hxstrm.cpp
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上传日期:2013-07-19
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxstrm.cpp,v 1.8.20.1 2004/07/09 02:05:58 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 "hlxclib/stdio.h"
- #include "hxtypes.h"
- #include "hxresult.h"
- #include "hxcom.h"
- #ifdef _WINDOWS
- #include <windows.h>
- #endif
- #include "ihxpckts.h"
- #include "hxfiles.h"
- #include "hxengin.h"
- #include "hxcore.h"
- #include "hxasm.h"
- #include "hxgroup.h"
- #include "hxplay.h"
- #include "hxsmbw.h"
- #include "hxprefs.h"
- #include "hxslist.h"
- #include "hxstring.h"
- #include "chxpckts.h"
- #include "hxbsrc.h"
- #include "hxsrc.h"
- #include "hxsmstr.h"
- #include "hxstrm.h"
- #include "hxstrutl.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- HXStream::HXStream() :
- m_lRefCount (0)
- ,m_pSource (NULL)
- ,m_pHeader (NULL)
- ,m_pUnkRenderer(NULL)
- ,m_uStreamNumber(0)
- ,m_ulRegistryID(0)
- #if defined(HELIX_FEATURE_ASM)
- ,m_pASMStream(NULL)
- #endif /* HELIX_FEATURE_ASM */
- ,m_bPostSeekToBeSent(FALSE)
- {
- }
- HXStream::~HXStream()
- {
- if (m_pSource)
- {
- m_pSource->Release();
- }
- if (m_pHeader)
- {
- m_pHeader->Release();
- }
- if (m_pUnkRenderer)
- {
- m_pUnkRenderer->Release();
- }
- #if defined(HELIX_FEATURE_ASM)
- HX_RELEASE(m_pASMStream);
- #endif /* HELIX_FEATURE_ASM */
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::QueryInterface
- // Purpose:
- // Implement this to export the interfaces supported by your
- // object.
- //
- STDMETHODIMP HXStream::QueryInterface(REFIID riid, void** ppvObj)
- {
- QInterfaceList qiList[] =
- {
- { GET_IIDHANDLE(IID_IHXStream), (IHXStream*)this },
- { GET_IIDHANDLE(IID_IHXRegistryID), (IHXRegistryID*)this },
- { GET_IIDHANDLE(IID_IHXLayoutStream), (IHXLayoutStream*)this },
- { GET_IIDHANDLE(IID_IUnknown), (IUnknown*)(IHXStream*)this },
- };
-
- HX_RESULT res = ::QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
-
- // if it succeeded, return immediately...
- if (SUCCEEDED(res))
- {
- return res;
- }
- // ...otherwise proceed
-
- #if defined(HELIX_FEATURE_ASM)
- /* Let HXASMStream respond to ASM interface if it wants to. */
- if (m_pASMStream && (HXR_OK == m_pASMStream->QueryInterface(riid, ppvObj)))
- {
- return HXR_OK;
- }
- #endif /* HELIX_FEATURE_ASM */
- *ppvObj = NULL;
- return HXR_NOINTERFACE;
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::AddRef
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32) HXStream::AddRef()
- {
- return InterlockedIncrement(&m_lRefCount);
- }
- /////////////////////////////////////////////////////////////////////////
- // Method:
- // IUnknown::Release
- // Purpose:
- // Everyone usually implements this the same... feel free to use
- // this implementation.
- //
- STDMETHODIMP_(ULONG32) HXStream::Release()
- {
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
- delete this;
- return 0;
- }
- /*
- * IHXStream methods
- */
- /************************************************************************
- * Method:
- * IHXStream::GetSource
- * Purpose:
- * Get the interface to the source object of which the stream is
- * a part of.
- *
- */
- STDMETHODIMP HXStream::GetSource(IHXStreamSource* &pSource)
- {
- pSource = m_pSource;
- if (pSource)
- {
- pSource->AddRef();
- }
- return HXR_OK;
- }
- /************************************************************************
- * Method:
- * IHXStream::GetStreamNumber
- * Purpose:
- * Get the stream number for this stream relative to the source
- * object of which the stream is a part of.
- *
- */
- STDMETHODIMP_(UINT16) HXStream::GetStreamNumber(void)
- {
- HX_ASSERT(m_pHeader);
- return (UINT16)m_uStreamNumber;
- }
- /************************************************************************
- * Method:
- * IHXStream::GetStreamType
- * Purpose:
- * Get the MIME type for this stream. NOTE: The returned string is
- * assumed to be valid for the life of the IHXStream from which it
- * was returned.
- *
- */
- STDMETHODIMP_(const char*) HXStream::GetStreamType(void)
- {
- HX_ASSERT(m_pHeader);
- IHXBuffer* pMimeTypeBuffer = 0;
- m_pHeader->GetPropertyCString("MimeType",pMimeTypeBuffer);
- HX_ASSERT(pMimeTypeBuffer);
- const char* pMimeTypeString = (const char* )pMimeTypeBuffer->GetBuffer();
- pMimeTypeBuffer->Release();
- return pMimeTypeString;
- }
- /************************************************************************
- * Method:
- * IHXStream::GetHeader
- * Purpose:
- * Get the header for this stream.
