net.sourceforge.jaad.aac.tools.IS Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of jcodec Show documentation

Pure Java implementation of video/audio codecs and formats

The newest version!

package net.sourceforge.jaad.aac.tools;

import net.sourceforge.jaad.aac.huffman.HCB;
import net.sourceforge.jaad.aac.syntax.CPE;
import net.sourceforge.jaad.aac.syntax.SyntaxConstants;
import net.sourceforge.jaad.aac.syntax.ICSInfo;
import net.sourceforge.jaad.aac.syntax.ICStream;

/**
 * This class is part of JAAD ( jaadec.sourceforge.net ) that is distributed
 * under the Public Domain license. Code changes provided by the JCodec project
 * are distributed under FreeBSD license.
 * 
 * Intensity stereo
 * @author in-somnia
 */
public final class IS implements SyntaxConstants, ISScaleTable, HCB {

	private IS() {
	}

	public static void process(CPE cpe, float[] specL, float[] specR) {
		final ICStream ics = cpe.getRightChannel();
		final ICSInfo info = ics.getInfo();
		final int[] offsets = info.getSWBOffsets();
		final int windowGroups = info.getWindowGroupCount();
		final int maxSFB = info.getMaxSFB();
		final int[] sfbCB = ics.getSfbCB();
		final int[] sectEnd = ics.getSectEnd();
		final float[] scaleFactors = ics.getScaleFactors();

		int w, i, j, c, end, off;
		int idx = 0, groupOff = 0;
		float scale;
		for(int g = 0; g