void soundio_destroy_devices_info(SoundIoDevicesInfo *devices_info) {
if (!devices_info)
return;
for (int i = 0; i < devices_info->input_devices.length; i += 1)
soundio_device_unref(devices_info->input_devices.at(i));
for (int i = 0; i < devices_info->output_devices.length; i += 1)
soundio_device_unref(devices_info->output_devices.at(i));
devices_info->input_devices.deinit();
devices_info->output_devices.deinit();
free(devices_info);
}
static int init_playback_node(AudioGraph *ag) {
MixerLine *master_mixer_line = ag->project->mixer_line_list.at(0);
Effect *first_effect = master_mixer_line->effects.at(0);
assert(first_effect->effect_type == EffectTypeSend);
EffectSend *effect_send = &first_effect->effect.send;
assert(effect_send->send_type == EffectSendTypeDevice);
EffectSendDevice *send_device = &effect_send->send.device;
SoundIoDevice *audio_device = get_device_for_id(ag, (DeviceId)send_device->device_id);
if (!audio_device) {
return GenesisErrorDeviceNotFound;
}
GenesisNodeDescriptor *playback_node_descr;
int err;
if ((err = genesis_audio_device_create_node_descriptor(ag->pipeline,
audio_device, &playback_node_descr)))
{
return err;
}
assert(!ag->master_node);
ag->master_node = ok_mem(genesis_node_descriptor_create_node(playback_node_descr));
soundio_device_unref(audio_device);
return 0;
}
void soundio_instream_destroy(struct SoundIoInStream *instream) {
if (!instream)
return;
SoundIoInStreamPrivate *is = (SoundIoInStreamPrivate *)instream;
SoundIo *soundio = instream->device->soundio;
SoundIoPrivate *si = (SoundIoPrivate *)soundio;
if (si->instream_destroy)
si->instream_destroy(si, is);
soundio_device_unref(instream->device);
free(is);
}
void soundio_outstream_destroy(SoundIoOutStream *outstream) {
if (!outstream)
return;
SoundIoOutStreamPrivate *os = (SoundIoOutStreamPrivate *)outstream;
SoundIo *soundio = outstream->device->soundio;
SoundIoPrivate *si = (SoundIoPrivate *)soundio;
if (si->outstream_destroy)
si->outstream_destroy(si, os);
soundio_device_unref(outstream->device);
free(os);
}
static SoundIoDevice *get_device_for_id(AudioGraph *ag, DeviceId device_id) {
assert(device_id >= 1);
assert(device_id < device_id_count());
SettingsFileDeviceId *sf_device_id = &ag->settings_file->device_designations.at(device_id);
if (sf_device_id->backend == SoundIoBackendNone)
return genesis_get_default_output_device(ag->pipeline->context);
SoundIoDevice *device = genesis_find_output_device(ag->pipeline->context,
sf_device_id->backend, sf_device_id->device_id.raw(), sf_device_id->is_raw);
if (device) {
if (device->probe_error) {
soundio_device_unref(device);
return genesis_get_default_output_device(ag->pipeline->context);
}
return device;
}
return genesis_get_default_output_device(ag->pipeline->context);
}
static int refresh_devices_bare(SoundIoPrivate *si) {
SoundIo *soundio = &si->pub;
SoundIoJack *sij = &si->backend_data.jack;
if (sij->is_shutdown)
return SoundIoErrorBackendDisconnected;
SoundIoDevicesInfo *devices_info = allocate<SoundIoDevicesInfo>(1);
if (!devices_info)
return SoundIoErrorNoMem;
devices_info->default_output_index = -1;
devices_info->default_input_index = -1;
const char **port_names = jack_get_ports(sij->client, nullptr, nullptr, 0);
if (!port_names) {
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
SoundIoList<SoundIoJackClient> clients = {0};
const char **port_name_ptr = port_names;
for (; *port_name_ptr; port_name_ptr += 1) {
const char *client_and_port_name = *port_name_ptr;
int client_and_port_name_len = strlen(client_and_port_name);
jack_port_t *jport = jack_port_by_name(sij->client, client_and_port_name);
if (!jport) {
// This refresh devices scan is already outdated. Just give up and
// let refresh_devices be called again.
