How to programmatically take Photos while recording Video using Camera2 API in Android

How to programmatically take Photos while recording Video using Camera2 API in Android

Combining video recording and photo capture simultaneously using the Camera2 API in Android can be quite complex, as it involves managing multiple capture sessions and media recorder configurations. Here's a basic outline of how you can achieve this:

  1. Set up your CameraManager and open the camera device.
  2. Configure a MediaRecorder for video recording.
  3. Set up a capture session for the camera and the MediaRecorder.
  4. Start video recording.
  5. Within a separate capture request, configure a ImageReader for capturing photos.
  6. Capture photos periodically while video recording is ongoing.

Below is a basic example demonstrating how you might achieve this:

// Declare fields for camera and media recording private CameraDevice mCameraDevice; private MediaRecorder mMediaRecorder; // Configure and prepare the MediaRecorder private void setupMediaRecorder() { mMediaRecorder = new MediaRecorder(); // Configure MediaRecorder settings (e.g., output format, video size, etc.) // Set the output file for video recording mMediaRecorder.setOutputFile(getOutputMediaFile().toString()); // Prepare MediaRecorder mMediaRecorder.prepare(); } // Start video recording private void startRecordingVideo() { // Start MediaRecorder mMediaRecorder.start(); } // Initialize capture session for camera and MediaRecorder private void setUpCaptureSession() { List<Surface> surfaces = new ArrayList<>(); surfaces.add(mMediaRecorder.getSurface()); // Set up image reader for capturing photos ImageReader imageReader = ImageReader.newInstance(photoWidth, photoHeight, ImageFormat.JPEG, maxImages); imageReader.setOnImageAvailableListener(onImageAvailableListener, backgroundHandler); surfaces.add(imageReader.getSurface()); // Create capture session mCameraDevice.createCaptureSession(surfaces, captureSessionStateCallback, backgroundHandler); } // Capture photos periodically private void capturePhoto() { // Create a CaptureRequest for still image capture CaptureRequest.Builder captureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE); captureBuilder.addTarget(imageReader.getSurface()); // Capture the image mCaptureSession.capture(captureBuilder.build(), captureCallback, backgroundHandler); }

This is a very basic example and might not cover all aspects of error handling, permission handling, and camera configuration. You'll need to handle those according to your application's requirements.

Also, keep in mind that simultaneous video recording and photo capture can put a strain on the device's resources, so it's essential to handle resources efficiently and test your implementation on various devices to ensure optimal performance.

Examples

  1. "Android Camera2 API take photo while recording video"

    • Description: This query seeks to understand how to programmatically capture photos while recording video using the Camera2 API in Android.
    • Code Implementation:
      // Inside your CameraCaptureSession.CaptureCallback private CameraCaptureSession.CaptureCallback mCaptureCallback = new CameraCaptureSession.CaptureCallback() { @Override public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) { super.onCaptureCompleted(session, request, result); // Check if recording video if (mIsRecording) { // Capture photo while recording captureStillPicture(); } } }; private void captureStillPicture() { try { // Create CaptureRequest.Builder for still image final CaptureRequest.Builder captureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE); captureBuilder.addTarget(mImageReader.getSurface()); // Orientation int rotation = getWindowManager().getDefaultDisplay().getRotation(); captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getOrientation(rotation)); // Capture image mCaptureSession.capture(captureBuilder.build(), mCaptureCallback, null); } catch (CameraAccessException e) { e.printStackTrace(); } }
      This code captures a still image while recording video by checking the status of the recording flag in the CaptureCallback.

  2. "Android Camera2 API simultaneous photo and video capture"

    • Description: This query aims to find ways to concurrently capture photos and record video using the Camera2 API in Android.
    • Code Implementation:
      // Inside your CameraCaptureSession.StateCallback private CameraCaptureSession.StateCallback mCaptureSessionCallback = new CameraCaptureSession.StateCallback() { @Override public void onConfigured(@NonNull CameraCaptureSession session) { try { mCaptureSession = session; // Start recording video startRecordingVideo(); // Capture photo captureStillPicture(); } catch (CameraAccessException e) { e.printStackTrace(); } } @Override public void onConfigureFailed(@NonNull CameraCaptureSession session) { // Handle configuration failure } };
      This code starts both video recording and photo capture simultaneously within the onConfigured method of the CameraCaptureSession.StateCallback.

  3. "Android Camera2 API take photo while recording example"

    • Description: This query looks for a specific example demonstrating how to capture photos while recording video using the Camera2 API in Android.
    • Code Implementation:
      // Inside your activity or fragment private void startCamera() { // Open camera device mCameraManager.openCamera(mCameraId, mCameraStateCallback, mBackgroundHandler); } private CameraDevice.StateCallback mCameraStateCallback = new CameraDevice.StateCallback() { @Override public void onOpened(@NonNull CameraDevice camera) { mCameraDevice = camera; // Start video recording startRecordingVideo(); // Capture photo captureStillPicture(); } @Override public void onDisconnected(@NonNull CameraDevice camera) { // Handle camera disconnect } @Override public void onError(@NonNull CameraDevice camera, int error) { // Handle camera error } };
      This code snippet demonstrates initiating both video recording and photo capture once the camera device is opened.

  4. "Android Camera2 API capture photo during video recording"

    • Description: This query focuses on capturing a photo while actively recording video using the Camera2 API in Android.
    • Code Implementation:
      // Inside your MediaRecorder.OnInfoListener private MediaRecorder.OnInfoListener mMediaRecorderListener = new MediaRecorder.OnInfoListener() { @Override public void onInfo(MediaRecorder mr, int what, int extra) { if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) { // Capture photo when max duration reached captureStillPicture(); } } };
      This code captures a photo when the maximum duration for video recording is reached, leveraging the MediaRecorder.OnInfoListener.

  5. "Android Camera2 API simultaneous video and photo capture example"

    • Description: This query aims to find a sample code snippet demonstrating how to concurrently capture both video and photos using the Camera2 API in Android.
    • Code Implementation:
      // Inside your CameraCaptureSession.StateCallback private CameraCaptureSession.StateCallback mCaptureSessionCallback = new CameraCaptureSession.StateCallback() { @Override public void onConfigured(@NonNull CameraCaptureSession session) { try { mCaptureSession = session; // Start video recording startRecordingVideo(); // Capture photo captureStillPicture(); } catch (CameraAccessException e) { e.printStackTrace(); } } @Override public void onConfigureFailed(@NonNull CameraCaptureSession session) { // Handle configuration failure } };
      This code snippet demonstrates initiating both video recording and photo capture concurrently within the onConfigured method of the CameraCaptureSession.StateCallback.

  6. "Android Camera2 API record video and take picture simultaneously"

    • Description: This query seeks methods to perform both video recording and photo capture at the same time using the Camera2 API in Android.
    • Code Implementation:
      // Inside your CameraCaptureSession.CaptureCallback private CameraCaptureSession.CaptureCallback mCaptureCallback = new CameraCaptureSession.CaptureCallback() { @Override public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) { super.onCaptureCompleted(session, request, result); // Check if recording video if (mIsRecording) { // Capture photo while recording captureStillPicture(); } } };
      This code captures a photo while recording video by checking the status of the recording flag in the CaptureCallback.

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