micromod.output
Class OSSOutputDevice

java.lang.Object
  micromod.output.PCM16StreamOutputDevice
      micromod.output.OSSOutputDevice

All Implemented Interfaces:

OutputDevice, PCM16, StreamOutputDevice

public class OSSOutputDevice

extends PCM16StreamOutputDevice

The OSSOutputDevice provides audio output for pre-1.3 Java VMs by outputing directly to the Linux native audio subsystem. The device will operate on any system that provides libMMOSS.so.

Field Summary

Fields inherited from class micromod.output.PCM16StreamOutputDevice

bytesPerFrame, CONVERT_BUFFER_FRAMES, convertBuffer, converter

Constructor Summary

OSSOutputDevice(int samplingRate)

Method Summary

void	close() Close the output device and release any resources.
int	getSamplingRate()
protected void	ossInit(int samplingRate)
void	pause() Pause playback immediately.
void	start() Begin playing audio.
void	stop() Stop playback.
void	write(byte[] data, int length) Write length bytes of audio to the output device This method should return only when all of the audio has been written to the device, except if the device is stopped or paused, in which case the method should return immediately.

Methods inherited from class micromod.output.PCM16StreamOutputDevice

initialise, write

Methods inherited from class java.lang.Object

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

Constructor Detail

OSSOutputDevice

public OSSOutputDevice(int samplingRate)
                throws OutputDeviceException

Method Detail

start

public void start()

Description copied from interface: OutputDevice

Begin playing audio. You should call this if you want any output! You must also call this after pause() or stop() to resume playback..

write

public void write(byte[] data,
                  int length)

Description copied from interface: StreamOutputDevice

Write length bytes of audio to the output device This method should return only when all of the audio has been written to the device, except if the device is stopped or paused, in which case the method should return immediately.

pause

public void pause()

Description copied from interface: StreamOutputDevice

Pause playback immediately. Calling start() will continue where you left off.

stop

public void stop()

Description copied from interface: OutputDevice

Stop playback. All audio written to the device should be played before this method returns.

close

public void close()

Description copied from interface: OutputDevice

Close the output device and release any resources. Once this method is called, the device must be reopened to allow playback. Reopening could involve reinstantiation or calling a device specific open() method.

getSamplingRate

public int getSamplingRate()

Returns:

The PCM sampling rate

ossInit

protected void ossInit(int samplingRate)
                throws OutputDeviceException

Throws:

OutputDeviceException