StreamHeaders.h

Go to the documentation of this file.
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 #pragma once
00032 
00033 #include "oggdllstuff.h"
00034 
00035 #include <libOOOgg/IOggPackSource.h>
00036 #include <libOOOgg/StampedOggPacket.h>
00037 //This holds the preliminary headers for a logical stream... then the output pins of the demux can give them to the codec at their leisure.
00038 //The demux will never present these headers again... seeking to the start of the file will seek to the start
00039 //of the data. ie the first page after the headers.
00040 
00041 //More than likely though, you'll have to parse them yourself in the output pin(demuxer) if you want to be able to connect up the codec filter to
00042 //something like the directshow audio renderer... it won't connect unless it knows the sample rate etc... and it
00043 //can't be streamed this data without connecting the filter.
00044 
00045 //If the codec needs them again... you have to sort it out from the output pin. The codec should remember !
00046 
00047 class OGG_DEMUX_API StreamHeaders
00048         :       public IOggPackSource
00049 {
00050 public:
00051         StreamHeaders(void);
00052         virtual ~StreamHeaders(void);
00053 
00054         enum eCodecType {
00055                 NONE = 0,
00056                 VORBIS = 1,
00057                 SPEEX = 2,
00058                 FLAC = 3,
00059                 THEORA = 4,
00060                 OGG_FLAC_1_0 = 5,
00061                 CMML = 20,
00062                 FFDSHOW_VIDEO = 100
00063         };
00064         //IOggPacketSource
00065         virtual StampedOggPacket* getPacket(unsigned long inPacketNo);
00066         virtual unsigned long numPackets();
00067         eCodecType mCodecType;
00068 
00069         //Other
00070         bool addPacket(StampedOggPacket* inPacket);
00071 protected:
00072         vector<StampedOggPacket*> mPacketList;
00073 };

Generated on Tue Feb 15 14:54:20 2005 for oggdsf by  doxygen 1.3.9