Improve In-App Media Player for audio files to look and behave like Telegram

[hannes-d3v]

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Feature request

Which Nextcloud Version are you currently using:
Nextcloud Hub 9 (Talk Android App)

Is your feature request related to a problem? Please describe.
I'm always frustrated when standard audio files (like .mp3 or .wav) sent in a chat are displayed as clunky generic file attachments. This takes up a lot of space in the chat history and lacks a proper, compact in-app media player integration for regular audio files.

Describe the solution you'd like
I would like regular audio files to be displayed in a compact chat bubble similar to voice messages. It should feature a clean, round Play/Pause button, display the actual filename or ID3 metadata (Title/Artist), and show a simple, linear progression bar (SeekBar) instead of the voice message waveform if no amplitude data is present.

Furthermore, it should behave exactly like Telegram's audio player:

1. It needs to support background playback so music/audio keeps playing when the app is closed, showing a persistent media control notification at the top of the Android status bar.
2. It should automatically queue and skip to the next available audio file in the chat history once the current track finishes.

Many users are currently looking for secure, self-hosted alternatives to Telegram, and having a polished, fully-featured media player is a key feature to convincing them to switch to Nextcloud Talk.

Describe alternatives you've considered
Leaving it as a generic file download, which forces users to use external media players or clutters the chat view.

Additional context
This would drastically improve the user experience when sharing music, podcasts, or longer audio recordings within Talk, bringing the chat UI closer to modern messengers like Telegram or Signal.

[mahibi]

Thank you for reporting this @hminden08-netizen
We will pick this up whenever time allows

[mahibi]

I'm backtracking a little, see nextcloud/talk-ios#2595 (comment)
This should not be implemented unless the same behavior for all platforms is decided.
Otherwise #6396 might be usable for it (not yet reviewed).

[hannes-d3v]

Thank you for the update, @mahibi. I completely understand that keeping feature parity across Android and iOS is very important for the Nextcloud Hub ecosystem.

Since my clarified comment on the iOS ticket highlighted that this is mostly about a general UI/UX improvement (replacing the full-screen media preview with a simple, compact inline audio bubble right inside the chat), could we keep this request open for architectural discussion?

It seems both platforms would benefit greatly from a unified, compact inline player for shared audio clips and voice messages, rather than completely out-of-scope standalone media servers. I would love to hear if the team sees a path forward for a synchronized feature implementation on both platforms in the future.