Bug 513133

Summary: YouTube playback problem with MP4265(HENC)
Product: [Applications] kdenlive Reporter: George <gs19621205>
Component: Rendering & ExportAssignee: Jean-Baptiste Mardelle <jb>
Status: REPORTED ---    
Severity: normal CC: nate
Priority: NOR    
Version First Reported In: 25.08.3   
Target Milestone: ---   
Platform: Other   
OS: Other   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description George 2025-12-09 17:31:30 UTC
SUMMARY

       I use Kdenlive Version 25.08.02 with Incompatibility issues (codec compliance). Youtube does not play videos consistenly 
     

    OBSERVED RESULT

       When i render with ULTRA HIGH DEFINITION 4K MP4 265(HENC),butsound is OK. When i generate video at GENERIC(...)  MP4 264/AAC the playback(In YouTube always) is fine. 
    My settings (both of them) remain the same    (Render Full Color,Custom Quality 100%,ab=160k acodec=aac channels=2 color_range=pc crf=15 f=mp4 g=15 movflags=+faststart preset=slower real_time=-1 threads=3 vcodec=libx264) 


    ADDITIONAL INFORMATION

    If you find it usefll YouTube with problems is : (https://studio.youtuube.com/video/BPheDtAuVwo/edit).
Also in PC i did not find any problem. The two versions played without any problem
Comment 1 George 2025-12-09 18:07:29 UTC
            I use Kdenlive Version 25.08.02 with Incompatibility issues (codec compliance). 
    Youtube does not play videos consistenly when i render with ULTRA HIGH DEFINITION 4K MP4 265(HENC),butsound is OK. When i generate video at GENERIC(...)  MP4 264/AAC the playback(In YouTube always) is fine. 
    My settings (both of them) remain the same (Render Full Color,Custom Quality 100%,ab=160k acodec=aac channels=2 color_range=pc crf=15 f=mp4 g=15 movflags=+faststart preset=slower real_time=-1 threads=3 vcodec=libx264) 
    If you find it usefull the link of the version with problems is (https://studio.youtube.com/video/BPheDtAuVwo/edit)
   Also in PC i did not find any problem. The two versions played without any problem