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/* This file is part of the KDE project. |
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|
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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|
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This library is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License as published by |
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the Free Software Foundation, either version 2.1 or 3 of the License. |
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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 |
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GNU 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 License |
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along with this library. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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#include "fakesource.h" |
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#include "iodevicereader.h" |
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#include "qaudiocdreader.h" |
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|
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#include "mediagraph.h" |
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#include "mediaobject.h" |
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|
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|
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#include <QtCore/QUrl> |
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#include <QtCore/QDebug> |
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|
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#include <qnetwork.h> |
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|
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|
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QT_BEGIN_NAMESPACE |
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|
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namespace Phonon |
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{ |
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namespace DS9 |
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{ |
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//description of a connection |
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struct GraphConnection |
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{ |
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Filter output; |
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int outputOffset; |
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Filter input; |
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int inputOffset; |
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}; |
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|
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static QList<GraphConnection> getConnections(Filter source) |
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{ |
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QList<GraphConnection> ret; |
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int outOffset = 0; |
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const QList<OutputPin> outputs = BackendNode::pins(source, PINDIR_OUTPUT); |
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for (int i = 0; i < outputs.count(); ++i) { |
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InputPin input; |
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if (outputs.at(i)->ConnectedTo(input.pparam()) == S_OK) { |
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PIN_INFO info; |
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input->QueryPinInfo(&info); |
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Filter current(info.pFilter); |
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if (current) { |
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//this is a valid connection |
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const int inOffset = BackendNode::pins(current, PINDIR_INPUT).indexOf(input); |
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const GraphConnection connection = {source, outOffset, current, inOffset}; |
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ret += connection; |
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ret += getConnections(current); //get subsequent connections |
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} |
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} |
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outOffset++; |
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} |
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return ret; |
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} |
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|
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|
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/* |
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static HRESULT saveToFile(Graph graph, const QString &filepath) |
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{ |
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const WCHAR wszStreamName[] = L"ActiveMovieGraph"; |
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HRESULT hr; |
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ComPointer<IStorage> storage; |
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|
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// First, create a document file that will hold the GRF file |
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hr = StgCreateDocfile((OLECHAR*)filepath.utf16(), |
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STGM_CREATE | STGM_TRANSACTED | STGM_READWRITE | |
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STGM_SHARE_EXCLUSIVE, |
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0, storage.pparam()); |
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|
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if (FAILED(hr)) { |
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return hr; |
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} |
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|
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// Next, create a stream to store. |
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ComPointer<IStream> stream; |
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hr = storage->CreateStream(wszStreamName, |
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STGM_WRITE | STGM_CREATE | STGM_SHARE_EXCLUSIVE, |
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0, 0, stream.pparam()); |
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|
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if (FAILED(hr)) { |
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return hr; |
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} |
