2342 lines
55 KiB
C++
2342 lines
55 KiB
C++
/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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confcall.cpp
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Abstract:
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This module contains implementation of CIPConfMSPCall.
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Author:
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Mu Han (muhan) 5-September-1998
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--*/
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#include "stdafx.h"
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#include "common.h"
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#include <confpdu.h>
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CIPConfMSPCall::CIPConfMSPCall()
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: m_fLocalInfoRetrieved(FALSE)
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{
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ZeroMemory(m_InfoItems, sizeof(m_InfoItems));
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}
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STDMETHODIMP CIPConfMSPCall::CreateStream(
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IN long lMediaType,
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IN TERMINAL_DIRECTION Direction,
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IN OUT ITStream ** ppStream
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)
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{
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// This MSP doesn't support creating new streams on the fly.
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return TAPI_E_NOTSUPPORTED;
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}
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STDMETHODIMP CIPConfMSPCall::RemoveStream(
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IN ITStream * pStream
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)
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{
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// This MSP doesn't support removing streams either.
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return TAPI_E_NOTSUPPORTED;
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}
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HRESULT CIPConfMSPCall::InitializeLocalParticipant()
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/*++
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Routine Description:
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This function uses the RTP filter to find out the local information that
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will be used in the call. The infomation is stored in a local participant
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object.
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Arguments:
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Return Value:
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HRESULT.
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--*/
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{
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m_fLocalInfoRetrieved = TRUE;
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// Create the RTP fitler.
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IRTCPStream *pIRTCPStream;
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HRESULT hr = CoCreateInstance(
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CLSID_RTPSourceFilter,
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NULL,
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CLSCTX_INPROC_SERVER,
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IID_IRTCPStream,
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(void **) &pIRTCPStream
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);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "can't create RTP filter for local info. %x", hr));
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return hr;
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}
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// Get the available local SDES info from the filter.
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char Buffer[MAX_PARTICIPANT_TYPED_INFO_LENGTH];
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DWORD dwLen = MAX_PARTICIPANT_TYPED_INFO_LENGTH;
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for (int i = 0; i < RTCP_SDES_LAST - 1; i ++)
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{
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if (Buffer == NULL)
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{
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pIRTCPStream->Release();
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return E_OUTOFMEMORY;
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}
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hr = pIRTCPStream->GetLocalSDESItem(
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RTCP_SDES_CNAME + i,
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(BYTE*)Buffer,
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&dwLen
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);
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if (SUCCEEDED(hr) && dwLen > 0)
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{
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if (dwLen > MAX_PARTICIPANT_TYPED_INFO_LENGTH)
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{
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dwLen = MAX_PARTICIPANT_TYPED_INFO_LENGTH;
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}
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// allocate memory to store the string.
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m_InfoItems[i] = (WCHAR *)malloc(dwLen * sizeof(WCHAR));
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if (m_InfoItems[i] == NULL)
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{
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LOG((MSP_ERROR, "out of mem for local info"));
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pIRTCPStream->Release();
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return E_OUTOFMEMORY;
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}
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// conver the char string to WCHAR string.
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if (!MultiByteToWideChar(
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GetACP(),
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0,
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Buffer,
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dwLen,
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m_InfoItems[i],
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dwLen
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))
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{
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LOG((MSP_ERROR, "coverting failed, error:%x", GetLastError()));
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free(m_InfoItems[i]);
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m_InfoItems[i] = NULL;
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pIRTCPStream->Release();
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return E_FAIL;
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}
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}
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}
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pIRTCPStream->Release();
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return S_OK;
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}
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HRESULT CIPConfMSPCall::Init(
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IN CMSPAddress * pMSPAddress,
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IN MSP_HANDLE htCall,
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IN DWORD dwReserved,
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IN DWORD dwMediaType
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)
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/*++
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Routine Description:
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This method is called when the call is first created. It sets
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up the streams based on the mediatype specified.
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Arguments:
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pMSPAddress - The pointer to the address object.
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htCall - The handle to the Call in TAPI's space.
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Used in sending events.
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dwReserved - Reserved.
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dwMediaType - The media type of this call.
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Return Value:
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HRESULT.
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--*/
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{
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LOG((MSP_TRACE,
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"IPConfMSP call %x initialize entered,"
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" pMSPAddress:%x, htCall %x, dwMediaType %x",
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this, pMSPAddress, htCall, dwMediaType
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));
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#ifdef DEBUG_REFCOUNT
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if (g_lStreamObjects != 0)
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{
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LOG((MSP_ERROR, "Number of Streams alive: %d", g_lStreamObjects));
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DebugBreak();
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}
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#endif
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// initialize the participant array so that the array is not NULL.
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if (!m_Participants.Grow())
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{
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LOG((MSP_ERROR, "out of mem for participant list"));
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return E_OUTOFMEMORY;
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}
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// Call the base class's init.
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HRESULT hr= CMSPCallMultiGraph::Init(
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pMSPAddress,
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htCall,
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dwReserved,
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dwMediaType
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);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "MSPCallMultiGraph init failed:%x", hr));
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return hr;
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}
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// create streams based on the media types.
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if (dwMediaType & TAPIMEDIATYPE_AUDIO)
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{
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ITStream * pStream;
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// create a stream object.
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hr = InternalCreateStream(TAPIMEDIATYPE_AUDIO, TD_RENDER, &pStream);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "create audio render stream failed:%x", hr));
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return hr;
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}
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// The stream is already in our array, we don't need this pointer.
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pStream->Release();
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// create a stream object.
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hr = InternalCreateStream(TAPIMEDIATYPE_AUDIO, TD_CAPTURE, &pStream);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "create audio capture stream failed:%x", hr));
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return hr;
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}
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// The stream is already in our array, we don't need this pointer.
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pStream->Release();
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}
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if (dwMediaType & TAPIMEDIATYPE_VIDEO)
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{
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ITStream * pStream;
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// create a stream object.
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hr = InternalCreateStream(TAPIMEDIATYPE_VIDEO, TD_RENDER, &pStream);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "create video render stream failed:%x", hr));
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return hr;
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}
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// The stream is already in our array, we don't need this pointer.
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pStream->Release();
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// create a stream object.
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hr = InternalCreateStream(TAPIMEDIATYPE_VIDEO, TD_CAPTURE, &pStream);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "create video capture stream failed:%x", hr));
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return hr;
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}
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// The stream is already in our array, we don't need this pointer.
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pStream->Release();
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}
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m_fShutDown = FALSE;
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return S_OK;
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}
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HRESULT CIPConfMSPCall::ShutDown()
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/*++
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Routine Description:
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Shutdown the call.
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Arguments:
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Return Value:
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HRESULT.
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--*/
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{
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InternalShutDown();
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// acquire the lock on call.
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m_lock.Lock();
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// release all the streams
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for (int i = m_Streams.GetSize() - 1; i >= 0; i --)
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{
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m_Streams[i]->Release();
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}
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m_Streams.RemoveAll();
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for (i = 0; i < RTCP_SDES_LAST - 1; i ++)
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{
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if (m_InfoItems[i])
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{
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free(m_InfoItems[i]);
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m_InfoItems[i] = NULL;
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}
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}
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m_lock.Unlock();
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return S_OK;
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}
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HRESULT CIPConfMSPCall::InternalShutDown()
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/*++
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Routine Description:
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First call the base class's shutdown and then release all the participant
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objects.
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Arguments:
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Return Value:
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HRESULT.
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--*/
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{
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if (InterlockedCompareExchange((long*)&m_fShutDown, TRUE, FALSE))
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{
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return S_OK;
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}
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LOG((MSP_TRACE, "ConfMSPCall.InternalShutdown, entered"));
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// acquire the lock on the call.
