Sweden-Number/dlls/mf/samplegrabber.c

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/*
* Copyright 2019 Nikolay Sivov for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "mfapi.h"
#include "mfidl.h"
#include "mferror.h"
#include "mf_private.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(mfplat);
struct sample_grabber;
struct sample_grabber_stream
{
IMFStreamSink IMFStreamSink_iface;
IMFMediaTypeHandler IMFMediaTypeHandler_iface;
LONG refcount;
struct sample_grabber *sink;
IMFMediaEventQueue *event_queue;
};
struct sample_grabber
{
IMFMediaSink IMFMediaSink_iface;
IMFClockStateSink IMFClockStateSink_iface;
IMFMediaEventGenerator IMFMediaEventGenerator_iface;
LONG refcount;
IMFSampleGrabberSinkCallback *callback;
IMFMediaType *media_type;
BOOL is_shut_down;
struct sample_grabber_stream *stream;
IMFMediaEventQueue *event_queue;
IMFPresentationClock *clock;
CRITICAL_SECTION cs;
};
struct sample_grabber_activate_context
{
IMFMediaType *media_type;
IMFSampleGrabberSinkCallback *callback;
};
static void sample_grabber_free_private(void *user_context)
{
struct sample_grabber_activate_context *context = user_context;
IMFMediaType_Release(context->media_type);
IMFSampleGrabberSinkCallback_Release(context->callback);
heap_free(context);
}
static struct sample_grabber *impl_from_IMFMediaSink(IMFMediaSink *iface)
{
return CONTAINING_RECORD(iface, struct sample_grabber, IMFMediaSink_iface);
}
static struct sample_grabber *impl_from_IMFClockStateSink(IMFClockStateSink *iface)
{
return CONTAINING_RECORD(iface, struct sample_grabber, IMFClockStateSink_iface);
}
static struct sample_grabber *impl_from_IMFMediaEventGenerator(IMFMediaEventGenerator *iface)
{
return CONTAINING_RECORD(iface, struct sample_grabber, IMFMediaEventGenerator_iface);
}
static struct sample_grabber_stream *impl_from_IMFStreamSink(IMFStreamSink *iface)
{
return CONTAINING_RECORD(iface, struct sample_grabber_stream, IMFStreamSink_iface);
}
static struct sample_grabber_stream *impl_from_IMFMediaTypeHandler(IMFMediaTypeHandler *iface)
{
return CONTAINING_RECORD(iface, struct sample_grabber_stream, IMFMediaTypeHandler_iface);
}
static HRESULT WINAPI sample_grabber_stream_QueryInterface(IMFStreamSink *iface, REFIID riid, void **obj)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IMFStreamSink) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = &stream->IMFStreamSink_iface;
}
else if (IsEqualIID(riid, &IID_IMFMediaTypeHandler))
{
*obj = &stream->IMFMediaTypeHandler_iface;
}
else
{
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*obj);
return S_OK;
}
static ULONG WINAPI sample_grabber_stream_AddRef(IMFStreamSink *iface)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
ULONG refcount = InterlockedIncrement(&stream->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
return refcount;
}
static ULONG WINAPI sample_grabber_stream_Release(IMFStreamSink *iface)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
ULONG refcount = InterlockedDecrement(&stream->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
if (!refcount)
{
if (stream->sink)
IMFMediaSink_Release(&stream->sink->IMFMediaSink_iface);
if (stream->event_queue)
{
IMFMediaEventQueue_Shutdown(stream->event_queue);
IMFMediaEventQueue_Release(stream->event_queue);
}
heap_free(stream);
}
return refcount;
}
static HRESULT WINAPI sample_grabber_stream_GetEvent(IMFStreamSink *iface, DWORD flags, IMFMediaEvent **event)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %#x, %p.\n", iface, flags, event);
return IMFMediaEventQueue_GetEvent(stream->event_queue, flags, event);
}
static HRESULT WINAPI sample_grabber_stream_BeginGetEvent(IMFStreamSink *iface, IMFAsyncCallback *callback,
IUnknown *state)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %p, %p.\n", iface, callback, state);
return IMFMediaEventQueue_BeginGetEvent(stream->event_queue, callback, state);
}