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|
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// The IpersistStream::Save method converts a stream into a persistent object. |
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ComPointer<IPersistStream> persist(graph, IID_IPersistStream); |
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hr = persist->Save(stream, TRUE); |
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if (SUCCEEDED(hr)) { |
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hr = storage->Commit(STGC_DEFAULT); |
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} |
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|
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return hr; |
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} |
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*/ |
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|
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MediaGraph::MediaGraph(MediaObject *mo, short index) : |
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m_graph(CLSID_FilterGraph, IID_IGraphBuilder), |
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m_fakeSource(new FakeSource()), |
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m_hasVideo(false), m_hasAudio(false), m_connectionsDirty(false), |
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m_isStopping(false), m_isSeekable(false), m_result(S_OK), |
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m_index(index), m_renderId(0), m_seekId(0), |
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m_currentTime(0), m_totalTime(0), m_mediaObject(mo) |
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{ |
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m_mediaControl = ComPointer<IMediaControl>(m_graph, IID_IMediaControl); |
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Q_ASSERT(m_mediaControl); |
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m_mediaSeeking = ComPointer<IMediaSeeking>(m_graph, IID_IMediaSeeking); |
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Q_ASSERT(m_mediaSeeking); |
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|
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HRESULT hr = m_graph->AddFilter(m_fakeSource, 0); |
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if (m_mediaObject->catchComError(hr)) { |
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return; |
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} |
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} |
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|
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MediaGraph::~MediaGraph() |
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{ |
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} |
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|
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short MediaGraph::index() const |
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{ |
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return m_index; |
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} |
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|
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void MediaGraph::grabNode(BackendNode *node) |
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{ |
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grabFilter(node->filter(m_index)); |
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} |
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|
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void MediaGraph::grabFilter(Filter filter) |
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{ |
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if (filter) { |
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FILTER_INFO info; |
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filter->QueryFilterInfo(&info); |
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if (info.pGraph != m_graph) { |
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if (info.pGraph) { |
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m_mediaObject->catchComError(info.pGraph->RemoveFilter(filter)); |
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} |
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m_mediaObject->catchComError(m_graph->AddFilter(filter, 0)); |
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} |
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if (info.pGraph) { |
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info.pGraph->Release(); |
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} |
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} |
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} |
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|
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void MediaGraph::switchFilters(Filter oldFilter, Filter newFilter) |
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{ |
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OAFilterState state = syncGetRealState(); |
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if (state != State_Stopped) { |
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ensureStopped(); //to do the transaction |
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} |
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|
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|
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OutputPin connected; |
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{ |
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InputPin pin = BackendNode::pins(oldFilter, PINDIR_INPUT).first(); |
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pin->ConnectedTo(connected.pparam()); |
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} |
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|
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m_graph->RemoveFilter(oldFilter); |
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m_graph->AddFilter(newFilter, 0); |
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|
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if (connected) { |
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InputPin pin = BackendNode::pins(newFilter, PINDIR_INPUT).first(); |
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//let's reestablish the connections |
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m_graph->Connect(connected, pin); |
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} |
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|
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switch(state) |
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{ |
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case State_Running: |
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play(); |
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break; |
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case State_Paused: |
