Package soundPlayback

Class PlaybackProcess

java.lang.Object

PamguardMVC.PamProcess

PamguardMVC.PamInstantProcess

soundPlayback.PlaybackProcess

All Implemented Interfaces:

PamObserver, ProcessAnnotator

public class PlaybackProcess
extends PamInstantProcess

Pam Process for sound playback (controls data from multiple channels and then passes it on to the PlaybackSystem.

For file analysis, playback is through a chosen sound card. For playback of real time data, the playbackSystem is ideally handled by the real time acquisition system - so samples stay synchronised.

Author:

Doug Gillespie

See Also:

• PlaybackSystem

Constructor Summary

Constructors

Constructor	Description
PlaybackProcess(PlaybackControl playbackControl)

Method Summary

Modifier and Type	Method	Description
ArrayList	getCompatibleDataUnits()	A list of data block class types which are compatible as parent data blocks for the PamProcess.
ArrayList<PlaybackPreprocess>	getPreProcesses()
float	getSampleRate()	Note that this is the sample rate of the input data, not the playback output data.
PBSampleRateData	getSampleRateData()
double	getSourceSampleRate()	Get the source data sample rate.
void	newData(PamObservable o, PamDataUnit arg)
void	noteNewSettings()
void	pamStart()	Called for each process to tell it to start (may not be necessary for processes which are listening for data anyway).
void	pamStop()	Stops the process.
void	prepareProcess()	Called for each process before any of them receive the PamStart command
boolean	prepareProcess(double sourceSampleRate)
void	resetDecimator()	Called from speed slider on sidebar.
void	setGain(int gaindB)
void	setSampleRate(float sampleRate, boolean notify)	New sample rate
void	setUpFilter()	Setup a high pass filter on the data.

Methods inherited from class PamguardMVC.PamInstantProcess

setParentDataBlock, setParentDataBlock

Methods inherited from class PamguardMVC.PamProcess

absMillisecondsToSamples, absSamplesToMilliseconds, addData, addMultiPlexDataBlock, addOutputDataBlock, changedThreading, clearOldData, createAnnotations, destroyProcess, dumpBufferStatus, flushDataBlockBuffers, getAncestorDataBlock, getAnnotation, getChainPosition, getCpuPercent, getFrequencyRange, getLastSourceNotificationObject, getLastSourceNotificationType, getMuiltiplexDataBlock, getNumAnnotations, getNumMuiltiplexDataBlocks, getNumOutputDataBlocks, getObserverName, getObserverObject, getOfflineData, getOfflineData, getOutputDataBlock, getOutputDataBlocks, getPamControlledUnit, getParentDataBlock, getParentDataBlocks, getParentProcess, getProcessCheck, getProcessName, getRawSourceDataBlock, getRawSourceDataBlock, getRequiredDataHistory, getSourceDataBlock, getSourceProcess, hasOutputDatablock, isCanMultiThread, isExternalProcess, isMultiplex, makePamProcess, masterClockUpdate, notifyModelChanged, prepareProcessOK, processNewBuoyData, receiveSourceNotification, relMillisecondsToSamples, relSamplesToMilliseconds, removeAllDataBlocks, removeAllMultiPlexDataBlocks, removeMultiPlexDataBlock, removeObservable, removeOutputDatablock, resetDataBlocks, saveViewerData, setCanMultiThread, setExternalProcess, setMultiplex, setProcessCheck, setProcessName, setupProcess, toString, updateData

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

PlaybackProcess

public PlaybackProcess(PlaybackControl playbackControl)

Method Details

prepareProcess

public void prepareProcess()

Description copied from class: PamProcess

Called for each process before any of them receive the PamStart command

Overrides:

prepareProcess in class PamProcess

prepareProcess

public boolean prepareProcess(double sourceSampleRate)

resetDecimator

public void resetDecimator()

Called from speed slider on sidebar.

setSampleRate

public void setSampleRate(float sampleRate,
 boolean notify)

Description copied from interface: PamObserver

New sample rate

Specified by:

setSampleRate in interface PamObserver

Overrides:

setSampleRate in class PamProcess

Parameters:

notify - Notify other PamObservers and PamObservables in the chain.

pamStart

public void pamStart()

Description copied from class: PamProcess

Called for each process to tell it to start (may not be necessary for processes which are listening for data anyway).

Specified by:

pamStart in class PamProcess

pamStop

public void pamStop()

Description copied from class: PamProcess

Stops the process.

Specified by:

pamStop in class PamProcess

newData

public void newData(PamObservable o,
 PamDataUnit arg)

Overrides:

newData in class PamProcess

noteNewSettings

public void noteNewSettings()

Specified by:

noteNewSettings in interface PamObserver

Overrides:

noteNewSettings in class PamProcess

getSampleRate

public float getSampleRate()

Note that this is the sample rate of the input data, not the playback output data. Probably best not to call it !

Overrides:

getSampleRate in class PamProcess

Returns:

The sample rate in the process

getSourceSampleRate

public double getSourceSampleRate()

Get the source data sample rate.

Returns:

setUpFilter

public void setUpFilter()

Setup a high pass filter on the data. This will run before the decimator to keep it all simple !

setGain

public void setGain(int gaindB)

getSampleRateData

public PBSampleRateData getSampleRateData()

Returns:

the sampleRateData

getPreProcesses

public ArrayList<PlaybackPreprocess> getPreProcesses()

Returns:

the preProcesses

getCompatibleDataUnits

public ArrayList getCompatibleDataUnits()

Description copied from class: PamProcess

A list of data block class types which are compatible as parent data blocks for the PamProcess. This can return null, e.g. in the case of Acquisition process.

Overrides:

getCompatibleDataUnits in class PamProcess

Returns:

a list of PamDataBlock sub class types which can be used as parent data blocks for the process.