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/*
* Copyright (c) 2016, The Linux Foundation. All rights reserved.
* Not a contribution.
*
* Copyright (C) 2013 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.mpo;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import android.util.Log;
import com.android.camera.exif.ExifInterface;
import com.android.camera.util.CameraUtil;
public class MpoInterface {
private static final String TAG = "MpoInterface";
private static final String NULL_ARGUMENT_STRING = "Argument is null";
// Index IFD
public static final int TAG_MP_FORMAT_VERSION = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_INDEX_IFD + MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB000);
public static final int TAG_NUM_IMAGES = ExifInterface.defineTag(MpoIfdData.TYPE_MP_INDEX_IFD,
(short) 0xB001);
public static final int TAG_MP_ENTRY = ExifInterface.defineTag(MpoIfdData.TYPE_MP_INDEX_IFD,
(short) 0xB002);
public static final int TAG_IMAGE_UNIQUE_ID_LIST = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_INDEX_IFD, (short) 0xB003);
public static final int TAG_NUM_CAPTURED_FRAMES = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_INDEX_IFD, (short) 0xB004);
// Attrib IFD
public static final int TAG_IMAGE_NUMBER = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB101);
public static final int TAG_PAN_ORIENTATION = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB201);
public static final int TAG_PAN_OVERLAP_H = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB202);
public static final int TAG_PAN_OVERLAP_V = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB203);
public static final int TAG_BASE_VIEWPOINT_NUM = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB204);
public static final int TAG_CONVERGE_ANGLE = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB205);
public static final int TAG_BASELINE_LEN = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB206);
public static final int TAG_DIVERGE_ANGLE = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB207);
public static final int TAG_AXIS_DISTANCE_X = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB208);
public static final int TAG_AXIS_DISTANCE_Y = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB209);
public static final int TAG_AXIS_DISTANCE_Z = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB20A);
public static final int TAG_YAW_ANGLE = ExifInterface.defineTag(MpoIfdData.TYPE_MP_ATTRIB_IFD,
(short) 0xB20B);
public static final int TAG_PITCH_ANGLE = ExifInterface.defineTag(
MpoIfdData.TYPE_MP_ATTRIB_IFD, (short) 0xB20C);
public static final int TAG_ROLL_ANGLE = ExifInterface.defineTag(MpoIfdData.TYPE_MP_ATTRIB_IFD,
(short) 0xB20D);
public static int writeMpo(MpoData mpo, OutputStream out) {
if (mpo == null || out == null)
throw new IllegalArgumentException(NULL_ARGUMENT_STRING);
MpoOutputStream s = getMpoWriterStream(out);
s.setMpoData(mpo);
// check and write mpo file
try {
s.writeMpoFile();
} catch (IOException e) {
CameraUtil.closeSilently(s);
Log.w(TAG, "IO Exception when writing mpo image");
return -1;
}
// close stream
CameraUtil.closeSilently(s);
return s.size();
}
public static int writeMpo(MpoData mpo, String outFilename) {
if (mpo == null || outFilename == null)
throw new IllegalArgumentException(NULL_ARGUMENT_STRING);
return writeMpo(mpo, getFileWriterStream(outFilename));
}
/**
* Wraps an OutputStream object with an MpoOutputStream.
*
* @param outStream
* an OutputStream to wrap.
* @return an MpoOutputStream that wraps the outStream parameter, and adds
* mpo metadata. A jpeg image should be written to this stream.
*/
private static MpoOutputStream getMpoWriterStream(OutputStream outStream) {
if (outStream == null) {
throw new IllegalArgumentException(NULL_ARGUMENT_STRING);
}
MpoOutputStream mos = new MpoOutputStream(outStream);
return mos;
}
/**
* Returns an FileOutputStream object that writes to a file.
*
* @param outFileName
* an String containing a filepath for a file.
* @return an FileOutputStream that writes to the outFileName file.
* @throws FileNotFoundException
*/
private static OutputStream getFileWriterStream(String outFileName) {
if (outFileName == null) {
throw new IllegalArgumentException(NULL_ARGUMENT_STRING);
}
OutputStream out = null;
try {
out = new FileOutputStream(outFileName);
} catch (FileNotFoundException e) {
CameraUtil.closeSilently(out);
Log.w(TAG, "File not found");
}
return out;
}
}
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