diff options
| author | ztenghui <ztenghui@google.com> | 2013-08-23 11:47:56 -0700 |
|---|---|---|
| committer | ztenghui <ztenghui@google.com> | 2013-08-28 13:07:45 -0700 |
| commit | a16e7b50f3148f581439509279f242092e254309 (patch) | |
| tree | aa5ba2660ad79635b4f3d4a14691c7ebeac907d7 /gallerycommon | |
| parent | 7446e9fde7cd8dd7904beff592e8819513797ab9 (diff) | |
| download | android_packages_apps_Snap-a16e7b50f3148f581439509279f242092e254309.tar.gz android_packages_apps_Snap-a16e7b50f3148f581439509279f242092e254309.tar.bz2 android_packages_apps_Snap-a16e7b50f3148f581439509279f242092e254309.zip | |
Add rotate support in Film Strip
Move the exif related code under src.com.android.camera.exif.
Refactor the member variables under LocalMediaData.java.
Refactor the LocalData to make sure they are immutables for thread safety.
bug:10367037
Change-Id: I0e84bcc0097925b2be749fe016984177a68e0a4d
Diffstat (limited to 'gallerycommon')
16 files changed, 0 insertions, 6085 deletions
diff --git a/gallerycommon/Android.mk b/gallerycommon/Android.mk deleted file mode 100644 index 1be5f5485..000000000 --- a/gallerycommon/Android.mk +++ /dev/null @@ -1,27 +0,0 @@ -# Copyright 2011, 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. - -LOCAL_PATH := $(call my-dir) - -# Build the com.android.emailcommon static library. At the moment, this includes -# the emailcommon files themselves plus everything under src/org (apache code). All of our -# AIDL files are also compiled into the static library - -include $(CLEAR_VARS) - -LOCAL_MODULE := com.android.camera.common -LOCAL_SRC_FILES := $(call all-java-files-under, src) -LOCAL_SDK_VERSION := 16 - -include $(BUILD_STATIC_JAVA_LIBRARY) diff --git a/gallerycommon/src/com/android/gallery3d/exif/ByteBufferInputStream.java b/gallerycommon/src/com/android/gallery3d/exif/ByteBufferInputStream.java deleted file mode 100644 index 7fb9f22cc..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ByteBufferInputStream.java +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.io.InputStream; -import java.nio.ByteBuffer; - -class ByteBufferInputStream extends InputStream { - - private ByteBuffer mBuf; - - public ByteBufferInputStream(ByteBuffer buf) { - mBuf = buf; - } - - @Override - public int read() { - if (!mBuf.hasRemaining()) { - return -1; - } - return mBuf.get() & 0xFF; - } - - @Override - public int read(byte[] bytes, int off, int len) { - if (!mBuf.hasRemaining()) { - return -1; - } - - len = Math.min(len, mBuf.remaining()); - mBuf.get(bytes, off, len); - return len; - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/CountedDataInputStream.java b/gallerycommon/src/com/android/gallery3d/exif/CountedDataInputStream.java deleted file mode 100644 index dfd4a1a10..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/CountedDataInputStream.java +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.io.EOFException; -import java.io.FilterInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.nio.charset.Charset; - -class CountedDataInputStream extends FilterInputStream { - - private int mCount = 0; - - // allocate a byte buffer for a long value; - private final byte mByteArray[] = new byte[8]; - private final ByteBuffer mByteBuffer = ByteBuffer.wrap(mByteArray); - - protected CountedDataInputStream(InputStream in) { - super(in); - } - - public int getReadByteCount() { - return mCount; - } - - @Override - public int read(byte[] b) throws IOException { - int r = in.read(b); - mCount += (r >= 0) ? r : 0; - return r; - } - - @Override - public int read(byte[] b, int off, int len) throws IOException { - int r = in.read(b, off, len); - mCount += (r >= 0) ? r : 0; - return r; - } - - @Override - public int read() throws IOException { - int r = in.read(); - mCount += (r >= 0) ? 1 : 0; - return r; - } - - @Override - public long skip(long length) throws IOException { - long skip = in.skip(length); - mCount += skip; - return skip; - } - - public void skipOrThrow(long length) throws IOException { - if (skip(length) != length) throw new EOFException(); - } - - public void skipTo(long target) throws IOException { - long cur = mCount; - long diff = target - cur; - assert(diff >= 0); - skipOrThrow(diff); - } - - public void readOrThrow(byte[] b, int off, int len) throws IOException { - int r = read(b, off, len); - if (r != len) throw new EOFException(); - } - - public void readOrThrow(byte[] b) throws IOException { - readOrThrow(b, 0, b.length); - } - - public void setByteOrder(ByteOrder order) { - mByteBuffer.order(order); - } - - public ByteOrder getByteOrder() { - return mByteBuffer.order(); - } - - public short readShort() throws IOException { - readOrThrow(mByteArray, 0 ,2); - mByteBuffer.rewind(); - return mByteBuffer.getShort(); - } - - public int readUnsignedShort() throws IOException { - return readShort() & 0xffff; - } - - public int readInt() throws IOException { - readOrThrow(mByteArray, 0 , 4); - mByteBuffer.rewind(); - return mByteBuffer.getInt(); - } - - public long readUnsignedInt() throws IOException { - return readInt() & 0xffffffffL; - } - - public long readLong() throws IOException { - readOrThrow(mByteArray, 0 , 8); - mByteBuffer.rewind(); - return mByteBuffer.getLong(); - } - - public String readString(int n) throws IOException { - byte buf[] = new byte[n]; - readOrThrow(buf); - return new String(buf, "UTF8"); - } - - public String readString(int n, Charset charset) throws IOException { - byte buf[] = new byte[n]; - readOrThrow(buf); - return new String(buf, charset); - } -}
\ No newline at end of file diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifData.java b/gallerycommon/src/com/android/gallery3d/exif/ExifData.java deleted file mode 100644 index 8422382bb..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifData.java +++ /dev/null @@ -1,348 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import android.util.Log; - -import java.io.UnsupportedEncodingException; -import java.nio.ByteOrder; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.List; - -/** - * This class stores the EXIF header in IFDs according to the JPEG - * specification. It is the result produced by {@link ExifReader}. - * - * @see ExifReader - * @see IfdData - */ -class ExifData { - private static final String TAG = "ExifData"; - private static final byte[] USER_COMMENT_ASCII = { - 0x41, 0x53, 0x43, 0x49, 0x49, 0x00, 0x00, 0x00 - }; - private static final byte[] USER_COMMENT_JIS = { - 0x4A, 0x49, 0x53, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - private static final byte[] USER_COMMENT_UNICODE = { - 0x55, 0x4E, 0x49, 0x43, 0x4F, 0x44, 0x45, 0x00 - }; - - private final IfdData[] mIfdDatas = new IfdData[IfdId.TYPE_IFD_COUNT]; - private byte[] mThumbnail; - private ArrayList<byte[]> mStripBytes = new ArrayList<byte[]>(); - private final ByteOrder mByteOrder; - - ExifData(ByteOrder order) { - mByteOrder = order; - } - - /** - * Gets the compressed thumbnail. Returns null if there is no compressed - * thumbnail. - * - * @see #hasCompressedThumbnail() - */ - protected byte[] getCompressedThumbnail() { - return mThumbnail; - } - - /** - * Sets the compressed thumbnail. - */ - protected void setCompressedThumbnail(byte[] thumbnail) { - mThumbnail = thumbnail; - } - - /** - * Returns true it this header contains a compressed thumbnail. - */ - protected boolean hasCompressedThumbnail() { - return mThumbnail != null; - } - - /** - * Adds an uncompressed strip. - */ - protected void setStripBytes(int index, byte[] strip) { - if (index < mStripBytes.size()) { - mStripBytes.set(index, strip); - } else { - for (int i = mStripBytes.size(); i < index; i++) { - mStripBytes.add(null); - } - mStripBytes.add(strip); - } - } - - /** - * Gets the strip count. - */ - protected int getStripCount() { - return mStripBytes.size(); - } - - /** - * Gets the strip at the specified index. - * - * @exceptions #IndexOutOfBoundException - */ - protected byte[] getStrip(int index) { - return mStripBytes.get(index); - } - - /** - * Returns true if this header contains uncompressed strip. - */ - protected boolean hasUncompressedStrip() { - return mStripBytes.size() != 0; - } - - /** - * Gets the byte order. - */ - protected ByteOrder getByteOrder() { - return mByteOrder; - } - - /** - * Returns the {@link IfdData} object corresponding to a given IFD if it - * exists or null. - */ - protected IfdData getIfdData(int ifdId) { - if (ExifTag.isValidIfd(ifdId)) { - return mIfdDatas[ifdId]; - } - return null; - } - - /** - * Adds IFD data. If IFD data of the same type already exists, it will be - * replaced by the new data. - */ - protected void addIfdData(IfdData data) { - mIfdDatas[data.getId()] = data; - } - - /** - * Returns the {@link IfdData} object corresponding to a given IFD or - * generates one if none exist. - */ - protected IfdData getOrCreateIfdData(int ifdId) { - IfdData ifdData = mIfdDatas[ifdId]; - if (ifdData == null) { - ifdData = new IfdData(ifdId); - mIfdDatas[ifdId] = ifdData; - } - return ifdData; - } - - /** - * Returns the tag with a given TID in the given IFD if the tag exists. - * Otherwise returns null. - */ - protected ExifTag getTag(short tag, int ifd) { - IfdData ifdData = mIfdDatas[ifd]; - return (ifdData == null) ? null : ifdData.getTag(tag); - } - - /** - * Adds the given ExifTag to its default IFD and returns an existing ExifTag - * with the same TID or null if none exist. - */ - protected ExifTag addTag(ExifTag tag) { - if (tag != null) { - int ifd = tag.getIfd(); - return addTag(tag, ifd); - } - return null; - } - - /** - * Adds the given ExifTag to the given IFD and returns an existing ExifTag - * with the same TID or null if none exist. - */ - protected ExifTag addTag(ExifTag tag, int ifdId) { - if (tag != null && ExifTag.isValidIfd(ifdId)) { - IfdData ifdData = getOrCreateIfdData(ifdId); - return ifdData.setTag(tag); - } - return null; - } - - protected void clearThumbnailAndStrips() { - mThumbnail = null; - mStripBytes.clear(); - } - - /** - * Removes the thumbnail and its related tags. IFD1 will be removed. - */ - protected void removeThumbnailData() { - clearThumbnailAndStrips(); - mIfdDatas[IfdId.TYPE_IFD_1] = null; - } - - /** - * Removes the tag with a given TID and IFD. - */ - protected void removeTag(short tagId, int ifdId) { - IfdData ifdData = mIfdDatas[ifdId]; - if (ifdData == null) { - return; - } - ifdData.removeTag(tagId); - } - - /** - * Decodes the user comment tag into string as specified in the EXIF - * standard. Returns null if decoding failed. - */ - protected String getUserComment() { - IfdData ifdData = mIfdDatas[IfdId.TYPE_IFD_0]; - if (ifdData == null) { - return null; - } - ExifTag tag = ifdData.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_USER_COMMENT)); - if (tag == null) { - return null; - } - if (tag.getComponentCount() < 8) { - return null; - } - - byte[] buf = new byte[tag.getComponentCount()]; - tag.getBytes(buf); - - byte[] code = new byte[8]; - System.arraycopy(buf, 0, code, 0, 8); - - try { - if (Arrays.equals(code, USER_COMMENT_ASCII)) { - return new String(buf, 8, buf.length - 8, "US-ASCII"); - } else if (Arrays.equals(code, USER_COMMENT_JIS)) { - return new String(buf, 8, buf.length - 8, "EUC-JP"); - } else if (Arrays.equals(code, USER_COMMENT_UNICODE)) { - return new String(buf, 8, buf.length - 8, "UTF-16"); - } else { - return null; - } - } catch (UnsupportedEncodingException e) { - Log.w(TAG, "Failed to decode the user comment"); - return null; - } - } - - /** - * Returns a list of all {@link ExifTag}s in the ExifData or null if there - * are none. - */ - protected List<ExifTag> getAllTags() { - ArrayList<ExifTag> ret = new ArrayList<ExifTag>(); - for (IfdData d : mIfdDatas) { - if (d != null) { - ExifTag[] tags = d.getAllTags(); - if (tags != null) { - for (ExifTag t : tags) { - ret.add(t); - } - } - } - } - if (ret.size() == 0) { - return null; - } - return ret; - } - - /** - * Returns a list of all {@link ExifTag}s in a given IFD or null if there - * are none. - */ - protected List<ExifTag> getAllTagsForIfd(int ifd) { - IfdData d = mIfdDatas[ifd]; - if (d == null) { - return null; - } - ExifTag[] tags = d.getAllTags(); - if (tags == null) { - return null; - } - ArrayList<ExifTag> ret = new ArrayList<ExifTag>(tags.length); - for (ExifTag t : tags) { - ret.add(t); - } - if (ret.size() == 0) { - return null; - } - return ret; - } - - /** - * Returns a list of all {@link ExifTag}s with a given TID or null if there - * are none. - */ - protected List<ExifTag> getAllTagsForTagId(short tag) { - ArrayList<ExifTag> ret = new ArrayList<ExifTag>(); - for (IfdData d : mIfdDatas) { - if (d != null) { - ExifTag t = d.getTag(tag); - if (t != null) { - ret.add(t); - } - } - } - if (ret.size() == 0) { - return null; - } - return ret; - } - - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } - if (obj == null) { - return false; - } - if (obj instanceof ExifData) { - ExifData data = (ExifData) obj; - if (data.mByteOrder != mByteOrder || - data.mStripBytes.size() != mStripBytes.size() || - !Arrays.equals(data.mThumbnail, mThumbnail)) { - return false; - } - for (int i = 0; i < mStripBytes.size(); i++) { - if (!Arrays.equals(data.mStripBytes.get(i), mStripBytes.get(i))) { - return false; - } - } - for (int i = 0; i < IfdId.TYPE_IFD_COUNT; i++) { - IfdData ifd1 = data.getIfdData(i); - IfdData ifd2 = getIfdData(i); - if (ifd1 != ifd2 && ifd1 != null && !ifd1.equals(ifd2)) { - return false; - } - } - return true; - } - return false; - } - -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifInterface.java b/gallerycommon/src/com/android/gallery3d/exif/ExifInterface.java deleted file mode 100644 index a1cf0fc85..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifInterface.java +++ /dev/null @@ -1,2407 +0,0 @@ -/* - * 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.gallery3d.exif; - -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.util.SparseIntArray; - -import java.io.BufferedInputStream; -import java.io.ByteArrayInputStream; -import java.io.ByteArrayOutputStream; -import java.io.Closeable; -import java.io.File; -import java.io.FileInputStream; -import java.io.FileNotFoundException; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.io.OutputStream; -import java.io.RandomAccessFile; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.nio.channels.FileChannel.MapMode; -import java.text.DateFormat; -import java.text.SimpleDateFormat; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Calendar; -import java.util.Collection; -import java.util.HashSet; -import java.util.List; -import java.util.TimeZone; - -/** - * This class provides methods and constants for reading and writing jpeg file - * metadata. It contains a collection of ExifTags, and a collection of - * definitions for creating valid ExifTags. The collection of ExifTags can be - * updated by: reading new ones from a file, deleting or adding existing ones, - * or building new ExifTags from a tag definition. These ExifTags can be written - * to a valid jpeg image as exif metadata. - * <p> - * Each ExifTag has a tag ID (TID) and is stored in a specific image file - * directory (IFD) as specified by the exif standard. A tag definition can be - * looked up with a constant that is a combination of TID and IFD. This - * definition has information about the type, number of components, and valid - * IFDs for a tag. - * - * @see ExifTag - */ -public class ExifInterface { - public static final int TAG_NULL = -1; - public static final int IFD_NULL = -1; - public static final int DEFINITION_NULL = 0; - - /** - * Tag constants for Jeita EXIF 2.2 - */ - - // IFD 0 - public static final int TAG_IMAGE_WIDTH = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0100); - public static final int TAG_IMAGE_LENGTH = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0101); // Image height - public static final int TAG_BITS_PER_SAMPLE = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0102); - public static final int TAG_COMPRESSION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0103); - public static final int TAG_PHOTOMETRIC_INTERPRETATION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0106); - public static final int TAG_IMAGE_DESCRIPTION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x010E); - public static final int TAG_MAKE = - defineTag(IfdId.TYPE_IFD_0, (short) 0x010F); - public static final int TAG_MODEL = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0110); - public static final int TAG_STRIP_OFFSETS = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0111); - public static final int TAG_ORIENTATION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0112); - public static final int TAG_SAMPLES_PER_PIXEL = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0115); - public static final int TAG_ROWS_PER_STRIP = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0116); - public static final int TAG_STRIP_BYTE_COUNTS = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0117); - public static final int TAG_X_RESOLUTION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x011A); - public static final int TAG_Y_RESOLUTION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x011B); - public static final int TAG_PLANAR_CONFIGURATION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x011C); - public static final int TAG_RESOLUTION_UNIT = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0128); - public static final int TAG_TRANSFER_FUNCTION = - defineTag(IfdId.TYPE_IFD_0, (short) 0x012D); - public static final int TAG_SOFTWARE = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0131); - public static final int TAG_DATE_TIME = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0132); - public static final int TAG_ARTIST = - defineTag(IfdId.TYPE_IFD_0, (short) 0x013B); - public static final int TAG_WHITE_POINT = - defineTag(IfdId.TYPE_IFD_0, (short) 0x013E); - public static final int TAG_PRIMARY_CHROMATICITIES = - defineTag(IfdId.TYPE_IFD_0, (short) 0x013F); - public static final int TAG_Y_CB_CR_COEFFICIENTS = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0211); - public static final int TAG_Y_CB_CR_SUB_SAMPLING = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0212); - public static final int TAG_Y_CB_CR_POSITIONING = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0213); - public static final int TAG_REFERENCE_BLACK_WHITE = - defineTag(IfdId.TYPE_IFD_0, (short) 0x0214); - public static final int TAG_COPYRIGHT = - defineTag(IfdId.TYPE_IFD_0, (short) 0x8298); - public static final int TAG_EXIF_IFD = - defineTag(IfdId.TYPE_IFD_0, (short) 0x8769); - public static final int TAG_GPS_IFD = - defineTag(IfdId.TYPE_IFD_0, (short) 0x8825); - // IFD 1 - public static final int TAG_JPEG_INTERCHANGE_FORMAT = - defineTag(IfdId.TYPE_IFD_1, (short) 0x0201); - public static final int TAG_JPEG_INTERCHANGE_FORMAT_LENGTH = - defineTag(IfdId.TYPE_IFD_1, (short) 0x0202); - // IFD Exif Tags - public static final int TAG_EXPOSURE_TIME = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x829A); - public static final int TAG_F_NUMBER = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x829D); - public static final int TAG_EXPOSURE_PROGRAM = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x8822); - public static final int TAG_SPECTRAL_SENSITIVITY = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x8824); - public static final int TAG_ISO_SPEED_RATINGS = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x8827); - public static final int TAG_OECF = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x8828); - public static final int TAG_EXIF_VERSION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9000); - public static final int TAG_DATE_TIME_ORIGINAL = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9003); - public static final int TAG_DATE_TIME_DIGITIZED = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9004); - public static final int TAG_COMPONENTS_CONFIGURATION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9101); - public static final int TAG_COMPRESSED_BITS_PER_PIXEL = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9102); - public static final int TAG_SHUTTER_SPEED_VALUE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9201); - public static final int TAG_APERTURE_VALUE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9202); - public static final int TAG_BRIGHTNESS_VALUE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9203); - public static final int TAG_EXPOSURE_BIAS_VALUE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9204); - public static final int TAG_MAX_APERTURE_VALUE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9205); - public static final int TAG_SUBJECT_DISTANCE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9206); - public static final int TAG_METERING_MODE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9207); - public static final int TAG_LIGHT_SOURCE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9208); - public static final int TAG_FLASH = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9209); - public static final int TAG_FOCAL_LENGTH = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x920A); - public static final int TAG_SUBJECT_AREA = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9214); - public static final int TAG_MAKER_NOTE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x927C); - public static final int TAG_USER_COMMENT = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9286); - public static final int TAG_SUB_SEC_TIME = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9290); - public static final int TAG_SUB_SEC_TIME_ORIGINAL = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9291); - public static final int TAG_SUB_SEC_TIME_DIGITIZED = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0x9292); - public static final int TAG_FLASHPIX_VERSION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA000); - public static final int TAG_COLOR_SPACE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA001); - public static final int TAG_PIXEL_X_DIMENSION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA002); - public static final int TAG_PIXEL_Y_DIMENSION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA003); - public static final int TAG_RELATED_SOUND_FILE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA004); - public static final int TAG_INTEROPERABILITY_IFD = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA005); - public static final int TAG_FLASH_ENERGY = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA20B); - public static final int TAG_SPATIAL_FREQUENCY_RESPONSE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA20C); - public static final int TAG_FOCAL_PLANE_X_RESOLUTION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA20E); - public static final int TAG_FOCAL_PLANE_Y_RESOLUTION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA20F); - public static final int TAG_FOCAL_PLANE_RESOLUTION_UNIT = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA210); - public static final int TAG_SUBJECT_LOCATION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA214); - public static final int TAG_EXPOSURE_INDEX = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA215); - public static final int TAG_SENSING_METHOD = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA217); - public static final int TAG_FILE_SOURCE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA300); - public static final int TAG_SCENE_TYPE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA301); - public static final int TAG_CFA_PATTERN = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA302); - public static final int TAG_CUSTOM_RENDERED = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA401); - public static final int TAG_EXPOSURE_MODE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA402); - public static final int TAG_WHITE_BALANCE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA403); - public static final int TAG_DIGITAL_ZOOM_RATIO = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA404); - public static final int TAG_FOCAL_LENGTH_IN_35_MM_FILE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA405); - public static final int TAG_SCENE_CAPTURE_TYPE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA406); - public static final int TAG_GAIN_CONTROL = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA407); - public static final int TAG_CONTRAST = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA408); - public static final int TAG_SATURATION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA409); - public static final int TAG_SHARPNESS = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA40A); - public static final int TAG_DEVICE_SETTING_DESCRIPTION = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA40B); - public static final int TAG_SUBJECT_DISTANCE_RANGE = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA40C); - public static final int TAG_IMAGE_UNIQUE_ID = - defineTag(IfdId.TYPE_IFD_EXIF, (short) 0xA420); - // IFD GPS tags - public static final int TAG_GPS_VERSION_ID = - defineTag(IfdId.TYPE_IFD_GPS, (short) 0); - public static final int TAG_GPS_LATITUDE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 1); - public static final int TAG_GPS_LATITUDE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 2); - public static final int TAG_GPS_LONGITUDE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 3); - public static final int TAG_GPS_LONGITUDE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 4); - public static final int TAG_GPS_ALTITUDE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 5); - public static final int TAG_GPS_ALTITUDE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 6); - public static final int TAG_GPS_TIME_STAMP = - defineTag(IfdId.TYPE_IFD_GPS, (short) 7); - public static final int TAG_GPS_SATTELLITES = - defineTag(IfdId.TYPE_IFD_GPS, (short) 8); - public static final int TAG_GPS_STATUS = - defineTag(IfdId.TYPE_IFD_GPS, (short) 9); - public static final int TAG_GPS_MEASURE_MODE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 10); - public static final int TAG_GPS_DOP = - defineTag(IfdId.TYPE_IFD_GPS, (short) 11); - public static final int TAG_GPS_SPEED_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 12); - public static final int TAG_GPS_SPEED = - defineTag(IfdId.TYPE_IFD_GPS, (short) 13); - public static final int TAG_GPS_TRACK_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 14); - public static final int TAG_GPS_TRACK = - defineTag(IfdId.TYPE_IFD_GPS, (short) 15); - public static final int TAG_GPS_IMG_DIRECTION_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 16); - public static final int TAG_GPS_IMG_DIRECTION = - defineTag(IfdId.TYPE_IFD_GPS, (short) 17); - public static final int TAG_GPS_MAP_DATUM = - defineTag(IfdId.TYPE_IFD_GPS, (short) 18); - public static final int TAG_GPS_DEST_LATITUDE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 19); - public static final int TAG_GPS_DEST_LATITUDE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 20); - public static final int TAG_GPS_DEST_LONGITUDE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 21); - public static final int TAG_GPS_DEST_LONGITUDE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 22); - public static final int TAG_GPS_DEST_BEARING_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 23); - public static final int TAG_GPS_DEST_BEARING = - defineTag(IfdId.TYPE_IFD_GPS, (short) 24); - public static final int TAG_GPS_DEST_DISTANCE_REF = - defineTag(IfdId.TYPE_IFD_GPS, (short) 25); - public static final int TAG_GPS_DEST_DISTANCE = - defineTag(IfdId.TYPE_IFD_GPS, (short) 26); - public static final int TAG_GPS_PROCESSING_METHOD = - defineTag(IfdId.TYPE_IFD_GPS, (short) 27); - public static final int TAG_GPS_AREA_INFORMATION = - defineTag(IfdId.TYPE_IFD_GPS, (short) 28); - public static final int TAG_GPS_DATE_STAMP = - defineTag(IfdId.TYPE_IFD_GPS, (short) 29); - public static final int TAG_GPS_DIFFERENTIAL = - defineTag(IfdId.TYPE_IFD_GPS, (short) 30); - // IFD Interoperability tags - public static final int TAG_INTEROPERABILITY_INDEX = - defineTag(IfdId.TYPE_IFD_INTEROPERABILITY, (short) 1); - - /** - * Tags that contain offset markers. These are included in the banned - * defines. - */ - private static HashSet<Short> sOffsetTags = new HashSet<Short>(); - static { - sOffsetTags.add(getTrueTagKey(TAG_GPS_IFD)); - sOffsetTags.add(getTrueTagKey(TAG_EXIF_IFD)); - sOffsetTags.add(getTrueTagKey(TAG_JPEG_INTERCHANGE_FORMAT)); - sOffsetTags.add(getTrueTagKey(TAG_INTEROPERABILITY_IFD)); - sOffsetTags.add(getTrueTagKey(TAG_STRIP_OFFSETS)); - } - - /** - * Tags with definitions that cannot be overridden (banned defines). - */ - protected static HashSet<Short> sBannedDefines = new HashSet<Short>(sOffsetTags); - static { - sBannedDefines.add(getTrueTagKey(TAG_NULL)); - sBannedDefines.add(getTrueTagKey(TAG_JPEG_INTERCHANGE_FORMAT_LENGTH)); - sBannedDefines.add(getTrueTagKey(TAG_STRIP_BYTE_COUNTS)); - } - - /** - * Returns the constant representing a tag with a given TID and default IFD. - */ - public static int defineTag(int ifdId, short tagId) { - return (tagId & 0x0000ffff) | (ifdId << 16); - } - - /** - * Returns the TID for a tag constant. - */ - public static short getTrueTagKey(int tag) { - // Truncate - return (short) tag; - } - - /** - * Returns the default IFD for a tag constant. - */ - public static int getTrueIfd(int tag) { - return tag >>> 16; - } - - /** - * Constants for {@link TAG_ORIENTATION}. They can be interpreted as - * follows: - * <ul> - * <li>TOP_LEFT is the normal orientation.</li> - * <li>TOP_RIGHT is a left-right mirror.</li> - * <li>BOTTOM_LEFT is a 180 degree rotation.</li> - * <li>BOTTOM_RIGHT is a top-bottom mirror.</li> - * <li>LEFT_TOP is mirrored about the top-left<->bottom-right axis.</li> - * <li>RIGHT_TOP is a 90 degree clockwise rotation.</li> - * <li>LEFT_BOTTOM is mirrored about the top-right<->bottom-left axis.</li> - * <li>RIGHT_BOTTOM is a 270 degree clockwise rotation.</li> - * </ul> - */ - public static interface Orientation { - public static final short TOP_LEFT = 1; - public static final short TOP_RIGHT = 2; - public static final short BOTTOM_LEFT = 3; - public static final short BOTTOM_RIGHT = 4; - public static final short LEFT_TOP = 5; - public static final short RIGHT_TOP = 6; - public static final short LEFT_BOTTOM = 7; - public static final short RIGHT_BOTTOM = 8; - } - - /** - * Constants for {@link TAG_Y_CB_CR_POSITIONING} - */ - public static interface YCbCrPositioning { - public static final short CENTERED = 1; - public static final short CO_SITED = 2; - } - - /** - * Constants for {@link TAG_COMPRESSION} - */ - public static interface Compression { - public static final short UNCOMPRESSION = 1; - public static final short JPEG = 6; - } - - /** - * Constants for {@link TAG_RESOLUTION_UNIT} - */ - public static interface ResolutionUnit { - public static final short INCHES = 2; - public static final short CENTIMETERS = 3; - } - - /** - * Constants for {@link TAG_PHOTOMETRIC_INTERPRETATION} - */ - public static interface PhotometricInterpretation { - public static final short RGB = 2; - public static final short YCBCR = 6; - } - - /** - * Constants for {@link TAG_PLANAR_CONFIGURATION} - */ - public static interface PlanarConfiguration { - public static final short CHUNKY = 1; - public static final short PLANAR = 2; - } - - /** - * Constants for {@link TAG_EXPOSURE_PROGRAM} - */ - public static interface ExposureProgram { - public static final short NOT_DEFINED = 0; - public static final short MANUAL = 1; - public static final short NORMAL_PROGRAM = 2; - public static final short APERTURE_PRIORITY = 3; - public static final short SHUTTER_PRIORITY = 4; - public static final short CREATIVE_PROGRAM = 5; - public static final short ACTION_PROGRAM = 6; - public static final short PROTRAIT_MODE = 7; - public static final short LANDSCAPE_MODE = 8; - } - - /** - * Constants for {@link TAG_METERING_MODE} - */ - public static interface MeteringMode { - public static final short UNKNOWN = 0; - public static final short AVERAGE = 1; - public static final short CENTER_WEIGHTED_AVERAGE = 2; - public static final short SPOT = 3; - public static final short MULTISPOT = 4; - public static final short PATTERN = 5; - public static final short PARTAIL = 6; - public static final short OTHER = 255; - } - - /** - * Constants for {@link TAG_FLASH} As the definition in Jeita EXIF 2.2 - * standard, we can treat this constant as bitwise flag. - * <p> - * e.g. - * <p> - * short flash = FIRED | RETURN_STROBE_RETURN_LIGHT_DETECTED | - * MODE_AUTO_MODE - */ - public static interface Flash { - // LSB - public static final short DID_NOT_FIRED = 0; - public static final short FIRED = 1; - // 1st~2nd bits - public static final short RETURN_NO_STROBE_RETURN_DETECTION_FUNCTION = 0 << 1; - public static final short RETURN_STROBE_RETURN_LIGHT_NOT_DETECTED = 2 << 1; - public static final short RETURN_STROBE_RETURN_LIGHT_DETECTED = 3 << 1; - // 3rd~4th bits - public static final short MODE_UNKNOWN = 0 << 3; - public static final short MODE_COMPULSORY_FLASH_FIRING = 1 << 3; - public static final short MODE_COMPULSORY_FLASH_SUPPRESSION = 2 << 3; - public static final short MODE_AUTO_MODE = 3 << 3; - // 5th bit - public static final short FUNCTION_PRESENT = 0 << 5; - public static final short FUNCTION_NO_FUNCTION = 1 << 5; - // 6th bit - public static final short RED_EYE_REDUCTION_NO_OR_UNKNOWN = 0 << 6; - public static final short RED_EYE_REDUCTION_SUPPORT = 1 << 6; - } - - /** - * Constants for {@link TAG_COLOR_SPACE} - */ - public static interface ColorSpace { - public static final short SRGB = 1; - public static final short UNCALIBRATED = (short) 0xFFFF; - } - - /** - * Constants for {@link TAG_EXPOSURE_MODE} - */ - public static interface ExposureMode { - public static final short AUTO_EXPOSURE = 0; - public static final short MANUAL_EXPOSURE = 1; - public static final short AUTO_BRACKET = 2; - } - - /** - * Constants for {@link TAG_WHITE_BALANCE} - */ - public static interface WhiteBalance { - public static final short AUTO = 0; - public static final short MANUAL = 1; - } - - /** - * Constants for {@link TAG_SCENE_CAPTURE_TYPE} - */ - public static interface SceneCapture { - public static final short STANDARD = 0; - public static final short LANDSCAPE = 1; - public static final short PROTRAIT = 2; - public static final short NIGHT_SCENE = 3; - } - - /** - * Constants for {@link TAG_COMPONENTS_CONFIGURATION} - */ - public static interface ComponentsConfiguration { - public static final short NOT_EXIST = 0; - public static final short Y = 1; - public static final short CB = 2; - public static final short CR = 3; - public static final short R = 4; - public static final short G = 5; - public static final short B = 6; - } - - /** - * Constants for {@link TAG_LIGHT_SOURCE} - */ - public static interface LightSource { - public static final short UNKNOWN = 0; - public static final short DAYLIGHT = 1; - public static final short FLUORESCENT = 2; - public static final short TUNGSTEN = 3; - public static final short FLASH = 4; - public static final short FINE_WEATHER = 9; - public static final short CLOUDY_WEATHER = 10; - public static final short SHADE = 11; - public static final short DAYLIGHT_FLUORESCENT = 12; - public static final short DAY_WHITE_FLUORESCENT = 13; - public static final short COOL_WHITE_FLUORESCENT = 14; - public static final short WHITE_FLUORESCENT = 15; - public static final short STANDARD_LIGHT_A = 17; - public static final short STANDARD_LIGHT_B = 18; - public static final short STANDARD_LIGHT_C = 19; - public static final short D55 = 20; - public static final short D65 = 21; - public static final short D75 = 22; - public static final short D50 = 23; - public static final short ISO_STUDIO_TUNGSTEN = 24; - public static final short OTHER = 255; - } - - /** - * Constants for {@link TAG_SENSING_METHOD} - */ - public static interface SensingMethod { - public static final short NOT_DEFINED = 1; - public static final short ONE_CHIP_COLOR = 2; - public static final short TWO_CHIP_COLOR = 3; - public static final short THREE_CHIP_COLOR = 4; - public static final short COLOR_SEQUENTIAL_AREA = 5; - public static final short TRILINEAR = 7; - public static final short COLOR_SEQUENTIAL_LINEAR = 8; - } - - /** - * Constants for {@link TAG_FILE_SOURCE} - */ - public static interface FileSource { - public static final short DSC = 3; - } - - /** - * Constants for {@link TAG_SCENE_TYPE} - */ - public static interface SceneType { - public static final short DIRECT_PHOTOGRAPHED = 1; - } - - /** - * Constants for {@link TAG_GAIN_CONTROL} - */ - public static interface GainControl { - public static final short NONE = 0; - public static final short LOW_UP = 1; - public static final short HIGH_UP = 2; - public static final short LOW_DOWN = 3; - public static final short HIGH_DOWN = 4; - } - - /** - * Constants for {@link TAG_CONTRAST} - */ - public static interface Contrast { - public static final short NORMAL = 0; - public static final short SOFT = 1; - public static final short HARD = 2; - } - - /** - * Constants for {@link TAG_SATURATION} - */ - public static interface Saturation { - public static final short NORMAL = 0; - public static final short LOW = 1; - public static final short HIGH = 2; - } - - /** - * Constants for {@link TAG_SHARPNESS} - */ - public static interface Sharpness { - public static final short NORMAL = 0; - public static final short SOFT = 1; - public static final short HARD = 2; - } - - /** - * Constants for {@link TAG_SUBJECT_DISTANCE} - */ - public static interface SubjectDistance { - public static final short UNKNOWN = 0; - public static final short MACRO = 1; - public static final short CLOSE_VIEW = 2; - public static final short DISTANT_VIEW = 3; - } - - /** - * Constants for {@link TAG_GPS_LATITUDE_REF}, - * {@link TAG_GPS_DEST_LATITUDE_REF} - */ - public static interface GpsLatitudeRef { - public static final String NORTH = "N"; - public static final String SOUTH = "S"; - } - - /** - * Constants for {@link TAG_GPS_LONGITUDE_REF}, - * {@link TAG_GPS_DEST_LONGITUDE_REF} - */ - public static interface GpsLongitudeRef { - public static final String EAST = "E"; - public static final String WEST = "W"; - } - - /** - * Constants for {@link TAG_GPS_ALTITUDE_REF} - */ - public static interface GpsAltitudeRef { - public static final short SEA_LEVEL = 0; - public static final short SEA_LEVEL_NEGATIVE = 1; - } - - /** - * Constants for {@link TAG_GPS_STATUS} - */ - public static interface GpsStatus { - public static final String IN_PROGRESS = "A"; - public static final String INTEROPERABILITY = "V"; - } - - /** - * Constants for {@link TAG_GPS_MEASURE_MODE} - */ - public static interface GpsMeasureMode { - public static final String MODE_2_DIMENSIONAL = "2"; - public static final String MODE_3_DIMENSIONAL = "3"; - } - - /** - * Constants for {@link TAG_GPS_SPEED_REF}, - * {@link TAG_GPS_DEST_DISTANCE_REF} - */ - public static interface GpsSpeedRef { - public static final String KILOMETERS = "K"; - public static final String MILES = "M"; - public static final String KNOTS = "N"; - } - - /** - * Constants for {@link TAG_GPS_TRACK_REF}, - * {@link TAG_GPS_IMG_DIRECTION_REF}, {@link TAG_GPS_DEST_BEARING_REF} - */ - public static interface GpsTrackRef { - public static final String TRUE_DIRECTION = "T"; - public static final String MAGNETIC_DIRECTION = "M"; - } - - /** - * Constants for {@link TAG_GPS_DIFFERENTIAL} - */ - public static interface GpsDifferential { - public static final short WITHOUT_DIFFERENTIAL_CORRECTION = 0; - public static final short DIFFERENTIAL_CORRECTION_APPLIED = 1; - } - - private static final String NULL_ARGUMENT_STRING = "Argument is null"; - private ExifData mData = new ExifData(DEFAULT_BYTE_ORDER); - public static final ByteOrder DEFAULT_BYTE_ORDER = ByteOrder.BIG_ENDIAN; - - public ExifInterface() { - mGPSDateStampFormat.setTimeZone(TimeZone.getTimeZone("UTC")); - } - - /** - * Reads the exif tags from a byte array, clearing this ExifInterface - * object's existing exif tags. - * - * @param jpeg a byte array containing a jpeg compressed image. - * @throws IOException - */ - public void readExif(byte[] jpeg) throws IOException { - readExif(new ByteArrayInputStream(jpeg)); - } - - /** - * Reads the exif tags from an InputStream, clearing this ExifInterface - * object's existing exif tags. - * - * @param inStream an InputStream containing a jpeg compressed image. - * @throws IOException - */ - public void readExif(InputStream inStream) throws IOException { - if (inStream == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - ExifData d = null; - try { - d = new ExifReader(this).read(inStream); - } catch (ExifInvalidFormatException e) { - throw new IOException("Invalid exif format : " + e); - } - mData = d; - } - - /** - * Reads the exif tags from a file, clearing this ExifInterface object's - * existing exif tags. - * - * @param inFileName a string representing the filepath to jpeg file. - * @throws FileNotFoundException - * @throws IOException - */ - public void readExif(String inFileName) throws FileNotFoundException, IOException { - if (inFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - InputStream is = null; - try { - is = (InputStream) new BufferedInputStream(new FileInputStream(inFileName)); - readExif(is); - } catch (IOException e) { - closeSilently(is); - throw e; - } - is.close(); - } - - /** - * Sets the exif tags, clearing this ExifInterface object's existing exif - * tags. - * - * @param tags a collection of exif tags to set. - */ - public void setExif(Collection<ExifTag> tags) { - clearExif(); - setTags(tags); - } - - /** - * Clears this ExifInterface object's existing exif tags. - */ - public void clearExif() { - mData = new ExifData(DEFAULT_BYTE_ORDER); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg image, - * removing prior exif tags. - * - * @param jpeg a byte array containing a jpeg compressed image. - * @param exifOutStream an OutputStream to which the jpeg image with added - * exif tags will be written. - * @throws IOException - */ - public void writeExif(byte[] jpeg, OutputStream exifOutStream) throws IOException { - if (jpeg == null || exifOutStream == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = getExifWriterStream(exifOutStream); - s.write(jpeg, 0, jpeg.length); - s.flush(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg compressed - * bitmap, removing prior exif tags. - * - * @param bmap a bitmap to compress and write exif into. - * @param exifOutStream the OutputStream to which the jpeg image with added - * exif tags will be written. - * @throws IOException - */ - public void writeExif(Bitmap bmap, OutputStream exifOutStream) throws IOException { - if (bmap == null || exifOutStream == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = getExifWriterStream(exifOutStream); - bmap.compress(Bitmap.CompressFormat.JPEG, 90, s); - s.flush(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg stream, - * removing prior exif tags. - * - * @param jpegStream an InputStream containing a jpeg compressed image. - * @param exifOutStream an OutputStream to which the jpeg image with added - * exif tags will be written. - * @throws IOException - */ - public void writeExif(InputStream jpegStream, OutputStream exifOutStream) throws IOException { - if (jpegStream == null || exifOutStream == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = getExifWriterStream(exifOutStream); - doExifStreamIO(jpegStream, s); - s.flush(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg image, - * removing prior exif tags. - * - * @param jpeg a byte array containing a jpeg compressed image. - * @param exifOutFileName a String containing the filepath to which the jpeg - * image with added exif tags will be written. - * @throws FileNotFoundException - * @throws IOException - */ - public void writeExif(byte[] jpeg, String exifOutFileName) throws FileNotFoundException, - IOException { - if (jpeg == null || exifOutFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = null; - try { - s = getExifWriterStream(exifOutFileName); - s.write(jpeg, 0, jpeg.length); - s.flush(); - } catch (IOException e) { - closeSilently(s); - throw e; - } - s.close(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg compressed - * bitmap, removing prior exif tags. - * - * @param bmap a bitmap to compress and write exif into. - * @param exifOutFileName a String containing the filepath to which the jpeg - * image with added exif tags will be written. - * @throws FileNotFoundException - * @throws IOException - */ - public void writeExif(Bitmap bmap, String exifOutFileName) throws FileNotFoundException, - IOException { - if (bmap == null || exifOutFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = null; - try { - s = getExifWriterStream(exifOutFileName); - bmap.compress(Bitmap.CompressFormat.JPEG, 90, s); - s.flush(); - } catch (IOException e) { - closeSilently(s); - throw e; - } - s.close(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg stream, - * removing prior exif tags. - * - * @param jpegStream an InputStream containing a jpeg compressed image. - * @param exifOutFileName a String containing the filepath to which the jpeg - * image with added exif tags will be written. - * @throws FileNotFoundException - * @throws IOException - */ - public void writeExif(InputStream jpegStream, String exifOutFileName) - throws FileNotFoundException, IOException { - if (jpegStream == null || exifOutFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream s = null; - try { - s = getExifWriterStream(exifOutFileName); - doExifStreamIO(jpegStream, s); - s.flush(); - } catch (IOException e) { - closeSilently(s); - throw e; - } - s.close(); - } - - /** - * Writes the tags from this ExifInterface object into a jpeg file, removing - * prior exif tags. - * - * @param jpegFileName a String containing the filepath for a jpeg file. - * @param exifOutFileName a String containing the filepath to which the jpeg - * image with added exif tags will be written. - * @throws FileNotFoundException - * @throws IOException - */ - public void writeExif(String jpegFileName, String exifOutFileName) - throws FileNotFoundException, IOException { - if (jpegFileName == null || exifOutFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - InputStream is = null; - try { - is = new FileInputStream(jpegFileName); - writeExif(is, exifOutFileName); - } catch (IOException e) { - closeSilently(is); - throw e; - } - is.close(); - } - - /** - * Wraps an OutputStream object with an ExifOutputStream. Exif tags in this - * ExifInterface object will be added to a jpeg image written to this - * stream, removing prior exif tags. Other methods of this ExifInterface - * object should not be called until the returned OutputStream has been - * closed. - * - * @param outStream an OutputStream to wrap. - * @return an OutputStream that wraps the outStream parameter, and adds exif - * metadata. A jpeg image should be written to this stream. - */ - public OutputStream getExifWriterStream(OutputStream outStream) { - if (outStream == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - ExifOutputStream eos = new ExifOutputStream(outStream, this); - eos.setExifData(mData); - return eos; - } - - /** - * Returns an OutputStream object that writes to a file. Exif tags in this - * ExifInterface object will be added to a jpeg image written to this - * stream, removing prior exif tags. Other methods of this ExifInterface - * object should not be called until the returned OutputStream has been - * closed. - * - * @param exifOutFileName an String containing a filepath for a jpeg file. - * @return an OutputStream that writes to the exifOutFileName file, and adds - * exif metadata. A jpeg image should be written to this stream. - * @throws FileNotFoundException - */ - public OutputStream getExifWriterStream(String exifOutFileName) throws FileNotFoundException { - if (exifOutFileName == null) { - throw new IllegalArgumentException(NULL_ARGUMENT_STRING); - } - OutputStream out = null; - try { - out = (OutputStream) new FileOutputStream(exifOutFileName); - } catch (FileNotFoundException e) { - closeSilently(out); - throw e; - } - return getExifWriterStream(out); - } - - /** - * Attempts to do an in-place rewrite the exif metadata in a file for the - * given tags. If tags do not exist or do not have the same size as the - * existing exif tags, this method will fail. - * - * @param filename a String containing a filepath for a jpeg file with exif - * tags to rewrite. - * @param tags tags that will be written into the jpeg file over existing - * tags if possible. - * @return true if success, false if could not overwrite. If false, no - * changes are made to the file. - * @throws FileNotFoundException - * @throws IOException - */ - public boolean rewriteExif(String filename, Collection<ExifTag> tags) - throws FileNotFoundException, IOException { - RandomAccessFile file = null; - InputStream is = null; - boolean ret; - try { - File temp = new File(filename); - is = new BufferedInputStream(new FileInputStream(temp)); - - // Parse beginning of APP1 in exif to find size of exif header. - ExifParser parser = null; - try { - parser = ExifParser.parse(is, this); - } catch (ExifInvalidFormatException e) { - throw new IOException("Invalid exif format : ", e); - } - long exifSize = parser.getOffsetToExifEndFromSOF(); - - // Free up resources - is.close(); - is = null; - - // Open file for memory mapping. - file = new RandomAccessFile(temp, "rw"); - long fileLength = file.length(); - if (fileLength < exifSize) { - throw new IOException("Filesize changed during operation"); - } - - // Map only exif header into memory. - ByteBuffer buf = file.getChannel().map(MapMode.READ_WRITE, 0, exifSize); - - // Attempt to overwrite tag values without changing lengths (avoids - // file copy). - ret = rewriteExif(buf, tags); - } catch (IOException e) { - closeSilently(file); - throw e; - } finally { - closeSilently(is); - } - file.close(); - return ret; - } - - /** - * Attempts to do an in-place rewrite the exif metadata in a ByteBuffer for - * the given tags. If tags do not exist or do not have the same size as the - * existing exif tags, this method will fail. - * - * @param buf a ByteBuffer containing a jpeg file with existing exif tags to - * rewrite. - * @param tags tags that will be written into the jpeg ByteBuffer over - * existing tags if possible. - * @return true if success, false if could not overwrite. If false, no - * changes are made to the ByteBuffer. - * @throws IOException - */ - public boolean rewriteExif(ByteBuffer buf, Collection<ExifTag> tags) throws IOException { - ExifModifier mod = null; - try { - mod = new ExifModifier(buf, this); - for (ExifTag t : tags) { - mod.modifyTag(t); - } - return mod.commit(); - } catch (ExifInvalidFormatException e) { - throw new IOException("Invalid exif format : " + e); - } - } - - /** - * Attempts to do an in-place rewrite of the exif metadata. If this fails, - * fall back to overwriting file. This preserves tags that are not being - * rewritten. - * - * @param filename a String containing a filepath for a jpeg file. - * @param tags tags that will be written into the jpeg file over existing - * tags if possible. - * @throws FileNotFoundException - * @throws IOException - * @see #rewriteExif - */ - public void forceRewriteExif(String filename, Collection<ExifTag> tags) - throws FileNotFoundException, - IOException { - // Attempt in-place write - if (!rewriteExif(filename, tags)) { - // Fall back to doing a copy - ExifData tempData = mData; - mData = new ExifData(DEFAULT_BYTE_ORDER); - FileInputStream is = null; - ByteArrayOutputStream bytes = null; - try { - is = new FileInputStream(filename); - bytes = new ByteArrayOutputStream(); - doExifStreamIO(is, bytes); - byte[] imageBytes = bytes.toByteArray(); - readExif(imageBytes); - setTags(tags); - writeExif(imageBytes, filename); - } catch (IOException e) { - closeSilently(is); - throw e; - } finally { - is.close(); - // Prevent clobbering of mData - mData = tempData; - } - } - } - - /** - * Attempts to do an in-place rewrite of the exif metadata using the tags in - * this ExifInterface object. If this fails, fall back to overwriting file. - * This preserves tags that are not being rewritten. - * - * @param filename a String containing a filepath for a jpeg file. - * @throws FileNotFoundException - * @throws IOException - * @see #rewriteExif - */ - public void forceRewriteExif(String filename) throws FileNotFoundException, IOException { - forceRewriteExif(filename, getAllTags()); - } - - /** - * Get the exif tags in this ExifInterface object or null if none exist. - * - * @return a List of {@link ExifTag}s. - */ - public List<ExifTag> getAllTags() { - return mData.getAllTags(); - } - - /** - * Returns a list of ExifTags that share a TID (which can be obtained by - * calling {@link #getTrueTagKey} on a defined tag constant) or null if none - * exist. - * - * @param tagId a TID as defined in the exif standard (or with - * {@link #defineTag}). - * @return a List of {@link ExifTag}s. - */ - public List<ExifTag> getTagsForTagId(short tagId) { - return mData.getAllTagsForTagId(tagId); - } - - /** - * Returns a list of ExifTags that share an IFD (which can be obtained by - * calling {@link #getTrueIFD} on a defined tag constant) or null if none - * exist. - * - * @param ifdId an IFD as defined in the exif standard (or with - * {@link #defineTag}). - * @return a List of {@link ExifTag}s. - */ - public List<ExifTag> getTagsForIfdId(int ifdId) { - return mData.getAllTagsForIfd(ifdId); - } - - /** - * Gets an ExifTag for an IFD other than the tag's default. - * - * @see #getTag - */ - public ExifTag getTag(int tagId, int ifdId) { - if (!ExifTag.isValidIfd(ifdId)) { - return null; - } - return mData.getTag(getTrueTagKey(tagId), ifdId); - } - - /** - * Returns the ExifTag in that tag's default IFD for a defined tag constant - * or null if none exists. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return an {@link ExifTag} or null if none exists. - */ - public ExifTag getTag(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTag(tagId, ifdId); - } - - /** - * Gets a tag value for an IFD other than the tag's default. - * - * @see #getTagValue - */ - public Object getTagValue(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - return (t == null) ? null : t.getValue(); - } - - /** - * Returns the value of the ExifTag in that tag's default IFD for a defined - * tag constant or null if none exists or the value could not be cast into - * the return type. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return the value of the ExifTag or null if none exists. - */ - public Object getTagValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagValue(tagId, ifdId); - } - - /* - * Getter methods that are similar to getTagValue. Null is returned if the - * tag value cannot be cast into the return type. - */ - - /** - * @see #getTagValue - */ - public String getTagStringValue(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return null; - } - return t.getValueAsString(); - } - - /** - * @see #getTagValue - */ - public String getTagStringValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagStringValue(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public Long getTagLongValue(int tagId, int ifdId) { - long[] l = getTagLongValues(tagId, ifdId); - if (l == null || l.length <= 0) { - return null; - } - return new Long(l[0]); - } - - /** - * @see #getTagValue - */ - public Long getTagLongValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagLongValue(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public Integer getTagIntValue(int tagId, int ifdId) { - int[] l = getTagIntValues(tagId, ifdId); - if (l == null || l.length <= 0) { - return null; - } - return new Integer(l[0]); - } - - /** - * @see #getTagValue - */ - public Integer getTagIntValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagIntValue(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public Byte getTagByteValue(int tagId, int ifdId) { - byte[] l = getTagByteValues(tagId, ifdId); - if (l == null || l.length <= 0) { - return null; - } - return new Byte(l[0]); - } - - /** - * @see #getTagValue - */ - public Byte getTagByteValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagByteValue(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public Rational getTagRationalValue(int tagId, int ifdId) { - Rational[] l = getTagRationalValues(tagId, ifdId); - if (l == null || l.length == 0) { - return null; - } - return new Rational(l[0]); - } - - /** - * @see #getTagValue - */ - public Rational getTagRationalValue(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagRationalValue(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public long[] getTagLongValues(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return null; - } - return t.getValueAsLongs(); - } - - /** - * @see #getTagValue - */ - public long[] getTagLongValues(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagLongValues(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public int[] getTagIntValues(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return null; - } - return t.getValueAsInts(); - } - - /** - * @see #getTagValue - */ - public int[] getTagIntValues(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagIntValues(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public byte[] getTagByteValues(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return null; - } - return t.getValueAsBytes(); - } - - /** - * @see #getTagValue - */ - public byte[] getTagByteValues(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagByteValues(tagId, ifdId); - } - - /** - * @see #getTagValue - */ - public Rational[] getTagRationalValues(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return null; - } - return t.getValueAsRationals(); - } - - /** - * @see #getTagValue - */ - public Rational[] getTagRationalValues(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return getTagRationalValues(tagId, ifdId); - } - - /** - * Checks whether a tag has a defined number of elements. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return true if the tag has a defined number of elements. - */ - public boolean isTagCountDefined(int tagId) { - int info = getTagInfo().get(tagId); - // No value in info can be zero, as all tags have a non-zero type - if (info == 0) { - return false; - } - return getComponentCountFromInfo(info) != ExifTag.SIZE_UNDEFINED; - } - - /** - * Gets the defined number of elements for a tag. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return the number of elements or {@link ExifTag#SIZE_UNDEFINED} if the - * tag or the number of elements is not defined. - */ - public int getDefinedTagCount(int tagId) { - int info = getTagInfo().get(tagId); - if (info == 0) { - return ExifTag.SIZE_UNDEFINED; - } - return getComponentCountFromInfo(info); - } - - /** - * Gets the number of elements for an ExifTag in a given IFD. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param ifdId the IFD containing the ExifTag to check. - * @return the number of elements in the ExifTag, if the tag's size is - * undefined this will return the actual number of elements that is - * in the ExifTag's value. - */ - public int getActualTagCount(int tagId, int ifdId) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return 0; - } - return t.getComponentCount(); - } - - /** - * Gets the default IFD for a tag. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return the default IFD for a tag definition or {@link #IFD_NULL} if no - * definition exists. - */ - public int getDefinedTagDefaultIfd(int tagId) { - int info = getTagInfo().get(tagId); - if (info == DEFINITION_NULL) { - return IFD_NULL; - } - return getTrueIfd(tagId); - } - - /** - * Gets the defined type for a tag. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @return the type. - * @see ExifTag#getDataType() - */ - public short getDefinedTagType(int tagId) { - int info = getTagInfo().get(tagId); - if (info == 0) { - return -1; - } - return getTypeFromInfo(info); - } - - /** - * Returns true if tag TID is one of the following: {@link TAG_EXIF_IFD}, - * {@link TAG_GPS_IFD}, {@link TAG_JPEG_INTERCHANGE_FORMAT}, - * {@link TAG_STRIP_OFFSETS}, {@link TAG_INTEROPERABILITY_IFD} - * <p> - * Note: defining tags with these TID's is disallowed. - * - * @param tag a tag's TID (can be obtained from a defined tag constant with - * {@link #getTrueTagKey}). - * @return true if the TID is that of an offset tag. - */ - protected static boolean isOffsetTag(short tag) { - return sOffsetTags.contains(tag); - } - - /** - * Creates a tag for a defined tag constant in a given IFD if that IFD is - * allowed for the tag. This method will fail anytime the appropriate - * {@link ExifTag#setValue} for this tag's datatype would fail. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param ifdId the IFD that the tag should be in. - * @param val the value of the tag to set. - * @return an ExifTag object or null if one could not be constructed. - * @see #buildTag - */ - public ExifTag buildTag(int tagId, int ifdId, Object val) { - int info = getTagInfo().get(tagId); - if (info == 0 || val == null) { - return null; - } - short type = getTypeFromInfo(info); - int definedCount = getComponentCountFromInfo(info); - boolean hasDefinedCount = (definedCount != ExifTag.SIZE_UNDEFINED); - if (!ExifInterface.isIfdAllowed(info, ifdId)) { - return null; - } - ExifTag t = new ExifTag(getTrueTagKey(tagId), type, definedCount, ifdId, hasDefinedCount); - if (!t.setValue(val)) { - return null; - } - return t; - } - - /** - * Creates a tag for a defined tag constant in the tag's default IFD. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param val the tag's value. - * @return an ExifTag object. - */ - public ExifTag buildTag(int tagId, Object val) { - int ifdId = getTrueIfd(tagId); - return buildTag(tagId, ifdId, val); - } - - protected ExifTag buildUninitializedTag(int tagId) { - int info = getTagInfo().get(tagId); - if (info == 0) { - return null; - } - short type = getTypeFromInfo(info); - int definedCount = getComponentCountFromInfo(info); - boolean hasDefinedCount = (definedCount != ExifTag.SIZE_UNDEFINED); - int ifdId = getTrueIfd(tagId); - ExifTag t = new ExifTag(getTrueTagKey(tagId), type, definedCount, ifdId, hasDefinedCount); - return t; - } - - /** - * Sets the value of an ExifTag if it exists in the given IFD. The value - * must be the correct type and length for that ExifTag. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param ifdId the IFD that the ExifTag is in. - * @param val the value to set. - * @return true if success, false if the ExifTag doesn't exist or the value - * is the wrong type/length. - * @see #setTagValue - */ - public boolean setTagValue(int tagId, int ifdId, Object val) { - ExifTag t = getTag(tagId, ifdId); - if (t == null) { - return false; - } - return t.setValue(val); - } - - /** - * Sets the value of an ExifTag if it exists it's default IFD. The value - * must be the correct type and length for that ExifTag. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param val the value to set. - * @return true if success, false if the ExifTag doesn't exist or the value - * is the wrong type/length. - */ - public boolean setTagValue(int tagId, Object val) { - int ifdId = getDefinedTagDefaultIfd(tagId); - return setTagValue(tagId, ifdId, val); - } - - /** - * Puts an ExifTag into this ExifInterface object's tags, removing a - * previous ExifTag with the same TID and IFD. The IFD it is put into will - * be the one the tag was created with in {@link #buildTag}. - * - * @param tag an ExifTag to put into this ExifInterface's tags. - * @return the previous ExifTag with the same TID and IFD or null if none - * exists. - */ - public ExifTag setTag(ExifTag tag) { - return mData.addTag(tag); - } - - /** - * Puts a collection of ExifTags into this ExifInterface objects's tags. Any - * previous ExifTags with the same TID and IFDs will be removed. - * - * @param tags a Collection of ExifTags. - * @see #setTag - */ - public void setTags(Collection<ExifTag> tags) { - for (ExifTag t : tags) { - setTag(t); - } - } - - /** - * Removes the ExifTag for a tag constant from the given IFD. