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strmbase: Create OutputQueue for queuing outgoing samples.

oldstable
Aric Stewart 2011-04-05 12:55:47 -05:00 committed by Alexandre Julliard
parent 88b4bbfc6a
commit 928994d986
3 changed files with 259 additions and 0 deletions
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1
dlls/strmbase/Makefile.in
View File

@ -5,6 +5,7 @@ C_SRCS = \
enumpins.c \
filter.c \
mediatype.c \
outputqueue.c \
pin.c \
qualitycontrol.c \
seeking.c \

225
dlls/strmbase/outputqueue.c 100644
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@ -0,0 +1,225 @@
/*
* Generic Implementation of COutputQueue
*
* Copyright 2011 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
*/
#define COBJMACROS
#include "dshow.h"
#include "wine/debug.h"
#include "wine/unicode.h"
#include "wine/list.h"
#include "wine/strmbase.h"
#include "uuids.h"
#include "vfwmsgs.h"
#include <assert.h>
WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
typedef struct tagQueuedEvent {
struct list entry;
IMediaSample *pSample;
} QueuedEvent;
static DWORD WINAPI OutputQueue_InitialThreadProc(LPVOID data)
{
OutputQueue *This = (OutputQueue *)data;
return This->pFuncsTable->pfnThreadProc(This);
}
static void OutputQueue_FreeSamples(OutputQueue *pOutputQueue)
{
struct list *cursor, *cursor2;
LIST_FOR_EACH_SAFE(cursor, cursor2, pOutputQueue->SampleList)
{
QueuedEvent *qev = LIST_ENTRY(cursor, QueuedEvent, entry);
list_remove(cursor);
HeapFree(GetProcessHeap(),0,qev);
}
}
HRESULT WINAPI OutputQueue_Construct(
BaseOutputPin *pInputPin,
BOOL bAuto,
BOOL bQueue,
LONG lBatchSize,
BOOL bBatchExact,
DWORD dwPriority,
const OutputQueueFuncTable* pFuncsTable,
OutputQueue **ppOutputQueue )
{
HRESULT hr = S_OK;
BOOL threaded = FALSE;
DWORD tid;
OutputQueue *This;
if (!pInputPin || !pFuncsTable || !ppOutputQueue)
return E_INVALIDARG;
*ppOutputQueue = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(OutputQueue));
if (!*ppOutputQueue)
return E_OUTOFMEMORY;
This = *ppOutputQueue;
This->pFuncsTable = pFuncsTable;
This->lBatchSize = lBatchSize;
This->bBatchExact = bBatchExact;
InitializeCriticalSection(&This->csQueue);
This->csQueue.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": OutputQueue.csQueue");
This->SampleList = HeapAlloc(GetProcessHeap(),0,sizeof(struct list));
if (!This->SampleList)
{
OutputQueue_Destroy(This);
*ppOutputQueue = NULL;
return E_OUTOFMEMORY;
}
list_init(This->SampleList);
This->pInputPin = pInputPin;
IPin_AddRef((IPin*)pInputPin);
EnterCriticalSection(&This->csQueue);
if (bAuto && pInputPin->pMemInputPin)
threaded = IMemInputPin_ReceiveCanBlock(pInputPin->pMemInputPin);
else
threaded = bQueue;
if (threaded)
{
This->hThread = CreateThread(NULL, 0, OutputQueue_InitialThreadProc, This, 0, &tid);
if (This->hThread)
{
SetThreadPriority(This->hThread, dwPriority);
This->hProcessQueue = CreateEventW(NULL, 0, 0, NULL);
}
}
LeaveCriticalSection(&This->csQueue);
return hr;
}
HRESULT WINAPI OutputQueue_Destroy(OutputQueue *pOutputQueue)
{
EnterCriticalSection(&pOutputQueue->csQueue);
OutputQueue_FreeSamples(pOutputQueue);
pOutputQueue->bTerminate = TRUE;
SetEvent(pOutputQueue->hProcessQueue);
LeaveCriticalSection(&pOutputQueue->csQueue);
DeleteCriticalSection(&pOutputQueue->csQueue);
CloseHandle(pOutputQueue->hProcessQueue);
if (pOutputQueue->SampleList)
HeapFree(GetProcessHeap(),0,pOutputQueue->SampleList);
IPin_Release((IPin*)pOutputQueue->pInputPin);
HeapFree(GetProcessHeap(),0,pOutputQueue);
return S_OK;
}
HRESULT WINAPI OutputQueue_ReceiveMultiple(OutputQueue *pOutputQueue, IMediaSample **ppSamples, LONG nSamples, LONG *nSamplesProcessed)
{
HRESULT hr = S_OK;
int i;
if (!pOutputQueue->pInputPin->pin.pConnectedTo || !pOutputQueue->pInputPin->pMemInputPin)
return VFW_E_NOT_CONNECTED;
if (!pOutputQueue->hThread)
{
IMemInputPin_AddRef(pOutputQueue->pInputPin->pMemInputPin);
hr = IMemInputPin_ReceiveMultiple(pOutputQueue->pInputPin->pMemInputPin,ppSamples, nSamples, nSamplesProcessed);
IMemInputPin_Release(pOutputQueue->pInputPin->pMemInputPin);
}
else
{
EnterCriticalSection(&pOutputQueue->csQueue);
*nSamplesProcessed = 0;
for (i = 0; i < nSamples; i++)
{
QueuedEvent *qev = HeapAlloc(GetProcessHeap(),0,sizeof(QueuedEvent));
if (!qev)
{
ERR("Out of Memory\n");
hr = E_OUTOFMEMORY;
break;
}
qev->pSample = ppSamples[i];
IMediaSample_AddRef(ppSamples[i]);
list_add_tail(pOutputQueue->SampleList, &qev->entry);
(*nSamplesProcessed)++;
}
LeaveCriticalSection(&pOutputQueue->csQueue);
if (!pOutputQueue->bBatchExact || list_count(pOutputQueue->SampleList) >= pOutputQueue->lBatchSize)
SetEvent(pOutputQueue->hProcessQueue);
}
return hr;
}
HRESULT WINAPI OutputQueue_Receive(OutputQueue *pOutputQueue, IMediaSample *pSample)
{
LONG processed;
return OutputQueue_ReceiveMultiple(pOutputQueue,&pSample,1,&processed);
}
DWORD WINAPI OutputQueueImpl_ThreadProc(OutputQueue *pOutputQueue)
{
do
{
EnterCriticalSection(&pOutputQueue->csQueue);
if (list_count(pOutputQueue->SampleList) > 0 &&
(!pOutputQueue->bBatchExact ||
list_count(pOutputQueue->SampleList) >= pOutputQueue->lBatchSize))
{
IMediaSample **ppSamples;
LONG nSamples;
LONG nSamplesProcessed;
struct list *cursor, *cursor2;
int i = 0;
nSamples = list_count(pOutputQueue->SampleList);
ppSamples = HeapAlloc(GetProcessHeap(),0,sizeof(IMediaSample*) * nSamples);
LIST_FOR_EACH_SAFE(cursor, cursor2, pOutputQueue->SampleList)
{
QueuedEvent *qev = LIST_ENTRY(cursor, QueuedEvent, entry);
list_remove(cursor);
ppSamples[i++] = qev->pSample;
HeapFree(GetProcessHeap(),0,qev);
}
if (pOutputQueue->pInputPin->pin.pConnectedTo && pOutputQueue->pInputPin->pMemInputPin)
{
IMemInputPin_AddRef(pOutputQueue->pInputPin->pMemInputPin);
IMemInputPin_ReceiveMultiple(pOutputQueue->pInputPin->pMemInputPin, ppSamples, nSamples, &nSamplesProcessed);
IMemInputPin_Release(pOutputQueue->pInputPin->pMemInputPin);
}
for (i = 0; i < nSamples; i++)
IUnknown_Release(ppSamples[i]);
HeapFree(GetProcessHeap(),0,ppSamples);
}
LeaveCriticalSection(&pOutputQueue->csQueue);
WaitForSingleObject(pOutputQueue->hProcessQueue, INFINITE);
}
while (!pOutputQueue->bTerminate);
return S_OK;
}

