com.github.hoary.javaav

Class AudioResampler

java.lang.Object

com.github.hoary.javaav.AudioResampler

public class AudioResampler
extends Object

The AudioResampler converts audio samples from one audio format to another.

Author:

Alex Andres

Constructor Summary

Constructors

Constructor and Description
AudioResampler()

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close this resampler and free allocated memory.
void	open(AudioFormat srcFormat, AudioFormat dstFormat, int frameSamples) Initializes the AudioResampler with specified input and output audio formats.
AudioFrame[]	resample(AudioFrame frame) Resample audio samples within the provided audio frame.

Methods inherited from class java.lang.Object

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

Constructor Detail

AudioResampler

public AudioResampler()

Method Detail

open

public void open(AudioFormat srcFormat,
        AudioFormat dstFormat,
        int frameSamples)
          throws JavaAVException

Initializes the AudioResampler with specified input and output audio formats. Invocations of resample(AudioFrame) will return audio frames with specified output audio format. The audio format of provided audio frames must be equal to the input audio format specified in this method.

Parameters:

srcFormat - the input audio format.

dstFormat - the output audio format.

frameSamples - amount of samples per output frame.

Throws:

JavaAVException - if resampler cannot be opened.

resample

public AudioFrame[] resample(AudioFrame frame)

Resample audio samples within the provided audio frame. The audio format of the input audio frame must be equal to the audio format previously specified with open(AudioFormat, AudioFormat, int). The resampled samples are buffered, if they do not fit completely in one output frame. Depending on output audio format more than one frame may be returned.

Parameters:

frame - the audio frame with samples to be resampled.

Returns:

one or more audio frames with resampled audio.

close

public void close()

Close this resampler and free allocated memory. Subsequent calls of resample(AudioFrame) will cause errors.