Sweden-Number/dlls/strmbase/transform.c

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/*
* Transform Filter (Base for decoders, etc...)
*
* Copyright 2005 Christian Costa
* Copyright 2010 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 const WCHAR wcsInputPinName[] = {'I','n',0};
static const WCHAR wcsOutputPinName[] = {'O','u','t',0};
static inline TransformFilter *impl_from_strmbase_filter(struct strmbase_filter *iface)
{
return CONTAINING_RECORD(iface, TransformFilter, filter);
}
static inline TransformFilter *impl_from_sink_IPin(IPin *iface)
{
return CONTAINING_RECORD(iface, TransformFilter, sink.pin.IPin_iface);
}
static HRESULT sink_query_accept(struct strmbase_pin *iface, const AM_MEDIA_TYPE *pmt)
{
TransformFilter *pTransform = impl_from_sink_IPin(&iface->IPin_iface);
TRACE("%p\n", iface);
if (pTransform->pFuncsTable->pfnCheckInputType)
return pTransform->pFuncsTable->pfnCheckInputType(pTransform, pmt);
/* Assume OK if there's no query method (the connection will fail if
needed) */
return S_OK;
}
static HRESULT WINAPI TransformFilter_Input_Receive(struct strmbase_sink *This, IMediaSample *pInSample)
{
TransformFilter *pTransform = impl_from_sink_IPin(&This->pin.IPin_iface);
HRESULT hr;
TRACE("%p\n", This);
/* We do not expect pin connection state to change while the filter is
* running. This guarantee is necessary, since otherwise we would have to
* take the filter lock, and we can't take the filter lock from a streaming
* thread. */
if (!pTransform->source.pMemInputPin)
{
WARN("Source is not connected, returning VFW_E_NOT_CONNECTED.\n");
return VFW_E_NOT_CONNECTED;
}
EnterCriticalSection(&pTransform->csReceive);
if (pTransform->filter.state == State_Stopped)
{
LeaveCriticalSection(&pTransform->csReceive);
return VFW_E_WRONG_STATE;
}
if (This->flushing)
{
LeaveCriticalSection(&pTransform->csReceive);
return S_FALSE;
}
if (pTransform->pFuncsTable->pfnReceive)
hr = pTransform->pFuncsTable->pfnReceive(pTransform, pInSample);
else
hr = S_FALSE;
LeaveCriticalSection(&pTransform->csReceive);
return hr;
}
static inline TransformFilter *impl_from_source_IPin(IPin *iface)
{
return CONTAINING_RECORD(iface, TransformFilter, source.pin.IPin_iface);
}
static HRESULT source_query_accept(struct strmbase_pin *This, const AM_MEDIA_TYPE *pmt)
{
TransformFilter *pTransformFilter = impl_from_source_IPin(&This->IPin_iface);
AM_MEDIA_TYPE* outpmt = &pTransformFilter->pmt;
if (IsEqualIID(&pmt->majortype, &outpmt->majortype)
&& (IsEqualIID(&pmt->subtype, &outpmt->subtype) || IsEqualIID(&outpmt->subtype, &GUID_NULL)))
return S_OK;
return S_FALSE;
}
static HRESULT WINAPI TransformFilter_Output_DecideBufferSize(struct strmbase_source *This,
IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
{
TransformFilter *pTransformFilter = impl_from_source_IPin(&This->pin.IPin_iface);
return pTransformFilter->pFuncsTable->pfnDecideBufferSize(pTransformFilter, pAlloc, ppropInputRequest);
}
static HRESULT source_get_media_type(struct strmbase_pin *This, unsigned int iPosition, AM_MEDIA_TYPE *pmt)
{
TransformFilter *pTransform = impl_from_source_IPin(&This->IPin_iface);
if (iPosition > 0)
return VFW_S_NO_MORE_ITEMS;
CopyMediaType(pmt, &pTransform->pmt);
return S_OK;
}
static struct strmbase_pin *transform_get_pin(struct strmbase_filter *iface, unsigned int index)
{
TransformFilter *filter = impl_from_strmbase_filter(iface);
if (index == 0)
return &filter->sink.pin;
else if (index == 1)
return &filter->source.pin;
return NULL;
}
static void transform_destroy(struct strmbase_filter *iface)
{
TransformFilter *filter = impl_from_strmbase_filter(iface);
if (filter->sink.pin.peer)
IPin_Disconnect(filter->sink.pin.peer);
IPin_Disconnect(&filter->sink.pin.IPin_iface);
if (filter->source.pin.peer)
IPin_Disconnect(filter->source.pin.peer);
IPin_Disconnect(&filter->source.pin.IPin_iface);
strmbase_sink_cleanup(&filter->sink);
strmbase_source_cleanup(&filter->source);
filter->csReceive.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&filter->csReceive);
FreeMediaType(&filter->pmt);
IUnknown_Release(filter->seekthru_unk);
strmbase_filter_cleanup(&filter->filter);
CoTaskMemFree(filter);
}
static HRESULT transform_init_stream(struct strmbase_filter *iface)
