pxjpgff.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: pxjpgff.cpp,v 1.3.24.1 2004/07/09 01:53:35 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 <stdio.h>
#include <string.h>
#include <stdlib.h> // for atol
#include <ctype.h>  // for toupper

// From include
#include "hxcom.h"
#include "hxtypes.h"
#include "hxcomm.h"
#include "ihxpckts.h"
#include "hxfiles.h"
#include "hxformt.h"
#include "hxplugn.h"
#include "hxpends.h"
#include "hxasm.h"
#include "hxerror.h"
#include "hxver.h"
#include "hxxres.h"
#include "hxxrsmg.h"
#include "hxvsrc.h"  /*IHXFileViewSource*/
#include "ihxfgbuf.h"
#include "hxengin.h"

// From pncont
#include "chxpckts.h"
#include "hxstring.h"
#include "hxslist.h"

// From pnmisc
#include "hxurl.h"
#include "unkimp.h"
#include "baseobj.h"

// From pxcomlib
#include "pxcolor.h"
#include "parseurl.h"
#include "pxutil.h"

// From coreres
#include "pixres.h"

#include "jpegvsrc.h"
#include "pxjpgff.h"
#include "jpgfformat.ver"

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

#define BASE_JPEGSTREAM_VERSION    HX_ENCODE_PROD_VERSION(0, 0, 0, 0)
#define OPACITY_JPEGSTREAM_VERSION HX_ENCODE_PROD_VERSION(0, 1, 0, 0)

const UINT32 CJPEGFileFormat::m_ulContentVersion     = HX_ENCODE_PROD_VERSION(0, 0, 0, 0);
const UINT32 CJPEGFileFormat::m_ulStreamVersion      = BASE_JPEGSTREAM_VERSION;
const char * const CJPEGFileFormat::m_pszDescription       = "Helix JPEG File Format Plugin";
const char * const CJPEGFileFormat::m_pszCopyright         = HXVER_COPYRIGHT;
const char * const CJPEGFileFormat::m_pszMoreInfoURL       = HXVER_MOREINFO;
const char * const CJPEGFileFormat::m_ppszFileMimeTypes[]  = {"image/jpeg", NULL};
const char * const CJPEGFileFormat::m_ppszFileExtensions[] = {"jpg", "jpeg", "jpe", "jfif", NULL};
const char * const CJPEGFileFormat::m_ppszFileOpenNames[]  = {"JPEG Images (*.jpg)", NULL};
const char * const CJPEGFileFormat::m_pszStreamMimeType    = "application/vnd.rn-jpegstream";

#ifdef _WINDOWS
extern HINSTANCE g_hInstance;
#endif

CJPEGFileFormat::CJPEGFileFormat()
{
    m_lRefCount                 = 0;
    m_pContext                  = NULL;
    m_pFileObject               = NULL;
    m_pFormatResponse           = NULL;
    m_pClassFactory             = NULL;
    m_ulState                   = kStateConstructed;
    m_pRequest                  = NULL;
    m_pError                    = NULL;
    m_pFileStat                 = NULL;
    m_ulFileSize                = 0;
    m_pFileBuffer               = NULL;
    m_pPacketInfoList           = NULL;
    m_pPacketInfoListItr        = NULL;
    m_ulRestartInterval         = 0;
    m_ulImageWidth              = 0;
    m_ulImageHeight             = 0;
    m_ulBitRate                 = 0;
    m_ulPreroll                 = 0;
    m_ulMaxPacketSize           = 0;
    m_ulMinPacketSize           = 0;
    m_ulAvgPacketSize           = 0;
    m_ulTotalBytesToSend        = 0;
    m_ulDuration                = 0;
    m_lCurrentTimeStamp         = 0;
    m_ulDisplayTime             = 0;
    m_pURL                      = NULL;
    m_ulTarget                  = kTargetBrowser;
    m_ulURLType                 = kURLTypeNormal;
    m_ulSeekTime                = 0;
    m_bReliable                 = FALSE;
    m_pMediaOpacityStr          = NULL;
    m_pMediaChromaKeyStr        = NULL;
    m_pMediaChromaKeyTolStr     = NULL;
    m_pMediaChromaKeyOpacityStr = NULL;
    m_ulBytesRead               = 0;
};

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

STDMETHODIMP CJPEGFileFormat::QueryInterface(REFIID riid, void **ppvObj)
{
    if (IsEqualIID(riid, IID_IUnknown))
    {
        AddRef();
        *ppvObj = (IUnknown *) (IHXPlugin *) 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_IHXBackChannel))
    {
        AddRef();
        *ppvObj = (IHXBackChannel *) this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXASMSource))
    {
        AddRef();
        *ppvObj = (IHXASMSource *) this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXFileViewSource))
    {
	CJPEGViewSource* pVsrc = new CJPEGViewSource(m_pContext,
		(IUnknown*)(IHXPlugin*)this);
	if ( pVsrc == NULL )
	{
	    return HXR_FAIL;
	}
	return pVsrc->QueryInterface(riid, ppvObj);
    }
    else if (IsEqualIID(riid, IID_IHXThreadSafeMethods))
    {
	AddRef();
	*ppvObj = (IHXThreadSafeMethods*)this;
	return HXR_OK;
    }
    
