547 lines
15 KiB
C
547 lines
15 KiB
C
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/*++
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Copyright (c) 1995-1996 Microsoft Corporation
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Module Name:
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medistrm.h
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Abstract:
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Contains constants and class declarations for the abstract MediaStream object. A MediaStream
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represents a single unidirectional stream, such as a received Video channel.
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--*/
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#ifndef _MEDISTRM_H_
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#define _MEDISTRM_H_
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#include "dtmf.h"
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#include <pshpack8.h> /* Assume 8 byte packing throughout */
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class DataPump;
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class TxStream;
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class RxStream;
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class AcmFilter;
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class VcmFilter;
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class MediaControl;
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class BufferPool;
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class AudioPacket;
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class VideoPacket;
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class SendMediaStream : public IMediaChannel {
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friend class SendAudioStream;
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protected:
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DataPump *m_pDP;
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TxStream *m_SendStream;
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MediaControl *m_InMedia;
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UINT m_CaptureDevice; // device id used for recording
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UINT m_PreviousCaptureDevice; // device id used for recording
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IRTPSession *m_Net;
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IRTPSend *m_pRTPSend;
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BYTE m_RTPPayload; // payload type
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//BufferPool *m_NetBufferPool;
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DWORD m_SendTimestamp;
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DWORD m_SavedTickCount;
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DWORD m_ThreadFlags;
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DWORD m_DPFlags;
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BOOL m_fSending;
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MEDIA_FORMAT_ID m_PrevFormatId;
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DWORD m_dwDstSize;
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FLOWSPEC m_flowspec;
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HRESULT SetFlowSpec();
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HANDLE m_hCapturingThread;
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DWORD m_CaptureThId;
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CRITICAL_SECTION m_crsQos;
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// IQOS interface pointer and two resources requests: one for BW and one for CPU
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struct {
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int cResourceRequests;
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RESOURCEREQUEST aResourceRequest[2];
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} m_aRRq;
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// Performance statistics
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struct {
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DWORD dwMsCap; // Capture CPU usage (ms)
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DWORD dwMsComp; // Compression CPU usage (ms)
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DWORD dwBits; // Compressed audio or video frame size (bits)
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DWORD dwCount; // Number of video frames captured or audio packets recorded
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DWORD dwOldestTs; // Oldest QoS callback timestamp
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DWORD dwNewestTs; // Most recent QoS callback timestamp
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HKEY hPerfKey; // Handle to CPU perf data collection reg key on Win95/98
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DWORD dwSmoothedCPUUsage; // Previous CPU usage value - used to compute slow-varying average in CPU usage
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BOOL fWinNT; // Are we running on WinNT or Win95/98?
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struct { // Structure used to extract CPU usage performance on NT
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DWORD cbPerfData;
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PBYTE pbyPerfData;
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HANDLE hPerfData;
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LONGLONG llPerfTime100nSec;
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PLONGLONG pllCounterValue;
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DWORD dwProcessorIndex;
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DWORD dwPercentProcessorIndex;
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DWORD dwNumProcessors;
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} NtCPUUsage;
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} m_Stats;
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RTP_STATS m_RTPStats; // network stats
