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Rudloff / viatcheslav

Open-source client for Molotov.tv
GNU General Public License v3.0
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Playback speed increased between two sessions #4

Closed Kabouik closed 6 years ago

Kabouik commented 6 years ago

Viatcheslav was working correctly earlier today, then I closed it and rebooted my computer, and now Viatcheslav is playing at like 200% speed with no sound (even for Live TV, it just waits for the stream for a few seconds and then plays the buffer at highspeed). Molotov still plays the same channels correctly.

I deleted ~/.cache, updated Viatcheslav with git clone and ran npm run linux-setup again, but no success.

I have had this issue once with Molotov, and that was one reason why I wanted to use Viatcheslav instead, but I never identified the cause of the issue (and it disappeared somehow at a later point). I am sure I did something wrong, but can't pinpoint what.

What is the player used by Viatcheslav under the hood? I'm running Linux and have mpv and gnome-mpv installed, no other players, but both play at the correct speed. I tried changing their playback speed with [ and ], the default shortcuts, but it had no effect on Viatcheslav.

Kabouik commented 6 years ago

And it's back to normal now, I don't know what I have changed, weird.

Rudloff commented 6 years ago

Viatcheslav is just a wrapper and uses the same HTML5 player as molotov.tv so this is probably a Molotov bug.

Kabouik commented 6 years ago

But then I'm not sure how to interpret the fact that the Molotov application was working at correct speed when Viatcheslav was not. And a few months ago it was the opposite. Is there any way the wrappers can influence playback speed?

Rudloff commented 6 years ago

Playback speed can be set in JavaScript, but don't know if you triggered a bug in Molotov that incorrectly sets the speed or if you found some hidden keyboard shortcut to change the speed.

New time this happens, you can try to open the developer tools (View > Toggle Developer Tools) and type this in the JS console:

document.querySelector('video').playbackRate = 1;
Kabouik commented 6 years ago

I've tried every key because I thought about a hidden keyboard shortcut too, but couldn't reproduce or revert the playback speed change.

I wonder if it was not related to a script I'm using to transfer the audio output to a third monitor (TV) though: https://hastebin.com/xowohifari Indeed, after I opened this issue, hitting Shift+F10 (my keyboard combination to execute this script) immediately caused the same issue in the Molotov application, but hitting it again had no effect. This is very weird though, as I use this script several times a day, often with Viatcheslav (or Molotov), and usually have no issue. I wonder if it can conflict with something else I still haven't identified and cause the issue just when all conditions are satisfied.

I'll make sure I check the JS console when the bug appears again and report the output here, thanks.