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - * @param ifdId the IFD of the ExifTag to remove. - */ - public void deleteTag(int tagId, int ifdId) { - mData.removeTag(getTrueTagKey(tagId), ifdId); - } - - /** - * Removes the ExifTag for a tag constant from that tag's default IFD. - * - * @param tagId a tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - */ - public void deleteTag(int tagId) { - int ifdId = getDefinedTagDefaultIfd(tagId); - deleteTag(tagId, ifdId); - } - - /** - * Creates a new tag definition in this ExifInterface object for a given TID - * and default IFD. Creating a definition with the same TID and default IFD - * as a previous definition will override it. - * - * @param tagId the TID for the tag. - * @param defaultIfd the default IFD for the tag. - * @param tagType the type of the tag (see {@link ExifTag#getDataType()}). - * @param defaultComponentCount the number of elements of this tag's type in - * the tags value. - * @param allowedIfds the IFD's this tag is allowed to be put in. - * @return the defined tag constant (e.g. {@link #TAG_IMAGE_WIDTH}) or - * {@link #TAG_NULL} if the definition could not be made. - */ - public int setTagDefinition(short tagId, int defaultIfd, short tagType, - short defaultComponentCount, int[] allowedIfds) { - if (sBannedDefines.contains(tagId)) { - return TAG_NULL; - } - if (ExifTag.isValidType(tagType) && ExifTag.isValidIfd(defaultIfd)) { - int tagDef = defineTag(defaultIfd, tagId); - if (tagDef == TAG_NULL) { - return TAG_NULL; - } - int[] otherDefs = getTagDefinitionsForTagId(tagId); - SparseIntArray infos = getTagInfo(); - // Make sure defaultIfd is in allowedIfds - boolean defaultCheck = false; - for (int i : allowedIfds) { - if (defaultIfd == i) { - defaultCheck = true; - } - if (!ExifTag.isValidIfd(i)) { - return TAG_NULL; - } - } - if (!defaultCheck) { - return TAG_NULL; - } - - int ifdFlags = getFlagsFromAllowedIfds(allowedIfds); - // Make sure no identical tags can exist in allowedIfds - if (otherDefs != null) { - for (int def : otherDefs) { - int tagInfo = infos.get(def); - int allowedFlags = getAllowedIfdFlagsFromInfo(tagInfo); - if ((ifdFlags & allowedFlags) != 0) { - return TAG_NULL; - } - } - } - getTagInfo().put(tagDef, ifdFlags << 24 | (tagType << 16) | defaultComponentCount); - return tagDef; - } - return TAG_NULL; - } - - protected int getTagDefinition(short tagId, int defaultIfd) { - return getTagInfo().get(defineTag(defaultIfd, tagId)); - } - - protected int[] getTagDefinitionsForTagId(short tagId) { - int[] ifds = IfdData.getIfds(); - int[] defs = new int[ifds.length]; - int counter = 0; - SparseIntArray infos = getTagInfo(); - for (int i : ifds) { - int def = defineTag(i, tagId); - if (infos.get(def) != DEFINITION_NULL) { - defs[counter++] = def; - } - } - if (counter == 0) { - return null; - } - - return Arrays.copyOfRange(defs, 0, counter); - } - - protected int getTagDefinitionForTag(ExifTag tag) { - short type = tag.getDataType(); - int count = tag.getComponentCount(); - int ifd = tag.getIfd(); - return getTagDefinitionForTag(tag.getTagId(), type, count, ifd); - } - - protected int getTagDefinitionForTag(short tagId, short type, int count, int ifd) { - int[] defs = getTagDefinitionsForTagId(tagId); - if (defs == null) { - return TAG_NULL; - } - SparseIntArray infos = getTagInfo(); - int ret = TAG_NULL; - for (int i : defs) { - int info = infos.get(i); - short def_type = getTypeFromInfo(info); - int def_count = getComponentCountFromInfo(info); - int[] def_ifds = getAllowedIfdsFromInfo(info); - boolean valid_ifd = false; - for (int j : def_ifds) { - if (j == ifd) { - valid_ifd = true; - break; - } - } - if (valid_ifd && type == def_type - && (count == def_count || def_count == ExifTag.SIZE_UNDEFINED)) { - ret = i; - break; - } - } - return ret; - } - - /** - * Removes a tag definition for given defined tag constant. - * - * @param tagId a defined tag constant, e.g. {@link #TAG_IMAGE_WIDTH}. - */ - public void removeTagDefinition(int tagId) { - getTagInfo().delete(tagId); - } - - /** - * Resets tag definitions to the default ones. - */ - public void resetTagDefinitions() { - mTagInfo = null; - } - - /** - * Returns the thumbnail from IFD1 as a bitmap, or null if none exists. - * - * @return the thumbnail as a bitmap. - */ - public Bitmap getThumbnailBitmap() { - if (mData.hasCompressedThumbnail()) { - byte[] thumb = mData.getCompressedThumbnail(); - return BitmapFactory.decodeByteArray(thumb, 0, thumb.length); - } else if (mData.hasUncompressedStrip()) { - // TODO: implement uncompressed - } - return null; - } - - /** - * Returns the thumbnail from IFD1 as a byte array, or null if none exists. - * The bytes may either be an uncompressed strip as specified in the exif - * standard or a jpeg compressed image. - * - * @return the thumbnail as a byte array. - */ - public byte[] getThumbnailBytes() { - if (mData.hasCompressedThumbnail()) { - return mData.getCompressedThumbnail(); - } else if (mData.hasUncompressedStrip()) { - // TODO: implement this - } - return null; - } - - /** - * Returns the thumbnail if it is jpeg compressed, or null if none exists. - * - * @return the thumbnail as a byte array. - */ - public byte[] getThumbnail() { - return mData.getCompressedThumbnail(); - } - - /** - * Check if thumbnail is compressed. - * - * @return true if the thumbnail is compressed. - */ - public boolean isThumbnailCompressed() { - return mData.hasCompressedThumbnail(); - } - - /** - * Check if thumbnail exists. - * - * @return true if a compressed thumbnail exists. - */ - public boolean hasThumbnail() { - // TODO: add back in uncompressed strip - return mData.hasCompressedThumbnail(); - } - - // TODO: uncompressed thumbnail setters - - /** - * Sets the thumbnail to be a jpeg compressed image. Clears any prior - * thumbnail. - * - * @param thumb a byte array containing a jpeg compressed image. - * @return true if the thumbnail was set. - */ - public boolean setCompressedThumbnail(byte[] thumb) { - mData.clearThumbnailAndStrips(); - mData.setCompressedThumbnail(thumb); - return true; - } - - /** - * Sets the thumbnail to be a jpeg compressed bitmap. Clears any prior - * thumbnail. - * - * @param thumb a bitmap to compress to a jpeg thumbnail. - * @return true if the thumbnail was set. - */ - public boolean setCompressedThumbnail(Bitmap thumb) { - ByteArrayOutputStream thumbnail = new ByteArrayOutputStream(); - if (!thumb.compress(Bitmap.CompressFormat.JPEG, 90, thumbnail)) { - return false; - } - return setCompressedThumbnail(thumbnail.toByteArray()); - } - - /** - * Clears the compressed thumbnail if it exists. - */ - public void removeCompressedThumbnail() { - mData.setCompressedThumbnail(null); - } - - // Convenience methods: - - /** - * Decodes the user comment tag into string as specified in the EXIF - * standard. Returns null if decoding failed. - */ - public String getUserComment() { - return mData.getUserComment(); - } - - /** - * Returns the Orientation ExifTag value for a given number of degrees. - * - * @param degrees the amount an image is rotated in degrees. - */ - public static short getOrientationValueForRotation(int degrees) { - degrees %= 360; - if (degrees < 0) { - degrees += 360; - } - if (degrees < 90) { - return Orientation.TOP_LEFT; // 0 degrees - } else if (degrees < 180) { - return Orientation.RIGHT_TOP; // 90 degrees cw - } else if (degrees < 270) { - return Orientation.BOTTOM_LEFT; // 180 degrees - } else { - return Orientation.RIGHT_BOTTOM; // 270 degrees cw - } - } - - /** - * Returns the rotation degrees corresponding to an ExifTag Orientation - * value. - * - * @param orientation the ExifTag Orientation value. - */ - public static int getRotationForOrientationValue(short orientation) { - switch (orientation) { - case Orientation.TOP_LEFT: - return 0; - case Orientation.RIGHT_TOP: - return 90; - case Orientation.BOTTOM_LEFT: - return 180; - case Orientation.RIGHT_BOTTOM: - return 270; - default: - return 0; - } - } - - /** - * Gets the double representation of the GPS latitude or longitude - * coordinate. - * - * @param coordinate an array of 3 Rationals representing the degrees, - * minutes, and seconds of the GPS location as defined in the - * exif specification. - * @param reference a GPS reference reperesented by a String containing "N", - * "S", "E", or "W". - * @return the GPS coordinate represented as degrees + minutes/60 + - * seconds/3600 - */ - public static double convertLatOrLongToDouble(Rational[] coordinate, String reference) { - try { - double degrees = coordinate[0].toDouble(); - double minutes = coordinate[1].toDouble(); - double seconds = coordinate[2].toDouble(); - double result = degrees + minutes / 60.0 + seconds / 3600.0; - if ((reference.equals("S") || reference.equals("W"))) { - return -result; - } - return result; - } catch (ArrayIndexOutOfBoundsException e) { - throw new IllegalArgumentException(); - } - } - - /** - * Gets the GPS latitude and longitude as a pair of doubles from this - * ExifInterface object's tags, or null if the necessary tags do not exist. - * - * @return an array of 2 doubles containing the latitude, and longitude - * respectively. - * @see #convertLatOrLongToDouble - */ - public double[] getLatLongAsDoubles() { - Rational[] latitude = getTagRationalValues(TAG_GPS_LATITUDE); - String latitudeRef = getTagStringValue(TAG_GPS_LATITUDE_REF); - Rational[] longitude = getTagRationalValues(TAG_GPS_LONGITUDE); - String longitudeRef = getTagStringValue(TAG_GPS_LONGITUDE_REF); - if (latitude == null || longitude == null || latitudeRef == null || longitudeRef == null - || latitude.length < 3 || longitude.length < 3) { - return null; - } - double[] latLon = new double[2]; - latLon[0] = convertLatOrLongToDouble(latitude, latitudeRef); - latLon[1] = convertLatOrLongToDouble(longitude, longitudeRef); - return latLon; - } - - private static final String GPS_DATE_FORMAT_STR = "yyyy:MM:dd"; - private static final String DATETIME_FORMAT_STR = "yyyy:MM:dd kk:mm:ss"; - private final DateFormat mDateTimeStampFormat = new SimpleDateFormat(DATETIME_FORMAT_STR); - private final DateFormat mGPSDateStampFormat = new SimpleDateFormat(GPS_DATE_FORMAT_STR); - private final Calendar mGPSTimeStampCalendar = Calendar - .getInstance(TimeZone.getTimeZone("UTC")); - - /** - * Creates, formats, and sets the DateTimeStamp tag for one of: - * {@link #TAG_DATE_TIME}, {@link #TAG_DATE_TIME_DIGITIZED}, - * {@link #TAG_DATE_TIME_ORIGINAL}. - * - * @param tagId one of the DateTimeStamp tags. - * @param timestamp a timestamp to format. - * @param timezone a TimeZone object. - * @return true if success, false if the tag could not be set. - */ - public boolean addDateTimeStampTag(int tagId, long timestamp, TimeZone timezone) { - if (tagId == TAG_DATE_TIME || tagId == TAG_DATE_TIME_DIGITIZED - || tagId == TAG_DATE_TIME_ORIGINAL) { - mDateTimeStampFormat.setTimeZone(timezone); - ExifTag t = buildTag(tagId, mDateTimeStampFormat.format(timestamp)); - if (t == null) { - return false; - } - setTag(t); - } else { - return false; - } - return true; - } - - /** - * Creates and sets all to the GPS tags for a give latitude and longitude. - * - * @param latitude a GPS latitude coordinate. - * @param longitude a GPS longitude coordinate. - * @return true if success, false if they could not be created or set. - */ - public boolean addGpsTags(double latitude, double longitude) { - ExifTag latTag = buildTag(TAG_GPS_LATITUDE, toExifLatLong(latitude)); - ExifTag longTag = buildTag(TAG_GPS_LONGITUDE, toExifLatLong(longitude)); - ExifTag latRefTag = buildTag(TAG_GPS_LATITUDE_REF, - latitude >= 0 ? ExifInterface.GpsLatitudeRef.NORTH - : ExifInterface.GpsLatitudeRef.SOUTH); - ExifTag longRefTag = buildTag(TAG_GPS_LONGITUDE_REF, - longitude >= 0 ? ExifInterface.GpsLongitudeRef.EAST - : ExifInterface.GpsLongitudeRef.WEST); - if (latTag == null || longTag == null || latRefTag == null || longRefTag == null) { - return false; - } - setTag(latTag); - setTag(longTag); - setTag(latRefTag); - setTag(longRefTag); - return true; - } - - /** - * Creates and sets the GPS timestamp tag. - * - * @param timestamp a GPS timestamp. - * @return true if success, false if could not be created or set. - */ - public boolean addGpsDateTimeStampTag(long timestamp) { - ExifTag t = buildTag(TAG_GPS_DATE_STAMP, mGPSDateStampFormat.format(timestamp)); - if (t == null) { - return false; - } - setTag(t); - mGPSTimeStampCalendar.setTimeInMillis(timestamp); - t = buildTag(TAG_GPS_TIME_STAMP, new Rational[] { - new Rational(mGPSTimeStampCalendar.get(Calendar.HOUR_OF_DAY), 1), - new Rational(mGPSTimeStampCalendar.get(Calendar.MINUTE), 1), - new Rational(mGPSTimeStampCalendar.get(Calendar.SECOND), 1) - }); - if (t == null) { - return false; - } - setTag(t); - return true; - } - - private static Rational[] toExifLatLong(double value) { - // convert to the format dd/1 mm/1 ssss/100 - value = Math.abs(value); - int degrees = (int) value; - value = (value - degrees) * 60; - int minutes = (int) value; - value = (value - minutes) * 6000; - int seconds = (int) value; - return new Rational[] { - new Rational(degrees, 1), new Rational(minutes, 1), new Rational(seconds, 100) - }; - } - - private void doExifStreamIO(InputStream is, OutputStream os) throws IOException { - byte[] buf = new byte[1024]; - int ret = is.read(buf, 0, 1024); - while (ret != -1) { - os.write(buf, 0, ret); - ret = is.read(buf, 0, 1024); - } - } - - protected static void closeSilently(Closeable c) { - if (c != null) { - try { - c.close(); - } catch (Throwable e) { - // ignored - } - } - } - - private SparseIntArray mTagInfo = null; - - protected SparseIntArray getTagInfo() { - if (mTagInfo == null) { - mTagInfo = new SparseIntArray(); - initTagInfo(); - } - return mTagInfo; - } - - private void initTagInfo() { - /** - * We put tag information in a 4-bytes integer. The first byte a bitmask - * representing the allowed IFDs of the tag, the second byte is the data - * type, and the last two byte are a short value indicating the default - * component count of this tag. - */ - // IFD0 tags - int[] ifdAllowedIfds = { - IfdId.TYPE_IFD_0, IfdId.TYPE_IFD_1 - }; - int ifdFlags = getFlagsFromAllowedIfds(ifdAllowedIfds) << 24; - mTagInfo.put(ExifInterface.TAG_MAKE, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_IMAGE_WIDTH, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_IMAGE_LENGTH, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_BITS_PER_SAMPLE, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 3); - mTagInfo.put(ExifInterface.TAG_COMPRESSION, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_PHOTOMETRIC_INTERPRETATION, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_ORIENTATION, ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 - | 1); - mTagInfo.put(ExifInterface.TAG_SAMPLES_PER_PIXEL, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_PLANAR_CONFIGURATION, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_Y_CB_CR_SUB_SAMPLING, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 2); - mTagInfo.put(ExifInterface.TAG_Y_CB_CR_POSITIONING, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_X_RESOLUTION, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_Y_RESOLUTION, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_RESOLUTION_UNIT, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_STRIP_OFFSETS, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_ROWS_PER_STRIP, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_STRIP_BYTE_COUNTS, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_TRANSFER_FUNCTION, - ifdFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 3 * 256); - mTagInfo.put(ExifInterface.TAG_WHITE_POINT, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 2); - mTagInfo.put(ExifInterface.TAG_PRIMARY_CHROMATICITIES, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 6); - mTagInfo.put(ExifInterface.TAG_Y_CB_CR_COEFFICIENTS, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 3); - mTagInfo.put(ExifInterface.TAG_REFERENCE_BLACK_WHITE, - ifdFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 6); - mTagInfo.put(ExifInterface.TAG_DATE_TIME, - ifdFlags | ExifTag.TYPE_ASCII << 16 | 20); - mTagInfo.put(ExifInterface.TAG_IMAGE_DESCRIPTION, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_MAKE, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_MODEL, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_SOFTWARE, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_ARTIST, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_COPYRIGHT, - ifdFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_EXIF_IFD, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_IFD, - ifdFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - // IFD1 tags - int[] ifd1AllowedIfds = { - IfdId.TYPE_IFD_1 - }; - int ifdFlags1 = getFlagsFromAllowedIfds(ifd1AllowedIfds) << 24; - mTagInfo.put(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT, - ifdFlags1 | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH, - ifdFlags1 | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - // Exif tags - int[] exifAllowedIfds = { - IfdId.TYPE_IFD_EXIF - }; - int exifFlags = getFlagsFromAllowedIfds(exifAllowedIfds) << 24; - mTagInfo.put(ExifInterface.TAG_EXIF_VERSION, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | 4); - mTagInfo.put(ExifInterface.TAG_FLASHPIX_VERSION, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | 4); - mTagInfo.put(ExifInterface.TAG_COLOR_SPACE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_COMPONENTS_CONFIGURATION, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | 4); - mTagInfo.put(ExifInterface.TAG_COMPRESSED_BITS_PER_PIXEL, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_PIXEL_X_DIMENSION, - exifFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_PIXEL_Y_DIMENSION, - exifFlags | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - mTagInfo.put(ExifInterface.TAG_MAKER_NOTE, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_USER_COMMENT, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_RELATED_SOUND_FILE, - exifFlags | ExifTag.TYPE_ASCII << 16 | 13); - mTagInfo.put(ExifInterface.TAG_DATE_TIME_ORIGINAL, - exifFlags | ExifTag.TYPE_ASCII << 16 | 20); - mTagInfo.put(ExifInterface.TAG_DATE_TIME_DIGITIZED, - exifFlags | ExifTag.TYPE_ASCII << 16 | 20); - mTagInfo.put(ExifInterface.TAG_SUB_SEC_TIME, - exifFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_SUB_SEC_TIME_ORIGINAL, - exifFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_SUB_SEC_TIME_DIGITIZED, - exifFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_IMAGE_UNIQUE_ID, - exifFlags | ExifTag.TYPE_ASCII << 16 | 33); - mTagInfo.put(ExifInterface.TAG_EXPOSURE_TIME, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_F_NUMBER, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_EXPOSURE_PROGRAM, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SPECTRAL_SENSITIVITY, - exifFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_ISO_SPEED_RATINGS, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_OECF, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_SHUTTER_SPEED_VALUE, - exifFlags | ExifTag.TYPE_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_APERTURE_VALUE, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_BRIGHTNESS_VALUE, - exifFlags | ExifTag.TYPE_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_EXPOSURE_BIAS_VALUE, - exifFlags | ExifTag.TYPE_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_MAX_APERTURE_VALUE, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SUBJECT_DISTANCE, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_METERING_MODE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_LIGHT_SOURCE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FLASH, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FOCAL_LENGTH, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SUBJECT_AREA, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_FLASH_ENERGY, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SPATIAL_FREQUENCY_RESPONSE, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_FOCAL_PLANE_X_RESOLUTION, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FOCAL_PLANE_Y_RESOLUTION, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FOCAL_PLANE_RESOLUTION_UNIT, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SUBJECT_LOCATION, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 2); - mTagInfo.put(ExifInterface.TAG_EXPOSURE_INDEX, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SENSING_METHOD, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FILE_SOURCE, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SCENE_TYPE, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | 1); - mTagInfo.put(ExifInterface.TAG_CFA_PATTERN, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_CUSTOM_RENDERED, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_EXPOSURE_MODE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_WHITE_BALANCE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_DIGITAL_ZOOM_RATIO, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_FOCAL_LENGTH_IN_35_MM_FILE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SCENE_CAPTURE_TYPE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GAIN_CONTROL, - exifFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_CONTRAST, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SATURATION, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_SHARPNESS, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_DEVICE_SETTING_DESCRIPTION, - exifFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_SUBJECT_DISTANCE_RANGE, - exifFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 1); - mTagInfo.put(ExifInterface.TAG_INTEROPERABILITY_IFD, exifFlags - | ExifTag.TYPE_UNSIGNED_LONG << 16 | 1); - // GPS tag - int[] gpsAllowedIfds = { - IfdId.TYPE_IFD_GPS - }; - int gpsFlags = getFlagsFromAllowedIfds(gpsAllowedIfds) << 24; - mTagInfo.put(ExifInterface.TAG_GPS_VERSION_ID, - gpsFlags | ExifTag.TYPE_UNSIGNED_BYTE << 16 | 4); - mTagInfo.put(ExifInterface.TAG_GPS_LATITUDE_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_LONGITUDE_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_LATITUDE, - gpsFlags | ExifTag.TYPE_RATIONAL << 16 | 3); - mTagInfo.put(ExifInterface.TAG_GPS_LONGITUDE, - gpsFlags | ExifTag.TYPE_RATIONAL << 16 | 3); - mTagInfo.put(ExifInterface.TAG_GPS_ALTITUDE_REF, - gpsFlags | ExifTag.TYPE_UNSIGNED_BYTE << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_ALTITUDE, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_TIME_STAMP, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 3); - mTagInfo.put(ExifInterface.TAG_GPS_SATTELLITES, - gpsFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_GPS_STATUS, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_MEASURE_MODE, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_DOP, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_SPEED_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_SPEED, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_TRACK_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_TRACK, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_IMG_DIRECTION_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_IMG_DIRECTION, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_MAP_DATUM, - gpsFlags | ExifTag.TYPE_ASCII << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_LATITUDE_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_LATITUDE, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_BEARING_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_BEARING, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_DISTANCE_REF, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 2); - mTagInfo.put(ExifInterface.TAG_GPS_DEST_DISTANCE, - gpsFlags | ExifTag.TYPE_UNSIGNED_RATIONAL << 16 | 1); - mTagInfo.put(ExifInterface.TAG_GPS_PROCESSING_METHOD, - gpsFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_GPS_AREA_INFORMATION, - gpsFlags | ExifTag.TYPE_UNDEFINED << 16 | ExifTag.SIZE_UNDEFINED); - mTagInfo.put(ExifInterface.TAG_GPS_DATE_STAMP, - gpsFlags | ExifTag.TYPE_ASCII << 16 | 11); - mTagInfo.put(ExifInterface.TAG_GPS_DIFFERENTIAL, - gpsFlags | ExifTag.TYPE_UNSIGNED_SHORT << 16 | 11); - // Interoperability tag - int[] interopAllowedIfds = { - IfdId.TYPE_IFD_INTEROPERABILITY - }; - int interopFlags = getFlagsFromAllowedIfds(interopAllowedIfds) << 24; - mTagInfo.put(TAG_INTEROPERABILITY_INDEX, interopFlags | ExifTag.TYPE_ASCII << 16 - | ExifTag.SIZE_UNDEFINED); - } - - protected static int getAllowedIfdFlagsFromInfo(int info) { - return info >>> 24; - } - - protected static int[] getAllowedIfdsFromInfo(int info) { - int ifdFlags = getAllowedIfdFlagsFromInfo(info); - int[] ifds = IfdData.getIfds(); - ArrayList<Integer> l = new ArrayList<Integer>(); - for (int i = 0; i < IfdId.TYPE_IFD_COUNT; i++) { - int flag = (ifdFlags >> i) & 1; - if (flag == 1) { - l.add(ifds[i]); - } - } - if (l.size() <= 0) { - return null; - } - int[] ret = new int[l.size()]; - int j = 0; - for (int i : l) { - ret[j++] = i; - } - return ret; - } - - protected static boolean isIfdAllowed(int info, int ifd) { - int[] ifds = IfdData.getIfds(); - int ifdFlags = getAllowedIfdFlagsFromInfo(info); - for (int i = 0; i < ifds.length; i++) { - if (ifd == ifds[i] && ((ifdFlags >> i) & 1) == 1) { - return true; - } - } - return false; - } - - protected static int getFlagsFromAllowedIfds(int[] allowedIfds) { - if (allowedIfds == null || allowedIfds.length == 0) { - return 0; - } - int flags = 0; - int[] ifds = IfdData.getIfds(); - for (int i = 0; i < IfdId.TYPE_IFD_COUNT; i++) { - for (int j : allowedIfds) { - if (ifds[i] == j) { - flags |= 1 << i; - break; - } - } - } - return flags; - } - - protected static short getTypeFromInfo(int info) { - return (short) ((info >> 16) & 0x0ff); - } - - protected static int getComponentCountFromInfo(int info) { - return info & 0x0ffff; - } - -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifInvalidFormatException.java b/gallerycommon/src/com/android/gallery3d/exif/ExifInvalidFormatException.java deleted file mode 100644 index bf923ec26..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifInvalidFormatException.java +++ /dev/null @@ -1,23 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -public class ExifInvalidFormatException extends Exception { - public ExifInvalidFormatException(String meg) { - super(meg); - } -}
