Sweden-Number/dlls/quartz/pin.h

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/*
* IPin function declarations to allow inheritance
*
* Copyright 2003 Robert Shearman
*
* 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
*/
/* This function will process incoming samples to the pin.
* Any return value valid in IMemInputPin::Receive is allowed here
*
* Cookie is the cookie that was set when requesting the buffer, if you don't
* implement custom requesting, you can safely ignore this
*/
typedef HRESULT (* SAMPLEPROC_PUSH)(LPVOID userdata, IMediaSample * pSample);
typedef HRESULT (* SAMPLEPROC_PULL)(LPVOID userdata, IMediaSample * pSample, DWORD_PTR cookie);
/* This function will determine whether a type is supported or not.
* It is allowed to return any error value (within reason), as opposed
* to IPin::QueryAccept which is only allowed to return S_OK or S_FALSE.
*/
typedef HRESULT (* QUERYACCEPTPROC)(LPVOID userdata, const AM_MEDIA_TYPE * pmt);
/* This function is called prior to finalizing a connection with
* another pin and can be used to get things from the other pin
* like IMemInput interfaces.
*
* props contains some defaults, but you can safely override them to your liking
*/
typedef HRESULT (* PRECONNECTPROC)(IPin * iface, IPin * pConnectPin, ALLOCATOR_PROPERTIES *props);
/* This function is called whenever a cleanup operation has to occur,
* this is usually after a flush, seek, or end of stream notification.
* This code may even be repeated multiple times, so build your code to
* tolerate this behavior. Return value is ignored and should be S_OK.
*/
typedef HRESULT (* CLEANUPPROC) (LPVOID userdata);
/* This function is called whenever a request for a new sample is made,
* If you implement it (it can be NULL for default behavior), you have to
* call IMemAllocator_GetBuffer and IMemAllocator_RequestBuffer
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* This is useful if you want to request more than 1 buffer at simultaneously
*
* This will also cause the Sample Proc to be called with empty buffers to indicate
* failure in retrieving the sample.
*/
typedef HRESULT (* REQUESTPROC) (LPVOID userdata);
/* This function is called after processing is done (for whatever reason that is caused)
* This is useful if you create processing threads that need to die
*/
typedef HRESULT (* STOPPROCESSPROC) (LPVOID userdata);
#define ALIGNDOWN(value,boundary) ((value)/(boundary)*(boundary))
#define ALIGNUP(value,boundary) (ALIGNDOWN((value)+(boundary)-1, (boundary)))
typedef struct IPinImpl
{
const struct IPinVtbl * lpVtbl;
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LONG refCount;
LPCRITICAL_SECTION pCritSec;
PIN_INFO pinInfo;
IPin * pConnectedTo;
AM_MEDIA_TYPE mtCurrent;
ENUMMEDIADETAILS enumMediaDetails;
QUERYACCEPTPROC fnQueryAccept;
LPVOID pUserData;
} IPinImpl;
typedef struct InputPin
{
/* inheritance C style! */
IPinImpl pin;
const IMemInputPinVtbl * lpVtblMemInput;
IMemAllocator * pAllocator;
SAMPLEPROC_PUSH fnSampleProc;
CLEANUPPROC fnCleanProc;
REFERENCE_TIME tStart;
REFERENCE_TIME tStop;
double dRate;
BOOL flushing, end_of_stream;
IMemAllocator *preferred_allocator;
} InputPin;
typedef struct OutputPin
{
/* inheritance C style! */
IPinImpl pin;
IMemInputPin * pMemInputPin;
HRESULT (* pConnectSpecific)(IPin * iface, IPin * pReceiver, const AM_MEDIA_TYPE * pmt);
BOOL custom_allocator;
IMemAllocator *alloc;
BOOL readonly;
ALLOCATOR_PROPERTIES allocProps;
} OutputPin;
typedef struct PullPin
{
/* inheritance C style! */
IPinImpl pin;
REFERENCE_TIME rtStart, rtCurrent, rtNext, rtStop;
IAsyncReader * pReader;
IMemAllocator * pAlloc;
SAMPLEPROC_PULL fnSampleProc;
PRECONNECTPROC fnPreConnect;
REQUESTPROC fnCustomRequest;
CLEANUPPROC fnCleanProc;
STOPPROCESSPROC fnDone;
double dRate;
BOOL stop_playback;
DWORD cbAlign;
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/* Any code that touches the thread must hold the thread lock,
* lock order: thread_lock and then the filter critical section
* also signal thread_sleepy so the thread knows to wake up
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*/
CRITICAL_SECTION thread_lock;
HANDLE hThread;
DWORD requested_state;
HANDLE hEventStateChanged, thread_sleepy;
DWORD state;
} PullPin;
#define Req_Sleepy 0
#define Req_Die 1
#define Req_Run 2
#define Req_Pause 3
/*** Constructors ***/
HRESULT InputPin_Construct(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PUSH pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, LPCRITICAL_SECTION pCritSec, IMemAllocator *, IPin ** ppPin);
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HRESULT OutputPin_Construct(const IPinVtbl *OutputPin_Vtbl, LONG outputpin_size, const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
HRESULT PullPin_Construct(const IPinVtbl *PullPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PULL pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, STOPPROCESSPROC, REQUESTPROC pCustomRequest, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
/**************************/
/*** Pin Implementation ***/
/* Common */
ULONG WINAPI IPinImpl_AddRef(IPin * iface);
HRESULT WINAPI IPinImpl_Disconnect(IPin * iface);
HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin);
HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt);
HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo);
HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir);
HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id);
HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum);
HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin);
/* Input Pin */
HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
ULONG WINAPI InputPin_Release(IPin * iface);
HRESULT WINAPI InputPin_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI InputPin_EndOfStream(IPin * iface);
HRESULT WINAPI InputPin_BeginFlush(IPin * iface);
HRESULT WINAPI InputPin_EndFlush(IPin * iface);
HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
/* Output Pin */
HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
ULONG WINAPI OutputPin_Release(IPin * iface);
HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI OutputPin_Disconnect(IPin * iface);
HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI OutputPin_EndOfStream(IPin * iface);
HRESULT WINAPI OutputPin_BeginFlush(IPin * iface);
HRESULT WINAPI OutputPin_EndFlush(IPin * iface);
HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
HRESULT OutputPin_CommitAllocator(OutputPin * This);
HRESULT OutputPin_DecommitAllocator(OutputPin * This);
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HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, REFERENCE_TIME * tStart, REFERENCE_TIME * tStop, DWORD dwFlags);
HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample);
HRESULT OutputPin_DeliverDisconnect(OutputPin * This);
/* Pull Pin */
HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
HRESULT WINAPI PullPin_Disconnect(IPin * iface);
HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
ULONG WINAPI PullPin_Release(IPin * iface);
HRESULT WINAPI PullPin_EndOfStream(IPin * iface);
HRESULT WINAPI PullPin_BeginFlush(IPin * iface);
HRESULT WINAPI PullPin_EndFlush(IPin * iface);
HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
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/* Thread interaction functions: Hold the thread_lock before calling them */
HRESULT PullPin_StartProcessing(PullPin * This);
HRESULT PullPin_PauseProcessing(PullPin * This);
HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds);