hxsrc.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: hxsrc.cpp,v 1.35.2.1 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 "hxtypes.h"
#include "hxcom.h"
#ifdef _WINDOWS
#include <windows.h>
#endif

#include "hlxclib/stdio.h"
#include "hlxclib/stdlib.h"
#include "prefdefs.h"
#include "plprefk.h"
#include "hxcomm.h"
#include "ihxpckts.h"
#include "hxfiles.h"
#include "hxengin.h"
#include "hxcore.h"
#include "hxprefs.h"
#include "hxpref.h"
#include "hxausvc.h"
#include "hxmon.h"
#include "hxclreg.h"
#include "hxgroup.h"
#include "hxsmbw.h"
#include "hxstrm.h"
#include "hxwin.h"


#include "hxcore.h"
#include "hxhyper.h"
#include "playhpnv.h"
#include "hxplugn.h"
#include "hxrendr.h"

#include "chxeven.h"
#include "chxelst.h"
#include "hxmap.h"
#include "hxrquest.h"
#include "hxmangle.h"
#include "hxtick.h"
#include "dbcs.h"

#include "hxstrutl.h"
#include "strminfo.h"
#include "timeval.h"
#include "statsmgr.h"
#include "hxbsrc.h"
#include "hxsrc.h"
#include "srcinfo.h"
#include "corshare.h"
#include "upgrdcol.h"
#include "hxrasyn.h"
#include "hxaudstr.h"
#include "hxplugn.h"
#include "hxrendr.h"
#include "errdbg.h"

// will be taken out once flags are defined in a separate file
#include "rmfftype.h"	
#include "hxplay.h"
#include "hxcleng.h"
#include "hxsrc.h"

#include "hxheap.h"
#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif

#if defined(HELIX_CONFIG_MIN_PCM_PUSHDOWN_BYTES)
// TurboPlay should never be turned on in low heap mode, but just in case ...
#define TURBO_AUDIO_PUSHDOWN 100
#else
#define TURBO_AUDIO_PUSHDOWN 2000
#endif

HXSource::HXSource() :
	  m_pPlayer (0)
	, m_lRefCount(0)
	, m_ulStreamIndex(0)
	, m_bInitialized (FALSE)
	, m_bIsPreBufferingDone(FALSE)
	, m_bClipTimeAdjusted(FALSE)
	, mLastError (HXR_OK)
	, m_ulPerfectPlayTime (0)
	, m_ulBufferedPlayTime(0)
        , m_ulStreamHeadersExpected(0)
	, m_bPerfectPlayEntireClip(FALSE)
	, m_bCannotBufferEntireClip(FALSE)
	, m_uNumStreams (0)
	, mFlags (0)
	, m_bPerfectPlayAllowed (FALSE)
	, mSaveAsAllowed (FALSE)
	, mLiveStream (FALSE)
	, m_bRestrictedLiveStream (FALSE)
	, m_bSourceEnd (FALSE)
	, m_bForcedSourceEnd(FALSE)
	, m_ulPreRollInMs (0)
	, m_ulPreRoll (0)
	, m_ulAvgBandwidth (0)
	, m_ulDuration (0)
	, m_bReceivedData (FALSE)
	, m_bReceivedHeader(FALSE)
	, m_bNonSeekable(FALSE)

	, m_nSeeking (0)
	, m_bPaused (FALSE)  
	, m_bFirstResume(TRUE)
	, m_bResumePending(FALSE)
	, m_bIsActive(FALSE)

	, m_uActiveStreams (0)

	, m_pszURL(NULL)
	, m_pURL(NULL)
	, m_bAltURL(TRUE)

	, m_ulStartTime (0)
	, m_ulEndTime (0)
	, m_ulDelay (0)
	, m_ulOriginalDelay (0)
	, m_ulPrefetchDelay (0)
	, m_llLastExpectedPacketTime(0)
	, m_ulRestrictedDuration(0)
	, m_bDelayed(FALSE)

