net.sourceforge.jaad.aac

Class SampleBuffer

java.lang.Object

net.sourceforge.jaad.aac.SampleBuffer

public class SampleBuffer
extends java.lang.Object

The SampleBuffer holds the decoded AAC frame. It contains the raw PCM data and its format.

Constructor Summary

Constructors

Constructor and Description
SampleBuffer()

Method Summary

Methods

Modifier and Type	Method and Description
double	getBitrate() Returns the bitrate of the decoded PCM data.
int	getBitsPerSample() Returns the number of bits per sample.
int	getChannels() Returns the number of channels stored in the data buffer.
byte[]	getData() Returns the buffer's PCM data.
double	getEncodedBitrate() Returns the AAC bitrate of the current frame.
double	getLength() Returns the length of the current frame in seconds.
int	getSampleRate() Returns the data's sample rate.
boolean	isBigEndian() Indicates the endianness for the data.
void	setBigEndian(boolean bigEndian) Sets the endianness for the data.
void	setData(byte[] data, int sampleRate, int channels, int bitsPerSample, int bitsRead)

Methods inherited from class java.lang.Object

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

Constructor Detail

SampleBuffer

public SampleBuffer()

Method Detail

getData

public byte[] getData()

Returns the buffer's PCM data.

Returns:

the audio data

getSampleRate

public int getSampleRate()

Returns the data's sample rate.

Returns:

the sample rate

getChannels

public int getChannels()

Returns the number of channels stored in the data buffer.

Returns:

the number of channels

getBitsPerSample

public int getBitsPerSample()

Returns the number of bits per sample. Usually this is 16, meaning a sample is stored in two bytes.

Returns:

the number of bits per sample

getLength

public double getLength()

Returns the length of the current frame in seconds. length = samplesPerChannel / sampleRate

Returns:

the length in seconds

getBitrate

public double getBitrate()

Returns the bitrate of the decoded PCM data. bitrate = (samplesPerChannel * bitsPerSample) / length

Returns:

the bitrate

getEncodedBitrate

public double getEncodedBitrate()

Returns the AAC bitrate of the current frame.

Returns:

the AAC bitrate

isBigEndian

public boolean isBigEndian()

Indicates the endianness for the data.

Returns:

true if the data is in big endian, false if it is in little endian

setBigEndian

public void setBigEndian(boolean bigEndian)

Sets the endianness for the data.

Parameters:

bigEndian - if true the data will be in big endian, else in little endian

setData

public void setData(byte[] data,
           int sampleRate,
           int channels,
           int bitsPerSample,
           int bitsRead)