/*
* AppletVorbisSPIWorkaround.
*
*-----------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
package ddf.minim;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.UnsupportedAudioFileException;
/**
* From JRE/JDK 1.3.0_01 on, applets can not use provided service
* providers. Obviously, in these later releases of the Java 2 platform
* the service providers are only searched on the system/boot classloader
* and NOT on the classloader of the applet.
* Workaround found by Tritonus Team.
*/
public class AppletVorbisSPIWorkaround {
public static boolean DEBUG = false;
public static String useragent = null;
public static AudioInputStream getAudioInputStream(
AudioFormat targetFormat, AudioInputStream sourceStream) {
try {
return AudioSystem.getAudioInputStream(targetFormat, sourceStream);
} catch (IllegalArgumentException iae) {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec");
}
try {
Class
.forName("javazoom.spi.vorbis.sampled.convert.VorbisFormatConversionProvider");
return new javazoom.spi.vorbis.sampled.convert.VorbisFormatConversionProvider()
.getAudioInputStream(targetFormat, sourceStream);
} catch (ClassNotFoundException cnfe) {
throw new IllegalArgumentException(
"Vorbis codec not properly installed");
}
}
}
public static AudioFileFormat getAudioFileFormat(File file)
throws UnsupportedAudioFileException, IOException {
InputStream inputStream = new BufferedInputStream(new FileInputStream(
file));
try {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec (AudioFileFormat:file)");
}
return getAudioFileFormat(inputStream);
} finally {
inputStream.close();
}
}
public static AudioInputStream getAudioInputStream(File file)
throws UnsupportedAudioFileException, IOException {
InputStream inputStream = new BufferedInputStream(new FileInputStream(
file));
try {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec (AudioInputStream:file)");
}
return getAudioInputStream(inputStream);
} catch (UnsupportedAudioFileException e) {
inputStream.close();
throw e;
} catch (IOException e) {
inputStream.close();
throw e;
}
}
public static AudioInputStream getAudioInputStream(URL url)
throws UnsupportedAudioFileException, IOException {
InputStream inputStream = new BufferedInputStream(url.openStream());
try {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec (AudioInputStream:url)");
}
return getAudioInputStream(inputStream);
} catch (UnsupportedAudioFileException e) {
inputStream.close();
throw e;
} catch (IOException e) {
inputStream.close();
throw e;
}
}
public static AudioFileFormat getAudioFileFormat(URL url)
throws UnsupportedAudioFileException, IOException {
InputStream inputStream = null;
if (useragent != null) {
URLConnection myCon = url.openConnection();
myCon.setUseCaches(false);
myCon.setDoInput(true);
myCon.setDoOutput(true);
myCon.setAllowUserInteraction(false);
myCon.setRequestProperty("User-Agent", useragent);
myCon.setRequestProperty("Accept", "*/*");
myCon.setRequestProperty("Icy-Metadata", "1");
myCon.setRequestProperty("Connection", "close");
inputStream = new BufferedInputStream(myCon.getInputStream());
} else {
inputStream = new BufferedInputStream(url.openStream());
}
try {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec AudioFileFormat(url)");
}
return getAudioFileFormat(inputStream);
} finally {
inputStream.close();
}
}
public static AudioFileFormat getAudioFileFormat(InputStream is)
throws UnsupportedAudioFileException, IOException {
try {
//return AudioSystem.getAudioFileFormat(is);
throw new Exception();
} catch (Exception iae) {
if (DEBUG == true) {
System.err
.println("Using AppletVorbisSPIWorkaround to get codec");
}
try {
// 2.2 Fix.
is.mark(4096);
Class
.forName("javazoom.spi.vorbis.sampled.file.VorbisAudioFileReader");
return new javazoom.spi.vorbis.sampled.file.VorbisAudioFileReader()
.getAudioFileFormat(is);
} catch (ClassNotFoundException cnfe) {
throw new IllegalArgumentException(
"Vorbis codec not properly installed");
}
}
// 2.2 Fix.
finally {
is.reset();
}
}
public static AudioInputStream getAudioInputStream(InputStream is)
throws UnsupportedAudioFileException, IOException {
try {
//return AudioSystem.getAudioInputStream(is);
throw new Exception();
} catch (Exception iae) {
if (DEBUG == true) {
System.err
.println("Using AppleVorbisSPIWorkaround to get codec");
}
try {
/*
Class.forName("javazoom.spi.vorbis.sampled.file.VorbisAudioFileReader");
return new javazoom.spi.vorbis.sampled.file.VorbisAudioFileReader().
getAudioInputStream(is);
*/
Class
.forName("org.tritonus.sampled.file.jorbis.JorbisAudioFileReader");
return new org.tritonus.sampled.file.jorbis.JorbisAudioFileReader()
.getAudioInputStream(is);
} catch (ClassNotFoundException cnfe) {
throw new IllegalArgumentException(
"Vorbis codec not properly installed:"
+ cnfe.getMessage());
}
}
}
}