Record video by from camera without mirror it like snap chat

Question

I'm working on social mobile app. It have option to record video for profile. The issue with my recorder is that it mirror the actual video. I know it is default behaviour, but want it work like sanpchat.

Preview

After recording and playback

Here is my code

// return camera instance when activity open first time
private Camera getCameraInstance() {
    // TODO Auto-generated method stub
    releaseCamera();
    releaseMediaRecorder();
    Camera c = null;
    try {
        cameraId = findFrontFacingCamera();
        if (cameraId < 0) {
            cameraId = findBackFacingCamera();
        }
        c = Camera.open(cameraId);

        // setCameraDisplayOrientation(this,cameraId,c);
        //setCameraDisplayOrientation(this, cameraId, c);
        c.setDisplayOrientation(90);
    } catch (Exception e) {
        // Camera is not available (in use or does not exist)
    }
    return c; // returns null if camera is unavailable
}
// return __cameraPreview Id 1 to open front camera
private int findFrontFacingCamera() { 
    int cameraId = -1;
    // Search for the front facing camera
    int numberOfCameras = Camera.getNumberOfCameras();
    for (int i = 0; i < numberOfCameras; i++) {
        Camera.CameraInfo info = new Camera.CameraInfo();
        Camera.getCameraInfo(i, info);
        if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
            cameraId = i;
            setOrientationHint = 270 ;
            cameraFront = true;
            break;
        }
    }
    return cameraId;
}
// prepare and start recording
private boolean prepareMediaRecorder() {
    mediaRecorder = new MediaRecorder();
    try {
        myCamera.unlock();
    } catch (Exception e) {
        e.printStackTrace();
    }
    mediaRecorder.setCamera(myCamera);

    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
    //mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);

    if (cameraPreview.getVideoSize() != null) {
        mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
        mediaRecorder.setOutputFile(saveUrl);

        mediaRecorder.setVideoEncodingBitRate(10000000);
        mediaRecorder.setVideoFrameRate(30);
        mediaRecorder.setVideoSize(cameraPreview.getVideoSize().width, cameraPreview.getVideoSize().height);

        mediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264);
        mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
    } else {
        CamcorderProfile cp = CamcorderProfile.get(cameraId, CamcorderProfile.QUALITY_HIGH);
        mediaRecorder.setProfile(cp);
    }
    Log.e(TAG, "Video profile CamcorderProfile.QUALITY_HIGH: " + "cp.quality:" + cp.quality
            + ", cp.videoFrameWidth:" + cp.videoFrameWidth
            + ", cp.videoFrameHeight:" + cp.videoFrameHeight);

    mediaRecorder.setMaxDuration(MAX_VIDEO_LENGTH);
    mediaRecorder.setOrientationHint(setOrientationHint);
    try {
        mediaRecorder.prepare();

    } catch (IllegalStateException | IOException e) {
        e.printStackTrace();
        releaseMediaRecorder();
        return false;
    }
    mediaRecorder.start();
    return true;
}

I want it should be same as preview in playback. Sanpchat is already doing the same, thanks in advance.

Answer 1

You have set the orientation for the Front facing camera to 270 here,

setOrientationHint = 270 ;

Instead I would suggest to set the orientation to 180 degree like below,

setOrientationHint = (info.orientation - 180 + 360) % 360;

This will also change the entire video file.

Answer 2

You can use a TextureView, documentation here and apply a transform of -1 scale on the X axis, function here