From 489112cf828c97550c0e6e0c617de8c4d3a5b735 Mon Sep 17 00:00:00 2001
From: Yegor Kozlov <yegor@apache.org>
Date: Sat, 19 Apr 2008 11:09:59 +0000
Subject: [PATCH] Support for getting embedded sounds from slide show

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@649796 13f79535-47bb-0310-9956-ffa450edef68
---
 .../apache/poi/hslf/record/RecordTypes.java   |   5 +-
 .../src/org/apache/poi/hslf/record/Sound.java | 136 ++++++++++++++++++
 .../poi/hslf/record/SoundCollection.java      |  73 ++++++++++
 .../org/apache/poi/hslf/record/SoundData.java | 103 +++++++++++++
 .../apache/poi/hslf/usermodel/SlideShow.java  |   8 ++
 .../apache/poi/hslf/usermodel/SoundData.java  |  93 ++++++++++++
 .../org/apache/poi/hslf/data/ringin.wav       | Bin 0 -> 10026 bytes
 .../org/apache/poi/hslf/data/sound.ppt        | Bin 0 -> 43520 bytes
 .../org/apache/poi/hslf/record/TestSound.java |  86 +++++++++++
 .../poi/hslf/usermodel/TestSoundData.java     |  63 ++++++++
 10 files changed, 565 insertions(+), 2 deletions(-)
 create mode 100755 src/scratchpad/src/org/apache/poi/hslf/record/Sound.java
 create mode 100755 src/scratchpad/src/org/apache/poi/hslf/record/SoundCollection.java
 create mode 100755 src/scratchpad/src/org/apache/poi/hslf/record/SoundData.java
 create mode 100755 src/scratchpad/src/org/apache/poi/hslf/usermodel/SoundData.java
 create mode 100755 src/scratchpad/testcases/org/apache/poi/hslf/data/ringin.wav
 create mode 100755 src/scratchpad/testcases/org/apache/poi/hslf/data/sound.ppt
 create mode 100755 src/scratchpad/testcases/org/apache/poi/hslf/record/TestSound.java
 create mode 100755 src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestSoundData.java

diff --git a/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java b/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java
index a1bc499453..45038f7a28 100644
--- a/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java
+++ b/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java
@@ -70,9 +70,10 @@ public class RecordTypes {
     public static final Type List = new Type(2000,null);
     public static final Type FontCollection = new Type(2005,FontCollection.class);
     public static final Type BookmarkCollection = new Type(2019,null);
+    public static final Type SoundCollection = new Type(2020,SoundCollection.class);
     public static final Type SoundCollAtom = new Type(2021,null);
-    public static final Type Sound = new Type(2022,null);
-    public static final Type SoundData = new Type(2023,null);
+    public static final Type Sound = new Type(2022,Sound.class);
+    public static final Type SoundData = new Type(2023,SoundData.class);
     public static final Type BookmarkSeedAtom = new Type(2025,null);
     public static final Type ColorSchemeAtom = new Type(2032,ColorSchemeAtom.class);
     public static final Type ExObjRefAtom = new Type(3009,null);
diff --git a/src/scratchpad/src/org/apache/poi/hslf/record/Sound.java b/src/scratchpad/src/org/apache/poi/hslf/record/Sound.java
new file mode 100755
index 0000000000..211a9b0ee4
--- /dev/null
+++ b/src/scratchpad/src/org/apache/poi/hslf/record/Sound.java
@@ -0,0 +1,136 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.record;
+
+import org.apache.poi.util.POILogger;
+
+import java.io.OutputStream;
+import java.io.IOException;
+
+/**
+ * A container holding information about a sound. It contains:
+ * <p>
+ * <li>1. CString (4026), Instance 0: Name of sound (e.g. "crash")
+ * <li>2. CString (4026), Instance 1: Type of sound (e.g. ".wav")
+ * <li>3. CString (4026), Instance 2: Reference id of sound in sound collection
+ * <li>4. CString (4026), Instance 3, optional: Built-in id of sound, for sounds we ship. This is the id that?s in the reg file.
+ * <li>5. SoundData (2023), optional
+ * </p>
+ *
+ * @author Yegor Kozlov
+ */
+public class Sound extends RecordContainer {
+    /**
+     * Record header data.
+     */
+    private byte[] _header;
+
+    // Links to our more interesting children
+    private CString _name;
+    private CString _type;
+    private SoundData _data;
+
+
+    /**
+     * Set things up, and find our more interesting children
+     *
+     * @param source the source data as a byte array.
+     * @param start the start offset into the byte array.
+     * @param len the length of the slice in the byte array.
