hxntsrc.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

    }

    delete this;
    return 0;
}

HX_RESULT
HXNetSource::Setup(const char*  host,
                    const char* resource,
                    UINT16      port,
                    BOOL        LossCorrection,
                    const CHXURL* pURL,
                    BOOL        bAltURL)
{
    HX_TRACE("HXNetSource::Setup");

    HX_RESULT       theErr = HXR_OK;
    IHXValues*      pValues = NULL;
    IHXValues*      pRequestHeaders = NULL;
    IHXBuffer*      pBuffer = NULL;
    IHXBuffer*      pPlayerCookies = NULL;

    if (!m_bBruteForceReconnected &&
        !m_bReSetup)
    {
        theErr = SetupRegistry();
        if (HXR_OK != theErr)
        {
            goto cleanup;
        }
    }

    if (!m_bReSetup)
    {
        m_ulOriginalDelay = m_ulDelay;
    }

    // Remember whether or not we ask for loss correction!
    m_bLossCorrection = LossCorrection;

    // delete protocol object if one exists
    HX_RELEASE (m_pProto);

    m_uProtocolType = pURL->GetProtocol();
    if (rtspProtocol == m_uProtocolType || helixSDPProtocol == m_uProtocolType)
    {
        m_bRTSPProtocol = TRUE;
        m_ulSendStatsMask = MAX_STATS_MASK;
        /* Perfect Play Always supported iin RTSP,
         * till we add some preference to disable it.
         */
        BOOL bSupported = TRUE;
        SetOption(HX_PERFECTPLAY_SUPPORTED, &bSupported);
    }

    if (helixSDPProtocol != m_uProtocolType)
    {
        //  get out immediately if we have bogus parameters
        if(!host || !*host)
        {
            theErr = HXR_INVALID_URL_HOST;
            goto cleanup;
        }

        if(!theErr && (!resource || !*resource))
        {
            theErr = HXR_INVALID_URL_PATH;
            goto cleanup;
        }

        if  (m_pHost != host)
        {
            HX_VECTOR_DELETE(m_pHost);
            m_pHost = new char[::strlen(host) + 1];
            if (!m_pHost)
            {
                theErr = HXR_OUTOFMEMORY;
                goto cleanup;
            }
            ::strcpy(m_pHost, host); /* Flawfinder: ignore */
        }

        if(m_pResource != resource)
        {
            HX_VECTOR_DELETE(m_pResource);
            m_pResource = new char[::strlen(resource) + 1];
            if (!m_pResource)
            {
                theErr = HXR_OUTOFMEMORY;
                goto cleanup;
            }
            ::strcpy(m_pResource, resource); /* Flawfinder: ignore */
        }
    }

    // save parameters for use with different protocols.
#if defined(HELIX_FEATURE_STATS) && defined(HELIX_FEATURE_REGISTRY)
    // save URL to the registry
    if (m_pStats)
    {
        m_pStats->m_pSourceName->SetStr((char*)pURL);
    }
#endif /* HELIX_FEATURE_STATS && HELIX_FEATURE_REGISTRY */

    if (m_pURL != pURL)
    {
        HX_DELETE(m_pURL);
        m_pURL = new CHXURL(*pURL);
        if (!m_pURL)
        {
            theErr = HXR_OUTOFMEMORY;
            goto cleanup;
        }

        HX_VECTOR_DELETE(m_pszURL);
        m_pszURL = new char[::strlen(m_pURL->GetURL()) + 1];
        if (!m_pszURL)
        {
            theErr = HXR_OUTOFMEMORY;
            goto cleanup;
        }
        ::strcpy(m_pszURL, m_pURL->GetURL()); /* Flawfinder: ignore */
    }

    m_uPort = port;

    HX_VECTOR_DELETE(m_pPath);

    pValues = m_pURL->GetProperties();

    if (pValues &&
        HXR_OK == pValues->GetPropertyBuffer(PROPERTY_PATH, pBuffer) && pBuffer)
    {
        StrAllocCopy(m_pPath, (char*)pBuffer->GetBuffer());
    }

    HX_RELEASE(pBuffer);
    HX_RELEASE(pValues);

