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/*
* Copyright (C) 2009-2010 Mamadou Diop.
*
* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
*
* This file is part of Open Source Doubango Framework.
*
* DOUBANGO is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* DOUBANGO 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with DOUBANGO.
*
*/
#include <tinydshow/DSUtils.h>
#include <atlbase.h>
#include <atlstr.h>
bool IsMainThread()
{
HWND hWnd = GetActiveWindow();
if(!hWnd) hWnd = GetForegroundWindow();
if(!hWnd) hWnd = GetConsoleWindow();
if(hWnd){
DWORD mainTid = GetWindowThreadProcessId(hWnd, NULL);
DWORD currentTid = GetCurrentThreadId();
return (mainTid == currentTid);
}
return false;
}
IPin *GetPin(IBaseFilter *filter, PIN_DIRECTION direction)
{
IEnumPins *enumPins = NULL;
IPin *pin = NULL;
HRESULT hr = filter->EnumPins(&enumPins);
if(!enumPins){
return NULL;
}
for(;;){
ULONG fetched = 0;
PIN_DIRECTION pinDir = PIN_DIRECTION(-1);
pin = NULL;
if (FAILED(enumPins->Next(1, &pin, &fetched))){
enumPins->Release();
return NULL;
}
if (fetched == 1 && pin){
pin->QueryDirection(&pinDir);
if(pinDir == direction){
break;
}
pin->Release();
}
}
enumPins->Release();
return pin;
}
HRESULT ConnectFilters(IGraphBuilder *graphBuilder, IBaseFilter *source, IBaseFilter *destination, AM_MEDIA_TYPE *mediaType)
{
HRESULT hr;
IPin *outPin = GetPin(source, PINDIR_OUTPUT);
IPin *inPin = GetPin(destination, PINDIR_INPUT);
if (mediaType != NULL){
hr = graphBuilder->ConnectDirect(outPin, inPin, mediaType);
}
else{
hr = graphBuilder->Connect(outPin, inPin);
}
SAFE_RELEASE(outPin);
SAFE_RELEASE(inPin);
return hr;
}
HRESULT DisconnectFilters(IGraphBuilder *graphBuilder, IBaseFilter *source, IBaseFilter *destination)
{
HRESULT hr;
IPin *outPin = GetPin(source, PINDIR_OUTPUT);
IPin *inPin = GetPin(destination, PINDIR_INPUT);
if (inPin){
hr = graphBuilder->Disconnect(inPin);
}
if (outPin){
hr = graphBuilder->Disconnect(outPin);
}
SAFE_RELEASE(outPin);
SAFE_RELEASE(inPin);
return hr;
}
bool DisconnectAllFilters(IGraphBuilder *graphBuilder)
{
CComPtr<IEnumFilters> filterEnum = NULL;
CComPtr<IBaseFilter> currentFilter = NULL;
ULONG fetched;
HRESULT hr;
hr = graphBuilder->EnumFilters(&filterEnum);
if (FAILED(hr)) return false;
while(filterEnum->Next(1, ¤tFilter, &fetched) == S_OK){
hr = DisconnectFilters(graphBuilder, currentFilter, currentFilter);
}
filterEnum.Release();
return true;
}
bool RemoveAllFilters(IGraphBuilder *graphBuilder)
{
CComPtr<IEnumFilters> filterEnum = NULL;
CComPtr<IBaseFilter> currentFilter = NULL;
ULONG fetched;
HRESULT hr;
hr = graphBuilder->EnumFilters(&filterEnum);
if (FAILED(hr)) return false;
while(filterEnum->Next(1, ¤tFilter, &fetched) == S_OK){
hr = graphBuilder->RemoveFilter(currentFilter);
if (FAILED(hr)){
filterEnum.Release();
return false;
}
currentFilter.Release();
filterEnum->Reset();
}
filterEnum.Release();
return true;
}
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