prefmgr.cpp
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:8k
- /* ***** 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 "hxcom.h"
- #include "hxresult.h"
- #include "hxstrutl.h"
- #include "hxgroup.h"
- #include "hxcore.h"
- #include "hxengin.h"
- #include "hxslist.h"
- #include "hxstring.h"
- #include "hxplay.h"
- #include "hxbsrc.h"
- #include "hxsrc.h"
- #include "prefmgr.h"
- #include "srcinfo.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- PrefetchManager::PrefetchManager(HXPlayer* pPlayer)
- : m_bSourceMapUpdated(FALSE)
- , m_uSourceCount(0)
- , m_pPlayer(NULL)
- , m_pInterruptState(NULL)
- , m_pSourceMap(NULL)
- {
- m_pPlayer = pPlayer;
- if (m_pPlayer)
- {
- m_pPlayer->AddRef();
- m_pPlayer->QueryInterface(IID_IHXInterruptState, (void**) &m_pInterruptState);
- }
- m_pSourceMap = new CHXMapLongToObj;
- }
- PrefetchManager::~PrefetchManager()
- {
- HX_ASSERT(m_pSourceMap->GetCount() == 0);
- HX_RELEASE(m_pPlayer);
- HX_RELEASE(m_pInterruptState);
-
- HX_DELETE(m_pSourceMap);
- }
- HX_RESULT
- PrefetchManager::AddSource(SourceInfo* pSourceInfo)
- {
- HX_RESULT hr = HXR_OK;
- if (pSourceInfo)
- {
- HX_ASSERT(pSourceInfo->m_bPrefetch);
- (*m_pSourceMap)[m_uSourceCount] = pSourceInfo;
- m_uSourceCount = m_pSourceMap->GetCount();
- m_bSourceMapUpdated = TRUE;
- }
- return hr;
- }
- UINT16
- PrefetchManager::GetNumSources(void)
- {
- return m_uSourceCount;
- }
- HX_RESULT
- PrefetchManager::GetSource(UINT16 uSourceIndex, SourceInfo*& pSourceInfo)
- {
- HX_RESULT hr = HXR_OK;
-
- pSourceInfo = NULL;
- if (!m_pSourceMap->Lookup(uSourceIndex, (void*&)pSourceInfo))
- {
- hr = HXR_UNEXPECTED;
- goto cleanup;
- }
-
- cleanup:
-
- return hr;
- }
- BOOL
- PrefetchManager::Lookup(IHXValues* pValues, SourceInfo*& pSourceInfo)
- {
- HX_RESULT hr = HXR_OK;
- BOOL bFound = FALSE;
- char szUrl[] = "url";
- char szSrc[] = "src";
- char szStart[] = "Start";
- char szDelay[] = "Delay";
- const char* pszURL = NULL;
- UINT32 ulStart = 0;
- UINT32 ulDelay = 0;
- SourceInfo* pSrcInfo = NULL;
- HXSource* pSource = NULL;
- IHXBuffer* pBuffer = NULL;
- CHXURL* pURL = NULL;
- CHXMapLongToObj::Iterator i;
- pSourceInfo = NULL;
- hr = pValues->GetPropertyCString(szUrl,pBuffer);
- /* temp - for now support both "src" & "url" */
- if (hr)
- {
- hr = pValues->GetPropertyCString(szSrc,pBuffer);
- }
- if (hr)
- {
- goto cleanup;
- }
- pszURL = (const char*)pBuffer->GetBuffer();
- if (!pszURL || !*pszURL)
- {
- goto cleanup;
- }
- pURL = new CHXURL(pszURL); //parse the url
- pszURL = pURL->GetURL();
- pValues->GetPropertyULONG32(szStart, ulStart);
- pValues->GetPropertyULONG32(szDelay, ulDelay);
- i = m_pSourceMap->Begin();
- for (; i != m_pSourceMap->End(); ++i)
- {
- pSrcInfo = (SourceInfo*)(*i);
- pSource = pSrcInfo->m_pSource;
- if (pSource &&
- strcasecmp(pSource->GetURL(), pszURL) == 0 &&
