diff --git a/analyse_midi_keyboard.c b/analyse_midi_keyboard.c new file mode 100644 index 0000000..56cfc6a --- /dev/null +++ b/analyse_midi_keyboard.c @@ -0,0 +1,83 @@ +#include +#include +#include +#include +#include +#include +#include +#include + + + +#define NUM_PORT 24 + +static snd_seq_t *seq; + +static void init_seq(void) +{ + int err; + + /* open sequencer */ + err = snd_seq_open(&seq, "default", SND_SEQ_OPEN_DUPLEX, 0); + if (err<0) printf("open sequencer"); + + /* set our client's name */ + err = snd_seq_set_client_name(seq, "analyseurmidi"); + if (err<0) printf("set client name"); +} + +static void create_port(void) +{ + int err; + + err = snd_seq_create_simple_port(seq, "analyseurmidi", + SND_SEQ_PORT_CAP_WRITE | + SND_SEQ_PORT_CAP_SUBS_WRITE, + SND_SEQ_PORT_TYPE_MIDI_GENERIC | + SND_SEQ_PORT_TYPE_APPLICATION); + if (err<0) + printf("Port non créé \n"); +} + +static void connect_port(void) +{ + int err; + err = snd_seq_connect_from(seq, 0, NUM_PORT, 0); + if (err < 0) + printf("Impossible de se connecter au port \n"); + +} + + +int main(){ + init_seq(); + struct pollfd *pfds; + int npfds, err; + create_port(); + connect_port(); + + npfds = snd_seq_poll_descriptors_count(seq, POLLIN); + pfds = alloca(sizeof(*pfds) * npfds); + for (;;) { + snd_seq_poll_descriptors(seq, pfds, npfds, POLLIN); + if (poll(pfds, npfds, -1) < 0) + break; + do { + snd_seq_event_t *event; + err = snd_seq_event_input(seq, &event); + if (err < 0) + break; + if (event) + { + if (event->type == SND_SEQ_EVENT_NOTEON) printf("coucou %d\n",event->data.note.note); + } + } while (err > 0); + fflush(stdout); + } + + + + snd_seq_close(seq); + + return 0; +} diff --git a/fichiersourceaseqdump.c b/fichiersourceaseqdump.c new file mode 100644 index 0000000..31d0cb8 --- /dev/null +++ b/fichiersourceaseqdump.c @@ -0,0 +1,438 @@ +/* + * aseqdump.c - show the events received at an ALSA sequencer port + * + * Copyright (c) 2005 Clemens Ladisch + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "aconfig.h" +#include "version.h" + +static snd_seq_t *seq; +static int port_count; +static snd_seq_addr_t *ports; +static volatile sig_atomic_t stop = 0; + + +/* prints an error message to stderr, and dies */ +static void fatal(const char *msg, ...) +{ + va_list ap; + + va_start(ap, msg); + vfprintf(stderr, msg, ap); + va_end(ap); + fputc('\n', stderr); + exit(EXIT_FAILURE); +} + +/* memory allocation error handling */ +static void check_mem(void *p) +{ + if (!p) + fatal("Out of memory"); +} + +/* error handling for ALSA functions */ +static void check_snd(const char *operation, int err) +{ + if (err < 0) + fatal("Cannot %s - %s", operation, snd_strerror(err)); +} + +static void init_seq(void) +{ + int err; + + /* open sequencer */ + err = snd_seq_open(&seq, "default", SND_SEQ_OPEN_DUPLEX, 0); + check_snd("open sequencer", err); + + /* set our client's name */ + err = snd_seq_set_client_name(seq, "aseqdump"); + check_snd("set client name", err); +} + +/* parses one or more port addresses from the string */ +static void parse_ports(const char *arg) +{ + char *buf, *s, *port_name; + int err; + + /* make a copy of the string because we're going to modify it */ + buf = strdup(arg); + check_mem(buf); + + for (port_name = s = buf; s; port_name = s + 1) { + /* Assume that ports are separated by commas. We don't use + * spaces because those are valid in client names. */ + s = strchr(port_name, ','); + if (s) + *s = '\0'; + + ++port_count; + ports = realloc(ports, port_count * sizeof(snd_seq_addr_t)); + check_mem(ports); + + err = snd_seq_parse_address(seq, &ports[port_count - 1], port_name); + if (err < 0) + fatal("Invalid port %s - %s", port_name, snd_strerror(err)); + } + + free(buf); +} + +static void create_port(void) +{ + int err; + + err = snd_seq_create_simple_port(seq, "aseqdump", + SND_SEQ_PORT_CAP_WRITE | + SND_SEQ_PORT_CAP_SUBS_WRITE, + SND_SEQ_PORT_TYPE_MIDI_GENERIC | + SND_SEQ_PORT_TYPE_APPLICATION); + check_snd("create