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m_lock.Lock();
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// Shutdown all the streams
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for (int i = m_Streams.GetSize() - 1; i >= 0; i --)
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{
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UnregisterWaitEvent(i);
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((CMSPStream*)m_Streams[i])->ShutDown();
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}
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m_ThreadPoolWaitBlocks.RemoveAll();
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m_lock.Unlock();
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// release all the participants
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m_ParticipantLock.Lock();
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for (i = 0; i < m_Participants.GetSize(); i ++)
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{
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m_Participants[i]->Release();
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}
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m_Participants.RemoveAll();
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m_ParticipantLock.Unlock();
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return S_OK;
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}
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template <class T>
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HRESULT CreateStreamHelper(
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IN T * pT,
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IN HANDLE hAddress,
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IN CIPConfMSPCall* pMSPCall,
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IN IMediaEvent * pGraph,
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IN DWORD dwMediaType,
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IN TERMINAL_DIRECTION Direction,
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OUT ITStream ** ppITStream
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)
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/*++
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Routine Description:
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Create a stream object and initialize it. This method is called internally
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to create a stream object of different class.
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Arguments:
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hAddress - the handle to the address object.
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pCall - the call object.
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pGraph - the filter graph for this stream.
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dwMediaType - the media type of the stream.
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Direction - the direction of the steam.
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ppITStream - the interface on this stream object.
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Return Value:
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HRESULT.
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--*/
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{
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CComObject<T> * pCOMMSPStream;
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HRESULT hr = CComObject<T>::CreateInstance(&pCOMMSPStream);
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if (NULL == pCOMMSPStream)
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{
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LOG((MSP_ERROR, "CreateMSPStream:could not create stream:%x", hr));
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return hr;
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}
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// get the interface pointer.
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hr = pCOMMSPStream->_InternalQueryInterface(
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IID_ITStream,
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(void **)ppITStream
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);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "CreateMSPStream:QueryInterface failed: %x", hr));
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delete pCOMMSPStream;
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return hr;
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}
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// Initialize the object.
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hr = pCOMMSPStream->Init(
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hAddress,
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pMSPCall,
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pGraph,
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dwMediaType,
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Direction
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);
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "CreateMSPStream:call init failed: %x", hr));
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(*ppITStream)->Release();
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return hr;
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}
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return S_OK;
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}
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HRESULT CIPConfMSPCall::CreateStreamObject(
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IN DWORD dwMediaType,
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IN TERMINAL_DIRECTION Direction,
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IN IMediaEvent * pGraph,
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IN ITStream ** ppStream
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)
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/*++
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Routine Description:
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Create a media stream object based on the mediatype and direction.
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Arguments:
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pMediaType - TAPI3 media type.
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Direction - direction of this stream.
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IMediaEvent - The filter graph used in this stream.
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ppStream - the return pointer of the stream interface
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Return Value:
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HRESULT.
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--*/
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{
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LOG((MSP_TRACE, "CreateStreamObject, entered"));
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HRESULT hr = S_OK;
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ITStream * pIMSPStream = NULL;
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// Create a stream object based on the media type.
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if (dwMediaType == TAPIMEDIATYPE_AUDIO)
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{
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if (Direction == TD_RENDER)
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{
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CStreamAudioRecv *pAudioRecv = NULL;
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hr = ::CreateStreamHelper(
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pAudioRecv,
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m_pMSPAddress,
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this,
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pGraph,
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TAPIMEDIATYPE_AUDIO,
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TD_RENDER,
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&pIMSPStream
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);
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LOG((MSP_TRACE, "create audio receive:%x, hr:%x", pIMSPStream,hr));
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}
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else if (Direction == TD_CAPTURE)
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{
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CStreamAudioSend *pAudioSend = NULL;
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hr = ::CreateStreamHelper(
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pAudioSend,
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m_pMSPAddress,
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this,
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pGraph,
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TAPIMEDIATYPE_AUDIO,
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TD_CAPTURE,
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&pIMSPStream
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);
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LOG((MSP_TRACE, "create audio send:%x, hr:%x", pIMSPStream,hr));
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}
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}
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else if (dwMediaType == TAPIMEDIATYPE_VIDEO)
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{
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if (Direction == TD_RENDER)
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{
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CStreamVideoRecv *pVideoRecv = NULL;
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hr = ::CreateStreamHelper(
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pVideoRecv,
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m_pMSPAddress,
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this,
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pGraph,
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TAPIMEDIATYPE_VIDEO,
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TD_RENDER,
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&pIMSPStream
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);
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LOG((MSP_TRACE, "create video Recv:%x, hr:%x", pIMSPStream,hr));
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}
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else if (Direction == TD_CAPTURE)
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{
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CStreamVideoSend *pVideoSend = NULL;
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hr = ::CreateStreamHelper(
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pVideoSend,
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m_pMSPAddress,
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this,
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pGraph,
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TAPIMEDIATYPE_VIDEO,
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TD_CAPTURE,
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&pIMSPStream
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);
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LOG((MSP_TRACE, "create video send:%x, hr:%x", pIMSPStream,hr));
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}
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}
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if (FAILED(hr))
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{
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LOG((MSP_ERROR, "create stream failed. %x", hr));
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return hr;
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}
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*ppStream = pIMSPStream;
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return S_OK;
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}
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|
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DWORD CIPConfMSPCall::FindInterfaceByName(IN WCHAR *pMachineName)
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/*++
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Routine Description:
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Given the machine name of the originator, find out which local interface
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can be used to reach that machine.
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Arguments:
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pMachineName - The machine name of the originator.
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Return Value:
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INADDR_NONE - nothing can be found.
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valid IP - succeeded.
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--*/
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{
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char buffer[MAXIPADDRLEN + 1];
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|
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if (WideCharToMultiByte(
|
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GetACP(),
|
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0,
|
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pMachineName,
|
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-1,
|
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buffer,
|
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MAXIPADDRLEN,
|
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NULL,
|
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NULL
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) == 0)
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{
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LOG((MSP_ERROR, "can't convert originator's address:%ws", pMachineName));
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return INADDR_NONE;
|
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}
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|
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DWORD dwAddr;
|
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if ((dwAddr = inet_addr(buffer)) != INADDR_NONE)
|
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{
|
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dwAddr = ntohl(dwAddr);
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LOG((MSP_INFO, "originator's IP:%x", dwAddr));
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return ((CIPConfMSP *)m_pMSPAddress)->FindLocalInterface(dwAddr);
|
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}
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|
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struct hostent * pHost;
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|
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// attempt to lookup hostname
|
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pHost = gethostbyname(buffer);
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|
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// validate pointer
|
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if (pHost == NULL)
|
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{
|
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LOG((MSP_ERROR, "can't resolve address:%s", buffer));
|
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return INADDR_NONE;
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}
|
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|
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// for each of the addresses returned, find the local interface.
|
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for (DWORD i = 0; TRUE; i ++)
|
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{
|
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if (pHost->h_addr_list[i] == NULL)
|
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{
|
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break;
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}
|
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|
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// retrieve host address from structure
|
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dwAddr = ntohl(*(unsigned long *)pHost->h_addr_list[i]);
|
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|
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LOG((MSP_INFO, "originator's IP:%x", dwAddr));
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|
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DWORD dwInterface =
|
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((CIPConfMSP *)m_pMSPAddress)->FindLocalInterface(dwAddr);
|
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|
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if (dwInterface != INADDR_NONE)
|
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{
|
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return dwInterface;
|
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}
|
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}
|
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|
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return INADDR_NONE;
|
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}
|
|
|
|
HRESULT CIPConfMSPCall::CheckOrigin(
|
|
IN ITSdp * pITSdp,
|
|
OUT BOOL * pFlag,
|
|
OUT DWORD * pdwIP
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Check to see if the current user is the originator of the conference.
|
|
If he is, he can send to a receive only conference.
|
|
|
|
Arguments:
|
|
|
|
pITSdp - a pointer to the ITSdp interface.
|
|
|
|
pFlag - The result.
|
|
|
|
pdwIP - The local IP interface that should be used to reach the originator.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
const DWORD MAXUSERNAMELEN = 127;
|
|
DWORD dwUserNameLen = MAXUSERNAMELEN;
|
|
WCHAR szUserName[MAXUSERNAMELEN+1];
|
|
|
|
// determine the name of the current user
|
|
if (!GetUserNameW(szUserName, &dwUserNameLen))
|
|
{
|
|
LOG((MSP_ERROR, "cant' get user name. %x", GetLastError()));
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
LOG((MSP_INFO, "current user: %ws", szUserName));
|
|
|
|
// find out if the current user is the originator of the conference.
