OggPaginator.h

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00001 //===========================================================================
00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh
00003 //
00004 //Redistribution and use in source and binary forms, with or without
00005 //modification, are permitted provided that the following conditions
00006 //are met:
00007 //
00008 //- Redistributions of source code must retain the above copyright
00009 //  notice, this list of conditions and the following disclaimer.
00010 //
00011 //- Redistributions in binary form must reproduce the above copyright
00012 //  notice, this list of conditions and the following disclaimer in the
00013 //  documentation and/or other materials provided with the distribution.
00014 //
00015 //- Neither the name of Zentaro Kavanagh nor the names of contributors 
00016 //  may be used to endorse or promote products derived from this software 
00017 //  without specific prior written permission.
00018 //
00019 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00020 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00021 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00022 //PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE ORGANISATION OR
00023 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00024 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
00025 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00026 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00027 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00028 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00029 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030 //===========================================================================
00031 
00032 #pragma once
00033 
00034 #undef MIN
00035 #define MIN(a,b) (((a)<(b))?(a):(b))
00036 
00037 #include <libOOOgg/IStampedOggPacketSink.h>
00038 #include <libOOOgg/OggPaginatorSettings.h>
00039 #include <libOOOgg/IOggCallback.h>
00040 #include <libOOOgg/StampedOggPacket.h>
00041 
00042 #include <fstream>
00043 using namespace std;
00044 
00045 class LIBOOOGG_API OggPaginator
00046         :       public IStampedOggPacketSink
00047 {
00048 public:
00049         //TODO::: Have a constructor that lets you set the numheaders.
00050         OggPaginator(void);
00051         virtual ~OggPaginator(void);
00052 
00054         bool setParameters(OggPaginatorSettings* inSettings);
00055 
00057         OggPaginatorSettings* parameters();
00058         
00060         virtual bool acceptStampedOggPacket(StampedOggPacket* inOggPacket);
00061 
00063         bool setPageCallback(IOggCallback* inPageCallback);
00064 
00066         bool finishStream();
00067 
00069         void setNumHeaders(unsigned long inNumHeaders);
00070 
00072         unsigned long numHeaders();
00073 
00074 protected:
00076         bool deliverCurrentPage();
00077 
00079         bool setChecksum();
00080 
00082         bool createFreshPage();
00083 
00085         bool addPacketToPage(StampedOggPacket* inOggPacket);
00086 
00088         unsigned long addAsMuchPacketAsPossible(StampedOggPacket* inOggPacket, unsigned long inStartAt, long inRemaining);
00089 
00091         bool addPartOfPacketToPage(StampedOggPacket* inOggPacket, unsigned long inStartFrom, unsigned long inLength);
00092         
00093 
00094         unsigned long mPacketCount;
00095         unsigned long mNumHeaders;
00096 
00097         unsigned long mCurrentPageSize;
00098         unsigned char mSegmentTable[255];
00099         unsigned char mSegmentTableSize;
00100         unsigned long mSequenceNo;
00101         bool mPendingPageHasData;
00102 
00103         IOggCallback* mPageCallback;
00104         OggPaginatorSettings* mSettings;
00105         OggPage* mPendingPage;
00106 
00107         unsigned char* mHeaderBuff;
00108         fstream debugLog;
00109 
00110         LOOG_INT64 mLastGranulePos;
00111 
00112 private:
00113         OggPaginator& operator=(const OggPaginator& other);  /* Don't assign me */
00114         OggPaginator(const OggPaginator& other); /* Don't copy me */
00115 };

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