Comment 24 for bug 403154

Helen, what is your mp4 file encoded as? mpeg4? I only ask because mp4 can
also contain h.264... which is AVCHD.

Thanks,
-Jonathan

On Fri, Sep 11, 2009 at 10:17 PM, Helen McCall
<email address hidden>wrote:

> No - it has happened with MP4 codec as well.
>
> Helen
>
>
> On Sat, 2009-09-12 at 02:48 +0000, Jonathan Thomas wrote:
> > Quick question. Does this issue only happen when using AVCHD video
> > clips?
> >
>
> --
> 100% CPU core usage when previewing time-line
> https://bugs.launchpad.net/bugs/403154
> You received this bug notification because you are the registrant for
> OpenShot Video Editor.
>
> Status in OpenShot Video Editor: In Progress
>
> Bug description:
> Using complex keyframes can cause the viewing port to freeze so it will not
> play anymore.
>
> I have tested this with Jonathan's original Vimeo demo clip with the dog
> and the leaves.
>
> I have attached project .osp file for examination.
>
> I put the clip on the timeline, and set the clip properties so Video had
> fill enabled.
>
> I then set layout->end->x to 100% so it wiped across the screen
>
> I then duplicated this clip and placed the copy below it, and synchronised.
>
> On the duplicate I set layout->start->x to -100% and layout->end->x to 0%
> so it wiped across following the upper clip.
>
> At this point in the editing, the timeline would usually play without the
> viewing window freezing, but sometimes the viewing window would freeze and I
> would have to close OpenShot and re-start it.
>
> The next thing I did was to switch the sound to "off" on the lower
> duplicate clip.
>
> With these settings the timeline could not run fully without the viewing
> port freezing.
>
> Also it had another dramatic effect!
>
> If I re-loaded this saved project at this state, it would sometimes
> completely hang OpenShot as it tried to load!
>
> Sometimes it would load but without the clips being on the timeline, so
> only the parent clip showing in the Project Files tab.
>
> Sometimes it would load fully and I could play part of the timeline before
> the viewer froze.
>
> Helen McCall
>