- *
- */
- STDMETHODIMP_(IHXValues*) HXStream::GetHeader(void)
- {
- HX_ASSERT(m_pHeader);
- m_pHeader->AddRef();
- return m_pHeader;
- }
- /************************************************************************
- * Method:
- * IHXStream::ReportQualityOfService
- * Purpose:
- * Call this method to report to the playback context that the
- * quality of service for this stream has changed. The unQuality
- * should be on a scale of 0 to 100, where 100 is the best possible
- * quality for this stream. Although the transport engine can
- * determine lost packets and report these through the user
- * interface, only the renderer of this stream can determine the
- * "real" perceived damage associated with this loss.
- *
- * NOTE: The playback context may use this value to indicate loss
- * in quality to the user interface. When the effects of a lost
- * packet are eliminated the renderer should call this method with
- * a unQuality of 100.
- *
- */
- STDMETHODIMP HXStream::ReportQualityOfService(UINT8 unQuality)
- {
- return HXR_NOTIMPL;
- }
- /************************************************************************
- * Method:
- * IHXStream::ReportRebufferStatus
- * Purpose:
- * Call this method to report to the playback context that the
- * available data has dropped to a critically low level, and that
- * rebuffering should occur. The renderer should call back into this
- * interface as it receives additional data packets to indicate the
- * status of its rebuffering effort.
- *
- * NOTE: The values of unNeeded and unAvailable are used to indicate
- * the general status of the rebuffering effort. For example, if a
- * renderer has "run dry" and needs 5 data packets to play smoothly
- * again, it should call ReportRebufferStatus() with 5,0 then as
- * packet arrive it should call again with 5,1; 5,2... and eventually
- * 5,5.
- *
- */
- STDMETHODIMP HXStream::ReportRebufferStatus(UINT8 unNeeded, UINT8 unAvailable)
- {
- if (m_pSource && m_pHeader)
- {
- return m_pSource->ReportRebufferStatus(GetStreamNumber(),
- unNeeded, unAvailable);
- }
- return HXR_OK;
- }
- STDMETHODIMP
- HXStream::SetGranularity (ULONG32 ulGranularity)
- {
- if (m_pSource && m_pHeader)
- {
- return m_pSource->SetGranularity(GetStreamNumber(),ulGranularity);
- }
- return HXR_OK;
- }
- /************************************************************************
- * Method:
- * IHXStream::GetRendererCount
- * Purpose:
- * Returns the current number of renderer instances supported by
- * this stream instance.
- */
- STDMETHODIMP_(UINT16) HXStream::GetRendererCount()
- {
- // In RMA 1.0 there is only one renderer per stream.
- return 1;
- }
- /************************************************************************
- * Method:
- * IHXStream::GetRenderer
- * Purpose:
- * Returns the Nth renderer instance supported by this stream.
- */
- STDMETHODIMP HXStream::GetRenderer
- (
- UINT16 nIndex,
- REF(IUnknown*) pUnknown
- )
- {
- if (nIndex >= 1)
- {
- return HXR_INVALID_PARAMETER;
- }
- pUnknown = m_pUnkRenderer;
- if (pUnknown)
- {
- pUnknown->AddRef();
- return HXR_OK;
- }
- else
- {
- return HXR_FAIL;
- }
- }
- HX_RESULT HXStream::Init(HXPlayer* pPlayer, HXSource* pSource, IHXValues* pHeader,
- IUnknown* pUnkRenderer)
- {
- m_pSource = pSource;
- m_pHeader = pHeader;
- if (m_pSource)
- {
- m_pSource->AddRef();
- }
- if (m_pHeader)
- {
- m_pHeader->AddRef();
- ULONG32 uStreamNumber = 0;
- m_pHeader->GetPropertyULONG32("StreamNumber",uStreamNumber);
- m_uStreamNumber = (UINT16) uStreamNumber;
- }
- #if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_REGISTRY)
- UINT32 ulSourceID;
- char pStreamEntry[MAX_DISPLAY_NAME]; /* Flawfinder: ignore */
- IHXBuffer* pPropName;
- m_pSource->GetID(ulSourceID);