|
|
BSTR Originator = NULL;
|
|
HRESULT hr = pITSdp->get_Originator(&Originator);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "cant' get originator. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_INFO, "originator: %ws", Originator));
|
|
|
|
*pFlag = (_wcsnicmp(szUserName, Originator, lstrlenW(szUserName)) == 0);
|
|
|
|
SysFreeString(Originator);
|
|
|
|
// Get the machine IP address of the originator.
|
|
BSTR MachineAddress = NULL;
|
|
hr = pITSdp->get_MachineAddress(&MachineAddress);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "cant' get MachineAddress. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_INFO, "MachineAddress: %ws", MachineAddress));
|
|
|
|
DWORD dwIP = FindInterfaceByName(MachineAddress);
|
|
|
|
SysFreeString(MachineAddress);
|
|
|
|
*pdwIP = dwIP;
|
|
|
|
LOG((MSP_INFO, "Interface to use:%x", *pdwIP));
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
HRESULT GetAddress(
|
|
IN IUnknown * pIUnknown,
|
|
OUT DWORD * pdwAddress,
|
|
OUT DWORD * pdwTTL
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Get the IP address and TTL value from a connection. It is a "c=" line
|
|
in the SDP blob.
|
|
|
|
Arguments:
|
|
|
|
pIUnknow - an object that might contain connection information.
|
|
|
|
pdwAddress - the mem address to store the IP address.
|
|
|
|
pdwTTL - the mem address to store the TTL value.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
// query for the ITConnection i/f
|
|
CComPtr<ITConnection> pITConnection;
|
|
HRESULT hr = pIUnknown->QueryInterface(IID_ITConnection, (void **)&pITConnection);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get connection interface. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// get the start address,
|
|
BSTR StartAddress = NULL;
|
|
hr = pITConnection->get_StartAddress(&StartAddress);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get start address. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// Get the IP address from the string.
|
|
const DWORD MAXIPADDRLEN = 20;
|
|
char Buffer[MAXIPADDRLEN+1];
|
|
|
|
// first convert the string to ascii.
|
|
Buffer[0] = '\0';
|
|
if (!WideCharToMultiByte(
|
|
CP_ACP,
|
|
0,
|
|
StartAddress,
|
|
-1,
|
|
Buffer,
|
|
MAXIPADDRLEN,
|
|
NULL,
|
|
NULL
|
|
))
|
|
{
|
|
LOG((MSP_ERROR, "converting address. %ws", StartAddress));
|
|
SysFreeString(StartAddress);
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
SysFreeString(StartAddress);
|
|
|
|
// convert the string to DWORD IP address.
|
|
DWORD dwIP = ntohl(inet_addr(Buffer));
|
|
if (dwIP == INADDR_NONE)
|
|
{
|
|
LOG((MSP_ERROR, "invalid IP address. %s", Buffer));
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
// get the TTL value.
|
|
BYTE Ttl;
|
|
hr = pITConnection->get_Ttl(&Ttl);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "can't get TTL."));
|
|
return hr;
|
|
}
|
|
|
|
*pdwAddress = dwIP;
|
|
*pdwTTL = Ttl;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CheckAttributes(
|
|
IN IUnknown * pIUnknown,
|
|
OUT BOOL * pbSendOnly,
|
|
OUT BOOL * pbRecvOnly,
|
|
OUT DWORD * pdwMSPerPacket,
|
|
OUT BOOL * pbCIF
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Check the direction of the media, find out if it is send only or
|
|
receive only.
|
|
|
|
Arguments:
|
|
|
|
pIUnknow - an object that might have a attribute list.
|
|
|
|
pbSendOnly - the mem address to store the returned BOOL.
|
|
|
|
pbRecvOnly - the mem address to store the returned BOOL.
|
|
|
|
pbCIF - if CIF is used for video.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
// query for the ITAttributeList i/f
|
|
CComPtr<ITAttributeList> pIAttList;
|
|
HRESULT hr = pIUnknown->QueryInterface(IID_ITAttributeList, (void **)&pIAttList);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get attribute interface. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// get the number of attributes
|
|
long lCount;
|
|
hr = pIAttList->get_Count(&lCount);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get attribute count. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
*pbRecvOnly = FALSE;
|
|
*pbSendOnly = FALSE;
|
|
*pdwMSPerPacket = 0;
|
|
*pbCIF = FALSE;
|
|
|
|
const WCHAR * const SENDONLY = L"sendonly";
|
|
const WCHAR * const RECVONLY = L"recvonly";
|
|
const WCHAR * const FORMAT = L"fmtp";
|
|
const WCHAR * const PTIME = L"ptime:";
|
|
const WCHAR * const CIF = L" CIF=";
|
|
|
|
for (long i = 1; i <= lCount; i ++)
|
|
{
|
|
|
|
// get the attributes and check if sendonly of recvonly is specified.
|
|
BSTR Attribute = NULL;
|
|
hr = pIAttList->get_Item(i, &Attribute);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get attribute item. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
if (_wcsnicmp(SENDONLY, Attribute, lstrlen(SENDONLY)) == 0)
|
|
{
|
|
*pbSendOnly = TRUE;
|
|
}
|
|
else if (_wcsnicmp(RECVONLY, Attribute, lstrlen(RECVONLY)) == 0)
|
|
{
|
|
*pbRecvOnly = TRUE;
|
|
}
|
|
else if (_wcsnicmp(PTIME, Attribute, lstrlen(PTIME)) == 0)
|
|
{
|
|
// read the number of milliseconds per packet.
|
|
*pdwMSPerPacket = (DWORD)_wtol(Attribute + lstrlen(PTIME));
|
|
|
|
// RFC 1890 only requires an app to support 200ms packets.
|
|
if (*pdwMSPerPacket > 200)
|
|
{
|
|
// invalid tag, we just use our default.
|
|
*pdwMSPerPacket = 0;
|
|
}
|
|
|
|
}
|
|
else if (_wcsnicmp(FORMAT, Attribute, lstrlen(FORMAT)) == 0)
|
|
{
|
|
if (wcsstr(Attribute, CIF))
|
|
{
|
|
*pbCIF = TRUE;
|
|
}
|
|
}
|
|
|
|
SysFreeString(Attribute);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::ProcessMediaItem(
|
|
IN ITMedia * pITMedia,
|
|
IN DWORD dwMediaTypeMask,
|
|
OUT DWORD * pdwMediaType,
|
|
OUT WORD * pwPort,
|
|
OUT DWORD * pdwPayloadType
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Process a "m=" line, find out the media type, port, and payload type.
|
|
|
|
Arguments:
|
|
|
|
dwMediaTypeMask - the media type of this call.
|
|
|
|
pdwMediaType - return the media type of this media item.
|
|
|
|
pwPort - return the port number used for this media.
|
|
|
|
pdwPayloadType - the RTP payload type.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
S_FALSE - everything is all right but the media type is not needed.
|
|
|
|
--*/
|
|
{
|
|
// get the name of the media.
|
|
BSTR MediaName = NULL;
|
|
HRESULT hr = pITMedia->get_MediaName(&MediaName);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get media name. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_INFO, "media name: %ws", MediaName));
|
|
|
|
// check if the media is audio or video.
|
|
const WCHAR * const AUDIO = L"audio";
|
|
const WCHAR * const VIDEO = L"video";
|
|
const DWORD NAMELEN = 5;
|
|
|
|
DWORD dwMediaType = 0;
|
|
if (_wcsnicmp(AUDIO, MediaName, NAMELEN) == 0)
|
|
{
|
|
dwMediaType = TAPIMEDIATYPE_AUDIO;
|
|
}
|
|
else if (_wcsnicmp(VIDEO, MediaName, NAMELEN) == 0)
|
|
{
|
|
dwMediaType = TAPIMEDIATYPE_VIDEO;
|
|
}
|
|
|
|
SysFreeString(MediaName);
|
|
|
|
// check if the call wants this media type.
