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quartz: Return IMediaSeeking interface for Parser PullPin.

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This commit is contained in:
Erich Hoover 2011-05-14 11:14:45 -06:00 committed by Alexandre Julliard
parent 7a405fa9e9
commit 819643ada8
1 changed files with 26 additions and 1 deletions
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27
dlls/quartz/parser.c
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@ -702,6 +702,31 @@ static const IPinVtbl Parser_OutputPin_Vtbl =
BasePinImpl_NewSegment
};
static HRESULT WINAPI Parser_PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
{
PullPin *This = (PullPin *)iface;
TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
*ppv = NULL;
/*
* It is important to capture the request for the IMediaSeeking interface before it is passed
* on to PullPin_QueryInterface, this is necessary since the Parser filter does not support
* querying IMediaSeeking
*/
if (IsEqualIID(riid, &IID_IMediaSeeking))
*ppv = &((ParserImpl*)This->pin.pinInfo.pFilter)->sourceSeeking;
if (*ppv)
{
IUnknown_AddRef((IUnknown *)(*ppv));
return S_OK;
}
return PullPin_QueryInterface(iface, riid, ppv);
}
static HRESULT WINAPI Parser_PullPin_Disconnect(IPin * iface)
{
HRESULT hr;
@ -770,7 +795,7 @@ static HRESULT WINAPI Parser_PullPin_EnumMediaTypes(IPin *iface, IEnumMediaTypes
static const IPinVtbl Parser_InputPin_Vtbl =
{
PullPin_QueryInterface,
Parser_PullPin_QueryInterface,
BasePinImpl_AddRef,
PullPin_Release,
BaseInputPinImpl_Connect,