static HRESULT WINAPI sample_grabber_stream_EndGetEvent(IMFStreamSink *iface, IMFAsyncResult *result,
IMFMediaEvent **event)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %p, %p.\n", iface, result, event);
return IMFMediaEventQueue_EndGetEvent(stream->event_queue, result, event);
}
static HRESULT WINAPI sample_grabber_stream_QueueEvent(IMFStreamSink *iface, MediaEventType event_type,
REFGUID ext_type, HRESULT hr, const PROPVARIANT *value)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %u, %s, %#x, %p.\n", iface, event_type, debugstr_guid(ext_type), hr, value);
return IMFMediaEventQueue_QueueEventParamVar(stream->event_queue, event_type, ext_type, hr, value);
}
static HRESULT WINAPI sample_grabber_stream_GetMediaSink(IMFStreamSink *iface, IMFMediaSink **sink)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %p.\n", iface, sink);
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
*sink = &stream->sink->IMFMediaSink_iface;
IMFMediaSink_AddRef(*sink);
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_GetIdentifier(IMFStreamSink *iface, DWORD *identifier)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %p.\n", iface, identifier);
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
*identifier = 0;
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_GetMediaTypeHandler(IMFStreamSink *iface, IMFMediaTypeHandler **handler)
{
struct sample_grabber_stream *stream = impl_from_IMFStreamSink(iface);
TRACE("%p, %p.\n", iface, handler);
if (!handler)
return E_POINTER;
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
*handler = &stream->IMFMediaTypeHandler_iface;
IMFMediaTypeHandler_AddRef(*handler);
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_ProcessSample(IMFStreamSink *iface, IMFSample *sample)
{
FIXME("%p, %p.\n", iface, sample);
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_stream_PlaceMarker(IMFStreamSink *iface, MFSTREAMSINK_MARKER_TYPE marker_type,
const PROPVARIANT *marker_value, const PROPVARIANT *context_value)
{
FIXME("%p, %d, %p, %p.\n", iface, marker_type, marker_value, context_value);
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_stream_Flush(IMFStreamSink *iface)
{
FIXME("%p.\n", iface);
return E_NOTIMPL;
}
static const IMFStreamSinkVtbl sample_grabber_stream_vtbl =
{
sample_grabber_stream_QueryInterface,
sample_grabber_stream_AddRef,
sample_grabber_stream_Release,
sample_grabber_stream_GetEvent,
sample_grabber_stream_BeginGetEvent,
sample_grabber_stream_EndGetEvent,
sample_grabber_stream_QueueEvent,
sample_grabber_stream_GetMediaSink,
sample_grabber_stream_GetIdentifier,
sample_grabber_stream_GetMediaTypeHandler,
sample_grabber_stream_ProcessSample,
sample_grabber_stream_PlaceMarker,
sample_grabber_stream_Flush,
};
static HRESULT WINAPI sample_grabber_stream_type_handler_QueryInterface(IMFMediaTypeHandler *iface, REFIID riid,
void **obj)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
return IMFStreamSink_QueryInterface(&stream->IMFStreamSink_iface, riid, obj);
}
static ULONG WINAPI sample_grabber_stream_type_handler_AddRef(IMFMediaTypeHandler *iface)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
return IMFStreamSink_AddRef(&stream->IMFStreamSink_iface);
}
static ULONG WINAPI sample_grabber_stream_type_handler_Release(IMFMediaTypeHandler *iface)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
return IMFStreamSink_Release(&stream->IMFStreamSink_iface);
}
static HRESULT WINAPI sample_grabber_stream_type_handler_IsMediaTypeSupported(IMFMediaTypeHandler *iface,
IMFMediaType *in_type, IMFMediaType **out_type)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
const DWORD supported_flags = MF_MEDIATYPE_EQUAL_MAJOR_TYPES | MF_MEDIATYPE_EQUAL_FORMAT_TYPES;
DWORD flags;
TRACE("%p, %p, %p.\n", iface, in_type, out_type);
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
if (!in_type)
return E_POINTER;
if (IMFMediaType_IsEqual(stream->sink->media_type, in_type, &flags) == S_OK)
return S_OK;
