assign encoder to muxer concode_field_sep String DIR_NAME concode_elem_sep String mOutputPath concode_elem_sep MediaMuxer mMediaMuxer concode_elem_sep int mStatredCount concode_elem_sep boolean DEBUG concode_elem_sep String TAG concode_elem_sep SimpleDateFormat mDateTimeFormat concode_elem_sep boolean mIsStarted concode_elem_sep int mEncoderCount concode_elem_sep MediaEncoder mAudioEncoder concode_elem_sep MediaEncoder mVideoEncoder concode_field_sep void prepare concode_elem_sep String getDateTimeString concode_elem_sep void stop concode_elem_sep void addEncoder concode_elem_sep void startRecording concode_elem_sep boolean start concode_elem_sep File getCaptureFile concode_elem_sep boolean isStarted concode_elem_sep String getOutputPath concode_elem_sep void stopRecording concode_elem_sep void writeSampleData