commit b16194d50f62eee1f4da85552a8ae4661665ada9
author Jayant Chowdhary <jchowdhary@google.com> Fri Apr 19 16:04:01 2019 -0700
committer Jayant Chowdhary <jchowdhary@google.com> Wed Apr 24 13:31:23 2019 -0700
tree eeca3ec9a0eb19f932aa51bbecfcd2c181ff7336
parent 48601f013a60c916187591e6e05dfaf76a87b698

camera2 vndk: Add ACameraMananger_getTagFromName.

In some situations, clients of the vndk might need to be able to query
tags at runtime, based on tag names. For example, when client hals are
de-coupled from the camera HAL.

Bug: 131093919

Test: AImageReaderVendorTest
Test: Modify AImageReaderVendorTest to retrieve vendor tags given their
      names, using ACameraMetadata_getTagFromName

Change-Id: I1cdec5b154037185e99d29be2c6890e4fdc4a32a
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>

camera/ndk/NdkCameraManager.cpp

diff --git a/camera/ndk/NdkCameraManager.cpp b/camera/ndk/NdkCameraManager.cpp
index 23d01ef..3d231a8 100644
--- a/camera/ndk/NdkCameraManager.cpp
+++ b/camera/ndk/NdkCameraManager.cpp
@@ -190,3 +190,17 @@
     }
     return mgr->openCamera(cameraId, callback, device);
 }
+
+#ifdef __ANDROID_VNDK__
+EXPORT
+camera_status_t ACameraManager_getTagFromName(ACameraManager *mgr, const char* cameraId,
+        const char *name, /*out*/uint32_t *tag) {
+    ATRACE_CALL();
+    if (mgr == nullptr || cameraId == nullptr || name == nullptr) {
+        ALOGE("%s: invalid argument! mgr %p cameraId %p name %p",
+                __FUNCTION__, mgr, cameraId, name);
+        return ACAMERA_ERROR_INVALID_PARAMETER;
+    }
+    return mgr->getTagFromName(cameraId, name, tag);
+}
+#endif