I've been tracing through an issue where a 50fps x265 TS file, encoded using ffmpeg was playing back very jerkily on the Windows nightly builds since 5th April. I haven't tried other platforms but I would suspect it would be the same.
It is caused by this commit
https://github.com/videolan/vlc/commit/ ... 33ee78660c
If these changes are reverted, my problem goes away.
Interestingly, files encoded using NVENC HEVC don't have this issue.
x265 encoded TS files jerky in Windows, and here is the reason...
Re: x265 encoded TS files jerky in Windows, and here is the reason...
Here are the test files, should a developer want to look at it. All three were created by ffmpeg from the same initial DS capture.
File that produces jerky output (x265 encode, mpeg-ts):
https://www.dropbox.com/s/lp351vfjiksis ... 65.ts?dl=0
File that is ok (x265 encode, mp4)
https://www.dropbox.com/s/5cpjnbe7a3t62 ... 5.mp4?dl=0
File that is ok (NVENC encode, mpeg-t)
https://www.dropbox.com/s/mnfw8ngnj7sv0 ... nc.ts?dl=0
So it's the specific combination of an x265 encode with the mpeg-ts container format that is the problem.
As I say, revert the above check-in and the problem goes away.
File that produces jerky output (x265 encode, mpeg-ts):
https://www.dropbox.com/s/lp351vfjiksis ... 65.ts?dl=0
File that is ok (x265 encode, mp4)
https://www.dropbox.com/s/5cpjnbe7a3t62 ... 5.mp4?dl=0
File that is ok (NVENC encode, mpeg-t)
https://www.dropbox.com/s/mnfw8ngnj7sv0 ... nc.ts?dl=0
So it's the specific combination of an x265 encode with the mpeg-ts container format that is the problem.
As I say, revert the above check-in and the problem goes away.
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Jean-Baptiste Kempf
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Re: x265 encoded TS files jerky in Windows, and here is the reason...
Can you share logs, please?
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.
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InTheWings
- Developer
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- VLC version: crashing
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Re: x265 encoded TS files jerky in Windows, and here is the reason...
double timestamp usage.
should have been fixed.
should have been fixed.
If you want your problem to be solved :* First read troubleshooting guide VSG:Main
* Always provide verbose LOGS ! (command line or from gui)
* Always check your issue against a developer build from Nightly Build of VLC
* Tell us when your problem is solved !
-
Jean-Baptiste Kempf
- Site Administrator
- Posts: 37523
- Joined: 22 Jul 2005 15:29
- VLC version: 4.0.0-git
- Operating System: Linux, Windows, Mac
- Location: Cone, France
- Contact:
Re: x265 encoded TS files jerky in Windows, and here is the reason...
Jean-Baptiste Kempf
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.
http://www.jbkempf.com/ - http://www.jbkempf.com/blog/category/Videolan
VLC media player developer, VideoLAN President and Sites administrator
If you want an answer to your question, just be specific and precise. Don't use Private Messages.
Re: x265 encoded TS files jerky in Windows, and here is the reason...
Great news, I will test that out and let you know if I still have some problems.
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