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IDProjectCategoryView StatusDate SubmittedLast Update
0002496KdenliveCapturepublic2012-01-22 16:232012-01-22 16:23
ReporterMZ 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
Platform32 bit intel and alikeOSKubuntuOS Version10.04
Product VersionRecent git 
Target VersionFixed in Version 
Summary0002496: Abnormal fps and its effect on "blue screen" effect
DescriptionI use a Sony HDR-HC9 MiniDV High Definition Handycam Camcorder (mpeg2), and after acquisition by using kdenlive, some (but not all) of the video m2t files have abnormal fps (according to ffmpeg -i): e.g. 30.65, 25.68, etc... instead of 25.
I never noticed it before and I think this has no impact when no effect is used in the montage.
Recently I used the blue screen effect, and when I use it on one of these clips, I get a very large desynchronization of sound and video, and kdenlive seems to loose montage points.
  
Steps To Reproducejust add blue screen effect on one of these clips with abnormal fps.
Additional InformationSo far I resolved the question by doing this:
ffmpeg -i Corse001.m2t -vcodec copy -acodec copy Corse1.m2t

the resulting file has a correct 25 fps, and the blue screen effect problem disappears...

I don't know if the problem is coming from the camcorder of from video acquisition program.
TagsNo tags attached.
Build/Install MethodBuild Script
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Date Modified Username Field Change
2012-01-22 16:23 MZ New Issue


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