MpegBitstream.hxx

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/*
 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef __MpegBitstream__
#define __MpegBitstream__

#if USE_MAD != 1
#error USE_MAD was not set to 1 in your settings.cfg file, but you are including files that require this. Please fix your settings.cfg
#endif

#include <mad.h>
#include <cstdio>
#include "DataTypes.hxx"

namespace CLAM
{

namespace AudioCodecs
{
        class MpegBitstream
        {
                struct mad_stream  mBitstream;
                struct mad_frame   mCurrentFrame;
                struct mad_synth   mMpegSynth;
                mad_timer_t        mStreamTimer;

                unsigned char*     mInputBuffer;
                static const int   mInputBufferSize;
                unsigned long      mBufferFileOffset; 

                bool               mFatalError;
                FILE*              mpFile;

        public:
                MpegBitstream();
                ~MpegBitstream();

                void   Init();
                void   Init(FILE*);
                TTime  Finish();
                bool   EOS();
                bool   FatalError();
                bool   NextFrame();
                void   SynthesizeCurrent();
                bool   EnsureEnoughBufferData();
                unsigned long CurrentFrameFileOffset() const;
                struct mad_frame& CurrentFrame();
                struct mad_synth&  CurrentSynthesis();
                struct mad_stream& StreamState();
        };

        inline struct mad_stream& MpegBitstream::StreamState()
        {
                return mBitstream;
        }
}
                

}


#endif // MpegBitstream.hxx