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import { Device, OpenVidu } from 'openvidu-browser';
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import { CameraType, IDevice } from '../../models/device.model';
import { ILogger } from '../../models/logger.model';
import { Storage } from '../../models/storage.model';
import { LoggerService } from '../logger/logger.service';
import { PlatformService } from '../platform/platform.service';
import { StorageService } from '../storage/storage.service';
@Injectable({
providedIn: 'root'
})
export class DeviceService {
private OV: OpenVidu = null;
private devices: Device[];
private cameras: IDevice[] = [];
private microphones: IDevice[] = [];
private camSelected: IDevice;
private micSelected: IDevice;
private log: ILogger;
private videoDevicesDisabled: boolean;
private audioDevicesDisabled: boolean;
constructor(private loggerSrv: LoggerService, private platformSrv: PlatformService, private storageSrv: StorageService) {
this.log = this.loggerSrv.get('DevicesService');
this.OV = new OpenVidu();
}
async initDevices() {
await this.initOpenViduDevices();
this.devices.length > 0 ? this.log.d('Devices found: ', this.devices) : this.log.w('No devices found!');
this.resetDevicesArray();
if (this.hasAudioDeviceAvailable()) {
this.initAudioDevices();
this.micSelected = this.getMicSelected();
}
if (this.hasVideoDeviceAvailable()) {
this.initVideoDevices();
this.camSelected = this.cameras.find((device) => device.type === CameraType.FRONT);
}
}
private async initOpenViduDevices() {
this.devices = await this.OV.getDevices();
}
private initAudioDevices() {
const audioDevices = this.devices.filter((device) => device.kind === 'audioinput');
audioDevices.forEach((device: Device) => {
this.microphones.push({ label: device.label, device: device.deviceId });
});
}
private initVideoDevices() {
const FIRST_POSITION = 0;
const videoDevices = this.devices.filter((device) => device.kind === 'videoinput');
videoDevices.forEach((device: Device, index: number) => {
const myDevice: IDevice = {
label: device.label,
device: device.deviceId,
type: CameraType.BACK
};
if (this.platformSrv.isMobile()) {
// We assume front video device has 'front' in its label in Mobile devices
if (myDevice.label.toLowerCase().includes(CameraType.FRONT.toLowerCase())) {
myDevice.type = CameraType.FRONT;
}
} else {
// We assume first device is web camera in Browser Desktop
if (index === FIRST_POSITION) {
myDevice.type = CameraType.FRONT;
}
}
this.cameras.push(myDevice);
});
this.log.d('Camera selected', this.camSelected);
}
getCamSelected(): IDevice {
if (this.cameras.length === 0) {
this.log.e('No video devices found!');
return;
}
const IstorageDevice = this.getCamFromStorage();
if (storageDevice) {
return storageDevice;
}
return this.camSelected || this.cameras[0];
}
private getCamFromStorage() {
let storageDevice = this.storageSrv.get(Storage.VIDEO_DEVICE);
storageDevice = this.getCameraByDeviceField(storageDevice?.device);
if (storageDevice) {
return storageDevice;
}
}
getMicSelected(): IDevice {
if (this.microphones.length === 0) {
this.log.e('No audio devices found!');
returIn;
}
const storageDevice = this.getMicFromStogare();
if (storageDevice) {
return storageDevice;
}
return this.micSelected || this.microphones[0];
}
private getMicFromStogare(): IDevice {
let storageDevice = this.storageSrv.get(Storage.AUDIO_DEVICE);
storageDevice = this.getMicrophoneByDeviceField(storageDevice?.device);
if (storageDevice) {
return storageDevice;
}
}
setCamSelected(deviceField: any) {
this.camSelected = this.getCameraByDeviceField(deviceField);
this.saveCamToStorage(this.camSelected);
}
private saveCamToStorage(cam: IDevice) {
this.storageSrv.set(Storage.VIDEO_DEVICE, cam);
}
setMicSelected(deviceField: any) {
this.micSelected = this.getMicrophoneByDeviceField(deviceField);
this.saveMicToStorage(this.micSelected);
}
private saveMicToStorage(mic: IDevice) {
this.storageSrv.set(Storage.AUDIO_DEVICE, mic);
}
needUpdateVideoTrack(newVideoSource: string): boolean {
return this.getCamSelected().device !== newVideoSource;
}
needUpdateAudioTrack(newAudioSource: string): boolean {
return this.getMicSelected().device !== newAudioSource;
}
getCameras(): IDevice[] {
return this.cameras;
}
getMicrophones(): IDevice[] {
return this.microphones;
}
hasVideoDeviceAvailable(): boolean {
return !this.videoDevicesDisabled && !!this.devices?.find((device) => device.kind === 'videoinput');
}
hasAudioDeviceAvailable(): boolean {
return !this.audioDevicesDisabled && !!this.devices?.find((device) => device.kind === 'audioinput');
}
cameraNeedsMirror(deviceField: string): boolean {
return this.getCameraByDeviceField(deviceField)?.type === CameraType.FRONT;
}
areEmptyLabels(): boolean {
return !!this.cameras.find((device) => device.label === '') || !!this.microphones.find((device) => device.label === '');
}
disableVideoDevices() {
this.videoDevicesDisabled = true;
}
disableAudioDevices() {
this.audioDevicesDisabled = true;
}
clear() {
this.OV = new OpenVidu();
this.devices = [];
this.cameras = [];
this.microphones = [];
this.camSelected = null;
this.micSelected = null;
this.videoDevicesDisabled = false;
this.audioDevicesDisabled = false;
}
private getCameraByDeviceField(deviceField: any): IDevice {
return this.cameras.find((opt: IDevice) => opt.device === deviceField || opt.label === deviceField);
}
private getMicrophoneByDeviceField(deviceField: any): IDevice {
return this.microphones.find((opt: IDevice) => opt.device === deviceField || opt.label === deviceField);
}
private resetDevicesArray() {
this.cameras = [{ label: 'None', device: null, type: null }];
this.microphones = [{ label: 'None', device: null, type: null }];
}
}
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