
+
+  private stream?: MediaStream;
+  private source?: MediaStreamAudioSourceNode;
+
+
+  play() {
+    if (!this.isPlaying) {
+      this.setup()
+      this.ctx.audioContext.resume();
+    }
+  }
+
+  private async setup() {
+    try {
+      this.stream = await navigator.mediaDevices.getDisplayMedia({
+        video: {
+          displaySurface: "browser",
+          frameRate: {ideal: 1}
+        },
+        audio: {
+          suppressLocalAudioPlayback: false,
+          echoCancellation: false,
+          noiseSuppression: false,
+          sampleRate: 44100,
+        },
+        preferCurrentTab: false,
+        selfBrowserSurface: "exclude",
+        systemAudio: "exclude",
+        surfaceSwitching: "include",
+        monitorTypeSurfaces: "include",
+      });
+      console.log(this.stream);
+      this.source = this.ctx.audioContext.createMediaStreamSource(this.stream);
+      this.source.connect(this.gainNode);
+    } catch (err) {
+      console.error(err);
+    }
+  }
+
+  stop() {
+    this.stream?.getTracks().forEach(track => {
+      track.stop();
+    });
+    this.source?.disconnect();
+    this.source = undefined;
+    this.stream = undefined;
+  }
+
+  get isPlaying(): boolean {
+    return !!(this.stream && this.source);
+  }
+
+  togglePlay(): void {
+    if (this.isPlaying) {
+      this.stop();
+    } else {
+      this.play();
+    }
+  }
+
+  serializeOptions() {
+    return {
+      ...super.serializeOptions(),
+      type: this.type,
+    } as const;
+  }
+
+}