OggRawAudioExtractorInputPin.h

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#pragma once

#include "oggrawaudioextractordllstuff.h"
#include "IOggDecoder.h"

class OggRawAudioExtractorFilter;

class OggRawAudioExtractorInputPin
        :       public CTransformInputPin
        ,       public IOggDecoder
{
public:
        DECLARE_IUNKNOWN
        STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void **ppv);

        OggRawAudioExtractorInputPin(OggRawAudioExtractorFilter* inParent, HRESULT* outHR);
        virtual ~OggRawAudioExtractorInputPin(void);

        virtual STDMETHODIMP GetAllocatorRequirements(ALLOCATOR_PROPERTIES *outRequestedProps);
        virtual HRESULT SetMediaType(const CMediaType* inMediaType);
        virtual HRESULT CheckMediaType(const CMediaType *inMediaType);

        

        //IOggDecoder Interface
        virtual LOOG_INT64 convertGranuleToTime(LOOG_INT64 inGranule);
        virtual LOOG_INT64 mustSeekBefore(LOOG_INT64 inGranule);
        virtual IOggDecoder::eAcceptHeaderResult showHeaderPacket(OggPacket* inCodecHeaderPacket);
        virtual string getCodecShortName();
        virtual string getCodecIdentString();


        sOggRawAudioFormatBlock getFormatBlock()                {return mFormatBlock;   }
protected:
        enum eOggRawAudioSetupState {
                VSS_SEEN_NOTHING,
                VSS_SEEN_BOS,
                VSS_SEEN_COMMENT,
                VSS_ALL_HEADERS_SEEN,
                VSS_ERROR
        };

        eOggRawAudioSetupState mSetupState;
        bool handleHeaderPacket(OggPacket* inHeaderPack);

        sOggRawAudioFormatBlock mFormatBlock; 


        static const unsigned long OGG_RAW_AUDIO_IDENT_HEADER_SIZE = 28;
        static const unsigned long OGG_RAW_AUDIO_NUM_BUFFERS = 50;


        enum eRawAudioFormat {
                FMT_S8,
                FMT_U8,
                FMT_S16_LE,
                FMT_S16_BE,
                FMT_S24_LE,
                FMT_S24_BE,
                FMT_S32_LE,
                FMT_S32_BE,

                FMT_ULAW                =       0x10,
                FMT_ALAW,

                FMT_FLT32_LE    =       0x20,
                FMT_FLT32_BE,
                FMT_FLT64_LE,
                FMT_FLT64_BE,

                
        };


};

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