notesvault/Vdio.html at main · pinknake/notesvault · GitHub

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<!DOCTYPE html>
<html>
<head>
  <title>📷 Bharat Camera</title>
  <style>
    body {
      text-align: center;
      font-family: sans-serif;
      background: #f0f0f0;
    }
    video, canvas {
      width: 90%;
      max-width: 400px;
      border-radius: 8px;
      margin: 10px 0;
    }
    select, button {
      padding: 10px;
      margin: 10px;
      font-size: 16px;
      border-radius: 5px;
    }
  </style>
</head>
<body>
  <h2>📸 Bharat Camera</h2>

  <select id="cameraList"></select><br>
  <video id="video" autoplay playsinline muted></video><br>

  <button onclick="startSelectedCamera()">🔄 Switch Camera</button>
  <button onclick="takePhoto()">📸 Capture</button>

  <canvas id="canvas" style="display:none;"></canvas>

  <script>
    const video = document.getElementById('video');
    const canvas = document.getElementById('canvas');
    const cameraList = document.getElementById('cameraList');
    let currentStream = null;
    let videoDevices = [];

    async function requestPermissionFirst() {
      try {
        // Dummy request to ensure permission dialog shows
        await navigator.mediaDevices.getUserMedia({ video: true });
      } catch (e) {
        alert("❌ Camera permission denied.");
      }
    }

    async function getCameras() {
      try {
        const devices = await navigator.mediaDevices.enumerateDevices();
        videoDevices = devices.filter(device => device.kind === 'videoinput');
        cameraList.innerHTML = '';
        videoDevices.forEach((device, index) => {
          const option = document.createElement('option');
          option.value = device.deviceId;
          option.text = device.label || `Camera ${index + 1}`;
          cameraList.appendChild(option);
        });
      } catch (err) {
        alert("Camera list error: " + err.message);
      }
    }

    async function startCamera(deviceId) {
      if (currentStream) {
        currentStream.getTracks().forEach(track => track.stop());
      }

      try {
        const stream = await navigator.mediaDevices.getUserMedia({
          video: { deviceId: { exact: deviceId } }
        });
        video.srcObject = stream;
        currentStream = stream;
        await video.play();
      } catch (err) {
        alert("❌ Camera not working: " + err.message);
        fallbackCamera();
      }
    }

    async function fallbackCamera() {
      try {
        const stream = await navigator.mediaDevices.getUserMedia({ video: true });
        video.srcObject = stream;
        currentStream = stream;
        await video.play();
      } catch (e) {
        alert("🚫 No camera available: " + e.message);
      }
    }

    function startSelectedCamera() {
      const selectedId = cameraList.value;
      if (selectedId) {
        startCamera(selectedId);
      }
    }

    function takePhoto() {
      canvas.width = video.videoWidth;
      canvas.height = video.videoHeight;
      const ctx = canvas.getContext('2d');
      ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
      canvas.style.display = 'block';
    }

    // Initialize
    (async () => {
      await requestPermissionFirst(); // ensure permission is asked first
      await getCameras();
      if (cameraList.options.length > 0) {
        await startCamera(cameraList.value);
      }
    })();
  </script>
</body>
</html>