+     */
+    protected Sound(byte[] source, int start, int len) {
+        // Grab the header
+        _header = new byte[8];
+        System.arraycopy(source,start,_header,0,8);
+
+        // Find our children
+        _children = Record.findChildRecords(source,start+8,len-8);
+        findInterestingChildren();
+    }
+
+    private void findInterestingChildren() {
+        // First child should be the ExHyperlinkAtom
+        if(_children[0] instanceof CString) {
+            _name = (CString)_children[0];
+        } else {
+            logger.log(POILogger.ERROR, "First child record wasn't a CString, was of type " + _children[0].getRecordType());
+        }
+
+        // Second child should be the ExOleObjAtom
+        if (_children[1] instanceof CString) {
+            _type = (CString)_children[1];
+        } else {
+            logger.log(POILogger.ERROR, "Second child record wasn't a CString, was of type " + _children[1].getRecordType());
+        }
+
+        for (int i = 2; i < _children.length; i++) {
+            if(_children[i] instanceof SoundData){
+                _data = (SoundData)_children[i];
+                break;
+            }
+        }
+
+    }
+
+    /**
+     * Returns the type (held as a little endian in bytes 3 and 4)
+     * that this class handles.
+     *
+     * @return the record type.
+     */
+    public long getRecordType() {
+        return RecordTypes.Sound.typeID;
+    }
+
+    /**
+     * Have the contents printer out into an OutputStream, used when
+     * writing a file back out to disk.
+     *
+     * @param out the output stream.
+     * @throws java.io.IOException if there was an error writing to the stream.
+     */
+    public void writeOut(OutputStream out) throws IOException {
+        writeOut(_header[0],_header[1],getRecordType(),_children,out);
+    }
+
+    /**
+     * Name of the sound (e.g. "crash")
+     *
+     * @return name of the sound
+     */
+    public String getSoundName(){
+        return _name.getText();
+    }
+
+    /**
+     * Type of the sound (e.g. ".wav")
+     *
+     * @return type of the sound
+     */
+    public String getSoundType(){
+        return _type.getText();
+    }
+
+    /**
+     * The sound data
+     *
+     * @return the sound data.
+     */
+    public byte[] getSoundData(){
+        return _data == null ? null : _data.getData();
+    }
+}
diff --git a/src/scratchpad/src/org/apache/poi/hslf/record/SoundCollection.java b/src/scratchpad/src/org/apache/poi/hslf/record/SoundCollection.java
new file mode 100755
index 0000000000..c244859ea0
--- /dev/null
+++ b/src/scratchpad/src/org/apache/poi/hslf/record/SoundCollection.java
@@ -0,0 +1,73 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.record;
+
+import org.apache.poi.util.POILogger;
+
+import java.io.OutputStream;
+import java.io.IOException;
+
+/**
+ * Is a container for all sound related atoms and containers. It contains:
+ *<li>1. SoundCollAtom (2021)
+ *<li>2. Sound (2022), for each sound, if any
+ *
+ * @author Yegor Kozlov
+ */
+public class SoundCollection extends RecordContainer {
+    /**
+     * Record header data.
+     */
+    private byte[] _header;
+
+    /**
+     * Set things up, and find our more interesting children
+     *
+     * @param source the source data as a byte array.
+     * @param start the start offset into the byte array.
+     * @param len the length of the slice in the byte array.
+     */
+    protected SoundCollection(byte[] source, int start, int len) {
+        // Grab the header
+        _header = new byte[8];
+        System.arraycopy(source,start,_header,0,8);
+
+        // Find our children
+        _children = Record.findChildRecords(source,start+8,len-8);
+    }
+
+    /**
+     * Returns the type (held as a little endian in bytes 3 and 4)
+     * that this class handles.
+     *
+     * @return the record type.
+     */
+    public long getRecordType() {
+        return RecordTypes.SoundCollection.typeID;
+    }
+
+    /**
+     * Have the contents printer out into an OutputStream, used when
+     * writing a file back out to disk.
+     *
+     * @param out the output stream.
+     * @throws java.io.IOException if there was an error writing to the stream.
+     */
+    public void writeOut(OutputStream out) throws IOException {
+        writeOut(_header[0],_header[1],getRecordType(),_children,out);
+    }
+}
diff --git a/src/scratchpad/src/org/apache/poi/hslf/record/SoundData.java b/src/scratchpad/src/org/apache/poi/hslf/record/SoundData.java
new file mode 100755
index 0000000000..42be48f2ac
--- /dev/null
+++ b/src/scratchpad/src/org/apache/poi/hslf/record/SoundData.java
@@ -0,0 +1,103 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.record;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.zip.InflaterInputStream;
+
+import org.apache.poi.util.LittleEndian;
+
+/**
+ * Storage for embedded sounds.
+ *
+ * @author Yegor Kozlov
+ */
+public class SoundData extends RecordAtom {
+
+    /**
+     * Record header.
