summaryrefslogtreecommitdiffstats
path: root/src/plugins/directshow/helpers/directshowutils.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/plugins/directshow/helpers/directshowutils.cpp')
-rw-r--r--src/plugins/directshow/helpers/directshowutils.cpp309
1 files changed, 0 insertions, 309 deletions
diff --git a/src/plugins/directshow/helpers/directshowutils.cpp b/src/plugins/directshow/helpers/directshowutils.cpp
deleted file mode 100644
index d9701fd99..000000000
--- a/src/plugins/directshow/helpers/directshowutils.cpp
+++ /dev/null
@@ -1,309 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "directshowutils.h"
-
-/**
- * @brief DirectShowUtils::isPinConnected
- * @param pin
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::isPinConnected(IPin *pin, HRESULT *hrOut)
-{
- IPin *connectedPin = nullptr;
- const ScopedSafeRelease<IPin> releasePin { &connectedPin };
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- *hrOut = pin->ConnectedTo(&connectedPin);
- if (*hrOut == VFW_E_NOT_CONNECTED) // Not an error in this case
- *hrOut = S_OK;
-
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Querying pin connection failed!");
- return false;
- }
-
- return true;
-}
-
-/**
- * @brief DirectShowUtils::hasPinDirection
- * @param pin
- * @param direction
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::hasPinDirection(IPin *pin, PIN_DIRECTION direction, HRESULT *hrOut)
-{
- PIN_DIRECTION pinDir;
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- *hrOut = pin->QueryDirection(&pinDir);
-
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Querying pin direction failed!");
- return false;
- }
-
- return (pinDir == direction);
-}
-
-/**
- * @brief DirectShowUtils::getPin
- * @param filter
- * @param pinDirection
- * @param pin
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::getPin(IBaseFilter *filter, PIN_DIRECTION pinDirection, IPin **pin, HRESULT *hrOut)
-{
- IEnumPins *enumPins = nullptr;
- const ScopedSafeRelease<IEnumPins> releaseEnumPins { &enumPins };
- HRESULT hr S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- *hrOut = filter->EnumPins(&enumPins);
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Unable to retrieve pins from the filter!");
- return false;
- }
-
- enumPins->Reset();
- IPin *nextPin = nullptr;
- while (enumPins->Next(1, &nextPin, NULL) == S_OK) {
- const ScopedSafeRelease<IPin> releasePin { &nextPin };
- PIN_DIRECTION currentPinDir;
- *hrOut = nextPin->QueryDirection(&currentPinDir);
- if (currentPinDir == pinDirection) {
- *pin = nextPin;
- (*pin)->AddRef();
- return true;
- }
- }
-
- return false;
-}
-
-/**
- * @brief DirectShowUtils::matchPin
- * @param pin
- * @param pinDirection
- * @param shouldBeConnected
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::matchPin(IPin *pin, PIN_DIRECTION pinDirection, BOOL shouldBeConnected, HRESULT *hrOut)
-{
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- const BOOL isConnected = isPinConnected(pin, hrOut);
- if (FAILED(*hrOut)) // Error reason will already be logged, so just return.
- return false;
-
- if (isConnected == shouldBeConnected)
- return hasPinDirection(pin, pinDirection, hrOut);
-
- return SUCCEEDED(*hrOut);
-}
-
-/**
- * @brief DirectShowUtils::findUnconnectedPin
- * @param filter
- * @param pinDirection
- * @param pin
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::findUnconnectedPin(IBaseFilter *filter, PIN_DIRECTION pinDirection, IPin **pin, HRESULT *hrOut)
-{
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- IEnumPins *enumPins = nullptr;
- const ScopedSafeRelease<IEnumPins> releaseEnumPins { &enumPins };
- *hrOut = filter->EnumPins(&enumPins);
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Unable to retrieve pins from the DS filter");
- return false;
- }
-
- IPin *nextPin = nullptr;
- while (S_OK == enumPins->Next(1, &nextPin, nullptr)) {
- const ScopedSafeRelease<IPin> releaseNextPin { &nextPin };
- if (matchPin(nextPin, pinDirection, FALSE, hrOut)) {
- *pin = nextPin;
- (*pin)->AddRef();
- return true;
- }
-
- if (FAILED(*hrOut))
- return false;
- }
-
- qCDebug(qtDirectShowPlugin, "No unconnected pins found");
- *hrOut = VFW_E_NOT_FOUND;
-
- return false;
-}
-
-/**
- * @brief DirectShowUtils::connectFilters - Attempts to connect \a outputPin to \a filter
- * @param graph
- * @param outputPin
- * @param filter
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::connectFilters(IGraphBuilder *graph, IPin *outputPin, IBaseFilter *filter, HRESULT *hrOut)
-{
-
- // Find an input pin on the downstream filter.
