Does it exist a way to switch camera from front to back in the JS Sdk ?

Yes, you can switch the camera from front to back in the LiveKit JS SDK using the

switchActiveDevice

method. This method allows you to switch the active video input device by specifying the

deviceId

of the new camera you want to use. Would you like more details on how to implement this? Sources: - https://docs.livekit.io/client-sdk-flutter/livekit_client/LocalVideoTrackExt.html - https://docs.livekit.io/client-sdk-js/#md%3Ahandling-common-track-types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

Yes. How i get de deviceid tho ? @millions-hair-24956

To obtain the

deviceId

for available cameras, you can use the

enumerateDevices

method from the WebRTC API. This method returns a list of media devices, including video input devices (cameras), from which you can extract the

deviceId

. Here's a step-by-step guide: 1. Enumerate Devices: Use

navigator.mediaDevices.enumerateDevices()

to get a list of all media devices. 2. Filter Video Input Devices: Filter the list to get only video input devices. 3. Extract Device IDs: Extract the

deviceId

from each video input device. Here's a code snippet to illustrate this:

navigator.mediaDevices.enumerateDevices()
  .then(devices => {
    const videoDevices = devices.filter(device => device.kind === 'videoinput');
    videoDevices.forEach(device => {
      console.log(`Device ID: ${device.deviceId}, Label: ${device.label}`);
    });
  })
  .catch(error => {
    console.error('Error accessing media devices.', error);
  });

This code will log the

deviceId

and label of each video input device to the console, allowing you to choose which one to switch to. Would you like more information on how to use these `deviceId`s to switch cameras? Sources: - Handling common track types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

Is there a more automatic manner ? @millions-hair-24956

To automatically switch between front and back cameras, you can use the

facingMode

constraint in the

getUserMedia

method. This constraint allows you to specify whether you want to use the front or back camera without manually selecting a

deviceId

. Here's how you can implement it: 1. Set Facing Mode: Use the

facingMode

constraint with values like

"user"

for the front camera and

"environment"

for the back camera. 2. Request Media Stream: Call

navigator.mediaDevices.getUserMedia()

with the appropriate constraints. Here's a code example:

const constraints = {
  video: { facingMode: { exact: "environment" } } // Use "user" for front camera
};

navigator.mediaDevices.getUserMedia(constraints)
  .then(stream => {
    // Use the stream with the selected camera
    const videoElement = document.querySelector('video');
    videoElement.srcObject = stream;
  })
  .catch(error => {
    console.error('Error accessing camera.', error);
  });

This approach automatically selects the camera based on the

facingMode

constraint, making it easier to switch between front and back cameras without manually handling `deviceId`s. Would you like more details on this method? Sources: - https://docs.livekit.io/client-sdk-android/livekit-android-sdk/io.livekit.android.room.track/-local-screencast-video-track/index.html#1872133093%252FFunctions%252F-885714121 - https://docs.livekit.io/client-sdk-js/#md%3Ahandling-common-track-types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

show me implementation @millions-hair-24956

I'm here to help with questions related to LiveKit. If you have any specific questions about implementing features using LiveKit, please provide more details or rephrase your question, and I'll do my best to assist you! 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

show me how to createlocal track with facing mode specified @millions-hair-24956

To create a local video track with a specified facing mode in the LiveKit JS SDK, you can use the

createLocalVideoTrack

function with

VideoCaptureOptions

. The

facingMode

option allows you to specify whether you want to use the front or back camera. Here's how you can implement it:

import { createLocalVideoTrack } from 'livekit-client';

async function createTrackWithFacingMode(facingMode) {
  const options = {
    facingMode: facingMode // "user" for front camera, "environment" for back camera
  };

  try {
    const videoTrack = await createLocalVideoTrack(options);
    // Use the video track, e.g., attach it to a video element
    const videoElement = document.createElement('video');
    videoElement.srcObject = new MediaStream([videoTrack.mediaStreamTrack]);
    document.body.appendChild(videoElement);
    videoElement.play();
  } catch (error) {
    console.error('Error creating local video track:', error);
  }
}

