App can't continue YouTube video that was paused some hours ago

[JCU0]

Checklist

• I am using the latest version - 0.20.10
• I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• This issue contains only one bug. I will open one issue for every bug report I want to file.

Steps to reproduce the bug

1. Start a video to play
2. Pause a video.
3. Lock your device.
4. Sleep and relax for some hours
5. Unlock your device
6. Try to resume a video (problem is here)
7. Try to play another video (no problem)
8. Try to go back to previously paused video via History, Playlists tab, etc (problem is here again)

Actual behaviour

A video is starting to play for up to a minute (pre-loaded part), then it is freezing in an infinite load loop. When you try to switch to another video and return to that one, it's still not playable. You need to force close and reload the app to be able to continue with that video.

Expected behavior

A video should continue to play smoothly until end.

[jonnyb49]

This behavior happens even if paused in background mode. However this is not a new problem and has been observed in several last releases. Sometimes if there is enough of data queued up it could play for couple of seconds even a minute after this long pause , but as soon as it should fetch new data the play stops and stays like that forever.

It appears as if there was some kind of timer that overflows in this long pause and then it cannot start where it left off. Or the timestamp of the last queued data does not match current time thus unable to fetch new data from the source.

One workaround found is to stop the app, clear the storage cache in app settings, restart the app and via history restart the playback. However there is one big drawback to this action. It seems that the comments disappear completely after clearing the cache for all videos played afterwards. They sometimes resurface again after couple of day, but have not figured out what triggers this condition. But this is probably another bug issue that needs to be reported separately.

[XiangRongLin]

You can also just change the video quality to fix there current instance of the problem

[absurdlylongusername]

You can also just change the video quality to fix there current instance of the problem

And how to fix in background mode without having to force close the app and lose your current queue?

[FlareHeart]

I am still having this issue in 21.1. Now it won't even play buffered video and it seems newpipe thinks the video has ended since the icon changes to the "replay" arrow rather than the play triangle. Resuming is not possible and requires restarting the video.
This also occurs very quickly. After pausing and locking the device it only needs to be locked for a few minutes before the video is unable to be resumed.

[Ojd2000]

I've been experiencing a similar issue for some releases (I can't tell for sure what ones). This may be related, so I'm reporting it here.
Currently I am using version 0.21.13.
Almost every time, when I pause a video, even for just a second, it displays the play triangle and I cannot resume it. Closing the video and reopening it fixes the issue (no need to restart the app), but it often happens that it is restarted from the beginning, instead of the last position (although the red indicator in the thumbnail showed it correctly until it was restarted).
I can also confirm that this also happens in background mode.
I could not find any indication on the conditions under which this issue presents, it seems random to me.

[Lomanic]

Here are some logs for this issue. I started this video yesterday, paused it, set the phone under Airplane mode for the night, and the next day exited Airplane mode and tried continue watching the same video which triggered a An error occurred, see notification toast where I could get the following logs

Exception

• User Action: play stream
• Request: Player error[type=0] occurred while playing https://www.youtube.com/watch?v=Wp0sXD3vy1E
• Content Country: US
• Content Language: en
• App Language: en_CA
• Service: YouTube
• Version: 0.22.1
• OS: Linux Android 7.1.2 - 25

Crash log

com.google.android.exoplayer2.ExoPlaybackException: Source error
	at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:580)
	at android.os.Handler.dispatchMessage(Handler.java:98)
	at android.os.Looper.loop(Looper.java:154)
	at android.os.HandlerThread.run(HandlerThread.java:61)
Caused by: com.google.android.exoplayer2.ParserException: Invalid NAL length
	at com.google.android.exoplayer2.extractor.mp4.Mp4Extractor.readSample(Mp4Extractor.java:605)
	at com.google.android.exoplayer2.extractor.mp4.Mp4Extractor.read(Mp4Extractor.java:249)
	at com.google.android.exoplayer2.source.BundledExtractorsAdapter.read(BundledExtractorsAdapter.java:127)
	at com.google.android.exoplayer2.source.ProgressiveMediaPeriod$ExtractingLoadable.load(ProgressiveMediaPeriod.java:1049)
	at com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:417)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
	at java.lang.Thread.run(Thread.java:761)

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[wombatch]

I too have this problem. I am now running 22.1,with previous releases changing the video resolution would allow the video to continue playing now with 22.1 this workaround does not help un the worst case I have had ( https://www.youtube.com/watch?v=rEOQMlICtpU )
I am not sure what sort of video stream is involved but for this case even clearing cache or restarting android did not make a difference.
Eventually I managed to get out of it by playing another video some made a difference others did not. The "history" technique in the post above also seemed to work

[cyphar]

I run into this issue very often (see #8455 and the screen recording). Changing resolutions only sometimes helps solve the issue and once you close the video there's a NewPipe crash each time you try to start the video. Clearing the cache is the only workable solution at the moment.

I don't know how NewPipe works internally but it seems like NewPipe doesn't seem to do a "from scratch" refresh of a video when it hits an error like this, and it seems like doing a complete refresh and re-fetch of the video if this error is hit for the first time would solve these issues?