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// This refresh devices scan is already outdated.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;
}
