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ladspa plugin bug

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jmpoure_drupal
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ladspa plugin bug

Thu Aug 30, 2007 9:41 am

Dear friends,



It seems that the audio effect "Modulation" does not work any longer.

In fact audio modulation works, but the image is black.



inigo montage.kdenlive

Quote:


+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+

|1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|

+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+

+---------------------------------------------------------------------+

| H = back 1 minute, L = forward 1 minute |

| h = previous frame, l = next frame |

| g = start of clip, j = next clip, k = previous clip |

| 0 = restart, q = quit, space = play |

+---------------------------------------------------------------------+

plugin_mgr_get_object_file_plugins: error opening shared object file '/usr/lib/ladspa/blop_files': /usr/lib/ladspa/blop_files: Ne peut lire le fichier de données: est un répertoire

I/O warning : failed to load external entity "/tmp/kde-jmpoure/kdenlive/1188465517816870563.rack"

Could not parse file '/tmp/kde-jmpoure/kdenlive/1188465517816870563.rack'


Inigo crashes sometimes. kdenlive is not able to display the video at that point, when the audio effect "modulation" is applied.



Here is a working file, without modulation :



file montage.bad :


file montage.good


diff -a montage.bad montage.good

Quote:
45,47d44

<

<

<

68,69d64

<

<
ddennedy
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Re: ladspa plugin bug

Thu Aug 30, 2007 1:41 pm

looks like something wrong with the ladspa blop plugin. can you remove the blop package temporarily and see if it helps?
jmpoure_drupal
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Re: ladspa plugin bug

Thu Aug 30, 2007 2:01 pm

Thanks, I removed the /usr/lib/ladspa/blop directory, which was the problem. Now MLT plays very smoothly.



/usr/lib/ladspa directory structure can include subdirectories like the blop directory (including three files).

MLT should not break when finding directories in /usr/lib/ladspa/



Do you think this is a bug in MLT?



Kind regards,

Jean-Michel
jmpoure_drupal
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Re: ladspa plugin bug

Thu Aug 30, 2007 9:23 pm

This could break Kdenlive in Debian SID.
ddennedy
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Re: ladspa plugin bug

Tue Sep 04, 2007 2:27 am

Yes, this is a bug in MLT, in code we appropriated from the jack-rack project.
ddennedy
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Re: ladspa plugin bug

Tue Sep 04, 2007 4:03 am

I just committed a fix to MLT subversion.
jmpoure_drupal
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Re: ladspa plugin bug

Tue Sep 04, 2007 12:19 pm

Thank you very much. This works great. I wonder if mlt needs a bugfix release. This was a really tiny but quite nasty bug ...

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