Logiciels divers autour du protocole « Open Sound Control » aka OSC
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/*
*
* code semi-grabed from the original asedump.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <alsa/asoundlib.h>
#include "alsaseq.h"
extern int verbosity;
/* ----------------------------------------------------------------- */
snd_seq_t * create_sequencer(char *name)
{
snd_seq_t *p_seq;
int err;
#if DEBUG_LEVEL
fprintf(stderr, "---> %s ( '%s' )\n", __func__, name);
#endif
/* open sequencer */
err = snd_seq_open(&p_seq, "default", SND_SEQ_OPEN_DUPLEX, 0);
// fprintf(stderr, " seq_open --> %d\n", err);
if (err) {
fprintf(stderr, "%s : open sequencer -% d", __func__, err);
exit(1);
}
/* set our client's name */
err = snd_seq_set_client_name(p_seq, name);
if (err) {
fprintf(stderr, "%s : set client name -% d", __func__, err);
exit(1);
}
return p_seq;
}
/* ----------------------------------------------------------------- */
/* ----------------------------------------------------------------- */
int create_port(snd_seq_t *seq)
{
int err;
#if DEBUG_LEVEL
fprintf(stderr, "---> %s (%p)\n", __func__, seq);
#endif
err = snd_seq_create_simple_port(seq, "kontrol2osc",
SND_SEQ_PORT_CAP_WRITE |
SND_SEQ_PORT_CAP_SUBS_WRITE ,
SND_SEQ_PORT_TYPE_MIDI_GENERIC |
SND_SEQ_PORT_TYPE_APPLICATION );
if (err) {
fprintf(stderr, "%s:%s snd_seq_create_simple_port : err %d\n",
__FILE__, __func__, err);
}
return err;
}
/* ----------------------------------------------------------------- */
void list_ports(snd_seq_t *seq)
{
snd_seq_client_info_t *cinfo;
snd_seq_port_info_t *pinfo;
int client;
snd_seq_client_info_alloca(&cinfo);
snd_seq_port_info_alloca(&pinfo);
puts(" Port Client name Port name");
snd_seq_client_info_set_client(cinfo, -1);
while (snd_seq_query_next_client(seq, cinfo) >= 0) {
client = snd_seq_client_info_get_client(cinfo);
snd_seq_port_info_set_client(pinfo, client);
snd_seq_port_info_set_port(pinfo, -1);
while (snd_seq_query_next_port(seq, pinfo) >= 0) {
/* we need both READ and SUBS_READ */
if ((snd_seq_port_info_get_capability(pinfo)
& (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ))
!= (SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ))
continue;
printf("%3d:%-3d %-32.32s %s\n",
snd_seq_port_info_get_client(pinfo),
snd_seq_port_info_get_port(pinfo),
snd_seq_client_info_get_name(cinfo),
snd_seq_port_info_get_name(pinfo));
}
}
}
/* ----------------------------------------------------------------- */
/* ----------------------------------------------------------------- */
/* ----------------------------------------------------------------- */