android: Set result metadata and EXIF fields based on request metadata

Set the following android result metadata:
- ANDROID_LENS_FOCAL_LENGTH
- ANDROID_LENS_APERTURE
- ANDROID_JPEG_GPS_TIMESTAMP
- ANDROID_JPEG_GPS_COORDINATES
- ANDROID_JPEG_GPS_PROCESSING_METHOD

And the following EXIF fields:
- GPSDatestamp
- GPSTimestamp
- GPSLocation
  - GPSLatitudeRef
  - GPSLatitude
  - GPSLongitudeRef
  - GPSLongitude
  - GPSAltitudeRef
  - GPSAltitude
- GPSProcessingMethod
- FocalLength
- ExposureTime
- FNumber
- ISO
- Flash
- WhiteBalance
- SubsecTime
- SubsecTimeOriginal
- SubsecTimeDigitized

Based on android request metadata.

This allows the following CTS tests to pass:
- android.hardware.camera2.cts.StillCaptureTest#testFocalLengths
- android.hardware.camera2.cts.StillCaptureTest#testJpegExif

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/android/camera_stream.h b/src/android/camera_stream.h
index cc9d5470..298ffbf6 100644
--- a/src/android/camera_stream.h
+++ b/src/android/camera_stream.h
@@ -119,7 +119,9 @@ public:
 
 	int configure();
 	int process(const libcamera::FrameBuffer &source,
-		    MappedCamera3Buffer *dest, CameraMetadata *metadata);
+		    MappedCamera3Buffer *dest,
+		    const CameraMetadata &requestMetadata,
+		    CameraMetadata *resultMetadata);
 	libcamera::FrameBuffer *getBuffer();
 	void putBuffer(libcamera::FrameBuffer *buffer);