mirror of
https://github.com/reactos/reactos.git
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301 lines
9.7 KiB
C
301 lines
9.7 KiB
C
/*
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* Generic Implementation of COutputQueue
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*
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* Copyright 2011 Aric Stewart, CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define COBJMACROS
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#include "dshow.h"
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#include "wine/debug.h"
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#include "wine/unicode.h"
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#include "wine/list.h"
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#include "wine/strmbase.h"
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#include "uuids.h"
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#include "vfwmsgs.h"
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#include <assert.h>
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WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
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enum {SAMPLE_PACKET, EOS_PACKET};
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typedef struct tagQueuedEvent {
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int type;
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struct list entry;
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IMediaSample *pSample;
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} QueuedEvent;
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static DWORD WINAPI OutputQueue_InitialThreadProc(LPVOID data)
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{
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OutputQueue *This = (OutputQueue *)data;
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return This->pFuncsTable->pfnThreadProc(This);
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}
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static void OutputQueue_FreeSamples(OutputQueue *pOutputQueue)
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{
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struct list *cursor, *cursor2;
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LIST_FOR_EACH_SAFE(cursor, cursor2, &pOutputQueue->SampleList)
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{
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QueuedEvent *qev = LIST_ENTRY(cursor, QueuedEvent, entry);
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list_remove(cursor);
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HeapFree(GetProcessHeap(),0,qev);
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}
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}
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HRESULT WINAPI OutputQueue_Construct(
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BaseOutputPin *pInputPin,
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BOOL bAuto,
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BOOL bQueue,
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LONG lBatchSize,
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BOOL bBatchExact,
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DWORD dwPriority,
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const OutputQueueFuncTable* pFuncsTable,
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OutputQueue **ppOutputQueue )
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{
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BOOL threaded = FALSE;
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DWORD tid;
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OutputQueue *This;
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if (!pInputPin || !pFuncsTable || !ppOutputQueue)
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return E_INVALIDARG;
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*ppOutputQueue = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(OutputQueue));
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if (!*ppOutputQueue)
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return E_OUTOFMEMORY;
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This = *ppOutputQueue;
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This->pFuncsTable = pFuncsTable;
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This->lBatchSize = lBatchSize;
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This->bBatchExact = bBatchExact;
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InitializeCriticalSection(&This->csQueue);
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This->csQueue.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": OutputQueue.csQueue");
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list_init(&This->SampleList);
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This->pInputPin = pInputPin;
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IPin_AddRef(&pInputPin->pin.IPin_iface);
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EnterCriticalSection(&This->csQueue);
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if (bAuto && pInputPin->pMemInputPin)
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threaded = IMemInputPin_ReceiveCanBlock(pInputPin->pMemInputPin) == S_OK;
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else
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threaded = bQueue;
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if (threaded)
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{
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This->hThread = CreateThread(NULL, 0, OutputQueue_InitialThreadProc, This, 0, &tid);
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if (This->hThread)
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{
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SetThreadPriority(This->hThread, dwPriority);
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This->hProcessQueue = CreateEventW(NULL, 0, 0, NULL);
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}
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}
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LeaveCriticalSection(&This->csQueue);
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return S_OK;
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}
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HRESULT WINAPI OutputQueue_Destroy(OutputQueue *pOutputQueue)
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{
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EnterCriticalSection(&pOutputQueue->csQueue);
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OutputQueue_FreeSamples(pOutputQueue);
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pOutputQueue->bTerminate = TRUE;
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SetEvent(pOutputQueue->hProcessQueue);
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LeaveCriticalSection(&pOutputQueue->csQueue);
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pOutputQueue->csQueue.DebugInfo->Spare[0] = 0;
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DeleteCriticalSection(&pOutputQueue->csQueue);
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CloseHandle(pOutputQueue->hProcessQueue);
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IPin_Release(&pOutputQueue->pInputPin->pin.IPin_iface);
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HeapFree(GetProcessHeap(),0,pOutputQueue);
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return S_OK;
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}
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HRESULT WINAPI OutputQueue_ReceiveMultiple(OutputQueue *pOutputQueue, IMediaSample **ppSamples, LONG nSamples, LONG *nSamplesProcessed)
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{
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HRESULT hr = S_OK;
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int i;
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if (!pOutputQueue->pInputPin->pin.pConnectedTo || !pOutputQueue->pInputPin->pMemInputPin)
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return VFW_E_NOT_CONNECTED;
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if (!pOutputQueue->hThread)
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{
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IMemInputPin_AddRef(pOutputQueue->pInputPin->pMemInputPin);
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hr = IMemInputPin_ReceiveMultiple(pOutputQueue->pInputPin->pMemInputPin,ppSamples, nSamples, nSamplesProcessed);
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IMemInputPin_Release(pOutputQueue->pInputPin->pMemInputPin);
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}
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else
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{
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EnterCriticalSection(&pOutputQueue->csQueue);
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*nSamplesProcessed = 0;
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for (i = 0; i < nSamples; i++)
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{
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QueuedEvent *qev = HeapAlloc(GetProcessHeap(),0,sizeof(QueuedEvent));
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if (!qev)
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{
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ERR("Out of Memory\n");
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hr = E_OUTOFMEMORY;
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break;
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}
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qev->type = SAMPLE_PACKET;
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qev->pSample = ppSamples[i];
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IMediaSample_AddRef(ppSamples[i]);
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list_add_tail(&pOutputQueue->SampleList, &qev->entry);
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(*nSamplesProcessed)++;
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}
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if (!pOutputQueue->bBatchExact || list_count(&pOutputQueue->SampleList) >= pOutputQueue->lBatchSize)
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SetEvent(pOutputQueue->hProcessQueue);
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LeaveCriticalSection(&pOutputQueue->csQueue);
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}
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return hr;
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}
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HRESULT WINAPI OutputQueue_Receive(OutputQueue *pOutputQueue, IMediaSample *pSample)
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{
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LONG processed;
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return OutputQueue_ReceiveMultiple(pOutputQueue,&pSample,1,&processed);
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}
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VOID WINAPI OutputQueue_SendAnyway(OutputQueue *pOutputQueue)
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{
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if (pOutputQueue->hThread)
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{
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EnterCriticalSection(&pOutputQueue->csQueue);
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if (!list_empty(&pOutputQueue->SampleList))
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{
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pOutputQueue->bSendAnyway = TRUE;
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SetEvent(pOutputQueue->hProcessQueue);
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}
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LeaveCriticalSection(&pOutputQueue->csQueue);
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}
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}
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VOID WINAPI OutputQueue_EOS(OutputQueue *pOutputQueue)
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{
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EnterCriticalSection(&pOutputQueue->csQueue);
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if (pOutputQueue->hThread)
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{
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QueuedEvent *qev = HeapAlloc(GetProcessHeap(),0,sizeof(QueuedEvent));
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if (!qev)
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{
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ERR("Out of Memory\n");
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LeaveCriticalSection(&pOutputQueue->csQueue);
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return;
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}
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qev->type = EOS_PACKET;
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qev->pSample = NULL;
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list_add_tail(&pOutputQueue->SampleList, &qev->entry);
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}
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else
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{
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IPin* ppin = NULL;
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IPin_ConnectedTo(&pOutputQueue->pInputPin->pin.IPin_iface, &ppin);
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if (ppin)
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{
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IPin_EndOfStream(ppin);
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IPin_Release(ppin);
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}
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}
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LeaveCriticalSection(&pOutputQueue->csQueue);
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/* Covers sending the Event to the worker Thread */
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OutputQueue_SendAnyway(pOutputQueue);
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}
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DWORD WINAPI OutputQueueImpl_ThreadProc(OutputQueue *pOutputQueue)
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{
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do
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{
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EnterCriticalSection(&pOutputQueue->csQueue);
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if (!list_empty(&pOutputQueue->SampleList) &&
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(!pOutputQueue->bBatchExact ||
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list_count(&pOutputQueue->SampleList) >= pOutputQueue->lBatchSize ||
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pOutputQueue->bSendAnyway
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)
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)
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{
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while (!list_empty(&pOutputQueue->SampleList))
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{
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IMediaSample **ppSamples;
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LONG nSamples;
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LONG nSamplesProcessed;
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struct list *cursor, *cursor2;
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int i = 0;
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/* First Pass Process Samples */
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i = list_count(&pOutputQueue->SampleList);
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ppSamples = HeapAlloc(GetProcessHeap(),0,sizeof(IMediaSample*) * i);
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nSamples = 0;
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LIST_FOR_EACH_SAFE(cursor, cursor2, &pOutputQueue->SampleList)
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{
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QueuedEvent *qev = LIST_ENTRY(cursor, QueuedEvent, entry);
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if (qev->type == SAMPLE_PACKET)
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ppSamples[nSamples++] = qev->pSample;
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else
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break;
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list_remove(cursor);
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HeapFree(GetProcessHeap(),0,qev);
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}
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if (pOutputQueue->pInputPin->pin.pConnectedTo && pOutputQueue->pInputPin->pMemInputPin)
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{
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IMemInputPin_AddRef(pOutputQueue->pInputPin->pMemInputPin);
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LeaveCriticalSection(&pOutputQueue->csQueue);
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IMemInputPin_ReceiveMultiple(pOutputQueue->pInputPin->pMemInputPin, ppSamples, nSamples, &nSamplesProcessed);
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EnterCriticalSection(&pOutputQueue->csQueue);
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IMemInputPin_Release(pOutputQueue->pInputPin->pMemInputPin);
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}
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for (i = 0; i < nSamples; i++)
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IMediaSample_Release(ppSamples[i]);
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HeapFree(GetProcessHeap(),0,ppSamples);
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/* Process Non-Samples */
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LIST_FOR_EACH_SAFE(cursor, cursor2, &pOutputQueue->SampleList)
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{
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QueuedEvent *qev = LIST_ENTRY(cursor, QueuedEvent, entry);
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if (qev->type == EOS_PACKET)
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{
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IPin* ppin = NULL;
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IPin_ConnectedTo(&pOutputQueue->pInputPin->pin.IPin_iface, &ppin);
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if (ppin)
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{
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IPin_EndOfStream(ppin);
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IPin_Release(ppin);
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}
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}
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else if (qev->type == SAMPLE_PACKET)
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break;
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else
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FIXME("Unhandled Event type %i\n",qev->type);
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list_remove(cursor);
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HeapFree(GetProcessHeap(),0,qev);
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}
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}
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pOutputQueue->bSendAnyway = FALSE;
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}
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LeaveCriticalSection(&pOutputQueue->csQueue);
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WaitForSingleObject(pOutputQueue->hProcessQueue, INFINITE);
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}
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while (!pOutputQueue->bTerminate);
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return S_OK;
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}
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