so I have a camera app that I also want to record videos. when I push a button to switch from camera to video i do this
public void prepareVideoRecorder() {
mCamera.stopPreview();
mCamera.prepareRecorder(video_orientation, camera_surface);
// mCamera.startPreview();
}
and my prepare method
public void prepareRecorder(int video_degrees, CameraSurfaceView sf) {
CamcorderProfile camcorderProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
recorder = new MediaRecorder();
mCamera.unlock();
recorder.setCamera(mCamera);
recorder.setPreviewDisplay(sf.getHolder().getSurface());
Log.v("this", "orientation hint = " + video_degrees);
recorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
recorder.setVideoSource(MediaRecorder.VideoSource.DEFAULT);
recorder.setOrientationHint(video_degrees);
File imageFileFolder = new File(Environment.getExternalStorageDirectory(), "DCIM");
String filename = imageFileFolder.toString() + "/" + new SimpleDateFormat("ddMMyyyyHHmmss").format(new Date()) + ".mp4";
recorder.setOutputFile(filename);
recorder.setProfile(camcorderProfile);
try {
recorder.prepare();
} catch (Exception e) {
e.printStackTrace();
}
}
when i push the "switch" button the preview stops. But if i push the start recording button, everything works good, i can record the video and also the preview starts again. If i try to uncomment the mCamera.startPreview() from prepareVideoRecorder i get this error
02-24 13:44:49.146: E/InputEventReceiver(18078): Exception dispatching input event.
02-24 13:44:49.146: E/MessageQueue-JNI(18078): Exception in MessageQueue callback: handleReceiveCallback
02-24 13:44:49.146: E/MessageQueue-JNI(18078): java.lang.RuntimeException: startPreview failed
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.hardware.Camera.startPreview(Native Method)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at org.dtaz.yoda.DtazCamera.startPreview(DtazCamera.java:136)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at org.dtaz.yoda.DtazPreview.prepareVideoRecorder(DtazPreview.java:343)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at org.dtaz.yoda.CameraActivity.swipeGesture(CameraActivity.java:600)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at org.dtaz.yoda.CameraSurfaceView.onTouchEvent(CameraSurfaceView.java:87)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.View.dispatchTouchEvent(View.java:7706)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2333)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1568)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.app.Activity.dispatchTouchEvent(Activity.java:2468)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2281)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.View.dispatchPointerEvent(View.java:7886)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3947)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3826)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3442)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3411)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3518)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3419)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3575)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3442)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3411)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3419)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5532)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5512)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5483)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5612)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.os.MessageQueue.nativePollOnce(Native Method)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.os.MessageQueue.next(MessageQueue.java:138)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.os.Looper.loop(Looper.java:123)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at android.app.ActivityThread.main(ActivityThread.java:5034)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at java.lang.reflect.Method.invokeNative(Native Method)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at java.lang.reflect.Method.invoke(Method.java:515)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
02-24 13:44:49.146: E/MessageQueue-JNI(18078): at dalvik.system.NativeStart.main(Native Method)
02-24 13:44:49.156: D/AndroidRuntime(18078): Shutting down VM
02-24 13:44:49.156: W/dalvikvm(18078): threadid=1: thread exiting with uncaught exception (group=0x41841c08)
02-24 13:44:49.166: E/AndroidRuntime(18078): FATAL EXCEPTION: main
02-24 13:44:49.166: E/AndroidRuntime(18078): Process: org.dtaz.yoda, PID: 18078
02-24 13:44:49.166: E/AndroidRuntime(18078): java.lang.RuntimeException: startPreview failed
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.hardware.Camera.startPreview(Native Method)
02-24 13:44:49.166: E/AndroidRuntime(18078): at org.dtaz.yoda.DtazCamera.startPreview(DtazCamera.java:136)
02-24 13:44:49.166: E/AndroidRuntime(18078): at org.dtaz.yoda.DtazPreview.prepareVideoRecorder(DtazPreview.java:343)
02-24 13:44:49.166: E/AndroidRuntime(18078): at org.dtaz.yoda.CameraActivity.swipeGesture(CameraActivity.java:600)
02-24 13:44:49.166: E/AndroidRuntime(18078): at org.dtaz.yoda.CameraSurfaceView.onTouchEvent(CameraSurfaceView.java:87)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.View.dispatchTouchEvent(View.java:7706)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
02-24 13:44:49.166: E/AndroidRuntime(18078): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2333)
02-24 13:44:49.166: E/AndroidRuntime(18078): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1568)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.app.Activity.dispatchTouchEvent(Activity.java:2468)
02-24 13:44:49.166: E/AndroidRuntime(18078): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2281)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.View.dispatchPointerEvent(View.java:7886)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:3947)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:3826)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3442)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3411)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3518)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3419)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3575)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3442)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3411)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3419)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3392)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5532)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5512)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5483)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5612)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.os.MessageQueue.nativePollOnce(Native Method)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.os.MessageQueue.next(MessageQueue.java:138)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.os.Looper.loop(Looper.java:123)
02-24 13:44:49.166: E/AndroidRuntime(18078): at android.app.ActivityThread.main(ActivityThread.java:5034)
02-24 13:44:49.166: E/AndroidRuntime(18078): at java.lang.reflect.Method.invokeNative(Native Method)
02-24 13:44:49.166: E/AndroidRuntime(18078): at java.lang.reflect.Method.invoke(Method.java:515)
02-24 13:44:49.166: E/AndroidRuntime(18078): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
02-24 13:44:49.166: E/AndroidRuntime(18078): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:611)
02-24 13:44:49.166: E/AndroidRuntime(18078): at dalvik.system.NativeStart.main(Native Method)
anyone know what is going on?
ok so I came up with a solution, i don't know if it is the right one but it works.
The case is that in order to record video the camera instance needs to be acquired by the MediaRecorder and simultaneously if you want to show preview , the camera instance needs to be in the surfaceview. That's why if you start the recording you can see the image been captured.
so the only way to overcome this is to put the prepare inside the onclick method just before the mediarecorder.start() like this.
take_picture.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (isVideo) {
if (!isRecording) {
camera_preview.prepareVideoRecorder();
camera_preview.startRecording();
take_picture.setText("stop");
isRecording = true;
} else {
camera_preview.stopRecording();
take_picture.setText("start");
isRecording = false;
}
}
}
});
If you put the code like this, everything works good. If anyone has a better solution please post it so we can use it!!!