	, m_ulSourceStartTime(0)
	, m_pPreferences (0)
	, m_pRegistry (0)
	, m_pScheduler (0)
#if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_REGISTRY)
	, m_pStats (0)
	, m_pStatsManager(NULL)
#endif /* HELIX_FEATURE_STATS && HELIX_FEATURE_REGISTRY */
	, m_bLocked (FALSE)
	, m_pEngine (0)
	, m_bRebufferingRequired(FALSE)
	, m_bInitialBuffering(TRUE)
	, m_bPartOfNextGroup(FALSE)
	, m_bPartOfPrefetchGroup(FALSE)
	, m_pBufferManager(NULL)
	, m_pFileHeader(0)
	, m_bPerfectPlay(FALSE)
	, m_bBufferedPlay(FALSE)
	, m_ulLossHack(0)
	, m_ulNumFakeLostPackets(0)
	, m_ulLastBufferingCalcTime(0)
	, m_pSourceInfo(NULL)
	, m_pRequest(NULL)
	, m_pASMSource(NULL)
	, m_pBackChannel(NULL)
	, m_bDefaultAltURL(FALSE)
	, m_bCustomEndTime(FALSE)	
	, m_bCustomDuration(FALSE)
	, m_bIsPreBufferingStarted(FALSE)
	, m_ulOriginalDuration(0)
	, m_bReSetup(FALSE)
#if defined(HELIX_FEATURE_AUTOUPGRADE)
	, m_pUpgradeCollection(NULL)
#endif /* HELIX_FEATURE_AUTOUPGRADE */
	, m_bRTSPRuleFlagWorkAround(FALSE)
        , m_bContinueWithHeaders(FALSE)
	, m_bPrefetch(FALSE)
	, m_prefetchType(PrefetchUnknown)
	, m_ulPrefetchValue(0)
	, m_ulFirstPacketTime(0)
	, m_bIsMeta(FALSE)
	, m_bFastStart(FALSE)
	, m_serverTurboPlay(TURBO_PLAY_UNKNOWN)
	, m_ulMaxBandwidth(4000)	// 4000kbps
	, m_pAudioStreamList(NULL)
        , m_maxPossibleAccelRatio(4.0)	// I donno what's a good value?
        , m_ulTurboPushDown(TURBO_AUDIO_PUSHDOWN)
        , m_bSureStreamClip(FALSE)
        , m_ulTurboStartActiveTime(0)
	, m_srcEndCode(END_UNKNOWN)
	, m_pRecordControl(NULL)
	, m_bPlayFromRecordControl(FALSE)
        , m_pRedirectURL(NULL)
        , m_bRedirectPending(FALSE)
{
    mStreamInfoTable = new CHXMapLongToObj;
}

HXSource::~HXSource()
{
    // XXX moved this to the distuctor because we want to keep arround
    // the request until the renderers are close at which point we should
    // be released and deleted.
    HX_RELEASE(m_pRequest);
    HX_VECTOR_DELETE(m_pszURL);
    HX_DELETE(mStreamInfoTable);
}

void
HXSource::Stop()
{
    m_pSourceInfo = NULL;    

    HX_DELETE (m_pURL);
    HX_DELETE (m_pBufferManager);

    if ( FAILED(mLastError) )
    {
	HX_RELEASE(m_pRequest);
    }

#if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_REGISTRY)
    if (m_pStatsManager)
    {
	m_pStatsManager->DoCleanup();
	HX_RELEASE(m_pStatsManager);
    }        
    HX_DELETE(m_pStats);    
#endif /* HELIX_FEATURE_STATS && HELIX_FEATURE_REGISTRY */

    DeleteAllEvents(); 

    HX_RELEASE(m_pRegistry);
    HX_RELEASE(m_pPreferences);
    HX_RELEASE(m_pScheduler);
    HX_RELEASE(m_pEngine);
}    