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorInterrupted;
}
int flags = jack_port_flags(jport);
const char *port_type = jack_port_type(jport);
if (strcmp(port_type, JACK_DEFAULT_AUDIO_TYPE) != 0) {
// we don't know how to support such a port
continue;
}
SoundIoDeviceAim aim = (flags & JackPortIsInput) ?
SoundIoDeviceAimOutput : SoundIoDeviceAimInput;
bool is_physical = flags & JackPortIsPhysical;
const char *client_name = nullptr;
const char *port_name = nullptr;
int client_name_len;
int port_name_len;
split_str(client_and_port_name, client_and_port_name_len, ':',
&client_name, &client_name_len, &port_name, &port_name_len);
if (!client_name || !port_name) {
// device does not have colon, skip it
continue;
}
SoundIoJackClient *client = find_or_create_client(&clients, aim, is_physical,
client_name, client_name_len);
if (!client) {
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
if (client->port_count >= SOUNDIO_MAX_CHANNELS) {
// we hit the channel limit, skip the leftovers
continue;
}
SoundIoJackPort *port = &client->ports[client->port_count++];
port->full_name = client_and_port_name;
port->full_name_len = client_and_port_name_len;
port->name = port_name;
port->name_len = port_name_len;
port->channel_id = soundio_parse_channel_id(port_name, port_name_len);
jack_latency_callback_mode_t latency_mode = (aim == SoundIoDeviceAimOutput) ?
JackPlaybackLatency : JackCaptureLatency;
jack_port_get_latency_range(jport, latency_mode, &port->latency_range);
}
for (int i = 0; i < clients.length; i += 1) {
SoundIoJackClient *client = &clients.at(i);
if (client->port_count <= 0)
continue;
SoundIoDevicePrivate *dev = allocate<SoundIoDevicePrivate>(1);
if (!dev) {
jack_free(port_names);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
SoundIoDevice *device = &dev->pub;
SoundIoDeviceJack *dj = &dev->backend_data.jack;
int description_len = client->name_len + 3 + 2 * client->port_count;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
description_len += port->name_len;
}
dev->destruct = destruct_device;
device->ref_count = 1;
device->soundio = soundio;
device->is_raw = false;
device->aim = client->aim;
device->id = soundio_str_dupe(client->name, client->name_len);
device->name = allocate<char>(description_len);
device->current_format = SoundIoFormatFloat32NE;
device->sample_rate_count = 1;
device->sample_rates = &dev->prealloc_sample_rate_range;
device->sample_rates[0].min = sij->sample_rate;
device->sample_rates[0].max = sij->sample_rate;
device->sample_rate_current = sij->sample_rate;
device->software_latency_current = sij->period_size / (double) sij->sample_rate;
device->software_latency_min = sij->period_size / (double) sij->sample_rate;
device->software_latency_max = sij->period_size / (double) sij->sample_rate;
dj->port_count = client->port_count;
dj->ports = allocate<SoundIoDeviceJackPort>(dj->port_count);
if (!device->id || !device->name || !dj->ports) {
jack_free(port_names);
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
SoundIoDeviceJackPort *djp = &dj->ports[port_index];
djp->full_name = soundio_str_dupe(port->full_name, port->full_name_len);
djp->full_name_len = port->full_name_len;
djp->channel_id = port->channel_id;
djp->latency_range = port->latency_range;
if (!djp->full_name) {
jack_free(port_names);
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
}
memcpy(device->name, client->name, client->name_len);
memcpy(&device->name[client->name_len], ": ", 2);
int index = client->name_len + 2;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
memcpy(&device->name[index], port->name, port->name_len);
index += port->name_len;
if (port_index + 1 < client->port_count) {