|
|
if ((dwMediaType & dwMediaTypeMask) == 0)
|
|
{
|
|
// We don't need this media type in this call.
|
|
LOG((MSP_INFO, "media skipped."));
|
|
return S_FALSE;
|
|
}
|
|
|
|
// get start port
|
|
long lStartPort;
|
|
hr = pITMedia->get_StartPort(&lStartPort);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get start port. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// get the transport Protocol
|
|
BSTR TransportProtocol = NULL;
|
|
hr = pITMedia->get_TransportProtocol(&TransportProtocol);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get transport Protocol. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// varify that the protocol is RTP.
|
|
const WCHAR * const RTP = L"RTP";
|
|
const DWORD PROTOCOLLEN = 3;
|
|
|
|
if (_wcsnicmp(RTP, TransportProtocol, PROTOCOLLEN) != 0)
|
|
{
|
|
LOG((MSP_ERROR, "wrong transport Protocol:%ws", TransportProtocol));
|
|
SysFreeString(TransportProtocol);
|
|
return S_FALSE;
|
|
}
|
|
|
|
SysFreeString(TransportProtocol);
|
|
|
|
// get the format code list
|
|
VARIANT Variant;
|
|
VariantInit(&Variant);
|
|
|
|
hr = pITMedia->get_FormatCodes(&Variant);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get format codes. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// Verify that the SafeArray is in proper shape.
|
|
if(SafeArrayGetDim(V_ARRAY(&Variant)) != 1)
|
|
{
|
|
LOG((MSP_ERROR, "wrong dimension for the format code. %x", hr));
|
|
VariantClear(&Variant);
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
long index = 1;
|
|
hr = SafeArrayGetLBound(V_ARRAY(&Variant), 1, &index);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Can't get the lower bound. %x", hr));
|
|
VariantClear(&Variant);
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
// Get the first format code because we only support one format.
|
|
BSTR Format = NULL;
|
|
hr = SafeArrayGetElement(V_ARRAY(&Variant), &index, &Format);
|
|
|
|
// clear the variant because we don't need it any more
|
|
VariantClear(&Variant);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get first format code. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_INFO, "format code: %ws", Format));
|
|
|
|
DWORD dwPayloadType = (DWORD)_wtoi(Format);
|
|
|
|
SysFreeString(Format);
|
|
|
|
*pdwMediaType = dwMediaType;
|
|
*pwPort = (WORD)lStartPort;
|
|
*pdwPayloadType = dwPayloadType;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::ConfigStreamsBasedOnSDP(
|
|
IN ITSdp * pITSdp,
|
|
IN DWORD dwAudioQOSLevel,
|
|
IN DWORD dwVideoQOSLevel
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Configure the streams based on the information in the SDP blob.
|
|
|
|
Arguments:
|
|
|
|
pITSdp - the SDP object. It contains parsed information.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
// find out if the current user is the originator of the conference.
|
|
BOOL fIsOriginator;
|
|
DWORD dwLocalInterface = INADDR_NONE;
|
|
|
|
HRESULT hr = CheckOrigin(pITSdp, &fIsOriginator, &dwLocalInterface);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "check origin. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_INFO, "Local interface: %x", dwLocalInterface));
|
|
|
|
// get the start IP address and TTL value from the connection.
|
|
DWORD dwIPGlobal, dwTTLGlobal;
|
|
hr = GetAddress(pITSdp, &dwIPGlobal, &dwTTLGlobal);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get global address. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// find out if this conference is sendonly or recvonly.
|
|
BOOL fSendOnlyGlobal = FALSE, fRecvOnlyGlobal = FALSE, fCIF = FALSE;
|
|
DWORD dwMSPerPacket;
|
|
hr = CheckAttributes(
|
|
pITSdp, &fSendOnlyGlobal, &fRecvOnlyGlobal, &dwMSPerPacket, &fCIF);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "check global attributes. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// get the media information
|
|
CComPtr<ITMediaCollection> pICollection;
|
|
hr = pITSdp->get_MediaCollection(&pICollection);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get the media collection. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// find out how many media sessions are in the blobl.
|
|
long lCount;
|
|
hr = pICollection->get_Count(&lCount);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get number of media items. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
if (lCount > 0)
|
|
{
|
|
// change the call into connected state since the SDP is OK.
|
|
// We are going to set up each every streams next.
|
|
SendTSPMessage(CALL_CONNECTED, 0);
|
|
}
|
|
|
|
DWORD dwNumSucceeded = 0;
|
|
|
|
// for each media session, get info configure a stream.
|
|
for(long i=1; i <= lCount; i++)
|
|
{
|
|
// get the media item first.
|
|
ITMedia *pITMedia;
|
|
hr = pICollection->get_Item(i, &pITMedia);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "get media item. %x", hr));
|
|
continue;
|
|
}
|
|
|
|
DWORD dwMediaType;
|
|
STREAMSETTINGS Setting;
|
|
|
|
ZeroMemory(&Setting, sizeof(STREAMSETTINGS));
|
|
|
|
// find out the information about the media. Here we pass in the media
|
|
// type of call so that we won't wasting time reading the attributes
|
|
// for a media type we don't need.
|
|
hr = ProcessMediaItem(
|
|
pITMedia,
|
|
m_dwMediaType,
|
|
&dwMediaType,
|
|
&Setting.wRTPPortRemote,
|
|
&Setting.dwPayloadType
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "process media. %x", hr));
|
|
continue;
|
|
}
|
|
|
|
// if the return value is S_FALSE from the previous call, this media
|
|
// type is not needed for the call.
|
|
if (hr != S_OK)
|
|
{
|
|
// the media is not needed.
|
|
continue;
|
|
}
|
|
|
|
Setting.dwQOSLevel = (dwMediaType == TAPIMEDIATYPE_AUDIO)
|
|
? dwAudioQOSLevel : dwVideoQOSLevel;
|
|
|
|
// Get the local connect information.
|
|
DWORD dwIP, dwTTL;
|
|
hr = GetAddress(pITMedia, &dwIP, &dwTTL);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_WARN, "no local address, use global one", hr));
|
|
Setting.dwIPRemote = dwIPGlobal;
|
|
Setting.dwTTL = dwTTLGlobal;
|
|
}
|
|
else
|
|
{
|
|
Setting.dwIPRemote = dwIP;
|
|
Setting.dwTTL = dwTTL;
|
|
}
|
|
|
|
// find out if this media is sendonly or recvonly.
|
|
BOOL fSendOnly = FALSE, fRecvOnly = FALSE, fCIF = FALSE;
|
|
hr = CheckAttributes(
|
|
pITMedia, &fSendOnly, &fRecvOnly, &dwMSPerPacket, &fCIF);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "check local attributes. %x", hr));
|
|
}
|
|
|
|
fSendOnly = fSendOnly || fSendOnlyGlobal;
|
|
fRecvOnly = (fRecvOnly || fRecvOnlyGlobal) && (!fIsOriginator);
|
|
Setting.dwMSPerPacket = dwMSPerPacket;
|
|
Setting.fCIF = fCIF;
|
|
|
|
// The media item is not needed after this point.
|
|
pITMedia->Release();
|
|
|
|
// Go through the existing streams and find out if any stream
|
|
// can be configured.
|
|
|
|
// Note: we are not creating any new streams now. We might want to
|
|
// do it in the future if we want to support two sessions of the
|
|
// same media type.
|
|
|
|
CLock lock(m_lock);
|
|
for (long j = 0; j < m_Streams.GetSize(); j ++)
|
|
{
|
|
CIPConfMSPStream* pStream = (CIPConfMSPStream*)m_Streams[j];
|
|
|
|
if ((pStream->MediaType() != dwMediaType)
|
|
|| pStream->IsConfigured()
|
|
|| (fSendOnly && pStream->Direction() == TD_RENDER)
|
|
|| (fRecvOnly && pStream->Direction() == TD_CAPTURE)
|
|
)
|
|
{
|
|
// this stream should not be configured.
