i have bought a peavey studiomix midi controller on ebay, and it sends NRPN messages (non-registered parameter numbers). when i move a slider, it sends the slider number encoded in 98 and 99 and the value in the DATA ENTRY controllers 6 and 38. i would like to map these to ordinary midi controllers, or better yet, get nrpn support into ardour.
how do i get nrpn controller values from the alsa sequencer without having to parse the individual events and put them together by hand ?
grepping through alsa-lib, i found
static struct extra_event_list_t {
int event;
int (*decode)(snd_midi_event_t *dev, unsigned char *buf, int len, snd_seq_event_t *ev);
} extra_event[] = {
{SND_SEQ_EVENT_CONTROL14, extra_decode_ctrl14},
/*{SND_SEQ_EVENT_NONREGPARAM, extra_decode_nrpn},*/
/*{SND_SEQ_EVENT_REGPARAM, extra_decode_rpn},*/
};
which makes me think it might not yet be implemented....
any hints or fine manuals around ?
(disclaimer: i know absolutely *nothing* about the alsa seq code, my level of understanding is matthias' example client.)
best,
jörn
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Jörn Nettingsmeier Kurfürstenstr 49, 45138 Essen, Germany http://spunk.dnsalias.org (my server) http://www.linuxdj.com/audio/lad/ (Linux Audio Developers)
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