memcpy(&device->name[index], ", ", 2);
index += 2;
}
}
device->current_layout.channel_count = client->port_count;
bool any_invalid = false;
for (int port_index = 0; port_index < client->port_count; port_index += 1) {
SoundIoJackPort *port = &client->ports[port_index];
device->current_layout.channels[port_index] = port->channel_id;
any_invalid = any_invalid || (port->channel_id == SoundIoChannelIdInvalid);
}
if (any_invalid) {
const struct SoundIoChannelLayout *layout = soundio_channel_layout_get_default(client->port_count);
if (layout)
device->current_layout = *layout;
} else {
soundio_channel_layout_detect_builtin(&device->current_layout);
}
device->layout_count = 1;
device->layouts = &device->current_layout;
device->format_count = 1;
device->formats = &dev->prealloc_format;
device->formats[0] = device->current_format;
SoundIoList<SoundIoDevice *> *device_list;
if (device->aim == SoundIoDeviceAimOutput) {
device_list = &devices_info->output_devices;
if (devices_info->default_output_index < 0 && client->is_physical)
devices_info->default_output_index = device_list->length;
} else {
assert(device->aim == SoundIoDeviceAimInput);
device_list = &devices_info->input_devices;
if (devices_info->default_input_index < 0 && client->is_physical)
devices_info->default_input_index = device_list->length;
}
if (device_list->append(device)) {
soundio_device_unref(device);
soundio_destroy_devices_info(devices_info);
return SoundIoErrorNoMem;
}
}
jack_free(port_names);
soundio_destroy_devices_info(si->safe_devices_info);
si->safe_devices_info = devices_info;
return 0;
}
AudioSoundIo::AudioSoundIo( bool & outSuccessful, Mixer * _mixer ) :
AudioDevice( tLimit<ch_cnt_t>(
ConfigManager::inst()->value( "audiosoundio", "channels" ).toInt(), DEFAULT_CHANNELS, SURROUND_CHANNELS ),
_mixer )
{
outSuccessful = false;
m_soundio = NULL;
m_outstream = NULL;
m_disconnectErr = 0;
m_outBufFrameIndex = 0;
m_outBufFramesTotal = 0;
m_soundio = soundio_create();
if (!m_soundio)
{
fprintf(stderr, "Unable to initialize soundio: out of memory\n");
return;
}
m_soundio->app_name = "LMMS";
m_soundio->userdata = this;
m_soundio->on_backend_disconnect = staticOnBackendDisconnect;
const QString& configBackend = ConfigManager::inst()->value( "audiosoundio", "backend" );
const QString& configDeviceId = ConfigManager::inst()->value( "audiosoundio", "out_device_id" );
const QString& configDeviceRaw = ConfigManager::inst()->value( "audiosoundio", "out_device_raw" );
int err;
int outDeviceCount = 0;
int backendCount = soundio_backend_count(m_soundio);
for (int i = 0; i < backendCount; i += 1)
{
SoundIoBackend backend = soundio_get_backend(m_soundio, i);
if (configBackend == soundio_backend_name(backend))
{
if ((err = soundio_connect_backend(m_soundio, backend)))
{
// error occurred, leave outDeviceCount 0
}
else
{
soundio_flush_events(m_soundio);
if (m_disconnectErr)
{
fprintf(stderr, "Unable to initialize soundio: %s\n", soundio_strerror(m_disconnectErr));
return;
}
outDeviceCount = soundio_output_device_count(m_soundio);
}
break;
}
}
if (outDeviceCount <= 0)
{
// try connecting to the default backend
if ((err = soundio_connect(m_soundio)))
{
fprintf(stderr, "Unable to initialize soundio: %s\n", soundio_strerror(err));
return;
}
soundio_flush_events(m_soundio);
if (m_disconnectErr)
{
fprintf(stderr, "Unable to initialize soundio: %s\n", soundio_strerror(m_disconnectErr));
return;
}
outDeviceCount = soundio_output_device_count(m_soundio);
if (outDeviceCount <= 0)
{
fprintf(stderr, "Unable to initialize soundio: no devices found\n");
return;
}
}
int selected_device_index = soundio_default_output_device_index(m_soundio);
bool wantRaw = (configDeviceRaw == "yes");