{
TransformFilter *filter = impl_from_strmbase_filter(iface);
HRESULT hr = S_OK;
EnterCriticalSection(&filter->csReceive);
if (filter->pFuncsTable->pfnStartStreaming)
hr = filter->pFuncsTable->pfnStartStreaming(filter);
if (SUCCEEDED(hr))
hr = BaseOutputPinImpl_Active(&filter->source);
LeaveCriticalSection(&filter->csReceive);
return hr;
}
static HRESULT transform_cleanup_stream(struct strmbase_filter *iface)
{
TransformFilter *filter = impl_from_strmbase_filter(iface);
HRESULT hr = S_OK;
EnterCriticalSection(&filter->csReceive);
if (filter->pFuncsTable->pfnStopStreaming)
hr = filter->pFuncsTable->pfnStopStreaming(filter);
if (SUCCEEDED(hr))
hr = BaseOutputPinImpl_Inactive(&filter->source);
LeaveCriticalSection(&filter->csReceive);
return hr;
}
static const struct strmbase_filter_ops filter_ops =
{
.filter_get_pin = transform_get_pin,
.filter_destroy = transform_destroy,
.filter_init_stream = transform_init_stream,
.filter_cleanup_stream = transform_cleanup_stream,
};
static HRESULT sink_query_interface(struct strmbase_pin *iface, REFIID iid, void **out)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->IPin_iface);
if (IsEqualGUID(iid, &IID_IMemInputPin))
*out = &filter->sink.IMemInputPin_iface;
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static HRESULT sink_connect(struct strmbase_sink *iface, IPin *peer, const AM_MEDIA_TYPE *mt)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
if (filter->pFuncsTable->transform_connect_sink)
return filter->pFuncsTable->transform_connect_sink(filter, mt);
return S_OK;
}
static void sink_disconnect(struct strmbase_sink *iface)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
if (filter->pFuncsTable->pfnBreakConnect)
filter->pFuncsTable->pfnBreakConnect(filter, PINDIR_INPUT);
}
static HRESULT sink_eos(struct strmbase_sink *iface)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
if (filter->source.pin.peer)
return IPin_EndOfStream(filter->source.pin.peer);
return VFW_E_NOT_CONNECTED;
}
static HRESULT sink_begin_flush(struct strmbase_sink *iface)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
HRESULT hr = S_OK;
if (filter->pFuncsTable->pfnBeginFlush)
hr = filter->pFuncsTable->pfnBeginFlush(filter);
if (SUCCEEDED(hr) && filter->source.pin.peer)
hr = IPin_BeginFlush(filter->source.pin.peer);
return hr;
}
static HRESULT sink_end_flush(struct strmbase_sink *iface)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
HRESULT hr = S_OK;
if (filter->pFuncsTable->pfnEndFlush)
hr = filter->pFuncsTable->pfnEndFlush(filter);
if (SUCCEEDED(hr) && filter->source.pin.peer)
hr = IPin_EndFlush(filter->source.pin.peer);
return hr;
}
static HRESULT sink_new_segment(struct strmbase_sink *iface,
REFERENCE_TIME start, REFERENCE_TIME stop, double rate)
{
TransformFilter *filter = impl_from_sink_IPin(&iface->pin.IPin_iface);
HRESULT hr = S_OK;
if (filter->pFuncsTable->pfnNewSegment)
hr = filter->pFuncsTable->pfnNewSegment(filter, start, stop, rate);
if (SUCCEEDED(hr) && filter->source.pin.peer)
hr = IPin_NewSegment(filter->source.pin.peer, start, stop, rate);
return hr;
}
static const struct strmbase_sink_ops sink_ops =
{
.base.pin_query_accept = sink_query_accept,
.base.pin_get_media_type = strmbase_pin_get_media_type,
.base.pin_query_interface = sink_query_interface,
.pfnReceive = TransformFilter_Input_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,
.sink_new_segment = sink_new_segment,
};
static HRESULT source_query_interface(struct strmbase_pin *iface, REFIID iid, void **out)
{
TransformFilter *filter = impl_from_source_IPin(&iface->IPin_iface);
if (IsEqualGUID(iid, &IID_IQualityControl))
*out = &filter->source_IQualityControl_iface;
else if (IsEqualGUID(iid, &IID_IMediaSeeking))
return IUnknown_QueryInterface(filter->seekthru_unk, iid, out);
else
return E_NOINTERFACE;
IUnknown_AddRef((IUnknown *)*out);
return S_OK;
}
static const struct strmbase_source_ops source_ops =
{
.base.pin_query_accept = source_query_accept,
.base.pin_get_media_type = source_get_media_type,
.base.pin_query_interface = source_query_interface,
.pfnAttemptConnection = BaseOutputPinImpl_AttemptConnection,
.pfnDecideBufferSize = TransformFilter_Output_DecideBufferSize,
