This is pretty nice... thanks! I changed 1 thing and added another method to the external which might be useful for others [updated the help with that].
First, I figured the external shouldn't try to start the jack server if it isn't already started.. so i changed the options used for creating the client to reflect that. Second, I created a 'locate' method, which lets you set a new location for the transport [giving it a frame number].. Most usefully, |locate 0( to put the transport back to the beginning. I've attached the diff and the updated help file. -Ale On Tue, Feb 19, 2008 at 12:11 PM, Andy Farnell <padawa...@obiwannabe.co.uk> wrote: > On Tue, 19 Feb 2008 12:31:12 -0600 > "Jacob Lee" <jel...@uiuc.edu> wrote: > >> What are you using as the jack transport master? This external doesn't >> have the capability to act as the master, so something else has to set >> the tempo and time signature (that's what I'm using klick for). And pd >> has to be computing audio, since the plugin gets the current transport >> position during the pd dsp cycle. Those are the two things I would >> check. (I don't think jackd prints anything in this case, by the way.) > > > qjackctl under linux > > > I think it defaults to 120bpm 4/4 > > Messages usually appear in the qjackctl window (with Ardour etc) > > Pretty sure audio DSP was running, will check it again tonight, > > Andy > > >> >> On Tue, Feb 19, 2008 at 9:50 AM, Andy Farnell >> <padawa...@obiwannabe.co.uk> wrote: >> > >> > >> > Hi Jacob >> > >> > Connects to jack server ok. Reports good connection. Can start and stop >> > transport. >> > >> > But; >> > >> > No transport notification message printed by jackd >> > Query doesn't work, no data on outlets >> > >> > Haven't had time to debug yet, could be something my end. >> > >> > a. >> > >> > >> > >> > >> > On Sun, 17 Feb 2008 19:51:27 -0600 >> > "Jacob Lee" <artd...@gmail.com> wrote: >> > >> > > I've added some code to the jack_transport external >> > > (tb/jack_transport/ in pd-extended) to show the current bar/beat (and >> > > also bpm and tempo) in real time. Messages are only sent out when pd >> > > is computing audio, and also no more than once per beat (to avoid >> > > floods of messages). >> > > >> > > I'm not outputting all the available information from the jack >> > > transport -- e.g. the current tick within the beat -- either because >> > > it updates too quickly or because it's just not useful to me, but it >> > > would be trivial to add those. >> > > >> > > The motivation here is that I'm using klick -- >> > > http://das.nasophon.de/klick/ -- as the jack transport master (mainly >> > > to control sooperlooper), and now it is possible to trigger events >> > > within pd at particular beats or bar numbers. >> > > >> > > The code is available at >> > > http://artdent.homelinux.net/svn/jack_transport~/ . The makefile >> > > should be suitable for building jack_transport~ from inside a >> > > directory that is sibling to the existing jack_transport. I've only >> > > tested it on Linux, but it should work anywhere jack_transport does. >> > > >> > > I hope this external is useful to others. Suggestions for improvements >> > > are of course welcome. >> > > >> > > -- >> > > Jacob Lee >> > > artd...@gmail.com >> > > >> > > _______________________________________________ >> > > PD-list@iem.at mailing list >> > > UNSUBSCRIBE and account-management -> >> > http://lists.puredata.info/listinfo/pd-list >> > >> > >> > -- >> > Use the source >> > >> > _______________________________________________ >> > pd-l...@iem.at mailing list >> > UNSUBSCRIBE and account-management -> >> > http://lists.puredata.info/listinfo/pd-list >> > >> >> >> >> -- >> Jacob Lee >> artd...@gmail.com >> >> _______________________________________________ >> PD-list@iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://lists.puredata.info/listinfo/pd-list > > > -- > Use the source > > _______________________________________________ > PD-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list >
--- jack_transport~-orig.c 2009-05-27 12:29:43.000000000 -0700
+++ jack_transport~.c 2009-05-27 15:55:19.000000000 -0700
@@ -49,7 +49,7 @@
static void jack_transport_connect(jack_transport_tilde_t * x)
{
x->x_jack_client = jack_client_open("pure_data_jack_transport",
- JackNullOption, NULL);
+ JackNoStartServer, NULL);
if (!x->x_jack_client) {
post("jack_transport~: can't connect to jack server");
return;
@@ -103,6 +103,14 @@
jack_transport_stop(x->x_jack_client);
}
+static void jack_transport_locater(jack_transport_tilde_t * x, t_floatarg f)
+{
+ if (!x->x_jack_client)
+ return;
+
+ jack_transport_locate(x->x_jack_client, (jack_nframes_t)f);
+}
+
t_int *jack_transport_tilde_perform(t_int *w)
{
jack_transport_tilde_t *x = (jack_transport_tilde_t *)(w[1]);
@@ -195,6 +203,9 @@
(t_method)jack_transport_stopper,
gensym("stop"), 0, 0);
class_addmethod(jack_transport_tilde_class,
+ (t_method)jack_transport_locater,
+ gensym("locate"), A_DEFFLOAT, 0);
+ class_addmethod(jack_transport_tilde_class,
(t_method)jack_transport_tilde_dsp,
gensym("dsp"), 0, 0);
class_addbang(jack_transport_tilde_class,
jack_transport~-help.pd
Description: application/puredata
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