Video rendering problem
Categories
(Core :: Audio/Video, defect, P3)
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(Reporter: ngfield, Unassigned)
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(1 file)
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User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:95.0) Gecko/20100101 Firefox/95.0
Steps to reproduce:
Stream Video playback
Actual results:
The image is jerky and slightly blurry in motion.
Expected results:
Expected result is that image movement should be smooth.
Firefox has long had problems with rendering images on the move. Compared to other browsers, the image is jerky and slightly blurry in motion.
This is especially noticeable when running subtitles, watching hockey, or any scene where there is more sustained motion.
The problem is probably at a level somewhere around HW-acceleration and vertical sync.
I want to report this to the developers and ask for improvements - the video is not easy to watch via FF.
This problem with FF applies to both Linux and Windows - the correct GK drivers are of course.
I'm posting a link to a test video in Full HD, using the 15:17-15:31 minute segment. For example in Edge or Chrome it runs fine - on FF the movement is noticeably choppy and jerky.
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Comment 1•3 years ago
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Can you please post your about:support text? Also, uploading a 'Media' Firefox profile when experiencing the problem would help greatly. Thanks!
This problem has been going on since I've been using FF, and that's since 2013. It's probably a kernel issue and the design of how it works with image management or how it interacts with the system components that take care of rendering - every FF does it with every GPU and every driver.
Play that section of video in Edge and in FF and you'll see the difference.
Unfortunately I don't know exactly how to do what you're asking me to do.
Text about:support:
(In reply to Daniel from comment #3)
This problem has been going on since I've been using FF, and that's since 2013. It's probably a kernel issue and the design of how it works with image management or how it interacts with the system components that take care of rendering - every FF does it with every GPU and every driver.
Play that section of video in Edge and in FF and you'll see the difference.Unfortunately I don't know exactly how to do what you're asking me to do.
Text about:support in attachment
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Comment 5•3 years ago
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(In reply to Daniel from comment #3)
Unfortunately I don't know exactly how to do what you're asking me to do.
Go to https://profiler.firefox.com/, and the steps should be explained. If there's a part where you get stuck, please let us know and we can try to provide more step-by-step support.
I absolutely don't know what to do with it and somehow it doesn't really work. Anyway, if anyone plays the motion video in a browser based on Chrome and Firefox, they can clearly see the jerky motion.
So either someone wants to deal with this and wants to improve Firefox or they're going to make up a bully for the user who reported it in good faith.
I'm running out of patience with Firefox - at the moment it's the most RAM guzzling of them all, and the video is not good to watch. Also, there are sound artifacts in Ubuntu and offshoots on the AMD Ryzen platform when combining certain pages. It's getting worse - that's why it's also declining in popularity among users.
I would have done the profiler meter too, but I couldn't find anywhere how to save the result, so I can't add it here.
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