playing backwards - reverse

Audio & Visual effects.

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playing backwards - reverse

Postby Dstil » Mon Oct 25, 2010 2:07 pm

Hi there,

new in Openshot (It is great! keep up the good work! where do I donate??? ;) )

I want a small video clip (scene) of 7 seconds to play normally,
and then, without stopping,
have the same clip playing backwards (reverse).
To offer the feeling you get when you push the "backwards" button at any media player or at your old VHS video.

If possible to have also the effect of the sound playing backwards (like a dj does with his disks - but maybe I am asking too much...ok forget the sound).

Is it feasbile?
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Re: playing backwards - reverse

Postby Victor » Mon Oct 25, 2010 5:00 pm

Hey,

To play a clip in reverse you should look here:

http://www.openshotusers.com/help/1.2/en/ar01s13.html#sect2_46

Good luck!
;)

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Re: playing backwards - reverse

Postby Cenwen » Tue Oct 26, 2010 5:26 pm

Think to duplicate him before and reverse the duplicate after.
For the rest follow the link of User. If you don't use English language, look here : http://openshotusers.com/ ;)
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Re: playing backwards - reverse

Postby Dstil » Tue Dec 07, 2010 10:07 am

Cenwen,

just to refer some issues I had with this.

1) original videoclip big. Let's call it the "Parent".
I cut only a part of the original videoclip and keep only this in my timeline. Let's call this part the "child"
I dublicated the "child".
I tried to play in reverse the "child" clip by changing it's properties...but what I got was reverse playing of another part of the "Parent" !!!!!! :?: :?: :?: :o :shock:

The only solution to this was to first export the "child" and create a new video, and then take that new video, reverse it, and then export it again.
Then combine the two new videos.
So I have:
- original clip
- child clip
- reverse child clip
- new videoclip = child + reverse child

Is this problem known or you want me to create a new troubleshooting topic for this?

2) Take one video and make it play backwards (child --> reverse child).
The new video that I export generates some black&white frames at the beginning...like a flash...and then the normal frames.
So when I get the new video (the one going backwards- reverse child) I have to cut off some frames in the start.

But at the end I managed to generate what I wanted.
I' ll post soon my creation to the forum. :D
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Re: playing backwards - reverse

Postby Andy » Tue Dec 07, 2010 12:59 pm

It's not a known issue as far as I know - best to log it as a bug on Launchpad.
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Re: playing backwards - reverse

Postby Dstil » Wed Dec 08, 2010 1:14 pm

problem 1:
https://bugs.launchpad.net/openshot/+bug/667806
I din't notice that and I just created a new one here (hope it will merge, I marked it as Duplicate):
https://bugs.launchpad.net/openshot/+bug/687286

problem 2:
https://bugs.launchpad.net/openshot/+bug/503112
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Re: playing backwards - reverse

Postby hambone » Tue Feb 01, 2011 4:11 am

I am also having the same issue.
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Re: playing backwards - reverse

Postby Cenwen » Tue Feb 01, 2011 2:55 pm

Think to update your MLT version. Here more explanations how to do this operation : http://openshotusers.com/forum/viewtopic.php?f=11&t=750
What is your version of MLT/melt ?
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Re: playing backwards - reverse

Postby hambone » Mon Feb 21, 2011 12:04 am

Not sure exactly what MLT does. I have updated it as you suggested and now have 0.6.2. Still having the issue with playing cutout clips in reverse.
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Re: playing backwards - reverse

Postby Cenwen » Tue Feb 22, 2011 4:01 pm

Ah. I have Lucid and the 0.6.0 and that's working. Perfect with the play head and a bit with the preview. I have not tested more, the actual problem is a crash.
Just a stupid question : Are you on Marverick ?
Could you launch Openshot in a console and put it the output ? With this, we will perhaps more explanation of this crash .
Thanks.
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Re: playing backwards - reverse

Postby hambone » Mon Feb 28, 2011 7:29 am

Hi, thanks for the response Cenwen. I ran it from a console and this time it just froze playback when it got to the reversed portion of the original clip, which it never did before.

Here is the output:

--------------------------------
OpenShot (version 1.3.0)
--------------------------------
Process no longer exists: 9215. Creating new pid lock file.
state saved
on_tlbImportFiles_clicked called with self.GtkToolButton
project modified: Added file
state saved
on_treeFiles_row_activated
on_mnuPreview_activate
on_tlbPlay_clicked called with self.GtkToolButton
project modified: Removed file
state saved
on_tlbImportFiles_clicked called with self.GtkToolButton
project modified: Added file
state saved
on_treeFiles_row_activated
on_mnuPreview_activate
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
project modified: Added clip
state saved
on_tlbArrow_clicked called with self.GtkRadioToolButton
on_tlbRazor_clicked called with self.GtkRadioToolButton
project modified: Sliced clip
state saved
project modified: Sliced clip
state saved
on_tlbRazor_clicked called with self.GtkRadioToolButton
on_tlbArrow_clicked called with self.GtkRadioToolButton
project modified: Moved clip
state saved
on_mnuDuplicate_activate
project modified: Duplicated clip
state saved
on_mnuDuplicate_activate
project modified: Duplicated clip
state saved
project modified: Moved clip
state saved
project modified: Moved clip
state saved
project modified: Moved clip
state saved
project modified: Moved clip
state saved
project modified: Moved clip
state saved
on_mnuClipProperties_activate
on_txtIn_value_changed
on_txtOut_value_changed
on_cboKeyFrame_changed
on_txtHeight_value_changed
on_txtWidth_value_changed
on_txtAlpha_value_changed
on_cboSimpleSpeed_changed
on_frmClipProperties_configure_event
on_frmClipProperties_configure_event
on_frmClipProperties_configure_event
on_frmClipProperties_configure_event
on_btnClose_clicked
project modified: Modified clip properties
state saved
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_tlbPlay_clicked called with self.GtkToolButton
on_frmMain_destroy
Killed
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Re: playing backwards - reverse

Postby Cenwen » Tue Mar 01, 2011 5:06 pm

Hi hambone,

Could you now give me more informations about your system (version of Ubuntu, environnement), MLT version and the type of file that you have use (if I can reproduce it) ?
Thanks.
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Re: playing backwards - reverse

Postby hambone » Wed Mar 02, 2011 3:07 am

Ubuntu 10.10
Linux Kernel 2.6.35-25-generic
Gnome 2.32.0
Melt 0.6.3

One of the file types I was working with was in an mp4 container and is H/264 30fps video and MPEG-4 AAC audio.

Thanks for your help.
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Re: playing backwards - reverse

Postby car_son2003 » Sun Aug 28, 2011 5:24 am

kindly help me? im new to this openshot.i want to know more....
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Re: playing backwards - reverse

Postby nixnine » Thu Sep 08, 2011 4:27 am

I don't have the SPEED tab under the video clip properties. Is that unusual?
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Re: playing backwards - reverse

Postby Andy » Thu Sep 08, 2011 11:38 am

Depends, the speed tab is only displayed for video files.
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