Re: [Qtractor-devel] LV2 presets

[Ralf M. <ral...@al...>]

On Sun, 2012-01-29 at 21:03 +0000, Rui Nuno Capela wrote:
> On 01/29/2012 06:31 PM, Albert Graef wrote:
> > On 01/29/2012 01:07 PM, Rui Nuno Capela wrote:
> >> you type a name and save.
> >
> > D'oh! Fairly obvious once you know it. :) Thanks a bunch.
> >
> > I may be missing another obvious thing here, but is there a way to
> > import existing presets in ttl format
> > (http://lv2plug.in/ns/ext/presets/), such as the ones that the Calf
> > plugins use?
> >
> 
> nope. these are qtractor presets and applies to any plugin type (ladspa, 
> dssi, vst and lv2) and predates any lv2 specification, if you know what 
> i mean
> 
> nb. there are special cases where you are suggested to save a plugin 
> state into a preset file (.qtx) eg. plugin states which are described by 
> more than just their control port values (aka. parameters) like vst 
> chunk blobs for instance.
> 
> this .qtx files are encoded in proper xml format and thus are of 
> exclusive use on qtractor alone.
> 
> however, given some scripting and a lot of spare time one could carve an 
> utility to convert to/from some other unique preset file formats that 
> are laying around out there ;)
> 
> byee

Isn't it missing the information what plugin exactly was used? I suspect
this information is stored in another file. Or does "type" inform about
the used plugin?

[spinymouse@archlinux ~]$
cat /mnt/suse11.2/home/spinymouse11.2/edubuntu_music_backup/edubuntu/qtr/RotarySpeaker-Slow_Rotary.qtx
<!DOCTYPE qtractorPlugin>
<preset version="0.4.8.31" type="RotarySpeaker_33923"
name="RotarySpeaker-Slow_Rotary">
 <configs/>
 <params>
  <param index="4" name="Speed Mode">1</param>
  <param index="5" name="Tap Spacing">0.5</param>
  <param index="6" name="Tap Offset">0.5</param>
  <param index="7" name="Mod Depth">0.1</param>
  <param index="8" name="Treble Motor">355.5</param>
  <param index="9" name="Bass Motor">474</param>
  <param index="10" name="Mic Distance">0.7</param>
  <param index="11" name="Reflection">0.3</param>
 </params>
</preset>