Hi. I dont know the state of Jackmidi so I did the same.
Its rather simple with Alsa: http://tldp.org/HOWTO/MIDI-HOWTO-9.html http://www.suse.de/~mana/alsa090_howto.html this got me started without problems: $ gcc seqdemo.c -o seqdemo -lasound /* seqdemo.c by Matthias Nagorni */ ---------------------------------------------------------------- #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <alsa/asoundlib.h> snd_seq_t *open_seq(); void midi_action(snd_seq_t *seq_handle); snd_seq_t *open_seq() { snd_seq_t *seq_handle; int portid; if (snd_seq_open(&seq_handle, "default", SND_SEQ_OPEN_INPUT, 0) < 0) { fprintf(stderr, "Error opening ALSA sequencer.\n"); exit(1); } snd_seq_set_client_name(seq_handle, "ALSA Sequencer Demo"); if ((portid = snd_seq_create_simple_port(seq_handle, "ALSA Sequencer Demo", SND_SEQ_PORT_CAP_WRITE|SND_SEQ_PORT_CAP_SUBS_WRITE, SND_SEQ_PORT_TYPE_APPLICATION)) < 0) { fprintf(stderr, "Error creating sequencer port.\n"); exit(1); } return(seq_handle); } void midi_action(snd_seq_t *seq_handle) { snd_seq_event_t *ev; do { snd_seq_event_input(seq_handle, &ev); switch (ev->type) { case SND_SEQ_EVENT_CONTROLLER: fprintf(stderr, "Control event on Channel %2d: %5d \r", ev->data.control.channel, ev->data.control.value); break; case SND_SEQ_EVENT_PITCHBEND: fprintf(stderr, "Pitchbender event on Channel %2d: %5d \r", ev->data.control.channel, ev->data.control.value); break; case SND_SEQ_EVENT_NOTEON: fprintf(stderr, "Note On event on Channel %2d: %5d \r", ev->data.control.channel, ev->data.note.note); break; case SND_SEQ_EVENT_NOTEOFF: fprintf(stderr, "Note Off event on Channel %2d: %5d \r", ev->data.control.channel, ev->data.note.note); break; } snd_seq_free_event(ev); } while (snd_seq_event_input_pending(seq_handle, 0) > 0); } int main(int argc, char *argv[]) { snd_seq_t *seq_handle; int npfd; struct pollfd *pfd; seq_handle = open_seq(); npfd = snd_seq_poll_descriptors_count(seq_handle, POLLIN); pfd = (struct pollfd *)alloca(npfd * sizeof(struct pollfd)); snd_seq_poll_descriptors(seq_handle, pfd, npfd, POLLIN); while (1) { if (poll(pfd, npfd, 100000) > 0) { midi_action(seq_handle); } } } ------------------------------------------------------------------ Cheers, Malte -- Malte Steiner media art + development -www.block4.com- next concert: Elektronengehirn 30.8. ICMC 2007, Copenhagen, Denmark _______________________________________________ 64studio-devel mailing list [email protected] http://lists.64studio.com/mailman/listinfo/64studio-devel
