feat: Add basic support for TiVo OS (#9758)

I got in touch with some people at TiVo OS and they're willing to help
out with proper device support.

This is a draft as we'll have to figure out the details (eg; max
resolution probing, HDR capabilities) along the way.

Caveats

- Earlier versions of BMW run on Linux, with user agent "Mozilla/5.0
(X11; Linux aarch64) AppleWebKit/573.36 (KHTML, like Gecko)
Chrome/126.1.0.0.0 Safari/537.36 BMW/156", which is TiVo under the hood.
Current implementation wouldn't match this but there's a few config
variables that need to be adjusted (eg; CrossBoundaryStrategy RESET).
- I have yet to check if newer BMW's (run on Android) contain TiVoOS in
their user agent.
- TiVo is a new player in the TV market, they ship their OS with various
vendors. I shall yet have to receive proper info of what runs where.

---------

Co-authored-by: Álvaro Velad Galván <ladvan91@hotmail.com>

README.md

@@ -56,6 +56,7 @@ for the up-to-date list of maintained branches of Shaka Player.
 |Playstation 4⁷| -        | -       | -       | -       | -        | -         | -          | -      |**Y**|
 |Playstation 5⁷| -        | -       | -       | -       | -        | -         | -          | -      |**Y**|
 |Titan OS⁷     | -        | -       | -       | -       | -        | -         | -          | -      |**Y**|
+|TiVo OS⁷      | -        | -       | -       | -       | -        | -         | -          | -      |**Y**|
 
 NOTES:
  - ²: The latest stable Chromecast firmware is tested. Both sender and receiver
@@ -254,6 +255,7 @@ Note: This module is experimental and is only included in the experimental build
 |Playstation 5⁷| -        |untested⁷| -       | -       |untested⁷ |
 |Huawei⁷       | -        | -       | -       |untested⁷|untested⁷ |
 |Titan OS⁷     |untested⁷ |untested⁷| -       | -       |untested⁷ |
+|TiVo OS⁷      |untested⁷ |untested⁷| -       | -       |untested⁷ |
 
 Other DRM systems should work out of the box if they are interoperable and
 compliant to the EME spec.

build/types/devices

@@ -4,6 +4,7 @@
 +../../lib/device/hisense.js
 +../../lib/device/playstation.js
 +../../lib/device/titan_os.js
++../../lib/device/tivo_os.js
 +../../lib/device/tizen.js
 +../../lib/device/vizio.js
 +../../lib/device/webkit_stb.js

lib/device/tivo_os.js

@@ -0,0 +1,66 @@
+/*! @license
+ * Shaka Player
+ * Copyright 2026 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+goog.provide('shaka.device.TiVoOS');
+
+goog.require('shaka.device.AbstractDevice');
+goog.require('shaka.device.DeviceFactory');
+goog.require('shaka.device.IDevice');
+
+
+/**
+ * @final
+ */
+shaka.device.TiVoOS = class extends shaka.device.AbstractDevice {
+  /**
+   * @override
+   */
+  getVersion() {
+    return null;
+  }
+
+  /**
+   * @override
+   */
+  getDeviceName() {
+    return 'TiVoOS';
+  }
+
+  /**
+   * @override
+   */
+  getDeviceType() {
+    return shaka.device.IDevice.DeviceType.TV;
+  }
+
+  /**
+   * @override
+   */
+  getBrowserEngine() {
+    return shaka.device.IDevice.BrowserEngine.CHROMIUM;
+  }
+
+  /**
+   * @override
+   */
+  supportsSmoothCodecSwitching(keySystem) {
+    return false;
+  }
+
+  /**
+   * Check if the current platform is TiVoOS.
+   * @return {boolean}
+   * @private
+   */
+  static isTiVoOS_() {
+    return navigator.userAgent.includes('TiVoOS');
+  }
+};
+
+if (shaka.device.TiVoOS.isTiVoOS_()) {
+  shaka.device.DeviceFactory.registerDeviceFactory(
+      () => new shaka.device.TiVoOS());
+}