HX_RESULT HXSource::DoCleanup(EndCode endCode)
{
    m_ulDuration = 0;    
    m_ulPreRollInMs = 0;
    m_ulPreRoll = 0;
    m_ulAvgBandwidth = 0;
    m_ulLastBufferingCalcTime = 0;

    m_ulMaxBandwidth = 0;
    m_serverTurboPlay = TURBO_PLAY_UNKNOWN;

    m_bAltURL = FALSE;    
    m_bPaused = FALSE;
    m_bFirstResume = TRUE;
    m_bIsActive = FALSE;
    m_bResumePending = FALSE;
    m_bIsPreBufferingStarted = FALSE;
    m_bIsPreBufferingDone = FALSE;    
    m_bClipTimeAdjusted = FALSE;    
    m_bInitialBuffering = TRUE;
    m_bRebufferingRequired = FALSE;    
    m_bReceivedData = FALSE;
    m_bReceivedHeader = FALSE;

    ReleaseAudioStreams(m_pAudioStreamList);
    HX_DELETE(m_pAudioStreamList);

    DeleteStreamTable();

    CHXSimpleList::Iterator lIter = m_HXStreamList.Begin();
    for (; lIter != m_HXStreamList.End(); ++lIter)
    {
	HXStream* pStream = (HXStream*) (*lIter);
	pStream->Release();
    }

    m_HXStreamList.RemoveAll();    

    HX_RELEASE(m_pFileHeader);    
    HX_RELEASE(m_pASMSource);
    HX_RELEASE(m_pBackChannel);
#if defined(HELIX_FEATURE_AUTOUPGRADE)
    HX_RELEASE(m_pUpgradeCollection);
#endif /* HELIX_FEATURE_AUTOUPGRADE */

    m_bForcedSourceEnd	= FALSE;
    m_bSourceEnd	= FALSE;

    HX_DELETE(m_pRedirectURL);
    m_bRedirectPending  = FALSE;

#if defined(HELIX_FEATURE_RECORDCONTROL)
    if(m_pRecordControl)
    {
	m_pRecordControl->Cleanup();
    }
#endif /* HELIX_FEATURE_RECORDCONTROL */
    HX_RELEASE(m_pRecordControl);

    return HXR_OK;
}

/////////////////////////////////////////////////////////////////////////
//	Method:
//		IUnknown::QueryInterface
//	Purpose:
//		Implement this to export the interfaces supported by your 
//		object.
//
STDMETHODIMP HXSource::QueryInterface(REFIID riid, void** ppvObj)
{
    QInterfaceList qiList[] =
        {
            { GET_IIDHANDLE(IID_IHXStreamSource), (IHXStreamSource*)this },
            { GET_IIDHANDLE(IID_IHXPendingStatus), (IHXPendingStatus*)this },
            { GET_IIDHANDLE(IID_IHXInfoLogger), (IHXInfoLogger*)this },
            { GET_IIDHANDLE(IID_IHXPrivateStreamSource), (IHXPrivateStreamSource*)this },
            { GET_IIDHANDLE(IID_IHXSourceBufferingStats), (IHXSourceBufferingStats*)this },
            { GET_IIDHANDLE(IID_IHXSourceBufferingStats2), (IHXSourceBufferingStats2*)this },
#if defined(HELIX_FEATURE_HYPER_NAVIGATE)
            { GET_IIDHANDLE(IID_IHXHyperNavigate), (IHXHyperNavigate*)this },
            { GET_IIDHANDLE(IID_IHXHyperNavigate2), (IHXHyperNavigate2*)this },
#endif /* defined(HELIX_FEATURE_HYPER_NAVIGATE) */
            { GET_IIDHANDLE(IID_IUnknown), (IUnknown*)(IHXStreamSource*)this },
        };
    
