Add OAuth support to get subscriptions (YouTube)

[ghost]

Checklist

• I made sure that there are no existing issues - open or closed - which I could contribute my information to.
• I'm aware that this is a request for NewPipe itself and that requests for adding a new service need to be made at NewPipeExtractor.
• I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

The app can now use OAuth to import subscriptions. Essentially, when the app detects google play services, it will add an oauth button. When clicked, it will ask for subscriptions yada yada, and it will begin to import them. You can configure the app on start to import subscriptions, and there is a button to do it manually. Here is an ascii flowchart

(Start)-><Check if Google Play Services is installed>-Yes->[Add Menu Button to add OAuth]->(End)
(When OAuth button clicked)->[Request OAuth permissions: Subscriptions]->[Add Subscriptions just like Google Takeout]->(End)
(When OAuth set up was done and the app starts)->[Start importing subscriptions]->(End)

You can check if an api key is null in the code and if it is, just hide the not functional button.

Why do you want this feature?

It is a pain to manually go to Google Takeout, deselect all, select YouTube, only select subscriptions, and wait 30 seconds to get the download, and import it into NewPipe. On a mobile device which makes it 100x harder.

Additional information

No response

[litetex]

Sidenote:

Essentially, when the app detects google play services

As NewPipe is designed not to work with proprietary Google APIs like Google Play Services I don't think that this will/should be implemented.

[SchlSE]

Couldn't microG be used as an compromise?

[litetex]

Couldn't microG be used as an compromise?

Not every device is equipped with microG.
Also NewPipe is designed to run standalone without any additional software requirement (besides a working Android version).

Also regarding the "shitstorm" I got when trying to increase the minSdk (#7602) I think the addition of requiring microG would cause an even bigger one.

[opusforlife2]

It is a pain to manually go to Google Takeout, deselect all, select YouTube, only select subscriptions, and wait 30 seconds to get the download, and import it into NewPipe. On a mobile device which makes it 100x harder.

Well yeah, but you only have to do it once.

[anoraktrend]

Seeing as this would also be a way to get around the new potential sign-in requirements, would this possible addition be considered more seriously?

[SpectralPixel]

I feel like not having a way to easily import your subscriptions is a serious UX issue, regardless of whether "you only have to do it once".

I know that this app is mainly geared towards techies anyways, but I feel like NewPipe could appeal to a much larger audience if the setup process was more streamlined.

Therefore, I believe that this suggestion is quite the opposite of "niche".