|
|
continue;
|
|
}
|
|
|
|
// set the local interface that the call should bind to.
|
|
Setting.dwIPLocal = m_dwIPInterface;
|
|
|
|
if ((m_dwIPInterface == INADDR_ANY)
|
|
&& (dwLocalInterface != INADDR_NONE))
|
|
{
|
|
Setting.dwIPLocal = dwLocalInterface;
|
|
}
|
|
|
|
// configure the stream, it will be started as well.
|
|
hr = pStream->Configure(Setting);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "configure stream failed. %x", hr));
|
|
}
|
|
else
|
|
{
|
|
dwNumSucceeded ++;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (dwNumSucceeded == 0)
|
|
{
|
|
LOG((MSP_ERROR, "No media succeeded."));
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::ParseSDP(
|
|
IN WCHAR * pSDP,
|
|
IN DWORD dwAudioQOSLevel,
|
|
IN DWORD dwVideoQOSLevel
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Parse the SDP string. The function uses the SdpConferenceBlob object
|
|
to parse the string.
|
|
|
|
Arguments:
|
|
|
|
pSDP - the SDP string.
|
|
dwAudioQOSLevel - the QOS requirement for audio.
|
|
dwVideoQOSLevel - the QOS requirement for video.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
// co-create an sdp conference blob component
|
|
// query for the ITConferenceBlob interface
|
|
CComPtr<ITConferenceBlob> pIConfBlob;
|
|
|
|
HRESULT hr = ::CoCreateInstance(
|
|
CLSID_SdpConferenceBlob,
|
|
NULL,
|
|
CLSCTX_INPROC_SERVER,
|
|
IID_ITConferenceBlob,
|
|
(void **)&pIConfBlob
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "creating a SDPBlob object. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// conver the sdp into a BSTR to use the interface.
|
|
BSTR bstrSDP = SysAllocString(pSDP);
|
|
if (bstrSDP == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "out of mem converting SDP to a BSTR."));
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
// Parse the SDP string.
|
|
hr = pIConfBlob->Init(NULL, BCS_ASCII, bstrSDP);
|
|
|
|
// the string is not needed any more.
|
|
SysFreeString(bstrSDP);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "parse the SDPBlob object. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// Get the ITSdp interface.
|
|
CComPtr<ITSdp> pITSdp;
|
|
hr = pIConfBlob->QueryInterface(IID_ITSdp, (void **)&pITSdp);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "can't get the ITSdp interface. %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
// check main sdp validity
|
|
VARIANT_BOOL IsValid;
|
|
hr = pITSdp->get_IsValid(&IsValid);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "can't get the valid flag on the SDP %x", hr));
|
|
return hr;
|
|
}
|
|
|
|
if (!IsValid)
|
|
{
|
|
LOG((MSP_ERROR, "the SDP is not valid %x", hr));
|
|
return E_FAIL;
|
|
}
|
|
|
|
return ConfigStreamsBasedOnSDP(
|
|
pITSdp,
|
|
dwAudioQOSLevel,
|
|
dwVideoQOSLevel
|
|
);
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::SendTSPMessage(
|
|
IN TSP_MSP_COMMAND command,
|
|
IN DWORD dwParam1,
|
|
IN DWORD dwParam2
|
|
) const
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Send the TSP a message from the MSP.
|
|
|
|
Arguments:
|
|
|
|
command - the command to be sent.
|
|
|
|
dwParam1 - the first DWORD used in the command.
|
|
|
|
dwParam2 - the second DWORD used in the command.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE, "SendTSPMessage, command %d, dwParam1 %d, dwParam2",
|
|
command, dwParam1, dwParam2));
|
|
|
|
if (InterlockedCompareExchange((long*)&m_fShutDown, TRUE, TRUE))
|
|
{
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
// first allocate the memory.
|
|
DWORD dwSize = sizeof(MSG_TSPMSPDATA);
|
|
|
|
MSPEVENTITEM* pEventItem = AllocateEventItem(dwSize);
|
|
|
|
if (pEventItem == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "No memory for the TSPMSP data, size: %d", dwSize));
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
// Fill in the necessary fields for the event structure.
|
|
pEventItem->MSPEventInfo.dwSize =
|
|
sizeof(MSP_EVENT_INFO) + sizeof(MSG_TSPMSPDATA);
|
|
pEventItem->MSPEventInfo.Event = ME_TSP_DATA;
|
|
pEventItem->MSPEventInfo.hCall = m_htCall;
|
|
|
|
// Fill in the data for the TSP.
|
|
pEventItem->MSPEventInfo.MSP_TSP_DATA.dwBufferSize = sizeof(MSG_TSPMSPDATA);
|
|
|
|
MSG_TSPMSPDATA *pData = (MSG_TSPMSPDATA *)
|
|
pEventItem->MSPEventInfo.MSP_TSP_DATA.pBuffer;
|
|
|
|
pData->command = command;
|
|
switch (command)
|
|
{
|
|
|
|
case CALL_DISCONNECTED:
|
|
pData->CallDisconnected.dwReason = dwParam1;
|
|
break;
|
|
|
|
case CALL_QOS_EVENT:
|
|
pData->QosEvent.dwEvent = dwParam1;
|
|
pData->QosEvent.dwMediaMode = dwParam2;
|
|
break;
|
|
|
|
case CALL_CONNECTED:
|
|
break;
|
|
|
|
default:
|
|
|
|
LOG((MSP_ERROR, "Wrong command type for TSP"));
|
|
|
|
FreeEventItem(pEventItem);
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
HRESULT hr = m_pMSPAddress->PostEvent(pEventItem);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Post event failed %x", hr));
|
|
|
|
FreeEventItem(pEventItem);
|
|
|
|
return hr;
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::CheckUnusedStreams()
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Find out which streams are not used and send tapi events about them.
|
|
|
|
Arguments:
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE, "CheckUnusedStreams"));
|
|
|
|
CLock lock(m_lock);
|
|
for (long j = 0; j < m_Streams.GetSize(); j ++)
|
|
{
|
|
CIPConfMSPStream* pStream = (CIPConfMSPStream*)m_Streams[j];
|
|
|
|
if (pStream->IsConfigured())
|
|
{
|
|
// find the next.
|
|
continue;
|
|
}
|
|
|
|
MSPEVENTITEM* pEventItem = AllocateEventItem();
|
|
|
|
if (pEventItem == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "No memory for the TSPMSP data, size: %d", sizeof(MSPEVENTITEM)));
|
|
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
// Fill in the necessary fields for the event structure.
|
|
pEventItem->MSPEventInfo.dwSize = sizeof(MSP_EVENT_INFO);;
|
|
pEventItem->MSPEventInfo.Event = ME_CALL_EVENT;
|
|
pEventItem->MSPEventInfo.hCall = m_htCall;
|
|
|
|
pEventItem->MSPEventInfo.MSP_CALL_EVENT_INFO.Type = CALL_STREAM_NOT_USED;
|
|
pEventItem->MSPEventInfo.MSP_CALL_EVENT_INFO.Cause = CALL_CAUSE_REMOTE_REQUEST;
|
|
pEventItem->MSPEventInfo.MSP_CALL_EVENT_INFO.pStream = m_Streams[j];
|
|
|
|
// Addref to prevent it from going away.
|
|
m_Streams[j]->AddRef();
|
|
|
|
pEventItem->MSPEventInfo.MSP_CALL_EVENT_INFO.pTerminal = NULL;
|
|
pEventItem->MSPEventInfo.MSP_CALL_EVENT_INFO.hrError= 0;
|
|
|
|
// send the event to tapi.
