Re: MIDI controlled slideshow?

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S Fielding wrote:
>> This could be worth a read:
>>
>> http://www.gimp.org/unix/howtos/gimp-midi.html
>>
>> It's something I'm interested in doing myself, but haven't had the 
>> time to try it yet - I'd be interested in your thoughts on GIMP & MIDI.
>>
>> Gavin.
>>     
> I've not noticed this before but it interested me.  I've done some 
> experimenting, only to find that the controller channels don't work 
> properly. I've filed a bug report with the GIMP ( 
> http://bugzilla.gnome.org/show_bug.cgi?id=537960 ) and a patch which has 
> been accepted so if you do want to try it, you might want to have quick 
> look at the bug report to see what might happen.
>
> Simon Fielding
>
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> Linux-audio-user mailing list
> Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
>   
Sorry about replying to myself but I've played with this some more and 
it does seem to do what it says on the box.

I created a gimp gap animation of a few slides (pic_00001.xcf, 
pic_00002.xcf etc) and opened the first one manually. Then I mapped 
"note 00 on" (on channel 15) to plugin-gap-next and "note 02 on" to 
plugin-gap-first. Finally, I connected a vkeybd to gimp in qjackctl. 
Playing low C's stepped through the slides perfectly and low D restarted 
the show. The only caveat is that, if you wish to use a spare MIDI 
channel rather than respond to every channel, you will need to apply the 
patch I mentioned above to your install of gimp.

Hope this is helpful to somebody.

Simon
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