openshot.bugs team mailing list archive

[Samuel Mimram <586777@xxxxxxxxxxxxxxxxxx>]

To my opinion, image satbilization is a really must-have feature when
editing videos filmed with a non-professional camera (which I guess is
the case for most openshot users). Right now, the videostab2 filter in
mlt does a great job, so it would be really nice to have it integrated
directly in openshot soon, and not to wait for the openshot library to
come out. In order to get a stabilized video named video.mp4, I manually
do

melt -verbose -progress -profile hdv_720_30p video.mp4 -filter
videostab2 -consumer "xml:video-vstab.mlt" all=1 real_time=-2

and then

melt -verbose -progress video-vstab.mlt -consumer "avformat:video-
vstab.mp4" properties=mp4 vcodec=libx264 real_time=-2 threads=3

Notice that the filter is two-pass, which means that it is not immediate
to add it as a plugin for openshot: the first pass generates and mlt
file with the filter's parameters (and the computed motion vectors in
particular). What should be reasonably easy to do would be to have the
first pass computed (with a progress dialog) when the plugin is used,
and then use the resulting filter.

Thanks!

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https://bugs.launchpad.net/bugs/586777

Title:
  Feature request: Image Stabilization filter

Status in OpenShot Video Editor:
  Triaged

Bug description:
  Hi,
  In fact, there is an existing bug but i can not find it. It will be a great feature for Openshot if we have this. So, we must use a great tool : Transcode and a special filter than you can find/see here and some awesone exemples. http://public.hronopik.de/vid.stab/features.php?lang=en
  Indeed, we must open two instances of transcode : one for analyse the file and the second for apply the modification.  
  In details, we have :
  transcode -J stabilize -i MOVIE -y null,null -o dummy 
  transcode -J transform -i MOVIE OUTPUTOPTIONS -o STABILE 
  We have too the possibility to apply this for the video very very shaked by this command :
  transcode -J stabilize=shakiness=8:show=1,preview -i MOVIE -y null,null -o dummy 
  The maintener of this filter is Georg Martius

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