AnxStreamMapper.h

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00001 //===========================================================================
00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh
00003 //
00004 //Copyright (C) 2003, 2004 Commonwealth Scientific and Industrial Research
00005 //   Organisation (CSIRO) Australia
00006 //
00007 //Redistribution and use in source and binary forms, with or without
00008 //modification, are permitted provided that the following conditions
00009 //are met:
00010 //
00011 //- Redistributions of source code must retain the above copyright
00012 //  notice, this list of conditions and the following disclaimer.
00013 //
00014 //- Redistributions in binary form must reproduce the above copyright
00015 //  notice, this list of conditions and the following disclaimer in the
00016 //  documentation and/or other materials provided with the distribution.
00017 //
00018 //- Neither the name of Zentaro Kavanagh nor the names of contributors 
00019 //  may be used to endorse or promote products derived from this software 
00020 //  without specific prior written permission.
00021 //
00022 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00023 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00024 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00025 //PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
00026 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00027 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00028 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00029 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00030 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00031 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00032 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00033 //===========================================================================
00034 
00035 #pragma once
00036 
00037 #include "OggStreamMapper.h"
00038 #include "CMMLStream.h"
00039 #include <libilliCore/iLE_Math.h>
00040 
00041 #include <fstream>
00042 using namespace std;
00043 class AnxStreamMapper
00044         :       public OggStreamMapper
00045 {
00046 public:
00047         //Constructors
00048         AnxStreamMapper(void);
00049         AnxStreamMapper(OggDemuxSourceFilter* inOwningFilter);
00050         virtual ~AnxStreamMapper(void);
00051 
00052         //Constants and Enumerations
00053         enum eAnxDemuxState {
00054                 SEEN_NOTHING,
00055                 SEEN_ANNODEX_BOS,
00056                 SEEN_AN_ANXDATA,
00057                 OGG_STATE,
00058                 INVALID_STATE = 1000
00059         };
00060 
00061         enum eAnxVersions {
00062                 ANX_VERSION_2_0 = 2 << 16,
00063                 ANX_VERSION_3_0 = 3 << 16
00064         };
00065 
00066         //Public Methods.
00067         virtual bool acceptOggPage(OggPage* inOggPage);
00068 
00069         virtual bool isReady();
00070         virtual bool toStartOfData();
00071 
00072 protected:
00073         //Helper Methods
00074         bool isAnnodexEOS(OggPage* inOggPage);
00075         bool isAnnodexBOS(OggPage* inOggPage);
00076         bool isAnxDataPage(OggPage* inOggPage, bool inAnxDataAreBOS);
00077         unsigned long getAnxVersion(OggPage* inOggPage);
00078         bool handleAnxVersion_2_0(OggPage* inOggPage);
00079         bool handleAnxVersion_3_0(OggPage* inOggPage);
00080 
00081         //Member Data
00082         vector<unsigned long> mSeenStreams;
00083         bool mSeenAnnodexBOS;
00084         bool mReadyForCodecs;
00085         bool mSeenCMML;
00086         unsigned long mAnnodexSerial;           //TODO::: May not need this anymore
00087         OggPacket* mAnnodexHeader;
00088         vector<OggPacket*> mAnxDataHeaders;
00089         unsigned long mAnxVersion;
00090         eAnxDemuxState mDemuxState;
00091 
00092         fstream debugLog;
00093         
00094 };

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