Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1:
2c82d5611655e5967f5c5095af50c0991c4378b2

src/plugins/directshow/player/directshowiosource.cpp

@@ -0,0 +1,639 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "directshowiosource.h"
+
+#include "directshowglobal.h"
+#include "directshowmediatype.h"
+#include "directshowpinenum.h"
+
+#include <QtCore/qcoreapplication.h>
+#include <QtCore/qurl.h>
+
+static const GUID directshow_subtypes[] =
+{
+    MEDIASUBTYPE_Avi,
+    MEDIASUBTYPE_WAVE,
+    MEDIASUBTYPE_NULL
+};
+
+DirectShowIOSource::DirectShowIOSource(DirectShowEventLoop *loop)
+    : m_ref(1)
+    , m_state(State_Stopped)
+    , m_reader(0)
+    , m_loop(loop)
+    , m_graph(0)
+    , m_clock(0)
+    , m_allocator(0)
+    , m_peerPin(0)
+    , m_pinId(QLatin1String("Data"))
+{
+    QVector<AM_MEDIA_TYPE> mediaTypes;
+
+    AM_MEDIA_TYPE type =
+    {
+        MEDIATYPE_Stream,  // majortype
+        MEDIASUBTYPE_NULL, // subtype
+        TRUE,              // bFixedSizeSamples
+        FALSE,             // bTemporalCompression
+        1,                 // lSampleSize
+        GUID_NULL,         // formattype
+        0,                 // pUnk
+        0,                 // cbFormat
+        0,                 // pbFormat
+    };
+
+    static const int count = sizeof(directshow_subtypes) / sizeof(GUID);
+
+    for (int i = 0; i < count; ++i) {
+        type.subtype = directshow_subtypes[i];
+        mediaTypes.append(type);
+    }
+
+    setMediaTypes(mediaTypes);
+}
+
+DirectShowIOSource::~DirectShowIOSource()
+{
+    Q_ASSERT(m_ref == 0);
+
+    delete m_reader;
+}
+
+void DirectShowIOSource::setDevice(QIODevice *device)
+{
+    Q_ASSERT(!m_reader);
+
+    m_reader = new DirectShowIOReader(device, this, m_loop);
+}
+
+void DirectShowIOSource::setAllocator(IMemAllocator *allocator)
+{
+    if (m_allocator)
+        m_allocator->Release();
+
+    m_allocator = allocator;
+
+    if (m_allocator)
+        m_allocator->AddRef();
+}
+
+// IUnknown
+HRESULT DirectShowIOSource::QueryInterface(REFIID riid, void **ppvObject)
+{
+    // 2dd74950-a890-11d1-abe8-00a0c905f375
+    static const GUID iid_IAmFilterMiscFlags = {
+        0x2dd74950, 0xa890, 0x11d1, {0xab, 0xe8, 0x00, 0xa0, 0xc9, 0x05, 0xf3, 0x75}};
+
+    if (!ppvObject) {
+        return E_POINTER;
+    } else if (riid == IID_IUnknown
+            || riid == IID_IPersist
+            || riid == IID_IMediaFilter
+            || riid == IID_IBaseFilter) {
+        *ppvObject = static_cast<IBaseFilter *>(this);
+    } else if (riid == iid_IAmFilterMiscFlags) {
+        *ppvObject = static_cast<IAMFilterMiscFlags *>(this);
+    } else if (riid == IID_IPin) {
+        *ppvObject = static_cast<IPin *>(this);
+    } else if (riid == IID_IAsyncReader) {
+        *ppvObject = static_cast<IAsyncReader *>(m_reader);
+    } else {
+        *ppvObject = 0;
+
+        return E_NOINTERFACE;
+    }
+
+    AddRef();
+
+    return S_OK;
+}
+
+ULONG DirectShowIOSource::AddRef()
+{
+    return InterlockedIncrement(&m_ref);
+}
+
+ULONG DirectShowIOSource::Release()
+{
+    ULONG ref = InterlockedDecrement(&m_ref);
+
+    if (ref == 0) {
+        delete this;
+    }
+
+    return ref;
+}
+
+// IPersist
+HRESULT DirectShowIOSource::GetClassID(CLSID *pClassID)
+{
+    *pClassID = CLSID_NULL;
+
+    return S_OK;
+}
+
+// IMediaFilter
+HRESULT DirectShowIOSource::Run(REFERENCE_TIME tStart)
+{
+    QMutexLocker locker(&m_mutex);
+
+    m_state = State_Running;