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public:
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SendMediaStream()
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{
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InitializeCriticalSection(&m_crsQos);
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};
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virtual ~SendMediaStream()
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{
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DeleteCriticalSection(&m_crsQos);
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}
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// Implementation of IMediaChannel::GetState
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STDMETHODIMP_(DWORD) GetState()
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{
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if (m_DPFlags & DPFLAG_STARTED_SEND) return MSSTATE_STARTED;
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else if (m_DPFlags & DPFLAG_CONFIGURED_SEND) return MSSTATE_CONFIGURED;
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else return MSSTATE_UNCONFIGURED;
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}
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virtual HRESULT Initialize(DataPump *) = 0;
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virtual DWORD Send() = 0;
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virtual void EndSend() = 0;
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virtual HRESULT STDMETHODCALLTYPE SetNetworkInterface(IUnknown *pUnknown);
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} ;
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class RecvMediaStream : public IMediaChannel
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{
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friend class DataPump;
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friend BOOL RTPRecvCallback(DWORD_PTR,WSABUF *);
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protected:
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DataPump *m_pDP;
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RxStream *m_RecvStream;
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MediaControl *m_OutMedia;
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UINT m_RenderingDevice; // device id used for playback
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IRTPSession *m_Net;
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IRTPRecv *m_pIRTPRecv;
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//BufferPool *m_NetBufferPool;
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DWORD m_ThreadFlags;
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DWORD m_DPFlags;
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BOOL m_fReceiving;
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DWORD m_PlaybackTimestamp; // last played sample
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HANDLE m_hRecvThreadStopEvent;
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HANDLE m_hRenderingThread;
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DWORD m_RenderingThId;
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UINT m_nRecvBuffersPending;
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DWORD m_dwSrcSize;
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FLOWSPEC m_flowspec;
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HRESULT SetFlowSpec();
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public:
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RecvMediaStream(){};
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virtual HRESULT Initialize(DataPump *) = 0;
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virtual BOOL IsEmpty() = 0;
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// Implementation of IMediaChannel::GetState
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STDMETHODIMP_(DWORD) GetState()
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{
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if (m_DPFlags & DPFLAG_STARTED_RECV) return MSSTATE_STARTED;
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else if (m_DPFlags & DPFLAG_CONFIGURED_RECV) return MSSTATE_CONFIGURED;
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else return MSSTATE_UNCONFIGURED;
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}
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virtual HRESULT RTPCallback(WSABUF *pWsaBuf, DWORD timestamp, UINT seq, UINT fMark)=0;
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virtual HRESULT GetCurrentPlayNTPTime(NTP_TS *)=0;
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virtual HRESULT StartRecv(HWND)=0;
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virtual HRESULT StopRecv()=0;
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virtual HRESULT STDMETHODCALLTYPE SetNetworkInterface(IUnknown *pUnknown);
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virtual HRESULT DTMFBeep() {return S_OK;}
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virtual HRESULT OnDTMFBeep() {return S_OK;}
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};
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class SendVideoStream : public SendMediaStream, public IVideoRender,
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public IVideoChannel
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{
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friend class DataPump;
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protected:
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CCaptureChain* m_pCaptureChain;
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VIDEOFORMATEX m_fDevSend;
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VIDEOFORMATEX m_fCodecOutput;
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RECT m_cliprect;
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DWORD m_maxfps;
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DWORD m_frametime;
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int *m_pTSTable; // NULL if table isn't used
