[BUG] Internal player stutters

[ikt32]

Describe the bug
When using the internal player, the video feed stutters and tears. The performance seems fine, but every 0.5 seconds or so, the screen just jerks and tears. This happens regardless of the control bar being onscreen or not, or the player being in fullscreen mode or not.

To Reproduce
Steps to reproduce the behavior:

1. Play any video or live stream with the internal player.

Expected behavior
Playback is smooth.

Screenshots

YouTube

Desktop (please complete the following information):

• Windows edition and version: Windows 10 Pro
• System type (32 or 64 bit): 64-bit
• Version (see title bar): 2.3.1 (latest release)

F1TV account

• Subscription type (none, Access, Pro): Pro
• Country: the Netherlands
• Using VPN or proxy?: No

Additional context
Other players seem to come with their own caveats - mostly that the stream freezes when selecting audio for another language.

System is a laptop:

• i5 3210M
• 8GB RAM
• Connected through WiFi, also happens on (1Gbps) ethernet
• Demo video was running on battery, but also happens when plugged in
• Windows has been recently refreshed, but I might attempt a full reinstall due to ethernet issues.

[robvdpol]

That's weird, I haven't seen this before and I can't reproduce it either. Maybe @SuRGeoNix can chime in?

By the way, you can use audio tracks in MPV if you set the Default Audio Language under Settings. Or you can create a layout using the internal player and open it in MPV, it should play with the audio tracks that were selected when you saved the layout.

[SuRGeoNix]

I've never seen this happening and not sure how I can reproduce it so I can fix it. Maybe you can send us a 'dxdiag' output. The only thing comes in mind is a hardware issue (gpu probably). @robvdpol might expose the vsync settings to the user, that might fix it

[ikt32]

Thanks for the default audio suggestion, MPV's good now. (VLC doesn't seem to use the setting).

DxDiag.txt

I also fear it's just specific to my configuration. The laptop is overdue for a fresh complete reinstall anyway.

[itapai]

I am experiencing the same issue.
Running windows on KVM with GPU passthrough. Sound is played via pulseaudio server on the host system.

While this setup could be an issue, I don't think it is because everything else works normally (youtube, games, anything really).
Any logs I can include, beside dxdiag?

DxDiag.txt

[itapai]

Ok, changed windows playback device to monitor, and the sound is fine.
Guess it's an issue with pulseaudio after all.

[itapai]

Another update: crackling present only with using the default player.
No crackling when using mpv or vlc.

[SuRGeoNix]

So the video issue exists because of the audio crackling or is it separate (for the internal player)?

[ikt32]

I had no audio issues, just the stuttering video.

I also couldn't reproduce it on my desktop, so I guess my laptops Windows installation is haunted then. Feel free to close this issue if you have no idea, and also think my laptop is possessed, or something :P

[SuRGeoNix]

Feel free to test the internal player itself if you want https://github.com/SuRGeoNix/Flyleaf/releases/download/v3.1.8/Flyleaf_v3.1.8.7z

I would try to disable hardware/video acceleration and play with vsync (right click -> video). If other players are working fine, my player is possessed and not your laptop I'm afraid :) Probably is the gpu that can't handle the video acceleration which I should be able to predict somehow.

[ikt32]

The internal player seems to be working fine (with/without vsync, with/without HW acceleration) (pasting a random YouTube URL, pasting the link from the RC didn't work).

[ikt32]

I ended up doing a full reinstall, which also solved my problem with the internal player stuttering.

The installation before this originated somewhere from a Windows 7 install that had been upgraded throughout Windows 8, 8.1 and then 10, so I'll just say there might have been something driver-related, or leftovers from the previous versions.

Since the reinstall leaves me unable to reproduce the issue, I'll close this issue. Thanks for the help!

[JJWatMyself]

I've done some testing on this with 11th gen intel, 32GB RAM, SSD on a 4K display. All seems ok, on the internal player, up to about 12 streams and then the stuttering gets progressively worse The stuttering appears to be audio and video and is simultaneous across all windows. CPU and GPU have average load. Not entirely obvious what the cause of the issue is.

EDIT: Realized this is closed and created new bug #455 here:
Here is the layout file I am playing with.

{
  "Instances": [
    {
      "Top": 0.0,
      "Left": 0.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Yuki Tsunoda"
    },
    {
      "Top": 0.0,
      "Left": 640.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Sebastian Vettel"
    },
    {
      "Top": 0.0,
      "Left": 1280.0,
      "Width": 1280.0,
      "Height": 720.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "eng",
      "ChannelName": "DATA"
    },
    {
      "Top": 0.0,
      "Left": 2560.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Valtteri Bottas"
    },
    {
      "Top": 0.0,
      "Left": 3200.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Lando Norris"
    },
    {
      "Top": 360.0,
      "Left": 0.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Pierre Gasly"
    },
    {
      "Top": 360.0,
      "Left": 640.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Lance Stroll"
    },
    {
      "Top": 360.0,
      "Left": 2560.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Guanyu Zhou"
    },
    {
      "Top": 360.0,
      "Left": 3200.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Daniel Ricciardo"
    },
    {
      "Top": 720.0,
      "Left": 0.0,
      "Width": 1280.0,
      "Height": 720.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 1,
      "Topmost": false,
      "IsMuted": false,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Lewis Hamilton"
    },
    {
      "Top": 720.0,
      "Left": 1280.0,
      "Width": 1280.0,
      "Height": 720.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 0,
      "Topmost": false,
      "IsMuted": false,
      "Volume": 50,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "eng",
      "ChannelName": "INTERNATIONAL"
    },
    {
      "Top": 720.0,
      "Left": 2560.0,
      "Width": 1280.0,
      "Height": 720.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 1,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "George Russell"
    },
    {
      "Top": 1440.0,
      "Left": 0.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Max Verstappen"
    },
    {
      "Top": 1440.0,
      "Left": 640.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Charles Leclerc"
    },
    {
      "Top": 1440.0,
      "Left": 1280.0,
      "Width": 1280.0,
      "Height": 720.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "eng",
      "ChannelName": "TRACKER"
    },
    {
      "Top": 1440.0,
      "Left": 2560.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Esteban Ocon"
    },
    {
      "Top": 1440.0,
      "Left": 3200.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Kevin Magnussen"
    },
    {
      "Top": 1800.0,
      "Left": 0.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Sergio Perez"
    },
    {
      "Top": 1800.0,
      "Left": 640.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Carlos Sainz"
    },
    {
      "Top": 1800.0,
      "Left": 2560.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Fernando Alonso"
    },
    {
      "Top": 1800.0,
      "Left": 3200.0,
      "Width": 640.0,
      "Height": 360.0,
      "FullScreen": false,
      "ResizeMode": 0,
      "VideoQuality": 2,
      "Topmost": false,
      "IsMuted": true,
      "Volume": 100,
      "Zoom": 0,
      "AspectRatio": "Keep",
      "AudioDevice": "Default",
      "AudioTrack": "teamradio",
      "ChannelName": "Mick Schumacher"
    }
  ]
}