Android: Video recording output orientation flipped

Question

I have developed an app that can record video. When the recording starts the video is recorded in a rotated orientation. The video view while recording is flipped to the lef

Answer 1

Output depend on setOrientationHint(..)

set orientationHint using below

mediaRecorder.setOrientationHint(mOrientation);

        if (Build.MODEL.equalsIgnoreCase("Nexus 6") && flag == 1) {

            if (mOrientation == 90) {
                mediaRecorder.setOrientationHint(mOrientation);
            } else if (mOrientation == 180) {
                mediaRecorder.setOrientationHint(0);
            } else {
                mediaRecorder.setOrientationHint(180);
            }

        } else if (mOrientation == 90 && flag == 1) {
            mediaRecorder.setOrientationHint(270);
        } else if (flag == 1) {
            mediaRecorder.setOrientationHint(mOrientation);
        }


mOrientation you can get from `OrientationEventListener`

You need to enable() orientation listener and disable onDestroy()

Step 1: Declare veriable and Object:

 OrientationEventListener myOrientationEventListener;
 int iOrientation = 0;
 int mOrientation = 90;

Step 2: add this method onCreate()

private void identifyOrientationEvents() {

        myOrientationEventListener = new OrientationEventListener(this, SensorManager.SENSOR_DELAY_NORMAL) {
            @Override
            public void onOrientationChanged(int iAngle) {

                final int iLookup[] = {0, 0, 0, 90, 90, 90, 90, 90, 90, 180, 180, 180, 180, 180, 180, 270, 270, 270, 270, 270, 270, 0, 0, 0}; // 15-degree increments
                if (iAngle != ORIENTATION_UNKNOWN) {

                    int iNewOrientation = iLookup[iAngle / 15];
                    if (iOrientation != iNewOrientation) {
                        iOrientation = iNewOrientation;
                        if (iOrientation == 0) {
                            mOrientation = 90;
                        } else if (iOrientation == 270) {
                            mOrientation = 0;
                        } else if (iOrientation == 90) {
                            mOrientation = 180;
                        }

                    }
                    mPhotoAngle = normalize(iAngle);
                }
            }
        };

        if (myOrientationEventListener.canDetectOrientation()) {
            myOrientationEventListener.enable();
        }

    }

also enable() in onResume()

 @Override
    protected void onResume() {
        super.onResume();
        try {
            if (myOrientationEventListener != null)
                myOrientationEventListener.enable();
        } catch (Exception e1) {
            e1.printStackTrace();
        }

    }

Step 3: Disable after preparing MediaRecorder using

myOrientationEventListener.disable();