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[Jonathan Thomas <Jonathan.Oomph@xxxxxxxxx>]

I did some testing with the newest version of MLT (0.7.2) and the latest
GIT version, and I don't see any problems with my test videos.  The 0.7
series of MLT introduced some multi-threading (i.e. pthreads), and I
wonder if that might be slowing down computers with only 1 or 2 cores.
My computer has 4 cores, and AVCHD seems about the same as it's always
been.  In other words, AVCHD is a bit choppy, but still usable and
watchable.

It might be helpful to attach a "small" AVCHD video clip to this bug
report, and other users can test for choppiness.  It might have
something to do with the resolution, bit rate, codec, or some other
factor.  However, at this point, I can not reproduce the problem, and so
I don't feel like it will be helpful to contact the MLT developers at
this point.  If we can learn a bit more, that will help us make a case.
=)

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https://bugs.launchpad.net/bugs/770316

Title:
  Sluggish video preview with mlt 0.7.0

Status in OpenShot Video Editor:
  New

Bug description:
  1. Fedora 14 x86_64
  2. RPM (RPMFusion)
  3. Openshot 1.3.0

  I'm the Openshot maintainer for Fedora. I got a but report against mlt
  in RPMfusion that the upgrade to 0.7.0 made playback sluggish. For
  him, 1 frame every 10 seconds. A quick test on my system with AVCHD
  video showed stuttering but still watchable video.

  Downgrading to mlt 0.6.2 seemed to help.

  Is 0.7.0 supported or is it too new? Kdenlive doesn't appear to be
  affected.