\ No newline at end of file diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifModifier.java b/gallerycommon/src/com/android/gallery3d/exif/ExifModifier.java deleted file mode 100644 index f00362b6b..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifModifier.java +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import android.util.Log; - -import java.io.Closeable; -import java.io.IOException; -import java.io.InputStream; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.util.ArrayList; -import java.util.List; - -class ExifModifier { - public static final String TAG = "ExifModifier"; - public static final boolean DEBUG = false; - private final ByteBuffer mByteBuffer; - private final ExifData mTagToModified; - private final List<TagOffset> mTagOffsets = new ArrayList<TagOffset>(); - private final ExifInterface mInterface; - private int mOffsetBase; - - private static class TagOffset { - final int mOffset; - final ExifTag mTag; - - TagOffset(ExifTag tag, int offset) { - mTag = tag; - mOffset = offset; - } - } - - protected ExifModifier(ByteBuffer byteBuffer, ExifInterface iRef) throws IOException, - ExifInvalidFormatException { - mByteBuffer = byteBuffer; - mOffsetBase = byteBuffer.position(); - mInterface = iRef; - InputStream is = null; - try { - is = new ByteBufferInputStream(byteBuffer); - // Do not require any IFD; - ExifParser parser = ExifParser.parse(is, mInterface); - mTagToModified = new ExifData(parser.getByteOrder()); - mOffsetBase += parser.getTiffStartPosition(); - mByteBuffer.position(0); - } finally { - ExifInterface.closeSilently(is); - } - } - - protected ByteOrder getByteOrder() { - return mTagToModified.getByteOrder(); - } - - protected boolean commit() throws IOException, ExifInvalidFormatException { - InputStream is = null; - try { - is = new ByteBufferInputStream(mByteBuffer); - int flag = 0; - IfdData[] ifdDatas = new IfdData[] { - mTagToModified.getIfdData(IfdId.TYPE_IFD_0), - mTagToModified.getIfdData(IfdId.TYPE_IFD_1), - mTagToModified.getIfdData(IfdId.TYPE_IFD_EXIF), - mTagToModified.getIfdData(IfdId.TYPE_IFD_INTEROPERABILITY), - mTagToModified.getIfdData(IfdId.TYPE_IFD_GPS) - }; - - if (ifdDatas[IfdId.TYPE_IFD_0] != null) { - flag |= ExifParser.OPTION_IFD_0; - } - if (ifdDatas[IfdId.TYPE_IFD_1] != null) { - flag |= ExifParser.OPTION_IFD_1; - } - if (ifdDatas[IfdId.TYPE_IFD_EXIF] != null) { - flag |= ExifParser.OPTION_IFD_EXIF; - } - if (ifdDatas[IfdId.TYPE_IFD_GPS] != null) { - flag |= ExifParser.OPTION_IFD_GPS; - } - if (ifdDatas[IfdId.TYPE_IFD_INTEROPERABILITY] != null) { - flag |= ExifParser.OPTION_IFD_INTEROPERABILITY; - } - - ExifParser parser = ExifParser.parse(is, flag, mInterface); - int event = parser.next(); - IfdData currIfd = null; - while (event != ExifParser.EVENT_END) { - switch (event) { - case ExifParser.EVENT_START_OF_IFD: - currIfd = ifdDatas[parser.getCurrentIfd()]; - if (currIfd == null) { - parser.skipRemainingTagsInCurrentIfd(); - } - break; - case ExifParser.EVENT_NEW_TAG: - ExifTag oldTag = parser.getTag(); - ExifTag newTag = currIfd.getTag(oldTag.getTagId()); - if (newTag != null) { - if (newTag.getComponentCount() != oldTag.getComponentCount() - || newTag.getDataType() != oldTag.getDataType()) { - return false; - } else { - mTagOffsets.add(new TagOffset(newTag, oldTag.getOffset())); - currIfd.removeTag(oldTag.getTagId()); - if (currIfd.getTagCount() == 0) { - parser.skipRemainingTagsInCurrentIfd(); - } - } - } - break; - } - event = parser.next(); - } - for (IfdData ifd : ifdDatas) { - if (ifd != null && ifd.getTagCount() > 0) { - return false; - } - } - modify(); - } finally { - ExifInterface.closeSilently(is); - } - return true; - } - - private void modify() { - mByteBuffer.order(getByteOrder()); - for (TagOffset tagOffset : mTagOffsets) { - writeTagValue(tagOffset.mTag, tagOffset.mOffset); - } - } - - private void writeTagValue(ExifTag tag, int offset) { - if (DEBUG) { - Log.v(TAG, "modifying tag to: \n" + tag.toString()); - Log.v(TAG, "at offset: " + offset); - } - mByteBuffer.position(offset + mOffsetBase); - switch (tag.getDataType()) { - case ExifTag.TYPE_ASCII: - byte buf[] = tag.getStringByte(); - if (buf.length == tag.getComponentCount()) { - buf[buf.length - 1] = 0; - mByteBuffer.put(buf); - } else { - mByteBuffer.put(buf); - mByteBuffer.put((byte) 0); - } - break; - case ExifTag.TYPE_LONG: - case ExifTag.TYPE_UNSIGNED_LONG: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - mByteBuffer.putInt((int) tag.getValueAt(i)); - } - break; - case ExifTag.TYPE_RATIONAL: - case ExifTag.TYPE_UNSIGNED_RATIONAL: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - Rational v = tag.getRational(i); - mByteBuffer.putInt((int) v.getNumerator()); - mByteBuffer.putInt((int) v.getDenominator()); - } - break; - case ExifTag.TYPE_UNDEFINED: - case ExifTag.TYPE_UNSIGNED_BYTE: - buf = new byte[tag.getComponentCount()]; - tag.getBytes(buf); - mByteBuffer.put(buf); - break; - case ExifTag.TYPE_UNSIGNED_SHORT: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - mByteBuffer.putShort((short) tag.getValueAt(i)); - } - break; - } - } - - public void modifyTag(ExifTag tag) { - mTagToModified.addTag(tag); - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifOutputStream.java b/gallerycommon/src/com/android/gallery3d/exif/ExifOutputStream.java deleted file mode 100644 index 7ca05f2e0..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifOutputStream.java +++ /dev/null @@ -1,518 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import android.util.Log; - -import java.io.BufferedOutputStream; -import java.io.FilterOutputStream; -import java.io.IOException; -import java.io.OutputStream; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; -import java.util.ArrayList; - -/** - * This class provides a way to replace the Exif header of a JPEG image. - * <p> - * Below is an example of writing EXIF data into a file - * - * <pre> - * public static void writeExif(byte[] jpeg, ExifData exif, String path) { - * OutputStream os = null; - * try { - * os = new FileOutputStream(path); - * ExifOutputStream eos = new ExifOutputStream(os); - * // Set the exif header - * eos.setExifData(exif); - * // Write the original jpeg out, the header will be add into the file. - * eos.write(jpeg); - * } catch (FileNotFoundException e) { - * e.printStackTrace(); - * } catch (IOException e) { - * e.printStackTrace(); - * } finally { - * if (os != null) { - * try { - * os.close(); - * } catch (IOException e) { - * e.printStackTrace(); - * } - * } - * } - * } - * </pre> - */ -class ExifOutputStream extends FilterOutputStream { - private static final String TAG = "ExifOutputStream"; - private static final boolean DEBUG = false; - private static final int STREAMBUFFER_SIZE = 0x00010000; // 64Kb - - private static final int STATE_SOI = 0; - private static final int STATE_FRAME_HEADER = 1; - private static final int STATE_JPEG_DATA = 2; - - private static final int EXIF_HEADER = 0x45786966; - private static final short TIFF_HEADER = 0x002A; - private static final short TIFF_BIG_ENDIAN = 0x4d4d; - private static final short TIFF_LITTLE_ENDIAN = 0x4949; - private static final short TAG_SIZE = 12; - private static final short TIFF_HEADER_SIZE = 8; - private static final int MAX_EXIF_SIZE = 65535; - - private ExifData mExifData; - private int mState = STATE_SOI; - private int mByteToSkip; - private int mByteToCopy; - private byte[] mSingleByteArray = new byte[1]; - private ByteBuffer mBuffer = ByteBuffer.allocate(4); - private final ExifInterface mInterface; - - protected ExifOutputStream(OutputStream ou, ExifInterface iRef) { - super(new BufferedOutputStream(ou, STREAMBUFFER_SIZE)); - mInterface = iRef; - } - - /** - * Sets the ExifData to be written into the JPEG file. Should be called - * before writing image data. - */ - protected void setExifData(ExifData exifData) { - mExifData = exifData; - } - - /** - * Gets the Exif header to be written into the JPEF file. - */ - protected ExifData getExifData() { - return mExifData; - } - - private int requestByteToBuffer(int requestByteCount, byte[] buffer - , int offset, int length) { - int byteNeeded = requestByteCount - mBuffer.position(); - int byteToRead = length > byteNeeded ? byteNeeded : length; - mBuffer.put(buffer, offset, byteToRead); - return byteToRead; - } - - /** - * Writes the image out. The input data should be a valid JPEG format. After - * writing, it's Exif header will be replaced by the given header. - */ - @Override - public void write(byte[] buffer, int offset, int length) throws IOException { - while ((mByteToSkip > 0 || mByteToCopy > 0 || mState != STATE_JPEG_DATA) - && length > 0) { - if (mByteToSkip > 0) { - int byteToProcess = length > mByteToSkip ? mByteToSkip : length; - length -= byteToProcess; - mByteToSkip -= byteToProcess; - offset += byteToProcess; - } - if (mByteToCopy > 0) { - int byteToProcess = length > mByteToCopy ? mByteToCopy : length; - out.write(buffer, offset, byteToProcess); - length -= byteToProcess; - mByteToCopy -= byteToProcess; - offset += byteToProcess; - } - if (length == 0) { - return; - } - switch (mState) { - case STATE_SOI: - int byteRead = requestByteToBuffer(2, buffer, offset, length); - offset += byteRead; - length -= byteRead; - if (mBuffer.position() < 2) { - return; - } - mBuffer.rewind(); - if (mBuffer.getShort() != JpegHeader.SOI) { - throw new IOException("Not a valid jpeg image, cannot write exif"); - } - out.write(mBuffer.array(), 0, 2); - mState = STATE_FRAME_HEADER; - mBuffer.rewind(); - writeExifData(); - break; - case STATE_FRAME_HEADER: - // We ignore the APP1 segment and copy all other segments - // until SOF tag. - byteRead = requestByteToBuffer(4, buffer, offset, length); - offset += byteRead; - length -= byteRead; - // Check if this image data doesn't contain SOF. - if (mBuffer.position() == 2) { - short tag = mBuffer.getShort(); - if (tag == JpegHeader.EOI) { - out.write(mBuffer.array(), 0, 2); - mBuffer.rewind(); - } - } - if (mBuffer.position() < 4) { - return; - } - mBuffer.rewind(); - short marker = mBuffer.getShort(); - if (marker == JpegHeader.APP1) { - mByteToSkip = (mBuffer.getShort() & 0x0000ffff) - 2; - mState = STATE_JPEG_DATA; - } else if (!JpegHeader.isSofMarker(marker)) { - out.write(mBuffer.array(), 0, 4); - mByteToCopy = (mBuffer.getShort() & 0x0000ffff) - 2; - } else { - out.write(mBuffer.array(), 0, 4); - mState = STATE_JPEG_DATA; - } - mBuffer.rewind(); - } - } - if (length > 0) { - out.write(buffer, offset, length); - } - } - - /** - * Writes the one bytes out. The input data should be a valid JPEG format. - * After writing, it's Exif header will be replaced by the given header. - */ - @Override - public void write(int oneByte) throws IOException { - mSingleByteArray[0] = (byte) (0xff & oneByte); - write(mSingleByteArray); - } - - /** - * Equivalent to calling write(buffer, 0, buffer.length). - */ - @Override - public void write(byte[] buffer) throws IOException { - write(buffer, 0, buffer.length); - } - - private void writeExifData() throws IOException { - if (mExifData == null) { - return; - } - if (DEBUG) { - Log.v(TAG, "Writing exif data..."); - } - ArrayList<ExifTag> nullTags = stripNullValueTags(mExifData); - createRequiredIfdAndTag(); - int exifSize = calculateAllOffset(); - if (exifSize + 8 > MAX_EXIF_SIZE) { - throw new IOException("Exif header is too large (>64Kb)"); - } - OrderedDataOutputStream dataOutputStream = new OrderedDataOutputStream(out); - dataOutputStream.setByteOrder(ByteOrder.BIG_ENDIAN); - dataOutputStream.writeShort(JpegHeader.APP1); - dataOutputStream.writeShort((short) (exifSize + 8)); - dataOutputStream.writeInt(EXIF_HEADER); - dataOutputStream.writeShort((short) 0x0000); - if (mExifData.getByteOrder() == ByteOrder.BIG_ENDIAN) { - dataOutputStream.writeShort(TIFF_BIG_ENDIAN); - } else { - dataOutputStream.writeShort(TIFF_LITTLE_ENDIAN); - } - dataOutputStream.setByteOrder(mExifData.getByteOrder()); - dataOutputStream.writeShort(TIFF_HEADER); - dataOutputStream.writeInt(8); - writeAllTags(dataOutputStream); - writeThumbnail(dataOutputStream); - for (ExifTag t : nullTags) { - mExifData.addTag(t); - } - } - - private ArrayList<ExifTag> stripNullValueTags(ExifData data) { - ArrayList<ExifTag> nullTags = new ArrayList<ExifTag>(); - for(ExifTag t : data.getAllTags()) { - if (t.getValue() == null && !ExifInterface.isOffsetTag(t.getTagId())) { - data.removeTag(t.getTagId(), t.getIfd()); - nullTags.add(t); - } - } - return nullTags; - } - - private void writeThumbnail(OrderedDataOutputStream dataOutputStream) throws IOException { - if (mExifData.hasCompressedThumbnail()) { - dataOutputStream.write(mExifData.getCompressedThumbnail()); - } else if (mExifData.hasUncompressedStrip()) { - for (int i = 0; i < mExifData.getStripCount(); i++) { - dataOutputStream.write(mExifData.getStrip(i)); - } - } - } - - private void writeAllTags(OrderedDataOutputStream dataOutputStream) throws IOException { - writeIfd(mExifData.getIfdData(IfdId.TYPE_IFD_0), dataOutputStream); - writeIfd(mExifData.getIfdData(IfdId.TYPE_IFD_EXIF), dataOutputStream); - IfdData interoperabilityIfd = mExifData.getIfdData(IfdId.TYPE_IFD_INTEROPERABILITY); - if (interoperabilityIfd != null) { - writeIfd(interoperabilityIfd, dataOutputStream); - } - IfdData gpsIfd = mExifData.getIfdData(IfdId.TYPE_IFD_GPS); - if (gpsIfd != null) { - writeIfd(gpsIfd, dataOutputStream); - } - IfdData ifd1 = mExifData.getIfdData(IfdId.TYPE_IFD_1); - if (ifd1 != null) { - writeIfd(mExifData.getIfdData(IfdId.TYPE_IFD_1), dataOutputStream); - } - } - - private void writeIfd(IfdData ifd, OrderedDataOutputStream dataOutputStream) - throws IOException { - ExifTag[] tags = ifd.getAllTags(); - dataOutputStream.writeShort((short) tags.length); - for (ExifTag tag : tags) { - dataOutputStream.writeShort(tag.getTagId()); - dataOutputStream.writeShort(tag.getDataType()); - dataOutputStream.writeInt(tag.getComponentCount()); - if (DEBUG) { - Log.v(TAG, "\n" + tag.toString()); - } - if (tag.getDataSize() > 4) { - dataOutputStream.writeInt(tag.getOffset()); - } else { - ExifOutputStream.writeTagValue(tag, dataOutputStream); - for (int i = 0, n = 4 - tag.getDataSize(); i < n; i++) { - dataOutputStream.write(0); - } - } - } - dataOutputStream.writeInt(ifd.getOffsetToNextIfd()); - for (ExifTag tag : tags) { - if (tag.getDataSize() > 4) { - ExifOutputStream.writeTagValue(tag, dataOutputStream); - } - } - } - - private int calculateOffsetOfIfd(IfdData ifd, int offset) { - offset += 2 + ifd.getTagCount() * TAG_SIZE + 4; - ExifTag[] tags = ifd.getAllTags(); - for (ExifTag tag : tags) { - if (tag.getDataSize() > 4) { - tag.setOffset(offset); - offset += tag.getDataSize(); - } - } - return offset; - } - - private void createRequiredIfdAndTag() throws IOException { - // IFD0 is required for all file - IfdData ifd0 = mExifData.getIfdData(IfdId.TYPE_IFD_0); - if (ifd0 == null) { - ifd0 = new IfdData(IfdId.TYPE_IFD_0); - mExifData.addIfdData(ifd0); - } - ExifTag exifOffsetTag = mInterface.buildUninitializedTag(ExifInterface.TAG_EXIF_IFD); - if (exifOffsetTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_EXIF_IFD); - } - ifd0.setTag(exifOffsetTag); - - // Exif IFD is required for all files. - IfdData exifIfd = mExifData.getIfdData(IfdId.TYPE_IFD_EXIF); - if (exifIfd == null) { - exifIfd = new IfdData(IfdId.TYPE_IFD_EXIF); - mExifData.addIfdData(exifIfd); - } - - // GPS IFD - IfdData gpsIfd = mExifData.getIfdData(IfdId.TYPE_IFD_GPS); - if (gpsIfd != null) { - ExifTag gpsOffsetTag = mInterface.buildUninitializedTag(ExifInterface.TAG_GPS_IFD); - if (gpsOffsetTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_GPS_IFD); - } - ifd0.setTag(gpsOffsetTag); - } - - // Interoperability IFD - IfdData interIfd = mExifData.getIfdData(IfdId.TYPE_IFD_INTEROPERABILITY); - if (interIfd != null) { - ExifTag interOffsetTag = mInterface - .buildUninitializedTag(ExifInterface.TAG_INTEROPERABILITY_IFD); - if (interOffsetTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_INTEROPERABILITY_IFD); - } - exifIfd.setTag(interOffsetTag); - } - - IfdData ifd1 = mExifData.getIfdData(IfdId.TYPE_IFD_1); - - // thumbnail - if (mExifData.hasCompressedThumbnail()) { - - if (ifd1 == null) { - ifd1 = new IfdData(IfdId.TYPE_IFD_1); - mExifData.addIfdData(ifd1); - } - - ExifTag offsetTag = mInterface - .buildUninitializedTag(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT); - if (offsetTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT); - } - - ifd1.setTag(offsetTag); - ExifTag lengthTag = mInterface - .buildUninitializedTag(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH); - if (lengthTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH); - } - - lengthTag.setValue(mExifData.getCompressedThumbnail().length); - ifd1.setTag(lengthTag); - - // Get rid of tags for uncompressed if they exist. - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_OFFSETS)); - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_BYTE_COUNTS)); - } else if (mExifData.hasUncompressedStrip()) { - if (ifd1 == null) { - ifd1 = new IfdData(IfdId.TYPE_IFD_1); - mExifData.addIfdData(ifd1); - } - int stripCount = mExifData.getStripCount(); - ExifTag offsetTag = mInterface.buildUninitializedTag(ExifInterface.TAG_STRIP_OFFSETS); - if (offsetTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_STRIP_OFFSETS); - } - ExifTag lengthTag = mInterface - .buildUninitializedTag(ExifInterface.TAG_STRIP_BYTE_COUNTS); - if (lengthTag == null) { - throw new IOException("No definition for crucial exif tag: " - + ExifInterface.TAG_STRIP_BYTE_COUNTS); - } - long[] lengths = new long[stripCount]; - for (int i = 0; i < mExifData.getStripCount(); i++) { - lengths[i] = mExifData.getStrip(i).length; - } - lengthTag.setValue(lengths); - ifd1.setTag(offsetTag); - ifd1.setTag(lengthTag); - // Get rid of tags for compressed if they exist. - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT)); - ifd1.removeTag(ExifInterface - .getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH)); - } else if (ifd1 != null) { - // Get rid of offset and length tags if there is no thumbnail. - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_OFFSETS)); - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_BYTE_COUNTS)); - ifd1.removeTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT)); - ifd1.removeTag(ExifInterface - .getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH)); - } - } - - private int calculateAllOffset() { - int offset = TIFF_HEADER_SIZE; - IfdData ifd0 = mExifData.getIfdData(IfdId.TYPE_IFD_0); - offset = calculateOffsetOfIfd(ifd0, offset); - ifd0.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_EXIF_IFD)).setValue(offset); - - IfdData exifIfd = mExifData.getIfdData(IfdId.TYPE_IFD_EXIF); - offset = calculateOffsetOfIfd(exifIfd, offset); - - IfdData interIfd = mExifData.getIfdData(IfdId.TYPE_IFD_INTEROPERABILITY); - if (interIfd != null) { - exifIfd.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_INTEROPERABILITY_IFD)) - .setValue(offset); - offset = calculateOffsetOfIfd(interIfd, offset); - } - - IfdData gpsIfd = mExifData.getIfdData(IfdId.TYPE_IFD_GPS); - if (gpsIfd != null) { - ifd0.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_GPS_IFD)).setValue(offset); - offset = calculateOffsetOfIfd(gpsIfd, offset); - } - - IfdData ifd1 = mExifData.getIfdData(IfdId.TYPE_IFD_1); - if (ifd1 != null) { - ifd0.setOffsetToNextIfd(offset); - offset = calculateOffsetOfIfd(ifd1, offset); - } - - // thumbnail - if (mExifData.hasCompressedThumbnail()) { - ifd1.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT)) - .setValue(offset); - offset += mExifData.getCompressedThumbnail().length; - } else if (mExifData.hasUncompressedStrip()) { - int stripCount = mExifData.getStripCount(); - long[] offsets = new long[stripCount]; - for (int i = 0; i < mExifData.getStripCount(); i++) { - offsets[i] = offset; - offset += mExifData.getStrip(i).length; - } - ifd1.getTag(ExifInterface.getTrueTagKey(ExifInterface.TAG_STRIP_OFFSETS)).setValue( - offsets); - } - return offset; - } - - static void writeTagValue(ExifTag tag, OrderedDataOutputStream dataOutputStream) - throws IOException { - switch (tag.getDataType()) { - case ExifTag.TYPE_ASCII: - byte buf[] = tag.getStringByte(); - if (buf.length == tag.getComponentCount()) { - buf[buf.length - 1] = 0; - dataOutputStream.write(buf); - } else { - dataOutputStream.write(buf); - dataOutputStream.write(0); - } - break; - case ExifTag.TYPE_LONG: - case ExifTag.TYPE_UNSIGNED_LONG: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - dataOutputStream.writeInt((int) tag.getValueAt(i)); - } - break; - case ExifTag.TYPE_RATIONAL: - case ExifTag.TYPE_UNSIGNED_RATIONAL: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - dataOutputStream.writeRational(tag.getRational(i)); - } - break; - case ExifTag.TYPE_UNDEFINED: - case ExifTag.TYPE_UNSIGNED_BYTE: - buf = new byte[tag.getComponentCount()]; - tag.getBytes(buf); - dataOutputStream.write(buf); - break; - case ExifTag.TYPE_UNSIGNED_SHORT: - for (int i = 0, n = tag.getComponentCount(); i < n; i++) { - dataOutputStream.writeShort((short) tag.getValueAt(i)); - } - break; - } - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifParser.java b/gallerycommon/src/com/android/gallery3d/exif/ExifParser.java deleted file mode 100644 index 5467d423d..