Hi,
I got no replay for that. I have even put that question in rtpproxy
form but no response.
I have appended the header (PCMA or PCMU) to that file using a java
program and tried to play that file . It is playing but the audio
quality is very bad.
Java code that I wrote to apped header
-------------------------------------------------------------------------
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioFileFormat.Type;
/**
*
* @author chaitanya
*/
public class AudioFileWriter {
public static void main(String args[])
{
File file1 = new File("/home/chaitanya/Desktop/a.rtp"); //RTP file
recorded by rtp proxy
File file = new File("/home/chaitanya/Desktop/a.wav");//Out put wave
file
AudioFormat af=new AudioFormat(new
AudioFormat.Encoding("ULAW"),8000,8,1,4,8000,false); // ULAW or ALAW
what ever u r using and there respective bit rates
int length;
try{
AudioInputStream ais=new AudioInputStream(new
FileInputStream(file1),af,AudioSystem.NOT_SPECIFIED);
//ByteArrayInputStream bais=new
ByteArrayInputStream(b,0,b.length);
Type afft=new Type("WAVE","WAV");
AudioSystem.write(ais,afft,file);
}
catch(Exception e){
e.printStackTrace();
}
}
}
---------------------------------------------------------------------------------------------------
You can try this.
If you find any other solution please let me know.
regards,
Chaitu
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