hass-browser_mod/js/camera.js

47 lines
1.4 KiB
JavaScript

export const BrowserModCameraMixin = (C) => class extends C {
setup_camera() {
console.log("Starting camera")
if(this._video) return;
this._video = document.createElement("video");
this._video.autoplay = true;
this._video.playsInline = true;
this._video.style.display = "none";
this._canvas = document.createElement("canvas");
this._canvas.style.display = "none";
document.body.appendChild(this._video);
document.body.appendChild(this._canvas);
if(!navigator.mediaDevices) return;
console.log("Starting devices")
navigator.mediaDevices.getUserMedia({video: true, audio: false}).then((stream) => {
this._video.srcObject = stream;
this._video.play();
this.update_camera();
})
this._camera_framerate = 2;
window.addEventListener("click", () => this._video.play(), {once: true});
}
update_camera() {
this._canvas.width = this._video.videoWidth;
this._canvas.height = this._video.videoHeight;
const context = this._canvas.getContext('2d');
context.drawImage(this._video, 0, 0, this._video.videoWidth, this._video.videoHeight);
this.sendUpdate({
camera: this._canvas.toDataURL('image/jpeg'),
});
setTimeout(() => this.update_camera(), Math.round(1000 / this._camera_framerate));
}
}