smlffpln.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: smlffpln.cpp,v 1.3.8.1 2004/07/09 01:57:20 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 ***** */

#define INITGUID

#include <string.h>
#include <ctype.h>
#include <time.h>

#include "smlffpln.ver"

#include "hxtypes.h"
#include "hxcom.h"
#include "hxcomm.h"
#include "ihxpckts.h"
#include "hxfiles.h"
#include "hxformt.h"
#include "hxengin.h"
#include "hxplugn.h"
#include "hxpends.h"
#include "hxasm.h"
#include "hxprefs.h"
#include "hxvsrc.h"  /*IHXFileViewSource*/
#include "chxfgbuf.h" /*CHXFragmentedBuffer */
#include "hxmon.h"
#include "hxerror.h"

#include "hxstack.h"
#include "hxslist.h"
#include "hxstring.h"
#include "chxpckts.h"
#include "hxurl.h"
#include "hxver.h"
#include "verutil.h"
#include "perplex.h"

#include "xmlreslt.h"
#include "smlpkt.h"
#include "smlffpln.h"
#if defined(HELIX_FEATURE_VIEWSOURCE)
#include "escsmil.h" /* CEscapeSMIL */
#include "shadvsrc.h" /* CShadowViewSource */
#endif /* #if defined(HELIX_FEATURE_VIEWSOURCE) */

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

#ifdef _AIX
#include "dllpath.h"
ENABLE_MULTILOAD_DLLACCESS_PATHS(Smlffplin);
#endif

//#define DUMPFILEFORMATOUTPUT 1

static const UINT32 FileChunkSize = 10000;	//XXXBAB adjust
static const UINT32 MaxPacketSize = 1000;

#define XML_BAD_ATTRIBUTE_NAME		"SMIL Parse Error: Error in attribute name"
#define XML_BAD_TAG_NAME		"SMIL Parse Error: Bad Tag Name"
#define XML_MISSING_ATTRIBUTE_VALUE	"SMIL Parse Error: Attribute value is missing"
#define XML_NO_CLOSE_QUOTE		"SMIL Parse Error: No closing quote"
#define XML_MISSING_SPACE		"SMIL Parse Error: Missing space"


/****************************************************************************
 * 
 *  Function:
 * 
 *	HXCreateInstance()
 * 
 *  Purpose:
 * 
 *	Function implemented by all plugin DLL's to create an instance of 
 *	any of the objects supported by the DLL. This method is similar to 
 *	Window's CoCreateInstance() in its purpose, except that it only 
 *	creates objects from this plugin DLL.
 *
 *	NOTE: Aggregation is never used. Therefore and outer unknown is
 *	not passed to this function, and you do not need to code for this
 *	situation.
 * 
 */
STDAPI ENTRYPOINT(HXCreateInstance)
(
    IUnknown**  /*OUT*/	ppIUnknown
)
{
    *ppIUnknown = (IUnknown*)(IHXPlugin*)new CSmilFileFormat();
    if (*ppIUnknown)
    {
	(*ppIUnknown)->AddRef();
	return HXR_OK;
    }
    return HXR_OUTOFMEMORY;
}

/****************************************************************************
 * 
 *  Function:
 * 
 *	CanUnload2()
 * 
 *  Purpose:
 * 
 *	Function implemented by all plugin DLL's if it returns HXR_OK 
 *	then the pluginhandler can unload the DLL
 *
 */
STDAPI ENTRYPOINT(CanUnload2)(void)
{
    return (CHXBaseCountingObject::ObjectsActive() > 0 ? HXR_FAIL : HXR_OK );
}


const char* const CSmilFileFormat::zm_pDescription    = "RealNetworks SMIL File Format Plugin";
const char* const CSmilFileFormat::zm_pCopyright      = HXVER_COPYRIGHT;
const char* const CSmilFileFormat::zm_pMoreInfoURL    = HXVER_MOREINFO;