    HX_RESULT res = ::QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
    
    // if successful, return immediately...
    if (SUCCEEDED(res))
    {
        return res;
    }
    // ... otherwise proceed onward
    
    if (IsEqualIID(riid, IID_IHXBackChannel))
    {
	if (m_pBackChannel)
	{
	    AddRef();
	    *ppvObj = (IHXBackChannel*)this;
	    return HXR_OK;
	}
	else
	{
	    *ppvObj = NULL;
	    return HXR_NOINTERFACE;
	}
    }
    else if (IsEqualIID(riid, IID_IHXASMSource))
    {
	if (m_pASMSource)
	{
	    AddRef();
	    *ppvObj = (IHXASMSource*)this;
	    return HXR_OK;
	}
	else
	{
	    *ppvObj = NULL;
	    return HXR_NOINTERFACE;
	}
    }

#if defined(HELIX_FEATURE_AUTOUPGRADE)
    else if (IsEqualIID(riid, IID_IHXUpgradeCollection))
    {
	if (!m_pUpgradeCollection)
	{
	    m_pUpgradeCollection = new HXUpgradeCollection;
	    m_pUpgradeCollection->AddRef();
	}

	return m_pUpgradeCollection->QueryInterface(riid, ppvObj);
    }
#endif /* HELIX_FEATURE_AUTOUPGRADE */
    else if (m_pRequest &&
	m_pRequest->QueryInterface(riid, ppvObj) == HXR_OK)
    {
	return HXR_OK;
    }
    else if (m_pFileHeader &&
	m_pFileHeader->QueryInterface(riid, ppvObj) == HXR_OK)
    {
	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) HXSource::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

/////////////////////////////////////////////////////////////////////////
//	Method:
//		IUnknown::Release
//	Purpose:
//		Everyone usually implements this the same... feel free to use
//		this implementation.
//
STDMETHODIMP_(ULONG32) HXSource::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
	return m_lRefCount;
    }

    delete this;
    return 0;
}

// *** IHXStreamSource methods ***

/************************************************************************
 *	Method:
 *		IHXStreamSource::IsLive
 *	Purpose:
 *		Ask the source whether it is live
 *
 */
STDMETHODIMP_ (BOOL) HXSource::IsLive(void)
{
    return mLiveStream;
}

/************************************************************************
 *	Method:
 *	    IHXStreamSource::GetPlayer
 *	Purpose:
 *	    Get the interface to the player object of which the source is
 *	    a part of.
 *
 */
STDMETHODIMP HXSource::GetPlayer(IHXPlayer* &pPlayer)
{
    pPlayer = m_pPlayer;
    if (pPlayer)
    {
	pPlayer->AddRef();
    }

    return HXR_OK;
}

/************************************************************************
 *	Method:
 *	    IHXStreamSource::GetContext
 *	Purpose:
 *	    Get the interface to the context object of which the source is
 *	    a part of.
 *
 */
STDMETHODIMP HXSource::GetContext(IUnknown* &pContext)
{
    pContext = ((IUnknown*)(IHXClientEngine*) m_pEngine);
    if (pContext)
    {
	pContext->AddRef();
    }

    return HXR_OK;
}

/************************************************************************
 *	Method:
 *	    IHXStreamSource::GetURL
 *	Purpose:
 *	    Get the URL for this source. NOTE: The returned string is
 *	    assumed to be valid for the life of the IHXStreamSource from which it
 *	    was returned.
 *
 */
STDMETHODIMP_(const char*) HXSource::GetURL(void)
{
    const char* pURL = NULL;

    /* 
     * Make sure that the we have not been re-directed
     * to a new URL.
     */ 
    if (m_pRequest && 
	m_pRequest->GetURL(pURL) == HXR_OK &&
	pURL)
    {
	if (!m_pszURL ||
	    ::strcasecmp(pURL, m_pszURL) != 0)
	{
	    HX_VECTOR_DELETE(m_pszURL);
	    m_pszURL = new char[strlen(pURL) + 1];
	    strcpy(m_pszURL, pURL); /* Flawfinder: ignore */
	}
    }

    // append RAM mimeType as URL option to notify the
    // caller(i.e. ViewSource)
    if (m_bIsMeta)