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HTML 

              
                <div class="wrapper">
  <div class="sidebar">
    <div id="notification"></div>
    <table class="controls">
      <tr class="pan">
        <td for="rangeZoom">Pan: </td>
        <td><input type="number" id="rangePan" /></td>
      </tr>
      <tr class="tilt">
        <td for="rangeZoom">Tilt: </td>
        <td> <input type="number" id="rangeTilt" /></td>
      </tr>
      <tr class="zoom">
        <td for="rangeZoom">Zoom: </td>
        <td><input type="number" id="rangeZoom" /></td>
      </tr>
    </table>
  </div>

  <div class="content">
    <video id="video" autoplay>
      Your browser does not support the video tag.
    </video>
  </div>
</div>
!

CSS 

              
                body {
  margin: 0;
}

.wrapper {
  position: absolute;
  display: grid;
  width: 100%;
  height: 100%;
  grid-template-columns: max-content 1fr;

  .sidebar {
    display: grid;
    grid-template-rows: 20px 1fr;

    #notification {
      background-color: #ff964f;
      height: 30px;
      display: flex;
      justify-content: center;
      line-height: 30px;
      display: none;
    }

    .controls {
      padding: 15px;
    }
  }

  .content {
    position: relative;
    height: 100%;
    width: 100%;

    video {
      right: 0;
      position: absolute;
      height: 100vh;
    }
  }
}
!

JS 

              
                const supports = navigator.mediaDevices.getSupportedConstraints();
if (supports.pan && supports.tilt && supports.zoom) {
  enablePTZ();
} else {
  const message = `You don't have a camera that supports pan, tilt and zoom`;
  const messageBox = document.querySelector("#notification");
  messageBox.innerText = message;
  console.error(message);
}

async function enablePTZ() {
  try {
    const opts = { video: { pan: true, tilt: true, zoom: true } };
    const stream = await navigator.mediaDevices.getUserMedia(opts);

    const [videoTrack] = stream.getVideoTracks();
    const capabilities = videoTrack.getCapabilities();
    const settings = videoTrack.getSettings();

    if ("pan" in settings) {
      enablePan(capabilities, settings, videoTrack);
    }

    if ("zoom" in settings) {
      enableZoom(capabilities, settings, videoTrack);
    }

    if ("tilt" in settings) {
      enableTilt(capabilities, settings, videoTrack);
    }

    document.querySelector("#video").srcObject = stream;
    return stream;
  } catch (error) {
    console.log(error);
    const message = `You've either denied the prompt or matching media isn't available`;
    const messageBox = document.querySelector("#notification");
    messageBox.innerText = message;
    console.error(message);
  }
}

function enablePan(capabilities, settings, videoTrack) {
  const input = document.getElementById("rangePan");
  console.log(capabilities);
  console.log(videoTrack);
  input.min = capabilities.pan.min;
  input.max = capabilities.pan.max;
  input.step = capabilities.pan.step;
  input.value = settings.pan;

  input.addEventListener("input", async () => {
    const opts = { advanced: [{ pan: input.value || input.min }] };
    await videoTrack.applyConstraints(opts);
  });
}

function enableZoom(capabilities, settings, videoTrack) {
  const input = document.getElementById("rangeZoom");
  input.min = capabilities.zoom.min;
  input.max = capabilities.zoom.max;
  input.step = capabilities.zoom.step;
  input.value = settings.zoom;

  input.addEventListener("input", async () => {
    const opts = { advanced: [{ zoom: input.value || input.min }] };
    await videoTrack.applyConstraints(opts);
  });
}

function enableTilt(capabilities, settings, videoTrack) {
  const input = document.getElementById("rangeTilt");
  input.min = capabilities.tilt.min;
  input.max = capabilities.tilt.max;
  input.step = capabilities.tilt.step;
  input.value = settings.tilt;

  input.addEventListener("input", async () => {
    const opts = { advanced: [{ tilt: input.value || input.min }] };
    await videoTrack.applyConstraints(opts);
  });
}
!
999px

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