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pause(); |
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break; |
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default: |
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break; |
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} |
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|
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} |
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|
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OAFilterState MediaGraph::syncGetRealState() const |
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{ |
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OAFilterState state; |
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m_mediaControl->GetState(INFINITE, &state); |
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return state; |
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} |
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|
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|
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|
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void MediaGraph::ensureSourceDisconnected() |
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{ |
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for (int i = 0; i < m_sinkConnections.count(); ++i) { |
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const Filter currentFilter = m_sinkConnections.at(i)->filter(m_index); |
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const QList<InputPin> inputs = BackendNode::pins(currentFilter, PINDIR_INPUT); |
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const QList<InputPin> outputs = BackendNode::pins(m_fakeSource, PINDIR_OUTPUT); |
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|
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for (int i = 0; i < inputs.count(); ++i) { |
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for (int o = 0; o < outputs.count(); o++) { |
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tryDisconnect(outputs.at(o), inputs.at(i)); |
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} |
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|
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for (int d = 0; d < m_decoderPins.count(); ++d) { |
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tryDisconnect(m_decoderPins.at(d), inputs.at(i)); |
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} |
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} |
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} |
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} |
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|
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void MediaGraph::ensureSourceConnectedTo(bool force) |
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{ |
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if (m_connectionsDirty == false && force == false) { |
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return; |
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} |
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|
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m_connectionsDirty = false; |
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ensureSourceDisconnected(); |
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|
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//reconnect the pins |
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for (int i = 0; i < m_sinkConnections.count(); ++i) { |
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const Filter currentFilter = m_sinkConnections.at(i)->filter(m_index); |
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const QList<InputPin> inputs = BackendNode::pins(currentFilter, PINDIR_INPUT); |
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for(int i = 0; i < inputs.count(); ++i) { |
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//we ensure the filter belongs to the graph |
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grabFilter(currentFilter); |
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|
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for (int d = 0; d < m_decoderPins.count(); ++d) { |
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//a decoder has only one output |
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if (tryConnect(m_decoderPins.at(d), inputs.at(i))) { |
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break; |
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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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QList<Filter> MediaGraph::getAllFilters(Graph graph) |
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{ |
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QList<Filter> ret; |
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ComPointer<IEnumFilters> enumFilters; |
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graph->EnumFilters(enumFilters.pparam()); |
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Filter current; |
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while( enumFilters && enumFilters->Next(1, current.pparam(), 0) == S_OK) { |
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ret += current; |
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} |
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return ret; |
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} |
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|
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QList<Filter> MediaGraph::getAllFilters() const |
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{ |
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return getAllFilters(m_graph); |
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} |
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|
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|
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bool MediaGraph::isSeekable() const |
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{ |
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return m_isSeekable; |
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} |
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|
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qint64 MediaGraph::absoluteTotalTime() const |
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{ |
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if (m_seekId) { |
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return m_totalTime; |
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} else { |
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qint64 ret = 0; |
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if (m_mediaSeeking) { |
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m_mediaSeeking->GetDuration(&ret); |
