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VorbisDecoder.hpp

00001 /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title:       VorbisDecoder.hpp                                       *
00006  *                                                                      *
00007  *                                                                      *
00008  *                                                                      *
00009  * ITEC institute of the University of Klagenfurt (Austria)             *
00010  * http://www.itec.uni-klu.ac.at                                        *
00011  *                                                                      *
00012  *                                                                      *
00013  * For more information visit the ViTooKi homepage:                     *
00014  * http://ViTooKi.sourceforge.net                                       *
00015  * vitooki-user@lists.sourceforge.net                                   *
00016  * vitooki-devel@lists.sourceforge.net                                  *
00017  *                                                                      *
00018  * This file is part of ViTooKi, a free video toolkit.                  *
00019  * ViTooKi is free software; you can redistribute it and/or             *
00020  * modify it under the terms of the GNU General Public License          *
00021  * as published by the Free Software Foundation; either version 2       *
00022  * of the License, or (at your option) any later version.               *
00023  *                                                                      *
00024  * This program is distributed in the hope that it will be useful,      *
00025  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
00026  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the         *
00027  * GNU General Public License for more details.                         *
00028  *                                                                      *
00029  * You should have received a copy of the GNU General Public License    *
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00033  *                                                                      *
00034  ***********************************************************************/
00035 
00036 /***********************************************************************
00037  *                                                                      *
00038  *  REVISION HISTORY:                                                   *
00039  *                                                                      *
00040  *                                                                      *
00041  *                                                                      *
00042  ***********************************************************************/
00043 
00044 #ifndef _VORBIS_DECODER_HPP
00045 #define _VORBIS_DECODER_HPP
00046 
00047 #ifdef ENABLE_OGG
00048 
00049 #include "AudioAdaptor.hpp"
00050 #include "AudioESInfo.hpp"
00051 #include "Frame.hpp"
00052 #include "UncompressedAudioFrame.hpp"
00053 #include "container/OGGContainerFile.hpp"
00054 #include <vorbis/codec.h>
00055 #include <vorbis/vorbisfile.h>
00056 #include <vorbis/vorbisenc.h>
00057 
00058 class VorbisDecoder : public AudioAdaptor {
00059 public:
00060 
00061         /* Constructor
00062          * @param outStream defines th IO class for writing the output
00063          * @param autoFix if set to <code>false</code>, automatic insertion feature turned off
00064          *
00065          */
00066         VorbisDecoder(AudioESInfo* es);
00067         
00068         virtual ~VorbisDecoder();
00069         
00070         list < Frame * >adapt(Frame * frm);
00071         
00072         Adaptor* clone() { return new VorbisDecoder(es); };
00073 
00074         void initialize();
00075         
00076         list < Frame * >close() {
00077                 list < Frame * >tmp;
00078                 return tmp;
00079         };
00080 
00081 
00086         u32 getTranscodingCosts() const {
00087                 return es->getAvgBandwidth()/8;
00088         }
00089 
00090 private:
00091 protected:
00092 
00093 #define VORBIS_INPUT_BUFFER_SIZE        (5*8192)
00094 
00095   OGGStreamInfo *osi;
00096   vorbis_dsp_state *vd;
00097 
00098   unsigned char *inputBuffer;
00099         unsigned char   *guardPtr;
00100         int             Status;
00101         unsigned long   FrameCount;
00102 
00103         u32 numInFrames;
00104         bool initialized;
00105         u32 lastTS;
00106         AU * pAU;
00107 };
00108 
00109 #endif
00110 #endif