return (flags & supported_flags) == supported_flags ? S_OK : MF_E_INVALIDMEDIATYPE;
}
static HRESULT WINAPI sample_grabber_stream_type_handler_GetMediaTypeCount(IMFMediaTypeHandler *iface, DWORD *count)
{
TRACE("%p, %p.\n", iface, count);
if (!count)
return E_POINTER;
*count = 0;
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_type_handler_GetMediaTypeByIndex(IMFMediaTypeHandler *iface, DWORD index,
IMFMediaType **media_type)
{
TRACE("%p, %u, %p.\n", iface, index, media_type);
if (!media_type)
return E_POINTER;
return MF_E_NO_MORE_TYPES;
}
static HRESULT WINAPI sample_grabber_stream_type_handler_SetCurrentMediaType(IMFMediaTypeHandler *iface,
IMFMediaType *media_type)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
TRACE("%p, %p.\n", iface, media_type);
if (!media_type)
return E_POINTER;
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
IMFMediaType_Release(stream->sink->media_type);
stream->sink->media_type = media_type;
IMFMediaType_AddRef(stream->sink->media_type);
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_type_handler_GetCurrentMediaType(IMFMediaTypeHandler *iface,
IMFMediaType **media_type)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
TRACE("%p, %p.\n", iface, media_type);
if (!media_type)
return E_POINTER;
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
*media_type = stream->sink->media_type;
IMFMediaType_AddRef(*media_type);
return S_OK;
}
static HRESULT WINAPI sample_grabber_stream_type_handler_GetMajorType(IMFMediaTypeHandler *iface, GUID *type)
{
struct sample_grabber_stream *stream = impl_from_IMFMediaTypeHandler(iface);
TRACE("%p, %p.\n", iface, type);
if (!type)
return E_POINTER;
if (!stream->sink)
return MF_E_STREAMSINK_REMOVED;
return IMFMediaType_GetMajorType(stream->sink->media_type, type);
}
static const IMFMediaTypeHandlerVtbl sample_grabber_stream_type_handler_vtbl =
{
sample_grabber_stream_type_handler_QueryInterface,
sample_grabber_stream_type_handler_AddRef,
sample_grabber_stream_type_handler_Release,
sample_grabber_stream_type_handler_IsMediaTypeSupported,
sample_grabber_stream_type_handler_GetMediaTypeCount,
sample_grabber_stream_type_handler_GetMediaTypeByIndex,
sample_grabber_stream_type_handler_SetCurrentMediaType,
sample_grabber_stream_type_handler_GetCurrentMediaType,
sample_grabber_stream_type_handler_GetMajorType,
};
static HRESULT WINAPI sample_grabber_sink_QueryInterface(IMFMediaSink *iface, REFIID riid, void **obj)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IMFMediaSink) ||
IsEqualIID(riid, &IID_IUnknown))
{
*obj = &grabber->IMFMediaSink_iface;
}
else if (IsEqualIID(riid, &IID_IMFClockStateSink))
{
*obj = &grabber->IMFClockStateSink_iface;
}
else if (IsEqualIID(riid, &IID_IMFMediaEventGenerator))
{
*obj = &grabber->IMFMediaEventGenerator_iface;
}
else
{
WARN("Unsupported %s.\n", debugstr_guid(riid));
*obj = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown *)*obj);
return S_OK;
}
static ULONG WINAPI sample_grabber_sink_AddRef(IMFMediaSink *iface)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
ULONG refcount = InterlockedIncrement(&grabber->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
return refcount;
}
static ULONG WINAPI sample_grabber_sink_Release(IMFMediaSink *iface)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
ULONG refcount = InterlockedDecrement(&grabber->refcount);
TRACE("%p, refcount %u.\n", iface, refcount);
if (!refcount)
{
IMFSampleGrabberSinkCallback_Release(grabber->callback);
IMFMediaType_Release(grabber->media_type);
if (grabber->event_queue)
{
IMFMediaEventQueue_Shutdown(grabber->event_queue);
IMFMediaEventQueue_Release(grabber->event_queue);
}
if (grabber->clock)
IMFPresentationClock_Release(grabber->clock);
DeleteCriticalSection(&grabber->cs);
heap_free(grabber);
}
return refcount;
}
static HRESULT WINAPI sample_grabber_sink_GetCharacteristics(IMFMediaSink *iface, DWORD *flags)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