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifParser.java +++ /dev/null @@ -1,916 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import android.util.Log; - -import java.io.IOException; -import java.io.InputStream; -import java.nio.ByteOrder; -import java.nio.charset.Charset; -import java.util.Map.Entry; -import java.util.TreeMap; - -/** - * This class provides a low-level EXIF parsing API. Given a JPEG format - * InputStream, the caller can request which IFD's to read via - * {@link #parse(InputStream, int)} with given options. - * <p> - * Below is an example of getting EXIF data from IFD 0 and EXIF IFD using the - * parser. - * - * <pre> - * void parse() { - * ExifParser parser = ExifParser.parse(mImageInputStream, - * ExifParser.OPTION_IFD_0 | ExifParser.OPTIONS_IFD_EXIF); - * int event = parser.next(); - * while (event != ExifParser.EVENT_END) { - * switch (event) { - * case ExifParser.EVENT_START_OF_IFD: - * break; - * case ExifParser.EVENT_NEW_TAG: - * ExifTag tag = parser.getTag(); - * if (!tag.hasValue()) { - * parser.registerForTagValue(tag); - * } else { - * processTag(tag); - * } - * break; - * case ExifParser.EVENT_VALUE_OF_REGISTERED_TAG: - * tag = parser.getTag(); - * if (tag.getDataType() != ExifTag.TYPE_UNDEFINED) { - * processTag(tag); - * } - * break; - * } - * event = parser.next(); - * } - * } - * - * void processTag(ExifTag tag) { - * // process the tag as you like. - * } - * </pre> - */ -class ExifParser { - private static final boolean LOGV = false; - private static final String TAG = "ExifParser"; - /** - * When the parser reaches a new IFD area. Call {@link #getCurrentIfd()} to - * know which IFD we are in. - */ - public static final int EVENT_START_OF_IFD = 0; - /** - * When the parser reaches a new tag. Call {@link #getTag()}to get the - * corresponding tag. - */ - public static final int EVENT_NEW_TAG = 1; - /** - * When the parser reaches the value area of tag that is registered by - * {@link #registerForTagValue(ExifTag)} previously. Call {@link #getTag()} - * to get the corresponding tag. - */ - public static final int EVENT_VALUE_OF_REGISTERED_TAG = 2; - - /** - * When the parser reaches the compressed image area. - */ - public static final int EVENT_COMPRESSED_IMAGE = 3; - /** - * When the parser reaches the uncompressed image strip. Call - * {@link #getStripIndex()} to get the index of the strip. - * - * @see #getStripIndex() - * @see #getStripCount() - */ - public static final int EVENT_UNCOMPRESSED_STRIP = 4; - /** - * When there is nothing more to parse. - */ - public static final int EVENT_END = 5; - - /** - * Option bit to request to parse IFD0. - */ - public static final int OPTION_IFD_0 = 1 << 0; - /** - * Option bit to request to parse IFD1. - */ - public static final int OPTION_IFD_1 = 1 << 1; - /** - * Option bit to request to parse Exif-IFD. - */ - public static final int OPTION_IFD_EXIF = 1 << 2; - /** - * Option bit to request to parse GPS-IFD. - */ - public static final int OPTION_IFD_GPS = 1 << 3; - /** - * Option bit to request to parse Interoperability-IFD. - */ - public static final int OPTION_IFD_INTEROPERABILITY = 1 << 4; - /** - * Option bit to request to parse thumbnail. - */ - public static final int OPTION_THUMBNAIL = 1 << 5; - - protected static final int EXIF_HEADER = 0x45786966; // EXIF header "Exif" - protected static final short EXIF_HEADER_TAIL = (short) 0x0000; // EXIF header in APP1 - - // TIFF header - protected static final short LITTLE_ENDIAN_TAG = (short) 0x4949; // "II" - protected static final short BIG_ENDIAN_TAG = (short) 0x4d4d; // "MM" - protected static final short TIFF_HEADER_TAIL = 0x002A; - - protected static final int TAG_SIZE = 12; - protected static final int OFFSET_SIZE = 2; - - private static final Charset US_ASCII = Charset.forName("US-ASCII"); - - protected static final int DEFAULT_IFD0_OFFSET = 8; - - private final CountedDataInputStream mTiffStream; - private final int mOptions; - private int mIfdStartOffset = 0; - private int mNumOfTagInIfd = 0; - private int mIfdType; - private ExifTag mTag; - private ImageEvent mImageEvent; - private int mStripCount; - private ExifTag mStripSizeTag; - private ExifTag mJpegSizeTag; - private boolean mNeedToParseOffsetsInCurrentIfd; - private boolean mContainExifData = false; - private int mApp1End; - private int mOffsetToApp1EndFromSOF = 0; - private byte[] mDataAboveIfd0; - private int mIfd0Position; - private int mTiffStartPosition; - private final ExifInterface mInterface; - - private static final short TAG_EXIF_IFD = ExifInterface - .getTrueTagKey(ExifInterface.TAG_EXIF_IFD); - private static final short TAG_GPS_IFD = ExifInterface.getTrueTagKey(ExifInterface.TAG_GPS_IFD); - private static final short TAG_INTEROPERABILITY_IFD = ExifInterface - .getTrueTagKey(ExifInterface.TAG_INTEROPERABILITY_IFD); - private static final short TAG_JPEG_INTERCHANGE_FORMAT = ExifInterface - .getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT); - private static final short TAG_JPEG_INTERCHANGE_FORMAT_LENGTH = ExifInterface - .getTrueTagKey(ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH); - private static final short TAG_STRIP_OFFSETS = ExifInterface - .getTrueTagKey(ExifInterface.TAG_STRIP_OFFSETS); - private static final short TAG_STRIP_BYTE_COUNTS = ExifInterface - .getTrueTagKey(ExifInterface.TAG_STRIP_BYTE_COUNTS); - - private final TreeMap<Integer, Object> mCorrespondingEvent = new TreeMap<Integer, Object>(); - - private boolean isIfdRequested(int ifdType) { - switch (ifdType) { - case IfdId.TYPE_IFD_0: - return (mOptions & OPTION_IFD_0) != 0; - case IfdId.TYPE_IFD_1: - return (mOptions & OPTION_IFD_1) != 0; - case IfdId.TYPE_IFD_EXIF: - return (mOptions & OPTION_IFD_EXIF) != 0; - case IfdId.TYPE_IFD_GPS: - return (mOptions & OPTION_IFD_GPS) != 0; - case IfdId.TYPE_IFD_INTEROPERABILITY: - return (mOptions & OPTION_IFD_INTEROPERABILITY) != 0; - } - return false; - } - - private boolean isThumbnailRequested() { - return (mOptions & OPTION_THUMBNAIL) != 0; - } - - private ExifParser(InputStream inputStream, int options, ExifInterface iRef) - throws IOException, ExifInvalidFormatException { - if (inputStream == null) { - throw new IOException("Null argument inputStream to ExifParser"); - } - if (LOGV) { - Log.v(TAG, "Reading exif..."); - } - mInterface = iRef; - mContainExifData = seekTiffData(inputStream); - mTiffStream = new CountedDataInputStream(inputStream); - mOptions = options; - if (!mContainExifData) { - return; - } - - parseTiffHeader(); - long offset = mTiffStream.readUnsignedInt(); - if (offset > Integer.MAX_VALUE) { - throw new ExifInvalidFormatException("Invalid offset " + offset); - } - mIfd0Position = (int) offset; - mIfdType = IfdId.TYPE_IFD_0; - if (isIfdRequested(IfdId.TYPE_IFD_0) || needToParseOffsetsInCurrentIfd()) { - registerIfd(IfdId.TYPE_IFD_0, offset); - if (offset != DEFAULT_IFD0_OFFSET) { - mDataAboveIfd0 = new byte[(int) offset - DEFAULT_IFD0_OFFSET]; - read(mDataAboveIfd0); - } - } - } - - /** - * Parses the the given InputStream with the given options - * - * @exception IOException - * @exception ExifInvalidFormatException - */ - protected static ExifParser parse(InputStream inputStream, int options, ExifInterface iRef) - throws IOException, ExifInvalidFormatException { - return new ExifParser(inputStream, options, iRef); - } - - /** - * Parses the the given InputStream with default options; that is, every IFD - * and thumbnaill will be parsed. - * - * @exception IOException - * @exception ExifInvalidFormatException - * @see #parse(InputStream, int) - */ - protected static ExifParser parse(InputStream inputStream, ExifInterface iRef) - throws IOException, ExifInvalidFormatException { - return new ExifParser(inputStream, OPTION_IFD_0 | OPTION_IFD_1 - | OPTION_IFD_EXIF | OPTION_IFD_GPS | OPTION_IFD_INTEROPERABILITY - | OPTION_THUMBNAIL, iRef); - } - - /** - * Moves the parser forward and returns the next parsing event - * - * @exception IOException - * @exception ExifInvalidFormatException - * @see #EVENT_START_OF_IFD - * @see #EVENT_NEW_TAG - * @see #EVENT_VALUE_OF_REGISTERED_TAG - * @see #EVENT_COMPRESSED_IMAGE - * @see #EVENT_UNCOMPRESSED_STRIP - * @see #EVENT_END - */ - protected int next() throws IOException, ExifInvalidFormatException { - if (!mContainExifData) { - return EVENT_END; - } - int offset = mTiffStream.getReadByteCount(); - int endOfTags = mIfdStartOffset + OFFSET_SIZE + TAG_SIZE * mNumOfTagInIfd; - if (offset < endOfTags) { - mTag = readTag(); - if (mTag == null) { - return next(); - } - if (mNeedToParseOffsetsInCurrentIfd) { - checkOffsetOrImageTag(mTag); - } - return EVENT_NEW_TAG; - } else if (offset == endOfTags) { - // There is a link to ifd1 at the end of ifd0 - if (mIfdType == IfdId.TYPE_IFD_0) { - long ifdOffset = readUnsignedLong(); - if (isIfdRequested(IfdId.TYPE_IFD_1) || isThumbnailRequested()) { - if (ifdOffset != 0) { - registerIfd(IfdId.TYPE_IFD_1, ifdOffset); - } - } - } else { - int offsetSize = 4; - // Some camera models use invalid length of the offset - if (mCorrespondingEvent.size() > 0) { - offsetSize = mCorrespondingEvent.firstEntry().getKey() - - mTiffStream.getReadByteCount(); - } - if (offsetSize < 4) { - Log.w(TAG, "Invalid size of link to next IFD: " + offsetSize); - } else { - long ifdOffset = readUnsignedLong(); - if (ifdOffset != 0) { - Log.w(TAG, "Invalid link to next IFD: " + ifdOffset); - } - } - } - } - while (mCorrespondingEvent.size() != 0) { - Entry<Integer, Object> entry = mCorrespondingEvent.pollFirstEntry(); - Object event = entry.getValue(); - try { - skipTo(entry.getKey()); - } catch (IOException e) { - Log.w(TAG, "Failed to skip to data at: " + entry.getKey() + - " for " + event.getClass().getName() + ", the file may be broken."); - continue; - } - if (event instanceof IfdEvent) { - mIfdType = ((IfdEvent) event).ifd; - mNumOfTagInIfd = mTiffStream.readUnsignedShort(); - mIfdStartOffset = entry.getKey(); - - if (mNumOfTagInIfd * TAG_SIZE + mIfdStartOffset + OFFSET_SIZE > mApp1End) { - Log.w(TAG, "Invalid size of IFD " + mIfdType); - return EVENT_END; - } - - mNeedToParseOffsetsInCurrentIfd = needToParseOffsetsInCurrentIfd(); - if (((IfdEvent) event).isRequested) { - return EVENT_START_OF_IFD; - } else { - skipRemainingTagsInCurrentIfd(); - } - } else if (event instanceof ImageEvent) { - mImageEvent = (ImageEvent) event; - return mImageEvent.type; - } else { - ExifTagEvent tagEvent = (ExifTagEvent) event; - mTag = tagEvent.tag; - if (mTag.getDataType() != ExifTag.TYPE_UNDEFINED) { - readFullTagValue(mTag); - checkOffsetOrImageTag(mTag); - } - if (tagEvent.isRequested) { - return EVENT_VALUE_OF_REGISTERED_TAG; - } - } - } - return EVENT_END; - } - - /** - * Skips the tags area of current IFD, if the parser is not in the tag area, - * nothing will happen. - * - * @throws IOException - * @throws ExifInvalidFormatException - */ - protected void skipRemainingTagsInCurrentIfd() throws IOException, ExifInvalidFormatException { - int endOfTags = mIfdStartOffset + OFFSET_SIZE + TAG_SIZE * mNumOfTagInIfd; - int offset = mTiffStream.getReadByteCount(); - if (offset > endOfTags) { - return; - } - if (mNeedToParseOffsetsInCurrentIfd) { - while (offset < endOfTags) { - mTag = readTag(); - offset += TAG_SIZE; - if (mTag == null) { - continue; - } - checkOffsetOrImageTag(mTag); - } - } else { - skipTo(endOfTags); - } - long ifdOffset = readUnsignedLong(); - // For ifd0, there is a link to ifd1 in the end of all tags - if (mIfdType == IfdId.TYPE_IFD_0 - && (isIfdRequested(IfdId.TYPE_IFD_1) || isThumbnailRequested())) { - if (ifdOffset > 0) { - registerIfd(IfdId.TYPE_IFD_1, ifdOffset); - } - } - } - - private boolean needToParseOffsetsInCurrentIfd() { - switch (mIfdType) { - case IfdId.TYPE_IFD_0: - return isIfdRequested(IfdId.TYPE_IFD_EXIF) || isIfdRequested(IfdId.TYPE_IFD_GPS) - || isIfdRequested(IfdId.TYPE_IFD_INTEROPERABILITY) - || isIfdRequested(IfdId.TYPE_IFD_1); - case IfdId.TYPE_IFD_1: - return isThumbnailRequested(); - case IfdId.TYPE_IFD_EXIF: - // The offset to interoperability IFD is located in Exif IFD - return isIfdRequested(IfdId.TYPE_IFD_INTEROPERABILITY); - default: - return false; - } - } - - /** - * If {@link #next()} return {@link #EVENT_NEW_TAG} or - * {@link #EVENT_VALUE_OF_REGISTERED_TAG}, call this function to get the - * corresponding tag. - * <p> - * For {@link #EVENT_NEW_TAG}, the tag may not contain the value if the size - * of the value is greater than 4 bytes. One should call - * {@link ExifTag#hasValue()} to check if the tag contains value. If there - * is no value,call {@link #registerForTagValue(ExifTag)} to have the parser - * emit {@link #EVENT_VALUE_OF_REGISTERED_TAG} when it reaches the area - * pointed by the offset. - * <p> - * When {@link #EVENT_VALUE_OF_REGISTERED_TAG} is emitted, the value of the - * tag will have already been read except for tags of undefined type. For - * tags of undefined type, call one of the read methods to get the value. - * - * @see #registerForTagValue(ExifTag) - * @see #read(byte[]) - * @see #read(byte[], int, int) - * @see #readLong() - * @see #readRational() - * @see #readString(int) - * @see #readString(int, Charset) - */ - protected ExifTag getTag() { - return mTag; - } - - /** - * Gets number of tags in the current IFD area. - */ - protected int getTagCountInCurrentIfd() { - return mNumOfTagInIfd; - } - - /** - * Gets the ID of current IFD. - * - * @see IfdId#TYPE_IFD_0 - * @see IfdId#TYPE_IFD_1 - * @see IfdId#TYPE_IFD_GPS - * @see IfdId#TYPE_IFD_INTEROPERABILITY - * @see IfdId#TYPE_IFD_EXIF - */ - protected int getCurrentIfd() { - return mIfdType; - } - - /** - * When receiving {@link #EVENT_UNCOMPRESSED_STRIP}, call this function to - * get the index of this strip. - * - * @see #getStripCount() - */ - protected int getStripIndex() { - return mImageEvent.stripIndex; - } - - /** - * When receiving {@link #EVENT_UNCOMPRESSED_STRIP}, call this function to - * get the number of strip data. - * - * @see #getStripIndex() - */ - protected int getStripCount() { - return mStripCount; - } - - /** - * When receiving {@link #EVENT_UNCOMPRESSED_STRIP}, call this function to - * get the strip size. - */ - protected int getStripSize() { - if (mStripSizeTag == null) - return 0; - return (int) mStripSizeTag.getValueAt(0); - } - - /** - * When receiving {@link #EVENT_COMPRESSED_IMAGE}, call this function to get - * the image data size. - */ - protected int getCompressedImageSize() { - if (mJpegSizeTag == null) { - return 0; - } - return (int) mJpegSizeTag.getValueAt(0); - } - - private void skipTo(int offset) throws IOException { - mTiffStream.skipTo(offset); - while (!mCorrespondingEvent.isEmpty() && mCorrespondingEvent.firstKey() < offset) { - mCorrespondingEvent.pollFirstEntry(); - } - } - - /** - * When getting {@link #EVENT_NEW_TAG} in the tag area of IFD, the tag may - * not contain the value if the size of the value is greater than 4 bytes. - * When the value is not available here, call this method so that the parser - * will emit {@link #EVENT_VALUE_OF_REGISTERED_TAG} when it reaches the area - * where the value is located. - * - * @see #EVENT_VALUE_OF_REGISTERED_TAG - */ - protected void registerForTagValue(ExifTag tag) { - if (tag.getOffset() >= mTiffStream.getReadByteCount()) { - mCorrespondingEvent.put(tag.getOffset(), new ExifTagEvent(tag, true)); - } - } - - private void registerIfd(int ifdType, long offset) { - // Cast unsigned int to int since the offset is always smaller - // than the size of APP1 (65536) - mCorrespondingEvent.put((int) offset, new IfdEvent(ifdType, isIfdRequested(ifdType))); - } - - private void registerCompressedImage(long offset) { - mCorrespondingEvent.put((int) offset, new ImageEvent(EVENT_COMPRESSED_IMAGE)); - } - - private void registerUncompressedStrip(int stripIndex, long offset) { - mCorrespondingEvent.put((int) offset, new ImageEvent(EVENT_UNCOMPRESSED_STRIP - , stripIndex)); - } - - private ExifTag readTag() throws IOException, ExifInvalidFormatException { - short tagId = mTiffStream.readShort(); - short dataFormat = mTiffStream.readShort(); - long numOfComp = mTiffStream.readUnsignedInt(); - if (numOfComp > Integer.MAX_VALUE) { - throw new ExifInvalidFormatException( - "Number of component is larger then Integer.MAX_VALUE"); - } - // Some invalid image file contains invalid data type. Ignore those tags - if (!ExifTag.isValidType(dataFormat)) { - Log.w(TAG, String.format("Tag %04x: Invalid data type %d", tagId, dataFormat)); - mTiffStream.skip(4); - return null; - } - // TODO: handle numOfComp overflow - ExifTag tag = new ExifTag(tagId, dataFormat, (int) numOfComp, mIfdType, - ((int) numOfComp) != ExifTag.SIZE_UNDEFINED); - int dataSize = tag.getDataSize(); - if (dataSize > 4) { - long offset = mTiffStream.readUnsignedInt(); - if (offset > Integer.MAX_VALUE) { - throw new ExifInvalidFormatException( - "offset is larger then Integer.MAX_VALUE"); - } - // Some invalid images put some undefined data before IFD0. - // Read the data here. - if ((offset < mIfd0Position) && (dataFormat == ExifTag.TYPE_UNDEFINED)) { - byte[] buf = new byte[(int) numOfComp]; - System.arraycopy(mDataAboveIfd0, (int) offset - DEFAULT_IFD0_OFFSET, - buf, 0, (int) numOfComp); - tag.setValue(buf); - } else { - tag.setOffset((int) offset); - } - } else { - boolean defCount = tag.hasDefinedCount(); - // Set defined count to 0 so we can add \0 to non-terminated strings - tag.setHasDefinedCount(false); - // Read value - readFullTagValue(tag); - tag.setHasDefinedCount(defCount); - mTiffStream.skip(4 - dataSize); - // Set the offset to the position of value. - tag.setOffset(mTiffStream.getReadByteCount() - 4); - } - return tag; - } - - /** - * Check the tag, if the tag is one of the offset tag that points to the IFD - * or image the caller is interested in, register the IFD or image. - */ - private void checkOffsetOrImageTag(ExifTag tag) { - // Some invalid formattd image contains tag with 0 size. - if (tag.getComponentCount() == 0) { - return; - } - short tid = tag.getTagId(); - int ifd = tag.getIfd(); - if (tid == TAG_EXIF_IFD && checkAllowed(ifd, ExifInterface.TAG_EXIF_IFD)) { - if (isIfdRequested(IfdId.TYPE_IFD_EXIF) - || isIfdRequested(IfdId.TYPE_IFD_INTEROPERABILITY)) { - registerIfd(IfdId.TYPE_IFD_EXIF, tag.getValueAt(0)); - } - } else if (tid == TAG_GPS_IFD && checkAllowed(ifd, ExifInterface.TAG_GPS_IFD)) { - if (isIfdRequested(IfdId.TYPE_IFD_GPS)) { - registerIfd(IfdId.TYPE_IFD_GPS, tag.getValueAt(0)); - } - } else if (tid == TAG_INTEROPERABILITY_IFD - && checkAllowed(ifd, ExifInterface.TAG_INTEROPERABILITY_IFD)) { - if (isIfdRequested(IfdId.TYPE_IFD_INTEROPERABILITY)) { - registerIfd(IfdId.TYPE_IFD_INTEROPERABILITY, tag.getValueAt(0)); - } - } else if (tid == TAG_JPEG_INTERCHANGE_FORMAT - && checkAllowed(ifd, ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT)) { - if (isThumbnailRequested()) { - registerCompressedImage(tag.getValueAt(0)); - } - } else if (tid == TAG_JPEG_INTERCHANGE_FORMAT_LENGTH - && checkAllowed(ifd, ExifInterface.