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- IPin *inputPin = nullptr;
- const ScopedSafeRelease<IPin> releaseInputPin { &inputPin };
- if (!findUnconnectedPin(filter, PINDIR_INPUT, &inputPin, hrOut))
- return false;
-
-
- // Try to connect them.
- *hrOut = graph->Connect(outputPin, inputPin);
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Unable to connect output pin to filter!");
- return false;
- }
-
- return true;
-}
-
-/**
- * @brief DirectShowUtils::connectFilters - Attempts to connect \a filter to \a inputPin.
- * @param graph
- * @param filter
- * @param inputPin
- * @param hrOut
- * @return
- */
-bool DirectShowUtils::connectFilters(IGraphBuilder *graph, IBaseFilter *filter, IPin *inputPin, HRESULT *hrOut)
-{
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- IPin *outputPin = nullptr;
- const ScopedSafeRelease<IPin> releaseOutputPin { &outputPin };
- // Find an output pin on the upstream filter.
- if (findUnconnectedPin(filter, PINDIR_OUTPUT, &outputPin, hrOut))
- return false;
-
- *hrOut = graph->Connect(outputPin, inputPin);
- if (FAILED(*hrOut)) {
- qCDebug(qtDirectShowPlugin, "Unable to connect filter to input pin!");
- return false;
- }
-
- return true;
-}
-
-/**
- * @brief DirectShowUtils::connectFilters - Attempts to connect the \a upstreamFilter to \a downstreamFilter.
- * @param graph
- * @param upstreamFilter
- * @param downstreamFilter
- * @param autoConnect - If set to true all filters in the graph will be considered.
- * @param hrOut
- * @return true if the the filters were connected, false otherwise.
- */
-bool DirectShowUtils::connectFilters(IGraphBuilder *graph,
- IBaseFilter *upstreamFilter,
- IBaseFilter *downstreamFilter,
- bool autoConnect,
- HRESULT *hrOut)
-{
- HRESULT hr = S_OK;
- if (!hrOut)
- hrOut = &hr;
-
- const auto findAndConnect = [graph, downstreamFilter, hrOut](IBaseFilter *filter) -> bool {
- IPin *outputPin = nullptr;
- const ScopedSafeRelease<IPin> releaseOutputPin { &outputPin };
- if (findUnconnectedPin(filter, PINDIR_OUTPUT, &outputPin, hrOut))
- return connectFilters(graph, outputPin, downstreamFilter, hrOut);
-
- return false;
- };
-
- // Try to connect to the upstream filter first.
- if (findAndConnect(upstreamFilter))
- return S_OK;
-
- const auto getFilters = [graph, hrOut]() -> IEnumFilters * {
- IEnumFilters *f = nullptr;
- *hrOut = graph->EnumFilters(&f);
- return f;
- };
- IEnumFilters *filters = autoConnect ? getFilters()
- : nullptr;
- const ScopedSafeRelease<IEnumFilters> releaseEnumFilters { &filters };
- if (!filters) {
- qCDebug(qtDirectShowPlugin, "No filters found!");
- return false;
- }
-
- IBaseFilter *nextFilter = nullptr;
- while (S_OK == filters->Next(1, &nextFilter, 0)) {
- const ScopedSafeRelease<IBaseFilter> releaseNextFilter { &nextFilter };
- if (nextFilter && findAndConnect(nextFilter))
- break;
- }
-
- return SUCCEEDED(*hrOut);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-21 14:14:24 +0000