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ret /= 10000; //convert to milliseconds |
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} |
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return ret; |
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} |
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} |
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|
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qint64 MediaGraph::absoluteCurrentTime() const |
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{ |
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if (m_seekId) { |
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return m_currentTime; |
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} else { |
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qint64 ret = -1; |
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if (m_mediaSeeking) { |
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HRESULT hr = m_mediaSeeking->GetCurrentPosition(&ret); |
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if (FAILED(hr)) { |
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return ret; |
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} |
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ret /= 10000; //convert to milliseconds |
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} |
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return ret; |
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} |
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} |
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|
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Phonon::MediaSource MediaGraph::mediaSource() const |
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{ |
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return m_mediaSource; |
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} |
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|
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void MediaGraph::play() |
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{ |
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ensureSourceConnectedTo(); |
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m_mediaObject->workerThread()->addStateChangeRequest(m_graph, State_Running, m_decoders); |
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} |
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|
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void MediaGraph::pause() |
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{ |
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ensureSourceConnectedTo(); |
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m_mediaObject->workerThread()->addStateChangeRequest(m_graph, State_Paused, m_decoders); |
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} |
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|
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HRESULT MediaGraph::renderResult() const |
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{ |
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return m_result; |
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} |
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|
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bool MediaGraph::isStopping() const |
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{ |
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return m_isStopping; |
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} |
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|
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Graph MediaGraph::graph() const |
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{ |
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return m_graph; |
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} |
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|
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void MediaGraph::stop() |
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{ |
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if (!isLoading()) { |
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ensureStopped(); |
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absoluteSeek(0); //resets the clock |
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} else { |
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m_mediaObject->workerThread()->abortCurrentRender(m_renderId); |
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m_renderId = 0; //cancels current loading |
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} |
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m_mediaObject->workerThread()->addStateChangeRequest(m_graph, State_Stopped); |
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} |
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|
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void MediaGraph::ensureStopped() |
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{ |
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m_isStopping = true; |
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//special case here because we want stopped to be synchronous |
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m_graph->Abort(); |
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m_mediaControl->Stop(); |
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OAFilterState dummy; |
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//this will wait until the change is effective |
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m_mediaControl->GetState(INFINITE, &dummy); |
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m_isStopping = false; |
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} |
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|
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bool MediaGraph::isLoading() const |
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{ |
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return m_renderId != 0; |
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} |
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|
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void MediaGraph::absoluteSeek(qint64 time) |
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{ |
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//this just sends a request |
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if (m_seekId == 0) { |
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m_currentTime = absoluteCurrentTime(); |
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m_totalTime = absoluteTotalTime(); |
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} |
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m_seekId = m_mediaObject->workerThread()->addSeekRequest(m_graph, time); |
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} |
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|
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HRESULT MediaGraph::removeFilter(const Filter& filter) |
