+ device->display_name = name;
+}
+
+void AudioMixer::serialize_device(DeviceSpec device_spec, DeviceSpecProto *device_spec_proto)
+{
+ lock_guard<timed_mutex> lock(audio_mutex);
+ switch (device_spec.type) {
+ case InputSourceType::SILENCE:
+ device_spec_proto->set_type(DeviceSpecProto::SILENCE);
+ break;
+ case InputSourceType::CAPTURE_CARD:
+ device_spec_proto->set_type(DeviceSpecProto::CAPTURE_CARD);
+ device_spec_proto->set_index(device_spec.index);
+ device_spec_proto->set_display_name(video_cards[device_spec.index].display_name);
+ break;
+ case InputSourceType::ALSA_INPUT:
+ alsa_pool.serialize_device(device_spec.index, device_spec_proto);
+ break;
+ }
+}
+
+void AudioMixer::set_simple_input(unsigned card_index)
+{
+ InputMapping new_input_mapping;
+ InputMapping::Bus input;
+ input.name = "Main";
+ input.device.type = InputSourceType::CAPTURE_CARD;
+ input.device.index = card_index;
+ input.source_channel[0] = 0;
+ input.source_channel[1] = 1;
+
+ new_input_mapping.buses.push_back(input);
+
+ lock_guard<timed_mutex> lock(audio_mutex);
+ current_mapping_mode = MappingMode::SIMPLE;
+ set_input_mapping_lock_held(new_input_mapping);
+ fader_volume_db[0] = 0.0f;
+}
+
+unsigned AudioMixer::get_simple_input() const
+{
+ lock_guard<timed_mutex> lock(audio_mutex);
+ if (input_mapping.buses.size() == 1 &&
+ input_mapping.buses[0].device.type == InputSourceType::CAPTURE_CARD &&
+ input_mapping.buses[0].source_channel[0] == 0 &&
+ input_mapping.buses[0].source_channel[1] == 1) {
+ return input_mapping.buses[0].device.index;
+ } else {
+ return numeric_limits<unsigned>::max();
+ }