[Kdenlive-devel] Null Cutter uploaded

[Jason Wood]

Hi,

I've now finished the pre-pre-pre-alpha (well, it's not quite that bad) 
version of nullcutter.

Firstly, what it doesn't do 
--------------------------------
(for anyone not paying attention recently)

* It doesn't do any kind of video rendering whatsoever, in fact the video 
window just shows a little "pong style" rectangular "ball" bouncing around 
the confines of a window.

* It doesn't implement the majority of the interface that I wrote up recently 
in the cutting specification, just enough so that it can do what it does.

What it does do :
----------------------

* It shows off how the GUI can connect to the cutter, ask it for a video 
window, and then embed that video window within itself.
* It shows that if the Cutter terminates abnormally, the GUI does not crash 
(and indeed could start a new instance of the cutter easily). To abnormally 
terminate the nullcutter, just kill -9 it ;-)

Current Bugs/Issues :
----------------------------

* The renderer crashes if the GUI abnormally terminates. I think this is me 
being lazy on error checking though. Expect it to be cleared up soon.

* On startup of Kdenlive, the Cutter video window flashes on-screen before 
being embedded. This is an issue to do with how hackish the methods of 
getting SDL into an embedded window are. It can be avoided if you are using 
any toolkit which allows you to create a window without showing it 
automatically (grrr.... I chose SDL for nullcutter because I thought it would 
be nice and simple, I ended up spending three hours searching the web trying 
to get embedding to work)

And an important Kdenlive issue :
* Kdenlive has a bug which means that it does not correctly terminate - it 
crashes after it closes it's main window and then fails to terminate. Best 
bet at the moment - xkill it rather than quiting. I shall be looking into 
this soon.

To download it, the following commands should work :

cvs -d:pserver:anonymous at cvs.kdenlive.sourceforge.net:/cvsroot/kdenlive login 
 
cvs -z3 -d:pserver:anonymous at cvs.kdenlive.sourceforge.net:/cvsroot/kdenlive co 
nullcutter

Don't expect video editing, or in fact anything usable just yet. But take a 
look if you are interested in the direction Kdenlive is heading in. (for 
better or worse...)

Cheers,
Jason

-- 
Jason Wood
Homepage : www.uchian.pwp.blueyonder.co.uk