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{ |
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FILTER_INFO info; |
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filter->QueryFilterInfo(&info); |
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#ifdef GRAPH_DEBUG |
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qDebug() << "removeFilter" << QString((const QChar *)info.achName); |
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#endif |
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if (info.pGraph) { |
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info.pGraph->Release(); |
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if (info.pGraph == m_graph) |
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return m_graph->RemoveFilter(filter); |
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} |
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|
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//already removed |
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return S_OK; |
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} |
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|
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HRESULT MediaGraph::cleanup() |
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{ |
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stop(); |
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|
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ensureSourceDisconnected(); |
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|
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QList<Filter> list = m_decoders; |
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if (m_demux) { |
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list << m_demux; |
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} |
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if (m_realSource) { |
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list << m_realSource; |
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} |
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list << m_decoders; |
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|
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for (int i = 0; i < m_decoders.count(); ++i) { |
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list += getFilterChain(m_demux, m_decoders.at(i)); |
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} |
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|
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for (int i = 0; i < list.count(); ++i) { |
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removeFilter(list.at(i)); |
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} |
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|
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//Let's reinitialize the internal lists |
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m_decoderPins.clear(); |
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m_decoders.clear(); |
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m_demux = Filter(); |
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m_realSource = Filter(); |
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m_mediaSource = Phonon::MediaSource(); |
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|
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absoluteSeek(0); //resets the clock |
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|
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return S_OK; |
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} |
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|
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|
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bool MediaGraph::disconnectNodes(BackendNode *source, BackendNode *sink) |
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{ |
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const Filter sinkFilter = sink->filter(m_index); |
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const QList<InputPin> inputs = BackendNode::pins(sinkFilter, PINDIR_INPUT); |
| 434 |
|
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QList<OutputPin> outputs; |
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if (source == m_mediaObject) { |
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outputs = BackendNode::pins(m_fakeSource, PINDIR_OUTPUT); |
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outputs += m_decoderPins; |
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} else { |
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outputs = BackendNode::pins(source->filter(m_index), PINDIR_OUTPUT); |
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} |
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|
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|
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for (int i = 0; i < inputs.count(); ++i) { |
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for (int o = 0; o < outputs.count(); ++o) { |
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tryDisconnect(outputs.at(o), inputs.at(i)); |
| 447 |
} |
| 448 |
} |
| 449 |
|
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if (m_sinkConnections.removeOne(sink)) { |
| 451 |
m_connectionsDirty = true; |
| 452 |
} |
| 453 |
return true; |
| 454 |
} |
| 455 |
|
| 456 |
bool MediaGraph::tryDisconnect(const OutputPin &out, const InputPin &in) |
| 457 |
{ |
| 458 |
bool ret = false; |
| 459 |
|
| 460 |
OutputPin output; |
| 461 |
if (SUCCEEDED(in->ConnectedTo(output.pparam()))) { |
| 462 |
|
| 463 |
if (output == out) { |
| 464 |
//we need a simple disconnection |
| 465 |
ret = SUCCEEDED(out->Disconnect()) && SUCCEEDED(in->Disconnect()); |
| 466 |
} else { |
| 467 |
InputPin in2; |
| 468 |
if (SUCCEEDED(out->ConnectedTo(in2.pparam()))) { |
| 469 |
PIN_INFO info; |
| 470 |
in2->QueryPinInfo(&info); |
| 471 |
Filter tee(info.pFilter); |
| 472 |
CLSID clsid; |
| 473 |
tee->GetClassID(&clsid); |
| 474 |
if (clsid == CLSID_InfTee) { |
| 475 |
//we have to remove all intermediate filters between the tee and the sink |
| 476 |
PIN_INFO info; |
| 477 |
in->QueryPinInfo(&info); |
| 478 |
Filter sink(info.pFilter); |
| 479 |
QList<Filter> list = getFilterChain(tee, sink); |
| 480 |
out->QueryPinInfo(&info); |
| 481 |
Filter source(info.pFilter); |
| 482 |
|
| 483 |
if (list.isEmpty()) { |
| 484 |
output->QueryPinInfo(&info); |
| 485 |
if (Filter(info.pFilter) == tee) { |
| 486 |
ret = SUCCEEDED(output->Disconnect()) && SUCCEEDED(in->Disconnect()); |
| 487 |
} |
| 488 |
} else { |
| 489 |
ret = true; |
| 490 |
for (int i = 0; i < list.count(); ++i) { |
| 491 |
ret = ret && SUCCEEDED(removeFilter(list.at(i))); |
| 492 |
} |
| 493 |
} |
| 494 |
|
| 495 |
//Let's try to see if the Tee filter is still useful |
| 496 |
if (ret) { |
| 497 |
int connections = 0; |
| 498 |
