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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 "qbasefilter.h" |
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#include "qpin.h" |
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|
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#include <QtCore/QMutex> |
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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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|
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class QEnumPins : public IEnumPins |
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{ |
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public: |
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QEnumPins(QBaseFilter *filter) : m_refCount(1), |
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m_filter(filter), m_pins(filter->pins()), m_index(0) |
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{ |
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m_filter->AddRef(); |
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} |
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|
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virtual ~QEnumPins() |
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{ |
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m_filter->Release(); |
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} |
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|
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STDMETHODIMP QueryInterface(const IID &iid,void **out) |
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{ |
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if (!out) { |
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return E_POINTER; |
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} |
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|
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HRESULT hr = S_OK; |
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if (iid == IID_IEnumPins) { |
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*out = static_cast<IEnumPins*>(this); |
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} else if (iid == IID_IUnknown) { |
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*out = static_cast<IUnknown*>(this); |
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} else { |
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*out = 0; |
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hr = E_NOINTERFACE; |
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} |
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|
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if (S_OK) |
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AddRef(); |
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return hr; |
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} |
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|
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STDMETHODIMP_(ULONG) AddRef() |
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{ |
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return InterlockedIncrement(&m_refCount); |
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} |
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|
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STDMETHODIMP_(ULONG) Release() |
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{ |
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ULONG refCount = InterlockedDecrement(&m_refCount); |
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if (refCount == 0) { |
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delete this; |
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} |
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|
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return refCount; |
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} |
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|
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STDMETHODIMP Next(ULONG count,IPin **ret,ULONG *fetched) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (m_filter->pins() != m_pins) { |
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return VFW_E_ENUM_OUT_OF_SYNC; |
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} |
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|
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if (fetched == 0 && count > 1) { |
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return E_INVALIDARG; |
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} |
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|
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if (!ret) { |
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return E_POINTER; |
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} |
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|
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uint nbfetched = 0; |
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while (nbfetched < count && m_index < m_pins.count()) { |
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IPin *current = m_pins[m_index]; |
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current->AddRef(); |
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ret[nbfetched] = current; |
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nbfetched++; |
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m_index++; |
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} |
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|
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if (fetched) { |
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*fetched = nbfetched; |
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} |
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|
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return nbfetched == count ? S_OK : S_FALSE; |
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} |
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|
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STDMETHODIMP Skip(ULONG count) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (m_filter->pins() != m_pins) { |
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return VFW_E_ENUM_OUT_OF_SYNC; |
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} |
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|
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m_index = qMin(m_index + int(count), m_pins.count()); |
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return m_index == m_pins.count() ? S_FALSE : S_OK; |
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} |
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|
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STDMETHODIMP Reset() |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_index = 0; |
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return S_OK; |
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} |
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|
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STDMETHODIMP Clone(IEnumPins **out) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (m_filter->pins() != m_pins) { |
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return VFW_E_ENUM_OUT_OF_SYNC; |
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} |
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|
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if (!out) { |
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return E_POINTER; |
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} |
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|
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*out = new QEnumPins(m_filter); |
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(*out)->Skip(m_index); |
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return S_OK; |
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} |
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|
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|
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private: |
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LONG m_refCount; |
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QBaseFilter *m_filter; |
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QList<QPin*> m_pins; |
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int m_index; |
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QMutex m_mutex; |
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}; |
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|
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|
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QBaseFilter::QBaseFilter(const CLSID &clsid): |
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m_refCount(1), m_clsid(clsid), m_clock(0), m_graph(0), m_state(State_Stopped) |
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{ |
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} |
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|
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QBaseFilter::~QBaseFilter() |