port", err); +} + +static void connect_ports(void) +{ + int i, err; + + for (i = 0; i < port_count; ++i) { + err = snd_seq_connect_from(seq, 0, ports[i].client, ports[i].port); + if (err < 0) + fatal("Cannot connect from port %d:%d - %s", + ports[i].client, ports[i].port, snd_strerror(err)); + } +} + +static void dump_event(const snd_seq_event_t *ev) +{ + printf("%3d:%-3d ", ev->source.client, ev->source.port);// source = num du clavier qu'on met ds la ligne de commande; port num usb ? + switch (ev->type) { + case SND_SEQ_EVENT_NOTEON: + if (ev->data.note.velocity) + printf("Note on %2d, note %d, velocity %d\n", + ev->data.note.channel, ev->data.note.note, ev->data.note.velocity); + else + printf("Note off %2d, note %d\n", + ev->data.note.channel, ev->data.note.note); + break; + case SND_SEQ_EVENT_NOTEOFF: + printf("Note off %2d, note %d, velocity %d\n", + ev->data.note.channel, ev->data.note.note, ev->data.note.velocity); + break; + case SND_SEQ_EVENT_KEYPRESS: + printf("Polyphonic aftertouch %2d, note %d, value %d\n", + ev->data.note.channel, ev->data.note.note, ev->data.note.velocity); + break; + case SND_SEQ_EVENT_CONTROLLER: + printf("Control change %2d, controller %d, value %d\n", + ev->data.control.channel, ev->data.control.param, ev->data.control.value); + break; + case SND_SEQ_EVENT_PGMCHANGE: + printf("Program change %2d, program %d\n", + ev->data.control.channel, ev->data.control.value); + break; + case SND_SEQ_EVENT_CHANPRESS: + printf("Channel aftertouch %2d, value %d\n", + ev->data.control.channel, ev->data.control.value); + break; + case SND_SEQ_EVENT_PITCHBEND: + printf("Pitch bend %2d, value %d\n", + ev->data.control.channel, ev->data.control.value); + break; + case SND_SEQ_EVENT_CONTROL14: + printf("Control change %2d, controller %d, value %5d\n", + ev->data.control.channel, ev->data.control.param, ev->data.control.value); + break; + case SND_SEQ_EVENT_NONREGPARAM: + printf("Non-reg. parameter %2d, parameter %d, value %d\n", + ev->data.control.channel, ev->data.control.param, ev->data.control.value); + break; + case SND_SEQ_EVENT_REGPARAM: + printf("Reg. parameter %2d, parameter %d, value %d\n", + ev->data.control.channel, ev->data.control.param, ev->data.control.value); + break; + case SND_SEQ_EVENT_SONGPOS: + printf("Song position pointer value %d\n", + ev->data.control.value); + break; + case SND_SEQ_EVENT_SONGSEL: + printf("Song select value %d\n", + ev->data.control.value); + break; + case SND_SEQ_EVENT_QFRAME: + printf("MTC quarter frame %02xh\n", + ev->data.control.value); + break; + case SND_SEQ_EVENT_TIMESIGN: + // XXX how is this encoded? + printf("SMF time signature (%#010x)\n", + ev->data.control.value); + break; + case SND_SEQ_EVENT_KEYSIGN: + // XXX how is this encoded? + printf("SMF key signature (%#010x)\n", + ev->data.control.value); + break; + case SND_SEQ_EVENT_START: + if (ev->source.client == SND_SEQ_CLIENT_SYSTEM && + ev->source.port == SND_SEQ_PORT_SYSTEM_TIMER) + printf("Queue start queue %d\n", + ev->data.queue.queue); + else + printf("Start\n"); + break; + case SND_SEQ_EVENT_CONTINUE: + if (ev->source.client == SND_SEQ_CLIENT_SYSTEM && + ev->source.port == SND_SEQ_PORT_SYSTEM_TIMER) + printf("Queue continue queue %d\n", + ev->data.queue.queue); + else + printf("Continue\n"); + break; + case SND_SEQ_EVENT_STOP: + if (ev->source.client == SND_SEQ_CLIENT_SYSTEM && + ev->source.port == SND_SEQ_PORT_SYSTEM_TIMER) + printf("Queue stop queue %d\n", + ev->data.queue.queue); + else + printf("Stop\n"); + break; + case SND_SEQ_EVENT_SETPOS_TICK: + printf("Set tick queue pos. queue %d\n", ev->data.queue.queue); + break; + case SND_SEQ_EVENT_SETPOS_TIME: + printf("Set rt queue pos. queue %d\n", ev->data.queue.queue); + break; + case SND_SEQ_EVENT_TEMPO: + printf("Set queue tempo queue %d\n", ev->data.queue.queue); + break; + case SND_SEQ_EVENT_CLOCK: + printf("Clock\n"); + break; + case SND_SEQ_EVENT_TICK: + printf("Tick\n"); + break; + case