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH)) { - if (isThumbnailRequested()) { - mJpegSizeTag = tag; - } - } else if (tid == TAG_STRIP_OFFSETS && checkAllowed(ifd, ExifInterface.TAG_STRIP_OFFSETS)) { - if (isThumbnailRequested()) { - if (tag.hasValue()) { - for (int i = 0; i < tag.getComponentCount(); i++) { - if (tag.getDataType() == ExifTag.TYPE_UNSIGNED_SHORT) { - registerUncompressedStrip(i, tag.getValueAt(i)); - } else { - registerUncompressedStrip(i, tag.getValueAt(i)); - } - } - } else { - mCorrespondingEvent.put(tag.getOffset(), new ExifTagEvent(tag, false)); - } - } - } else if (tid == TAG_STRIP_BYTE_COUNTS - && checkAllowed(ifd, ExifInterface.TAG_STRIP_BYTE_COUNTS) - &&isThumbnailRequested() && tag.hasValue()) { - mStripSizeTag = tag; - } - } - - private boolean checkAllowed(int ifd, int tagId) { - int info = mInterface.getTagInfo().get(tagId); - if (info == ExifInterface.DEFINITION_NULL) { - return false; - } - return ExifInterface.isIfdAllowed(info, ifd); - } - - protected void readFullTagValue(ExifTag tag) throws IOException { - // Some invalid images contains tags with wrong size, check it here - short type = tag.getDataType(); - if (type == ExifTag.TYPE_ASCII || type == ExifTag.TYPE_UNDEFINED || - type == ExifTag.TYPE_UNSIGNED_BYTE) { - int size = tag.getComponentCount(); - if (mCorrespondingEvent.size() > 0) { - if (mCorrespondingEvent.firstEntry().getKey() < mTiffStream.getReadByteCount() - + size) { - Object event = mCorrespondingEvent.firstEntry().getValue(); - if (event instanceof ImageEvent) { - // Tag value overlaps thumbnail, ignore thumbnail. - Log.w(TAG, "Thumbnail overlaps value for tag: \n" + tag.toString()); - Entry<Integer, Object> entry = mCorrespondingEvent.pollFirstEntry(); - Log.w(TAG, "Invalid thumbnail offset: " + entry.getKey()); - } else { - // Tag value overlaps another tag, shorten count - if (event instanceof IfdEvent) { - Log.w(TAG, "Ifd " + ((IfdEvent) event).ifd - + " overlaps value for tag: \n" + tag.toString()); - } else if (event instanceof ExifTagEvent) { - Log.w(TAG, "Tag value for tag: \n" - + ((ExifTagEvent) event).tag.toString() - + " overlaps value for tag: \n" + tag.toString()); - } - size = mCorrespondingEvent.firstEntry().getKey() - - mTiffStream.getReadByteCount(); - Log.w(TAG, "Invalid size of tag: \n" + tag.toString() - + " setting count to: " + size); - tag.forceSetComponentCount(size); - } - } - } - } - switch (tag.getDataType()) { - case ExifTag.TYPE_UNSIGNED_BYTE: - case ExifTag.TYPE_UNDEFINED: { - byte buf[] = new byte[tag.getComponentCount()]; - read(buf); - tag.setValue(buf); - } - break; - case ExifTag.TYPE_ASCII: - tag.setValue(readString(tag.getComponentCount())); - break; - case ExifTag.TYPE_UNSIGNED_LONG: { - long value[] = new long[tag.getComponentCount()]; - for (int i = 0, n = value.length; i < n; i++) { - value[i] = readUnsignedLong(); - } - tag.setValue(value); - } - break; - case ExifTag.TYPE_UNSIGNED_RATIONAL: { - Rational value[] = new Rational[tag.getComponentCount()]; - for (int i = 0, n = value.length; i < n; i++) { - value[i] = readUnsignedRational(); - } - tag.setValue(value); - } - break; - case ExifTag.TYPE_UNSIGNED_SHORT: { - int value[] = new int[tag.getComponentCount()]; - for (int i = 0, n = value.length; i < n; i++) { - value[i] = readUnsignedShort(); - } - tag.setValue(value); - } - break; - case ExifTag.TYPE_LONG: { - int value[] = new int[tag.getComponentCount()]; - for (int i = 0, n = value.length; i < n; i++) { - value[i] = readLong(); - } - tag.setValue(value); - } - break; - case ExifTag.TYPE_RATIONAL: { - Rational value[] = new Rational[tag.getComponentCount()]; - for (int i = 0, n = value.length; i < n; i++) { - value[i] = readRational(); - } - tag.setValue(value); - } - break; - } - if (LOGV) { - Log.v(TAG, "\n" + tag.toString()); - } - } - - private void parseTiffHeader() throws IOException, - ExifInvalidFormatException { - short byteOrder = mTiffStream.readShort(); - if (LITTLE_ENDIAN_TAG == byteOrder) { - mTiffStream.setByteOrder(ByteOrder.LITTLE_ENDIAN); - } else if (BIG_ENDIAN_TAG == byteOrder) { - mTiffStream.setByteOrder(ByteOrder.BIG_ENDIAN); - } else { - throw new ExifInvalidFormatException("Invalid TIFF header"); - } - - if (mTiffStream.readShort() != TIFF_HEADER_TAIL) { - throw new ExifInvalidFormatException("Invalid TIFF header"); - } - } - - private boolean seekTiffData(InputStream inputStream) throws IOException, - ExifInvalidFormatException { - CountedDataInputStream dataStream = new CountedDataInputStream(inputStream); - if (dataStream.readShort() != JpegHeader.SOI) { - throw new ExifInvalidFormatException("Invalid JPEG format"); - } - - short marker = dataStream.readShort(); - while (marker != JpegHeader.EOI - && !JpegHeader.isSofMarker(marker)) { - int length = dataStream.readUnsignedShort(); - // Some invalid formatted image contains multiple APP1, - // try to find the one with Exif data. - if (marker == JpegHeader.APP1) { - int header = 0; - short headerTail = 0; - if (length >= 8) { - header = dataStream.readInt(); - headerTail = dataStream.readShort(); - length -= 6; - if (header == EXIF_HEADER && headerTail == EXIF_HEADER_TAIL) { - mTiffStartPosition = dataStream.getReadByteCount(); - mApp1End = length; - mOffsetToApp1EndFromSOF = mTiffStartPosition + mApp1End; - return true; - } - } - } - if (length < 2 || (length - 2) != dataStream.skip(length - 2)) { - Log.w(TAG, "Invalid JPEG format."); - return false; - } - marker = dataStream.readShort(); - } - return false; - } - - protected int getOffsetToExifEndFromSOF() { - return mOffsetToApp1EndFromSOF; - } - - protected int getTiffStartPosition() { - return mTiffStartPosition; - } - - /** - * Reads bytes from the InputStream. - */ - protected int read(byte[] buffer, int offset, int length) throws IOException { - return mTiffStream.read(buffer, offset, length); - } - - /** - * Equivalent to read(buffer, 0, buffer.length). - */ - protected int read(byte[] buffer) throws IOException { - return mTiffStream.read(buffer); - } - - /** - * Reads a String from the InputStream with US-ASCII charset. The parser - * will read n bytes and convert it to ascii string. This is used for - * reading values of type {@link ExifTag#TYPE_ASCII}. - */ - protected String readString(int n) throws IOException { - return readString(n, US_ASCII); - } - - /** - * Reads a String from the InputStream with the given charset. The parser - * will read n bytes and convert it to string. This is used for reading - * values of type {@link ExifTag#TYPE_ASCII}. - */ - protected String readString(int n, Charset charset) throws IOException { - if (n > 0) { - return mTiffStream.readString(n, charset); - } else { - return ""; - } - } - - /** - * Reads value of type {@link ExifTag#TYPE_UNSIGNED_SHORT} from the - * InputStream. - */ - protected int readUnsignedShort() throws IOException { - return mTiffStream.readShort() & 0xffff; - } - - /** - * Reads value of type {@link ExifTag#TYPE_UNSIGNED_LONG} from the - * InputStream. - */ - protected long readUnsignedLong() throws IOException { - return readLong() & 0xffffffffL; - } - - /** - * Reads value of type {@link ExifTag#TYPE_UNSIGNED_RATIONAL} from the - * InputStream. - */ - protected Rational readUnsignedRational() throws IOException { - long nomi = readUnsignedLong(); - long denomi = readUnsignedLong(); - return new Rational(nomi, denomi); - } - - /** - * Reads value of type {@link ExifTag#TYPE_LONG} from the InputStream. - */ - protected int readLong() throws IOException { - return mTiffStream.readInt(); - } - - /** - * Reads value of type {@link ExifTag#TYPE_RATIONAL} from the InputStream. - */ - protected Rational readRational() throws IOException { - int nomi = readLong(); - int denomi = readLong(); - return new Rational(nomi, denomi); - } - - private static class ImageEvent { - int stripIndex; - int type; - - ImageEvent(int type) { - this.stripIndex = 0; - this.type = type; - } - - ImageEvent(int type, int stripIndex) { - this.type = type; - this.stripIndex = stripIndex; - } - } - - private static class IfdEvent { - int ifd; - boolean isRequested; - - IfdEvent(int ifd, boolean isInterestedIfd) { - this.ifd = ifd; - this.isRequested = isInterestedIfd; - } - } - - private static class ExifTagEvent { - ExifTag tag; - boolean isRequested; - - ExifTagEvent(ExifTag tag, boolean isRequireByUser) { - this.tag = tag; - this.isRequested = isRequireByUser; - } - } - - /** - * Gets the byte order of the current InputStream. - */ - protected ByteOrder getByteOrder() { - return mTiffStream.getByteOrder(); - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifReader.java b/gallerycommon/src/com/android/gallery3d/exif/ExifReader.java deleted file mode 100644 index 68e972fb7..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifReader.java +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import android.util.Log; - -import java.io.IOException; -import java.io.InputStream; - -/** - * This class reads the EXIF header of a JPEG file and stores it in - * {@link ExifData}. - */ -class ExifReader { - private static final String TAG = "ExifReader"; - - private final ExifInterface mInterface; - - ExifReader(ExifInterface iRef) { - mInterface = iRef; - } - - /** - * Parses the inputStream and and returns the EXIF data in an - * {@link ExifData}. - * - * @throws ExifInvalidFormatException - * @throws IOException - */ - protected ExifData read(InputStream inputStream) throws ExifInvalidFormatException, - IOException { - ExifParser parser = ExifParser.parse(inputStream, mInterface); - ExifData exifData = new ExifData(parser.getByteOrder()); - ExifTag tag = null; - - int event = parser.next(); - while (event != ExifParser.EVENT_END) { - switch (event) { - case ExifParser.EVENT_START_OF_IFD: - exifData.addIfdData(new IfdData(parser.getCurrentIfd())); - break; - case ExifParser.EVENT_NEW_TAG: - tag = parser.getTag(); - if (!tag.hasValue()) { - parser.registerForTagValue(tag); - } else { - exifData.getIfdData(tag.getIfd()).setTag(tag); - } - break; - case ExifParser.EVENT_VALUE_OF_REGISTERED_TAG: - tag = parser.getTag(); - if (tag.getDataType() == ExifTag.TYPE_UNDEFINED) { - parser.readFullTagValue(tag); - } - exifData.getIfdData(tag.getIfd()).setTag(tag); - break; - case ExifParser.EVENT_COMPRESSED_IMAGE: - byte buf[] = new byte[parser.getCompressedImageSize()]; - if (buf.length == parser.read(buf)) { - exifData.setCompressedThumbnail(buf); - } else { - Log.w(TAG, "Failed to read the compressed thumbnail"); - } - break; - case ExifParser.EVENT_UNCOMPRESSED_STRIP: - buf = new byte[parser.getStripSize()]; - if (buf.length == parser.read(buf)) { - exifData.setStripBytes(parser.getStripIndex(), buf); - } else { - Log.w(TAG, "Failed to read the strip bytes"); - } - break; - } - event = parser.next(); - } - return exifData; - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/ExifTag.java b/gallerycommon/src/com/android/gallery3d/exif/ExifTag.java deleted file mode 100644 index b8b387201..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/ExifTag.java +++ /dev/null @@ -1,1008 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.nio.charset.Charset; -import java.text.SimpleDateFormat; -import java.util.Arrays; -import java.util.Date; - -/** - * This class stores information of an EXIF tag. For more information about - * defined EXIF tags, please read the Jeita EXIF 2.2 standard. Tags should be - * instantiated using {@link ExifInterface#buildTag}. - * - * @see ExifInterface - */ -public class ExifTag { - /** - * The BYTE type in the EXIF standard. An 8-bit unsigned integer. - */ - public static final short TYPE_UNSIGNED_BYTE = 1; - /** - * The ASCII type in the EXIF standard. An 8-bit byte containing one 7-bit - * ASCII code. The final byte is terminated with NULL. - */ - public static final short TYPE_ASCII = 2; - /** - * The SHORT type in the EXIF standard. A 16-bit (2-byte) unsigned integer - */ - public static final short TYPE_UNSIGNED_SHORT = 3; - /** - * The LONG type in the EXIF standard. A 32-bit (4-byte) unsigned integer - */ - public static final short TYPE_UNSIGNED_LONG = 4; - /** - * The RATIONAL type of EXIF standard. It consists of two LONGs. The first - * one is the numerator and the second one expresses the denominator. - */ - public static final short TYPE_UNSIGNED_RATIONAL = 5; - /** - * The UNDEFINED type in the EXIF standard. An 8-bit byte that can take any - * value depending on the field definition. - */ - public static final short TYPE_UNDEFINED = 7; - /** - * The SLONG type in the EXIF standard. A 32-bit (4-byte) signed integer - * (2's complement notation). - */ - public static final short TYPE_LONG = 9; - /** - * The SRATIONAL type of EXIF standard. It consists of two SLONGs. The first - * one is the numerator and the second one is the denominator. - */ - public static final short TYPE_RATIONAL = 10; - - private static Charset US_ASCII = Charset.forName("US-ASCII"); - private static final int TYPE_TO_SIZE_MAP[] = new int[11]; - private static final int UNSIGNED_SHORT_MAX = 65535; - private static final long UNSIGNED_LONG_MAX = 4294967295L; - private static final long LONG_MAX = Integer.MAX_VALUE; - private static final long LONG_MIN = Integer.MIN_VALUE; - - static { - TYPE_TO_SIZE_MAP[TYPE_UNSIGNED_BYTE] = 1; - TYPE_TO_SIZE_MAP[TYPE_ASCII] = 1; - TYPE_TO_SIZE_MAP[TYPE_UNSIGNED_SHORT] = 2; - TYPE_TO_SIZE_MAP[TYPE_UNSIGNED_LONG] = 4; - TYPE_TO_SIZE_MAP[TYPE_UNSIGNED_RATIONAL] = 8; - TYPE_TO_SIZE_MAP[TYPE_UNDEFINED] = 1; - TYPE_TO_SIZE_MAP[TYPE_LONG] = 4; - TYPE_TO_SIZE_MAP[TYPE_RATIONAL] = 8; - } - - static final int SIZE_UNDEFINED = 0; - - // Exif TagId - private final short mTagId; - // Exif Tag Type - private final short mDataType; - // If tag has defined count - private boolean mHasDefinedDefaultComponentCount; - // Actual data count in tag (should be number of elements in value array) - private int mComponentCountActual; - // The ifd that this tag should be put in - private int mIfd; - // The value (array of elements of type Tag Type) - private Object mValue; - // Value offset in exif header. - private int mOffset; - - private static final SimpleDateFormat TIME_FORMAT = new SimpleDateFormat("yyyy:MM:dd kk:mm:ss"); - - /** - * Returns true if the given IFD is a valid IFD. - */ - public static boolean isValidIfd(int ifdId) { - return ifdId == IfdId.TYPE_IFD_0 || ifdId == IfdId.TYPE_IFD_1 - || ifdId == IfdId.TYPE_IFD_EXIF || ifdId == IfdId.TYPE_IFD_INTEROPERABILITY - || ifdId == IfdId.TYPE_IFD_GPS; - } - - /** - * Returns true if a given type is a valid tag type. - */ - public static boolean isValidType(short type) { - return type == TYPE_UNSIGNED_BYTE || type == TYPE_ASCII || - type == TYPE_UNSIGNED_SHORT || type == TYPE_UNSIGNED_LONG || - type == TYPE_UNSIGNED_RATIONAL || type == TYPE_UNDEFINED || - type == TYPE_LONG || type == TYPE_RATIONAL; - } - - // Use builtTag in ExifInterface instead of constructor. - ExifTag(short tagId, short type, int componentCount, int ifd, - boolean hasDefinedComponentCount) { - mTagId = tagId; - mDataType = type; - mComponentCountActual = componentCount; - mHasDefinedDefaultComponentCount = hasDefinedComponentCount; - mIfd = ifd; - mValue = null; - } - - /** - * Gets the element size of the given data type in bytes. - * - * @see #TYPE_ASCII - * @see #TYPE_LONG - * @see #TYPE_RATIONAL - * @see #TYPE_UNDEFINED - * @see #TYPE_UNSIGNED_BYTE - * @see #TYPE_UNSIGNED_LONG - * @see #TYPE_UNSIGNED_RATIONAL - * @see #TYPE_UNSIGNED_SHORT - */ - public static int getElementSize(short type) { - return TYPE_TO_SIZE_MAP[type]; - } - - /** - * Returns the ID of the IFD this tag belongs to. - * - * @see IfdId#TYPE_IFD_0 - * @see IfdId#TYPE_IFD_1 - * @see IfdId#TYPE_IFD_EXIF - * @see IfdId#TYPE_IFD_GPS - * @see IfdId#TYPE_IFD_INTEROPERABILITY - */ - public int getIfd() { - return mIfd; - } - - protected void setIfd(int ifdId) { - mIfd = ifdId; - } - - /** - * Gets the TID of this tag. - */ - public short getTagId() { - return mTagId; - } - - /** - * Gets the data type of this tag - * - * @see #TYPE_ASCII - * @see #TYPE_LONG - * @see #TYPE_RATIONAL - * @see #TYPE_UNDEFINED - * @see #TYPE_UNSIGNED_BYTE - * @see #TYPE_UNSIGNED_LONG - * @see #TYPE_UNSIGNED_RATIONAL - * @see #TYPE_UNSIGNED_SHORT - */ - public short getDataType() { - return mDataType; - } - - /** - * Gets the total data size in bytes of the value of this tag. - */ - public int getDataSize() { - return getComponentCount() * getElementSize(getDataType()); - } - - /** - * Gets the component count of this tag. - */ - - // TODO: fix integer overflows with this - public int getComponentCount() { - return mComponentCountActual; - } - - /** - * Sets the component count of this tag. Call this function before - * setValue() if the length of value does not match the component count. - */ - protected void forceSetComponentCount(int count) { - mComponentCountActual = count; - } - - /** - * Returns true if this ExifTag contains value; otherwise, this tag will - * contain an offset value that is determined when the tag is written. - */ - public boolean hasValue() { - return mValue != null; - } - - /** - * Sets integer values into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_SHORT}. This method will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_SHORT}, - * {@link #TYPE_UNSIGNED_LONG}, or {@link #TYPE_LONG}.</li> - * <li>The value overflows.</li> - * <li>The value.length does NOT match the component count in the definition - * for this tag.</li> - * </ul> - */ - public boolean setValue(int[] value) { - if (checkBadComponentCount(value.length)) { - return false; - } - if (mDataType != TYPE_UNSIGNED_SHORT && mDataType != TYPE_LONG && - mDataType != TYPE_UNSIGNED_LONG) { - return false; - } - if (mDataType == TYPE_UNSIGNED_SHORT && checkOverflowForUnsignedShort(value)) { - return false; - } else if (mDataType == TYPE_UNSIGNED_LONG && checkOverflowForUnsignedLong(value)) { - return false; - } - - long[] data = new long[value.length]; - for (int i = 0; i < value.length; i++) { - data[i] = value[i]; - } - mValue = data; - mComponentCountActual = value.length; - return true; - } - - /** - * Sets integer value into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_SHORT}, or {@link #TYPE_LONG}. This method - * will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_SHORT}, - * {@link #TYPE_UNSIGNED_LONG}, or {@link #TYPE_LONG}.</li> - * <li>The value overflows.</li> - * <li>The component count in the definition of this tag is not 1.</li> - * </ul> - */ - public boolean setValue(int value) { - return setValue(new int[] { - value - }); - } - - /** - * Sets long values into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_LONG}. This method will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_LONG}.</li> - * <li>The value overflows.</li> - * <li>The value.length does NOT match the component count in the definition - * for this tag.</li> - * </ul> - */ - public boolean setValue(long[] value) { - if (checkBadComponentCount(value.length) || mDataType != TYPE_UNSIGNED_LONG) { - return false; - } - if (checkOverflowForUnsignedLong(value)) { - return false; - } - mValue = value; - mComponentCountActual = value.length; - return true; - } - - /** - * Sets long values into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_LONG}. This method will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_LONG}.</li> - * <li>The value overflows.</li> - * <li>The component count in the definition for this tag is not 1.</li> - * </ul> - */ - public boolean setValue(long value) { - return setValue(new long[] { - value - }); - } - - /** - * Sets a string value into this tag. This method should be used for tags of - * type {@link #TYPE_ASCII}. The string is converted to an ASCII string. - * Characters that cannot be converted are replaced with '?'. The length of - * the string must be equal to either (component count -1) or (component - * count). The final byte will be set to the string null terminator '\0', - * overwriting the last character in the string if the value.length is equal - * to the component count. This method will fail if: - * <ul> - * <li>The data type is not {@link #TYPE_ASCII} or {@link #TYPE_UNDEFINED}.</li> - * <li>The length of the string is not equal to (component count -1) or - * (component count) in the definition for this tag.</li> - * </ul> - */ - public boolean setValue(String value) { - if (mDataType != TYPE_ASCII && mDataType != TYPE_UNDEFINED) { - return false; - } - - byte[] buf = value.getBytes(US_ASCII); - byte[] finalBuf = buf; - if (buf.length > 0) { - finalBuf = (buf[buf.length - 1] == 0 || mDataType == TYPE_UNDEFINED) ? buf : Arrays - .copyOf(buf, buf.length + 1); - } else if (mDataType == TYPE_ASCII && mComponentCountActual == 1) { - finalBuf = new byte[] { 0 }; - } - int count = finalBuf.length; - if (checkBadComponentCount(count)) { - return false; - } - mComponentCountActual = count; - mValue = finalBuf; - return true; - } - - /** - * Sets Rational values into this tag. This method should be used for tags - * of type {@link #TYPE_UNSIGNED_RATIONAL}, or {@link #TYPE_RATIONAL}. This - * method will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_RATIONAL} - * or {@link #TYPE_RATIONAL}.</li> - * <li>The value overflows.</li> - * <li>The value.length does NOT match the component count in the definition - * for this tag.</li> - * </ul> - * - * @see Rational - */ - public boolean setValue(Rational[] value) { - if (checkBadComponentCount(value.length)) { - return false; - } - if (mDataType != TYPE_UNSIGNED_RATIONAL && mDataType != TYPE_RATIONAL) { - return false; - } - if (mDataType == TYPE_UNSIGNED_RATIONAL && checkOverflowForUnsignedRational(value)) { - return false; - } else if (mDataType == TYPE_RATIONAL && checkOverflowForRational(value)) { - return false; - } - - mValue = value; - mComponentCountActual = value.length; - return true; - } - - /** - * Sets a Rational value into this tag. This method should be used for tags - * of type {@link #TYPE_UNSIGNED_RATIONAL}, or {@link #TYPE_RATIONAL}. This - * method will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_RATIONAL} - * or {@link #TYPE_RATIONAL}.</li> - * <li>The value overflows.</li> - * <li>The component count in the definition for this tag is not 1.</li> - * </ul> - * - * @see Rational - */ - public boolean setValue(Rational value) { - return setValue(new Rational[] { - value - }); - } - - /** - * Sets byte values into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_BYTE} or {@link #TYPE_UNDEFINED}. This method - * will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_BYTE} or - * {@link #TYPE_UNDEFINED} .</li> - * <li>The length does NOT match the component count in the definition for - * this tag.</li> - * </ul> - */ - public boolean setValue(byte[] value, int offset, int length) { - if (checkBadComponentCount(length)) { - return false; - } - if (mDataType != TYPE_UNSIGNED_BYTE && mDataType != TYPE_UNDEFINED) { - return false; - } - mValue = new byte[length]; - System.arraycopy(value, offset, mValue, 0, length); - mComponentCountActual = length; - return true; - } - - /** - * Equivalent to setValue(value, 0, value.length). - */ - public boolean setValue(byte[] value) { - return setValue(value, 0, value.length); - } - - /** - * Sets byte value into this tag. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_BYTE} or {@link #TYPE_UNDEFINED}. This method - * will fail if: - * <ul> - * <li>The component type of this tag is not {@link #TYPE_UNSIGNED_BYTE} or - * {@link #TYPE_UNDEFINED} .</li> - * <li>The component count in the definition for this tag is not 1.</li> - * </ul> - */ - public boolean setValue(byte value) { - return setValue(new byte[] { - value - }); - } - - /** - * Sets the value for this tag using an appropriate setValue method for the - * given object. This method will fail if: - * <ul> - * <li>The corresponding setValue method for the class of the object passed - * in would fail.</li> - * <li>There is no obvious way to cast the object passed in into an EXIF tag - * type.</li> - * </ul> - */ - public boolean setValue(Object obj) { - if (obj == null) { - return false; - } else if (obj instanceof Short) { - return setValue(((Short) obj).shortValue() & 0x0ffff); - } else if (obj instanceof String) { - return setValue((String) obj); - } else if (obj instanceof int[]) { - return setValue((int[]) obj); - } else if (obj instanceof long[]) { - return setValue((long[]) obj); - } else if (obj instanceof Rational) { - return setValue((Rational) obj); - } else if (obj instanceof Rational[]) { - return setValue((Rational[]) obj); - } else if (obj instanceof byte[]) { - return setValue((byte[]) obj); - } else if (obj instanceof Integer) { - return setValue(((Integer) obj).intValue()); - } else if (obj instanceof Long) { - return setValue(((Long) obj).longValue()); - } else if (obj instanceof Byte) { - return setValue(((Byte) obj).byteValue()); - } else if (obj instanceof Short[]) { - // Nulls in this array are treated as zeroes. - Short[] arr = (Short[]) obj; - int[] fin = new int[arr.length]; - for (int i = 0; i < arr.length; i++) { - fin[i] = (arr[i] == null) ? 0 : arr[i].shortValue() & 0x0ffff; - } - return setValue(fin); - } else if (obj instanceof Integer[]) { - // Nulls in this array are treated as zeroes. - Integer[] arr = (Integer[]) obj; - int[] fin = new int[arr.length]; - for (int i = 0; i < arr.length; i++) { - fin[i] = (arr[i] == null) ? 0 : arr[i].intValue(); - } - return setValue(fin); - } else if (obj instanceof Long[]) { - // Nulls in this array are treated as zeroes. - Long[] arr = (Long[]) obj; - long[] fin = new long[arr.length]; - for (int i = 0; i < arr.length; i++) { - fin[i] = (arr[i] == null) ? 