[HELP NEEDED] Major planned/missing features

[opusforlife2]

This is a list of some major features currently missing from NewPipe for developers (both team members and current/future contributors) to go through when they are thinking of working on NewPipe:

• [ ] Refactor of the massive Player code is sorely needed. Any changes there tend to cause new bugs: #8616
  • [x] #8011
  • [x] #8170
  • [x] #8678
  • [ ] The code related to how the player is started or changed: #7673
  • [ ] Write some documentation that explains how the main components of the player work (along with their layers of abstraction)
  • [ ] ...
• [ ] DASH and HLS playback
  • [x] Initial support added 🎉
  • [x] TeamNewPipe/NewPipeExtractor#810
  • [x] #8153
  • [ ] Improvements to the current model used in the extractor
  • [ ] TeamNewPipe/NewPipeExtractor#858
  • [ ] TeamNewPipe/NewPipeExtractor#862)
• [x] Channel tabs: #2414
  • [x] TeamNewPipe/NewPipeExtractor#1082
  • [x] #9182
• [x] YouTube mixes and YouTube Music mixes: TeamNewPipe/NewPipeExtractor#788
• [ ] Search filters: #2251
  • [ ] TeamNewPipe/NewPipeExtractor#904
  • [ ] #8837
• [x] Seamless transition between background and video players: #7349
• [ ] Allow use of Android Picture-in-Picture API instead of a custom popup player (with Draw over other apps permission) (only for Android 8.0 and higher): #8750
• [ ] Custom channel group feeds as main page tabs: #3319
• [ ] Proper storage access on Android TV : #8359 (Rejected)
• [ ] Comment replies: #2277
  • [ ] #10018
  • [x] TeamNewPipe/NewPipeExtractor#794
  • [x] TeamNewPipe/NewPipeExtractor#941
• [x] Multiple audio tracks support: #5854
  • [x] #9937
  • [x] TeamNewPipe/NewPipeExtractor#973
  • [x] TeamNewPipe/NewPipeExtractor#1026
  • [x] TeamNewPipe/NewPipeExtractor#1041

[XiangRongLin]

Whats missing for me would be automated tests. Either jvm unit tests or android instrumented tests would allow to develop those tested sections with more confidence and less manual testing.

I personally have experience with autoamted testing in backend applications and roughly know how to make structure an application in order to be testable. As for Android, i have no clue.
I did some preparation by getting the instrumented test to run in CI #5360 and have an open PR #5531 as a first instrumented test.

[litetex]

Helping to review existing pull requests would also be appreciated 😄