Allow ANDROID_LENS_FOCAL_LENGTH in virtual camera capture result

... and set only ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS into
camera characteristics during camera creation.

Test: atest virtual_camera_tests
Fixes: 324385418
Change-Id: I28d0ed636210bee9309fce0eaaa531d99670f26b
diff --git a/services/camera/virtualcamera/util/MetadataBuilder.cc b/services/camera/virtualcamera/util/MetadataBuilder.cc
index 5669e12..db5a5dd 100644
--- a/services/camera/virtualcamera/util/MetadataBuilder.cc
+++ b/services/camera/virtualcamera/util/MetadataBuilder.cc
@@ -99,13 +99,17 @@
   return *this;
 }
 
-MetadataBuilder& MetadataBuilder::setFocalLength(float focalLength) {
-  std::vector<float> focalLengths({focalLength});
-  mEntryMap[ANDROID_LENS_FOCAL_LENGTH] = focalLengths;
+MetadataBuilder& MetadataBuilder::setAvailableFocalLengths(
+    const std::vector<float>& focalLengths) {
   mEntryMap[ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS] = focalLengths;
   return *this;
 }
 
+MetadataBuilder& MetadataBuilder::setFocalLength(float focalLength) {
+  mEntryMap[ANDROID_LENS_FOCAL_LENGTH] = asVectorOf<float>(focalLength);
+  return *this;
+}
+
 MetadataBuilder& MetadataBuilder::setSensorOrientation(int32_t sensorOrientation) {
   mEntryMap[ANDROID_SENSOR_ORIENTATION] = asVectorOf<int32_t>(sensorOrientation);
   return *this;
diff --git a/services/camera/virtualcamera/util/MetadataBuilder.h b/services/camera/virtualcamera/util/MetadataBuilder.h
index 606cc3d..fdc35fd 100644
--- a/services/camera/virtualcamera/util/MetadataBuilder.h
+++ b/services/camera/virtualcamera/util/MetadataBuilder.h
@@ -96,8 +96,10 @@
       camera_metadata_enum_android_sensor_readout_timestamp_t
           sensorReadoutTimestamp);
 
-  // See ANDROID_LENS_FOCAL_LENGTH and ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
-  // in CameraMetadataTag.aidl.
+  // See ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS in CameraMetadataTag.aidl.
+  MetadataBuilder& setAvailableFocalLengths(const std::vector<float>& focalLengths);
+
+  // See ANDROID_LENS_FOCAL_LENGTH in CameraMetadataTag.aidl.
   MetadataBuilder& setFocalLength(float focalLength);
 
   // See ANDROID_SENSOR_ORIENTATION in CameraMetadataTag.aidl.