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[DEV] 2.4 tools

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This commit is contained in:
Edouard DUPIN
2015-09-19 10:52:26 +02:00
commit b6ae08bd22
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java/basic_version/cstr/est/Wave.java Normal file
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//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
// \\
// Centre for Speech Technology Research \\
// University of Edinburgh, UK \\
// Copyright (c) 1996,1997 \\
// All Rights Reserved. \\
// Permission is hereby granted, free of charge, to use and distribute \\
// this software and its documentation without restriction, including \\
// without limitation the rights to use, copy, modify, merge, publish, \\
// distribute, sublicense, and/or sell copies of this work, and to \\
// permit persons to whom this work is furnished to do so, subject to \\
// the following conditions: \\
// 1. The code must retain the above copyright notice, this list of \\
// conditions and the following disclaimer. \\
// 2. Any modifications must be clearly marked as such. \\
// 3. Original authors' names are not delete. \\
// 4. The authors' names are not used to endorse or promote products \\
// derived from this software without specific prior written \\
// permission. \\
// THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK \\
// DISCLAIM ALL WARRANTIES With REGARD TO THIS SOFTWARE, INCLUDING \\
// ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT \\
// SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE \\
// FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES \\
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN \\
// AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, \\
// ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF \\
// THIS SOFTWARE. \\
// \\
//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
// \\
// Author: Richard Caley (rjc@cstr.ed.ac.uk) \\
// -------------------------------------------------------------------- \\
// A simple java wave class. \\
// \\
//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
package cstr.est ;
import java.lang.*;
import java.util.*;
import java.net.*;
import java.io.*;
import sun.applet.*;
public class Wave
{
int rate;
int amplitude_cache=-1;
short [] data;
File fn;
public Wave()
{
data=null;
fn=null;
}
public Wave(byte [] bytes)
throws UnsupportedEncodingException
{
fn=null;
if (!parse(bytes))
{
throw new UnsupportedEncodingException("Can't create Wave from this bytestream");
}
}
public Wave(File file)
throws UnsupportedEncodingException, IOException
{
FileInputStream is = new FileInputStream(file);
int n=0;
byte [] buf = new byte[n];
while (true)
{
byte [] ibuf = new byte[10240];
int nr = is.read(ibuf, 0, 10240);
if (nr == -1)
break;
if (n==0)
{
buf = ibuf;
n = nr;
}
else
{
byte [] nbuf = new byte[n+nr];
for(int i=0; i<n; i++)
nbuf[i] = buf[i];
for(int i=0; i<nr; i++)
nbuf[i+n] = ibuf[i];
buf=nbuf;
n += nr;
}
}
if (!parse(buf))
{
throw new UnsupportedEncodingException("Can't create Wave from this bytestream");
}
}
public void finalize()
{
if (fn != null)
fn.delete();
}
public String name()
{
return toString();
}
public void resample(int rate)
{
}
public int amplitude(int c)
{
if (amplitude_cache<0)
for(int i=0; i<data.length; i++)
{
short d=data[i];
if (d>=0 && d > amplitude_cache)
amplitude_cache=d;
if (d<0 && -d > amplitude_cache)
amplitude_cache=-d;
}
return amplitude_cache;
}
public int num_samples()
{
return data.length;
}
public void cpp_getScanlines(int c,
byte[] line,
int lstart, int lnum,
int x, int chunk,
int width, int height,
int amplitude
)
{
}
private File mkFilename()
{
StringBuffer fn= new StringBuffer(50);
fn.append("/tmp/jsapi_");
fn.append(this.toString());
fn.append(".au");
return new File(fn.toString());
}
public boolean parse(byte[] bytes)
{
//clip = new AppletAudioClip(bytes);
fn=mkFilename();
try {
FileOutputStream os = new FileOutputStream(fn);
os.write(bytes);
os.close();
} catch (IOException ex) {
System.err.println("IO Exception: "+ex.getMessage());
return false;
}
int magic = (bytes[0] <<24) + (bytes[1] <<16) + (bytes[2] <<8) + bytes[3];
int smagic = (bytes[3] <<24) + (bytes[2] <<16) + (bytes[1] <<8) + bytes[0];
if (magic == 0x2e736e64)
{
return true;
}
return false;
}
public void play()
{
if (fn != null)
{
try {
String command = "na_play "+fn.toString();
// System.out.println("play command "+command);
Process p = Runtime.getRuntime().exec(command);
p.waitFor();
} catch (IOException ex) {
} catch (InterruptedException ex) {
}
}
}
public void stop()
{
}
public void load(String filename) throws FileNotFoundException
{
throw new FileNotFoundException("Load Not yet Implemented");
}
public void save(String filename, String format) throws IOException
{
throw new IOException("Save Not yet Implemented");
}
}