    // set request
    m_bAltURL = bAltURL;
    SetRequest(m_pURL, bAltURL);

    if (!m_pCookies && HXR_OK != m_pEngine->QueryInterface(IID_IHXCookies, (void**)&m_pCookies))
    {
        m_pCookies = NULL;
    }

    if (!m_pCookies2 && HXR_OK != m_pEngine->QueryInterface(IID_IHXCookies2, (void**)&m_pCookies2))
    {
        m_pCookies2 = NULL;
    }

    if (m_pCookies || m_pCookies2)
    {
        if (HXR_OK == m_pRequest->GetRequestHeaders(pRequestHeaders) && pRequestHeaders)
        {
            HX_RESULT res = HXR_FAIL;
            if(m_pCookies2)
                res = m_pCookies2->GetCookies(m_pHost, m_pPath, pBuffer, pPlayerCookies);
            else if(m_pCookies)
                res = m_pCookies->GetCookies(m_pHost, m_pPath, pBuffer);

            if (HXR_OK == res && pBuffer)
            {
                pRequestHeaders->SetPropertyCString("Cookie", pBuffer);
                if(pPlayerCookies)
                {
                    pRequestHeaders->SetPropertyCString("PlayerCookie", pPlayerCookies);
                }
            }
            HX_RELEASE(pBuffer);
            HX_RELEASE(pPlayerCookies);
        }
    }
    HX_RELEASE(pRequestHeaders);

#if defined(HELIX_FEATURE_SMARTERNETWORK)
    if (!m_pPreferredTransportManager &&
        HXR_OK != m_pEngine->QueryInterface(IID_IHXPreferredTransportManager,
                                            (void**)&m_pPreferredTransportManager))
    {
        theErr = HXR_FAILED;
        goto cleanup;
    }
#endif /* HELIX_FEATURE_SMARTERNETWORK */

    // Read all relevant preferences...
    theErr = ReadPreferences();

    // either we will wait for the first source to negotiate the transport
    //        then connect the remaining sources
    // or we are initiating PAC(ProxyAutoConfig)
    if (HXR_WOULD_BLOCK == theErr)
    {
        theErr = HXR_OK;
    }
    else if (HXR_OK == theErr)
    {
        theErr = FinishSetup();
    }

cleanup:

    return theErr;
}

HX_RESULT
HXNetSource::FinishSetup()
{
    HX_RESULT   rc = HXR_OK;
    BOOL        bSDPInitiated = FALSE;
    CHXString   pString;

    // start off with the preferred protocol
    rc = CreateProtocol();
    if (HXR_OK != rc)
    {
        goto cleanup;
    }

    rc = InitializeProtocol();
    if (HXR_OK != rc)
    {
        goto cleanup;
    }

    if (helixSDPProtocol == m_uProtocolType)
    {
        bSDPInitiated = TRUE;

        CHXURL::decodeURL(m_pURL->GetEscapedURL(), pString);
            
        HX_VECTOR_DELETE(m_pResource);
        m_pResource = new char[pString.GetLength() - 9];
        ::strcpy(m_pResource, (const char*)pString + 10);
    }
                
    rc = m_pProto->setup(m_pHost,
                         m_pResource,
                         m_uPort,
                         m_bLossCorrection,
                         (HTTPCloakMode == m_CurrentTransport)?TRUE:FALSE,
                         bSDPInitiated,
                         m_uCurrCloakedPort);

    // Mask this error
    // Let the _ProcessIdle() determine whether ReportError() or
    // TransportSwitching for HXR_BAD_TRANSPORT
    if(rc == HXR_BLOCK_CANCELED || rc == HXR_BAD_TRANSPORT)
    {
        rc = HXR_OK;
    }

    if (HXR_OK != rc)
    {
        mLastError = rc;
        goto cleanup;
    }

    // create log info list
    m_pLogInfoList = new CHXSimpleList;
    m_ulLogInfoLength = 0;

    // start time of this source
    m_ulSourceStartTime = HX_GET_TICKCOUNT();

    if (m_pBufferCtl)
    {
	m_pBufferCtl->Close();
    }
    HX_RELEASE(m_pBufferCtl);
    HX_RELEASE(m_pWMBufferCtl);
    
#ifdef HELIX_FEATURE_FEEDBACK_BUFFER_CONTROL
    m_pBufferCtl = new HXFeedbackBufferControl();
#else
    m_pBufferCtl = new HXWatermarkBufferControl();
#endif /* HELIX_FEATURE_FEEDBACK_BUFFER_CONTROL */

    if (m_pBufferCtl)
    {
	m_pBufferCtl->AddRef();
	m_pBufferCtl->QueryInterface(IID_IHXWatermarkBufferControl,
				     (void**)&m_pWMBufferCtl);

	m_pBufferCtl->Init((IUnknown*)(IHXStreamSource*)this);

	if (m_pWMBufferCtl)
	{
	    m_pWMBufferCtl->SetSource(this);
	}
    }

cleanup:

    if (HXR_OK != rc)
    {
        HX_RELEASE(m_pProto);
    }

    return rc;
}

HX_RESULT
HXNetSource::DoSeek(ULONG32 seekTime)
{
    HX_TRACE("HXNetSource::DoSeek");