|
|
HRESULT hr = m_pMSPAddress->PostEvent(pEventItem);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Post event failed %x", hr));
|
|
|
|
FreeEventItem(pEventItem);
|
|
return hr;
|
|
}
|
|
}
|
|
return S_OK;
|
|
}
|
|
|
|
DWORD WINAPI CIPConfMSPCall::WorkerCallbackDispatcher(VOID *pContext)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Because Parsing the SDP and configure the streams uses a lot of COM
|
|
stuff, we can't rely on the RPC thread the calls into the MSP to
|
|
receive the TSP data. So, we let our own working thread do the work.
|
|
This method is the callback function for the queued work item. It
|
|
just gets the call object from the context structure and calls a method
|
|
on the call object to handle the work item.
|
|
|
|
Arguments:
|
|
|
|
pContext - A pointer to a CALLWORKITEM structure.
|
|
|
|
Return Value:
|
|
|
|
HRESULT.
|
|
|
|
--*/
|
|
{
|
|
_ASSERTE(!IsBadReadPtr(pContext, sizeof CALLWORKITEM));
|
|
|
|
CALLWORKITEM *pItem = (CALLWORKITEM *)pContext;
|
|
|
|
pItem->pCall->ProcessWorkerCallBack(pItem->Buffer, pItem->dwLen);
|
|
pItem->pCall->MSPCallRelease();
|
|
|
|
free(pItem);
|
|
|
|
return NOERROR;
|
|
}
|
|
|
|
DWORD CIPConfMSPCall::ProcessWorkerCallBack(
|
|
IN PBYTE pBuffer,
|
|
IN DWORD dwSize
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function handles the work item given by the TSP.
|
|
|
|
Arguments:
|
|
|
|
pBuffer - a buffer that contains a TSP_MSP command block.
|
|
|
|
dwSize - the size of the buffer.
|
|
|
|
Return Value:
|
|
|
|
NOERROR.
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE, "PreocessWorkerCallBAck"));
|
|
|
|
_ASSERTE(!IsBadReadPtr(pBuffer, dwSize));
|
|
|
|
MSG_TSPMSPDATA * pData = (MSG_TSPMSPDATA *)pBuffer;
|
|
|
|
HRESULT hr;
|
|
|
|
switch (pData->command)
|
|
{
|
|
case CALL_START:
|
|
|
|
// Parse the SDP contained in the command block.
|
|
hr = ParseSDP(pData->CallStart.szSDP,
|
|
pData->CallStart.dwAudioQOSLevel,
|
|
pData->CallStart.dwVideoQOSLevel
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
// disconnect the call if someting terrible happend.
|
|
SendTSPMessage(CALL_DISCONNECTED, 0);
|
|
|
|
LOG((MSP_ERROR, "parsing theSDPBlob object. %x", hr));
|
|
return NOERROR;
|
|
}
|
|
|
|
// go through the streams and send events if they are not used.
|
|
hr = CheckUnusedStreams();
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "start the streams failed. %x", hr));
|
|
}
|
|
break;
|
|
|
|
case CALL_STOP:
|
|
InternalShutDown();
|
|
break;
|
|
}
|
|
|
|
return NOERROR;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::ReceiveTSPCallData(
|
|
IN PBYTE pBuffer,
|
|
IN DWORD dwSize
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function handles the work item given by the TSP.
|
|
|
|
Arguments:
|
|
|
|
pBuffer - a buffer that contains a TSP_MSP command block.
|
|
|
|
dwSize - the size of the buffer.
|
|
|
|
Return Value:
|
|
|
|
NOERROR.
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE,
|
|
"ReceiveTSPCallData, pBuffer %x, dwSize %d", pBuffer, dwSize));
|
|
|
|
MSG_TSPMSPDATA * pData = (MSG_TSPMSPDATA *)pBuffer;
|
|
switch (pData->command)
|
|
{
|
|
case CALL_START:
|
|
|
|
// make sure the string is valid.
|
|
if ((IsBadReadPtr(pData->CallStart.szSDP,
|
|
(pData->CallStart.dwSDPLen + 1) * sizeof (WCHAR)))
|
|
|| (pData->CallStart.szSDP[pData->CallStart.dwSDPLen] != 0))
|
|
{
|
|
LOG((MSP_ERROR, "the TSP data is invalid."));
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
LOG((MSP_INFO, "SDP string\n%ws", pData->CallStart.szSDP));
|
|
|
|
break;
|
|
|
|
case CALL_STOP:
|
|
break;
|
|
|
|
default:
|
|
LOG((MSP_ERROR,
|
|
"wrong command received from the TSP:%x", pData->command));
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
// allocate a work item structure for our worker thread.
|
|
CALLWORKITEM *pItem = (CALLWORKITEM *)malloc(sizeof(CALLWORKITEM) + dwSize);
|
|
|
|
if (pItem == NULL)
|
|
{
|
|
// Disconnect the call because of out of memory.
|
|
SendTSPMessage(CALL_DISCONNECTED, 0);
|
|
|
|
LOG((MSP_ERROR, "out of memory for work item."));
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
this->MSPCallAddRef();
|
|
pItem->pCall = this;
|
|
pItem->dwLen = dwSize;
|
|
CopyMemory(pItem->Buffer, pBuffer, dwSize);
|
|
|
|
// post a work item to our worker thread.
|
|
HRESULT hr = g_Thread.QueueWorkItem(
|
|
WorkerCallbackDispatcher, // the callback
|
|
pItem, // the context.
|
|
FALSE // sync (FALSE means asyn)
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
if (pData->command == CALL_START)
|
|
{
|
|
// Disconnect the call because we can't handle the work.
|
|
SendTSPMessage(CALL_DISCONNECTED, 0);
|
|
}
|
|
|
|
this->MSPCallRelease();
|
|
free(pItem);
|
|
|
|
LOG((MSP_ERROR, "queue work item failed."));
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
STDMETHODIMP CIPConfMSPCall::EnumerateParticipants(
|
|
OUT IEnumParticipant ** ppEnumParticipant
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method returns an enumerator to the participants.
|
|
|
|
Arguments:
|
|
ppEnumParticipant - the memory location to store the returned pointer.
|
|
|
|
Return Value:
|
|
|
|
S_OK
|
|
E_POINTER
|
|
E_OUTOFMEMORY
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE,
|
|
"EnumerateParticipants entered. ppEnumParticipant:%x", ppEnumParticipant));
|
|
|
|
//
|
|
// Check parameters.
|
|
//
|
|
|
|
if (IsBadWritePtr(ppEnumParticipant, sizeof(VOID *)))
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::EnumerateParticipants - "
|
|
"bad pointer argument - exit E_POINTER"));
|
|
|
|
return E_POINTER;
|
|
}
|
|
|
|
//
|
|
// First see if this call has been shut down.
|
|
// acquire the lock before accessing the Participant object list.
|
|
//
|
|
|
|
CLock lock(m_ParticipantLock);
|
|
|
|
if (m_Participants.GetData() == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::EnumerateParticipants - "
|
|
"call appears to have been shut down - exit E_UNEXPECTED"));
|
|
|
|
// This call has been shut down.