const char* const CSmilFileFormat::zm_pFileMimeTypes[]  = {"application/smil", NULL};
// /NOTE: here's what's sent as stream mime types; if there is no default
// namespace, then the file is treated as a SMIL 1.0 document and sent to
// our old renderer.   If the default namespace is unrecognized, then we
// send "application/smil" and let the 2.0 or later SMIL renderer parse the
// namespace in the smil file data and, if it recognizes it (e.g., the SMIL
// renderer is a SMIL 3.0 renderer and the namespace is SMIL 3.0 but this
// file format is of the SMIL 2.0 timeframe), then it plays it.  If the
// renderer doesn't recognize the namespace, it tries to auto upgrade with
// the following as the AU mime-type request: "application/smil.[namespace]"
// and the AU server then looks for a component (maybe not even an RN one)
// that can handle this type of SMIL file.
const char* const CSmilFileFormat::zm_pStreamMimeTypes[]  = 	{
	// /The following are SMIL 1.0 stream mime types that will be handled
	// by SMIL 1.0-exclusive players (e.g., RealPlayer 8):
	"application/rma-driver", // /Beta-1, SMIL 1.0 stream
	"application/vnd.rn-rmadriver", // /SMIL 1.0 strm (no dflt namespace)
	// /The following is SMIL 1.0 Rec default namespace:
	// "http://www.w3.org/TR/REC-smil"
	"application/smil",
	// /The following is SMIL 2.0 Candidate Rec (i.e., pre SMIL 2.0 W3C Rec
	// status) default namespace:
	// "http://www.w3.org/2000/SMIL20/CR/Language"
	// The following is SMIL 2.0 Proposed Rec default namespace:
	// "http://www.w3.org/2001/SMIL20/PR/Language"
	// Both CR and PR use this stream mime type:
	"application/smil",
	// /The following is the SMIL 2.0 Recommendation namespace
	// "http://www.w3.org/2001/SMIL20/Language",
	"application/smil",
	// /We'll use this for any unrecognized SMIL file version (and note:
	// this is probably going to always be the same as the SMIL20 mime
	// type; the renderer will do all the work of deciding whether or not
	// to auto upgrade if it doesn't recognize the default namespace):
	"application/smil",
	NULL};
const char* const CSmilFileFormat::zm_pFileExtensions[] = {"smi", "smil", NULL};
const char* const CSmilFileFormat::zm_pFileOpenNames[]  = {"SMIL File Format (*.smi,*.smil)", NULL};

CSmilFileFormat::CSmilFileFormat()
    :	m_lRefCount(0)
    ,	m_pContext(0)
    ,	m_pFileObject(0)
    ,	m_pFFResponse(0)
    ,	m_bHeaderSent(FALSE)
    ,	m_bChannelInit(FALSE)
    ,	m_bSentFirstChannel(FALSE)
    ,	m_bSourceInit(FALSE)
    ,	m_ulCurrentTime(0)
    ,	m_state(Ready)
    ,	m_pRequest(0)
    ,	m_pCommonClassFactory(0)
    ,	m_ulPacketCount(0)
    ,	m_ulCurrentPacket(0)
    ,	m_ulStreamVersion(0)
    ,	m_ulContentVersion(0)
    ,	m_pCurrentPacketData(NULL)
    ,	m_fileState(InContent)
    ,	m_smilFileVersion(SMILFileVersionSmil10)
    ,	m_pArrayOfPackets(0)
    ,	m_bLogErrors(FALSE)
    ,	m_pStartOfFile(NULL)
{
};

CSmilFileFormat::~CSmilFileFormat()
{
    Close();
}


/************************************************************************
 *  Method:
 *    IHXPlugin::InitPlugin
 *  Purpose:
 *    Initializes the plugin for use. This interface must always be
 *    called before any other method is called. This is primarily needed 
 *    so that the plugin can have access to the context for creation of
 *    IHXBuffers and IMalloc.
 */
STDMETHODIMP CSmilFileFormat::InitPlugin(IUnknown* /*IN*/ pContext)
{
    m_pContext = pContext;
    m_pContext->AddRef();
    m_pContext->QueryInterface(IID_IHXCommonClassFactory,
    	(void**)&m_pCommonClassFactory);
    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IHXPlugin::GetPluginInfo
 *  Purpose:
 *    Returns the basic information about this plugin. Including:
 *
 *    bLoadMultiple	whether or not this plugin DLL can be loaded
 *			multiple times. All File Formats must set
 *			this value to TRUE.
 *    pDescription	which is used in about UIs (can be NULL)
 *    pCopyright	which is used in about UIs (can be NULL)
 *    pMoreInfoURL	which is used in about UIs (can be NULL)
 */
STDMETHODIMP CSmilFileFormat::GetPluginInfo
(
    REF(BOOL)	    /*OUT*/ bLoadMultiple,
    REF(const char*)/*OUT*/ pDescription,
    REF(const char*)/*OUT*/ pCopyright,
    REF(const char*)/*OUT*/ pMoreInfoURL,
    REF(ULONG32)    /*OUT*/ ulVersionNumber
)
{
    bLoadMultiple = TRUE;   // Must be true for file formats.

