Android Camera recording video but plays upside down

Question

I record a video using the below code and it records perfectly, but when it plays the video, it plays it upside down.

I tried settings mrec.setOrientationHint(

Answer 1

one more solution is to rotate your activity so that its orientation is the same as sensor orientation. That is, landscape for back camera and upside-down portrait for front camera. This btw will not fix mirror effect for the front camera. One more difficulty is that you will have to implement your UI in those rotated activities in a way to follow the activity orientation.

Answer 2

I know your issue,

Video use Media Recorder from Camera, so you need rotate Media Recorder. use below codes should be fixed your issue.

/**
 * 
 * @param mMediaRecorder
 * @return
 */
public static MediaRecorder rotateBackVideo(MediaRecorder mMediaRecorder) {
    /**
     * Define Orientation of video in here,
     * if in portrait mode, use value = 90,
     * if in landscape mode, use value = 0
     */
    switch (CustomCamera.current_orientation) {
        case 0:
            mMediaRecorder.setOrientationHint(90);
            break;
        case 90:
            mMediaRecorder.setOrientationHint(180);
            break;
        case 180:
            mMediaRecorder.setOrientationHint(270);
            break;
        case 270:
            mMediaRecorder.setOrientationHint(0);
            break;
    }

    return mMediaRecorder;
}

Should add before prepare() method :

// Step 5: Set the preview output
    /**
     * Define Orientation of image in here,
     * if in portrait mode, use value = 90,
     * if in landscape mode, use value = 0
     */
    CustomCamera.mMediaRecorder = Utils.rotateBackVideo(CustomCamera.mMediaRecorder);
    CustomCamera.mMediaRecorder.setPreviewDisplay(mCameraPreview.getHolder().getSurface());

Thank you

Answer 3

Finally I have found out that Motorola phones have problem in playing the video which is recorded in portrait mode.

In order to overcome the rotation of the video, the best solution I have adopted was to upload the video to the server and run ffmpeg on using the command ffmpeg -i input.mp4 -c:v mpeg4 -c:a copy -c:s copy -vf "transpose=2" output.mp4

If you feel there was another way, please do let me know.

Answer 4

Here is the code for custom portrait camera, will set the correct rotation of picture and video:

---

private OrientationEventListener orientationEventListener;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //...
    orientationEventListener = new OrientationEventListener(this) {
        @Override
        public void onOrientationChanged(int orientation) {
            if (orientation == ORIENTATION_UNKNOWN) return;

            flashButton.setRotation(-(orientation));
            cameraButton.setRotation(-(orientation));

            if (camera != null) {
                Parameters parameters = camera.getParameters();
                CameraInfo info = new CameraInfo();
                Camera.getCameraInfo(selectedCamera, info);
                orientation = (orientation + 45) / 90 * 90;
                int rotation = 0;
                if (info.facing == CameraInfo.CAMERA_FACING_FRONT) {
                    rotation = (info.orientation - orientation + 360) % 360;
                } else {  // back-facing camera
                    rotation = (info.orientation + orientation) % 360;
                }
                parameters.setRotation(rotation);
                if (!isRecording) {
                    mediaRecorder.setOrientationHint(rotation);
                }

                camera.setParameters(parameters);
            }
        }
    };
}


@Override
protected void onResume() {
    super.onResume();
    //...
    orientationEventListener.enable();
}

@Override
protected void onPause() {
    super.onPause();
    orientationEventListener.disable();
    //...
}

---

Teste with portrait orientation. Remeber to put it in your manifest to test code. I dont know if work in landscape.

<activity android:name=".activities.CameraActivity"
          android:screenOrientation="portrait">

Answer 5

This problem is due to Android handling rotation by just setting some metadata instead of actually rotating the video, and some playback software then ignoring that setting.

As noted in the docs:

Note that some video players may choose to ignore the compostion matrix in a video during playback.

Your options are to either use different playback software that understands the metadata being set, or to re-encode the video after it's been recorded to the correct orientation. It's not clear from your description which of those would be the better solution in your case.

Answer 6

This should be called before the mrec.prepare(); method

setOrientationHint(degrees);

Link

EDIT: Try mCamera.setDisplayOrientation(degrees);

0 for landscape
90 for portrait
180 & 270 don't work very well and give weird results.

Some older players and encoders do not interpret this flag which is why the video plays upside down.