1 files changed, 51 insertions, 0 deletions
diff --git a/src/android/jar/src/org/qtproject/qt/android/multimedia/QtExifDataHandler.java b/src/android/jar/src/org/qtproject/qt/android/multimedia/QtExifDataHandler.java
new file mode 100644
index 000000000..c2699eb1d
--- /dev/null
+++ b/src/android/jar/src/org/qtproject/qt/android/multimedia/QtExifDataHandler.java
@@ -0,0 +1,51 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+package org.qtproject.qt.android.multimedia;
+
+import android.hardware.camera2.CaptureResult;
+import android.media.ExifInterface;
+import android.os.Build;
+import android.util.Log;
+
+import java.io.IOException;
+
+public class QtExifDataHandler {
+
+    private int mFlashFired = 0;
+    private long mExposureTime = 0L;
+    private float mFocalLength = 0;
+    private static String mModel = Build.MANUFACTURER + " " + Build.MODEL;
+
+    public QtExifDataHandler(CaptureResult r)
+    {
+        Integer flash = r.get(CaptureResult.FLASH_STATE);
+        if (flash != null && flash == CaptureResult.FLASH_STATE_FIRED)
+            mFlashFired = 1;
+
+        Long exposureTime = r.get(CaptureResult.SENSOR_EXPOSURE_TIME);
+        if (exposureTime != null)
+            mExposureTime = exposureTime/1000000000;
+        mFocalLength = r.get(CaptureResult.LENS_FOCAL_LENGTH);
+    }
+
+    public void save(String path)
+    {
+        ExifInterface exif;
+        try {
+            exif = new ExifInterface(path);
+        } catch ( IOException e ) {
+            Log.e("QtExifDataHandler", "Cannot open file: " + path + "\n" + e);
+            return;
+        }
+        exif.setAttribute(ExifInterface.TAG_FLASH, String.valueOf(mFlashFired));
+        exif.setAttribute(ExifInterface.TAG_EXPOSURE_TIME, String.valueOf(mExposureTime));
+        exif.setAttribute(ExifInterface.TAG_FOCAL_LENGTH, String.valueOf(mFocalLength));
+        exif.setAttribute(ExifInterface.TAG_MODEL, mModel);
+
+        try {
+            exif.saveAttributes();
+        } catch ( IOException e ) {
+            Log.e("QtExifDataHandler", "Cannot save file: " + path + "\n" + e);
+        }
+    }
+}