TRACE("%p, %p.\n", iface, flags);
if (grabber->is_shut_down)
return MF_E_SHUTDOWN;
*flags = MEDIASINK_FIXED_STREAMS;
return S_OK;
}
static HRESULT WINAPI sample_grabber_sink_AddStreamSink(IMFMediaSink *iface, DWORD stream_sink_id,
IMFMediaType *media_type, IMFStreamSink **stream_sink)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
TRACE("%p, %#x, %p, %p.\n", iface, stream_sink_id, media_type, stream_sink);
return grabber->is_shut_down ? MF_E_SHUTDOWN : MF_E_STREAMSINKS_FIXED;
}
static HRESULT WINAPI sample_grabber_sink_RemoveStreamSink(IMFMediaSink *iface, DWORD stream_sink_id)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
TRACE("%p, %#x.\n", iface, stream_sink_id);
return grabber->is_shut_down ? MF_E_SHUTDOWN : MF_E_STREAMSINKS_FIXED;
}
static HRESULT WINAPI sample_grabber_sink_GetStreamSinkCount(IMFMediaSink *iface, DWORD *count)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
TRACE("%p, %p.\n", iface, count);
if (grabber->is_shut_down)
return MF_E_SHUTDOWN;
*count = 1;
return S_OK;
}
static HRESULT WINAPI sample_grabber_sink_GetStreamSinkByIndex(IMFMediaSink *iface, DWORD index,
IMFStreamSink **stream)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
HRESULT hr = S_OK;
TRACE("%p, %u, %p.\n", iface, index, stream);
if (grabber->is_shut_down)
return MF_E_SHUTDOWN;
EnterCriticalSection(&grabber->cs);
if (grabber->is_shut_down)
hr = MF_E_SHUTDOWN;
else if (index > 0)
hr = MF_E_INVALIDINDEX;
else
{
*stream = &grabber->stream->IMFStreamSink_iface;
IMFStreamSink_AddRef(*stream);
}
LeaveCriticalSection(&grabber->cs);
return hr;
}
static HRESULT WINAPI sample_grabber_sink_GetStreamSinkById(IMFMediaSink *iface, DWORD stream_sink_id,
IMFStreamSink **stream)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
HRESULT hr = S_OK;
TRACE("%p, %#x, %p.\n", iface, stream_sink_id, stream);
EnterCriticalSection(&grabber->cs);
if (grabber->is_shut_down)
hr = MF_E_SHUTDOWN;
else if (stream_sink_id > 0)
hr = MF_E_INVALIDSTREAMNUMBER;
else
{
*stream = &grabber->stream->IMFStreamSink_iface;
IMFStreamSink_AddRef(*stream);
}
LeaveCriticalSection(&grabber->cs);
return hr;
}
static HRESULT WINAPI sample_grabber_sink_SetPresentationClock(IMFMediaSink *iface, IMFPresentationClock *clock)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
HRESULT hr;
TRACE("%p, %p.\n", iface, clock);
EnterCriticalSection(&grabber->cs);
if (SUCCEEDED(hr = IMFSampleGrabberSinkCallback_OnSetPresentationClock(grabber->callback, clock)))
{
if (grabber->clock)
{
IMFPresentationClock_RemoveClockStateSink(grabber->clock, &grabber->IMFClockStateSink_iface);
IMFPresentationClock_Release(grabber->clock);
}
grabber->clock = clock;
if (grabber->clock)
{
IMFPresentationClock_AddRef(grabber->clock);
IMFPresentationClock_AddClockStateSink(grabber->clock, &grabber->IMFClockStateSink_iface);
}
}
LeaveCriticalSection(&grabber->cs);
return hr;
}
static HRESULT WINAPI sample_grabber_sink_GetPresentationClock(IMFMediaSink *iface, IMFPresentationClock **clock)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
HRESULT hr = S_OK;
TRACE("%p, %p.\n", iface, clock);
if (!clock)
return E_POINTER;
EnterCriticalSection(&grabber->cs);
if (grabber->clock)
{
*clock = grabber->clock;
IMFPresentationClock_AddRef(*clock);
}
else
hr = MF_E_NO_CLOCK;
LeaveCriticalSection(&grabber->cs);
return hr;
}
static HRESULT WINAPI sample_grabber_sink_Shutdown(IMFMediaSink *iface)
{
struct sample_grabber *grabber = impl_from_IMFMediaSink(iface);
HRESULT hr;
TRACE("%p.\n", iface);
if (grabber->is_shut_down)
return MF_E_SHUTDOWN;
EnterCriticalSection(&grabber->cs);
grabber->is_shut_down = TRUE;
if (SUCCEEDED(hr = IMFSampleGrabberSinkCallback_OnShutdown(grabber->callback)))
{
IMFMediaSink_Release(&grabber->stream->sink->IMFMediaSink_iface);
grabber->stream->sink = NULL;
IMFStreamSink_Release(&grabber->stream->IMFStreamSink_iface);
grabber->stream = NULL;
}