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::Pause()
+{
+    QMutexLocker locker(&m_mutex);
+
+    m_state = State_Paused;
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::Stop()
+{
+    QMutexLocker locker(&m_mutex);
+
+    m_state = State_Stopped;
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::GetState(DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
+{
+    Q_UNUSED(dwMilliSecsTimeout);
+
+    if (!pState) {
+        return E_POINTER;
+    } else {
+        QMutexLocker locker(&m_mutex);
+
+        *pState = m_state;
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::SetSyncSource(IReferenceClock *pClock)
+{
+    QMutexLocker locker(&m_mutex);
+
+    if (m_clock)
+        m_clock->Release();
+
+    m_clock = pClock;
+
+    if (m_clock)
+        m_clock->AddRef();
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::GetSyncSource(IReferenceClock **ppClock)
+{
+    if (!ppClock) {
+        return E_POINTER;
+    } else {
+        if (!m_clock) {
+            *ppClock = 0;
+
+            return S_FALSE;
+        } else {
+            m_clock->AddRef();
+
+            *ppClock = m_clock;
+
+            return S_OK;
+        }
+    }
+}
+
+// IBaseFilter
+HRESULT DirectShowIOSource::EnumPins(IEnumPins **ppEnum)
+{
+    if (!ppEnum) {
+        return E_POINTER;
+    } else {
+        *ppEnum = new DirectShowPinEnum(QList<IPin *>() << this);
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::FindPin(LPCWSTR Id, IPin **ppPin)
+{
+    if (!ppPin || !Id) {
+        return E_POINTER;
+    } else {
+        QMutexLocker locker(&m_mutex);
+        if (QString::fromWCharArray(Id) == m_pinId) {
+            AddRef();
+
+            *ppPin = this;
+
+            return S_OK;
+        } else {
+            *ppPin = 0;
+
+            return VFW_E_NOT_FOUND;
+        }
+    }
+}
+
+HRESULT DirectShowIOSource::JoinFilterGraph(IFilterGraph *pGraph, LPCWSTR pName)
+{
+    QMutexLocker locker(&m_mutex);
+
+    m_graph = pGraph;
+    m_filterName = QString::fromWCharArray(pName);
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::QueryFilterInfo(FILTER_INFO *pInfo)
+{
+    if (!pInfo) {
+        return E_POINTER;
+    } else {
+        QString name = m_filterName;
+
+        if (name.length() >= MAX_FILTER_NAME)
+            name.truncate(MAX_FILTER_NAME - 1);
+
+        int length = name.toWCharArray(pInfo->achName);
+        pInfo->achName[length] = '\0';
+
+        if (m_graph)
+            m_graph->AddRef();
+
+        pInfo->pGraph = m_graph;
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::QueryVendorInfo(LPWSTR *pVendorInfo)
+{
+    Q_UNUSED(pVendorInfo);
+
+    return E_NOTIMPL;
+}
+
+// IAMFilterMiscFlags
+ULONG DirectShowIOSource::GetMiscFlags()
+{
+    return AM_FILTER_MISC_FLAGS_IS_SOURCE;
+}
+
+// IPin
+HRESULT DirectShowIOSource::Connect(IPin *pReceivePin, const AM_MEDIA_TYPE *pmt)
+{
+    QMutexLocker locker(&m_mutex);
+    if (!pReceivePin) {
+        return E_POINTER;
+    } else if (m_state != State_Stopped) {
+        return VFW_E_NOT_STOPPED;
+    } else if (m_peerPin) {
+        return VFW_E_ALREADY_CONNECTED;
+    } else { 
+        HRESULT hr = VFW_E_TYPE_NOT_ACCEPTED;
+
+        m_peerPin = pReceivePin;
+        m_peerPin->AddRef();
+
+        if (!pmt) {
+            IEnumMediaTypes *mediaTypes = 0;
+            if (pReceivePin->EnumMediaTypes(&mediaTypes) == S_OK) {
+                for (AM_MEDIA_TYPE *type = 0;
+                        mediaTypes->Next(1, &type, 0) == S_OK;
