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/*
This file is part of the iText (R) project.
Copyright (c) 1998-2023 iText Group NV
Authors: Bruno Lowagie, Paulo Soares, et al.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License version 3
as published by the Free Software Foundation with the addition of the
following permission added to Section 15 as permitted in Section 7(a):
FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
OF THIRD PARTY RIGHTS
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program; if not, see http://www.gnu.org/licenses or write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA, 02110-1301 USA, or download the license from the following URL:
http://itextpdf.com/terms-of-use/
The interactive user interfaces in modified source and object code versions
of this program must display Appropriate Legal Notices, as required under
Section 5 of the GNU Affero General Public License.
In accordance with Section 7(b) of the GNU Affero General Public License,
a covered work must retain the producer line in every PDF that is created
or manipulated using iText.
You can be released from the requirements of the license by purchasing
a commercial license. Buying such a license is mandatory as soon as you
develop commercial activities involving the iText software without
disclosing the source code of your own applications.
These activities include: offering paid services to customers as an ASP,
serving PDFs on the fly in a web application, shipping iText with a closed
source product.
For more information, please contact iText Software Corp. at this
address: [email protected]
*/
package com.itextpdf.kernel.pdf.annot;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfDictionary;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfName;
import com.itextpdf.kernel.pdf.PdfNumber;
import com.itextpdf.kernel.pdf.PdfObject;
import com.itextpdf.kernel.pdf.PdfStream;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
public class PdfSoundAnnotation extends PdfMarkupAnnotation {
/**
* Creates a new Sound annotation.
* There is a problem playing *.wav files via internal player in Acrobat.
* The first byte of the audio stream data should be deleted, then wav file will be played correctly.
* Otherwise it will be broken. Other supporting file types don't have such problem.
* Sound annotations are deprecated in PDF 2.0.
*
* @param rect the rectangle that specifies annotation position and bounds on page
* @param sound the {@link PdfStream} with sound
*/
public PdfSoundAnnotation(Rectangle rect, PdfStream sound) {
super(rect);
put(PdfName.Sound, sound);
}
/**
* Instantiates a new {@link PdfSoundAnnotation} instance based on {@link PdfDictionary}
* instance, that represents existing annotation object in the document.
*
* @param pdfObject the {@link PdfDictionary} representing annotation object
* @see PdfAnnotation#makeAnnotation(PdfObject)
*/
protected PdfSoundAnnotation(PdfDictionary pdfObject) {
super(pdfObject);
}
/**
* Creates a sound annotation. Sound annotations are deprecated in PDF 2.0.
*
* @param document the {@link PdfDocument} to which annotation will be added
* @param rect the rectangle that specifies annotation position and bounds on page
* @param soundStream the {@link PdfStream} with sound
* @param sampleRate the sampling rate, in samples per second
* @param encoding the encoding format for the sample data
* @param channels the number of sound channels
* @param sampleSizeInBits the number of bits per sample value per channel
* @throws IOException in case of corrupted data or source stream problems
*/
public PdfSoundAnnotation(PdfDocument document, Rectangle rect, InputStream soundStream, float sampleRate, PdfName encoding, int channels, int sampleSizeInBits) throws IOException {
super(rect);
PdfStream sound = new PdfStream(document, correctWavFile(soundStream));
sound.put(PdfName.R, new PdfNumber(sampleRate));
sound.put(PdfName.E, encoding);
sound.put(PdfName.B, new PdfNumber(sampleSizeInBits));
sound.put(PdfName.C, new PdfNumber(channels));
put(PdfName.Sound, sound);
}
@Override
public PdfName getSubtype() {
return PdfName.Sound;
}
public PdfStream getSound() {
return getPdfObject().getAsStream(PdfName.Sound);
}
private static InputStream correctWavFile(InputStream is) throws IOException {
String header = "";
InputStream bufferedIn = new BufferedInputStream(is);
bufferedIn.mark(0);
for (int i = 0; i < 4; i++) {
header = header + (char) bufferedIn.read();
}
bufferedIn.reset();
if ("RIFF".equals(header)) {
bufferedIn.read();
}
return bufferedIn;
}
/**
* The name of an icon that is used in displaying the annotation. Possible values are different for different
* annotation types. See {@link #setIconName(PdfName)}.
* @return a {@link PdfName} that specifies the icon for displaying annotation, or null if icon name is not specified.
*/
public PdfName getIconName() {
return getPdfObject().getAsName(PdfName.Name);
}
/**
* The name of an icon that is used in displaying the annotation.
* @param name a {@link PdfName} that specifies the icon for displaying annotation. Possible values are different
* for different annotation types:
*
*
Speaker
*
Mic
*
* Additional names may be supported as well.
* @return this {@link PdfSoundAnnotation} instance.
*/
public PdfSoundAnnotation setIconName(PdfName name) {
return (PdfSoundAnnotation) put(PdfName.Name, name);
}
}
