jass.generators
Class StreamingAudioGroove

java.lang.Object
  jass.engine.Out
      jass.generators.AudioGroove
          jass.generators.StreamingAudioGroove

All Implemented Interfaces:

Source

public abstract class StreamingAudioGroove
extends AudioGroove

Position based playback of audio date (gramophone model). Wavfile (mono) is indexed with position of needle on record. Every call to getBuffer this UG polls for position of needle in seconds, and uses this with the previous saved value to index a wav file and compute an audio buffer for the corresponding segment. Method to obtain position of needle is abstract. Streams audio off source

Author:

Kees van den Doel (kvdoel@cs.ubc.ca)

Field Summary

Fields inherited from class jass.generators.AudioGroove

grooveBuffer, grooveBufferLength, name, posNeedle, posNeedlePast, srate, srateGrooveBuffer, srateRatio

Fields inherited from class jass.engine.Out

buf, bufferSize, bufOld, lock

Constructor Summary

StreamingAudioGroove(float srate, int bufferSize, java.lang.String fn)
Construct Groove from named file.

StreamingAudioGroove(float srate, int bufferSize, java.net.URL url)
Construct Groove from named URL.

StreamingAudioGroove(int bufferSize)
For derived classes

Method Summary

void	computeBuffer() Compute the next buffer.
float[]	getGrooveBuffer() Get the groove buffer as array, which is not possible.

Methods inherited from class jass.generators.AudioGroove

getPositionOfNeedle

Methods inherited from class jass.engine.Out

clearBuffer, copyToOld, getBuffer, getBuffer, getBufferSize, getTime, peekAtBuffer, resetTime, setBufferSize, setTime, setTimeAndNotify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StreamingAudioGroove

public StreamingAudioGroove(int bufferSize)

For derived classes

Parameters:

bufferSize - buffer size

StreamingAudioGroove

public StreamingAudioGroove(float srate,
                            int bufferSize,
                            java.lang.String fn)
                     throws UnsupportedAudioFileFormatException

Construct Groove from named file.

Parameters:

srate - sampling rate in Hertz.

bufferSize - bufferSize of this Out

fn - Audio file name.

Throws:

UnsupportedAudioFileFormatException

StreamingAudioGroove

public StreamingAudioGroove(float srate,
                            int bufferSize,
                            java.net.URL url)
                     throws UnsupportedAudioFileFormatException

Construct Groove from named URL.

Parameters:

srate - sampling rate in Hertz.

bufferSize - bufferSize of this Out

url - Audio file url name.

Throws:

UnsupportedAudioFileFormatException

Method Detail

getGrooveBuffer

public float[] getGrooveBuffer()

Get the groove buffer as array, which is not possible. So return null

Overrides:

getGrooveBuffer in class AudioGroove

Returns:

null

computeBuffer

public void computeBuffer()

Compute the next buffer.

Overrides:

computeBuffer in class AudioGroove