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