33
include/wine/strmbase.h
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@ -346,6 +346,39 @@ typedef struct tagFactoryTemplate {
HRESULT WINAPI AMovieDllRegisterServer2(BOOL bRegister);
HRESULT WINAPI AMovieSetupRegisterFilter2(const AMOVIESETUP_FILTER *pFilter, IFilterMapper2 *pIFM2, BOOL bRegister);
/* Output Queue */
typedef struct tagOutputQueue {
CRITICAL_SECTION csQueue;
BaseOutputPin * pInputPin;
HANDLE hThread;
HANDLE hProcessQueue;
LONG lBatchSize;
BOOL bBatchExact;
BOOL bTerminate;
struct list *SampleList;
const struct OutputQueueFuncTable* pFuncsTable;
} OutputQueue;
typedef DWORD (WINAPI *OutputQueue_ThreadProc)(OutputQueue *This);
typedef struct OutputQueueFuncTable
{
OutputQueue_ThreadProc pfnThreadProc;
} OutputQueueFuncTable;
HRESULT WINAPI OutputQueue_Construct( BaseOutputPin *pInputPin, BOOL bAuto,
BOOL bQueue, LONG lBatchSize, BOOL bBatchExact, DWORD dwPriority,
const OutputQueueFuncTable* pFuncsTable, OutputQueue **ppOutputQueue );
HRESULT WINAPI OutputQueue_Destroy(OutputQueue *pOutputQueue);
HRESULT WINAPI OutputQueue_ReceiveMultiple(OutputQueue *pOutputQueue, IMediaSample **ppSamples, LONG nSamples, LONG *nSamplesProcessed);
HRESULT WINAPI OutputQueue_Receive(OutputQueue *pOutputQueue, IMediaSample *pSample);
DWORD WINAPI OutputQueueImpl_ThreadProc(OutputQueue *pOutputQueue);
/* Dll Functions */
BOOL WINAPI STRMBASE_DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv);
HRESULT WINAPI STRMBASE_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv);