author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 14:26:25 +0300 | |
changeset 11 | 06b8e2af4411 |
parent 4 | 90517678cc4f |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the Qt Mobility Components. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#include "directshowaudioendpointcontrol.h" |
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#include "directshowglobal.h" |
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#include "directshowplayerservice.h" |
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DirectShowAudioEndpointControl::DirectShowAudioEndpointControl( |
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DirectShowPlayerService *service, QObject *parent) |
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: QAudioEndpointSelector(parent) |
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, m_service(service) |
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, m_bindContext(0) |
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, m_deviceEnumerator(0) |
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{ |
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if (CreateBindCtx(0, &m_bindContext) == S_OK) { |
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m_deviceEnumerator = com_new<ICreateDevEnum>(CLSID_SystemDeviceEnum, IID_ICreateDevEnum); |
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updateEndpoints(); |
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setActiveEndpoint(m_defaultEndpoint); |
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} |
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} |
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DirectShowAudioEndpointControl::~DirectShowAudioEndpointControl() |
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{ |
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foreach (IMoniker *moniker, m_devices) |
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moniker->Release(); |
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if (m_bindContext) |
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m_bindContext->Release(); |
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if (m_deviceEnumerator) |
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m_deviceEnumerator->Release(); |
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} |
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QList<QString> DirectShowAudioEndpointControl::availableEndpoints() const |
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{ |
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return m_devices.keys(); |
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} |
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QString DirectShowAudioEndpointControl::endpointDescription(const QString &name) const |
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{ |
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#ifdef __IPropertyBag_INTERFACE_DEFINED__ |
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QString description; |
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if (IMoniker *moniker = m_devices.value(name, 0)) { |
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IPropertyBag *propertyBag = 0; |
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if (SUCCEEDED(moniker->BindToStorage( |
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0, 0, IID_IPropertyBag, reinterpret_cast<void **>(&propertyBag)))) { |
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VARIANT name; |
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VariantInit(&name); |
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if (SUCCEEDED(propertyBag->Read(L"FriendlyName", &name, 0))) |
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description = QString::fromWCharArray(name.bstrVal); |
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VariantClear(&name); |
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propertyBag->Release(); |
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} |
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} |
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return description; |
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#else |
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return name.section(QLatin1Char('\\'), -1); |
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#endif |
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} |
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QString DirectShowAudioEndpointControl::defaultEndpoint() const |
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{ |
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return m_defaultEndpoint; |
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} |
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|
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QString DirectShowAudioEndpointControl::activeEndpoint() const |
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{ |
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return m_activeEndpoint; |
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} |
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|
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void DirectShowAudioEndpointControl::setActiveEndpoint(const QString &name) |
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{ |
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if (m_activeEndpoint == name) |
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return; |
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|
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if (IMoniker *moniker = m_devices.value(name, 0)) { |
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IBaseFilter *filter = 0; |
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|
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if (moniker->BindToObject( |
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m_bindContext, |
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0, |
4
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IID_IBaseFilter, |
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reinterpret_cast<void **>(&filter)) == S_OK) { |
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m_service->setAudioOutput(filter); |
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|
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filter->Release(); |
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} |
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} |
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} |
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|
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void DirectShowAudioEndpointControl::updateEndpoints() |
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{ |
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IMalloc *oleMalloc = 0; |
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if (m_deviceEnumerator && CoGetMalloc(1, &oleMalloc) == S_OK) { |
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IEnumMoniker *monikers = 0; |
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|
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if (m_deviceEnumerator->CreateClassEnumerator( |
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CLSID_AudioRendererCategory, &monikers, 0) == S_OK) { |
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for (IMoniker *moniker = 0; monikers->Next(1, &moniker, 0) == S_OK; moniker->Release()) { |
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OLECHAR *string = 0; |
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if (moniker->GetDisplayName(m_bindContext, 0, &string) == S_OK) { |
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QString deviceId = QString::fromWCharArray(string); |
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oleMalloc->Free(string); |
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moniker->AddRef(); |
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m_devices.insert(deviceId, moniker); |
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if (m_defaultEndpoint.isEmpty() |
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|| deviceId.endsWith(QLatin1String("Default DirectSound Device"))) { |
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m_defaultEndpoint = deviceId; |
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} |
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} |
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} |
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monikers->Release(); |
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} |
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oleMalloc->Release(); |
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} |
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} |