- m_pSource->m_pRegistry->GetPropName(ulSourceID, pPropName);
- SafeSprintf(pStreamEntry, MAX_DISPLAY_NAME, "%s.Stream%d", pPropName->GetBuffer(), m_uStreamNumber);
- m_ulRegistryID = m_pSource->m_pRegistry->GetId(pStreamEntry);
- HX_ASSERT(m_ulRegistryID);
- pPropName->Release();
- #endif /* HELIX_FEATURE_STATS && HELIX_FEATURE_REGISTRY */
- if (pUnkRenderer)
- {
- m_pUnkRenderer = pUnkRenderer;
- m_pUnkRenderer->AddRef();
- }
- #if defined(HELIX_FEATURE_ASM)
- m_pASMStream = new HXASMStream(this, m_pSource);
- if(m_pASMStream)
- {
- m_pASMStream->AddRef();
- }
- else
- {
- return HXR_OUTOFMEMORY;
- }
- #endif /* HELIX_FEATURE_ASM */
- return HXR_OK;
- }
- HX_RESULT
- HXStream::SetRenderer(IUnknown* pUnkRenderer)
- {
- if (pUnkRenderer && m_pUnkRenderer != pUnkRenderer)
- {
- HX_RELEASE(m_pUnkRenderer);
- m_pUnkRenderer = pUnkRenderer;
- m_pUnkRenderer->AddRef();
- }
- return HXR_OK;
- }
- /************************************************************************
- * Method:
- * IHXRegistryID::GetID
- * Purpose:
- * Get registry ID(hash_key) of the objects(player, source and stream)
- *
- */
- STDMETHODIMP
- HXStream::GetID(REF(UINT32) /*OUT*/ ulRegistryID)
- {
- ulRegistryID = m_ulRegistryID;
-
- return HXR_OK;
- }
- STDMETHODIMP
- HXStream::GetProperties(REF(IHXValues*) pProps)
- {
- HX_RESULT rc = HXR_OK;
- STREAM_INFO* pStreamInfo = NULL;
- if (!m_pSource || HXR_OK != m_pSource->GetStreamInfo(m_uStreamNumber, pStreamInfo))
- {
- rc = HXR_FAILED;
- goto cleanup;
- }
- pProps = pStreamInfo->m_pStreamProps;
- HX_ADDREF(pProps);
- cleanup:
- return rc;
- }
- STDMETHODIMP
- HXStream::SetProperties(IHXValues* pProps)
- {
- HX_RESULT rc = HXR_OK;
- UINT32 ulDelay = 0;
- UINT32 ulDuration = 0;
- STREAM_INFO* pStreamInfo = NULL;
- if (!m_pSource || HXR_OK != m_pSource->GetStreamInfo(m_uStreamNumber, pStreamInfo))
- {
- rc = HXR_FAILED;
- goto cleanup;
- }
- if (HXR_OK == pProps->GetPropertyULONG32("delay", ulDelay))
- {
- m_pSource->UpdateDelay(ulDelay);
- }
- if (HXR_OK == pProps->GetPropertyULONG32("duration", ulDuration))
- {
- m_pSource->UpdateDuration(ulDuration);
- }
- HX_RELEASE(pStreamInfo->m_pStreamProps);
- pStreamInfo->m_pStreamProps = pProps;
- HX_ADDREF(pStreamInfo->m_pStreamProps);
- cleanup:
- return rc;
- }
- HX_RESULT
- HXStream::ResetASMSource(IHXASMSource* pASMSource)
- {
- HX_RESULT hr = HXR_OK;
- #if defined(HELIX_FEATURE_ASM)
- if (!m_pASMStream)
- {
- hr = HXR_FAILED;
- goto cleanup;
- }
- hr = m_pASMStream->ResetASMSource(pASMSource);
- cleanup:
- #endif /* HELIX_FEATURE_ASM */
- return hr;
- }
- BOOL
- HXStream::IsTimeStampDelivery()
- {
- BOOL bTimeStampDelivered = FALSE;
- #if defined(HELIX_FEATURE_ASM)
- if (m_pASMStream)
- {
- bTimeStampDelivered = m_pASMStream->IsTimeStampDelivery();
- }
- #endif /* HELIX_FEATURE_ASM */
- return bTimeStampDelivered;
- }
- void
- HXStream::PostEndTimePacket(IHXPacket* pPacket, BOOL& bSentMe, BOOL& bEndMe)
- {
- bSentMe = TRUE;
- bEndMe = TRUE;
- #if defined(HELIX_FEATURE_ASM)
- if (!pPacket || !m_pASMStream)
- {
- goto cleanup;
- }
- m_pASMStream->PostEndTimePacket(pPacket, bSentMe, bEndMe);
- cleanup:
- #endif /* HELIX_FEATURE_ASM */
- return;
- }
-
- void
- HXStream::ResetASMRuleState(void)
- {
- #if defined(HELIX_FEATURE_ASM)
- if (m_pASMStream)
- {
- m_pASMStream->ResetASMRuleState();
- }
- #endif /* HELIX_FEATURE_ASM */
- return;
- }
- HXSource*
- HXStream::GetHXSource(void)
- {
- if (m_pSource)
- {
- m_pSource->AddRef();
- }
- return m_pSource;
- }
- BOOL
- HXStream::IsSureStream(void)
- {
- UINT32 ulThresholds = 0;
- #if defined(HELIX_FEATURE_ASM)
- if (m_pASMStream)
- {
- ulThresholds = m_pASMStream->GetNumThresholds();
- if (ulThresholds > 1)
- {
- return TRUE;
- }
- }
- #endif /* HELIX_FEATURE_ASM */
- return FALSE;
- }