mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-09-24 15:54:12 +00:00
216 lines
No EOL
7.7 KiB
C++
216 lines
No EOL
7.7 KiB
C++
#ifndef _AUDIOSWITCH_H
|
|
#define _AUDIOSWITCH_H
|
|
|
|
#include <streams.h>
|
|
|
|
class CAudioSwitchRenderer;
|
|
class CAudioSwitchRendererInputPin;
|
|
|
|
class CAudioSwitchRendererInputPin : public CBaseInputPin
|
|
{
|
|
protected:
|
|
CAudioSwitchRenderer *m_pRenderer;
|
|
CMediaType m_mt;
|
|
|
|
public:
|
|
HRESULT NotifyMediaType();
|
|
|
|
CAudioSwitchRendererInputPin(CAudioSwitchRenderer *pRenderer,
|
|
HRESULT *phr,
|
|
LPCWSTR Name);
|
|
|
|
// Overriden from the base pin classes
|
|
|
|
HRESULT BreakConnect();
|
|
HRESULT CompleteConnect(IPin *pReceivePin);
|
|
HRESULT SetMediaType(const CMediaType *pmt);
|
|
HRESULT CheckMediaType(const CMediaType *pmt);
|
|
HRESULT Active();
|
|
HRESULT Inactive();
|
|
|
|
// Add rendering behaviour to interface functions
|
|
|
|
STDMETHODIMP QueryId(LPWSTR *Id);
|
|
STDMETHODIMP EndOfStream();
|
|
STDMETHODIMP BeginFlush();
|
|
STDMETHODIMP EndFlush();
|
|
STDMETHODIMP Receive(IMediaSample *pMediaSample);
|
|
|
|
// Helper
|
|
IMemAllocator inline *Allocator() const
|
|
{
|
|
return m_pAllocator;
|
|
}
|
|
};
|
|
|
|
|
|
class CAudioSwitchRenderer : public CBaseFilter
|
|
{
|
|
protected:
|
|
|
|
friend class CAudioSwitchRendererInputPin;
|
|
|
|
friend void CALLBACK EndOfStreamTimer(UINT uID, // Timer identifier
|
|
UINT uMsg, // Not currently used
|
|
DWORD_PTR dwUser, // User information
|
|
DWORD_PTR dw1, // Windows reserved
|
|
DWORD_PTR dw2); // Is also reserved
|
|
|
|
CRendererPosPassThru *m_pPosition; // Media seeking pass by object
|
|
CAMEvent m_RenderEvent; // Used to signal timer events
|
|
CAMEvent m_ThreadSignal; // Signalled to release worker thread
|
|
CAMEvent m_evComplete; // Signalled when state complete
|
|
BOOL m_bAbort; // Stop us from rendering more data
|
|
BOOL m_bStreaming; // Are we currently streaming
|
|
DWORD_PTR m_dwAdvise; // Timer advise cookie
|
|
IMediaSample *m_pMediaSample[16]; // Current image media samples
|
|
BOOL m_bEOS; // Any more samples in the stream
|
|
BOOL m_bEOSDelivered; // Have we delivered an EC_COMPLETE
|
|
CAudioSwitchRendererInputPin *m_pInputPin[16]; // Our renderer input pin objects
|
|
CCritSec m_InterfaceLock; // Critical section for interfaces
|
|
CCritSec m_RendererLock; // Controls access to internals
|
|
IQualityControl * m_pQSink; // QualityControl sink
|
|
BOOL m_bRepaintStatus; // Can we signal an EC_REPAINT
|
|
// Avoid some deadlocks by tracking filter during stop
|
|
volatile BOOL m_bInReceive; // Inside Receive between PrepareReceive
|
|
// And actually processing the sample
|
|
REFERENCE_TIME m_SignalTime; // Time when we signal EC_COMPLETE
|
|
UINT m_EndOfStreamTimer; // Used to signal end of stream
|
|
int m_inputSelected; // input selected for rendering (0 to 16)
|
|
|
|
public:
|
|
|
|
CAudioSwitchRenderer(REFCLSID RenderClass, // CLSID for this renderer
|
|
TCHAR *pName, // Debug ONLY description
|
|
LPUNKNOWN pUnk, // Aggregated owner object
|
|
HRESULT *phr); // General OLE return code
|
|
|
|
virtual ~CAudioSwitchRenderer();
|
|
|
|
// Overriden to say what interfaces we support and where
|
|
|
|
virtual HRESULT GetMediaPositionInterface(REFIID riid,void **ppv);
|
|
STDMETHODIMP NonDelegatingQueryInterface(REFIID, void **);
|
|
|
|
virtual HRESULT SourceThreadCanWait(BOOL bCanWait);
|
|
|
|
#ifdef DEBUG
|
|
// Debug only dump of the renderer state
|
|
void DisplayRendererState();
|
|
#endif
|
|
virtual HRESULT WaitForRenderTime();
|
|
virtual HRESULT CompleteStateChange(FILTER_STATE OldState);
|
|
|
|
// Return internal information about this filter
|
|
|
|
BOOL IsEndOfStream() { return m_bEOS; };
|
|
