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Diffstat (limited to 'src/com/android/camera/Exif.java')
-rw-r--r-- | src/com/android/camera/Exif.java | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/com/android/camera/Exif.java b/src/com/android/camera/Exif.java new file mode 100644 index 000000000..c6ec6af50 --- /dev/null +++ b/src/com/android/camera/Exif.java @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.camera; + +import android.util.Log; + +import com.android.gallery3d.exif.ExifInterface; + +import java.io.IOException; + +public class Exif { + private static final String TAG = "CameraExif"; + + public static ExifInterface getExif(byte[] jpegData) { + ExifInterface exif = new ExifInterface(); + try { + exif.readExif(jpegData); + } catch (IOException e) { + Log.w(TAG, "Failed to read EXIF data", e); + } + return exif; + } + + // Returns the degrees in clockwise. Values are 0, 90, 180, or 270. + public static int getOrientation(ExifInterface exif) { + Integer val = exif.getTagIntValue(ExifInterface.TAG_ORIENTATION); + if (val == null) { + return 0; + } else { + return ExifInterface.getRotationForOrientationValue(val.shortValue()); + } + } + + public static int getOrientation(byte[] jpegData) { + if (jpegData == null) return 0; + + ExifInterface exif = getExif(jpegData); + return getOrientation(exif); + } +} |