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client, client_and_port_name); if (!jport) { // This refresh devices scan is already outdated.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; }