package cn.org.hentai.jtt1078.test;
|
|
import de.sciss.jump3r.lowlevel.LameEncoder;
|
import de.sciss.jump3r.mp3.Lame;
|
|
import javax.sound.sampled.AudioFormat;
|
import java.io.ByteArrayOutputStream;
|
import java.io.FileInputStream;
|
import java.io.FileOutputStream;
|
|
/**
|
* Created by matrixy on 2020/4/27.
|
*/
|
public class MP3Test
|
{
|
public static void main(String[] args) throws Exception
|
{
|
AudioFormat sourceFormat = new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 8000, 16, 1, 1 * 2, -1, false);
|
LameEncoder encoder = new LameEncoder(sourceFormat, 256, 3, Lame.MEDIUM, false);
|
|
byte[] block = new byte[320];
|
int len = -1;
|
FileInputStream fis = new FileInputStream("d:\\temp\\hello.pcm");
|
ByteArrayOutputStream mp3 = new ByteArrayOutputStream(encoder.getOutputBufferSize());
|
byte[] buffer = new byte[encoder.getPCMBufferSize()];
|
int bytesToTransfer = 0;
|
int bytesWritten;
|
int currentPcmPosition = 0;
|
|
FileOutputStream fos = new FileOutputStream("d:\\temp\\fuck.mp3");
|
|
while ((len = fis.read(block)) > -1)
|
{
|
bytesToTransfer = len;
|
currentPcmPosition = 0;
|
while (0 < (bytesWritten = encoder.encodeBuffer(block, currentPcmPosition, bytesToTransfer, buffer)))
|
{
|
currentPcmPosition += bytesToTransfer;
|
bytesToTransfer = Math.min(buffer.length, len - currentPcmPosition);
|
|
mp3.write(buffer, 0, bytesWritten);
|
fos.write(buffer, 0, bytesWritten);
|
|
System.out.println(String.format("pcm data: %4d, written: %4d, pos: %4d", len, bytesWritten, currentPcmPosition));
|
}
|
System.out.println();
|
}
|
|
fos.close();
|
fis.close();
|
|
encoder.close();
|
}
|
}
|