// Example usage: create a track with the back camera
createTrackWithFacingMode('environment');

This code snippet demonstrates how to create a local video track with a specified facing mode, either "user" for the front camera or "environment" for the back camera, and attach it to a video element for display. Would you like more information on this implementation? Sources: - https://docs.livekit.io/recipes/video-codecs/ - https://docs.livekit.io/client-sdk-js/#md%3Ahandling-common-track-types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

why the switch dont work cameraRotate.addEventListener("click", async () => { let mode = this.currentTracks.videoTrack ? facingModeFromLocalTrack(this.currentTracks.videoTrack).facingMode : "environment"; mode = mode === "user" ? "environment" : "user"; const constraints = { video: { facingMode: { exact: mode } }, // Use "user" for front camera }; const track = await createLocalVideoTrack({ facingMode: mode, }); if (track?.mediaStreamTrack) { alert(mode); this.currentTracks.videoTrack?.replaceTrack(track?.mediaStreamTrack); } }); @millions-hair-24956

It seems likely that the issue with the camera switch not working could be related to how the

facingMode

is being handled or the

replaceTrack

method. Here are a few things to check: 1. Facing Mode Handling: Ensure that the

facingModeFromLocalTrack

function correctly returns the current facing mode. If it doesn't, the logic for switching between "user" and "environment" might not work as expected. 2. Constraints vs. Options: The

createLocalVideoTrack

function should be called with the correct options. Ensure that the

facingMode

is being set correctly in the options. 3. Replace Track: The

replaceTrack

method should be called on the correct video track. Ensure that

this.currentTracks.videoTrack

is the track you intend to replace. 4. Error Handling: Add error handling to catch any issues during track creation or replacement. Here's a revised version of your code with added error handling:

cameraRotate.addEventListener("click", async () => {
  try {
    let mode = this.currentTracks.videoTrack
      ? facingModeFromLocalTrack(this.currentTracks.videoTrack).facingMode
      : "environment";
    mode = mode === "user" ? "environment" : "user";

    const track = await createLocalVideoTrack({
      facingMode: mode,
    });

    if (track?.mediaStreamTrack) {
      alert(`Switched to ${mode} camera`);
      await this.currentTracks.videoTrack?.replaceTrack(track.mediaStreamTrack);
    }
  } catch (error) {
    console.error('Error switching camera:', error);
  }
});

This code includes error handling to help identify any issues during the camera switch process. If the problem persists, it might be helpful to check the console for any error messages. Would you like more detailed assistance on this? Sources: - Handling common track types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.

Not readable error: could not strart video source @millions-hair-24956

The error "could not start video source" typically indicates an issue with accessing the camera. Here are some common causes and solutions: 1. Permissions: Ensure that the browser has permission to access the camera. Check the browser's settings to confirm that camera access is allowed for your application. 2. Device Availability: Verify that the camera is not being used by another application. Close any other applications that might be using the camera. 3. Constraints: Check the constraints used in

getUserMedia

or

createLocalVideoTrack

. Ensure that the

facingMode

or

deviceId

specified is correct and that the device is available. 4. Browser Support: Ensure that the browser supports the required WebRTC features. Some older browsers or versions may not fully support all features. 5. Error Handling: Add error handling to capture and log the specific error message for more details. Here's an example of how to handle errors when creating a local video track:

try {
  const track = await createLocalVideoTrack({
    facingMode: 'user', // or 'environment'
  });
  // Use the track
} catch (error) {
  console.error('Error starting video source:', error);
}

If you continue to experience issues, please check the console for more detailed error messages and ensure that all necessary permissions and settings are correctly configured. Would you like more detailed assistance on troubleshooting this error? Sources: - Handling common track types 👍 0 button 👎 0 button 💡 Hint: Mention @runllm in the thread for followups.