[Enhancement] Set DASH and HLS by default

[unixfox]

Since YouTube has removed hd720: #4759, the only default resolution available is 480p aka medium.

My feeling is that YouTube is soon going to shutdown the last combined video and sound medium resolution. And users will be left with no video stream to play unless they switch to DASH.

This is why I would like to propose to seriously switch to DASH by default.

Ideally, we should do it when:

• HLS has been implemented by @syeopite: Add option for HLS quality in user preferences #4118. allowing iOS clients to not use the proxy feature by default
• We have switched to video.js 8 which handle way better things like dropout or glitches: Upgrade to video.js 8 #4439
• piped-proxy has been the recommended solution for proxying the video stream on public instances: Support Invidious endpoints TeamPiped/piped-proxy#111
  otherwise most public instances will collapse under the load.

This will solve the long time issue of people asking why 1080p is not available and things like this. Non JS users will still have medium quality working until it's no longer available.

For the public instances, we could still allow some that do not offer DASH but listed in a separate section and not listed on https://api.invidious.io. We don't really want to confuse the users with reduced features.

[syeopite]

The current HLS implementation from #4118 actually requires proxying.

It has been awhile since I last worked on it but if I recall correctly there was some issues with getting HLS to work without proxying.

[charonfaustinus]

medium is actually 360p with very low bitrate. Unwatchable when there's a lot of movement in video.

Also, I've noticed that when I use LibRedirect add-on to redirect all the embed youtube iframes to invidious. The HLS user option doesn't apply, and it only loads medium 360p quality. It'll be nice if we have HLS option set by default.

It has been awhile since I last worked on it but if I recall correctly there was some issues with getting HLS to work without proxying.

Maybe *.googlevideo.com doesn't allow CORS?

[syeopite]

The HLS implementation has not been merged yet

[charonfaustinus]

And there is no way to set back medium

Set by default doesn't mean it'll be removed from the setting. Out of the box, nobody wants to watch 360p youtube crap encoded file. If somehow you can't use hls/dash, there should be a setting to fall back to medium.

This topic is a discussion about setting hls/dash by default. NOT removing it entirely.

[unixfox]

@artshevtsov please open a separate issue you are offtopic. This is about setting DASH by default in invidious.

[ashley0143]

wasnt HLS disabled on firefox mobile?

https://bugzilla.mozilla.org/show_bug.cgi?id=1911651