File size: 5,642 Bytes
ff9325e |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 |
export function LCMLive(webcamVideo, liveImage) {
let websocket: WebSocket;
async function start() {
return new Promise((resolve, reject) => {
const websocketURL = `${window.location.protocol === "https:" ? "wss" : "ws"
}:${window.location.host}/ws`;
const socket = new WebSocket(websocketURL);
socket.onopen = () => {
console.log("Connected to websocket");
};
socket.onclose = () => {
console.log("Disconnected from websocket");
stop();
resolve({ "status": "disconnected" });
};
socket.onerror = (err) => {
console.error(err);
reject(err);
};
socket.onmessage = (event) => {
const data = JSON.parse(event.data);
switch (data.status) {
case "success":
break;
case "start":
const userId = data.userId;
initVideoStream(userId);
break;
case "timeout":
stop();
resolve({ "status": "timeout" });
case "error":
stop();
reject(data.message);
}
};
websocket = socket;
})
}
function switchCamera() {
const constraints = {
audio: false,
video: { width: 1024, height: 1024, deviceId: mediaDevices[webcamsEl.value].deviceId }
};
navigator.mediaDevices
.getUserMedia(constraints)
.then((mediaStream) => {
webcamVideo.removeEventListener("timeupdate", videoTimeUpdateHandler);
webcamVideo.srcObject = mediaStream;
webcamVideo.onloadedmetadata = () => {
webcamVideo.play();
webcamVideo.addEventListener("timeupdate", videoTimeUpdateHandler);
};
})
.catch((err) => {
console.error(`${err.name}: ${err.message}`);
});
}
async function videoTimeUpdateHandler() {
const dimension = getValue("input[name=dimension]:checked");
const [WIDTH, HEIGHT] = JSON.parse(dimension);
const canvas = new OffscreenCanvas(WIDTH, HEIGHT);
const videoW = webcamVideo.videoWidth;
const videoH = webcamVideo.videoHeight;
const aspectRatio = WIDTH / HEIGHT;
const ctx = canvas.getContext("2d");
ctx.drawImage(webcamVideo, videoW / 2 - videoH * aspectRatio / 2, 0, videoH * aspectRatio, videoH, 0, 0, WIDTH, HEIGHT)
const blob = await canvas.convertToBlob({ type: "image/jpeg", quality: 1 });
websocket.send(blob);
websocket.send(JSON.stringify({
"seed": getValue("#seed"),
"prompt": getValue("#prompt"),
"guidance_scale": getValue("#guidance-scale"),
"strength": getValue("#strength"),
"steps": getValue("#steps"),
"lcm_steps": getValue("#lcm_steps"),
"width": WIDTH,
"height": HEIGHT,
"controlnet_scale": getValue("#controlnet_scale"),
"controlnet_start": getValue("#controlnet_start"),
"controlnet_end": getValue("#controlnet_end"),
"canny_low_threshold": getValue("#canny_low_threshold"),
"canny_high_threshold": getValue("#canny_high_threshold"),
"debug_canny": getValue("#debug_canny")
}));
}
let mediaDevices = [];
async function initVideoStream(userId) {
liveImage.src = `/stream/${userId}`;
await navigator.mediaDevices.enumerateDevices()
.then(devices => {
const cameras = devices.filter(device => device.kind === 'videoinput');
mediaDevices = cameras;
webcamsEl.innerHTML = "";
cameras.forEach((camera, index) => {
const option = document.createElement("option");
option.value = index;
option.innerText = camera.label;
webcamsEl.appendChild(option);
option.selected = index === 0;
});
webcamsEl.addEventListener("change", switchCamera);
})
.catch(err => {
console.error(err);
});
const constraints = {
audio: false,
video: { width: 1024, height: 1024, deviceId: mediaDevices[0].deviceId }
};
navigator.mediaDevices
.getUserMedia(constraints)
.then((mediaStream) => {
webcamVideo.srcObject = mediaStream;
webcamVideo.onloadedmetadata = () => {
webcamVideo.play();
webcamVideo.addEventListener("timeupdate", videoTimeUpdateHandler);
};
})
.catch((err) => {
console.error(`${err.name}: ${err.message}`);
});
}
async function stop() {
websocket.close();
navigator.mediaDevices.getUserMedia({ video: true }).then((mediaStream) => {
mediaStream.getTracks().forEach((track) => track.stop());
});
webcamVideo.removeEventListener("timeupdate", videoTimeUpdateHandler);
webcamsEl.removeEventListener("change", switchCamera);
webcamVideo.srcObject = null;
}
return {
start,
stop
}
} |