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export function get_devices(): Promise<MediaDeviceInfo[]> {
return navigator.mediaDevices.enumerateDevices();
}
export function handle_error(error: string): void {
throw new Error(error);
}
export function set_local_stream(
local_stream: MediaStream | null,
video_source: HTMLVideoElement
): void {
video_source.srcObject = local_stream;
video_source.muted = true;
video_source.play();
}
export async function get_video_stream(
include_audio: boolean,
video_source: HTMLVideoElement,
device_id?: string
): Promise<MediaStream> {
const size = {
width: { ideal: 1920 },
height: { ideal: 1440 }
};
const constraints = {
video: device_id ? { deviceId: { exact: device_id }, ...size } : size,
audio: include_audio
};
return navigator.mediaDevices
.getUserMedia(constraints)
.then((local_stream: MediaStream) => {
set_local_stream(local_stream, video_source);
return local_stream;
});
}
export function set_available_devices(
devices: MediaDeviceInfo[]
): MediaDeviceInfo[] {
const cameras = devices.filter(
(device: MediaDeviceInfo) => device.kind === "videoinput"
);
return cameras;
}
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