EnterCriticalSection(&grabber->cs);
return hr;
}
static const IMFMediaSinkVtbl sample_grabber_sink_vtbl =
{
sample_grabber_sink_QueryInterface,
sample_grabber_sink_AddRef,
sample_grabber_sink_Release,
sample_grabber_sink_GetCharacteristics,
sample_grabber_sink_AddStreamSink,
sample_grabber_sink_RemoveStreamSink,
sample_grabber_sink_GetStreamSinkCount,
sample_grabber_sink_GetStreamSinkByIndex,
sample_grabber_sink_GetStreamSinkById,
sample_grabber_sink_SetPresentationClock,
sample_grabber_sink_GetPresentationClock,
sample_grabber_sink_Shutdown,
};
static HRESULT WINAPI sample_grabber_clock_sink_QueryInterface(IMFClockStateSink *iface, REFIID riid, void **obj)
{
struct sample_grabber *grabber = impl_from_IMFClockStateSink(iface);
return IMFMediaSink_QueryInterface(&grabber->IMFMediaSink_iface, riid, obj);
}
static ULONG WINAPI sample_grabber_clock_sink_AddRef(IMFClockStateSink *iface)
{
struct sample_grabber *grabber = impl_from_IMFClockStateSink(iface);
return IMFMediaSink_AddRef(&grabber->IMFMediaSink_iface);
}
static ULONG WINAPI sample_grabber_clock_sink_Release(IMFClockStateSink *iface)
{
struct sample_grabber *grabber = impl_from_IMFClockStateSink(iface);
return IMFMediaSink_Release(&grabber->IMFMediaSink_iface);
}
static HRESULT WINAPI sample_grabber_clock_sink_OnClockStart(IMFClockStateSink *iface, MFTIME systime, LONGLONG offset)
{
FIXME("%p, %s, %s.\n", iface, wine_dbgstr_longlong(systime), wine_dbgstr_longlong(offset));
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_clock_sink_OnClockStop(IMFClockStateSink *iface, MFTIME systime)
{
FIXME("%p, %s.\n", iface, wine_dbgstr_longlong(systime));
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_clock_sink_OnClockPause(IMFClockStateSink *iface, MFTIME systime)
{
FIXME("%p, %s.\n", iface, wine_dbgstr_longlong(systime));
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_clock_sink_OnClockRestart(IMFClockStateSink *iface, MFTIME systime)
{
FIXME("%p, %s.\n", iface, wine_dbgstr_longlong(systime));
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_clock_sink_OnClockSetRate(IMFClockStateSink *iface, MFTIME systime, float rate)
{
FIXME("%p, %s, %f.\n", iface, wine_dbgstr_longlong(systime), rate);
return E_NOTIMPL;
}
static HRESULT WINAPI sample_grabber_events_QueryInterface(IMFMediaEventGenerator *iface, REFIID riid, void **obj)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
return IMFMediaSink_QueryInterface(&grabber->IMFMediaSink_iface, riid, obj);
}
static ULONG WINAPI sample_grabber_events_AddRef(IMFMediaEventGenerator *iface)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
return IMFMediaSink_AddRef(&grabber->IMFMediaSink_iface);
}
static ULONG WINAPI sample_grabber_events_Release(IMFMediaEventGenerator *iface)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
return IMFMediaSink_Release(&grabber->IMFMediaSink_iface);
}
static HRESULT WINAPI sample_grabber_events_GetEvent(IMFMediaEventGenerator *iface, DWORD flags, IMFMediaEvent **event)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
TRACE("%p, %#x, %p.\n", iface, flags, event);
return IMFMediaEventQueue_GetEvent(grabber->event_queue, flags, event);
}
static HRESULT WINAPI sample_grabber_events_BeginGetEvent(IMFMediaEventGenerator *iface, IMFAsyncCallback *callback,
IUnknown *state)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
TRACE("%p, %p, %p.\n", iface, callback, state);
return IMFMediaEventQueue_BeginGetEvent(grabber->event_queue, callback, state);
}
static HRESULT WINAPI sample_grabber_events_EndGetEvent(IMFMediaEventGenerator *iface, IMFAsyncResult *result,
IMFMediaEvent **event)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
TRACE("%p, %p, %p.\n", iface, result, event);
return IMFMediaEventQueue_EndGetEvent(grabber->event_queue, result, event);
}
static HRESULT WINAPI sample_grabber_events_QueueEvent(IMFMediaEventGenerator *iface, MediaEventType event_type,