for (int i = 0; i < outDeviceCount; i += 1)
{
SoundIoDevice *device = soundio_get_output_device(m_soundio, i);
bool isThisOne = (configDeviceId == device->id && wantRaw == device->is_raw);
soundio_device_unref(device);
if (isThisOne)
{
selected_device_index = i;
break;
}
}
SoundIoDevice *device = soundio_get_output_device(m_soundio, selected_device_index);
m_outstream = soundio_outstream_create(device);
soundio_device_unref(device);
if (!m_outstream)
{
fprintf(stderr, "Unable to initialize soundio: out of memory\n");
return;
}
int currentSampleRate = sampleRate();
int closestSupportedSampleRate = -1;
for (int i = 0; i < device->sample_rate_count; i += 1)
{
SoundIoSampleRateRange *range = &device->sample_rates[i];
if (range->min <= currentSampleRate && currentSampleRate <= range->max)
{
closestSupportedSampleRate = currentSampleRate;
break;
}
if (closestSupportedSampleRate == -1 ||
abs(range->max - currentSampleRate) < abs(closestSupportedSampleRate - currentSampleRate))
{
closestSupportedSampleRate = range->max;
}
}
if (closestSupportedSampleRate != currentSampleRate)
{
setSampleRate(closestSupportedSampleRate);
currentSampleRate = closestSupportedSampleRate;
}
m_outstream->name = "LMMS";
m_outstream->software_latency = (double)mixer()->framesPerPeriod() / (double)currentSampleRate;
m_outstream->userdata = this;
m_outstream->write_callback = staticWriteCallback;
m_outstream->error_callback = staticErrorCallback;
m_outstream->underflow_callback = staticUnderflowCallback;
m_outstream->sample_rate = currentSampleRate;
m_outstream->layout = *soundio_channel_layout_get_default(channels());
m_outstream->format = SoundIoFormatFloat32NE;
if ((err = soundio_outstream_open(m_outstream)))
{
fprintf(stderr, "Unable to initialize soundio: %s\n", soundio_strerror(err));
return;
}
fprintf(stderr, "Output device: '%s' backend: '%s'\n",
device->name, soundio_backend_name(m_soundio->current_backend));
outSuccessful = true;
}
static void source_info_callback(pa_context *pulse_context, const pa_source_info *info, int eol, void *userdata) {
struct SoundIoPrivate *si = (struct SoundIoPrivate *)userdata;
struct SoundIo *soundio = &si->pub;
struct SoundIoPulseAudio *sipa = &si->backend_data.pulseaudio;
int err;
if (eol) {
pa_threaded_mainloop_signal(sipa->main_loop, 0);
return;
}
if (sipa->device_query_err)
return;
struct SoundIoDevicePrivate *dev = ALLOCATE(struct SoundIoDevicePrivate, 1);
if (!dev) {
sipa->device_query_err = SoundIoErrorNoMem;
return;
}
struct SoundIoDevice *device = &dev->pub;
device->ref_count = 1;
device->soundio = soundio;
device->id = strdup(info->name);
device->name = strdup(info->description);
if (!device->id || !device->name) {
soundio_device_unref(device);
sipa->device_query_err = SoundIoErrorNoMem;
return;
}
device->sample_rate_current = info->sample_spec.rate;
// PulseAudio performs resampling, so any value is valid. Let's pick
// some reasonable min and max values.
device->sample_rate_count = 1;
device->sample_rates = &dev->prealloc_sample_rate_range;
device->sample_rates[0].min = soundio_int_min(SOUNDIO_MIN_SAMPLE_RATE, device->sample_rate_current);
device->sample_rates[0].max = soundio_int_max(SOUNDIO_MAX_SAMPLE_RATE, device->sample_rate_current);
device->current_format = from_pulseaudio_format(info->sample_spec);
// PulseAudio performs sample format conversion, so any PulseAudio
// value is valid.
if ((err = set_all_device_formats(device))) {
soundio_device_unref(device);
sipa->device_query_err = SoundIoErrorNoMem;
return;
}
set_from_pulseaudio_channel_map(info->channel_map, &device->current_layout);
// PulseAudio does channel layout remapping, so any channel layout is valid.