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
//
|
|
// Create an enumerator object.
|
|
//
|
|
HRESULT hr = CreateParticipantEnumerator(
|
|
m_Participants.GetData(), // the begin itor
|
|
m_Participants.GetData() + m_Participants.GetSize(), // the end itor,
|
|
ppEnumParticipant
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::EnumerateParticipants - "
|
|
"create enumerator object failed, %x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_TRACE, "CIPConfMSPCall::EnumerateParticipants - exit S_OK"));
|
|
|
|
return hr;
|
|
}
|
|
|
|
STDMETHODIMP CIPConfMSPCall::get_Participants(
|
|
OUT VARIANT * pVariant
|
|
)
|
|
{
|
|
LOG((MSP_TRACE, "CIPConfMSPCall::get_Participants - enter"));
|
|
|
|
//
|
|
// Check parameters.
|
|
//
|
|
|
|
if ( IsBadWritePtr(pVariant, sizeof(VARIANT) ) )
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::get_Participants - "
|
|
"bad pointer argument - exit E_POINTER"));
|
|
|
|
return E_POINTER;
|
|
}
|
|
|
|
//
|
|
// See if this call has been shut down. Acquire the lock before accessing
|
|
// the Participant object list.
|
|
//
|
|
|
|
CLock lock(m_ParticipantLock);
|
|
|
|
if (m_Participants.GetData() == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::get_Participants - "
|
|
"call appears to have been shut down - exit E_UNEXPECTED"));
|
|
|
|
// This call has been shut down.
|
|
return E_UNEXPECTED;
|
|
}
|
|
|
|
//
|
|
// create the collection object - see mspcoll.h
|
|
//
|
|
HRESULT hr = CreateParticipantCollection(
|
|
m_Participants.GetData(), // the begin itor
|
|
m_Participants.GetData() + m_Participants.GetSize(), // the end itor,
|
|
m_Participants.GetSize(), // the size
|
|
pVariant
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "CIPConfMSPCall::get_Participants - "
|
|
"create collection failed - exit 0x%08x", hr));
|
|
|
|
return hr;
|
|
}
|
|
|
|
LOG((MSP_TRACE, "CIPConfMSPCall::get_Participants - exit S_OK"));
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
// ITLocalParticipant methods, called by the app.
|
|
STDMETHODIMP CIPConfMSPCall::get_LocalParticipantTypedInfo(
|
|
IN PARTICIPANT_TYPED_INFO InfoType,
|
|
OUT BSTR * ppInfo
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Get a information item for the local participant. This information is
|
|
sent out to other participants in the conference.
|
|
|
|
Arguments:
|
|
|
|
InfoType - The type of the information asked.
|
|
|
|
ppInfo - the mem address to store a BSTR.
|
|
|
|
Return Value:
|
|
|
|
S_OK,
|
|
E_INVALIDARG,
|
|
E_POINTER,
|
|
E_OUTOFMEMORY,
|
|
TAPI_E_NOITEMS
|
|
*/
|
|
{
|
|
LOG((MSP_TRACE, "CParticipant get info, type:%d", InfoType));
|
|
|
|
if (InfoType > PTI_PRIVATE || InfoType < PTI_CANONICALNAME)
|
|
{
|
|
LOG((MSP_ERROR, "CParticipant get info - invalid type:%d", InfoType));
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
if (IsBadWritePtr(ppInfo, sizeof(BSTR)))
|
|
{
|
|
LOG((MSP_ERROR, "CParticipant get info - exit E_POINTER"));
|
|
return E_POINTER;
|
|
}
|
|
|
|
// check if we have that info.
|
|
CLock lock(m_lock);
|
|
|
|
if (!m_fLocalInfoRetrieved)
|
|
{
|
|
HRESULT hr = InitializeLocalParticipant();
|
|
if (FAILED(hr))
|
|
{
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
int index = (int)InfoType;
|
|
if (m_InfoItems[index] == NULL)
|
|
{
|
|
LOG((MSP_INFO, "no local participant info item for %d", InfoType));
|
|
return TAPI_E_NOITEMS;
|
|
}
|
|
|
|
// make a BSTR out of it.
|
|
BSTR pName = SysAllocString(m_InfoItems[index]);
|
|
|
|
if (pName == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "CParticipant get info - exit out of mem"));
|
|
return E_POINTER;
|
|
}
|
|
|
|
// return the BSTR.
|
|
*ppInfo = pName;
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
// ITLocalParticipant methods, called by the app.
|
|
STDMETHODIMP CIPConfMSPCall::put_LocalParticipantTypedInfo(
|
|
IN PARTICIPANT_TYPED_INFO InfoType,
|
|
IN BSTR pInfo
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Set a information item for the local participant. This information is
|
|
sent out to other participants in the conference.
|
|
|
|
Arguments:
|
|
|
|
InfoType - The type of the information item.
|
|
|
|
pInfo - the information item.
|
|
|
|
Return Value:
|
|
|
|
S_OK,
|
|
E_INVALIDARG,
|
|
E_POINTER,
|
|
E_OUTOFMEMORY,
|
|
TAPI_E_NOITEMS
|
|
*/
|
|
{
|
|
LOG((MSP_TRACE, "set local info, type:%d", InfoType));
|
|
|
|
// We don't allow the app to change canonical name
|
|
if (InfoType > PTI_PRIVATE || InfoType <= PTI_CANONICALNAME)
|
|
{
|
|
LOG((MSP_ERROR, "set local info - invalid type:%d", InfoType));
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
if (IsBadStringPtr(pInfo, MAX_PARTICIPANT_TYPED_INFO_LENGTH))
|
|
{
|
|
LOG((MSP_ERROR, "set local info, bad ptr:%p", pInfo));
|
|
return E_POINTER;
|
|
}
|
|
|
|
DWORD dwLen = lstrlenW(pInfo) + 1;
|
|
if (dwLen > MAX_PARTICIPANT_TYPED_INFO_LENGTH)
|
|
{
|
|
LOG((MSP_ERROR, "local info too long"));
|
|
return E_INVALIDARG;
|
|
}
|
|
|
|
// check if we have that info.
|
|
CLock lock(m_lock);
|
|
|
|
if (!m_fLocalInfoRetrieved)
|
|
{
|
|
HRESULT hr = InitializeLocalParticipant();
|
|
if (FAILED(hr))
|
|
{
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
int index = (int)InfoType;
|
|
if (m_InfoItems[index] != NULL)
|
|
{
|
|
if (lstrcmpW(m_InfoItems[index], pInfo) == 0)
|
|
{
|
|
// The info is the same as what we are using.
|
|
return S_OK;
|
|
}
|
|
|
|
// the infomation is different, release the old info.
|
|
free(m_InfoItems[index]);
|
|
m_InfoItems[index] = NULL;
|
|
}
|
|
|
|
// save the info.
|
|
m_InfoItems[index] = (WCHAR *)malloc(dwLen * sizeof(WCHAR));
|
|
if (m_InfoItems[index] == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "out of mem for local info"));
|
|
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
CopyMemory(m_InfoItems[index], pInfo, dwLen * sizeof(WCHAR));
|
|
|
|
//
|
|
// The info is new, we need to set it on the streams.
|
|
//
|
|
|
|
// conver the WCHAR string to multibytes.
|
|
char Buffer[MAX_PARTICIPANT_TYPED_INFO_LENGTH];
|
|
|
|
DWORD dwNumBytes = WideCharToMultiByte(
|
|
GetACP(),
|
|
0,
|
|
pInfo,
|
|
dwLen,
|
|
Buffer,
|
|
MAX_PARTICIPANT_TYPED_INFO_LENGTH,
|
|
NULL,
|
|
NULL
|
|
);
|
|
|
|
if (dwNumBytes == 0)
|
|
{
|
|
LOG((MSP_ERROR, "coverting failed, error:%x", GetLastError()));
|
|
return E_FAIL;
|
|
}
|
|
|
|
for (int i = 0; i < m_Streams.GetSize(); i ++)
|
|
{
|
|
((CIPConfMSPStream*)m_Streams[i])->SetLocalParticipantInfo(
|
|
InfoType,
|
|
Buffer,
|
|
dwNumBytes
|
|
);
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::NewParticipant(
|
|
IN ITStream * pITStream,
|
|
IN DWORD dwSSRC,
|
|
IN DWORD dwSendRecv,
|
|
IN DWORD dwMediaType,
|
|
IN char * szCName,
|
|
OUT ITParticipant ** ppITParticipant
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method is called by a stream object when a new participant appears.
|
|
It looks throught the call's participant list, if the partcipant is
|
|
already in the list, it returns the pointer to the object. If it is not
|
|
found, a new object will be created and added into the list.
|
|
|
|
Arguments:
|
|
|
|
pITStream - the stream object.
|
|
|
|
dwSSRC - the SSRC of the participant in the stream.
|
|
|
|
dwSendRecv - a sender or a receiver.
|
|
|
|
dwMediaType - the media type of the stream.
|
|
|
|
szCName - the canonical name of the participant.
|
|
|
|
ppITParticipant - the address to store the returned pointer.
