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[Bug 520941] Re: Fade in/out glitches

 

Looks like the code which generates sequence.mlt has a bug which means
it doesn't insert single frame gaps between clips (in the case that
you've got them in your project).  It won't even be visible that you
have a single frame gap because when you play the video through it won't
appear.  This leads to a mismatch between the clip timing and the
transition timing (which runs off a different timeline and _will_ have
the additional gap).

There's a simple fix in the code though I haven't been able to fully
test it yet - a workaround for now would be to extend any clips which
have a 1 frame gap before the start of the next clip (though it might be
hard to spot them - zerbob there's just such a gap between the
second017.jpg and bulldozer.avi clips in the test project you sent).

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https://bugs.launchpad.net/bugs/520941

Title:
  Fade in/out glitches

Status in OpenShot Video Editor:
  Confirmed

Bug description:
  Hi,

  I don't know if anyone else has experienced this, but now and again
  (not all the time) my fades in and out glitch at the outer end: before
  a fade in, the image or video appears momentarily (probably just for
  one frame) then disappears, and the fade starts normally. Similarly at
  the end, with the final frame flashing up full brightness.

  It also seems to some extent to happen on audio - it's like OpenShot
  realises a moment too late that it's not meant to be playing the
  audio, or that a fade is meant to be happening.

  Sometimes it doesn't happen, and sometimes it fixes itself...
  unfortunately not on a 'quick' project I've been doing this morning!

  Anyway. It's absolutely great work - I'm so impressed! Something as
  good as this, and non-linear (I can't understand what you can even do
  with linear editing!) is a joy to have!

  Ubuntu 8.04
  DEB 1.0.0

  Again - great application. I've already done some stuff I'm really
  pleased with!

  Cheers,

  Mike

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