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File size: 11,275 Bytes
fce2839 8dea023 1d6537b fce2839 37a56b3 fce2839 37a56b3 fce2839 8dea023 fce2839 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 | <!DOCTYPE html>
<html>
<head>
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: transparent; font-family: -apple-system, 'Inter', sans-serif; }
#container { width: 100%; position: relative; border-radius: 12px; overflow: hidden; background: #0a0a1a; }
video {
width: 100%; display: block;
border-radius: 12px;
background: #0a0a1a;
min-height: 480px;
max-height: 680px;
object-fit: cover;
}
#overlay {
position: absolute; top: 10px; left: 10px;
display: flex; gap: 8px; align-items: center; z-index: 10;
}
.badge {
padding: 5px 12px; border-radius: 8px; font-size: 12px;
font-weight: 700; letter-spacing: 0.5px;
backdrop-filter: blur(4px);
}
.badge-live { background: rgba(255,50,50,0.9); color: white; animation: pulse 1.5s infinite; }
.badge-ready { background: rgba(100,100,100,0.85); color: #ddd; }
.badge-ended { background: rgba(0,180,100,0.85); color: white; }
.badge-timer { background: rgba(0,0,0,0.7); color: #00D4FF; font-variant-numeric: tabular-nums; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
#controls { text-align: center; margin-top: 12px; }
button {
padding: 12px 32px; border: none; border-radius: 12px;
font-size: 15px; font-weight: 700; cursor: pointer;
transition: all 0.2s; letter-spacing: 0.5px;
}
#startBtn {
background: linear-gradient(90deg, #9B6FCE, #6C63FF);
color: white; box-shadow: 0 4px 15px rgba(108,99,255,0.3);
}
#startBtn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(108,99,255,0.4); }
#stopBtn {
background: linear-gradient(90deg, #FF4444, #CC2200);
color: white; display: none;
box-shadow: 0 4px 15px rgba(255,68,68,0.3);
}
#stopBtn:hover { transform: translateY(-1px); }
#errorMsg {
color: #FF6B6B; font-size: 13px; margin-top: 8px;
display: none; text-align: center;
}
</style>
</head>
<body>
<div id="container">
<video id="video" autoplay playsinline muted></video>
<div id="overlay">
<span id="statusBadge" class="badge badge-ready">READY</span>
<span id="timerBadge" class="badge badge-timer" style="display:none">60s</span>
</div>
</div>
<div id="controls">
<button id="startBtn">▶ START SESSION</button>
<button id="stopBtn">⏹ STOP & VIEW REPORT</button>
</div>
<div id="errorMsg"></div>
<canvas id="canvas" style="display:none"></canvas>
<script>
// ── Streamlit Component Protocol ────────────────────────────────
function sendToStreamlit(type, data) {
window.parent.postMessage({ isStreamlitMessage: true, type: type, ...data }, "*");
}
function setComponentValue(value) {
sendToStreamlit("streamlit:setComponentValue", { value: value });
}
function setFrameHeight(height) {
sendToStreamlit("streamlit:setFrameHeight", { height: height });
}
function componentReady() {
sendToStreamlit("streamlit:componentReady", { apiVersion: 1 });
}
// ── Persistent State (survives Streamlit re-renders) ────────────
if (!window._ws) {
window._ws = {
stream: null,
capturing: false,
frameInterval: null,
audioRecorder: null,
audioInterval: null,
startTime: 0,
timerInterval: null,
frameCount: 0,
};
}
const S = window._ws;
// ── DOM Elements ────────────────────────────────────────────────
const video = document.getElementById('video');
const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');
const statusBadge = document.getElementById('statusBadge');
const timerBadge = document.getElementById('timerBadge');
const startBtn = document.getElementById('startBtn');
const stopBtn = document.getElementById('stopBtn');
const errorMsg = document.getElementById('errorMsg');
// ── Restore UI if already capturing (after Streamlit re-render) ─
if (S.capturing && S.stream) {
video.srcObject = S.stream;
statusBadge.textContent = '\u25CF LIVE';
statusBadge.className = 'badge badge-live';
timerBadge.style.display = '';
startBtn.style.display = 'none';
stopBtn.style.display = '';
}
// ── Start Capture ───────────────────────────────────────────────
startBtn.onclick = async function() {
errorMsg.style.display = 'none';
try {
S.stream = await navigator.mediaDevices.getUserMedia({
video: { width: { ideal: 640 }, height: { ideal: 480 }, facingMode: 'user' },