+                        DirectShowMediaType::deleteType(type)) {
+                    switch (tryConnect(pReceivePin, type)) {
+                        case S_OK:
+                            DirectShowMediaType::freeData(type);
+                            mediaTypes->Release();
+                            return S_OK;
+                        case VFW_E_NO_TRANSPORT:
+                            hr = VFW_E_NO_TRANSPORT;
+                            break;
+                        default:
+                            break;
+                    }
+                }
+                mediaTypes->Release();
+            }
+            AM_MEDIA_TYPE type =
+            {
+                MEDIATYPE_Stream,  // majortype
+                MEDIASUBTYPE_NULL, // subtype
+                TRUE,              // bFixedSizeSamples
+                FALSE,             // bTemporalCompression
+                1,                 // lSampleSize
+                GUID_NULL,         // formattype
+                0,                 // pUnk
+                0,                 // cbFormat
+                0,                 // pbFormat
+            };
+
+            static const int count = sizeof(directshow_subtypes) / sizeof(GUID);
+
+            for (int i = 0; i < count; ++i) {
+                type.subtype = directshow_subtypes[i];
+
+                switch (tryConnect(pReceivePin, &type)) {
+                case S_OK:
+                    return S_OK;
+                case VFW_E_NO_TRANSPORT:
+                    hr = VFW_E_NO_TRANSPORT;
+                    break;
+                default:
+                    break;
+                }
+            }
+        } else if (pmt->majortype == MEDIATYPE_Stream &&  (hr = tryConnect(pReceivePin, pmt))) {
+            return S_OK;
+        }
+
+        m_peerPin->Release();
+        m_peerPin = 0;
+
+        m_mediaType.clear();
+
+        return hr;
+    }
+}
+
+HRESULT DirectShowIOSource::tryConnect(IPin *pin, const AM_MEDIA_TYPE *type)
+{
+    m_mediaType = *type;
+
+    HRESULT hr = pin->ReceiveConnection(this, type);
+
+    if (!SUCCEEDED(hr)) {
+        if (m_allocator) {
+            m_allocator->Release();
+            m_allocator = 0;
+        }
+    } else if (!m_allocator) {
+        hr = VFW_E_NO_TRANSPORT;
+
+        if (IMemInputPin *memPin = com_cast<IMemInputPin>(pin, IID_IMemInputPin)) {
+            if ((m_allocator = com_new<IMemAllocator>(CLSID_MemoryAllocator, IID_IMemAllocator))) {
+                ALLOCATOR_PROPERTIES properties;
+                if (memPin->GetAllocatorRequirements(&properties) == S_OK
+                        || m_allocator->GetProperties(&properties) == S_OK) {
+                    if (properties.cbAlign == 0)
+                        properties.cbAlign = 1;
+              
+                    ALLOCATOR_PROPERTIES actualProperties;
+                    if (SUCCEEDED(hr = m_allocator->SetProperties(&properties, &actualProperties)))
+                        hr = memPin->NotifyAllocator(m_allocator, TRUE);
+                }
+                if (!SUCCEEDED(hr)) {
+                    m_allocator->Release();
+                    m_allocator = 0;
+                }
+            }
+            memPin->Release();
+        }        
+        if (!SUCCEEDED(hr))
+            pin->Disconnect();
+    }
+    return hr;
+}
+
+HRESULT DirectShowIOSource::ReceiveConnection(IPin *pConnector, const AM_MEDIA_TYPE *pmt)
+{
+    Q_UNUSED(pConnector);
+    Q_UNUSED(pmt);
+    // Output pin.
