Send audio metadata (chapter title & artwork) to Chromecast displays

Google Gemini suggests it would be possible:

Leveraging Chromecast's Built-in Capabilities

* Media Information Protocol (MIP):

* Chromecast supports MIP, a protocol for streaming audio and video content.

* Apps can send metadata, including album art, along with the audio stream using MIP.

* Chromecast's built-in media player can then display this information on the connected display.

* Cast Framework:

* The Cast Framework, provided by Google, simplifies the process of sending media to Chromecast devices.

* Apps can use the framework to send media information and control playback.

* This framework likely handles the underlying communication and metadata transmission.

By leveraging these built-in features, apps can efficiently send song metadata to Chromecast devices without the need for a custom receiver app. This approach ensures compatibility and a consistent user experience across different Chromecast devices.