|
|
|
|
Return Value:
|
|
|
|
S_OK
|
|
E_OUTOFMEMORY
|
|
|
|
--*/
|
|
{
|
|
CLock lock(m_ParticipantLock);
|
|
|
|
HRESULT hr;
|
|
|
|
// First check to see if the participant is in our list. If he is already
|
|
// in the list, just return the object.
|
|
int index;
|
|
if (m_Participants.FindByCName(szCName, &index))
|
|
{
|
|
hr = ((CParticipant *)m_Participants[index])->
|
|
AddStream(pITStream, dwSSRC, dwSendRecv, dwMediaType);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "can not add a stream to a participant:%x", hr));
|
|
return hr;
|
|
}
|
|
|
|
*ppITParticipant = m_Participants[index];
|
|
(*ppITParticipant)->AddRef();
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
// create a new participant object.
|
|
CComObject<CParticipant> * pCOMParticipant;
|
|
|
|
hr = CComObject<CParticipant>::CreateInstance(&pCOMParticipant);
|
|
|
|
if (NULL == pCOMParticipant)
|
|
{
|
|
LOG((MSP_ERROR, "can not create a new participant:%x", hr));
|
|
return hr;
|
|
}
|
|
|
|
ITParticipant* pITParticipant;
|
|
|
|
// get the interface pointer.
|
|
hr = pCOMParticipant->_InternalQueryInterface(
|
|
IID_ITParticipant,
|
|
(void **)&pITParticipant
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Participant QueryInterface failed: %x", hr));
|
|
delete pCOMParticipant;
|
|
return hr;
|
|
}
|
|
|
|
// Initialize the object.
|
|
hr = pCOMParticipant->Init(
|
|
szCName, pITStream, dwSSRC, dwSendRecv, dwMediaType
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Create participant:call init failed: %x", hr));
|
|
pITParticipant->Release();
|
|
|
|
return hr;
|
|
}
|
|
|
|
// Add the Participant into our list of Participants.
|
|
if (!m_Participants.InsertAt(index, pITParticipant))
|
|
{
|
|
pITParticipant->Release();
|
|
|
|
LOG((MSP_ERROR, "out of memory in adding a Participant."));
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
// AddRef the interface pointer and return it.
|
|
pITParticipant->AddRef();
|
|
*ppITParticipant = pITParticipant;
|
|
|
|
SendParticipantEvent(PE_NEW_PARTICIPANT, pITParticipant);
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
HRESULT CIPConfMSPCall::ParticipantLeft(
|
|
IN ITParticipant * pITParticipant
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method is called by a stream object when a participant left the
|
|
conference.
|
|
|
|
Arguments:
|
|
|
|
pITParticipant - the participant that left.
|
|
|
|
Return Value:
|
|
|
|
S_OK
|
|
|
|
--*/
|
|
{
|
|
m_ParticipantLock.Lock();
|
|
|
|
BOOL fRemoved = m_Participants.Remove(pITParticipant);
|
|
|
|
m_ParticipantLock.Unlock();
|
|
|
|
if (fRemoved)
|
|
{
|
|
SendParticipantEvent(PE_PARTICIPANT_LEAVE, pITParticipant);
|
|
pITParticipant->Release();
|
|
}
|
|
else
|
|
{
|
|
LOG((MSP_ERROR, "can't remove Participant %p", pITParticipant));
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
void CIPConfMSPCall::SendParticipantEvent(
|
|
IN PARTICIPANT_EVENT Event,
|
|
IN ITParticipant * pITParticipant,
|
|
IN ITSubStream * pITSubStream
|
|
) const
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This method is called by a stream object to send a participant related
|
|
event to the app.
|
|
|
|
Arguments:
|
|
|
|
Event - the event code.
|
|
|
|
pITParticipant - the participant object.
|
|
|
|
pITSubStream - the substream object, if any.
|
|
|
|
Return Value:
|
|
|
|
nothing.
|
|
|
|
--*/
|
|
{
|
|
LOG((MSP_TRACE, "send participant event, event %d, participant: %p",
|
|
Event, pITParticipant));
|
|
|
|
|
|
// Just want to be safe here.
|
|
if (InterlockedCompareExchange((long*)&m_fShutDown, TRUE, TRUE))
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Create a private event object.
|
|
CComPtr<IDispatch> pEvent;
|
|
HRESULT hr = CreateParticipantEvent(
|
|
Event,
|
|
pITParticipant,
|
|
pITSubStream,
|
|
&pEvent
|
|
);
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "create event returned: %x", hr));
|
|
return;
|
|
}
|
|
|
|
MSPEVENTITEM* pEventItem = AllocateEventItem();
|
|
|
|
if (pEventItem == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "No memory for the TSPMSP data, size: %d", sizeof(MSPEVENTITEM)));
|
|
|
|
return;
|
|
}
|
|
|
|
// Fill in the necessary fields for the event structure.
|
|
pEventItem->MSPEventInfo.dwSize = sizeof(MSP_EVENT_INFO);;
|
|
pEventItem->MSPEventInfo.Event = ME_PRIVATE_EVENT;
|
|
pEventItem->MSPEventInfo.hCall = m_htCall;
|
|
|
|
pEventItem->MSPEventInfo.MSP_PRIVATE_EVENT_INFO.pEvent = pEvent;
|
|
pEventItem->MSPEventInfo.MSP_PRIVATE_EVENT_INFO.lEventCode = Event;
|
|
pEvent->AddRef();
|
|
|
|
// send the event to tapi.
|
|
hr = m_pMSPAddress->PostEvent(pEventItem);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Post event failed %x", hr));
|
|
|
|
pEvent->Release();
|
|
FreeEventItem(pEventItem);
|
|
}
|
|
}
|
|
|
|
VOID CIPConfMSPCall::HandleGraphEvent(
|
|
IN MSPSTREAMCONTEXT * pContext
|
|
)
|
|
{
|
|
long lEventCode;
|
|
LONG_PTR lParam1, lParam2; // win64 fix
|
|
|
|
HRESULT hr = pContext->pIMediaEvent->GetEvent(&lEventCode, &lParam1, &lParam2, 0);
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "Can not get the actual event. %x", hr));
|
|
return;
|
|
}
|
|
|
|
LOG((MSP_EVENT, "ProcessGraphEvent, code:%d param1:%x param2:%x",
|
|
lEventCode, lParam1, lParam2));
|
|
|
|
if (lEventCode == EC_PALETTE_CHANGED
|
|
|| lEventCode == EC_VIDEO_SIZE_CHANGED)
|
|
{
|
|
LOG((MSP_EVENT, "event %d ignored", lEventCode));
|
|
return;
|
|
}
|
|
|
|
//
|
|
// Create an event data structure that we will pass to the worker thread.
|
|
//
|
|
|
|
MULTI_GRAPH_EVENT_DATA * pData;
|
|
pData = new MULTI_GRAPH_EVENT_DATA;
|
|
|
|
if (pData == NULL)
|
|
{
|
|
LOG((MSP_ERROR, "Out of memory for event data."));
|
|
return;
|
|
}
|
|
|
|
pData->pCall = this;
|
|
pData->pITStream = pContext->pITStream;
|
|
pData->lEventCode = lEventCode;
|
|
pData->lParam1 = (long) lParam1; // win64 fix -- also need to change struct?
|
|
pData->lParam2 = (long) lParam2; // win64 fix -- also need to change struct?
|
|
|
|
//
|
|
// Make sure the call and stream don't go away while we handle the event.
|
|
// but use our special inner object addref for the call
|
|
//
|
|
|
|
pData->pCall->MSPCallAddRef();
|
|
pData->pITStream->AddRef();
|
|
|
|
//
|
|
// Queue an async work item to call ProcessGraphEvent.
|
|
//
|
|
|
|
hr = g_Thread.QueueWorkItem(AsyncMultiGraphEvent,
|
|
(void *) pData,
|
|
FALSE); // asynchronous
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
LOG((MSP_ERROR, "QueueWorkItem failed, return code:%x", hr));
|
|
}
|
|
}
|
|
|