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DWORD m_dwCurrentTSSetting;
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VcmFilter *m_pVideoFilter;
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IUnknown *m_pIUnknown; // Pointer to IUnkown from which we'll query the Stream Signal interface
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class MediaPacket *m_pNextPacketToRender; // current recv video frame
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UINT m_cRendering; // count of packets given out by GetFrame()
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HANDLE m_hRenderEvent; // IVideoRender event for recv notification
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LPFNFRAMEREADY m_pfFrameReadyCallback; // callback function
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CRITICAL_SECTION m_crs;
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CRITICAL_SECTION m_crsVidQoS; // Allows QoS thread to read the video statistics while capture and compression are running
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// the capture thread (and it's launch function)
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static DWORD CALLBACK StartCaptureThread(LPVOID pVoid);
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DWORD CapturingThread();
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HRESULT SendPacket(VideoPacket *pVP, UINT *puBytesSent);
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STDMETHODIMP_(void) UnConfigure(void);
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LONG m_lRefCount;
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public:
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SendVideoStream(): SendMediaStream(){m_Net=NULL; m_lRefCount=0; };
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virtual ~SendVideoStream();
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// IUnknown
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
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virtual ULONG STDMETHODCALLTYPE AddRef(void);
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virtual ULONG STDMETHODCALLTYPE Release(void);
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// IMediaChannel APIs
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// new version of Configure()
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HRESULT STDMETHODCALLTYPE Configure(
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BYTE *pFormat,
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UINT cbFormat,
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BYTE *pChannelParams,
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UINT cbParams,
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IUnknown *pUnknown);
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STDMETHODIMP Start(void);
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STDMETHODIMP Stop(void);
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HRESULT STDMETHODCALLTYPE SetNetworkInterface(IUnknown *pUnknown)
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{
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return SendMediaStream::SetNetworkInterface(pUnknown);
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}
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STDMETHODIMP_(DWORD) GetState()
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{
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return SendMediaStream::GetState();
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}
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HRESULT STDMETHODCALLTYPE SetMaxBitrate(UINT uMaxBitrate);
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// IVideoChannel
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virtual HRESULT __stdcall SetTemporalSpatialTradeOff(DWORD dwVal);
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virtual HRESULT __stdcall GetTemporalSpatialTradeOff(DWORD *pdwVal);
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virtual HRESULT __stdcall SendKeyFrame(void);
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virtual HRESULT __stdcall ShowDeviceDialog(DWORD dwFlags);
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virtual HRESULT __stdcall GetDeviceDialog(DWORD *pdwFlags);
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// IProperty methods
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STDMETHODIMP GetProperty(DWORD dwProp, PVOID pBuf, LPUINT pcbBuf);
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STDMETHODIMP SetProperty(DWORD dwProp, PVOID pBuf, UINT cbBuf);
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// IVideoRender methods
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STDMETHODIMP Init( DWORD_PTR dwUser, LPFNFRAMEREADY pfCallback);
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STDMETHODIMP Done(void);
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STDMETHODIMP GetFrame(FRAMECONTEXT* pfc);
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STDMETHODIMP ReleaseFrame(FRAMECONTEXT *pfc);
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// Other virtual methods
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virtual HRESULT Initialize(DataPump *);
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// Non virtual methods
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static HRESULT CALLBACK QosNotifyVideoCB(LPRESOURCEREQUESTLIST lpResourceRequestList, DWORD_PTR dwThis);
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void UnConfigureSendVideo(BOOL fNewDeviceSettings, BOOL fNewDevice);
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void StartCPUUsageCollection(void);
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BOOL GetCPUUsage(PDWORD pdwOverallCPUUsage);
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void StopCPUUsageCollection(void);
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BOOL SetTargetRates(DWORD dwTargetFrameRate, DWORD dwTargetBitrate);
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DWORD Send();
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void EndSend();
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};