const QList<OutputPin> outputs = BackendNode::pins(tee, PINDIR_OUTPUT); |
| 499 |
for(int i = 0; i < outputs.count(); ++i) { |
| 500 |
InputPin p; |
| 501 |
if ( SUCCEEDED(outputs.at(i)->ConnectedTo(p.pparam()))) { |
| 502 |
connections++; |
| 503 |
} |
| 504 |
} |
| 505 |
if (connections == 0) { |
| 506 |
//this avoids a crash if the filter is destroyed |
| 507 |
//by the subsequent call to removeFilter |
| 508 |
output = OutputPin(); |
| 509 |
removeFilter(tee); //there is no more output for the tee, we remove it |
| 510 |
} |
| 511 |
} |
| 512 |
} |
| 513 |
} |
| 514 |
} |
| 515 |
} |
| 516 |
return ret; |
| 517 |
} |
| 518 |
|
| 519 |
bool MediaGraph::tryConnect(const OutputPin &out, const InputPin &newIn) |
| 520 |
{ |
| 521 |
|
| 522 |
|
| 523 |
///The management of the creation of the Tees is done here (this is the only place where we call IPin::Connect |
| 524 |
InputPin inPin; |
| 525 |
if (SUCCEEDED(out->ConnectedTo(inPin.pparam()))) { |
| 526 |
|
| 527 |
//the fake source has another mechanism for the connection |
| 528 |
if (BackendNode::pins(m_fakeSource, PINDIR_OUTPUT).contains(out)) { |
| 529 |
return false; |
| 530 |
} |
| 531 |
|
| 532 |
//the output pin is already connected |
| 533 |
PIN_INFO info; |
| 534 |
inPin->QueryPinInfo(&info); |
| 535 |
Filter filter(info.pFilter); //this will ensure the interface is "Release"d |
| 536 |
CLSID clsid; |
| 537 |
filter->GetClassID(&clsid); |
| 538 |
if (clsid == CLSID_InfTee) { |
| 539 |
//there is already a Tee (namely 'filter') in use |
| 540 |
const QList<OutputPin> outputs = BackendNode::pins(filter, PINDIR_OUTPUT); |
| 541 |
for(int i = 0; i < outputs.count(); ++i) { |
| 542 |
const OutputPin &pin = outputs.at(i); |
| 543 |
if (HRESULT(VFW_E_NOT_CONNECTED) == pin->ConnectedTo(inPin.pparam())) { |
| 544 |
return SUCCEEDED(pin->Connect(newIn, 0)); |
| 545 |
} |
| 546 |
} |
| 547 |
//we shoud never go here |
| 548 |
return false; |
| 549 |
} else { |
| 550 |
QAMMediaType type; |
| 551 |
out->ConnectionMediaType(&type); |
| 552 |
|
| 553 |
//first we disconnect the current connection (and we save the current media type) |
| 554 |
if (!tryDisconnect(out, inPin)) { |
| 555 |
return false; |
| 556 |
} |
| 557 |
|
| 558 |
//..then we try to connect the new node |
| 559 |
if (SUCCEEDED(out->Connect(newIn, 0))) { |
| 560 |
|
| 561 |
//we have to insert the Tee |
| 562 |
if (!tryDisconnect(out, newIn)) { |
| 563 |
return false; |
| 564 |
} |
| 565 |
|
| 566 |
Filter filter(CLSID_InfTee, IID_IBaseFilter); |
| 567 |
if (!filter) { |
| 568 |
//rollback |
| 569 |
m_graph->Connect(out, inPin); |
| 570 |
return false; |
| 571 |
} |
| 572 |
|
| 573 |
if (FAILED(m_graph->AddFilter(filter, 0))) { |
| 574 |
return false; |
| 575 |
} |
| 576 |
|
| 577 |
|
| 578 |
InputPin teeIn = BackendNode::pins(filter, PINDIR_INPUT).first(); //a Tee has always one input |
| 579 |
HRESULT hr = out->Connect(teeIn, &type); |
| 580 |
if (FAILED(hr)) { |
| 581 |
hr = m_graph->Connect(out, teeIn); |
| 582 |
} |
| 583 |
if (FAILED(hr)) { |
| 584 |
m_graph->Connect(out, inPin); |
| 585 |
return false; |
| 586 |
} |
| 587 |
|
| 588 |
OutputPin teeOut = BackendNode::pins(filter, PINDIR_OUTPUT).last(); //the last is always the one that's not connected |
| 589 |
|
| 590 |
//we simply reconnect the pins as they |
| 591 |
hr = m_graph->Connect(teeOut, inPin); |
| 592 |
if (FAILED(hr)) { |
| 593 |
m_graph->Connect(out, inPin); |
| 594 |
return false; |
| 595 |
} |
| 596 |
|
| 597 |
teeOut = BackendNode::pins(filter, PINDIR_OUTPUT).last(); //the last is always the one that's not connected |
| 598 |
if (FAILED(m_graph->Connect(teeOut, newIn))) { |
| 599 |
m_graph->Connect(out, inPin); |
| 600 |
return false; |
| 601 |
} |
| 602 |
|
| 603 |
return true; |
| 604 |
} else { |
| 605 |
//we simply reconnect the pins as they |
| 606 |
m_graph->Connect(out, inPin); |
| 607 |
return false; |
| 608 |
} |
| 609 |
} |
| 610 |
|
| 611 |
} else { |
| 612 |
return SUCCEEDED(m_graph->Connect(out, newIn)); |
| 613 |
} |
| 614 |
} |
| 615 |
|
| 616 |
bool MediaGraph::connectNodes(BackendNode *source, BackendNode *sink) |
| 617 |
{ |
| 618 |
bool ret = false; |
| 619 |
const QList<InputPin> inputs = BackendNode::pins(sink->filter(m_index), PINDIR_INPUT); |
| 620 |
QList<OutputPin> outputs = BackendNode::pins(source == m_mediaObject ? m_fakeSource : source->filter(m_index), PINDIR_OUTPUT); |
| 621 |
|
| 622 |
if (source == m_mediaObject) { |
| 623 |
grabFilter(m_fakeSource); |
| 624 |
} |
| 625 |
|
| 626 |
#ifdef GRAPH_DEBUG |
| 627 |
qDebug() << Q_FUNC_INFO << source << sink << this; |
| 628 |
#endif |
| 629 |
|
| 630 |
for (int o = 0; o < outputs.count(); o++) { |
| 631 |
InputPin p; |
| 632 |
for (int i = 0; i < inputs.count(); i++) { |
| 633 |
const InputPin &inPin = inputs.at(i); |
| 634 |
if (tryConnect(outputs.at(o), inPin)) { |
| 635 |
//tell the sink node that it just got a new input |
| 636 |
sink->connected(source, inPin); |
| 637 |
ret = true; |
| 638 |
if (source == m_mediaObject) { |
| 639 |
m_connectionsDirty = true; |
| 640 |
m_sinkConnections += sink; |
| 641 |
#ifdef GRAPH_DEBUG |
| 642 |
qDebug() << "found a sink connection" << sink << m_sinkConnections.count(); |
| 643 |
#endif |
| 644 |
} |
| 645 |
break; |
| 646 |
} |
| 647 |
} |
| 648 |
} |
| 649 |
|
| 650 |
return ret; |
| 651 |
} |
| 652 |
|
| 653 |
|
| 654 |
HRESULT MediaGraph::loadSource(const Phonon::MediaSource &source) |
| 655 |
{ |
| 656 |
m_hasVideo = false; |
| 657 |
m_hasAudio = false; |
| 658 |
m_isSeekable = false; |
| 659 |
|
| 660 |
|
| 661 |
//cleanup of the previous filters |
| 662 |
m_result = cleanup(); |
| 663 |
if (FAILED(m_result)) { |
| 664 |
return m_result; |
| 665 |
} |
| 666 |
|
| 667 |
m_mediaSource = source; |
| 668 |
|
| 669 |
switch (source.type()) |
| 670 |
{ |
| 671 |
case Phonon::MediaSource::Disc: |
| 672 |
if (source.discType() == Phonon::Dvd) { |
| 673 |
m_result = E_NOTIMPL; |
| 674 |
/*m_realSource = Filter(CLSID_DVDNavigator, IID_IBaseFilter); |
| 675 |
if (m_realSource) { |
| 676 |
return REGDB_E_CLASSNOTREG; |
| 677 |
} |
| 678 |
|
| 679 |
m_result = m_graph->AddFilter(m_realSource, L"DVD Navigator");*/ |
| 680 |
|
| 681 |
|
| 682 |
#ifndef QT_NO_PHONON_MEDIACONTROLLER |
| 683 |
} else if (source.discType() == Phonon::Cd) { |
| 684 |
m_realSource = Filter(new QAudioCDPlayer); |
| 685 |
|
| 686 |
#endif //QT_NO_PHONON_MEDIACONTROLLER |
| 687 |
} else { |
| 688 |
m_result = E_NOTIMPL; |
| 689 |
} |
| 690 |
if (FAILED(m_result)) { |
| 691 |
return m_result; |
| 692 |
} |
| 693 |
m_renderId = m_mediaObject->workerThread()->addFilterToRender(m_realSource); |
| 694 |
return m_result; |
| 695 |
case Phonon::MediaSource::Invalid: |
| 696 |
return m_result; |
| 697 |
case Phonon::MediaSource::Url: |
| 698 |
case Phonon::MediaSource::LocalFile: |
| 699 |
{ |
| 700 |
QString url; |
| 701 |
if (source.type() == Phonon::MediaSource::LocalFile) { |
| 702 |
url = source.fileName(); |
| 703 |
} else { |
| 704 |
url = source.url().toString(); |
| 705 |
} |
| 706 |