if ((err = set_all_device_channel_layouts(device))) {
soundio_device_unref(device);
sipa->device_query_err = SoundIoErrorNoMem;
return;
}
device->aim = SoundIoDeviceAimInput;
if (SoundIoListDevicePtr_append(&sipa->current_devices_info->input_devices, device)) {
soundio_device_unref(device);
sipa->device_query_err = SoundIoErrorNoMem;
return;
}
}
int main(int argc, char **argv) {
char *exe = argv[0];
enum SoundIoBackend backend = SoundIoBackendNone;
bool is_raw = false;
char *device_id = NULL;
for (int i = 1; i < argc; i += 1) {
char *arg = argv[i];
if (arg[0] == '-' && arg[1] == '-') {
if (strcmp(arg, "--raw") == 0) {
is_raw = true;
} else if (++i >= argc) {
return usage(exe);
} else if (strcmp(arg, "--device") == 0) {
device_id = argv[i];
} else if (strcmp(arg, "--backend") == 0) {
if (strcmp("dummy", argv[i]) == 0) {
backend = SoundIoBackendDummy;
} else if (strcmp("alsa", argv[i]) == 0) {
backend = SoundIoBackendAlsa;
} else if (strcmp("pulseaudio", argv[i]) == 0) {
backend = SoundIoBackendPulseAudio;
} else if (strcmp("jack", argv[i]) == 0) {
backend = SoundIoBackendJack;
} else if (strcmp("coreaudio", argv[i]) == 0) {
backend = SoundIoBackendCoreAudio;
} else if (strcmp("wasapi", argv[i]) == 0) {
backend = SoundIoBackendWasapi;
} else {
fprintf(stderr, "Invalid backend: %s\n", argv[i]);
return 1;
}
} else {
return usage(exe);
}
} else {
return usage(exe);
}
}
fprintf(stderr,
"Records for 3 seconds, sleeps for 3 seconds, then you should see at least\n"
"one buffer overflow message, then records for 3 seconds.\n"
"PulseAudio is not expected to pass this test.\n"
"CoreAudio is not expected to pass this test.\n"
"WASAPI is not expected to pass this test.\n");
if (!(soundio = soundio_create()))
panic("out of memory");
int err = (backend == SoundIoBackendNone) ?
soundio_connect(soundio) : soundio_connect_backend(soundio, backend);
if (err)
panic("error connecting: %s", soundio_strerror(err));
soundio_flush_events(soundio);
int selected_device_index = -1;
if (device_id) {
int device_count = soundio_input_device_count(soundio);
for (int i = 0; i < device_count; i += 1) {
struct SoundIoDevice *device = soundio_get_input_device(soundio, i);
if (strcmp(device->id, device_id) == 0 && device->is_raw == is_raw) {
selected_device_index = i;
break;
}
}
} else {
selected_device_index = soundio_default_input_device_index(soundio);
}
if (selected_device_index < 0) {
fprintf(stderr, "input device not found\n");
return 1;
}
struct SoundIoDevice *device = soundio_get_input_device(soundio, selected_device_index);
if (!device) {
fprintf(stderr, "out of memory\n");
return 1;
}
fprintf(stderr, "Input device: %s\n", device->name);
enum SoundIoFormat *fmt;
for (fmt = prioritized_formats; *fmt != SoundIoFormatInvalid; fmt += 1) {
if (soundio_device_supports_format(device, *fmt))
break;
}
if (*fmt == SoundIoFormatInvalid)
panic("incompatible sample format");
struct SoundIoInStream *instream = soundio_instream_create(device);
instream->format = *fmt;
instream->read_callback = read_callback;
instream->overflow_callback = overflow_callback;
if ((err = soundio_instream_open(instream)))
panic("unable to open device: %s", soundio_strerror(err));
fprintf(stderr, "OK format: %s\n", soundio_format_string(instream->format));
