Sweden-Number/dlls/strmbase/renderer.c

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/*
* Generic Implementation of strmbase Base Renderer classes
*
* Copyright 2012 Aric Stewart, 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
*/
#include "strmbase_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
static inline struct strmbase_renderer *impl_from_strmbase_filter(struct strmbase_filter *iface)
{
return CONTAINING_RECORD(iface, struct strmbase_renderer, filter);
}
static inline struct strmbase_renderer *impl_from_IPin(IPin *iface)
{
return CONTAINING_RECORD(iface, struct strmbase_renderer, sink.pin.IPin_iface);
}
static struct strmbase_pin *renderer_get_pin(struct strmbase_filter *iface, unsigned int index)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
if (index == 0)
return &filter->sink.pin;
return NULL;
}
static void renderer_destroy(struct strmbase_filter *iface)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
filter->pFuncsTable->renderer_destroy(filter);
}
static HRESULT renderer_query_interface(struct strmbase_filter *iface, REFIID iid, void **out)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
HRESULT hr;
if (filter->pFuncsTable->renderer_query_interface
&& SUCCEEDED(hr = filter->pFuncsTable->renderer_query_interface(filter, iid, out)))
{
return hr;
}
if (IsEqualGUID(iid, &IID_IMediaPosition))
*out = &filter->passthrough.IMediaPosition_iface;
else if (IsEqualGUID(iid, &IID_IMediaSeeking))
*out = &filter->passthrough.IMediaSeeking_iface;
else if (IsEqualGUID(iid, &IID_IQualityControl))
*out = &filter->qc.IQualityControl_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static HRESULT renderer_init_stream(struct strmbase_filter *iface)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
if (filter->sink.pin.peer)
ResetEvent(filter->state_event);
filter->eos = FALSE;
ResetEvent(filter->flush_event);
if (filter->pFuncsTable->renderer_init_stream)
filter->pFuncsTable->renderer_init_stream(filter);
return filter->sink.pin.peer ? S_FALSE : S_OK;
}
static HRESULT renderer_start_stream(struct strmbase_filter *iface, REFERENCE_TIME start)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
filter->stream_start = start;
SetEvent(filter->state_event);
if (filter->sink.pin.peer)
filter->eos = FALSE;
QualityControlRender_Start(&filter->qc, filter->stream_start);
if (filter->sink.pin.peer && filter->pFuncsTable->renderer_start_stream)
filter->pFuncsTable->renderer_start_stream(filter);
return S_OK;
}
static HRESULT renderer_stop_stream(struct strmbase_filter *iface)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
if (filter->sink.pin.peer && filter->pFuncsTable->renderer_stop_stream)
filter->pFuncsTable->renderer_stop_stream(filter);
return S_OK;
}
static HRESULT renderer_cleanup_stream(struct strmbase_filter *iface)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
strmbase_passthrough_invalidate_time(&filter->passthrough);
SetEvent(filter->state_event);
SetEvent(filter->flush_event);
return S_OK;
}
static HRESULT renderer_wait_state(struct strmbase_filter *iface, DWORD timeout)
{
struct strmbase_renderer *filter = impl_from_strmbase_filter(iface);
if (WaitForSingleObject(filter->state_event, timeout) == WAIT_TIMEOUT)
return VFW_S_STATE_INTERMEDIATE;
return S_OK;
}
static const struct strmbase_filter_ops filter_ops =
{
.filter_get_pin = renderer_get_pin,
.filter_destroy = renderer_destroy,
.filter_query_interface = renderer_query_interface,
.filter_init_stream = renderer_init_stream,
.filter_start_stream = renderer_start_stream,
.filter_stop_stream = renderer_stop_stream,
.filter_cleanup_stream = renderer_cleanup_stream,
.filter_wait_state = renderer_wait_state,
};
static HRESULT sink_query_accept(struct strmbase_pin *pin, const AM_MEDIA_TYPE *mt)
{
struct strmbase_renderer *filter = impl_from_IPin(&pin->IPin_iface);
return filter->pFuncsTable->pfnCheckMediaType(filter, mt);
}
static HRESULT sink_query_interface(struct strmbase_pin *iface, REFIID iid, void **out)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->IPin_iface);
HRESULT hr;
if (filter->pFuncsTable->renderer_pin_query_interface
&& SUCCEEDED(hr = filter->pFuncsTable->renderer_pin_query_interface(filter, iid, out)))
return hr;
if (IsEqualGUID(iid, &IID_IMemInputPin))
*out = &filter->sink.IMemInputPin_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static HRESULT WINAPI BaseRenderer_Receive(struct strmbase_sink *pin, IMediaSample *sample)
{
struct strmbase_renderer *filter = impl_from_IPin(&pin->pin.IPin_iface);
REFERENCE_TIME start, stop;
BOOL need_wait = FALSE;
FILTER_STATE state;
HRESULT hr = S_OK;
AM_MEDIA_TYPE *mt;
if (filter->eos || filter->sink.flushing)
return S_FALSE;
state = filter->filter.state;
