diff options
Diffstat (limited to 'java/com/android/dialer/callcomposer/camera/exif/JpegHeader.java')
-rw-r--r-- | java/com/android/dialer/callcomposer/camera/exif/JpegHeader.java | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/java/com/android/dialer/callcomposer/camera/exif/JpegHeader.java b/java/com/android/dialer/callcomposer/camera/exif/JpegHeader.java new file mode 100644 index 000000000..3d98fcc0e --- /dev/null +++ b/java/com/android/dialer/callcomposer/camera/exif/JpegHeader.java @@ -0,0 +1,38 @@ +/* + * Copyright (C) 2016 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.dialer.callcomposer.camera.exif; + +class JpegHeader { + static final short SOI = (short) 0xFFD8; + static final short APP1 = (short) 0xFFE1; + static final short EOI = (short) 0xFFD9; + + /** + * SOF (start of frame). All value between SOF0 and SOF15 is SOF marker except for DHT, JPG, and + * DAC marker. + */ + private static final short SOF0 = (short) 0xFFC0; + + private static final short SOF15 = (short) 0xFFCF; + private static final short DHT = (short) 0xFFC4; + private static final short JPG = (short) 0xFFC8; + private static final short DAC = (short) 0xFFCC; + + static boolean isSofMarker(short marker) { + return marker >= SOF0 && marker <= SOF15 && marker != DHT && marker != JPG && marker != DAC; + } +} |