    *ppvObj = NULL;

    return HXR_NOINTERFACE;
}

STDMETHODIMP_(UINT32) CJPEGFileFormat::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

STDMETHODIMP_(UINT32) CJPEGFileFormat::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;

    return 0;
}

STDMETHODIMP CJPEGFileFormat::GetPluginInfo(REF(BOOL)         rbLoadMultiple,
                                            REF(const char *) rpszDescription,
                                            REF(const char *) rpszCopyright,
                                            REF(const char *) rpszMoreInfoURL,
                                            REF(UINT32)       rulVersionNumber)
{
    rbLoadMultiple   = TRUE;
    rpszDescription  = m_pszDescription;
    rpszCopyright    = m_pszCopyright;
    rpszMoreInfoURL  = m_pszMoreInfoURL;
    rulVersionNumber = TARVER_ULONG32_VERSION;

    return HXR_OK;
}

STDMETHODIMP CJPEGFileFormat::InitPlugin(IUnknown *pContext)
{
    // Check for input error
    if (!pContext)
    {
        return HXR_FAIL;
    }

    // Save a copy of the calling context
    m_pContext = pContext;
    m_pContext->AddRef();

    // Get an interface to the common class factory
    HX_RELEASE(m_pClassFactory);
    HX_RESULT retVal = m_pContext->QueryInterface(IID_IHXCommonClassFactory, (void **) &m_pClassFactory);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(m_pContext);
        return retVal;
    }

    // Get the IHXErrorMessages interface - it's OK if TLC doesn't support it
    HX_RELEASE(m_pError);
    m_pContext->QueryInterface(IID_IHXErrorMessages, (void **) &m_pError);

    // Set the state
    m_ulState = kStatePluginInitialized;

    return HXR_OK;
}


STDMETHODIMP CJPEGFileFormat::GetFileFormatInfo(REF(const char **) rppszFileMimeTypes,
                                                REF(const char **) rppszFileExtensions,  
                                                REF(const char **) rppszFileOpenNames)
{
    rppszFileMimeTypes  = (const char **) m_ppszFileMimeTypes;
    rppszFileExtensions = (const char **) m_ppszFileExtensions;
    rppszFileOpenNames  = (const char **) m_ppszFileOpenNames;

    return HXR_OK;
}

STDMETHODIMP CJPEGFileFormat::InitFileFormat(IHXRequest        *pRequest, 
                                             IHXFormatResponse *pFormatResponse,
                                             IHXFileObject     *pFileObject)
{
    // Check for input error
    if (!pFormatResponse)
    {
        return HXR_FAIL;
    }
    if (!pRequest || !pFileObject)
    {
        return pFormatResponse->InitDone(HXR_FAIL);
    }

    // Save a copy of the format response
    m_pFormatResponse = pFormatResponse;
    m_pFormatResponse->AddRef();

     // Create an IHXValues object to hold the param name/value pairs
    IHXValues *pValues = NULL;
    HX_RESULT retVal = m_pClassFactory->CreateInstance(CLSID_IHXValues,
                                                       (void**) &pValues);
    if (FAILED(retVal))
    {
        return m_pFormatResponse->InitDone(retVal);
    }
    // Now add the following parameters to the IHXValues. These
    // parameters could have come as URL-encoded parameters or as
    // parameters in the request headers. These parameters will be
    // added as CString properties to the IHXValues.
    AddURLOrRequestParam(pRequest, "bitrate",     m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "preroll",     m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "duration",    m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "displaytime", m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "url",         m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "target",      m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "reliable",    m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "mediaOpacity",       m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "chromaKey",          m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "chromaKeyTolerance", m_pContext, pValues);
    AddURLOrRequestParam(pRequest, "chromaKeyOpacity",   m_pContext, pValues);
    // Set the bitrate
    retVal = ExtractValueUINT32(pValues, "bitrate", kDefaultBitRate, m_ulBitRate);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(pValues);
        ReportError(IDS_ERR_JPG_BADBITRATE);
        return m_pFormatResponse->InitDone(retVal);
    }
    // Set the preroll
    retVal = ExtractValueTime(pValues, "preroll", 0, m_ulPreroll);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(pValues);
        ReportError(IDS_ERR_JPG_BADPREROLL);
        return m_pFormatResponse->InitDone(retVal);
    }
    // Set the duration
    retVal = ExtractValueTime(pValues, "duration", kDefaultDuration, m_ulDuration);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(pValues);
        ReportError(IDS_ERR_JPG_BADDURATION);
        return m_pFormatResponse->InitDone(retVal);
    }
    // Set the display time
    retVal = ExtractValueTime(pValues, "displaytime", kDefaultDisplayTime, m_ulDisplayTime);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(pValues);
        ReportError(IDS_ERR_JPG_BADDISPLAYTIME);
        return m_pFormatResponse->InitDone(retVal);
    }
    // Set the clickthru url
    CHXString cTmp;
    retVal = ExtractValueString(pValues, "url", NULL, cTmp);
    if (retVal != HXR_OK)
    {
        HX_RELEASE(pValues);
        ReportError(IDS_ERR_JPG_BADURL);
        return m_pFormatResponse->InitDone(retVal);