if (state == State_Stopped)
return VFW_E_WRONG_STATE;
if (IMediaSample_GetMediaType(sample, &mt) == S_OK)
{
TRACE("Format change.\n");
strmbase_dump_media_type(mt);
if (FAILED(filter->pFuncsTable->pfnCheckMediaType(filter, mt)))
return VFW_E_TYPE_NOT_ACCEPTED;
DeleteMediaType(mt);
}
if (filter->filter.clock && SUCCEEDED(IMediaSample_GetTime(sample, &start, &stop)))
{
strmbase_passthrough_update_time(&filter->passthrough, start);
need_wait = TRUE;
}
else
start = stop = -1;
if (state == State_Paused)
{
QualityControlRender_BeginRender(&filter->qc, start, stop);
hr = filter->pFuncsTable->pfnDoRenderSample(filter, sample);
QualityControlRender_EndRender(&filter->qc);
}
if (need_wait)
{
REFERENCE_TIME now;
DWORD_PTR cookie;
IReferenceClock_GetTime(filter->filter.clock, &now);
if (now - filter->stream_start - start <= -10000)
{
HANDLE handles[2] = {filter->advise_event, filter->flush_event};
DWORD ret;
IReferenceClock_AdviseTime(filter->filter.clock, filter->stream_start,
start, (HEVENT)filter->advise_event, &cookie);
ret = WaitForMultipleObjects(2, handles, FALSE, INFINITE);
IReferenceClock_Unadvise(filter->filter.clock, cookie);
if (ret == 1)
{
TRACE("Flush signaled; discarding current sample.\n");
return S_OK;
}
}
}
if (state == State_Running)
{
QualityControlRender_BeginRender(&filter->qc, start, stop);
hr = filter->pFuncsTable->pfnDoRenderSample(filter, sample);
QualityControlRender_EndRender(&filter->qc);
}
QualityControlRender_DoQOS(&filter->qc);
return hr;
}
static HRESULT sink_connect(struct strmbase_sink *iface, IPin *peer, const AM_MEDIA_TYPE *mt)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->pin.IPin_iface);
if (filter->pFuncsTable->renderer_connect)
return filter->pFuncsTable->renderer_connect(filter, mt);
return S_OK;
}
static void sink_disconnect(struct strmbase_sink *iface)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->pin.IPin_iface);
if (filter->pFuncsTable->pfnBreakConnect)
filter->pFuncsTable->pfnBreakConnect(filter);
}
static HRESULT sink_eos(struct strmbase_sink *iface)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->pin.IPin_iface);
IFilterGraph *graph = filter->filter.graph;
IMediaEventSink *event_sink;
filter->eos = TRUE;
if (graph && SUCCEEDED(IFilterGraph_QueryInterface(graph,
&IID_IMediaEventSink, (void **)&event_sink)))
{
IMediaEventSink_Notify(event_sink, EC_COMPLETE, S_OK,
(LONG_PTR)&filter->filter.IBaseFilter_iface);
IMediaEventSink_Release(event_sink);
}
strmbase_passthrough_eos(&filter->passthrough);
SetEvent(filter->state_event);
return S_OK;
}
static HRESULT sink_begin_flush(struct strmbase_sink *iface)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->pin.IPin_iface);
SetEvent(filter->flush_event);
return S_OK;
}
static HRESULT sink_end_flush(struct strmbase_sink *iface)
{
struct strmbase_renderer *filter = impl_from_IPin(&iface->pin.IPin_iface);
EnterCriticalSection(&filter->filter.stream_cs);
filter->eos = FALSE;
QualityControlRender_Start(&filter->qc, filter->stream_start);
strmbase_passthrough_invalidate_time(&filter->passthrough);
ResetEvent(filter->flush_event);
LeaveCriticalSection(&filter->filter.stream_cs);
return S_OK;
}
static const struct strmbase_sink_ops sink_ops =
{
.base.pin_query_accept = sink_query_accept,
.base.pin_query_interface = sink_query_interface,
.pfnReceive = BaseRenderer_Receive,
.sink_connect = sink_connect,
.sink_disconnect = sink_disconnect,
.sink_eos = sink_eos,
.sink_begin_flush = sink_begin_flush,
.sink_end_flush = sink_end_flush,
};
void strmbase_renderer_cleanup(struct strmbase_renderer *filter)
{
if (filter->sink.pin.peer)
IPin_Disconnect(filter->sink.pin.peer);
IPin_Disconnect(&filter->sink.pin.IPin_iface);
strmbase_sink_cleanup(&filter->sink);
strmbase_passthrough_cleanup(&filter->passthrough);
CloseHandle(filter->state_event);
CloseHandle(filter->advise_event);
CloseHandle(filter->flush_event);
strmbase_filter_cleanup(&filter->filter);
}
void strmbase_renderer_init(struct strmbase_renderer *filter, IUnknown *outer,
const CLSID *clsid, const WCHAR *sink_name, const struct strmbase_renderer_ops *ops)
{
memset(filter, 0, sizeof(*filter));
strmbase_filter_init(&filter->filter, outer, clsid, &filter_ops);
strmbase_passthrough_init(&filter->passthrough, (IUnknown *)&filter->filter.IBaseFilter_iface);
ISeekingPassThru_Init(&filter->passthrough.ISeekingPassThru_iface, TRUE, &filter->sink.pin.IPin_iface);
strmbase_qc_init(&filter->qc, &filter->sink.pin);
filter->pFuncsTable = ops;
strmbase_sink_init(&filter->sink, &filter->filter, sink_name, &sink_ops, NULL);
filter->state_event = CreateEventW(NULL, TRUE, TRUE, NULL);
filter->advise_event = CreateEventW(NULL, FALSE, FALSE, NULL);
filter->flush_event = CreateEventW(NULL, TRUE, TRUE, NULL);
}