Bug 452953

Summary: Proxy video playback is Choppy for 15 frames
Product: [Applications] kdenlive Reporter: Vaibhav Dhotre <vrdhotre>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: RESOLVED WORKSFORME    
Severity: critical CC: berndmj, fritzibaby, vrdhotre
Priority: NOR Flags: fritzibaby: timeline_corruption+
Version First Reported In: 21.12.2   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Vaibhav Dhotre 2022-04-24 18:13:53 UTC 
Proxy video playback started shuttering for 15 frames when I hit play button in the project sequence preview window.

It shows noticeable difference for playback when I started using proxy files, but still 15 frames are shuttering when I click the play button.

***
Note: No problem with other Non-Linear Video Editing software like Adobe's Premiere Pro.
***

OBSERVED RESULT
I was having doubt that this may be happening due to my Intel i3 system.
But when checked with other video editing software, I found no issues with choppiness in the playback.

EXPECTED RESULT
Video should be played smooth while playback using proxy files.

HARDWARE INFO
Processor : Intel Core i3-8100 (Desktop) CPU
Clock Speed : 3.6 GHz (4 CPUs)
RAM : 8192 GB
Paging File : System Managed
C Drive Remaining Space : 140 GB (SSD Drive)

SOFTWARE/OS VERSIONS
Windows: Microsoft Windows 11 Pro (64-bit)
Windows Build Version : 10.0.22593 Build 22593
Kdenlive Version : 21.12.2

ADDITIONAL INFO : I can provide additional information when requested.
Comment 1 emohr 2022-04-27 15:54:37 UTC 
With the upcoming version 22.04 playback is optimized. Please test when version 22.04 is available.
Comment 2 Vaibhav Dhotre 2022-05-05 11:00:10 UTC 
(In reply to emohr from comment #1)
> With the upcoming version 22.04 playback is optimized. Please test when
> version 22.04 is available.

Really appreciate to the developers. Here is my experience.

1. For proxies of 1080p footage : Choppiness reduced from 15 frames to 4 frames.
2. For proxies of 4K footage : Not experienced any improvement.
Comment 3 Bernd 2022-12-12 20:16:27 UTC 
(In reply to Vaibhav Dhotre from comment #2)
> (In reply to emohr from comment #1)
> > With the upcoming version 22.04 playback is optimized. Please test when
> > version 22.04 is available.
> 
> Really appreciate to the developers. Here is my experience.
> 
> 1. For proxies of 1080p footage : Choppiness reduced from 15 frames to 4
> frames.
> 2. For proxies of 4K footage : Not experienced any improvement.

Can you check with 22.12 that came out today and see whether choppy playback for proxied 4k sources still exists?
Comment 4 Bug Janitor Service 2022-12-27 05:21:51 UTC 
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 5 Bug Janitor Service 2023-01-11 05:19:48 UTC 
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!