/*
* DspState.java
*
* This file is part of Tritonus: http://www.tritonus.org/
*/
/*
* Copyright (c) 2000 - 2001 by Matthias Pfisterer
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
|<--- this code is formatted to fit into 80 columns --->|
*/
package org.tritonus.lowlevel.vorbis;
import org.tritonus.lowlevel.ogg.Ogg;
import org.tritonus.lowlevel.ogg.Packet;
import org.tritonus.share.TDebug;
/** Wrapper for vorbis_dsp_state.
*/
public class DspState
{
static
{
Ogg.loadNativeLibrary();
if (TDebug.TraceVorbisNative)
{
setTrace(true);
}
}
/**
* Holds the pointer to vorbis_dsp_state
* for the native code.
* This must be long to be 64bit-clean.
*/
@SuppressWarnings("unused")
private long m_lNativeHandle;
public DspState()
{
if (TDebug.TraceVorbisNative) { TDebug.out("DspState.<init>(): begin"); }
int nReturn = malloc();
if (nReturn < 0)
{
throw new RuntimeException("malloc of vorbis_dsp_state failed");
}
if (TDebug.TraceVorbisNative) { TDebug.out("DspState.<init>(): end"); }
}
public void finalize()
{
// TODO: call free()
// call super.finalize() first or last?
// and introduce a flag if free() has already been called?
}
private native int malloc();
public native void free();
/** Initialize for encoding.
Calls vorbis_analysis_init().
*/
public native int initAnalysis(Info info);
/** Calls vorbis_analysis_headerout().
*/
public native int headerOut(
Comment comment,
Packet packet,
Packet commentPacket,
Packet codePacket);
/** Calls vorbis_analysis_buffer() and
vorbis_analysis_wrote().
*/
public native int write(float[][] values, int nValues);
/** Calls vorbis_analysis_blockout().
*/
public native int blockOut(Block block);
/** Calls vorbis_bitrate_flushpacket().
*/
public native int flushPacket(Packet packet);
/** Initialize for decoding.
Calls vorbis_synthesis_init().
*/
public native int initSynthesis(Info info);
/** Calls vorbis_synthesis_blockin().
*/
public native int blockIn(Block block);
/** Calls vorbis_synthesis_pcmout().
*/
public native int pcmOut(float[][] afPcm);
/** Calls vorbis_synthesis_read().
*/
public native int read(int nSamples);
/** Accesses sequence.
*/
public native long getSequence();
/** Calls vorbis_dsp_clear().
*/
public native void clear();
private static native void setTrace(boolean bTrace);
}
/*** DspState.java ***/