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{ |
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while (!m_pins.isEmpty()) { |
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delete m_pins.first(); |
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} |
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} |
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|
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const QList<QPin *> QBaseFilter::pins() const |
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{ |
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QMutexLocker locker(&m_mutex); |
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return m_pins; |
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} |
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|
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void QBaseFilter::addPin(QPin *pin) |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_pins.append(pin); |
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} |
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|
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void QBaseFilter::removePin(QPin *pin) |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_pins.removeAll(pin); |
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} |
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|
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FILTER_STATE QBaseFilter::state() const |
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{ |
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return m_state; |
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} |
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|
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IFilterGraph *QBaseFilter::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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STDMETHODIMP QBaseFilter::QueryInterface(REFIID iid, void **out) |
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{ |
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if (!out) { |
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return E_POINTER; |
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} |
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|
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HRESULT hr = S_OK; |
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|
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if (iid == IID_IBaseFilter) { |
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*out = static_cast<IBaseFilter*>(this); |
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} else if (iid == IID_IMediaFilter) { |
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*out = static_cast<IMediaFilter*>(this); |
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} else if (iid == IID_IPersist) { |
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*out = static_cast<IPersist*>(this); |
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} else if (iid == IID_IUnknown) { |
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*out = static_cast<IUnknown*>(static_cast<IBaseFilter*>(this)); |
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} |
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else if (iid == IID_IMediaPosition || iid == IID_IMediaSeeking) { |
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if (inputPins().isEmpty()) { |
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*out = getUpStreamInterface(iid); |
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if (*out) { |
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return S_OK; //we return here to avoid adding a reference |
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} else { |
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hr = E_NOINTERFACE; |
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} |
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} else if (iid == IID_IMediaSeeking) { |
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*out = static_cast<IMediaSeeking*>(this); |
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} else if (iid == IID_IMediaPosition ||iid == IID_IDispatch) { |
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*out = static_cast<IMediaPosition*>(this); |
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} |
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} else { |
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*out = 0; |
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hr = E_NOINTERFACE; |
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} |
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|
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if (hr == S_OK) { |
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AddRef(); |
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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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STDMETHODIMP_(ULONG) QBaseFilter::AddRef() |
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{ |
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return InterlockedIncrement(&m_refCount); |
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} |
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|
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STDMETHODIMP_(ULONG) QBaseFilter::Release() |
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{ |
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ULONG refCount = InterlockedDecrement(&m_refCount); |
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if (refCount == 0) { |
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delete this; |
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} |
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|
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return refCount; |
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} |
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|
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STDMETHODIMP QBaseFilter::GetClassID(CLSID *clsid) |
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{ |
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QMutexLocker locker(&m_mutex); |
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*clsid = m_clsid; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::Stop() |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_state = State_Stopped; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::Pause() |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_state = State_Paused; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::Run(REFERENCE_TIME) |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_state = State_Running; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::GetState(DWORD, FILTER_STATE *state) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (!state) { |
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return E_POINTER; |
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} |
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|
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*state = m_state; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::SetSyncSource(IReferenceClock *clock) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (clock) { |
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clock->AddRef(); |
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} |
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if (m_clock) { |
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m_clock->Release(); |
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} |
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m_clock = clock; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::GetSyncSource(IReferenceClock **clock) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (!clock) { |
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return E_POINTER; |
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} |
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|
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if (m_clock) { |
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m_clock->AddRef(); |
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} |
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|
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*clock = m_clock; |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::FindPin(LPCWSTR name, IPin**pin) |
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{ |
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if (!pin) { |
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return E_POINTER; |
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} |
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|
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for (int i = 0; i < m_pins.count(); ++i) { |
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IPin * current = m_pins.at(i); |
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PIN_INFO info; |
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current->QueryPinInfo(&info); |
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if (info.pFilter) { |
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info.pFilter->Release(); |