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class RecvVideoStream : public RecvMediaStream, public IVideoRender {
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friend class DataPump;
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protected:
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VIDEOFORMATEX m_fDevRecv;
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RECT m_cliprect;
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class MediaPacket *m_pNextPacketToRender; // current recv video frame
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UINT m_cRendering; // count of packets given out by GetFrame()
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HANDLE m_hRenderEvent; // IVideoRender event for recv notification
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LPFNFRAMEREADY m_pfFrameReadyCallback; // callback function
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CRITICAL_SECTION m_crs;
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VcmFilter *m_pVideoFilter;
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IUnknown *m_pIUnknown; // Pointer to IUnkown from which we'll query the Stream Signal interface
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IStreamSignal *m_pIStreamSignal; // Pointer to I-Frame request interface
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CRITICAL_SECTION m_crsIStreamSignal; // Used to serialize access to the interface between Stop() and the RTP callback
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UINT m_ulLastSeq; // Last received RTP sequence number
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DWORD m_dwLastIFrameRequest; // When was the last I-frame request sent? Used to make sure we don't send requests too often
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BOOL m_fDiscontinuity; // Signals that a discontinuity (RTP packet lost or receive frame buffer overflow) was detected
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CRITICAL_SECTION m_crsVidQoS; // Allows QoS thread to read the video statistics while capture and compression are running
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static DWORD CALLBACK StartRenderingThread(PVOID pVoid);
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DWORD RenderingThread();
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STDMETHODIMP_(void) UnConfigure(void);
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LONG m_lRefCount;
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public:
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RecvVideoStream() : RecvMediaStream(){m_Net=NULL; m_lRefCount=0; };
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virtual ~RecvVideoStream();
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// IUnknown
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
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virtual ULONG STDMETHODCALLTYPE AddRef(void);
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virtual ULONG STDMETHODCALLTYPE Release(void);
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// IMediaChannel APIs
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HRESULT STDMETHODCALLTYPE Configure(
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BYTE *pFormat,
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UINT cbFormat,
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BYTE *pChannelParams,
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UINT cbParams,
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IUnknown *pUnknown);
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STDMETHODIMP Start(void);
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STDMETHODIMP Stop(void);
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HRESULT STDMETHODCALLTYPE SetMaxBitrate(UINT uMaxBitrate)
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{
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return E_NOTIMPL;
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}
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// IProperty methods
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STDMETHODIMP GetProperty(DWORD dwProp, PVOID pBuf, LPUINT pcbBuf);
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STDMETHODIMP SetProperty(DWORD dwProp, PVOID pBuf, UINT cbBuf);
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// IVideoRender methods
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STDMETHODIMP Init( DWORD_PTR dwUser, LPFNFRAMEREADY pfCallback);
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STDMETHODIMP Done(void);
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STDMETHODIMP GetFrame(FRAMECONTEXT* pfc);
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STDMETHODIMP ReleaseFrame(FRAMECONTEXT *pfc);
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// Other virtual methods
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virtual HRESULT Initialize(DataPump *);
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virtual BOOL IsEmpty();
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HRESULT GetCurrentPlayNTPTime(NTP_TS *);
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virtual HRESULT StartRecv(HWND);
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virtual HRESULT StopRecv();
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virtual HRESULT RTPCallback(WSABUF *pWsaBuf, DWORD timestamp, UINT seq, UINT fMark);
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// Non virtual methods
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};
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extern char LogScale[];
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class AudioSilenceDetector {
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private:
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UINT m_uManualSilenceLevel; // silence level in unit of 1/1000
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DWORD m_dwMaxStrength; // signal strength in units of 1/1000
|
|||
|
|
INT m_iSilenceLevel; // adaptive silence threshold
|
|||
|
|
INT m_iSilenceAvg; // scale factor 256
|
|||
|
|
INT m_iTalkAvg; // average strength of non-silent signal
