94caca7105
- The usual elimination of main/source etc. - Fully qualify "public" includes. - Use lowercase for all directory names. Review URL: https://webrtc-codereview.appspot.com/933010 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3025 4adac7df-926f-26a2-2b94-8c16560cd09d
115 lines
2.9 KiB
C++
115 lines
2.9 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "help_functions_windows.h"
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namespace webrtc
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{
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namespace videocapturemodule
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{
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// This returns minimum :), which will give max frame rate...
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LONGLONG GetMaxOfFrameArray(LONGLONG *maxFps, long size)
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{
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LONGLONG maxFPS = maxFps[0];
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for (int i = 0; i < size; i++)
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{
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if (maxFPS > maxFps[i])
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maxFPS = maxFps[i];
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}
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return maxFPS;
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}
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IPin* GetInputPin(IBaseFilter* filter)
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{
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HRESULT hr;
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IPin* pin = NULL;
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IEnumPins* pPinEnum = NULL;
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filter->EnumPins(&pPinEnum);
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if (pPinEnum == NULL)
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{
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return NULL;
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}
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// get first unconnected pin
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hr = pPinEnum->Reset(); // set to first pin
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while (S_OK == pPinEnum->Next(1, &pin, NULL))
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{
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PIN_DIRECTION pPinDir;
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pin->QueryDirection(&pPinDir);
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if (PINDIR_INPUT == pPinDir) // This is an input pin
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{
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IPin* tempPin = NULL;
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if (S_OK != pin->ConnectedTo(&tempPin)) // The pint is not connected
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{
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pPinEnum->Release();
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return pin;
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}
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}
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pin->Release();
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}
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pPinEnum->Release();
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return NULL;
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}
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IPin* GetOutputPin(IBaseFilter* filter, REFGUID Category)
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{
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HRESULT hr;
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IPin* pin = NULL;
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IEnumPins* pPinEnum = NULL;
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filter->EnumPins(&pPinEnum);
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if (pPinEnum == NULL)
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{
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return NULL;
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}
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// get first unconnected pin
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hr = pPinEnum->Reset(); // set to first pin
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while (S_OK == pPinEnum->Next(1, &pin, NULL))
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{
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PIN_DIRECTION pPinDir;
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pin->QueryDirection(&pPinDir);
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if (PINDIR_OUTPUT == pPinDir) // This is an output pin
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{
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if (Category == GUID_NULL || PinMatchesCategory(pin, Category))
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{
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pPinEnum->Release();
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return pin;
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}
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}
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pin->Release();
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pin = NULL;
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}
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pPinEnum->Release();
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return NULL;
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}
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BOOL PinMatchesCategory(IPin *pPin, REFGUID Category)
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{
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BOOL bFound = FALSE;
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IKsPropertySet *pKs = NULL;
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HRESULT hr = pPin->QueryInterface(IID_PPV_ARGS(&pKs));
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if (SUCCEEDED(hr))
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{
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GUID PinCategory;
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DWORD cbReturned;
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hr = pKs->Get(AMPROPSETID_Pin, AMPROPERTY_PIN_CATEGORY, NULL, 0, &PinCategory,
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sizeof(GUID), &cbReturned);
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if (SUCCEEDED(hr) && (cbReturned == sizeof(GUID)))
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{
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bFound = (PinCategory == Category);
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}
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pKs->Release();
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}
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return bFound;
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}
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} // namespace videocapturemodule
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} // namespace webrtc
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