9fee0ec4ca
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7101 a1c6a512-1295-4272-9138-f99709370657
123 lines
No EOL
3.4 KiB
Java
123 lines
No EOL
3.4 KiB
Java
/*
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* $ProjectName$
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* $ProjectRevision$
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* -----------------------------------------------------------
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* $Id$
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* -----------------------------------------------------------
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*
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* $Author$
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*
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* Description:
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*
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* Copyright 2002-2003 Tor-Einar Jarnbjo
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* -----------------------------------------------------------
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*
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* Change History
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* -----------------------------------------------------------
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* $Log$
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* Revision 1.1 2005/07/11 15:42:36 hcl
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* Songdb java version, source. only 1.5 compatible
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*
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* Revision 1.2 2004/09/21 06:39:06 shred
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* Importe reorganisiert, damit Eclipse Ruhe gibt. ;-)
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*
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* Revision 1.1.1.1 2004/04/04 22:09:12 shred
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* First Import
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*
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* Revision 1.2 2003/03/16 01:11:12 jarnbjo
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* no message
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*
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*
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*/
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package de.jarnbjo.vorbis;
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import java.io.IOException;
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import de.jarnbjo.util.io.BitInputStream;
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class Residue2 extends Residue {
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private double[][] decodedVectors;
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private Residue2() {
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}
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protected Residue2(BitInputStream source, SetupHeader header) throws VorbisFormatException, IOException {
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super(source, header);
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}
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protected int getType() {
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return 2;
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}
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protected void decodeResidue(VorbisStream vorbis, BitInputStream source, Mode mode, int ch, boolean[] doNotDecodeFlags, float[][] vectors) throws VorbisFormatException, IOException {
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Look look=getLook(vorbis, mode);
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CodeBook codeBook=vorbis.getSetupHeader().getCodeBooks()[getClassBook()];
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int classvalsPerCodeword=codeBook.getDimensions();
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int nToRead=getEnd()-getBegin();
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int partitionsToRead=nToRead/getPartitionSize(); // partvals
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int samplesPerPartition=getPartitionSize();
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int partitionsPerWord=look.getPhraseBook().getDimensions();
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int partWords=(partitionsToRead+partitionsPerWord-1)/partitionsPerWord;
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int realCh=0;
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for(int i=0; i<doNotDecodeFlags.length; i++) {
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if(!doNotDecodeFlags[i]) {
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realCh++;
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}
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}
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float[][] realVectors=new float[realCh][];
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realCh=0;
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for(int i=0; i<doNotDecodeFlags.length; i++) {
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if(!doNotDecodeFlags[i]) {
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realVectors[realCh++]=vectors[i];
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}
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}
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int[][] partword=new int[partWords][];
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for(int s=0;s<look.getStages();s++){
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for(int i=0,l=0;i<partitionsToRead;l++){
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if(s==0){
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//int temp=look.getPhraseBook().readInt(source);
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int temp=source.getInt(look.getPhraseBook().getHuffmanRoot());
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if(temp==-1){
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throw new VorbisFormatException("");
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}
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partword[l]=look.getDecodeMap()[temp];
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if(partword[l]==null){
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throw new VorbisFormatException("");
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}
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}
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for(int k=0;k<partitionsPerWord && i<partitionsToRead;k++,i++){
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int offset=begin+i*samplesPerPartition;
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if((cascade[partword[l][k]]&(1<<s))!=0){
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CodeBook stagebook=vorbis.getSetupHeader().getCodeBooks()[look.getPartBooks()[partword[l][k]][s]];
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if(stagebook!=null){
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stagebook.readVvAdd(realVectors, source, offset, samplesPerPartition);
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}
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}
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}
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}
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}
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}
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public Object clone() {
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Residue2 clone=new Residue2();
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fill(clone);
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return clone;
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}
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protected double[][] getDecodedVectors() {
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return decodedVectors;
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}
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} |