|
|||
|
|
|
|||
|
|
public:
|
|||
|
|
AudioSilenceDetector();
|
|||
|
|
void SetSilenceLevel(UINT level) {m_uManualSilenceLevel = level;}
|
|||
|
|
UINT GetSilenceLevel(void) {return m_uManualSilenceLevel;}
|
|||
|
|
UINT GetSignalStrength(void) {return LogScale[m_dwMaxStrength >> 8];}
|
|||
|
|
BOOL SilenceDetect(WORD strength);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
class SendAudioStream : public SendMediaStream, public IAudioChannel, public IDTMFSend
|
|||
|
|
{
|
|||
|
|
friend class DataPump;
|
|||
|
|
private:
|
|||
|
|
WAVEFORMATEX m_fDevSend;
|
|||
|
|
WAVEFORMATEX m_wfCompressed;
|
|||
|
|
AcmFilter *m_pAudioFilter; // this will replace m_fSendFilter
|
|||
|
|
MMIOSRC m_mmioSrc;
|
|||
|
|
AudioSilenceDetector m_AudioMonitor;
|
|||
|
|
BOOL m_bAutoMix;
|
|||
|
|
|
|||
|
|
static DWORD CALLBACK StartRecordingThread (LPVOID pVoid);
|
|||
|
|
DWORD RecordingThread();
|
|||
|
|
|
|||
|
|
HRESULT SendPacket(AudioPacket *pAP, UINT *puBytesSent);
|
|||
|
|
STDMETHODIMP_(void) UnConfigure(void);
|
|||
|
|
|
|||
|
|
LONG m_lRefCount;
|
|||
|
|
|
|||
|
|
DTMFQueue *m_pDTMF;
|
|||
|
|
HRESULT __stdcall SendDTMF();
|
|||
|
|
|
|||
|
|
public:
|
|||
|
|
SendAudioStream() : SendMediaStream(){m_Net=NULL;m_lRefCount=0;};
|
|||
|
|
virtual ~SendAudioStream();
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IUnknown
|
|||
|
|
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
|
|||
|
|
virtual ULONG STDMETHODCALLTYPE AddRef(void);
|
|||
|
|
virtual ULONG STDMETHODCALLTYPE Release(void);
|
|||
|
|
|
|||
|
|
// IMediaChannel APIs
|
|||
|
|
// new version of Configure()
|
|||
|
|
HRESULT STDMETHODCALLTYPE Configure(
|
|||
|
|
BYTE *pFormat,
|
|||
|
|
UINT cbFormat,
|
|||
|
|
BYTE *pChannelParams,
|
|||
|
|
UINT cbParams,
|
|||
|
|
IUnknown *pUnknown);
|
|||
|
|
|
|||
|
|
STDMETHODIMP Start(void);
|
|||
|
|
STDMETHODIMP Stop(void);
|
|||
|
|
|
|||
|
|
HRESULT STDMETHODCALLTYPE SetNetworkInterface(IUnknown *pUnknown)
|
|||
|
|
{
|
|||
|
|
return SendMediaStream::SetNetworkInterface(pUnknown);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
STDMETHODIMP_(DWORD) GetState()
|
|||
|
|
{
|
|||
|
|
return SendMediaStream::GetState();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
HRESULT STDMETHODCALLTYPE SetMaxBitrate(UINT uMaxBitrate);
|
|||
|
|
|
|||
|
|
// IAudioChannel
|
|||
|
|
STDMETHODIMP GetSignalLevel(UINT *pSignalStrength);
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IDTMFSend
|
|||
|
|
virtual HRESULT __stdcall AddDigit(int nDigit);
|
|||
|
|
virtual HRESULT __stdcall ResetDTMF();
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IProperty methods
|
|||
|
|
STDMETHODIMP GetProperty(DWORD dwProp, PVOID pBuf, LPUINT pcbBuf);
|
|||
|
|
STDMETHODIMP SetProperty(DWORD dwProp, PVOID pBuf, UINT cbBuf);
|
|||
|
|
|
|||
|
|
// Other virtual methods
|
|||
|
|
virtual HRESULT Initialize(DataPump *pdp);
|
|||
|
|
|
|||
|
|
// Non virtual methods
|
|||
|
|
static HRESULT CALLBACK QosNotifyAudioCB(LPRESOURCEREQUESTLIST lpResourceRequestList, DWORD_PTR dwThis);
|
|||
|
|
|
|||
|
|
HRESULT OpenSrcFile (void);
|
|||
|
|
HRESULT CloseSrcFile (void);
|
|||
|
|
DWORD Send();
|
|||
|
|
void EndSend();
|
|||
|
|
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
class RecvAudioStream : public RecvMediaStream, public IAudioChannel
|
|||
|
|
{
|
|||
|
|
friend class DataPump;
|
|||
|
|
private:
|
|||
|
|
WAVEFORMATEX m_fDevRecv;
|
|||
|
|
IAppAudioCap* m_pAudioCaps; // pointer to the audio capabilities object
|
|||
|
|
// mmio file operations
|
|||
|
|
MMIODEST m_mmioDest;
|
|||
|
|
|
|||
|
|
AcmFilter *m_pAudioFilter; // this will replace m_fSendFilter
|
|||
|
|
|
|||
|
|
AudioSilenceDetector m_AudioMonitor;
|
|||
|
|
|
|||
|
|
CRITICAL_SECTION m_crsAudQoS; // Allows QoS thread to read the audio statistics while recording and compression are running
|
|||
|
|
|
|||
|
|
static DWORD CALLBACK StartPlaybackThread(LPVOID pVoid);
|
|||
|
|
DWORD PlaybackThread();
|
|||
|
|
|
|||
|
|
STDMETHODIMP_(void) UnConfigure(void);
|
|||
|
|
|
|||
|
|
LONG m_lRefCount;
|
|||
|
|
|
|||
|
|
virtual HRESULT DTMFBeep();
|
|||
|
|
|
|||
|
|
|
|||
|
|
public:
|
|||
|
|
RecvAudioStream() :RecvMediaStream(){m_Net=NULL;m_lRefCount=0;};
|
|||
|
|
virtual ~RecvAudioStream();
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IUnknown
|
|||
|
|
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject);
|
|||
|
|
virtual ULONG STDMETHODCALLTYPE AddRef(void);
|
|||
|
|
virtual ULONG STDMETHODCALLTYPE Release(void);
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IMediaChannel APIs
|
|||
|
|
HRESULT STDMETHODCALLTYPE Configure(
|
|||
|
|
BYTE *pFormat,
|
|||
|
|
UINT cbFormat,
|
|||
|
|
BYTE *pChannelParams,
|
|||
|
|
UINT cbParams,
|
|||
|
|
IUnknown *pUnknown);
|
|||
|
|
|
|||
|
|
|
|||
|
|
STDMETHODIMP Start(void);
|
|||
|
|
STDMETHODIMP Stop(void);
|
|||
|
|
|
|||
|
|
HRESULT STDMETHODCALLTYPE SetNetworkInterface(IUnknown *pUnknown)
|
|||
|
|
{
|
|||
|
|
return RecvMediaStream::SetNetworkInterface(pUnknown);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
STDMETHODIMP_(DWORD) GetState()
|
|||
|
|
{
|
|||
|
|
return RecvMediaStream::GetState();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
HRESULT STDMETHODCALLTYPE SetMaxBitrate(UINT uMaxBitrate)
|
|||
|
|
{
|
|||
|
|
return E_NOTIMPL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// IAudioChannel
|
|||
|
|
STDMETHODIMP GetSignalLevel(UINT *pSignalStrength);
|
|||
|
|
|
|||
|
|
|
|||
|
|
// IProperty methods
|
|||
|
|
STDMETHODIMP GetProperty(DWORD dwProp, PVOID pBuf, LPUINT pcbBuf);
|
|||
|
|
STDMETHODIMP SetProperty(DWORD dwProp, PVOID pBuf, UINT cbBuf);
|
|||
|
|
|
|||
|
|
// Other virtual inherited methods
|
|||
|
|
virtual HRESULT Initialize(DataPump *);
|
|||
|
|
virtual BOOL IsEmpty();
|
|||
|
|
HRESULT GetCurrentPlayNTPTime(NTP_TS *);
|
|||
|
|
virtual HRESULT StartRecv(HWND);
|
|||
|
|
virtual HRESULT StopRecv();
|
|||
|
|
|
|||
|
|
virtual HRESULT RTPCallback(WSABUF *pWsaBuf, DWORD timestamp, UINT seq, UINT fMark);
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
#include <poppack.h> /* End byte packing */
|
|||
|
|
|
|||
|
|
|
|||
|
|
#endif // _MEDISTRM_H_
|
|||
|
|
|