Hi,
The proper way to achieve this is to use osc.on_float which will call
a function each time an event is received. For instance, to implement
the mute button, we should call a function which will either backup
the current volume and set the volume to zero, or restore the old
volume. So, it can be implemented as follows:
# Where the old volume will be stored
vol1_old = ref 1.
# Implement the mute button
osc.on_float("/1/mute1", fun (x) -> if x == 1.0 then vol1_old :=
!vol1; vol1 := 0. else vol1 := !vol1_old end)
The solo button can be implemented in a simlar fashion (but you have
to backup the volume of all the tracks excepting the current one).
Currently there is no way to send OSC messages, but I have filed a bug
report so that I think of adding support for this soon... :
https://github.com/savonet/liquidsoap/issues/95
Cheers,
Samuel.
On Wed, Jul 31, 2013 at 4:29 PM, Ashworth Payne
<[email protected]> wrote:
> Hello list,
>
> I'm working on a mixer in TouchOSC and have had a little success. I can
> change volume on two sources, as well as pan them in the stereo field.
> Cool.
>
> Where I'm stuck is in implementing Mute and Solo buttons. I'm probably
> going about it in a screwy manner as I'm not a programmer. Some guidance
> would be greatly appreciated.
>
> Oh yeah, before giving over my (terrible code) and error messages: can I
> write data back to TouchOSC from Liquid Soap? Thanks in advance.
>
> Error message from console:
> At line 43, char 15-30:
> this value has type
> ()->float
> but it should be a subtype of
> something that is an orderable type
>
> # The volume for each source
> vol1 = ref 1.
> vol2 = ref 1.
>
> # Amplify sources according to their volume
> s1 = amplify({!vol1},s1)
> s2 = amplify({!vol2},s2)
> # Pan sources
> s1 = stereo.pan(pan=(osc.float("/1/rotary1",0.000)),field=90.,s1)
> s2 = stereo.pan(pan=(osc.float("/1/rotary2",0.000)),field=90.,s2)
>
> vol1 =
> if osc.float("/1/solo2",0.0) == "1.0" <line 43
> then
> vol1 := 0
> elsif
> osc.float("/1/mute1",0.0) == "1.0"
> then
> vol1 := 0
> else
> vol1 := osc.float("/1/fader7",0.500)
> end
>
> vol2 =
> Similar to vol1 but with a few logical changes
> end
>
>
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