Android L Camera2 Previewbuilder set Capturerequest.control_effect_mode not work.

Device: Nexus 7 WiFi 2013

Software version: razor-lpx13d-preview-ae4f461f.tgz

    Mcameramanager.opencamera (Mcameraid, mstatecallback, null);         Mpreviewbuilder = Mcameradevice.createcapturerequest (Cameradevice.template_preview);        Mcameradevice.createcapturesession (Arrays.aslist (surface), mstatecallback, null);        Mpreviewbuilder.set (Capturerequest.control_mode, camerametadata.control_mode_auto);        <strong><span style= "color: #ff0000;" >mpreviewbuilder.set (Capturerequest.control_effect_mode, camerametadata.control_effect_mode_negative); </ Span></strong>        mpreviewsession.setrepeatingrequest (Mpreviewbuilder.build (), mCaptureCallback, NULL) ;

Want to set the effect is not good, who knows how to set it?

Android L Camera2 Previewbuilder set Capturerequest.control_effect_mode not work.