AbstractAudioDecodeInputPin.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 //Local Includes
00035 #include "abstractaudiodllstuff.h"
00036 #include "BasicSeekable.h"
00037 #include <fstream>
00038 using namespace std;
00039 //Forward Declarations
00040 class AbstractAudioDecodeOutputPin;
00041 class AbstractAudioDecodeFilter;
00042 
00043 //*************************************************************************************************
00044 class ABS_AUDIO_DEC_API AbstractAudioDecodeInputPin 
00045         //Parent Classes
00046         :       public CBaseInputPin
00047         ,       public BasicSeekable
00048 {
00049 public:
00050         //Friend Classes
00051         friend class AbstractAudioDecodeOutputPin;
00052 
00053         //Constants and Enumerations
00054         static const short SIZE_16_BITS = 2;
00055         static const signed short SINT_MAX = 32767;
00056         static const signed short SINT_MIN = -32768;
00057 
00058         //COM Setup
00059         DECLARE_IUNKNOWN
00060         STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv);
00061                 
00062         //Constructors  
00063         AbstractAudioDecodeInputPin(AbstractAudioDecodeFilter* inParentFilter, CCritSec* inFilterLock, AbstractAudioDecodeOutputPin* inOutputPin, CHAR* inObjectName, LPCWSTR inPinDisplayName, CMediaType* inAcceptMediaType);
00064         virtual ~AbstractAudioDecodeInputPin(void);
00065 
00066         //PURE VIRTUALS
00067         virtual long decodeData(unsigned char* inBuf, long inNumBytes) = 0;
00068         virtual bool ConstructCodec() = 0;
00069         virtual void DestroyCodec() = 0;
00070         
00071         virtual HRESULT BreakConnect();
00072         virtual HRESULT CompleteConnect (IPin *inReceivePin);
00073         STDMETHODIMP Receive(IMediaSample *pSample);
00074         virtual HRESULT CheckMediaType(const CMediaType *inMediaType);
00075         virtual HRESULT GetMediaType(int inPosition, CMediaType *outMediaType);
00076         virtual HRESULT SetMediaType(const CMediaType* inMediaType) = 0;
00077 
00078         virtual void ResetFrameCount();
00079         virtual void ResetTimeBases();
00080 
00081         virtual STDMETHODIMP EndOfStream(void);
00082         virtual STDMETHODIMP BeginFlush();
00083         virtual STDMETHODIMP EndFlush();
00084         virtual STDMETHODIMP NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
00085 
00086 
00087         //These really shouldn't be public !!
00088         //Chaining hackery
00089         REFERENCE_TIME mChainTimeBase;
00090         REFERENCE_TIME mPreviousEndTime;
00091 protected:
00092 
00093         virtual bool SetSampleParams(IMediaSample* outMediaSample, unsigned long inDataSize, REFERENCE_TIME* inStartTime, REFERENCE_TIME* inEndTime);
00094 
00095 
00096         HRESULT mHR;
00097         bool mBegun;
00098         AbstractAudioDecodeOutputPin* mOutputPin;
00099         __int64 mUptoFrame;
00100         __int64 mLastSeenStartGranPos;
00101         AbstractAudioDecodeFilter* mParentFilter;
00102         CMediaType* mAcceptableMediaType;
00103 
00104         //fstream debugLog;
00105         CCritSec* mStreamLock;
00106         //CCritSec* mFilterLock;
00107 
00108         unsigned long mFrameSize;
00109         unsigned long mNumChannels;
00110         unsigned long mSampleRate;
00111 
00112         REFERENCE_TIME mSeekTimeBase;
00113 
00114 
00115 
00116 
00117 };

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