1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/directshow/AudioSinkFilter.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,94 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#if !defined(AudioSinkFilter_h_)
1.11 +#define AudioSinkFilter_h_
1.12 +
1.13 +#include "BaseFilter.h"
1.14 +#include "DirectShowUtils.h"
1.15 +#include "nsAutoPtr.h"
1.16 +#include "mozilla/RefPtr.h"
1.17 +
1.18 +namespace mozilla {
1.19 +
1.20 +class AudioSinkInputPin;
1.21 +class SampleSink;
1.22 +
1.23 +// Filter that acts as the end of the graph. Audio samples input into
1.24 +// this filter block the calling thread, and the calling thread is
1.25 +// unblocked when the decode thread extracts the sample. The samples
1.26 +// input into this filter are stored in the SampleSink, where the blocking
1.27 +// is implemented. The input pin owns the SampleSink.
1.28 +class AudioSinkFilter: public mozilla::media::BaseFilter,
1.29 + public IMediaSeeking
1.30 +{
1.31 +
1.32 +public:
1.33 + AudioSinkFilter(const wchar_t* aObjectName, HRESULT* aOutResult);
1.34 + virtual ~AudioSinkFilter();
1.35 +
1.36 + // Gets the input pin's sample sink.
1.37 + SampleSink* GetSampleSink();
1.38 +
1.39 + // IUnknown implementation.
1.40 + STDMETHODIMP QueryInterface(REFIID aIId, void **aInterface);
1.41 + STDMETHODIMP_(ULONG) AddRef();
1.42 + STDMETHODIMP_(ULONG) Release();
1.43 +
1.44 + // --------------------------------------------------------------------
1.45 + // CBaseFilter methods
1.46 + int GetPinCount ();
1.47 + mozilla::media::BasePin* GetPin ( IN int Index);
1.48 + STDMETHODIMP Pause ();
1.49 + STDMETHODIMP Stop ();
1.50 + STDMETHODIMP GetClassID ( OUT CLSID * pCLSID);
1.51 + STDMETHODIMP Run(REFERENCE_TIME tStart);
1.52 + // IMediaSeeking Methods...
1.53 +
1.54 + // We defer to SourceFilter, but we must expose the interface on
1.55 + // the output pins. Seeking commands come upstream from the renderers,
1.56 + // but they must be actioned at the source filters.
1.57 + STDMETHODIMP GetCapabilities(DWORD* aCapabilities);
1.58 + STDMETHODIMP CheckCapabilities(DWORD* aCapabilities);
1.59 + STDMETHODIMP IsFormatSupported(const GUID* aFormat);
1.60 + STDMETHODIMP QueryPreferredFormat(GUID* aFormat);
1.61 + STDMETHODIMP GetTimeFormat(GUID* aFormat);
1.62 + STDMETHODIMP IsUsingTimeFormat(const GUID* aFormat);
1.63 + STDMETHODIMP SetTimeFormat(const GUID* aFormat);
1.64 + STDMETHODIMP GetDuration(LONGLONG* pDuration);
1.65 + STDMETHODIMP GetStopPosition(LONGLONG* pStop);
1.66 + STDMETHODIMP GetCurrentPosition(LONGLONG* aCurrent);
1.67 + STDMETHODIMP ConvertTimeFormat(LONGLONG* aTarget,
1.68 + const GUID* aTargetFormat,
1.69 + LONGLONG aSource,
1.70 + const GUID* aSourceFormat);
1.71 + STDMETHODIMP SetPositions(LONGLONG* aCurrent,
1.72 + DWORD aCurrentFlags,
1.73 + LONGLONG* aStop,
1.74 + DWORD aStopFlags);
1.75 + STDMETHODIMP GetPositions(LONGLONG* aCurrent,
1.76 + LONGLONG* aStop);
1.77 + STDMETHODIMP GetAvailable(LONGLONG* aEarliest,
1.78 + LONGLONG* aLatest);
1.79 + STDMETHODIMP SetRate(double aRate);
1.80 + STDMETHODIMP GetRate(double* aRate);
1.81 + STDMETHODIMP GetPreroll(LONGLONG* aPreroll);
1.82 +
1.83 + // --------------------------------------------------------------------
1.84 + // class factory calls this
1.85 + static IUnknown * CreateInstance (IN LPUNKNOWN punk, OUT HRESULT * phr);
1.86 +
1.87 +private:
1.88 + CriticalSection mFilterCritSec;
1.89 +
1.90 + // Note: The input pin defers its refcounting to the sink filter, so when
1.91 + // the input pin is addrefed, what actually happens is the sink filter is
1.92 + // addrefed.
1.93 + nsAutoPtr<AudioSinkInputPin> mInputPin;
1.94 +};
1.95 +
1.96 +} // namespace mozilla
1.97 +#endif // AudioSinkFilter_h_
