michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #if !defined(AudioSinkFilter_h_)
michael@0: #define AudioSinkFilter_h_
michael@0: 
michael@0: #include "BaseFilter.h"
michael@0: #include "DirectShowUtils.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "mozilla/RefPtr.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class AudioSinkInputPin;
michael@0: class SampleSink;
michael@0: 
michael@0: // Filter that acts as the end of the graph. Audio samples input into
michael@0: // this filter block the calling thread, and the calling thread is
michael@0: // unblocked when the decode thread extracts the sample. The samples
michael@0: // input into this filter are stored in the SampleSink, where the blocking
michael@0: // is implemented. The input pin owns the SampleSink.
michael@0: class AudioSinkFilter: public mozilla::media::BaseFilter,
michael@0:                        public IMediaSeeking
michael@0: {
michael@0: 
michael@0: public:
michael@0:   AudioSinkFilter(const wchar_t* aObjectName, HRESULT* aOutResult);
michael@0:   virtual ~AudioSinkFilter();
michael@0: 
michael@0:   // Gets the input pin's sample sink.
michael@0:   SampleSink* GetSampleSink();
michael@0: 
michael@0:   // IUnknown implementation.
michael@0:   STDMETHODIMP QueryInterface(REFIID aIId, void **aInterface);
michael@0:   STDMETHODIMP_(ULONG) AddRef();
michael@0:   STDMETHODIMP_(ULONG) Release();
michael@0: 
michael@0:   //  --------------------------------------------------------------------
michael@0:   //  CBaseFilter methods
michael@0:   int GetPinCount ();
michael@0:   mozilla::media::BasePin* GetPin ( IN int Index);
michael@0:   STDMETHODIMP Pause ();
michael@0:   STDMETHODIMP Stop ();
michael@0:   STDMETHODIMP GetClassID ( OUT CLSID * pCLSID);
michael@0:   STDMETHODIMP Run(REFERENCE_TIME tStart);
michael@0:   // IMediaSeeking Methods...
michael@0: 
michael@0:   // We defer to SourceFilter, but we must expose the interface on
michael@0:   // the output pins. Seeking commands come upstream from the renderers,
michael@0:   // but they must be actioned at the source filters.
michael@0:   STDMETHODIMP GetCapabilities(DWORD* aCapabilities);
michael@0:   STDMETHODIMP CheckCapabilities(DWORD* aCapabilities);
michael@0:   STDMETHODIMP IsFormatSupported(const GUID* aFormat);
michael@0:   STDMETHODIMP QueryPreferredFormat(GUID* aFormat);
michael@0:   STDMETHODIMP GetTimeFormat(GUID* aFormat);
michael@0:   STDMETHODIMP IsUsingTimeFormat(const GUID* aFormat);
michael@0:   STDMETHODIMP SetTimeFormat(const GUID* aFormat);
michael@0:   STDMETHODIMP GetDuration(LONGLONG* pDuration);
michael@0:   STDMETHODIMP GetStopPosition(LONGLONG* pStop);
michael@0:   STDMETHODIMP GetCurrentPosition(LONGLONG* aCurrent);
michael@0:   STDMETHODIMP ConvertTimeFormat(LONGLONG* aTarget,
michael@0:                                  const GUID* aTargetFormat,
michael@0:                                  LONGLONG aSource,
michael@0:                                  const GUID* aSourceFormat);
michael@0:   STDMETHODIMP SetPositions(LONGLONG* aCurrent,
michael@0:                             DWORD aCurrentFlags,
michael@0:                             LONGLONG* aStop,
michael@0:                             DWORD aStopFlags);
michael@0:   STDMETHODIMP GetPositions(LONGLONG* aCurrent,
michael@0:                             LONGLONG* aStop);
michael@0:   STDMETHODIMP GetAvailable(LONGLONG* aEarliest,
michael@0:                             LONGLONG* aLatest);
michael@0:   STDMETHODIMP SetRate(double aRate);
michael@0:   STDMETHODIMP GetRate(double* aRate);
michael@0:   STDMETHODIMP GetPreroll(LONGLONG* aPreroll);
michael@0: 
michael@0:   //  --------------------------------------------------------------------
michael@0:   //  class factory calls this
michael@0:   static IUnknown * CreateInstance (IN LPUNKNOWN punk, OUT HRESULT * phr);
michael@0: 
michael@0: private:
michael@0:   CriticalSection mFilterCritSec;
michael@0: 
michael@0:   // Note: The input pin defers its refcounting to the sink filter, so when
michael@0:   // the input pin is addrefed, what actually happens is the sink filter is
michael@0:   // addrefed.
michael@0:   nsAutoPtr<AudioSinkInputPin> mInputPin;
michael@0: };
michael@0: 
michael@0: } // namespace mozilla
michael@0: #endif // AudioSinkFilter_h_