metdetection.beat.fromfile

Class FromFileBeatTrackingModelState

java.lang.Object

metdetection.generic.MidiModelState

metdetection.beat.BeatTrackingModelState

metdetection.beat.fromfile.FromFileBeatTrackingModelState

All Implemented Interfaces:

java.lang.Comparable<FromFileBeatTrackingModelState>

public class FromFileBeatTrackingModelState
extends BeatTrackingModelState
implements java.lang.Comparable<FromFileBeatTrackingModelState>

A FromFileBeatTrackingModelState generates a list of Beats, the one directly generated from the underlying MIDI. This is generated from the TimeTracker passed in through the constructor.

Author:

Andrew McLeod - 3 Sept, 2015

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.List<Beat>	beats A List of the Beats generated from the given TimeTracker.
private int	mostRecentIndex The index of the current Beat in our Beats list.
private long	mostRecentTime The most recent time for which we have seen a note offset so far, initially 0.
private TimeTracker	timeTracker The TimeTracker for this song.

Fields inherited from class metdetection.beat.BeatTrackingModelState

voiceState

Constructor Summary

Constructors

Modifier	Constructor and Description
private	FromFileBeatTrackingModelState(FromFileBeatTrackingModelState state) Create a new state, a copy of the given one.
	FromFileBeatTrackingModelState(TimeTracker timeTracker) Creates a new object, generating the beats list directly from the given TimeTracker.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.TreeSet<FromFileBeatTrackingModelState>	close() Return a TreeSet of all of the possible MidiModelStates which we could tansition into when the input closes.
int	compareTo(FromFileBeatTrackingModelState o)
BeatTrackingModelState	deepCopy() Create a deep copy of this BeatTrackingModelState.
java.util.List<Beat>	getBeats() Gets the Beats which are contained by this state currently.
double	getScore() Get the score of this MidiModelState.
int	getTactiPerMeasure() Get the number of tacti which are present in each measure of the Beats of this state.
java.util.TreeSet<FromFileBeatTrackingModelState>	handleIncoming(java.util.List<MidiNote> notes) Return a TreeSet of all of the possible MidiModelStates which we could tansition into given the List of MidiNotes.

Methods inherited from class metdetection.beat.BeatTrackingModelState

getVoiceState, setVoiceState, toString

Methods inherited from class java.lang.Object

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

Field Detail

beats

private final java.util.List<Beat> beats

A List of the Beats generated from the given TimeTracker.

mostRecentIndex

private int mostRecentIndex

The index of the current Beat in our Beats list.

mostRecentTime

private long mostRecentTime

The most recent time for which we have seen a note offset so far, initially 0.

timeTracker

private TimeTracker timeTracker

The TimeTracker for this song.

Constructor Detail

FromFileBeatTrackingModelState

public FromFileBeatTrackingModelState(TimeTracker timeTracker)

Creates a new object, generating the beats list directly from the given TimeTracker.

Parameters:

timeTracker - The TimeTracker which will generate beats.

FromFileBeatTrackingModelState

private FromFileBeatTrackingModelState(FromFileBeatTrackingModelState state)

Create a new state, a copy of the given one.

Parameters:

state - The state whose copy we want.

Method Detail

getTactiPerMeasure

public int getTactiPerMeasure()

Description copied from class: BeatTrackingModelState

Get the number of tacti which are present in each measure of the Beats of this state. This is needed because for a FromFileBeatTrackingModelState, the measures are incremented correctly, but for any other BeatTrackingModelState, this is not the case.

Overrides:

getTactiPerMeasure in class BeatTrackingModelState

Returns:

The number of tacti per measure for a FromFileBeatTrackingModelState, or 0 for any other model.

getBeats

public java.util.List<Beat> getBeats()

Description copied from class: BeatTrackingModelState

Gets the Beats which are contained by this state currently.

Specified by:

getBeats in class BeatTrackingModelState

Returns:

A List of the Beats contained by this State.

getScore

public double getScore()

Description copied from class: MidiModelState

Get the score of this MidiModelState. In general, a higher score reflects that a State is more likely given our prior knowledge. The natural ordering of MidiModelStates is based on this score value.

Specified by:

getScore in class MidiModelState

Returns:

The score of this MidiModelState.

handleIncoming

public java.util.TreeSet<FromFileBeatTrackingModelState> handleIncoming(java.util.List<MidiNote> notes)

Description copied from class: MidiModelState

Return a TreeSet of all of the possible MidiModelStates which we could tansition into given the List of MidiNotes.

Specified by:

handleIncoming in class BeatTrackingModelState

Parameters:

notes - A List of the MidiNotes on which we need to transition.

Returns:

A TreeSet of MidiModelStates which we've transitioned into.

close

public java.util.TreeSet<FromFileBeatTrackingModelState> close()

Description copied from class: MidiModelState

Return a TreeSet of all of the possible MidiModelStates which we could tansition into when the input closes.

Specified by:

close in class BeatTrackingModelState

Returns:

A TreeSet of the MidiModelStates we've transitioned into.

deepCopy

public BeatTrackingModelState deepCopy()

Description copied from class: BeatTrackingModelState

Create a deep copy of this BeatTrackingModelState.

Specified by:

deepCopy in class BeatTrackingModelState

Returns:

A deep copy of this BeatTrackingModelState.

compareTo

public int compareTo(FromFileBeatTrackingModelState o)

Specified by:

compareTo in interface java.lang.Comparable<FromFileBeatTrackingModelState>