mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-10-29 05:40:25 -04:00
Major change to sequencer API.
The sequencer API is totally recoded with the style of "encapsulation" in other api. The structure becomes opaque and accessed only via functions. Other changes: - There is no longer group in client and port info. - snd_seq_query_subs_t is renamed to snd_seq_query_subscribe_t. - snd_seq_delete_port takes only the port id argument instead of port_info structure. - snd_seq_input/output_buffer_size are renamed as snd_seq_get_input/output_buffer_size. Similarly snd_seq_resize_input/output_buffer are renamed as snd_seq_set_input/output_buffer_size. - snd_seq_get_named_queue is renamed to snd_seq_query_named_queue. - Sync codes are removed temporarily from API. - Subscription conditions are accessed via the corresponding functions. convert_time is named now as time_update. - snd_seq_get/set_queue_owner are removed. Use snd_seq_get/set_queue_info instead. - Instrument put/get/remove structure is unified as snd_instr_header_t.
This commit is contained in:
Jaroslav Kysela
parent
d23ff765ad
commit
88e5e45151
20 changed files with 4410 additions and 1691 deletions
85
test/seq.c
85
test/seq.c
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@ -16,20 +16,19 @@
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#define HELPID_VERBOSE 1002
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#define HELPID_VERSION 1003
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snd_seq_system_info_t sysinfo;
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int max_clients;
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int max_ports;
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int max_queues;
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int debug = 0;
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int verbose = 0;
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void set_name(snd_seq_t *handle)
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{
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int err;
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snd_seq_client_info_t info;
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char name[64];
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bzero(&info, sizeof(info));
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info.client = snd_seq_client_id(handle);
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info.type = USER_CLIENT;
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snprintf(info.name, sizeof(info.name), "SeqUtil - %i", getpid());
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if ((err = snd_seq_set_client_info(handle, &info)) < 0) {
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sprintf(name, "SeqUtil - %i", getpid());
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if ((err = snd_seq_set_client_name(handle, name)) < 0) {
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fprintf(stderr, "Set client info error: %s\n", snd_strerror(err));
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exit(0);
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}
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@ -38,78 +37,88 @@ void set_name(snd_seq_t *handle)
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void system_info(snd_seq_t *handle)
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{
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int err;
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snd_seq_system_info_t *sysinfo;
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if ((err = snd_seq_system_info(handle, &sysinfo))<0) {
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snd_seq_system_info_alloca(&sysinfo);
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if ((err = snd_seq_system_info(handle, sysinfo))<0) {
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fprintf(stderr, "System info error: %s\n", snd_strerror(err));
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exit(0);
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}
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max_clients = snd_seq_system_info_get_clients(sysinfo);
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max_ports = snd_seq_system_info_get_ports(sysinfo);
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max_queues = snd_seq_system_info_get_ports(sysinfo);
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}
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void show_system_info(snd_seq_t *handle)
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{
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printf("System info\n");
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printf(" Max queues : %i\n", sysinfo.queues);
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printf(" Max clients : %i\n", sysinfo.clients);
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printf(" Max ports : %i\n", sysinfo.ports);
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printf(" Max queues : %i\n", max_queues);
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printf(" Max clients : %i\n", max_clients);
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printf(" Max ports : %i\n", max_ports);
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}
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void show_queue_status(snd_seq_t *handle, int queue)
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{
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int err, idx, min, max;
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snd_seq_queue_status_t status;
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snd_seq_queue_status_t *status;
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snd_seq_queue_status_alloca(&status);
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min = queue < 0 ? 0 : queue;
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max = queue < 0 ? sysinfo.queues : queue + 1;
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max = queue < 0 ? max_queues : queue + 1;
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for (idx = min; idx < max; idx++) {
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if ((err = snd_seq_get_queue_status(handle, idx, &status))<0) {
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if ((err = snd_seq_get_queue_status(handle, idx, status))<0) {
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if (err == -ENOENT)
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continue;
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fprintf(stderr, "Client %i info error: %s\n", idx, snd_strerror(err));
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exit(0);
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}
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printf("Queue %i info\n", status.queue);
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printf(" Tick : %u\n", status.tick);
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printf(" Realtime : %li.%li\n", status.time.tv_sec, status.time.tv_nsec);
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printf(" Flags : 0x%x\n", status.flags);
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printf("Queue %i info\n", snd_seq_queue_status_get_queue(status));
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printf(" Tick : %u\n", snd_seq_queue_status_get_tick_time(status));