if ((err = soundio_instream_start(instream)))
panic("unable to start device: %s", soundio_strerror(err));
while (seconds_offset < seconds_end)
soundio_wait_events(soundio);
soundio_instream_destroy(instream);
soundio_device_unref(device);
soundio_destroy(soundio);
if (overflow_count > 0) {
fprintf(stderr, "OK test passed with %d overflow callbacks\n", overflow_count);
return 0;
} else {
fprintf(stderr, "FAIL no overflow callbacks received\n");
return 1;
}
}
//==============================================================================
// MAIN
//==============================================================================
int main(int argc,char **argv)
{
pthread_t test;
printf("SFemtoZ!\n");
int c;
while ((c = getopt (argc, argv, "t:v")) != -1)
switch (c)
{
case 't':
if(pthread_create(&test,NULL,thread_test,optarg))
{
printf("error thread test\n");
}
break;
case 'v':
verbose=TRUE;
break;
}
char sfzfile[50];
strcpy(sfzfile,USBPATH);
strcat(sfzfile,argv[optind]);
printf("Load SFZ: %s\n",sfzfile);
loadsfz(sfzfile);
//printsfz();
loadsounds();
int fd;
if(( fd = serialOpen("/dev/ttyAMA0",57600))<0)
{
printf("serialOpen ERROR:\n",strerror(errno));
return 1;
}
if(configuresoundio()!=0) return 1;
signal(SIGINT,exit_cli);
signal(SIGTERM,exit_cli);
run = TRUE;
while(run)
{
if(serialDataAvail(fd)>2)
{
int type=serialGetchar(fd);
while(type!=0x99 && type!= 0xB9) type=serialGetchar(fd);
int note=serialGetchar(fd);
int vel=serialGetchar(fd);
//printf("MIDI%i(%i,%i)\n",type,note,vel);
if(type==0x99) noteOn(note,vel);
else midiCC(note,vel);
}
// soundio_wait_events(soundio);
}
//FINISH
pthread_cancel(test);
soundio_outstream_destroy(outstream);
soundio_device_unref(device);
soundio_destroy(soundio);
serialClose(fd);
freesounds();
freesfz();
return 0;
}
int main(int argc, char **argv) {
char *exe = argv[0];
enum SoundIoBackend backend = SoundIoBackendNone;
char *device_id = NULL;
bool raw = false;
char *stream_name = NULL;
double latency = 0.0;
int sample_rate = 0;
for (int i = 1; i < argc; i += 1) {
char *arg = argv[i];
if (arg[0] == '-' && arg[1] == '-') {
if (strcmp(arg, "--raw") == 0) {
raw = true;
} else {
i += 1;
if (i >= argc) {
return usage(exe);
} else if (strcmp(arg, "--backend") == 0) {
if (strcmp(argv[i], "dummy") == 0) {
backend = SoundIoBackendDummy;
} else if (strcmp(argv[i], "alsa") == 0) {
backend = SoundIoBackendAlsa;
} else if (strcmp(argv[i], "pulseaudio") == 0) {
backend = SoundIoBackendPulseAudio;
} else if (strcmp(argv[i], "jack") == 0) {
backend = SoundIoBackendJack;
} else if (strcmp(argv[i], "coreaudio") == 0) {
backend = SoundIoBackendCoreAudio;
} else if (strcmp(argv[i], "wasapi") == 0) {
backend = SoundIoBackendWasapi;
} else {
fprintf(stderr, "Invalid backend: %s\n", argv[i]);
return 1;
}
} else if (strcmp(arg, "--device") == 0) {
device_id = argv[i];
} else if (strcmp(arg, "--name") == 0) {
stream_name = argv[i];
} else if (strcmp(arg, "--latency") == 0) {
latency = atof(argv[i]);
} else if (strcmp(arg, "--sample-rate") == 0) {
sample_rate = atoi(argv[i]);
} else {
return usage(exe);
}
}
} else {
return usage(exe);
}
}
struct SoundIo *soundio = soundio_create();
if (!soundio) {
fprintf(stderr, "out of memory\n");
return 1;
}
int err = (backend == SoundIoBackendNone) ?