audio: true
});
video.srcObject = S.stream;
S.capturing = true;
S.startTime = Date.now();
S.frameCount = 0;
canvas.width = 640;
canvas.height = 480;
// Capture + send a video frame every 2 seconds
captureAndSend(); // immediate first frame
S.frameInterval = setInterval(captureAndSend, 2000);
// Audio: record 5-second chunks via MediaRecorder (longer = better STT)
try {
const audioTrack = S.stream.getAudioTracks()[0];
if (audioTrack) {
const audioStream = new MediaStream([audioTrack]);
startAudioChunk(audioStream);
S.audioInterval = setInterval(function() {
if (S.audioRecorder && S.audioRecorder.state === 'recording') {
S.audioRecorder.stop();
startAudioChunk(audioStream);
}
}, 5000);
}
} catch(ae) { console.log('[Webcam] Audio setup error:', ae); }
// Timer countdown
updateTimer();
S.timerInterval = setInterval(updateTimer, 1000);
// UI update
statusBadge.textContent = '\u25CF LIVE';
statusBadge.className = 'badge badge-live';
timerBadge.style.display = '';
startBtn.style.display = 'none';
stopBtn.style.display = '';
setComponentValue({ type: 'started', ts: Date.now() });
// Auto-stop after 62 seconds (small buffer)
setTimeout(function() { if (S.capturing) stopCapture(); }, 62000);
} catch(err) {
errorMsg.textContent = 'Camera/mic access denied: ' + err.message;
errorMsg.style.display = 'block';
setComponentValue({ type: 'error', message: err.message });
}
};
// ── Stop Capture ────────────────────────────────────────────────
stopBtn.onclick = function() { stopCapture(); };
function stopCapture() {
S.capturing = false;
if (S.frameInterval) { clearInterval(S.frameInterval); S.frameInterval = null; }
if (S.audioInterval) { clearInterval(S.audioInterval); S.audioInterval = null; }
if (S.timerInterval) { clearInterval(S.timerInterval); S.timerInterval = null; }
if (S.audioRecorder && S.audioRecorder.state === 'recording') {
try { S.audioRecorder.stop(); } catch(e) {}
}
if (S.stream) {
S.stream.getTracks().forEach(function(t) { t.stop(); });
S.stream = null;
}
video.srcObject = null;
statusBadge.textContent = 'SESSION ENDED';
statusBadge.className = 'badge badge-ended';
timerBadge.style.display = 'none';
startBtn.style.display = 'none';
stopBtn.style.display = 'none';
setComponentValue({ type: 'stopped', ts: Date.now() });
}
// ── Frame Capture ───────────────────────────────────────────────
function captureAndSend() {
if (!S.capturing || video.readyState < 2) return;
canvas.width = video.videoWidth || 640;
canvas.height = video.videoHeight || 480;
ctx.drawImage(video, 0, 0);
var dataUrl = canvas.toDataURL('image/jpeg', 0.65);
S.frameCount++;
setComponentValue({
type: 'frame',
data: dataUrl,
frame: S.frameCount,
ts: Date.now()
});
}
// ── Audio Recording ─────────────────────────────────────────────
function startAudioChunk(audioStream) {
try {
var mimeType = 'audio/webm;codecs=opus';
if (!MediaRecorder.isTypeSupported(mimeType)) {
mimeType = 'audio/webm';
}
if (!MediaRecorder.isTypeSupported(mimeType)) {
mimeType = ''; // browser default
}
S.audioRecorder = new MediaRecorder(audioStream, mimeType ? { mimeType: mimeType } : {});
S.audioRecorder.ondataavailable = function(e) {
if (e.data.size > 0 && S.capturing) {
var reader = new FileReader();
reader.onload = function() {
setComponentValue({
type: 'audio',
data: reader.result,
ts: Date.now()
});
};
reader.readAsDataURL(e.data);
}
};
S.audioRecorder.start();
} catch(e) { console.log('[Webcam] MediaRecorder error:', e); }
}
// ── Timer ───────────────────────────────────────────────────────
function updateTimer() {
if (!S.capturing) return;
var elapsed = Math.floor((Date.now() - S.startTime) / 1000);
var remaining = Math.max(0, 60 - elapsed);
timerBadge.textContent = remaining + 's';
if (remaining <= 10) {
timerBadge.style.color = '#FF4444';
}
if (remaining <= 0) { stopCapture(); }
}
// ── Handle Streamlit re-render messages ─────────────────────────
window.addEventListener("message", function(event) {
if (event.data && event.data.type === "streamlit:render") {
setFrameHeight(document.body.scrollHeight || 520);
}
});
// ── Init ────────────────────────────────────────────────────────
setFrameHeight(620);
componentReady();
</script>
</body>
</html>
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