BOOL IsEndOfStreamDelivered() { return m_bEOSDelivered; };
|
|
BOOL IsStreaming() { return m_bStreaming; };
|
|
void SetAbortSignal(BOOL bAbort) { m_bAbort = bAbort; };
|
|
CAMEvent *GetRenderEvent() { return &m_RenderEvent; };
|
|
|
|
// Permit access to the transition state
|
|
|
|
void Ready() { m_evComplete.Set(); };
|
|
void NotReady() { m_evComplete.Reset(); };
|
|
BOOL CheckReady() { return m_evComplete.Check(); };
|
|
|
|
virtual int GetPinCount();
|
|
virtual CBasePin *GetPin(int n);
|
|
FILTER_STATE GetRealState();
|
|
void SendRepaint();
|
|
void SendNotifyWindow(IPin *pPin,HWND hwnd);
|
|
BOOL OnDisplayChange();
|
|
void SetRepaintStatus(BOOL bRepaint);
|
|
|
|
// Override the filter and pin interface functions
|
|
|
|
STDMETHODIMP Stop();
|
|
STDMETHODIMP Pause();
|
|
STDMETHODIMP Run(REFERENCE_TIME StartTime);
|
|
STDMETHODIMP GetState(DWORD dwMSecs,FILTER_STATE *State);
|
|
STDMETHODIMP FindPin(LPCWSTR Id, IPin **ppPin);
|
|
|
|
// These are available for a quality management implementation
|
|
|
|
virtual void OnRenderStart(IMediaSample *pMediaSample);
|
|
virtual void OnRenderEnd(IMediaSample *pMediaSample);
|
|
virtual HRESULT OnStartStreaming() { return NOERROR; };
|
|
virtual HRESULT OnStopStreaming() { return NOERROR; };
|
|
virtual void OnWaitStart() { };
|
|
virtual void OnWaitEnd() { };
|
|
virtual void PrepareRender() { };
|
|
|
|
#ifdef PERF
|
|
REFERENCE_TIME m_trRenderStart; // Just before we started drawing
|
|
// Set in OnRenderStart, Used in OnRenderEnd
|
|
int m_idBaseStamp; // MSR_id for frame time stamp
|
|
int m_idBaseRenderTime; // MSR_id for true wait time
|
|
int m_idBaseAccuracy; // MSR_id for time frame is late (int)
|
|
#endif
|
|
|
|
// Quality management implementation for scheduling rendering
|
|
|
|
virtual BOOL ScheduleSample(IMediaSample *pMediaSample);
|
|
virtual HRESULT GetSampleTimes(IMediaSample *pMediaSample,
|
|
REFERENCE_TIME *pStartTime,
|
|
REFERENCE_TIME *pEndTime);
|
|
|
|
virtual HRESULT ShouldDrawSampleNow(IMediaSample *pMediaSample,
|
|
REFERENCE_TIME *ptrStart,
|
|
REFERENCE_TIME *ptrEnd);
|
|
|
|
// Lots of end of stream complexities
|
|
|
|
void TimerCallback();
|
|
void ResetEndOfStreamTimer();
|
|
HRESULT NotifyEndOfStream();
|
|
virtual HRESULT SendEndOfStream();
|
|
virtual HRESULT ResetEndOfStream();
|
|
virtual HRESULT EndOfStream();
|
|
|
|
// Rendering is based around the clock
|
|
|
|
void SignalTimerFired();
|
|
virtual HRESULT CancelNotification();
|
|
virtual HRESULT ClearPendingSample();
|
|
|
|
// Called when the filter changes state
|
|
|
|
virtual HRESULT Active();
|
|
virtual HRESULT Inactive();
|
|
virtual HRESULT StartStreaming();
|
|
virtual HRESULT StopStreaming();
|
|
virtual HRESULT BeginFlush();
|
|
virtual HRESULT EndFlush();
|
|
|
|
// Deal with connections and type changes
|
|
|
|
virtual HRESULT BreakConnect();
|
|
virtual HRESULT SetMediaType(const CMediaType *pmt);
|
|
virtual HRESULT CompleteConnect(IPin *pReceivePin);
|
|
|
|
// These look after the handling of data samples
|
|
|
|
virtual HRESULT PrepareReceive(IMediaSample *pMediaSample);
|
|
virtual HRESULT Receive(IMediaSample *pMediaSample);
|
|
virtual BOOL HaveCurrentSample();
|
|
virtual IMediaSample *GetCurrentSample();
|
|
virtual HRESULT Render(IMediaSample *pMediaSample);
|
|
|
|
// Derived classes MUST override these
|
|
virtual HRESULT DoRenderSample(IMediaSample *pMediaSample) PURE;
|
|
virtual HRESULT CheckMediaType(const CMediaType *) PURE;
|
|
|
|
// Helper
|
|
void WaitForReceiveToComplete();
|
|
|
|
CAudioSwitchRendererInputPin *GetSelectedPin() { return m_pInputPin[m_inputSelected]; }
|
|
|
|
int GetConnectedInputsCount();
|
|
int GetSelectedInput();
|
|
void SetSelectedInput(int n);
|
|
};
|
|
|
|
|
|
#endif |