Hello everybody,
I'm very satisfied with kdenlive, but I'm having a strange issue with some effects:
for example if I use a curves effect from the colour correction, when I create a point on the curve for luma (eg.) the picture becomes white, and no matter how I move the point the picture doesn't change even if the curve is maintained strait .

the same thing happens when I use the vignette effect: the centre of the ellipse is on the top/left corner of the picture even if I move the x and y sliders from 0 to 999 but if x=1000 (max value) then the centre of the ellipse pops or jumps to the top/right corner. the feather behaves the same way ( the edge is sharp for all the values between 1 and 999 , and becomes soft suddenly with the values 1000 ie max value ).

I'm using kdenlive from sunab_svn on ubuntu 10.10 32bits

thanks for your help.

here's a video showing the problem.
appologize for the bad quality.

http://www.youtube.com/watch?v=_fYEAdtqPnY

Hi al,

Cannot reproduce here. It sounds like if you were using wrong effect xml files. What does
$ find /usr |grep 'kdenlive/effects/frei0r_curves.xml'
return? Did you also compile a kdenlive version yourself?

Simon

thanks Granjow for your fast reply .
Well I didn't compile kdenlive at all, but I'm using a pre-compiled version from the sunab_svn ppa as mentioned above.
for the terminal instruction here's the output:

/usr/share/kde4/apps/kdenlive/effects/frei0r_curves.xml

I guess it's ok.

I think this has something to do with kde itself but I'm not sure !
any other suggestions ?
thanx.

any ideas please, this problem is preventing me from using a lot of filters : specially color correction.

Can you try this in a terminal:

melt -profile dv_pal myvideo.mpg -attach vignette radius=0.3

(replace myvideo.mpg with one of your clips). What is the result? Does the vignette effect work correctly (circle centered in image)?

Next, try this:

melt -profile dv_pal myvideo.mpg -attach vignette radius=0.3 -consumer xml

And copy / paste the result here.

first thanks for your help.

the first line gives me a black window : no picture no effect, nothing. (see the picture in attachment ) .

Ok, the xml output seems correct (I should remember that pasting xml in a forum post is not a great idea)

Strange that you got a black video... Let's try with a color clip:

melt -profile dv_pal colour:red -attach vignette radius=0.3

Also, to make sure that you don't have several MLT versions installed, please post the result of:

ls -la /usr/local/lib/libmlt*

and

ls -la /usr/lib/libmlt*

the 2nd instruction gives this output: (attached txt file)

thanks again.
the first line gave me a black video again.

the other instructions give this:

:~$ ls -la /usr/local/lib/libmlt*

ls: impossible d'accéder à /usr/local/lib/libmlt*: Aucun fichier ou dossier de ce type

:~$ ls -la /usr/lib/libmlt*

-rw-r--r-- 1 root root 128568 2011-07-06 07:48 /usr/lib/libmlt.so.0.7.3
-rw-r--r-- 1 root root 121168 2011-07-06 07:48 /usr/lib/libmlt++.so.0.7.3
lrwxrwxrwx 1 root root 17 2011-07-06 16:34 /usr/lib/libmlt++.so.3 -> libmlt++.so.0.7.3
lrwxrwxrwx 1 root root 15 2011-07-06 16:34 /usr/lib/libmlt.so.4 -> libmlt.so.0.7.3

What about:

melt -profile dv_pal colour:red

You said you are using MLT/Kdenlive from sunab's experimental repository. Did you update to latest available version? (kdenlive rev. 5767)?

Well I get a red video.
and yes I'm using the last release rev. 5767 ( I'm updating daily )

any suggestions ?
thank you for your help .

I tried this instruction:

melt -profile dv_pal colour:red -attach vignette radius=1

and here's the result I get:

Ok, so you have the same problem as in Kdenlive, the center of the vignette circle is not centered. So there must be something wrong in MLT. I wonder if you are affected be a locale issue, like reported on the bugtracker:

http://kdenlive.org/mantis/view.php?id=2182

What is the output of this in a terminal:

locale

loale gives this :

LANG=fr_FR.utf8
LC_CTYPE="fr_FR.utf8"
LC_NUMERIC="fr_FR.utf8"
LC_TIME="fr_FR.utf8"
LC_COLLATE="fr_FR.utf8"
LC_MONETARY="fr_FR.utf8"
LC_MESSAGES="fr_FR.utf8"
LC_PAPER="fr_FR.utf8"
LC_NAME="fr_FR.utf8"
LC_ADDRESS="fr_FR.utf8"
LC_TELEPHONE="fr_FR.utf8"
LC_MEASUREMENT="fr_FR.utf8"
LC_IDENTIFICATION="fr_FR.utf8"
LC_ALL=


(the last line is empty )

that is the source of all my pain, so what is the solution ? do I have to change the localization ?