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# wavdest.h

    00001 /*
    00002  *      Copyright (C) 2003-2005 Gabest
    00003  *      http://www.gabest.org
    00004  *
    00005  *  This Program is free software; you can redistribute it and/or modify
    00006  *  it under the terms of the GNU General Public License as published by
    00007  *  the Free Software Foundation; either version 2, or (at your option)
    00008  *  any later version.
    00009  *
    00010  *  This Program is distributed in the hope that it will be useful,
    00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    00013  *  GNU General Public License for more details.
    00014  *
    00015  *  You should have received a copy of the GNU General Public License
    00016  *  along with GNU Make; see the file COPYING.  If not, write to
    00017  *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
    00018  *  http://www.gnu.org/copyleft/gpl.html
    00019  *
    00020  */
    00021
    00022 #pragma once
    00023
    00024 #include <atlbase.h>
    00025
    00026 class CWavDestOutputPin : public CTransformOutputPin
    00027 {
    00028 public:
    00029     CWavDestOutputPin(CTransformFilter* pFilter, HRESULT* phr);
    00030
    00031     STDMETHODIMP EnumMediaTypes(IEnumMediaTypes** ppEnum);
    00032     HRESULT CheckMediaType(const CMediaType* pmt);
    00033 };
    00034
    00035 [uuid("8685214E-4D32-4058-BE04-D01104F00B0C")]
    00036 class CWavDestFilter : public CTransformFilter
    00037 {
    00038 public:
    00039     CWavDestFilter(LPUNKNOWN pUnk, HRESULT* pHr);
    00040     ~CWavDestFilter();
    00041
    00042         DECLARE_IUNKNOWN;
    00043
    00044     HRESULT Transform(IMediaSample* pIn, IMediaSample* pOut);
    00045     HRESULT Receive(IMediaSample* pSample);
    00046
    00047     HRESULT CheckInputType(const CMediaType* mtIn);
    00048     HRESULT CheckTransform(const CMediaType*mtIn, const CMediaType* mtOut);
    00049     HRESULT GetMediaType(int iPosition, CMediaType* pMediaType);
    00050
    00051     HRESULT DecideBufferSize(IMemAllocator* pAlloc, ALLOCATOR_PROPERTIES* pProperties);
    00052
    00053     HRESULT StartStreaming();
    00054     HRESULT StopStreaming();
    00055
    00056 private:
    00057
    00058     HRESULT Copy(IMediaSample* pSource, IMediaSample* pDest) const;
    00059     HRESULT Transform(IMediaSample* pMediaSample);
    00060     HRESULT Transform(AM_MEDIA_TYPE* pType, const signed char ContrastLevel) const;
    00061
    00062     ULONG m_cbWavData;
    00063     ULONG m_cbHeader;
    00064 };