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POAndroid Camera recording video but plays upside down
 

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  1. POAndroid Camera recording video but plays upside down
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    <p>I record a video using the below code and it records perfectly, but when it plays the video, it plays it upside down.</p> <p>I tried settings <code>mrec.setOrientationHint(180)</code> before <code>mrec.prepare();</code> but it was useless. Any hints?</p> <pre><code>import java.io.File; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import android.app.Activity; import android.hardware.Camera; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.Surface; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.Window; /** * @author SANA HASSAN */ public class CameraSurfaceView extends Activity { private Preview mPreview; private MediaRecorder mrec = new MediaRecorder(); private int cameraId = 0; private Camera mCamera; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); mPreview = new Preview(this); setContentView(mPreview); } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(0, 0, 0, "Start"); menu.add(0, 1, 0, "Stop"); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case 0: try { startRecording(); } catch (Exception e) { e.printStackTrace(); mrec.release(); } break; case 1: mrec.stop(); mrec.release(); mrec = null; break; default: break; } return super.onOptionsItemSelected(item); } protected void startRecording() throws IOException { mrec = new MediaRecorder(); mrec.setCamera(mCamera); mCamera.unlock(); File directory = new File(Environment.getExternalStorageDirectory()+"/NICUVideos"); directory.mkdirs(); mrec.setAudioSource( MediaRecorder.AudioSource.MIC); mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA); mrec.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); mrec.setOutputFile(Environment.getExternalStorageDirectory()+"/NICUVideos/"+System.currentTimeMillis()+".mp4"); mrec.setPreviewDisplay(mPreview.getHolder().getSurface()); mrec.setVideoSize(640, 480); Method[] methods = mrec.getClass().getMethods(); for (Method method: methods){ try{ if(method.getName().equals("setAudioEncodingBitRate")){ method.invoke(mrec, 12200); } else if(method.getName().equals("setVideoEncodingBitRate")){ method.invoke(mrec, 800000); } else if(method.getName().equals("setAudioSamplingRate")){ method.invoke(mrec, 8000); } else if(method.getName().equals("setVideoFrameRate")){ method.invoke(mrec, 20); } } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } } mrec.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); mrec.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP); mrec.setMaxDuration(60000); // 60 seconds mrec.setMaxFileSize(10000000); // Approximately 10 megabytes mrec.prepare(); mrec.start(); } protected void stopRecording() { mrec.stop(); mrec.release(); mCamera.release(); } class Preview extends SurfaceView implements SurfaceHolder.Callback { SurfaceHolder mHolder; Activity activity; Preview(Activity activity) { super(activity); mHolder = getHolder(); mHolder.addCallback(this); mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceCreated(SurfaceHolder holder) { Camera.CameraInfo info=new Camera.CameraInfo(); for (int i=0; i &lt; Camera.getNumberOfCameras(); i++) { Camera.getCameraInfo(i, info); if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { mCamera=Camera.open(i); cameraId = i; } } try { mCamera.setPreviewDisplay(holder); } catch (IOException exception) { mCamera.release(); mCamera = null; } } public void surfaceDestroyed(SurfaceHolder holder) { mCamera.stopPreview(); mCamera.release(); mCamera = null; } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { setCameraDisplayOrientation(mCamera); mCamera.startPreview(); } public void setCameraDisplayOrientation(Camera camera) { Camera.CameraInfo info = new Camera.CameraInfo(); Camera.getCameraInfo(cameraId, info); int rotation = CameraSurfaceView.this.getWindowManager().getDefaultDisplay().getRotation(); int degrees = 0; switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; } int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; // compensate the mirror } else { // back-facing result = (info.orientation - degrees + 360) % 360; } Log.d(Vars.TAG, "Result = "+result); camera.setDisplayOrientation(result); } } } </code></pre>
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    1. CODoes this happen only on your device? Have u tried on different one?
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      1. USRonnie
    2. COAre you sure its not the media player settings.? Other videos playback in correct orientation?
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    3. COYes I am 100% sure that it is not media player settings. My phones are Atrix2, I am not bothered about other phones now.
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      1. USSana
 

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