Play HLS with Exoplayer on Android (#6606)

src/components/ha-camera-stream.ts

@@ -12,6 +12,8 @@ import {
 import { fireEvent } from "../common/dom/fire_event";
 import { computeStateName } from "../common/entity/compute_state_name";
 import { supportsFeature } from "../common/entity/supports-feature";
+import { nextRender } from "../common/util/render-status";
+import { getExternalConfig } from "../external_app/external_config";
 import {
   CAMERA_SUPPORT_STREAM,
   computeMJPEGStreamUrl,
@@ -37,6 +39,8 @@ class HaCameraStream extends LitElement {
 
   private _hlsPolyfillInstance?: Hls;
 
+  private _useExoPlayer = false;
+
   public connectedCallback() {
     super.connectedCallback();
     this._attached = true;
@@ -125,22 +129,33 @@ class HaCameraStream extends LitElement {
     return this.shadowRoot!.querySelector("video")!;
   }
 
+  private async _getUseExoPlayer(): Promise<boolean> {
+    if (!this.hass!.auth.external) {
+      return false;
+    }
+    const externalConfig = await getExternalConfig(this.hass!.auth.external);
+    return externalConfig && externalConfig.hasExoPlayer;
+  }
+
   private async _startHls(): Promise<void> {
     // eslint-disable-next-line
-    const Hls = ((await import(
-      /* webpackChunkName: "hls.js" */ "hls.js"
-    )) as any).default as HLSModule;
-    let hlsSupported = Hls.isSupported();
+    let hls;
     const videoEl = this._videoEl;
+    this._useExoPlayer = await this._getUseExoPlayer();
+    if (!this._useExoPlayer) {
+      hls = ((await import(/* webpackChunkName: "hls.js" */ "hls.js")) as any)
+        .default as HLSModule;
+      let hlsSupported = hls.isSupported();
 
-    if (!hlsSupported) {
-      hlsSupported =
-        videoEl.canPlayType("application/vnd.apple.mpegurl") !== "";
-    }
+      if (!hlsSupported) {
+        hlsSupported =
+          videoEl.canPlayType("application/vnd.apple.mpegurl") !== "";
+      }
 
-    if (!hlsSupported) {
-      this._forceMJPEG = this.stateObj!.entity_id;
-      return;
+      if (!hlsSupported) {
+        this._forceMJPEG = this.stateObj!.entity_id;
+        return;
+      }
     }
 
     try {
@@ -149,8 +164,10 @@ class HaCameraStream extends LitElement {
         this.stateObj!.entity_id
       );
 
-      if (Hls.isSupported()) {
-        this._renderHLSPolyfill(videoEl, Hls, url);
+      if (this._useExoPlayer) {
+        this._renderHLSExoPlayer(url);
+      } else if (hls.isSupported()) {
+        this._renderHLSPolyfill(videoEl, hls, url);
       } else {
         this._renderHLSNative(videoEl, url);
       }
@@ -163,6 +180,29 @@ class HaCameraStream extends LitElement {
     }
   }
 
+  private async _renderHLSExoPlayer(url: string) {
+    window.addEventListener("resize", this._resizeExoPlayer);
+    this.updateComplete.then(() => nextRender()).then(this._resizeExoPlayer);
+    this._videoEl.style.visibility = "hidden";
+    await this.hass!.auth.external!.sendMessage({
+      type: "exoplayer/play_hls",
+      payload: new URL(url, window.location.href).toString(),
+    });
+  }
+
+  private _resizeExoPlayer = () => {
+    const rect = this._videoEl.getBoundingClientRect();
+    this.hass!.auth.external!.fireMessage({
+      type: "exoplayer/resize",
+      payload: {
+        left: rect.left,
+        top: rect.top,
+        right: rect.right,
+        bottom: rect.bottom,
+      },
+    });
+  };
+
   private async _renderHLSNative(videoEl: HTMLVideoElement, url: string) {
     videoEl.src = url;
     await new Promise((resolve) =>
@@ -194,11 +234,15 @@ class HaCameraStream extends LitElement {
     fireEvent(this, "iron-resize");
   }
 
-  private _destroyPolyfill(): void {
+  private _destroyPolyfill() {
     if (this._hlsPolyfillInstance) {
       this._hlsPolyfillInstance.destroy();
       this._hlsPolyfillInstance = undefined;
     }
+    if (this._useExoPlayer) {
+      window.removeEventListener("resize", this._resizeExoPlayer);
+      this.hass!.auth.external!.fireMessage({ type: "exoplayer/stop" });
+    }
   }
 
   static get styles(): CSSResult {

src/external_app/external_config.ts

@@ -3,6 +3,7 @@ import { ExternalMessaging } from "./external_messaging";
 export interface ExternalConfig {
   hasSettingsScreen: boolean;
   canWriteTag: boolean;
+  hasExoPlayer: boolean;
 }
 
 export const getExternalConfig = (