android - Issue with Nexus 6P : configure 60 fps preview session using camera 2 api -

i try implement high speed capture session click on button. here state callback:

private cameradevice.statecallback mcameradevicestatecallback = new cameradevice.statecallback() {      @override     public void onopened(cameradevice cameradevice) {         mcameradevice = cameradevice;         startpreview();     }      @override     public void ondisconnected(cameradevice cameradevice) {         mcameraopencloselock.release();         cameradevice.close();         mcameradevice = null;     }      @override     public void onerror(cameradevice cameradevice, int error) {         mcameraopencloselock.release();         cameradevice.close();         mcameradevice = null;     }  }; 

open camera method:

 private void opencamera() throws cameraaccessexception {      cameramanager manager = (cameramanager) context.getsystemservice(context.camera_service);     try {         mcameracharacteristics = manager.getcameracharacteristics(string.valueof(currentcamid));     } catch (cameraaccessexception e) {         e.printstacktrace();     }     manager.opencamera(string.valueof(currentcamid), mcameradevicestatecallback, mhandler); } 

called when started preview , onclick event

  private void createcapturesession(list<surface> surfaces) throws cameraaccessexception {      if(mpreviewsession!=null){         mpreviewsession.close();         mpreviewsession = null;     }     if (!ishighspeed) {         log.d(log_tag, "createcapturesession ishighspeed" +ishighspeed );          mcameradevice.createcapturesession(surfaces, new cameracapturesession.statecallback() {              @override             public void onconfigured(cameracapturesession cameracapturesession) {                 log.i(log_tag, "cameracapturesession onconfigured :" + cameracapturesession.hashcode());                 mpreviewsession = cameracapturesession;                 updatepreview();             }              @override             public void onconfigurefailed(cameracapturesession cameracapturesession) {              }         }, mhandler);     } else {         if (build.version.sdk_int >= build.version_codes.m) {             log.d(log_tag, "createcapturesession ishighspeed" +ishighspeed );             mcameradevice.createconstrainedhighspeedcapturesession(surfaces, new cameracapturesession.statecallback() {                  @override                 public void onconfigured(cameracapturesession cameracapturesession) {                     log.i(log_tag, "cameracapturesession onconfigured :" + cameracapturesession.hashcode());                      if (build.version.sdk_int >= build.version_codes.m) {                         mpreviewsession = cameracapturesession;                     }                     updatepreview();                 }                  @override                 public void onconfigurefailed(cameracapturesession cameracapturesession) {                     log.e(log_tag, "failed");                 }             }, mhandler);         }     } } 

update preview called above

private void updatepreview() {      try {         list<capturerequest> capturelist = null;         if (android.os.build.version.sdk_int >= android.os.build.version_codes.m && ishighspeed) {             streamconfigurationmap map = mcameracharacteristics.get(cameracharacteristics.scaler_stream_configuration_map);             range<integer>[] highspeedvideofpsranges = map.gethighspeedvideofpsranges();             mpreviewbuilder.set(capturerequest.control_ae_target_fps_range, highspeedvideofpsranges[3]);//hardcode, 3 highest size nexus6p              capturelist = ((cameraconstrainedhighspeedcapturesession) mpreviewsession).createhighspeedrequestlist(mpreviewbuilder.build());              mpreviewsession.setrepeatingburst(capturelist, new cameracapturesession.capturecallback() {                 @override                 public void oncapturestarted(cameracapturesession session, capturerequest request, long timestamp, long framenumber) {                     super.oncapturestarted(session, request, timestamp, framenumber);                 }             }, mhandler);         } else {             mpreviewsession.setrepeatingrequest(mpreviewbuilder.build(), null, mhandler);         }     } catch (exception e) {         e.printstacktrace();     } } 

the first time went right, but, when try start app again there error while open camera device, error code 1 in callback. without running high fps good. escape issue device must rebooted, mystified me

releasingcamera:

@override public void oncampause() {    // super.oncampause();     stoppreview();     closecamera();     stopbackgroundthread(); }  private void closepreviewsession() {     if (mpreviewsession != null) {         mpreviewsession.close();         mpreviewsession = null;     } }  private void closecamera() {     try {         mcameraopencloselock.acquire();         if (null != mcamera) {             mcamera.close();             mcamera = null;         }      } catch (interruptedexception e) {         throw new runtimeexception("interrupted while trying lock camera closing.");     } {         mcameraopencloselock.release();     } }  private void stopbackgroundthread() {     if (mcamerathread != null) {         mcamerathread.quitsafely();          try {             mcamerathread.join();             mcamerathread = null;             mcamerahandler = null;         } catch (interruptedexception e) {             e.printstacktrace();         }     } }` 

here background thread camera:

private void initcamerathread() {     log.e(tag, "init camera thread begin.");     mcamerathread = new handlerthread("camera handler thread");     mcamerathread.start();     mhandler = new handler(mcamerathread.getlooper());     log.e(tag, "nit camera thread done"); }