Add support for Exif and JPEG thumbnails

Also:
 * This fixes a bug with jpeg compression when the color plane stride
   doesn't match image width
 * This fixes missing marker at the end of BLOB buffer.

Bug: 324383963
Test: atest virtual_camera_tests
Test: atest VirtualCameraTest
Test: camera cts
Test: Manually examining captured image with exiftool
Change-Id: I4db804b264a98b8873b5465d4d8d0b8477e9d9a5
diff --git a/services/camera/virtualcamera/VirtualCameraSession.h b/services/camera/virtualcamera/VirtualCameraSession.h
index 82a7a34..556314f 100644
--- a/services/camera/virtualcamera/VirtualCameraSession.h
+++ b/services/camera/virtualcamera/VirtualCameraSession.h
@@ -25,6 +25,7 @@
 #include "VirtualCameraSessionContext.h"
 #include "aidl/android/companion/virtualcamera/IVirtualCameraCallback.h"
 #include "aidl/android/hardware/camera/device/BnCameraDeviceSession.h"
+#include "aidl/android/hardware/camera/device/CameraMetadata.h"
 #include "aidl/android/hardware/camera/device/ICameraDeviceCallback.h"
 #include "utils/Mutex.h"
 
@@ -138,7 +139,8 @@
       int8_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>;
   std::shared_ptr<ResultMetadataQueue> mResultMetadataQueue;
 
-  std::atomic_bool mFirstRequest{true};
+  aidl::android::hardware::camera::device::CameraMetadata mCurrentRequestMetadata
+      GUARDED_BY(mLock);
 
   std::unique_ptr<VirtualCameraRenderThread> mRenderThread GUARDED_BY(mLock);
 };