+     */
+    private byte[] _header;
+
+    /**
+     * Record data.
+     */
+    private byte[] _data;
+
+    /**
+     * Constructs a new empty sound container.
+     */
+    protected SoundData() {
+        _header = new byte[8];
+        _data = new byte[0];
+
+        LittleEndian.putShort(_header, 2, (short)getRecordType());
+        LittleEndian.putInt(_header, 4, _data.length);
+    }
+
+    /**
+     * Constructs the link related atom record from its
+     *  source data.
+     *
+     * @param source the source data as a byte array.
+     * @param start the start offset into the byte array.
+     * @param len the length of the slice in the byte array.
+     */
+    protected SoundData(byte[] source, int start, int len) {
+        // Get the header.
+        _header = new byte[8];
+        System.arraycopy(source,start,_header,0,8);
+
+        // Get the record data.
+        _data = new byte[len-8];
+        System.arraycopy(source,start+8,_data,0,len-8);
+    }
+
+    /**
+     * Returns the sound data.
+     *
+     * @return the sound data 
+     */
+    public byte[] getData() {
+        return _data;
+    }
+
+    /**
+     * Gets the record type.
+     *
+     * @return the record type.
+     */
+    public long getRecordType() {
+        return RecordTypes.SoundData.typeID;
+    }
+
+    /**
+     * Write the contents of the record back, so it can be written
+     * to disk.
+     *
+     * @param out the output stream to write to.
+     * @throws java.io.IOException if an error occurs.
+     */
+    public void writeOut(OutputStream out) throws IOException {
+        out.write(_header);
+        out.write(_data);
+    }
+}
diff --git a/src/scratchpad/src/org/apache/poi/hslf/usermodel/SlideShow.java b/src/scratchpad/src/org/apache/poi/hslf/usermodel/SlideShow.java
index 418dc3d2f0..828255087b 100644
--- a/src/scratchpad/src/org/apache/poi/hslf/usermodel/SlideShow.java
+++ b/src/scratchpad/src/org/apache/poi/hslf/usermodel/SlideShow.java
@@ -494,6 +494,14 @@ public class SlideShow
     public ObjectData[] getEmbeddedObjects() {
         return _hslfSlideShow.getEmbeddedObjects();
     }
+
+    /**
+     * Returns the data of all the embedded sounds in the SlideShow
+     */
+    public SoundData[] getSoundData() {
+        return SoundData.find(_documentRecord);
+    }
+
 	/**
 	 * Return the current page size
 	 */
diff --git a/src/scratchpad/src/org/apache/poi/hslf/usermodel/SoundData.java b/src/scratchpad/src/org/apache/poi/hslf/usermodel/SoundData.java
new file mode 100755
index 0000000000..ad7922ef61
--- /dev/null
+++ b/src/scratchpad/src/org/apache/poi/hslf/usermodel/SoundData.java
@@ -0,0 +1,93 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.usermodel;
+
+import org.apache.poi.hslf.record.*;
+
+import java.util.ArrayList;
+
+/**
+ * A class that represents sound data embedded in a slide show.
+ *
+ * @author Yegor Kozlov
+ */
+public class SoundData {
+    /**
+     * The record that contains the object data.
+     */
+    private Sound _container;
+
+    /**
+     * Creates the object data wrapping the record that contains the sound data.
+     *
+     * @param container the record that contains the sound data.
+     */
+    public SoundData(Sound container) {
+        this._container = container;
+    }
+
+    /**
+     * Name of the sound (e.g. "crash")
+     *
+     * @return name of the sound
+     */
+    public String getSoundName(){
+        return _container.getSoundName();
+    }
+
+    /**
+     * Type of the sound (e.g. ".wav")
+     *
+     * @return type of the sound
+     */
+    public String getSoundType(){
+        return _container.getSoundType();
+    }
+
+    /**
+     * Gets an input stream which returns the binary of the sound data.
+     *
+     * @return the input stream which will contain the binary of the sound data.