SND_SEQ_EVENT_QUEUE_SKEW: + printf("Queue timer skew queue %d\n", ev->data.queue.queue); + break; + case SND_SEQ_EVENT_TUNE_REQUEST: + printf("Tune request\n"); + break; + case SND_SEQ_EVENT_RESET: + printf("Reset\n"); + break; + case SND_SEQ_EVENT_SENSING: + printf("Active Sensing\n"); + break; + case SND_SEQ_EVENT_CLIENT_START: + printf("Client start client %d\n", + ev->data.addr.client); + break; + case SND_SEQ_EVENT_CLIENT_EXIT: + printf("Client exit client %d\n", + ev->data.addr.client); + break; + case SND_SEQ_EVENT_CLIENT_CHANGE: + printf("Client changed client %d\n", + ev->data.addr.client); + break; + case SND_SEQ_EVENT_PORT_START: + printf("Port start %d:%d\n", + ev->data.addr.client, ev->data.addr.port); + break; + case SND_SEQ_EVENT_PORT_EXIT: + printf("Port exit %d:%d\n", + ev->data.addr.client, ev->data.addr.port); + break; + case SND_SEQ_EVENT_PORT_CHANGE: + printf("Port changed %d:%d\n", + ev->data.addr.client, ev->data.addr.port); + break; + case SND_SEQ_EVENT_PORT_SUBSCRIBED: + printf("Port subscribed %d:%d -> %d:%d\n", + ev->data.connect.sender.client, ev->data.connect.sender.port, + ev->data.connect.dest.client, ev->data.connect.dest.port); + break; + case SND_SEQ_EVENT_PORT_UNSUBSCRIBED: + printf("Port unsubscribed %d:%d -> %d:%d\n", + ev->data.connect.sender.client, ev->data.connect.sender.port, + ev->data.connect.dest.client, ev->data.connect.dest.port); + break; + case SND_SEQ_EVENT_SYSEX: + { + unsigned int i; + printf("System exclusive "); + for (i = 0; i < ev->data.ext.len; ++i) + printf(" %02X", ((unsigned char*)ev->data.ext.ptr)[i]); + printf("\n"); + } + break; + default: + printf("Event type %d\n", ev->type); + } +} + +static void list_ports(void) +{ + snd_seq_client_info_t *cinfo; + snd_seq_port_info_t *pinfo; + + 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) { + int 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)); + } + } +} + +static void help(const char *argv0) +{ + printf("Usage: %s [options]\n" + "\nAvailable options:\n" + " -h,--help this help\n" + " -V,--version show version\n" + " -l,--list list input ports\n" + " -p,--port=client:port,... source port(s)\n", + argv0); +} + +static void version(void) +{ + puts("aseqdump version " SND_UTIL_VERSION_STR); +} + +static void sighandler(int sig) +{ + stop = 1; +} + +int main(int argc, char *argv[]) +{ + static const char short_options[] = "hVlp:"; + static const struct option long_options[] = { + {"help", 0, NULL, 'h'}, + {"version", 0, NULL, 'V'}, + {"list", 0, NULL, 'l'}, + {"port", 1, NULL, 'p'}, + { } + }; + + int do_list = 0; + struct pollfd *pfds; + int npfds; + int c, err; + + init_seq(); + // Gere les options de la ligne de commande + while ((c = getopt_long(argc, argv, short_options, + long_options, NULL)) != -1) { + switch (c) { + case 'h': + help(argv[0]); + return 0; + case 'V': + version(); + return 0; + case 'l': + do_list = 1; + break; + case 'p': + parse_ports(optarg);//optarg = l'option + break; + default: + help(argv[0]); + return 1; + } + } + if (optind < argc) { + help(argv[0]); + return 1; + } + + if (do_list) { + list_ports(); + return 0; + } + + create_port(); + connect_ports(); + + err = snd_seq_nonblock(seq, 1); + check_snd("set nonblock mode", err); + + if (port_count > 0) + printf("Waiting for data."); + else + printf("Waiting for data at port %d:0.", + snd_seq_client_id(seq)); + printf(" Press Ctrl+C to end.\n"); + printf("Source Event Ch Data\n"); + + signal(SIGINT, sighandler); + signal(SIGTERM, sighandler); + + npfds = snd_seq_poll_descriptors_count(seq, POLLIN); + pfds = alloca(sizeof(*pfds) * npfds); + for (;;) { + snd_seq_poll_descriptors(seq, pfds, npfds, POLLIN); + if (poll(pfds, npfds, -1) < 0) + break; + do { + snd_seq_event_t *event; + err = snd_seq_event_input(seq, &event); + if (err < 0) + break; + if (event) + dump_event(event); + } while (err > 0); + fflush(stdout); + if (stop) + break; + } + + snd_seq_close(seq); + return 0; +} -- libgit2 0.21.2