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MadMP3Decoder.hpp

00001  /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title:       MadMP3Decoder.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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00032  * MA  02111-1307, USA.                                                 *
00033  *                                                                      *
00034  ***********************************************************************/
00035 
00036  /***********************************************************************
00037  *                                                                      *
00038  *  REVISION HISTORY:                                                   *
00039  *                                                                      *
00040  *                                                                      *
00041  *                                                                      *
00042  ***********************************************************************/
00043 
00044 #ifndef _MadMP3Decoder_HPP
00045 #define _MadMP3Decoder_HPP
00046 
00047 #include <math.h> /* for pow() and log10() */
00048 #include <mad.h>
00049 
00050 #include "AudioAdaptor.hpp"
00051 #include "AudioESInfo.hpp"
00052 #include "IO.hpp"
00053 #include "io/DevNull.hpp"
00054 
00055 
00067 class MadMP3Decoder : public AudioAdaptor {
00068 public:
00069 
00070         /* Constructor
00071          * @param outStream defines th IO class for writing the output
00072          * @param autoFix if set to <code>false</code>, automatic insertion feature turned off
00073          *
00074          */
00075         MadMP3Decoder(AudioESInfo* es);
00076         
00077         virtual ~MadMP3Decoder();
00078         
00079         list < Frame * >adapt(Frame * frm);
00080         
00081         Adaptor* clone() { return new MadMP3Decoder(es); };
00082 
00083         void initialize();
00084         
00085         list < Frame * >close() {
00086                 list < Frame * >tmp;
00087                 return tmp;
00088         };
00089 
00090 
00095         u32 getTranscodingCosts() const {
00096                 return es->getAvgBandwidth()/8;
00097         }
00098 
00099 private:
00100 protected:
00101         static signed short MadFixedToSshort(mad_fixed_t Fixed);
00102         static void PrintFrameInfo(struct mad_header *Header);
00103 
00104 
00105 
00106 #define MAD_INPUT_BUFFER_SIZE   (5*8192)
00107 
00108         struct mad_stream       Stream;
00109         struct mad_frame        madFrame;
00110         struct mad_synth        Synth;
00111         mad_timer_t                     Timer;
00112         unsigned char           *inputBuffer;
00113         unsigned char   *guardPtr;
00114         int                                     Status;
00115         unsigned long           FrameCount;
00116 
00117         u32 numInFrames;
00118         bool initialized;
00119         u32 lastTS;
00120         AU * pAU;
00121 };
00122 
00123 #endif
00124