1import { CameraType, ImageType } from './Camera.types';
2
3// https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackConstraints/aspectRatio
4export const VIDEO_ASPECT_RATIOS = {
5  '3840x2160': 3840 / 2160,
6  '1920x1080': 1920 / 1080,
7  '1280x720': 1280 / 720,
8  '640x480': 640 / 480,
9  '352x288': 352 / 288,
10};
11
12export const PictureSizes = Object.keys(VIDEO_ASPECT_RATIOS);
13
14export const ImageTypeFormat = {
15  [ImageType.jpg]: 'image/jpeg',
16  [ImageType.png]: 'image/png',
17};
18
19export const MinimumConstraints: MediaStreamConstraints = {
20  audio: false,
21  video: true,
22};
23
24export const CameraTypeToFacingMode = {
25  [CameraType.front]: 'user',
26  [CameraType.back]: 'environment',
27};
28
29export const FacingModeToCameraType = {
30  user: CameraType.front,
31  environment: CameraType.back,
32};
33