mediafilter.h
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/* akvirtualcamera, virtual camera for Mac and Windows.
* Copyright (C) 2020 Gonzalo Exequiel Pedone
*
* akvirtualcamera is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* akvirtualcamera is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with akvirtualcamera. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#ifndef MEDIAFILTER_H
#define MEDIAFILTER_H
#include <strmif.h>
#include "persistpropertybag.h"
namespace AkVCam
{
class MediaFilterPrivate;
typedef HRESULT (*StateChangedCallbackT)(void *userData,
FILTER_STATE state);
class MediaFilter:
public IMediaFilter,
public PersistPropertyBag
{
public:
MediaFilter(REFIID classCLSID, IBaseFilter *baseFilter);
virtual ~MediaFilter();
void connectStateChanged(void *userData,
StateChangedCallbackT callback);
void disconnectStateChanged(void *userData,
StateChangedCallbackT callback);
DECLARE_IPERSISTPROPERTYBAG(IID_IMediaFilter)
// IMediaFilter
HRESULT STDMETHODCALLTYPE Stop();
HRESULT STDMETHODCALLTYPE Pause();
HRESULT STDMETHODCALLTYPE Run(REFERENCE_TIME tStart);
HRESULT STDMETHODCALLTYPE GetState(DWORD dwMilliSecsTimeout,
FILTER_STATE *State);
HRESULT STDMETHODCALLTYPE SetSyncSource(IReferenceClock *pClock);
HRESULT STDMETHODCALLTYPE GetSyncSource(IReferenceClock **pClock);
private:
MediaFilterPrivate *d;
protected:
virtual void stateChanged(FILTER_STATE state);
};
}
#define DECLARE_IMEDIAFILTER_NQ \
DECLARE_IPERSISTPROPERTYBAG_NQ \
\
void connectStateChanged(void *userData, \
StateChangedCallbackT callback) \
{ \
MediaFilter::connectStateChanged(userData, callback); \
} \
\
void disconnectStateChanged(void *userData, \
StateChangedCallbackT callback) \
{ \
MediaFilter::disconnectStateChanged(userData, callback); \
} \
\
HRESULT STDMETHODCALLTYPE Stop() \
{ \
return MediaFilter::Stop(); \
} \
\
HRESULT STDMETHODCALLTYPE Pause() \
{ \
return MediaFilter::Pause(); \
} \
\
HRESULT STDMETHODCALLTYPE Run(REFERENCE_TIME tStart) \
{ \
return MediaFilter::Run(tStart); \
} \
\
HRESULT STDMETHODCALLTYPE GetState(DWORD dwMilliSecsTimeout, \
FILTER_STATE *State) \
{ \
return MediaFilter::GetState(dwMilliSecsTimeout, State); \
} \
\
HRESULT STDMETHODCALLTYPE SetSyncSource(IReferenceClock *pClock) \
{ \
return MediaFilter::SetSyncSource(pClock); \
} \
\
HRESULT STDMETHODCALLTYPE GetSyncSource(IReferenceClock **pClock) \
{ \
return MediaFilter::GetSyncSource(pClock); \
}
#define DECLARE_IMEDIAFILTER(interfaceIid) \
DECLARE_IPERSISTPROPERTYBAG_Q(interfaceIid) \
DECLARE_IMEDIAFILTER_NQ
#endif // MEDIAFILTER_H