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Commit 35efed6c authored by Emilian Peev's avatar Emilian Peev
Browse files

CameraExtensionProxy: Cache vendor id map 

Extensive camera characteristics queries can
be expensive on some devices. The vendor ids
are not likely to change once set by camera
service so their values can be cached to
speed up the extension proxy service
initialization.

FLAG: EXEMPT trivial optimization
Bug: 356964467
Test: Manual using camera extension sample application,
Camera CTS

Change-Id: Ic450cc593d1afee7351f4ab00d059b58c3d30855
parent 30ff6173

packages/services/CameraExtensionsProxy/src/com/android/cameraextensions/CameraExtensionsProxyService.java

+2 −2
Original line number Diff line number Diff line
@@ -171,7 +171,7 @@ public class CameraExtensionsProxyService extends Service { 
            EXTENSIONS_VERSION.startsWith(LATENCY_VERSION_PREFIX) ||

            EXTENSIONS_VERSION.startsWith(EFV_VERSION_PREFIX));



    private HashMap<String, Long> mMetadataVendorIdMap = new HashMap<>();

    private static HashMap<String, Long> mMetadataVendorIdMap = new HashMap<>();

    private CameraManager mCameraManager;



    private static boolean checkForLatencyAPI() {
@@ -820,7 +820,7 @@ public class CameraExtensionsProxyService extends Service { 
            mCameraManager = getSystemService(CameraManager.class);



            String [] cameraIds = mCameraManager.getCameraIdListNoLazy();

            if (cameraIds != null) {

            if (cameraIds != null && mMetadataVendorIdMap.isEmpty()) {

                for (String cameraId : cameraIds) {

                    CameraCharacteristics chars = mCameraManager.getCameraCharacteristics(cameraId);

                    Object thisClass = CameraCharacteristics.Key.class;