REFGUID ext_type, HRESULT hr, const PROPVARIANT *value)
{
struct sample_grabber *grabber = impl_from_IMFMediaEventGenerator(iface);
TRACE("%p, %u, %s, %#x, %p.\n", iface, event_type, debugstr_guid(ext_type), hr, value);
return IMFMediaEventQueue_QueueEventParamVar(grabber->event_queue, event_type, ext_type, hr, value);
}
static const IMFMediaEventGeneratorVtbl sample_grabber_sink_events_vtbl =
{
sample_grabber_events_QueryInterface,
sample_grabber_events_AddRef,
sample_grabber_events_Release,
sample_grabber_events_GetEvent,
sample_grabber_events_BeginGetEvent,
sample_grabber_events_EndGetEvent,
sample_grabber_events_QueueEvent,
};
static const IMFClockStateSinkVtbl sample_grabber_clock_sink_vtbl =
{
sample_grabber_clock_sink_QueryInterface,
sample_grabber_clock_sink_AddRef,
sample_grabber_clock_sink_Release,
sample_grabber_clock_sink_OnClockStart,
sample_grabber_clock_sink_OnClockStop,
sample_grabber_clock_sink_OnClockPause,
sample_grabber_clock_sink_OnClockRestart,
sample_grabber_clock_sink_OnClockSetRate,
};
static HRESULT sample_grabber_create_stream(struct sample_grabber *sink, struct sample_grabber_stream **stream)
{
struct sample_grabber_stream *object;
HRESULT hr;
object = heap_alloc_zero(sizeof(*object));
if (!object)
return E_OUTOFMEMORY;
object->IMFStreamSink_iface.lpVtbl = &sample_grabber_stream_vtbl;
object->IMFMediaTypeHandler_iface.lpVtbl = &sample_grabber_stream_type_handler_vtbl;
object->refcount = 1;
object->sink = sink;
IMFMediaSink_AddRef(&object->sink->IMFMediaSink_iface);
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
goto failed;
*stream = object;
return S_OK;
failed:
IMFStreamSink_Release(&object->IMFStreamSink_iface);
return hr;
}
static HRESULT sample_grabber_create_object(IMFAttributes *attributes, void *user_context, IUnknown **obj)
{
struct sample_grabber_activate_context *context = user_context;
struct sample_grabber *object;
HRESULT hr;
GUID guid;
TRACE("%p, %p, %p.\n", attributes, user_context, obj);
/* At least major type is required. */
if (FAILED(IMFMediaType_GetMajorType(context->media_type, &guid)))
return MF_E_INVALIDMEDIATYPE;
object = heap_alloc_zero(sizeof(*object));
if (!object)
return E_OUTOFMEMORY;
object->IMFMediaSink_iface.lpVtbl = &sample_grabber_sink_vtbl;
object->IMFClockStateSink_iface.lpVtbl = &sample_grabber_clock_sink_vtbl;
object->IMFMediaEventGenerator_iface.lpVtbl = &sample_grabber_sink_events_vtbl;
object->refcount = 1;
object->callback = context->callback;
IMFSampleGrabberSinkCallback_AddRef(object->callback);
object->media_type = context->media_type;
IMFMediaType_AddRef(object->media_type);
InitializeCriticalSection(&object->cs);
if (FAILED(hr = sample_grabber_create_stream(object, &object->stream)))
goto failed;
if (FAILED(hr = MFCreateEventQueue(&object->event_queue)))
goto failed;
*obj = (IUnknown *)&object->IMFMediaSink_iface;
TRACE("Created %p.\n", *obj);
return S_OK;
failed:
IMFMediaSink_Release(&object->IMFMediaSink_iface);
return hr;
}
static const struct activate_funcs sample_grabber_activate_funcs =
{
sample_grabber_create_object,
sample_grabber_free_private,
};
/***********************************************************************
* MFCreateSampleGrabberSinkActivate (mf.@)
*/
HRESULT WINAPI MFCreateSampleGrabberSinkActivate(IMFMediaType *media_type, IMFSampleGrabberSinkCallback *callback,
IMFActivate **activate)
{
struct sample_grabber_activate_context *context;
HRESULT hr;
TRACE("%p, %p, %p.\n", media_type, callback, activate);
if (!media_type || !callback || !activate)
return E_POINTER;
context = heap_alloc_zero(sizeof(*context));
if (!context)
return E_OUTOFMEMORY;
context->media_type = media_type;
IMFMediaType_AddRef(context->media_type);
context->callback = callback;
IMFSampleGrabberSinkCallback_AddRef(context->callback);
if (FAILED(hr = create_activation_object(context, &sample_grabber_activate_funcs, activate)))
sample_grabber_free_private(context);
return hr;
}