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printf(" Realtime : %i.%i\n",
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snd_seq_queue_status_get_real_time(status)->tv_sec,
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snd_seq_queue_status_get_real_time(status)->tv_nsec);
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printf(" Flags : 0x%x\n", snd_seq_queue_status_get_status(status));
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}
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}
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void show_port_info(snd_seq_t *handle, int client, int port)
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{
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int err, idx, min, max;
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snd_seq_port_info_t info;
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snd_seq_port_info_t *info;
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snd_seq_port_info_alloca(&info);
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min = port < 0 ? 0 : port;
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max = port < 0 ? sysinfo.ports : port + 1;
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max = port < 0 ? max_ports : port + 1;
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for (idx = min; idx < max; idx++) {
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if ((err = snd_seq_get_any_port_info(handle, client, idx, &info))<0) {
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if ((err = snd_seq_get_any_port_info(handle, client, idx, info))<0) {
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if (err == -ENOENT)
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continue;
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fprintf(stderr, "Port %i/%i info error: %s\n", client, idx, snd_strerror(err));
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exit(0);
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}
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printf(" Port %i info\n", idx);
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printf(" Client : %i\n", info.client);
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printf(" Port : %i\n", info.port);
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printf(" Name : %s\n", info.name);
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printf(" Capability : 0x%x\n", info.capability);
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printf(" Type : 0x%x\n", info.type);
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printf(" Midi channels : %i\n", info.midi_channels);
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printf(" Synth voices : %i\n", info.synth_voices);
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printf(" Output subs : %i\n", info.write_use);
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printf(" Input subs : %i\n", info.read_use);
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printf(" Client : %i\n", snd_seq_port_info_get_client(info));
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printf(" Port : %i\n", snd_seq_port_info_get_port(info));
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printf(" Name : %s\n", snd_seq_port_info_get_name(info));
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printf(" Capability : 0x%x\n", snd_seq_port_info_get_capability(info));
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printf(" Type : 0x%x\n", snd_seq_port_info_get_type(info));
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//printf(" Midi channels : %i\n", info.midi_channels);
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//printf(" Synth voices : %i\n", info.synth_voices);
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printf(" Output subs : %i\n", snd_seq_port_info_get_write_use(info));
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printf(" Input subs : %i\n", snd_seq_port_info_get_read_use(info));
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}
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}
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void show_client_info(snd_seq_t *handle, int client)
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{
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int err, idx, min, max;
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snd_seq_client_info_t info;
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snd_seq_client_info_t *info;
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snd_seq_client_info_alloca(&info);
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min = client < 0 ? 0 : client;
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max = client < 0 ? sysinfo.clients : client + 1;
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max = client < 0 ? max_clients : client + 1;
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for (idx = min; idx < max; idx++) {
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if ((err = snd_seq_get_any_client_info(handle, idx, &info))<0) {
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if ((err = snd_seq_get_any_client_info(handle, idx, info))<0) {
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if (err == -ENOENT)
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continue;
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fprintf(stderr, "Client %i info error: %s\n", idx, snd_strerror(err));
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@ -117,9 +126,9 @@ void show_client_info(snd_seq_t *handle, int client)
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}
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printf("Client %i info\n", idx);
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if (verbose)
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printf(" Client : %i\n", info.client);
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printf(" Type : %s\n", info.type == KERNEL_CLIENT ? "kernel" : "user");
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printf(" Name : %s\n", info.name);
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printf(" Client : %i\n", snd_seq_client_info_get_client(info));
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printf(" Type : %s\n", snd_seq_client_info_get_type(info) == SND_SEQ_KERNEL_CLIENT ? "kernel" : "user");
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printf(" Name : %s\n", snd_seq_client_info_get_name(info));
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}
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}
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@ -190,7 +199,7 @@ int main(int argc, char *argv[])
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fprintf(stderr, "seq: Specify command...\n");
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return 0;
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}
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if ((err = snd_seq_open(&handle, SND_SEQ_OPEN))<0) {
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if ((err = snd_seq_open(&handle, "hw", SND_SEQ_OPEN_DUPLEX, 0))<0) {
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fprintf(stderr, "Open error: %s\n", snd_strerror(err));
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exit(0);
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}
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