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77 lines
1.5 KiB
Java
77 lines
1.5 KiB
Java
GSMEncoder
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import java.io.IOException;
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import java.io.File;
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import javax.sound.sampled.AudioFileFormat;
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import javax.sound.sampled.AudioFormat;
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import javax.sound.sampled.AudioInputStream;
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import javax.sound.sampled.AudioSystem;
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// not portable, but cannot be avoided currently
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import org.tritonus.share.sampled.AudioFileTypes;
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import org.tritonus.share.sampled.Encodings;
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GSMEncoder.java
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public class GSMEncoder
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{
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public static void main(String[] args)
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{
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if (args.length != 2)
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{
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printUsageAndExit();
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}
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File pcmFile = new File(args[0]);
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File gsmFile = new File(args[1]);
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AudioInputStream ais = null;
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try
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{
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ais = AudioSystem.getAudioInputStream(pcmFile);
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}
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catch (Exception e)
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{
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e.printStackTrace();
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}
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if (ais == null)
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{
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out("cannot open audio file");
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System.exit(1);
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}
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AudioFormat.Encoding targetEncoding = Encodings.getEncoding("GSM0610");
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AudioInputStream gsmAIS = AudioSystem.getAudioInputStream(targetEncoding, ais);
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AudioFileFormat.Type fileType = AudioFileTypes.getType("GSM", ".gsm");
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int nWrittenFrames = 0;
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try
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{
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nWrittenFrames = AudioSystem.write(gsmAIS, fileType, gsmFile);
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}
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catch (IOException e)
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{
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e.printStackTrace();
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}
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}
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private static void printUsageAndExit()
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{
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out("GSMEncoder: usage:");
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out(" java GSMEncoder ");
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System.exit(1);
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}
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private static void out(String strMessage)
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{
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System.out.println(strMessage);
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}
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}
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/*** GSMEncoder.java ***/
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Built by Text2Html
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