Re: Routing & Filtering

On Thu, Aug 21, 2008 at 12:15:01AM +0200, Jacek Kurasiewicz wrote:
> Alexandre,
>
> Thank you for your response. This for me works as expected:
>
> fnew myfilt
> fmap {any {0 1}} {any {0 1}} // routing from in to out of dev 0
> i
>
> But adding following lines:
> s
> fmap {pc {0 1} 5} {pc {0 1} 15} // redirecting program change 5 -> 15
> i
> doesn't work as expected.
>
> What do you think about it?
> Is it my bug?
>

i just tested with slightly differnt parameters (to match my midi
setup and it works here).

midish numbers prog changes from 0; so for instance program change
4 on midish may correspond to program change 5 on certain hardware.

can you check that your midi hardware channels numbers and program
changes numbers start at 0? if not remplace: 1 -> 0, 5 -> 4 and/or
15 -> 14 on the midish side.

to keep things consistent everything is numbered from 0 on midish.

to help debugging filters you can turn debug mode on with the
fillowing command:

	debug filt 1

it will display lines like this one:

filt_mapev: (any 2:2 0:0 > any 0:0 0:0): xpc {2 0} 4 2bc0 -> xpc {0 0} 4 2bc0
	    ^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^    ^^^^^^^^^^^^^^^^
	        tranformation rule	    input event       output event

-- Alexandre