Feature Request: Add a start/stop recording button

[victorges]

Moved from livepeer#3 by @chrishobcroft

Current experience

Currently, the UI for justcast.it is very minimalist and simple:

• Monitor of the moving pictures captured by the camera
• A big circular button for start streaming / stop streaming (currently coloured red)
• A rectangular button to switch to sharing a screen instead of camera

This is a great basic set of features. Except something important is missing.

Proposed enhancement

This issue proposes to add the following option for the UI:

• A big circular button for start recording / stop recording (colour it red, like a dead stream)

This would allow a Publisher to record their livestream content locally, and may require a user provide the browser with permission to write to the file system.

Also, propose to re-colour the "big circular button for start streaming / stop streaming" to green (like an alive stream). I would use #00eb87 (one of Livepeer's original "official" colours).

Rationale

I accept that in a world where users expect their livestream content to be stored "in the cloud", that this feature request may appear counter intuitive.

However, in cases where the publisher knows that their content is not automatically being stored remotely, this feature would provide them with a way to save the content themselves.

This would effectively allow them to retain full almost-uncompromised control over their media rights, allowing them to release the content on their own terms. This would also represent a substantial improvement compared to current situations where big social media tech platforms end up being the only entities with full control over a creator's content.

I acknowledge that if someone was watching the stream, and recording the content, then they would be able to also save the content themselves... e.g. like a PVR. But this currently requires substantially more technical capabilities to perform.