+    return E_NOTIMPL;
+}
+
+HRESULT DirectShowIOSource::Disconnect()
+{
+    if (!m_peerPin) {
+        return S_FALSE;
+    } else if (m_state != State_Stopped) {
+        return VFW_E_NOT_STOPPED;
+    } else {
+        HRESULT hr = m_peerPin->Disconnect();
+
+        if (!SUCCEEDED(hr))
+            return hr;
+
+        if (m_allocator) {
+            m_allocator->Release();
+            m_allocator = 0;
+        }
+
+        m_peerPin->Release();
+        m_peerPin = 0;
+
+        m_mediaType.clear();
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::ConnectedTo(IPin **ppPin)
+{
+    if (!ppPin) {
+        return E_POINTER;
+    } else {
+        QMutexLocker locker(&m_mutex);
+
+        if (!m_peerPin) {
+            *ppPin = 0;
+
+            return VFW_E_NOT_CONNECTED;
+        } else {
+            m_peerPin->AddRef();
+
+            *ppPin = m_peerPin;
+
+            return S_OK;
+        }
+    }
+}
+
+HRESULT DirectShowIOSource::ConnectionMediaType(AM_MEDIA_TYPE *pmt)
+{
+    if (!pmt) {
+        return E_POINTER;
+    } else {
+        QMutexLocker locker(&m_mutex);
+
+        if (!m_peerPin) {
+            pmt = 0;
+
+            return VFW_E_NOT_CONNECTED;
+        } else {
+            DirectShowMediaType::copy(pmt, m_mediaType);
+
+            return S_OK;
+        }
+    }
+}
+
+HRESULT DirectShowIOSource::QueryPinInfo(PIN_INFO *pInfo)
+{
+    if (!pInfo) {
+        return E_POINTER;
+    } else {
+        AddRef();
+
+        pInfo->pFilter = this;
+        pInfo->dir = PINDIR_OUTPUT;
+
+        const int bytes = qMin(MAX_FILTER_NAME, (m_pinId.length() + 1) * 2);
+
+        qMemCopy(pInfo->achName, m_pinId.utf16(), bytes);
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::QueryId(LPWSTR *Id)
+{
+    if (!Id) {
+        return E_POINTER;
+    } else {
+        const int bytes = (m_pinId.length() + 1) * 2;
+
+        *Id = static_cast<LPWSTR>(::CoTaskMemAlloc(bytes));
+
+        qMemCopy(*Id, m_pinId.utf16(), bytes);
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::QueryAccept(const AM_MEDIA_TYPE *pmt)
+{
+    if (!pmt) {
+        return E_POINTER;
+    } else if (pmt->majortype == MEDIATYPE_Stream) {
+        return S_OK;
+    } else {
+        return S_FALSE;
+    }
+}
+
+HRESULT DirectShowIOSource::EnumMediaTypes(IEnumMediaTypes **ppEnum)
+{
+    if (!ppEnum) {
+        return E_POINTER;
+    } else {
+        *ppEnum = createMediaTypeEnum();
+
+        return S_OK;
+    }
+}
+
+HRESULT DirectShowIOSource::QueryInternalConnections(IPin **apPin, ULONG *nPin)
+{
+    Q_UNUSED(apPin);
+    Q_UNUSED(nPin);
+
+    return E_NOTIMPL;
+}
+
+HRESULT DirectShowIOSource::EndOfStream()
+{
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::BeginFlush()
+{
+    return m_reader->BeginFlush();
+}
+
+HRESULT DirectShowIOSource::EndFlush()
+{
+    return m_reader->EndFlush();
+}
+
+HRESULT DirectShowIOSource::NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
+{
+    Q_UNUSED(tStart);
+    Q_UNUSED(tStop);
+    Q_UNUSED(dRate);
+
+    return S_OK;
+}
+
+HRESULT DirectShowIOSource::QueryDirection(PIN_DIRECTION *pPinDir)
+{
+    if (!pPinDir) {
+        return E_POINTER;
+    } else {
+        *pPinDir = PINDIR_OUTPUT;
+
+        return S_OK;
+    }
+}
+
+DirectShowRcSource::DirectShowRcSource(DirectShowEventLoop *loop)
+    : DirectShowIOSource(loop)
+{
+}
+
+bool DirectShowRcSource::open(const QUrl &url)
+{
+    m_file.moveToThread(QCoreApplication::instance()->thread());
+
+    m_file.setFileName(QLatin1Char(':') + url.path());
+
+    qDebug("qrc file %s", qPrintable(m_file.fileName()));
+
+    if (m_file.open(QIODevice::ReadOnly)) {
+        qDebug("Size %d", m_file.size());
+        qDebug("Sequential %d", int(m_file.isSequential()));
+
+        setDevice(&m_file);
+
+        return true;
+    } else {
+        return false;
+    }
+}