smppayld.cpp
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上传日期:2013-07-19
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文件大小:5k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxtypes.h"
- #include "hxwintyp.h"
- #include "hxcom.h"
- #include "hxcomm.h"
- #include "hxassert.h"
- #include "hxslist.h"
- #include "hxcomm.h"
- #include "ihxpckts.h"
- #include "hxformt.h"
- #include "hxrendr.h"
- #include "hxformt.h"
- #include "hxengin.h"
- #include "smppayld.h"
- SimplePayloadFormat::SimplePayloadFormat()
- : m_lRefCount (0)
- , m_pStreamHeader (NULL)
- , m_pInputPackets (NULL)
- , m_bFlushed (FALSE)
- {
- m_pInputPackets = new CHXSimpleList();
- }
- SimplePayloadFormat::~SimplePayloadFormat()
- {
- HX_RELEASE(m_pStreamHeader);
- if (!m_pInputPackets->IsEmpty())
- {
- IHXPacket* pPacket = (IHXPacket*)m_pInputPackets->RemoveHead();
- HX_RELEASE(pPacket);
- }
- HX_DELETE(m_pInputPackets);
- }
- // *** IUnknown methods ***
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::QueryInterface
- // Purpose:
- // Implement this to export the interfaces supported by your
- // object.
- //
- STDMETHODIMP
- SimplePayloadFormat::QueryInterface(REFIID riid, void** ppvObj)
- {
- if (IsEqualIID(riid, IID_IUnknown))
- {
- AddRef();
- *ppvObj = this;
- return HXR_OK;
- }
- else if (IsEqualIID(riid, IID_IHXPayloadFormatObject))
- {
- AddRef();
- *ppvObj = (IHXPayloadFormatObject*)this;
- return HXR_OK;
- }
- *ppvObj = NULL;
- return HXR_NOINTERFACE;
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::AddRef
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- SimplePayloadFormat::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::Release
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32)
- SimplePayloadFormat::Release()
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
- delete this;
- return 0;
- }
- STDMETHODIMP
- SimplePayloadFormat::Init(IUnknown* pContext,
- BOOL bPacketize)
- {
- return HXR_OK;
- }
- STDMETHODIMP
- SimplePayloadFormat::Reset()
- {
- // Release all input packets we have stored
- if (!m_pInputPackets->IsEmpty())
- {
- IHXPacket* pPacket = (IHXPacket*)m_pInputPackets->RemoveHead();
- HX_RELEASE(pPacket);
- }
- m_bFlushed = FALSE;
- return HXR_OK;
- }
- STDMETHODIMP
- SimplePayloadFormat::SetStreamHeader(IHXValues* pHeader)
- {
- HX_ASSERT(pHeader);
- m_pStreamHeader = pHeader;
- m_pStreamHeader->AddRef();
- return HXR_OK;
- }
- STDMETHODIMP
- SimplePayloadFormat::GetStreamHeader(REF(IHXValues*) pHeader)
- {
- HX_ASSERT(m_pStreamHeader);
- pHeader = m_pStreamHeader;
- pHeader->AddRef();
- return HXR_OK;
- }
- STDMETHODIMP
- SimplePayloadFormat::SetPacket(IHXPacket* pPacket)
- {
- HX_ASSERT(pPacket);
- // Add this packet to our list of input packets
- pPacket->AddRef();
- m_pInputPackets->AddTail(pPacket);
- return HXR_OK;
- }
- STDMETHODIMP
- SimplePayloadFormat::GetPacket(REF(IHXPacket*) pPacket)
- {
- HX_RESULT hResult = HXR_OK;
- pPacket = NULL;
- if (m_pInputPackets->IsEmpty())
- {
- if (m_bFlushed)
- {
- // We have used up all available input
- hResult = HXR_STREAM_DONE;
- }
- else
- {
- // We don't have enough input
- // data to produce a packet
- hResult = HXR_INCOMPLETE;
- }
- }
- else
- {
- pPacket = (IHXPacket*)m_pInputPackets->RemoveHead();
- }
- return hResult;
- }
- STDMETHODIMP
- SimplePayloadFormat::Flush()
- {
- m_bFlushed = TRUE;
- return HXR_OK;
- }