m_renderId = m_mediaObject->workerThread()->addUrlToRender(url); |
| 707 |
} |
| 708 |
break; |
| 709 |
#ifndef QT_NO_PHONON_ABSTRACTMEDIASTREAM |
| 710 |
case Phonon::MediaSource::Stream: |
| 711 |
{ |
| 712 |
m_realSource = Filter(new IODeviceReader(source, this)); |
| 713 |
m_renderId = m_mediaObject->workerThread()->addFilterToRender(m_realSource); |
| 714 |
} |
| 715 |
break; |
| 716 |
#endif //QT_NO_PHONON_ABSTRACTMEDIASTREAM |
| 717 |
default: |
| 718 |
m_result = E_FAIL; |
| 719 |
} |
| 720 |
|
| 721 |
return m_result; |
| 722 |
} |
| 723 |
|
| 724 |
void MediaGraph::finishSeeking(quint16 workId, qint64 time) |
| 725 |
{ |
| 726 |
if (m_seekId == workId) { |
| 727 |
m_currentTime = time; |
| 728 |
m_mediaObject->seekingFinished(this); |
| 729 |
m_seekId = 0; |
| 730 |
} else { |
| 731 |
//it's a queue seek command |
| 732 |
//we're still seeking |
| 733 |
} |
| 734 |
} |
| 735 |
|
| 736 |
void MediaGraph::finishLoading(quint16 workId, HRESULT hr, Graph graph) |
| 737 |
{ |
| 738 |
if (m_renderId == workId) { |
| 739 |
m_renderId = 0; |
| 740 |
|
| 741 |
//let's determine if the graph is seekable |
| 742 |
{ |
| 743 |
ComPointer<IMediaSeeking> mediaSeeking(graph, IID_IMediaSeeking); |
| 744 |
DWORD caps = AM_SEEKING_CanSeekAbsolute; |
| 745 |
m_isSeekable = mediaSeeking && SUCCEEDED(mediaSeeking->CheckCapabilities(&caps)); |
| 746 |
} |
| 747 |
|
| 748 |
m_result = reallyFinishLoading(hr, graph); |
| 749 |
m_mediaObject->loadingFinished(this); |
| 750 |
} |
| 751 |
} |
| 752 |
|
| 753 |
|
| 754 |
HRESULT MediaGraph::reallyFinishLoading(HRESULT hr, const Graph &graph) |
| 755 |
{ |
| 756 |
if (FAILED(hr)) { |
| 757 |
return hr; |
| 758 |
} |
| 759 |
|
| 760 |
const Graph oldGraph = m_graph; |
| 761 |
m_graph = graph; |
| 762 |
|
| 763 |
//we keep the source and all the way down to the decoders |
| 764 |
QList<Filter> removedFilters; |
| 765 |
|
| 766 |
const QList<Filter> allFilters = getAllFilters(graph); |
| 767 |
for (int i = 0; i < allFilters.count(); ++i) { |
| 768 |
const Filter &filter = allFilters.at(i); |
| 769 |
if (isSourceFilter(filter)) { |
| 770 |
m_realSource = filter; //save the source filter |
| 771 |
if (!m_demux ) { |
| 772 |
m_demux = filter; //in the WMV case, the demuxer is the source filter itself |
| 773 |
} |
| 774 |
} else if (isDemuxerFilter(filter)) { |
| 775 |
m_demux = filter; |
| 776 |
} else if (isDecoderFilter(filter)) { |
| 777 |
m_decoders += filter; |
| 778 |
m_decoderPins += BackendNode::pins(filter, PINDIR_OUTPUT).first(); |
| 779 |
} else { |
| 780 |
removedFilters += filter; |
| 781 |
} |
| 782 |
} |
| 783 |
|
| 784 |
const QList<OutputPin> demuxOutputs = BackendNode::pins(m_demux, PINDIR_OUTPUT); |
| 785 |
for (int i = 0; i < demuxOutputs.count(); ++i) { |
| 786 |
//...and the output must be decoded |
| 787 |
QAMMediaType type; |
| 788 |
hr = demuxOutputs.at(i)->ConnectionMediaType(&type); |
| 789 |
if (FAILED(hr)) { |
| 790 |
continue; |
| 791 |
} |
| 792 |
|
| 793 |
if (type.majortype == MEDIATYPE_Video) { |
| 794 |
m_hasVideo = true; |
| 795 |
} else if (type.majortype == MEDIATYPE_Audio) { |
| 796 |
m_hasAudio = true; |
| 797 |
} |
| 798 |
} |
| 799 |
|
| 800 |
|
| 801 |
for (int i = 0; i < m_decoders.count(); ++i) { |
| 802 |
QList<Filter> chain = getFilterChain(m_demux, m_decoders.at(i)); |
| 803 |
for (int i = 0; i < chain.count(); ++i) { |
| 804 |
//we keep those filters |
| 805 |
removedFilters.removeOne(chain.at(i)); |
| 806 |
} |
| 807 |
} |
| 808 |
|
| 809 |
for (int i = 0; i < removedFilters.count(); ++i) { |
| 810 |
graph->RemoveFilter(removedFilters.at(i)); |
| 811 |
} |
| 812 |
|
| 813 |
m_mediaObject->workerThread()->replaceGraphForEventManagement(graph, oldGraph); |
| 814 |
|
| 815 |
//let's transfer the nodes from the current graph to the new one |
| 816 |
QList<GraphConnection> connections; //we store the connections that need to be restored |
| 817 |
|
| 818 |
// First get all the sink nodes (nodes with no input connected) |
| 819 |
for (int i = 0; i < m_sinkConnections.count(); ++i) { |
| 820 |
Filter currentFilter = m_sinkConnections.at(i)->filter(m_index); |
| 821 |
connections += getConnections(currentFilter); |
| 822 |
grabFilter(currentFilter); |
| 823 |
} |
| 824 |
|
| 825 |
//we need to do something smart to detect if the streams are unencoded |
| 826 |
for (int i = 0; i < demuxOutputs.count(); ++i) { |
| 827 |
const OutputPin &out = demuxOutputs.at(i); |
| 828 |
InputPin pin; |
| 829 |
if (out->ConnectedTo(pin.pparam()) == HRESULT(VFW_E_NOT_CONNECTED)) { |
| 830 |
m_decoderPins += out; //unconnected outputs can be decoded outputs |
| 831 |
} |
| 832 |
} |
| 833 |
|
| 834 |
ensureSourceConnectedTo(true); |
| 835 |
|
| 836 |
//let's reestablish the connections |
| 837 |
for (int i = 0; i < connections.count(); ++i) { |
| 838 |
const GraphConnection &connection = connections.at(i); |
| 839 |
//check if we shoud transfer the sink node |
| 840 |
|
| 841 |
grabFilter(connection.input); |
| 842 |
grabFilter(connection.output); |
| 843 |
|
| 844 |
const OutputPin output = BackendNode::pins(connection.output, PINDIR_OUTPUT).at(connection.outputOffset); |
| 845 |
const InputPin input = BackendNode::pins(connection.input, PINDIR_INPUT).at(connection.inputOffset); |
| 846 |
HRESULT hr = output->Connect(input, 0); |
| 847 |
Q_UNUSED(hr); |
| 848 |
Q_ASSERT( SUCCEEDED(hr)); |
| 849 |
} |
| 850 |
|
| 851 |
//Finally, let's update the interfaces |
| 852 |
m_mediaControl = ComPointer<IMediaControl>(graph, IID_IMediaControl); |
| 853 |
m_mediaSeeking = ComPointer<IMediaSeeking>(graph, IID_IMediaSeeking); |
| 854 |
return hr; |
| 855 |
} |
| 856 |
|
| 857 |
//utility functions |
| 858 |
//retrieves the filters between source and sink |
| 859 |
QList<Filter> MediaGraph::getFilterChain(const Filter &source, const Filter &sink) |
| 860 |
{ |
| 861 |
QList<Filter> ret; |
| 862 |
Filter current = sink; |
| 863 |
while (current && BackendNode::pins(current, PINDIR_INPUT).count() == 1 && current != source) { |
| 864 |
if (current != source) |
| 865 |
ret += current; |
| 866 |
InputPin pin = BackendNode::pins(current, PINDIR_INPUT).first(); |
| 867 |
current = Filter(); |
| 868 |
OutputPin output; |
| 869 |
if (pin->ConnectedTo(output.pparam()) == S_OK) { |
| 870 |
PIN_INFO info; |
| 871 |
if (SUCCEEDED(output->QueryPinInfo(&info)) && info.pFilter) { |
| 872 |
current = Filter(info.pFilter); //this will take care of releasing the interface pFilter |
| 873 |
} |
| 874 |
} |
| 875 |
} |
| 876 |
if (current != source) { |
| 877 |
//the soruce and sink don't seem to be connected |
| 878 |
ret.clear(); |
| 879 |
} |
| 880 |
return ret; |
| 881 |
} |
| 882 |
|
| 883 |
bool MediaGraph::isDecoderFilter(const Filter &filter) |
| 884 |
{ |
| 885 |
if (filter == 0) { |
| 886 |
return false; |
| 887 |
} |
| 888 |
#ifdef GRAPH_DEBUG |
| 889 |
{ |
| 890 |
FILTER_INFO info; |
| 891 |
filter->QueryFilterInfo(&info); |
| 892 |
qDebug() << Q_FUNC_INFO << QString((const QChar *)info.achName); |
| 893 |
if (info.pGraph) { |
| 894 |
info.pGraph->Release(); |
