fatal error

[Alexmego]

Hello,sir.a fatal error occurred.
Process: edu.wuwang.codec, PID: 4708
java.lang.NullPointerException: Attempt to invoke virtual method 'void edu.wuwang.codec.coder.CameraRecorder.feedData(byte[], long)' on a null object reference
at edu.wuwang.codec.camera.CameraActivity.onFrame(CameraActivity.java:241)
at edu.wuwang.codec.camera.CameraDrawer.frameCallback(CameraDrawer.java:251)
at edu.wuwang.codec.camera.CameraDrawer.callbackIfNeeded(CameraDrawer.java:240)
at edu.wuwang.codec.camera.CameraDrawer.onDrawFrame(CameraDrawer.java:169)
at edu.wuwang.codec.camera.CameraView.onDrawFrame(CameraView.java:124)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1548)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1259)