- pSource->GetStartTime() == ulStart &&
- // XXX HP let's give 100ms windows to take care
- // of the current play time gap between SMIL renderer
- // and the core
- pSource->GetDelay() <= (ulDelay + 100))
- {
- pSourceInfo = pSrcInfo;
- bFound = TRUE;
- break;
- }
- }
- cleanup:
- HX_DELETE(pURL);
- HX_RELEASE(pBuffer);
- return bFound;
- }
- BOOL
- PrefetchManager::Lookup(HXSource* pSource, SourceInfo*& pSourceInfo)
- {
- BOOL bResult = FALSE;
- pSourceInfo = NULL;
- CHXMapLongToObj::Iterator i = m_pSourceMap->Begin();
- for (; i != m_pSourceMap->End(); ++i)
- {
- SourceInfo* pSrcInfo = (SourceInfo*) (*i);
- if (pSrcInfo->m_pSource == pSource)
- {
- pSourceInfo = pSrcInfo;
- bResult = TRUE;
- break;
- }
- }
- return bResult;
- }
- HX_RESULT
- PrefetchManager::RemoveSource(SourceInfo* pSourceInfo)
- {
- HX_RESULT hr = HXR_OK;
- int j = 0;
- BOOL bRemoved = FALSE;
- CHXMapLongToObj* pNewSourceMap = NULL;
- SourceInfo* pSrcInfo = NULL;
-
- pNewSourceMap = new CHXMapLongToObj;
- CHXMapLongToObj::Iterator i = m_pSourceMap->Begin();
- for (; i != m_pSourceMap->End(); ++i,j++)
- {
- pSrcInfo = (SourceInfo*)(*i);
-
- if (pSrcInfo == pSourceInfo)
- {
- bRemoved = TRUE;
- m_bSourceMapUpdated = TRUE;
- }
- else if (bRemoved)
- {
- (*pNewSourceMap)[j - 1] = pSrcInfo;
- // track ID has to be consistent with the map ID
- pSrcInfo->m_uTrackID = j - 1;
- }
- else
- {
- (*pNewSourceMap)[j] = pSrcInfo;
- }
- }
-
- HX_DELETE(m_pSourceMap);
- m_pSourceMap = pNewSourceMap;
- m_uSourceCount = m_pSourceMap->GetCount();
- return hr;
- }
- HX_RESULT
- PrefetchManager::ProcessIdle(void)
- {
- HX_RESULT hr = HXR_OK;
- CHXMapLongToObj::Iterator i = m_pSourceMap->Begin();
- for (; i != m_pSourceMap->End(); ++i)
- {
- SourceInfo* pSourceInfo = (SourceInfo*)(*i);
- HXSource* pSource = pSourceInfo->m_pSource;
- if (!pSource || pSource->IsPrefetchDone())
- {
- continue;
- }
- if (pSourceInfo->m_bToBeResumed &&
- pSource->IsInitialized() &&
- !m_pInterruptState->AtInterruptTime() )
- {
- if (!pSourceInfo->m_bAreStreamsSetup)
- {
- hr = pSourceInfo->SetupStreams();
- //m_pPlayer->m_ulPresentationDuration = max(m_pPlayer->m_ulPresentationDuration,
- // pSourceInfo->GetActiveDuration());
- }
- if (pSource->CanBeResumed())
- {
- pSourceInfo->m_bToBeResumed = FALSE;
- pSourceInfo->Register();
- m_pPlayer->RegisterSourcesDone();
- hr = pSource->DoResume();
- }
- }
- else
- {
- hr = pSource->ProcessIdle();
- }
- if (m_bSourceMapUpdated)
- {
- m_bSourceMapUpdated = FALSE;
- break;
- }
- }
- return hr;
- }
- void
- PrefetchManager::Cleanup(void)
- {
- SourceInfo* pSourceInfo = NULL;
- CHXMapLongToObj::Iterator i = m_pSourceMap->Begin();
- for (; i != m_pSourceMap->End(); ++i)
- {
- pSourceInfo = (SourceInfo*) (*i);
- pSourceInfo->Remove();
- HX_DELETE(pSourceInfo);
- }
- m_pSourceMap->RemoveAll();
- return;
- }