+     */
+    public byte[] getData() {
+        return _container.getSoundData();
+    }
+
+    /**
+     * Find all sound records in the supplied Document records
+     *
+     * @param document the document to find in
+     * @return the array with the sound data
+     */
+    public static SoundData[] find(Document document){
+        ArrayList lst = new ArrayList();
+        Record[] ch = document.getChildRecords();
+        for (int i = 0; i < ch.length; i++) {
+            if(ch[i].getRecordType() == RecordTypes.SoundCollection.typeID){
+                RecordContainer col = (RecordContainer)ch[i];
+                Record[] sr = col.getChildRecords();
+                for (int j = 0; j < sr.length; j++) {
+                    if(sr[j] instanceof Sound){
+                        lst.add(new SoundData((Sound)sr[j]));
+                    }
+                }
+            }
+
+        }
+        return (SoundData[])lst.toArray(new SoundData[lst.size()]);
+    }
+}
diff --git a/src/scratchpad/testcases/org/apache/poi/hslf/data/ringin.wav b/src/scratchpad/testcases/org/apache/poi/hslf/data/ringin.wav
new file mode 100755
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diff --git a/src/scratchpad/testcases/org/apache/poi/hslf/data/sound.ppt b/src/scratchpad/testcases/org/apache/poi/hslf/data/sound.ppt
new file mode 100755
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diff --git a/src/scratchpad/testcases/org/apache/poi/hslf/record/TestSound.java b/src/scratchpad/testcases/org/apache/poi/hslf/record/TestSound.java
new file mode 100755
index 0000000000..97a4b7c5b5
--- /dev/null
+++ b/src/scratchpad/testcases/org/apache/poi/hslf/record/TestSound.java
@@ -0,0 +1,86 @@
+
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.record;
+
+
+import junit.framework.TestCase;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Arrays;
+
+import org.apache.poi.hslf.HSLFSlideShow;
+import org.apache.poi.hslf.usermodel.SlideShow;
+
+/**
+ * Tests Sound-related records: SoundCollection(2020), Sound(2022) and SoundData(2023)).
+ *
+ * @author Yegor Kozlov
+ */
+public class TestSound extends TestCase {
+	public void testRealFile() throws Exception {
+		String cwd = System.getProperty("HSLF.testdata.path");
+		FileInputStream is = new FileInputStream(new File(cwd, "sound.ppt"));
+		SlideShow ppt = new SlideShow(is);
+		is.close();
+
+		// Get the document
+		Document doc = ppt.getDocumentRecord();
+        SoundCollection soundCollection = null;
+        Record[] doc_ch = doc.getChildRecords();
+        for (int i = 0; i < doc_ch.length; i++) {
+            if(doc_ch[i] instanceof SoundCollection){
+                soundCollection = (SoundCollection)doc_ch[i];
+                break;
+            }
+        }
+        assertNotNull(soundCollection);
+
+        Sound sound = null;
+        Record[] sound_ch = soundCollection.getChildRecords();
+        int k = 0;
+        for (int i = 0; i < sound_ch.length; i++) {
+            if(sound_ch[i] instanceof Sound){
+                sound = (Sound)sound_ch[i];
+                k++;
+            }
+        }
+        assertNotNull(sound);
+        assertEquals(1, k);
+
+        assertEquals("ringin.wav", sound.getSoundName());
+        assertEquals(".WAV", sound.getSoundType());
+        assertNotNull(sound.getSoundData());
+
+        File f = new File(cwd, "ringin.wav");
+        int length = (int)f.length();
+        byte[] ref_data = new byte[length];
+        is = new FileInputStream(f);
+        is.read(ref_data);
+        is.close();
+
+        assertTrue(Arrays.equals(ref_data, sound.getSoundData()));
+
+	}
+}
diff --git a/src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestSoundData.java b/src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestSoundData.java
new file mode 100755
index 0000000000..95de38f8ba
--- /dev/null
+++ b/src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestSoundData.java
@@ -0,0 +1,63 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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 org.apache.poi.hslf.usermodel;
+
+import org.apache.poi.hslf.*;
+import org.apache.poi.hslf.exceptions.HSLFException;
+import org.apache.poi.hslf.blip.*;
+import org.apache.poi.hslf.model.*;
+import junit.framework.TestCase;
+
+import java.io.*;
+import java.util.Arrays;
+
+/**
+ * Test reading sound data from a ppt
+ *
+ * @author Yegor Kozlov
+ */
+public class TestSoundData extends TestCase{
+
+    protected File cwd;
+
+    public void setUp() throws Exception {
+        cwd = new File(System.getProperty("HSLF.testdata.path"));
+    }
+
+    /**
+     * Read a reference sound file from disk and compare it from the data extracted from the slide show
+     */ 
+    public void testSounds() throws Exception {
+        //read the reference sound file
+        File f = new File(cwd, "ringin.wav");
+        int length = (int)f.length();
+        byte[] ref_data = new byte[length];
+        FileInputStream is = new FileInputStream(f);
+        is.read(ref_data);
+        is.close();
+
+        is = new FileInputStream(new File(cwd, "sound.ppt"));
+        SlideShow ppt = new SlideShow(is);
+        is.close();
+
+        SoundData[] sound = ppt.getSoundData();
+        assertEquals("Expected 1 sound", 1, sound.length);
+
+        assertTrue(Arrays.equals(ref_data, sound[0].getData()));
+    }
+}
-- 
2.39.5