soundio_connect(soundio) : soundio_connect_backend(soundio, backend);
if (err) {
fprintf(stderr, "Unable to connect to backend: %s\n", soundio_strerror(err));
return 1;
}
fprintf(stderr, "Backend: %s\n", soundio_backend_name(soundio->current_backend));
soundio_flush_events(soundio);
int selected_device_index = -1;
if (device_id) {
int device_count = soundio_output_device_count(soundio);
for (int i = 0; i < device_count; i += 1) {
struct SoundIoDevice *device = soundio_get_output_device(soundio, i);
bool select_this_one = strcmp(device->id, device_id) == 0 && device->is_raw == raw;
soundio_device_unref(device);
if (select_this_one) {
selected_device_index = i;
break;
}
}
} else {
selected_device_index = soundio_default_output_device_index(soundio);
}
if (selected_device_index < 0) {
fprintf(stderr, "Output device not found\n");
return 1;
}
struct SoundIoDevice *device = soundio_get_output_device(soundio, selected_device_index);
if (!device) {
fprintf(stderr, "out of memory\n");
return 1;
}
fprintf(stderr, "Output device: %s\n", device->name);
if (device->probe_error) {
fprintf(stderr, "Cannot probe device: %s\n", soundio_strerror(device->probe_error));
return 1;
}
struct SoundIoOutStream *outstream = soundio_outstream_create(device);
if (!outstream) {
fprintf(stderr, "out of memory\n");
return 1;
}
outstream->write_callback = write_callback;
outstream->underflow_callback = underflow_callback;
outstream->name = stream_name;
outstream->software_latency = latency;
outstream->sample_rate = sample_rate;
if (soundio_device_supports_format(device, SoundIoFormatFloat32NE)) {
outstream->format = SoundIoFormatFloat32NE;
write_sample = write_sample_float32ne;
} else if (soundio_device_supports_format(device, SoundIoFormatFloat64NE)) {
outstream->format = SoundIoFormatFloat64NE;
write_sample = write_sample_float64ne;
} else if (soundio_device_supports_format(device, SoundIoFormatS32NE)) {
outstream->format = SoundIoFormatS32NE;
write_sample = write_sample_s32ne;
} else if (soundio_device_supports_format(device, SoundIoFormatS16NE)) {
outstream->format = SoundIoFormatS16NE;
write_sample = write_sample_s16ne;
} else {
fprintf(stderr, "No suitable device format available.\n");
return 1;
}
if ((err = soundio_outstream_open(outstream))) {
fprintf(stderr, "unable to open device: %s", soundio_strerror(err));
return 1;
}
fprintf(stderr, "Software latency: %f\n", outstream->software_latency);
fprintf(stderr,
"'p\\n' - pause\n"
"'u\\n' - unpause\n"
"'P\\n' - pause from within callback\n"
"'c\\n' - clear buffer\n"
"'q\\n' - quit\n");
if (outstream->layout_error)
fprintf(stderr, "unable to set channel layout: %s\n", soundio_strerror(outstream->layout_error));
if ((err = soundio_outstream_start(outstream))) {
fprintf(stderr, "unable to start device: %s\n", soundio_strerror(err));
return 1;
}
for (;;) {
soundio_flush_events(soundio);
int c = getc(stdin);
if (c == 'p') {
fprintf(stderr, "pausing result: %s\n",
soundio_strerror(soundio_outstream_pause(outstream, true)));
} else if (c == 'P') {
want_pause = true;
} else if (c == 'u') {
want_pause = false;
fprintf(stderr, "unpausing result: %s\n",
soundio_strerror(soundio_outstream_pause(outstream, false)));
} else if (c == 'c') {
fprintf(stderr, "clear buffer result: %s\n",
soundio_strerror(soundio_outstream_clear_buffer(outstream)));
} else if (c == 'q') {
break;
} else if (c == '\r' || c == '\n') {
// ignore
} else {
fprintf(stderr, "Unrecognized command: %c\n", c);
}
}
soundio_outstream_destroy(outstream);
soundio_device_unref(device);
soundio_destroy(soundio);
return 0;
}
