[Galaxy S 4 i9500 Original Android Development] construidor:
This happen with my when I open Focal, here the logcat, before he freeze. Seems to be linked to continuous focus.

D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newAutoWhitebalanceLock false
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newFocusAreas (0,0,0,0,0)
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):strNewEffect none
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):cityId has null value
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newBrightness 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newSaturation 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newSharpness 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newHue 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):strNewISO auto
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):strNewContrast auto
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newWdr 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters):newVTMode 0
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(setParameters): finished: ret = 0
W/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(void android::ExynosCameraHWImpl::m_restoreMsgType()):m_storedMsg = 0xc1d, m_msgEnabled before = 0x80d
I/ExynosCameraHWImpl( 2507): [CAM-BACK]-setParametersLocked m_startStopLock.unlock()
I/ExynosCameraHWImpl( 2507): [CAM-BACK]-[INFO] autoFocus
D/ExynosCamera( 2507): [CAM-BACK]-[bool ExynosCamera::autoFocus()] (7796) focusMode : 1
D/ExynosCameraActivityFlash( 2507): m_isNeedCaptureFlash 1
D/ExynosCameraActivityAutofocus( 2507): [bool android::ExynosCameraActivityAutofocus::setAutofocusMode(int)] (289) autoFocusMode(1)
D/ExynosCameraActivityAutofocus( 2507): [bool android::ExynosCameraActivityAutofocus::startAutofocus()] (337) m_autoFocusMode(1)
D/ExynosCameraActivityAutofocus( 2507): [bool android::ExynosCameraActivityAutofocus::getAutofocusResult()] (444) getAutofocusResult in m_autoFocusMode(1)
E/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(bool android::ExynosCameraHWImpl::m_previewThreadFunc()):skipping 5 frame
D/ExynosCameraActivityAutofocus( 2507): [virtual int android::ExynosCameraActivityAutofocus::t_func3ABefore(void*)] (175) AF-Mode(HAL/FW)=(1/2) AF-Region(x1,y1,x2,y2,weight)=(0, 0, 0, 0, 1000)
E/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(bool android::ExynosCameraHWImpl::m_previewThreadFunc()):skipping 0 frame
E/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(bool android::ExynosCameraHWImpl::m_previewThreadFunc()):skipping 1 frame
E/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(bool android::ExynosCameraHWImpl::m_previewThreadFunc()):skipping 2 frame
E/Camera-JNI( 5335): Callback buffer was too small! Expected 2332800 bytes, but got 2048000 bytes!
D/ExynosCameraActivityFlash( 2507): [virtual int android::ExynosCameraActivityFlash::t_func3ABefore(void*)] (124) m_flashReq 0 m_flashStatus 0 m_flashStep 0 m_aeState 3
D/ExynosCameraActivityAutofocus( 2507): [bool android::ExynosCameraActivityAutofocus::getAutofocusResult()] (532) getAutofocusResult out m_autoFocusMode(1) m_interenalAutoFocusMode(1) result(1) af_over(1)
D/ExynosCameraHWImpl( 2507): [CAM-BACK]-DEBUG(bool android::ExynosCameraHWImpl::m_autoFocusThreadFunc()):CAMERA_MSG_FOCUS(1) mode(1)

My intuition says the problem is on buffer "E/Camera-JNI( 5335): Callback buffer was too small! Expected 2332800 bytes, but got 2048000 bytes". :p