.pfnDecideAllocator = BaseOutputPinImpl_DecideAllocator,
};
static TransformFilter *impl_from_source_IQualityControl(IQualityControl *iface)
{
return CONTAINING_RECORD(iface, TransformFilter, source_IQualityControl_iface);
}
static HRESULT WINAPI transform_source_qc_QueryInterface(IQualityControl *iface,
REFIID iid, void **out)
{
TransformFilter *filter = impl_from_source_IQualityControl(iface);
return IPin_QueryInterface(&filter->source.pin.IPin_iface, iid, out);
}
static ULONG WINAPI transform_source_qc_AddRef(IQualityControl *iface)
{
TransformFilter *filter = impl_from_source_IQualityControl(iface);
return IPin_AddRef(&filter->source.pin.IPin_iface);
}
static ULONG WINAPI transform_source_qc_Release(IQualityControl *iface)
{
TransformFilter *filter = impl_from_source_IQualityControl(iface);
return IPin_Release(&filter->source.pin.IPin_iface);
}
HRESULT WINAPI TransformFilterImpl_Notify(TransformFilter *filter, IBaseFilter *sender, Quality q)
{
IQualityControl *peer;
HRESULT hr = S_FALSE;
if (filter->source_qc_sink)
return IQualityControl_Notify(filter->source_qc_sink, &filter->filter.IBaseFilter_iface, q);
if (filter->sink.pin.peer
&& SUCCEEDED(IPin_QueryInterface(filter->sink.pin.peer, &IID_IQualityControl, (void **)&peer)))
{
hr = IQualityControl_Notify(peer, &filter->filter.IBaseFilter_iface, q);
IQualityControl_Release(peer);
}
return hr;
}
static HRESULT WINAPI transform_source_qc_Notify(IQualityControl *iface,
IBaseFilter *sender, Quality q)
{
TransformFilter *filter = impl_from_source_IQualityControl(iface);
TRACE("filter %p, sender %p, type %#x, proportion %u, late %s, timestamp %s.\n",
filter, sender, q.Type, q.Proportion, debugstr_time(q.Late), debugstr_time(q.TimeStamp));
if (filter->pFuncsTable->pfnNotify)
return filter->pFuncsTable->pfnNotify(filter, sender, q);
return TransformFilterImpl_Notify(filter, sender, q);
}
static HRESULT WINAPI transform_source_qc_SetSink(IQualityControl *iface, IQualityControl *sink)
{
TransformFilter *filter = impl_from_source_IQualityControl(iface);
TRACE("filter %p, sink %p.\n", filter, sink);
filter->source_qc_sink = sink;
return S_OK;
}
static const IQualityControlVtbl source_qc_vtbl =
{
transform_source_qc_QueryInterface,
transform_source_qc_AddRef,
transform_source_qc_Release,
transform_source_qc_Notify,
transform_source_qc_SetSink,
};
static HRESULT strmbase_transform_init(IUnknown *outer, const CLSID *clsid,
const TransformFilterFuncTable *func_table, TransformFilter *filter)
{
ISeekingPassThru *passthru;
HRESULT hr;
strmbase_filter_init(&filter->filter, outer, clsid, &filter_ops);
InitializeCriticalSection(&filter->csReceive);
filter->csReceive.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__": TransformFilter.csReceive");
/* pTransformFilter is already allocated */
filter->pFuncsTable = func_table;
ZeroMemory(&filter->pmt, sizeof(filter->pmt));
strmbase_sink_init(&filter->sink, &filter->filter, wcsInputPinName, &sink_ops, NULL);
strmbase_source_init(&filter->source, &filter->filter, wcsOutputPinName, &source_ops);
filter->source_IQualityControl_iface.lpVtbl = &source_qc_vtbl;
filter->seekthru_unk = NULL;
hr = CoCreateInstance(&CLSID_SeekingPassThru, (IUnknown *)&filter->filter.IBaseFilter_iface,
CLSCTX_INPROC_SERVER, &IID_IUnknown, (void **)&filter->seekthru_unk);
if (SUCCEEDED(hr))
{
IUnknown_QueryInterface(filter->seekthru_unk, &IID_ISeekingPassThru, (void **)&passthru);
ISeekingPassThru_Init(passthru, FALSE, &filter->sink.pin.IPin_iface);
ISeekingPassThru_Release(passthru);
}
if (FAILED(hr))
{
strmbase_sink_cleanup(&filter->sink);
strmbase_source_cleanup(&filter->source);
strmbase_filter_cleanup(&filter->filter);
}
return hr;
}
HRESULT strmbase_transform_create(LONG filter_size, IUnknown *outer, const CLSID *pClsid,
const TransformFilterFuncTable *pFuncsTable, IBaseFilter **ppTransformFilter)
{
TransformFilter* pTf;
*ppTransformFilter = NULL;
assert(filter_size >= sizeof(TransformFilter));
pTf = CoTaskMemAlloc(filter_size);
if (!pTf)
return E_OUTOFMEMORY;
ZeroMemory(pTf, filter_size);
if (SUCCEEDED(strmbase_transform_init(outer, pClsid, pFuncsTable, pTf)))
{
*ppTransformFilter = &pTf->filter.IBaseFilter_iface;
return S_OK;
}
CoTaskMemFree(pTf);
return E_FAIL;
}