| 895 |
} |
| 896 |
} |
| 897 |
#endif |
| 898 |
|
| 899 |
|
| 900 |
QList<InputPin> inputs = BackendNode::pins(filter, PINDIR_INPUT); |
| 901 |
QList<OutputPin> outputs = BackendNode::pins(filter, PINDIR_OUTPUT); |
| 902 |
|
| 903 |
//TODO: find a better way to detect if a node is a decoder |
| 904 |
if (inputs.count() == 0 || outputs.count() ==0) { |
| 905 |
return false; |
| 906 |
} |
| 907 |
|
| 908 |
//the input pin must be encoded data |
| 909 |
QAMMediaType type; |
| 910 |
HRESULT hr = inputs.first()->ConnectionMediaType(&type); |
| 911 |
if (FAILED(hr)) { |
| 912 |
return false; |
| 913 |
} |
| 914 |
|
| 915 |
|
| 916 |
//...and the output must be decoded |
| 917 |
QAMMediaType type2; |
| 918 |
hr = outputs.first()->ConnectionMediaType(&type2); |
| 919 |
if (FAILED(hr)) { |
| 920 |
return false; |
| 921 |
} |
| 922 |
|
| 923 |
if (type2.majortype != MEDIATYPE_Video && |
| 924 |
type2.majortype != MEDIATYPE_Audio) { |
| 925 |
return false; |
| 926 |
} |
| 927 |
|
| 928 |
if (type2.majortype == MEDIATYPE_Video) { |
| 929 |
m_hasVideo = true; |
| 930 |
} else { |
| 931 |
m_hasAudio = true; |
| 932 |
} |
| 933 |
|
| 934 |
#ifdef GRAPH_DEBUG |
| 935 |
{ |
| 936 |
FILTER_INFO info; |
| 937 |
filter->QueryFilterInfo(&info); |
| 938 |
qDebug() << "found a decoder filter" << QString((const QChar *)info.achName); |
| 939 |
if (info.pGraph) { |
| 940 |
info.pGraph->Release(); |
| 941 |
} |
| 942 |
} |
| 943 |
#endif |
| 944 |
|
| 945 |
return true; |
| 946 |
} |
| 947 |
|
| 948 |
bool MediaGraph::isSourceFilter(const Filter &filter) const |
| 949 |
{ |
| 950 |
#ifdef GRAPH_DEBUG |
| 951 |
{ |
| 952 |
FILTER_INFO info; |
| 953 |
filter->QueryFilterInfo(&info); |
| 954 |
qDebug() << Q_FUNC_INFO << QString((const QChar *)info.achName); |
| 955 |
if (info.pGraph) { |
| 956 |
info.pGraph->Release(); |
| 957 |
} |
| 958 |
} |
| 959 |
#endif |
| 960 |
//a source filter is one that has no input |
| 961 |
return BackendNode::pins(filter, PINDIR_INPUT).isEmpty(); |
| 962 |
} |
| 963 |
|
| 964 |
bool MediaGraph::isDemuxerFilter(const Filter &filter) const |
| 965 |
{ |
| 966 |
QList<InputPin> inputs = BackendNode::pins(filter, PINDIR_INPUT); |
| 967 |
QList<OutputPin> outputs = BackendNode::pins(filter, PINDIR_OUTPUT); |
| 968 |
|
| 969 |
#ifdef GRAPH_DEBUG |
| 970 |
{ |
| 971 |
FILTER_INFO info; |
| 972 |
filter->QueryFilterInfo(&info); |
| 973 |
qDebug() << Q_FUNC_INFO << QString((const QChar *)info.achName); |
| 974 |
if (info.pGraph) { |
| 975 |
info.pGraph->Release(); |
| 976 |
} |
| 977 |
} |
| 978 |
#endif |
| 979 |
|
| 980 |
if (inputs.count() != 1 || outputs.count() == 0) { |
| 981 |
return false; //a demuxer has only one input |
| 982 |
} |
| 983 |
|
| 984 |
QAMMediaType type; |
| 985 |
HRESULT hr = inputs.first()->ConnectionMediaType(&type); |
| 986 |
if (FAILED(hr)) { |
| 987 |
return false; |
| 988 |
} |
| 989 |
|
| 990 |
if (type.majortype != MEDIATYPE_Stream) { |
| 991 |
return false; |
| 992 |
} |
| 993 |
|
| 994 |
for (int i = 0; i < outputs.count(); ++i) { |
| 995 |
QAMMediaType type; |
| 996 |
//for now we support only video and audio |
| 997 |
hr = outputs.at(i)->ConnectionMediaType(&type); |
| 998 |
if (SUCCEEDED(hr) && |
| 999 |
type.majortype != MEDIATYPE_Video && type.majortype != MEDIATYPE_Audio) { |
| 1000 |
return false; |
| 1001 |
} |
| 1002 |
} |
| 1003 |
#ifdef GRAPH_DEBUG |
| 1004 |
{ |
| 1005 |
FILTER_INFO info; |
| 1006 |
filter->QueryFilterInfo(&info); |
| 1007 |
qDebug() << "found a demuxer filter" << QString((const QChar *)info.achName); |
| 1008 |
if (info.pGraph) { |
| 1009 |
info.pGraph->Release(); |
| 1010 |
} |
| 1011 |
} |
| 1012 |
#endif |
| 1013 |
return true; |
| 1014 |
} |
| 1015 |
|
| 1016 |
QMultiMap<QString, QString> MediaGraph::metadata() const |
| 1017 |
{ |
| 1018 |
QMultiMap<QString, QString> ret; |
| 1019 |
ComPointer<IAMMediaContent> mediaContent(m_demux, IID_IAMMediaContent); |
| 1020 |
if (mediaContent) { |
| 1021 |
//let's get the meta data |
| 1022 |
BSTR str; |
| 1023 |
HRESULT hr = mediaContent->get_AuthorName(&str); |
| 1024 |
if (SUCCEEDED(hr)) { |
| 1025 |
ret.insert(QLatin1String("ARTIST"), QString::fromWCharArray(str)); |
| 1026 |
SysFreeString(str); |
| 1027 |
} |
| 1028 |
hr = mediaContent->get_Title(&str); |
| 1029 |
if (SUCCEEDED(hr)) { |
| 1030 |
ret.insert(QLatin1String("TITLE"), QString::fromWCharArray(str)); |
| 1031 |
SysFreeString(str); |
| 1032 |
} |
| 1033 |
hr = mediaContent->get_Description(&str); |
| 1034 |
if (SUCCEEDED(hr)) { |
| 1035 |
ret.insert(QLatin1String("DESCRIPTION"), QString::fromWCharArray(str)); |
| 1036 |
SysFreeString(str); |
| 1037 |
} |
| 1038 |
hr = mediaContent->get_Copyright(&str); |
| 1039 |
if (SUCCEEDED(hr)) { |
| 1040 |
ret.insert(QLatin1String("COPYRIGHT"), QString::fromWCharArray(str)); |
| 1041 |
SysFreeString(str); |
| 1042 |
} |
| 1043 |
hr = mediaContent->get_MoreInfoText(&str); |
| 1044 |
if (SUCCEEDED(hr)) { |
| 1045 |
ret.insert(QLatin1String("MOREINFO"), QString::fromWCharArray(str)); |
| 1046 |
SysFreeString(str); |
| 1047 |
} |
| 1048 |
} |
| 1049 |
return ret; |
| 1050 |
} |
| 1051 |
|
| 1052 |
Filter MediaGraph::realSource() const |
| 1053 |
{ |
| 1054 |
return m_realSource; |
| 1055 |
} |
| 1056 |
|
| 1057 |
#ifndef QT_NO_PHONON_MEDIACONTROLLER |
| 1058 |
void MediaGraph::setStopPosition(qint64 time) |
| 1059 |
{ |
| 1060 |
qint64 current = 0, |
| 1061 |
stop = 0; |
| 1062 |
m_mediaSeeking->GetPositions(¤t, &stop); |
| 1063 |
|
| 1064 |
const bool shouldSeek = current == stop; |
| 1065 |
|
| 1066 |
if (time == -1) { |
| 1067 |
HRESULT hr = m_mediaSeeking->GetDuration(&time); |
| 1068 |
if (FAILED(hr)) { |
| 1069 |
return; |
| 1070 |
} |
| 1071 |
} else { |
| 1072 |
time *= 10000; |
| 1073 |
} |
| 1074 |
|
| 1075 |
if (time == stop) { |
| 1076 |
//the stop position is already at the right place |
| 1077 |
return; |
| 1078 |
} |
| 1079 |
|
| 1080 |
if (shouldSeek) { |
| 1081 |
m_mediaSeeking->SetPositions(¤t, AM_SEEKING_AbsolutePositioning, |
| 1082 |
&time, AM_SEEKING_AbsolutePositioning); |
| 1083 |
} else { |
| 1084 |
m_mediaSeeking->SetPositions(0, AM_SEEKING_NoPositioning, |
| 1085 |
&time, AM_SEEKING_AbsolutePositioning); |
| 1086 |
} |
| 1087 |
} |
| 1088 |
|
| 1089 |
qint64 MediaGraph::stopPosition() const |
| 1090 |
{ |
| 1091 |
qint64 ret; |
| 1092 |
m_mediaSeeking->GetStopPosition(&ret); |
| 1093 |
return ret / 10000; |
| 1094 |
|
| 1095 |
} |
| 1096 |
|
| 1097 |
QList<qint64> MediaGraph::titles() const |
| 1098 |
{ |
| 1099 |
//for now we only manage that for the audio cd |
| 1100 |
ComPointer<ITitleInterface> titleIFace(m_realSource, IID_ITitleInterface); |
| 1101 |
if (titleIFace) { |
| 1102 |
return titleIFace->titles(); |
| 1103 |
} else { |
| 1104 |
// the default value: only one title that starts at position 0 |
| 1105 |
return QList<qint64>() << 0; |
| 1106 |
} |
| 1107 |
} |
| 1108 |
#endif //QT_NO_PHONON_MEDIACONTROLLER |
| 1109 |
|
| 1110 |
|
| 1111 |
|
| 1112 |
} |
| 1113 |
} |
| 1114 |
|
| 1115 |
QT_END_NAMESPACE |
