Example usage for com.badlogic.gdx.audio.analysis KissFFT KissFFT

Introduction

In this page you can find the example usage for com.badlogic.gdx.audio.analysis KissFFT KissFFT.

Prototype

public KissFFT(int numSamples) 

Source Link

Document

Creates a new fft instance that can analyse numSamples samples.

Usage

From source file:mobi.shad.s3lib.audio.AudioAnalyzer.java

License:Apache License

public final void load(String fileName) {
    audioFileName = fileName;/* w  w w . j  a va 2s.c  om*/

    fft = new KissFFT(bufferSize);
    for (int i = 0; i < bufferSize; i++) {
        samples[i] = 0;
        spectrum[i] = 0;
        maxValues[i] = 0;
        topValues[i] = 0;
        top2Values[i] = 0;
        top3Values[i] = 0;
        barValues[i] = 0;
    }

    if (!fileName.equalsIgnoreCase("") && fileName.endsWith(".mp3")) {
        FileHandle fileHandle = S3File.getFileHandle(audioFileName);
        if (fileHandle.exists()) {
            try {
                FileHandle copyFileHeader = S3File.getFileHandle(audioFileName + "/tmp/" + fileHandle.name(),
                        false, true);
                fileHandle.copyTo(copyFileHeader);

                decoder = new Mpg123Decoder(copyFileHeader);
                S3Log.log(TAG,
                        "Play file: " + fileName + " length: " + decoder.getLength() + " position: "
                                + decoder.getPosition() + " rate: " + decoder.getRate() + " channels: "
                                + decoder.getChannels());
                device = Gdx.audio.newAudioDevice(decoder.getRate(), decoder.getChannels() == 1 ? true : false);
                playerRunnable = new PlayerRunnable();
                playbackThread = new Thread(playerRunnable);
                playbackThread.setDaemon(true);
                canPlay = true;
            } catch (Exception ex) {
                S3Log.error(TAG, "Error load mp3 ...", ex);
            }
        } else {
            canPlay = false;
        }
    }
}

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