0 : arr[i].longValue(); - } - return setValue(fin); - } else if (obj instanceof Byte[]) { - // Nulls in this array are treated as zeroes. - Byte[] arr = (Byte[]) obj; - byte[] fin = new byte[arr.length]; - for (int i = 0; i < arr.length; i++) { - fin[i] = (arr[i] == null) ? 0 : arr[i].byteValue(); - } - return setValue(fin); - } else { - return false; - } - } - - /** - * Sets a timestamp to this tag. The method converts the timestamp with the - * format of "yyyy:MM:dd kk:mm:ss" and calls {@link #setValue(String)}. This - * method will fail if the data type is not {@link #TYPE_ASCII} or the - * component count of this tag is not 20 or undefined. - * - * @param time the number of milliseconds since Jan. 1, 1970 GMT - * @return true on success - */ - public boolean setTimeValue(long time) { - // synchronized on TIME_FORMAT as SimpleDateFormat is not thread safe - synchronized (TIME_FORMAT) { - return setValue(TIME_FORMAT.format(new Date(time))); - } - } - - /** - * Gets the value as a String. This method should be used for tags of type - * {@link #TYPE_ASCII}. - * - * @return the value as a String, or null if the tag's value does not exist - * or cannot be converted to a String. - */ - public String getValueAsString() { - if (mValue == null) { - return null; - } else if (mValue instanceof String) { - return (String) mValue; - } else if (mValue instanceof byte[]) { - return new String((byte[]) mValue, US_ASCII); - } - return null; - } - - /** - * Gets the value as a String. This method should be used for tags of type - * {@link #TYPE_ASCII}. - * - * @param defaultValue the String to return if the tag's value does not - * exist or cannot be converted to a String. - * @return the tag's value as a String, or the defaultValue. - */ - public String getValueAsString(String defaultValue) { - String s = getValueAsString(); - if (s == null) { - return defaultValue; - } - return s; - } - - /** - * Gets the value as a byte array. This method should be used for tags of - * type {@link #TYPE_UNDEFINED} or {@link #TYPE_UNSIGNED_BYTE}. - * - * @return the value as a byte array, or null if the tag's value does not - * exist or cannot be converted to a byte array. - */ - public byte[] getValueAsBytes() { - if (mValue instanceof byte[]) { - return (byte[]) mValue; - } - return null; - } - - /** - * Gets the value as a byte. If there are more than 1 bytes in this value, - * gets the first byte. This method should be used for tags of type - * {@link #TYPE_UNDEFINED} or {@link #TYPE_UNSIGNED_BYTE}. - * - * @param defaultValue the byte to return if tag's value does not exist or - * cannot be converted to a byte. - * @return the tag's value as a byte, or the defaultValue. - */ - public byte getValueAsByte(byte defaultValue) { - byte[] b = getValueAsBytes(); - if (b == null || b.length < 1) { - return defaultValue; - } - return b[0]; - } - - /** - * Gets the value as an array of Rationals. This method should be used for - * tags of type {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}. - * - * @return the value as as an array of Rationals, or null if the tag's value - * does not exist or cannot be converted to an array of Rationals. - */ - public Rational[] getValueAsRationals() { - if (mValue instanceof Rational[]) { - return (Rational[]) mValue; - } - return null; - } - - /** - * Gets the value as a Rational. If there are more than 1 Rationals in this - * value, gets the first one. This method should be used for tags of type - * {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}. - * - * @param defaultValue the Rational to return if tag's value does not exist - * or cannot be converted to a Rational. - * @return the tag's value as a Rational, or the defaultValue. - */ - public Rational getValueAsRational(Rational defaultValue) { - Rational[] r = getValueAsRationals(); - if (r == null || r.length < 1) { - return defaultValue; - } - return r[0]; - } - - /** - * Gets the value as a Rational. If there are more than 1 Rationals in this - * value, gets the first one. This method should be used for tags of type - * {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}. - * - * @param defaultValue the numerator of the Rational to return if tag's - * value does not exist or cannot be converted to a Rational (the - * denominator will be 1). - * @return the tag's value as a Rational, or the defaultValue. - */ - public Rational getValueAsRational(long defaultValue) { - Rational defaultVal = new Rational(defaultValue, 1); - return getValueAsRational(defaultVal); - } - - /** - * Gets the value as an array of ints. This method should be used for tags - * of type {@link #TYPE_UNSIGNED_SHORT}, {@link #TYPE_UNSIGNED_LONG}. - * - * @return the value as as an array of ints, or null if the tag's value does - * not exist or cannot be converted to an array of ints. - */ - public int[] getValueAsInts() { - if (mValue == null) { - return null; - } else if (mValue instanceof long[]) { - long[] val = (long[]) mValue; - int[] arr = new int[val.length]; - for (int i = 0; i < val.length; i++) { - arr[i] = (int) val[i]; // Truncates - } - return arr; - } - return null; - } - - /** - * Gets the value as an int. If there are more than 1 ints in this value, - * gets the first one. This method should be used for tags of type - * {@link #TYPE_UNSIGNED_SHORT}, {@link #TYPE_UNSIGNED_LONG}. - * - * @param defaultValue the int to return if tag's value does not exist or - * cannot be converted to an int. - * @return the tag's value as a int, or the defaultValue. - */ - public int getValueAsInt(int defaultValue) { - int[] i = getValueAsInts(); - if (i == null || i.length < 1) { - return defaultValue; - } - return i[0]; - } - - /** - * Gets the value as an array of longs. This method should be used for tags - * of type {@link #TYPE_UNSIGNED_LONG}. - * - * @return the value as as an array of longs, or null if the tag's value - * does not exist or cannot be converted to an array of longs. - */ - public long[] getValueAsLongs() { - if (mValue instanceof long[]) { - return (long[]) mValue; - } - return null; - } - - /** - * Gets the value or null if none exists. If there are more than 1 longs in - * this value, gets the first one. This method should be used for tags of - * type {@link #TYPE_UNSIGNED_LONG}. - * - * @param defaultValue the long to return if tag's value does not exist or - * cannot be converted to a long. - * @return the tag's value as a long, or the defaultValue. - */ - public long getValueAsLong(long defaultValue) { - long[] l = getValueAsLongs(); - if (l == null || l.length < 1) { - return defaultValue; - } - return l[0]; - } - - /** - * Gets the tag's value or null if none exists. - */ - public Object getValue() { - return mValue; - } - - /** - * Gets a long representation of the value. - * - * @param defaultValue value to return if there is no value or value is a - * rational with a denominator of 0. - * @return the tag's value as a long, or defaultValue if no representation - * exists. - */ - public long forceGetValueAsLong(long defaultValue) { - long[] l = getValueAsLongs(); - if (l != null && l.length >= 1) { - return l[0]; - } - byte[] b = getValueAsBytes(); - if (b != null && b.length >= 1) { - return b[0]; - } - Rational[] r = getValueAsRationals(); - if (r != null && r.length >= 1 && r[0].getDenominator() != 0) { - return (long) r[0].toDouble(); - } - return defaultValue; - } - - /** - * Gets a string representation of the value. - */ - public String forceGetValueAsString() { - if (mValue == null) { - return ""; - } else if (mValue instanceof byte[]) { - if (mDataType == TYPE_ASCII) { - return new String((byte[]) mValue, US_ASCII); - } else { - return Arrays.toString((byte[]) mValue); - } - } else if (mValue instanceof long[]) { - if (((long[]) mValue).length == 1) { - return String.valueOf(((long[]) mValue)[0]); - } else { - return Arrays.toString((long[]) mValue); - } - } else if (mValue instanceof Object[]) { - if (((Object[]) mValue).length == 1) { - Object val = ((Object[]) mValue)[0]; - if (val == null) { - return ""; - } else { - return val.toString(); - } - } else { - return Arrays.toString((Object[]) mValue); - } - } else { - return mValue.toString(); - } - } - - /** - * Gets the value for type {@link #TYPE_ASCII}, {@link #TYPE_LONG}, - * {@link #TYPE_UNDEFINED}, {@link #TYPE_UNSIGNED_BYTE}, - * {@link #TYPE_UNSIGNED_LONG}, or {@link #TYPE_UNSIGNED_SHORT}. For - * {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}, call - * {@link #getRational(int)} instead. - * - * @exception IllegalArgumentException if the data type is - * {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}. - */ - protected long getValueAt(int index) { - if (mValue instanceof long[]) { - return ((long[]) mValue)[index]; - } else if (mValue instanceof byte[]) { - return ((byte[]) mValue)[index]; - } - throw new IllegalArgumentException("Cannot get integer value from " - + convertTypeToString(mDataType)); - } - - /** - * Gets the {@link #TYPE_ASCII} data. - * - * @exception IllegalArgumentException If the type is NOT - * {@link #TYPE_ASCII}. - */ - protected String getString() { - if (mDataType != TYPE_ASCII) { - throw new IllegalArgumentException("Cannot get ASCII value from " - + convertTypeToString(mDataType)); - } - return new String((byte[]) mValue, US_ASCII); - } - - /* - * Get the converted ascii byte. Used by ExifOutputStream. - */ - protected byte[] getStringByte() { - return (byte[]) mValue; - } - - /** - * Gets the {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL} data. - * - * @exception IllegalArgumentException If the type is NOT - * {@link #TYPE_RATIONAL} or {@link #TYPE_UNSIGNED_RATIONAL}. - */ - protected Rational getRational(int index) { - if ((mDataType != TYPE_RATIONAL) && (mDataType != TYPE_UNSIGNED_RATIONAL)) { - throw new IllegalArgumentException("Cannot get RATIONAL value from " - + convertTypeToString(mDataType)); - } - return ((Rational[]) mValue)[index]; - } - - /** - * Equivalent to getBytes(buffer, 0, buffer.length). - */ - protected void getBytes(byte[] buf) { - getBytes(buf, 0, buf.length); - } - - /** - * Gets the {@link #TYPE_UNDEFINED} or {@link #TYPE_UNSIGNED_BYTE} data. - * - * @param buf the byte array in which to store the bytes read. - * @param offset the initial position in buffer to store the bytes. - * @param length the maximum number of bytes to store in buffer. If length > - * component count, only the valid bytes will be stored. - * @exception IllegalArgumentException If the type is NOT - * {@link #TYPE_UNDEFINED} or {@link #TYPE_UNSIGNED_BYTE}. - */ - protected void getBytes(byte[] buf, int offset, int length) { - if ((mDataType != TYPE_UNDEFINED) && (mDataType != TYPE_UNSIGNED_BYTE)) { - throw new IllegalArgumentException("Cannot get BYTE value from " - + convertTypeToString(mDataType)); - } - System.arraycopy(mValue, 0, buf, offset, - (length > mComponentCountActual) ? mComponentCountActual : length); - } - - /** - * Gets the offset of this tag. This is only valid if this data size > 4 and - * contains an offset to the location of the actual value. - */ - protected int getOffset() { - return mOffset; - } - - /** - * Sets the offset of this tag. - */ - protected void setOffset(int offset) { - mOffset = offset; - } - - protected void setHasDefinedCount(boolean d) { - mHasDefinedDefaultComponentCount = d; - } - - protected boolean hasDefinedCount() { - return mHasDefinedDefaultComponentCount; - } - - private boolean checkBadComponentCount(int count) { - if (mHasDefinedDefaultComponentCount && (mComponentCountActual != count)) { - return true; - } - return false; - } - - private static String convertTypeToString(short type) { - switch (type) { - case TYPE_UNSIGNED_BYTE: - return "UNSIGNED_BYTE"; - case TYPE_ASCII: - return "ASCII"; - case TYPE_UNSIGNED_SHORT: - return "UNSIGNED_SHORT"; - case TYPE_UNSIGNED_LONG: - return "UNSIGNED_LONG"; - case TYPE_UNSIGNED_RATIONAL: - return "UNSIGNED_RATIONAL"; - case TYPE_UNDEFINED: - return "UNDEFINED"; - case TYPE_LONG: - return "LONG"; - case TYPE_RATIONAL: - return "RATIONAL"; - default: - return ""; - } - } - - private boolean checkOverflowForUnsignedShort(int[] value) { - for (int v : value) { - if (v > UNSIGNED_SHORT_MAX || v < 0) { - return true; - } - } - return false; - } - - private boolean checkOverflowForUnsignedLong(long[] value) { - for (long v : value) { - if (v < 0 || v > UNSIGNED_LONG_MAX) { - return true; - } - } - return false; - } - - private boolean checkOverflowForUnsignedLong(int[] value) { - for (int v : value) { - if (v < 0) { - return true; - } - } - return false; - } - - private boolean checkOverflowForUnsignedRational(Rational[] value) { - for (Rational v : value) { - if (v.getNumerator() < 0 || v.getDenominator() < 0 - || v.getNumerator() > UNSIGNED_LONG_MAX - || v.getDenominator() > UNSIGNED_LONG_MAX) { - return true; - } - } - return false; - } - - private boolean checkOverflowForRational(Rational[] value) { - for (Rational v : value) { - if (v.getNumerator() < LONG_MIN || v.getDenominator() < LONG_MIN - || v.getNumerator() > LONG_MAX - || v.getDenominator() > LONG_MAX) { - return true; - } - } - return false; - } - - @Override - public boolean equals(Object obj) { - if (obj == null) { - return false; - } - if (obj instanceof ExifTag) { - ExifTag tag = (ExifTag) obj; - if (tag.mTagId != this.mTagId - || tag.mComponentCountActual != this.mComponentCountActual - || tag.mDataType != this.mDataType) { - return false; - } - if (mValue != null) { - if (tag.mValue == null) { - return false; - } else if (mValue instanceof long[]) { - if (!(tag.mValue instanceof long[])) { - return false; - } - return Arrays.equals((long[]) mValue, (long[]) tag.mValue); - } else if (mValue instanceof Rational[]) { - if (!(tag.mValue instanceof Rational[])) { - return false; - } - return Arrays.equals((Rational[]) mValue, (Rational[]) tag.mValue); - } else if (mValue instanceof byte[]) { - if (!(tag.mValue instanceof byte[])) { - return false; - } - return Arrays.equals((byte[]) mValue, (byte[]) tag.mValue); - } else { - return mValue.equals(tag.mValue); - } - } else { - return tag.mValue == null; - } - } - return false; - } - - @Override - public String toString() { - return String.format("tag id: %04X\n", mTagId) + "ifd id: " + mIfd + "\ntype: " - + convertTypeToString(mDataType) + "\ncount: " + mComponentCountActual - + "\noffset: " + mOffset + "\nvalue: " + forceGetValueAsString() + "\n"; - } - -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/IfdData.java b/gallerycommon/src/com/android/gallery3d/exif/IfdData.java deleted file mode 100644 index 093944aec..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/IfdData.java +++ /dev/null @@ -1,152 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.util.HashMap; -import java.util.Map; - -/** - * This class stores all the tags in an IFD. - * - * @see ExifData - * @see ExifTag - */ -class IfdData { - - private final int mIfdId; - private final Map<Short, ExifTag> mExifTags = new HashMap<Short, ExifTag>(); - private int mOffsetToNextIfd = 0; - private static final int[] sIfds = { - IfdId.TYPE_IFD_0, IfdId.TYPE_IFD_1, IfdId.TYPE_IFD_EXIF, - IfdId.TYPE_IFD_INTEROPERABILITY, IfdId.TYPE_IFD_GPS - }; - /** - * Creates an IfdData with given IFD ID. - * - * @see IfdId#TYPE_IFD_0 - * @see IfdId#TYPE_IFD_1 - * @see IfdId#TYPE_IFD_EXIF - * @see IfdId#TYPE_IFD_GPS - * @see IfdId#TYPE_IFD_INTEROPERABILITY - */ - IfdData(int ifdId) { - mIfdId = ifdId; - } - - static protected int[] getIfds() { - return sIfds; - } - - /** - * Get a array the contains all {@link ExifTag} in this IFD. - */ - protected ExifTag[] getAllTags() { - return mExifTags.values().toArray(new ExifTag[mExifTags.size()]); - } - - /** - * Gets the ID of this IFD. - * - * @see IfdId#TYPE_IFD_0 - * @see IfdId#TYPE_IFD_1 - * @see IfdId#TYPE_IFD_EXIF - * @see IfdId#TYPE_IFD_GPS - * @see IfdId#TYPE_IFD_INTEROPERABILITY - */ - protected int getId() { - return mIfdId; - } - - /** - * Gets the {@link ExifTag} with given tag id. Return null if there is no - * such tag. - */ - protected ExifTag getTag(short tagId) { - return mExifTags.get(tagId); - } - - /** - * Adds or replaces a {@link ExifTag}. - */ - protected ExifTag setTag(ExifTag tag) { - tag.setIfd(mIfdId); - return mExifTags.put(tag.getTagId(), tag); - } - - protected boolean checkCollision(short tagId) { - return mExifTags.get(tagId) != null; - } - - /** - * Removes the tag of the given ID - */ - protected void removeTag(short tagId) { - mExifTags.remove(tagId); - } - - /** - * Gets the tags count in the IFD. - */ - protected int getTagCount() { - return mExifTags.size(); - } - - /** - * Sets the offset of next IFD. - */ - protected void setOffsetToNextIfd(int offset) { - mOffsetToNextIfd = offset; - } - - /** - * Gets the offset of next IFD. - */ - protected int getOffsetToNextIfd() { - return mOffsetToNextIfd; - } - - /** - * Returns true if all tags in this two IFDs are equal. Note that tags of - * IFDs offset or thumbnail offset will be ignored. - */ - @Override - public boolean equals(Object obj) { - if (this == obj) { - return true; - } - if (obj == null) { - return false; - } - if (obj instanceof IfdData) { - IfdData data = (IfdData) obj; - if (data.getId() == mIfdId && data.getTagCount() == getTagCount()) { - ExifTag[] tags = data.getAllTags(); - for (ExifTag tag : tags) { - if (ExifInterface.isOffsetTag(tag.getTagId())) { - continue; - } - ExifTag tag2 = mExifTags.get(tag.getTagId()); - if (!tag.equals(tag2)) { - return false; - } - } - return true; - } - } - return false; - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/IfdId.java b/gallerycommon/src/com/android/gallery3d/exif/IfdId.java deleted file mode 100644 index 7842edbd4..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/IfdId.java +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -/** - * The constants of the IFD ID defined in EXIF spec. - */ -public interface IfdId { - public static final int TYPE_IFD_0 = 0; - public static final int TYPE_IFD_1 = 1; - public static final int TYPE_IFD_EXIF = 2; - public static final int TYPE_IFD_INTEROPERABILITY = 3; - public static final int TYPE_IFD_GPS = 4; - /* This is used in ExifData to allocate enough IfdData */ - static final int TYPE_IFD_COUNT = 5; - -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/JpegHeader.java b/gallerycommon/src/com/android/gallery3d/exif/JpegHeader.java deleted file mode 100644 index e3e787eff..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/JpegHeader.java +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -class JpegHeader { - public static final short SOI = (short) 0xFFD8; - public static final short APP1 = (short) 0xFFE1; - public static final short APP0 = (short) 0xFFE0; - public 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. - */ - public static final short SOF0 = (short) 0xFFC0; - public static final short SOF15 = (short) 0xFFCF; - public static final short DHT = (short) 0xFFC4; - public static final short JPG = (short) 0xFFC8; - public static final short DAC = (short) 0xFFCC; - - public static final boolean isSofMarker(short marker) { - return marker >= SOF0 && marker <= SOF15 && marker != DHT && marker != JPG - && marker != DAC; - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/OrderedDataOutputStream.java b/gallerycommon/src/com/android/gallery3d/exif/OrderedDataOutputStream.java deleted file mode 100644 index 428e6b9fc..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/OrderedDataOutputStream.java +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -import java.io.FilterOutputStream; -import java.io.IOException; -import java.io.OutputStream; -import java.nio.ByteBuffer; -import java.nio.ByteOrder; - -class OrderedDataOutputStream extends FilterOutputStream { - private final ByteBuffer mByteBuffer = ByteBuffer.allocate(4); - - public OrderedDataOutputStream(OutputStream out) { - super(out); - } - - public OrderedDataOutputStream setByteOrder(ByteOrder order) { - mByteBuffer.order(order); - return this; - } - - public OrderedDataOutputStream writeShort(short value) throws IOException { - mByteBuffer.rewind(); - mByteBuffer.putShort(value); - out.write(mByteBuffer.array(), 0, 2); - return this; - } - - public OrderedDataOutputStream writeInt(int value) throws IOException { - mByteBuffer.rewind(); - mByteBuffer.putInt(value); - out.write(mByteBuffer.array()); - return this; - } - - public OrderedDataOutputStream writeRational(Rational rational) throws IOException { - writeInt((int) rational.getNumerator()); - writeInt((int) rational.getDenominator()); - return this; - } -} diff --git a/gallerycommon/src/com/android/gallery3d/exif/Rational.java b/gallerycommon/src/com/android/gallery3d/exif/Rational.java deleted file mode 100644 index 591d63faf..000000000 --- a/gallerycommon/src/com/android/gallery3d/exif/Rational.java +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 2012 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.gallery3d.exif; - -/** - * The rational data type of EXIF tag. Contains a pair of longs representing the - * numerator and denominator of a Rational number. - */ -public class Rational { - - private final long mNumerator; - private final long mDenominator; - - /** - * Create a Rational with a given numerator and denominator. - * - * @param nominator - * @param denominator - */ - public Rational(long nominator, long denominator) { - mNumerator = nominator; - mDenominator = denominator; - } - - /** - * Create a copy of a Rational. - */ - public Rational(Rational r) { - mNumerator = r.mNumerator; - mDenominator = r.mDenominator; - } - - /** - * Gets the numerator of the rational. - */ - public long getNumerator() { - return mNumerator; - } - - /** - * Gets the denominator of the rational - */ - public long getDenominator() { - return mDenominator; - } - - /** - * Gets the rational value as type double. Will cause a divide-by-zero error - * if the denominator is 0. - */ - public double toDouble() { - return mNumerator / (double) mDenominator; - } - - @Override - public boolean equals(Object obj) { - if (obj == null) { - return false; - } - if (this == obj) { - return true; - } - if (obj instanceof Rational) { - Rational data = (Rational) obj; - return mNumerator == data.mNumerator && mDenominator == data.mDenominator; - } - return false; - } - - @Override - public String toString() { - return mNumerator + "/" + mDenominator; - } -} |