    pDescription    = (const char*) zm_pDescription;
    pCopyright	    = (const char*) zm_pCopyright;
    pMoreInfoURL    = (const char*) zm_pMoreInfoURL;
    ulVersionNumber = TARVER_ULONG32_VERSION;

    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IHXPlugin::GetObjFileFormatInfo
 *  Purpose:
 *    If this object is a file format object this method returns
 *    information vital to the instantiation of file format plugins.
 *    If this object is not a file format object, it should return
 *    HXR_UNEXPECTED.
 */
STDMETHODIMP CSmilFileFormat::GetFileFormatInfo
(
    REF(const char**) /*OUT*/ pFileMimeTypes,
    REF(const char**) /*OUT*/ pFileExtensions,
    REF(const char**) /*OUT*/ pFileOpenNames
)
{
    pFileMimeTypes  = (const char**) zm_pFileMimeTypes;
    pFileExtensions = (const char**) zm_pFileExtensions;
    pFileOpenNames  = (const char**) zm_pFileOpenNames;

    return HXR_OK;
}

// *** IUnknown methods ***

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::QueryInterface
//  Purpose:
//	Implement this to export the interfaces supported by your 
//	object.
//
STDMETHODIMP CSmilFileFormat::QueryInterface(REFIID riid, void** ppvObj)
{
    if (IsEqualIID(riid, IID_IUnknown))
    {
	AddRef();
	*ppvObj = this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXPlugin))
    {
	AddRef();
	*ppvObj = (IHXPlugin*)this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXFileFormatObject))
    {
	AddRef();
	*ppvObj = (IHXFileFormatObject*)this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXFileResponse))
    {
	AddRef();
	*ppvObj = (IHXFileResponse*)this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXPendingStatus))
    {
	AddRef();
	*ppvObj = (IHXPendingStatus*)this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXInterruptSafe))
    {
	AddRef();
	*ppvObj = (IHXInterruptSafe*)this;
	return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXThreadSafeMethods))
    {
	AddRef();
	*ppvObj = (IHXThreadSafeMethods*)this;
	return HXR_OK;
    }
#if defined(HELIX_FEATURE_VIEWSOURCE)
    else if ( IsEqualIID(riid, IID_IHXFileViewSource) )
    {
	CShadowViewSource* pVsrc = new CShadowViewSource(m_pContext, 
	    (IUnknown*)(IHXPlugin*)this);
	if ( pVsrc == NULL )
	{
	    return HXR_FAIL;
	}	
	return pVsrc->QueryInterface(riid, ppvObj);
    }
#endif /* #if defined(HELIX_FEATURE_VIEWSOURCE) */

    *ppvObj = NULL;
    return HXR_NOINTERFACE;
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::AddRef
//  Purpose:
//	Everyone usually implements this the same... feel free to use
//	this implementation.
//
STDMETHODIMP_(ULONG32) CSmilFileFormat::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

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

    delete this;
    return 0;
}

// *** IHXFileFormatObject methods ***

STDMETHODIMP CSmilFileFormat::InitFileFormat
(
    IHXRequest*	/*IN*/	pRequest, 
    IHXFormatResponse*	/*IN*/	pFormatResponse,
    IHXFileObject*	/*IN*/  pFileObject
)
{
    HX_RESULT ret = HXR_OK;

    m_pRequest    = pRequest;
    m_pFFResponse = pFormatResponse;
    m_pFileObject = pFileObject;

    m_pRequest->AddRef();
    m_pFFResponse->AddRef();
    m_pFileObject->AddRef();

    // set stream and content versions
    m_ulStreamVersion = HX_ENCODE_PROD_VERSION(STREAM_MAJOR_VER,
					       STREAM_MINOR_VER,
					       STREAM_RELEASE,
					       STREAM_BUILD);
    m_ulContentVersion = HX_ENCODE_PROD_VERSION(CONTENT_MAJOR_VER,
						CONTENT_MINOR_VER,
						CONTENT_RELEASE,
						CONTENT_BUILD);
    
    if ( m_pArrayOfPackets )
    {
	int s = m_pArrayOfPackets->GetSize();
	for ( int i = s; i > 0; --i )
	{
	    PacketData* pckt = (PacketData*)(*m_pArrayOfPackets)[i-1];
	    HX_RELEASE(pckt->pBuffer);
	    HX_DELETE(pckt);
	    (*m_pArrayOfPackets)[i-1] = NULL;