com.cloudgarden.audio
Class AudioMediaLineSource

java.lang.Object
  |
  +--com.cloudgarden.audio.DefaultAudioObject
        |
        +--com.cloudgarden.audio.DefaultAudioSource
              |
              +--com.cloudgarden.audio.AudioMediaLineSource

All Implemented Interfaces:

AudioObject, AudioSource

public class AudioMediaLineSource

extends DefaultAudioSource

AudioSource wrapper for a javax.media capture device, enabling audio data to be captured from a microphone etc (avoiding the bugs encountered by the javax.sound.sampled capture devices when a SourceDataLine is running at the same time). Requires the JMF to be installed.

Fields inherited from class com.cloudgarden.audio.DefaultAudioSource

sending, sendThread, sink

Fields inherited from class com.cloudgarden.audio.DefaultAudioObject

contentType, exception, format, listeners, paused, pauseSync, running, waiting

Fields inherited from interface com.cloudgarden.audio.AudioObject

END_OF_DATA

Constructor Summary

AudioMediaLineSource(javax.sound.sampled.AudioFormat format)
Creates new AudioMediaFileSource.

Method Summary

int	read(byte[] data, int offset, int len) Used to read data from this source - called by the AudioSink which this source is connected to (if its startGetting method is used) so need not be called explicitly by an application.
void	startSending() Starts a thread which reads audio data from the file.

Methods inherited from class com.cloudgarden.audio.DefaultAudioSource

drain, getSink, isSending, read, setAudioFormat, setBufferSize, setContentType, setSink, stopSending

Methods inherited from class com.cloudgarden.audio.DefaultAudioObject

addTransferListener, blockWhilePaused, blockWhileWaiting, bytesTransferred, canSetAudioFormat, getAudioFormat, getContentType, getLastException, isPaused, isWaiting, removeTransferListener, setPaused

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.cloudgarden.audio.AudioObject

addTransferListener, canSetAudioFormat, getAudioFormat, getContentType, isPaused, isWaiting, removeTransferListener, setPaused

Constructor Detail

AudioMediaLineSource

public AudioMediaLineSource(javax.sound.sampled.AudioFormat format)
                     throws javax.sound.sampled.UnsupportedAudioFileException,
                            java.io.IOException

Creates new AudioMediaFileSource. Reads data from the file (which can be in any format readable by the JMF) and converts it to the format determined by the 'format' parameter.

Method Detail

read

public int read(byte[] data,
                int offset,
                int len)
         throws java.io.IOException

Description copied from interface: AudioSource

Used to read data from this source - called by the AudioSink which this source is connected to (if its startGetting method is used) so need not be called explicitly by an application. Blocks if this source is paused. Returns the number of bytes read, or END_OF_DATA if all the available data has been read - eg if the end of a file has been reached, or if the stopSending() method has been called.

Following copied from interface: com.cloudgarden.audio.AudioSource

See Also:

AudioSource.setSink(com.cloudgarden.audio.AudioSink), AudioSink#startGetting, AudioObject.setPaused(boolean)

startSending

public void startSending()
                  throws java.io.IOException

Starts a thread which reads audio data from the file.

Overrides:

startSending in class DefaultAudioSource

Throws:

an - IOException if the file cannot be opened for reading