1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.dialer.callcomposer.camera.exif;
18 
19 class JpegHeader {
20   static final short SOI = (short) 0xFFD8;
21   static final short APP1 = (short) 0xFFE1;
22   static final short EOI = (short) 0xFFD9;
23 
24   /**
25    * SOF (start of frame). All value between SOF0 and SOF15 is SOF marker except for DHT, JPG, and
26    * DAC marker.
27    */
28   private static final short SOF0 = (short) 0xFFC0;
29 
30   private static final short SOF15 = (short) 0xFFCF;
31   private static final short DHT = (short) 0xFFC4;
32   private static final short JPG = (short) 0xFFC8;
33   private static final short DAC = (short) 0xFFCC;
34 
isSofMarker(short marker)35   static boolean isSofMarker(short marker) {
36     return marker >= SOF0 && marker <= SOF15 && marker != DHT && marker != JPG && marker != DAC;
37   }
38 }
39