Package com.sedmelluq.discord.lavaplayer.filter.equalizer

Class Equalizer

java.lang.Object

com.sedmelluq.discord.lavaplayer.filter.equalizer.EqualizerConfiguration

com.sedmelluq.discord.lavaplayer.filter.equalizer.Equalizer

All Implemented Interfaces:

AudioFilter, FloatPcmAudioFilter

public class Equalizer
extends EqualizerConfiguration
implements FloatPcmAudioFilter

An equalizer PCM filter. Applies the equalizer with configuration specified by band multipliers (either set externally or using EqualizerConfiguration.setGain(int, float)).

Field Summary

Fields

Modifier and Type	Field	Description
static int	BAND_COUNT	Number of bands in the equalizer.

Fields inherited from class com.sedmelluq.discord.lavaplayer.filter.equalizer.EqualizerConfiguration

bandMultipliers

Constructor Summary

Constructors

Constructor	Description
Equalizer(int channelCount, FloatPcmAudioFilter next)
Equalizer(int channelCount, FloatPcmAudioFilter next, float[] bandMultipliers)

Method Summary

Modifier and Type	Method	Description
void	close()	Free all resources.
void	flush()	Flush everything to output.
static boolean	isCompatible(AudioDataFormat format)
void	process(float[][] input, int offset, int length)
void	seekPerformed(long requestedTime, long providedTime)	Indicates that the next samples are not a continuation from the previous ones and gives the timecode for the next incoming sample.

Methods inherited from class com.sedmelluq.discord.lavaplayer.filter.equalizer.EqualizerConfiguration

getGain, setGain

Methods inherited from class java.lang.Object

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

Field Detail

BAND_COUNT

public static final int BAND_COUNT

Number of bands in the equalizer.

See Also:

Constant Field Values

Constructor Detail

Equalizer

public Equalizer(int channelCount,
                 FloatPcmAudioFilter next,
                 float[] bandMultipliers)

Parameters:

channelCount - Number of channels in the input.

next - The next filter in the chain.

bandMultipliers - The band multiplier values. Keeps using this array internally, so the values can be changed externally.

Equalizer

public Equalizer(int channelCount,
                 FloatPcmAudioFilter next)

Parameters:

channelCount - Number of channels in the input.

next - The next filter in the chain.

Method Detail

isCompatible

public static boolean isCompatible(AudioDataFormat format)

Parameters:

format - Audio output format.

Returns:

true if the output format is compatible for the equalizer (based on sample rate).

process

public void process(float[][] input,
                    int offset,
                    int length)
             throws java.lang.InterruptedException

Specified by:

process in interface FloatPcmAudioFilter

Parameters:

input - An array of samples for each channel

offset - Offset in the arrays to start at

length - Length of the target sequence in arrays

Throws:

java.lang.InterruptedException - When interrupted externally (or for seek/stop).

seekPerformed

public void seekPerformed(long requestedTime,
                          long providedTime)

Description copied from interface: AudioFilter

Indicates that the next samples are not a continuation from the previous ones and gives the timecode for the next incoming sample.

Specified by:

seekPerformed in interface AudioFilter

Parameters:

requestedTime - Timecode in milliseconds to which the seek was requested to

providedTime - Timecode in milliseconds to which the seek was actually performed to

flush

public void flush()
           throws java.lang.InterruptedException

Description copied from interface: AudioFilter

Flush everything to output.

Specified by:

flush in interface AudioFilter

Throws:

java.lang.InterruptedException - When interrupted externally (or for seek/stop).

close

public void close()

Description copied from interface: AudioFilter

Free all resources. No more input is expected.

Specified by:

close in interface AudioFilter