Will there be video rotation?

Asked by Trevor

Will there be an option to rotate video? Tilting it clockwise and counter clockwise? How about negative values for the hight and width so it is possible to fake a 3D spin. Might as well throw in a build in 3D spin effect.

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OpenShot Video Editor Edit question
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Jonathan Thomas
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Jonathan Thomas (jonoomph) said :
#1

I hope rotation will be included. =) I didn't see any way in MLT to handle
rotation yet. But, I also haven't seriously investigated it. We'll get to
it eventually. Thanks!

On Mon, Oct 5, 2009 at 9:22 AM, Trevor
<email address hidden>wrote:

> New question #84857 on OpenShot Video Editor:
> https://answers.launchpad.net/openshot/+question/84857
>
> Will there be an option to rotate video? Tilting it clockwise and counter
> clockwise? How about negative values for the hight and width so it is
> possible to fake a 3D spin. Might as well throw in a build in 3D spin
> effect.
>
> --
> You received this question notification because you are an answer
> contact for OpenShot Video Editor.
>

Revision history for this message
Mike Vaughn (mikevaughn) said :
#2

Given that this is possible in Kdenlive, which also uses the MLT framework as its backend, i would assume this is something we might expect in the foreseeable future (not to sound pushy or presumptuous, of course)? :D

Revision history for this message
Jonathan Thomas (jonoomph) said :
#3

Of course. If Kdenlive does it, then MLT does it... and thus I would expect
it to be included. I just need to find time to email Dan (creator of MLT)
and ask about how rotation works.

Thanks,
-Jonathan

On Mon, Oct 5, 2009 at 11:34 AM, Contrast <
<email address hidden>> wrote:

> Question #84857 on OpenShot Video Editor changed:
> https://answers.launchpad.net/openshot/+question/84857
>
> Contrast proposed the following answer:
> Given that this is possible in Kdenlive, which also uses the MLT
> framework as its backend, i would assume this is something we might
> expect in the foreseeable future (not to sound pushy or presumptuous, of
> course)? :D
>
> --
> You received this question notification because you are an answer
> contact for OpenShot Video Editor.
>

Revision history for this message
Jonathan Thomas (jonoomph) said :
#4

I figured out how to accomplish video rotation. Kdenlive uses the 3dflippo frie0r effect. I tried to get this working, but that filter seems really quirky, and I haven't figured it out yet. For some reason, the frie0r effects have almost zero documentation. I was able to find the source code of this effect, but it was quite complicated and I ran out of time. So... I'll attack this again soon, but I'm defeated for the moment. =)

Revision history for this message
Trevor (trevorlangas) said :
#5

Thanks for the progress report.

Revision history for this message
Best Jonathan Thomas (jonoomph) said :
#6

I've spoken to Dan (the creator of MLT), and he pointed me to another way to accomplish rotation. MLT has a filter called the "affine" filter, which does rotation, skewing, and a few different things like that. So, I'm going to see about implementing this effect. Thanks!

Revision history for this message
Trevor (trevorlangas) said :
#7

Thanks Jonathan Thomas, that solved my question.