    BOOL bSeekInsideRecordControl = FALSE;

    if ((!m_pProto && m_state != NETSRC_RECONNECTPENDING) || 
        (mLiveStream && !m_bPlayFromRecordControl && m_bSourceEnd))
    {
        return HXR_OK;
    }

    // log seek action
    LogInformation("SEEK", NULL);

    if (seekTime >= m_ulDelay)
    {
        seekTime -= m_ulDelay;
        m_bDelayed = FALSE;
    }
    else
    {
        seekTime = 0;

        /* This source has not been even started yet...
         * Do not attempt to seek it if the start time = 0
         */
        if (m_bDelayed && m_ulStartTime == 0 && !m_bSourceEnd)
        {
            // will start pre-fetch again in TryResume()
            if (!m_bIsPreBufferingDone)
            {
                m_bIsPreBufferingStarted = FALSE;

                // will be registered again in DoResume() or TryResume()
                if (m_pSourceInfo)
                {
                    m_pSourceInfo->UnRegister();
                }
            }

            return HXR_OK;
        }

        m_bDelayed = TRUE;
    }

    /* Add any start time to seek time */
    seekTime    += m_ulStartTime;

    /* Are we seeking past the last expected packet time?
     * If so, don't bother... and mark this source as done
     */
    HX_ASSERT(m_llLastExpectedPacketTime <= MAX_UINT32);
    // XXX HP make sure the source has been initialized otherwise
    // m_llLastExpectedPacketTime could be 0 and we could falsely
    // mark the source ended
    if (m_bInitialized && !mLiveStream && seekTime >= m_llLastExpectedPacketTime)
    {
        if (m_pSourceInfo && m_pSourceInfo->m_bSeekToLastFrame)
        {
            seekTime = INT64_TO_ULONG32(m_llLastExpectedPacketTime);
        }
        else
        {
            m_bSourceEnd = TRUE;
            m_bForcedSourceEnd = TRUE;
            AdjustClipBandwidthStats(FALSE);

#if defined(HELIX_FEATURE_RECORDCONTROL)
            if (m_pRecordControl)
            {
                m_pRecordControl->Seek(seekTime);
            }
#endif /* HELIX_FEATURE_RECORDCONTROL*/
            goto cleanup;
        }
    }

    // workaround for b#42118 for older servers(<= RealServer8.0 Gold)
    // server sends no more streamdone when reaching the endtime if seek
    // is occurred after streamdone has been sent. fix has been made in the latest server
    if (m_bSourceEnd && m_bCustomEndTime && m_pProto && m_pProto->GetRDTFeatureLevel() < 2)
    {
        m_bRTSPRuleFlagWorkAround = TRUE;
    }

    if (mLiveStream)
    {
        seekTime += m_ulFirstPacketTime;
    }

#if defined(HELIX_FEATURE_RECORDCONTROL)
    if (m_pRecordControl && m_pRecordControl->Seek(seekTime) == HXR_OK &&
        m_bPlayFromRecordControl)
    {
        bSeekInsideRecordControl = TRUE;
    }
    else
#endif /* HELIX_FEATURE_RECORDCONTROL */
    {
        m_ulSeekPendingTime = seekTime;
        m_bSeekPending = TRUE;
        if(m_pProto)
            m_pProto->seek(seekTime, seekTime, FALSE);

        if (mLiveStream)
        {
            seekTime = 0;
        }

        m_bSourceEnd        = FALSE;
        m_bForcedSourceEnd  = FALSE;

        STREAM_INFO*    pStreamInfo = NULL;

        CHXMapLongToObj::Iterator lStreamIterator = mStreamInfoTable->Begin();
        for (; lStreamIterator != mStreamInfoTable->End(); ++lStreamIterator)
        {
            pStreamInfo = (STREAM_INFO*) (*lStreamIterator);
            pStreamInfo->ResetPreReconnectEventList();
        }
    }

    // initiating reconnect NOW ...
    if (NETSRC_RECONNECTPENDING == m_state)
    {
        m_state = NETSRC_RECONNECTFORCED;
        if (m_pReconnectCallback)
        {
            m_pReconnectCallback->CancelCallback();
        }
        StartReconnect();
    }

    m_uLastBuffering                = 0;
    m_bInitialBuffering             = TRUE;
    m_bIsPreBufferingStarted        = FALSE;
    m_bIsPreBufferingDone           = FALSE;
    m_pushDownStatus                = PUSHDOWN_NONE;

    if (m_pBufferCtl)
    {
	m_pBufferCtl->OnSeek();
    }

    // Buffer manager needs to know whether we seek inside the RecordControl