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} |
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if ( wcscmp(info.achName, name) == 0) { |
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*pin = current; |
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current->AddRef(); |
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return S_OK; |
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} |
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} |
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|
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*pin = 0; |
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return VFW_E_NOT_FOUND; |
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} |
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|
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STDMETHODIMP QBaseFilter::QueryFilterInfo(FILTER_INFO *info ) |
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{ |
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QMutexLocker locker(&m_mutex); |
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if (!info) { |
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return E_POINTER; |
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} |
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info->pGraph = m_graph; |
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if (m_graph) { |
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m_graph->AddRef(); |
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} |
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qMemCopy(info->achName, m_name.utf16(), qMin(MAX_FILTER_NAME, m_name.length()+1) *2); |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::JoinFilterGraph(IFilterGraph *graph, LPCWSTR name) |
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{ |
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QMutexLocker locker(&m_mutex); |
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m_graph = graph; |
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m_name = QString::fromWCharArray(name); |
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return S_OK; |
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} |
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|
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STDMETHODIMP QBaseFilter::EnumPins( IEnumPins **ep) |
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{ |
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if (!ep) { |
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return E_POINTER; |
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} |
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|
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*ep = new QEnumPins(this); |
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return S_OK; |
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} |
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|
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|
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STDMETHODIMP QBaseFilter::QueryVendorInfo(LPWSTR *) |
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{ |
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//we give no information on that |
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return E_NOTIMPL; |
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} |
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|
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//implementation from IMediaSeeking |
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STDMETHODIMP QBaseFilter::GetCapabilities(DWORD *pCapabilities) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
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} |
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|
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HRESULT hr = ms->GetCapabilities(pCapabilities); |
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ms->Release(); |
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return hr; |
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} |
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|
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STDMETHODIMP QBaseFilter::CheckCapabilities(DWORD *pCapabilities) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
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} |
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|
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HRESULT hr = ms->CheckCapabilities(pCapabilities); |
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ms->Release(); |
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return hr; |
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} |
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|
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STDMETHODIMP QBaseFilter::IsFormatSupported(const GUID *pFormat) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
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} |
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|
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HRESULT hr = ms->IsFormatSupported(pFormat); |
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ms->Release(); |
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return hr; |
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} |
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|
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STDMETHODIMP QBaseFilter::QueryPreferredFormat(GUID *pFormat) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
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} |
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|
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HRESULT hr = ms->QueryPreferredFormat(pFormat); |
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ms->Release(); |
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return hr; |
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} |
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|
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STDMETHODIMP QBaseFilter::GetTimeFormat(GUID *pFormat) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
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} |
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|
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HRESULT hr = ms->GetTimeFormat(pFormat); |
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ms->Release(); |
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return hr; |
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} |
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|
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STDMETHODIMP QBaseFilter::IsUsingTimeFormat(const GUID *pFormat) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
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if (!ms) { |
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return E_NOTIMPL; |
| 448 |
} |
| 449 |
|
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HRESULT hr = ms->IsUsingTimeFormat(pFormat); |
| 451 |
ms->Release(); |
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return hr; |
| 453 |
} |
| 454 |
|
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STDMETHODIMP QBaseFilter::SetTimeFormat(const GUID *pFormat) |
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{ |
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IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 458 |
if (!ms) { |
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return E_NOTIMPL; |
| 460 |
} |
| 461 |
|
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HRESULT hr = ms->SetTimeFormat(pFormat); |
| 463 |
ms->Release(); |
| 464 |
return hr; |
| 465 |
} |
| 466 |
|
| 467 |
STDMETHODIMP QBaseFilter::GetDuration(LONGLONG *pDuration) |
| 468 |
{ |
| 469 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 470 |
if (!ms) { |
| 471 |
return E_NOTIMPL; |
| 472 |
} |
| 473 |
|
| 474 |
HRESULT hr = ms->GetDuration(pDuration); |
| 475 |
ms->Release(); |
| 476 |
return hr; |
| 477 |
} |
| 478 |
|
| 479 |
STDMETHODIMP QBaseFilter::GetStopPosition(LONGLONG *pStop) |
| 480 |
{ |
| 481 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 482 |
if (!ms) { |
| 483 |
return E_NOTIMPL; |
| 484 |
} |
| 485 |
|
| 486 |
HRESULT hr = ms->GetStopPosition(pStop); |
| 487 |
ms->Release(); |
| 488 |
return hr; |
| 489 |
} |
| 490 |
|
| 491 |
STDMETHODIMP QBaseFilter::GetCurrentPosition(LONGLONG *pCurrent) |
| 492 |
{ |
| 493 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 494 |
if (!ms) { |
| 495 |
return E_NOTIMPL; |
| 496 |
} |
| 497 |
|
| 498 |
HRESULT hr = ms->GetCurrentPosition(pCurrent); |
| 499 |
ms->Release(); |
| 500 |
return hr; |
| 501 |
} |
| 502 |
|
| 503 |
STDMETHODIMP QBaseFilter::ConvertTimeFormat(LONGLONG *pTarget, |
| 504 |
const GUID *pTargetFormat, LONGLONG Source, const GUID *pSourceFormat) |
| 505 |
{ |
| 506 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 507 |
if (!ms) { |
| 508 |
return E_NOTIMPL; |
| 509 |
} |
| 510 |
|
| 511 |
HRESULT hr = ms->ConvertTimeFormat(pTarget, pTargetFormat, Source, pSourceFormat); |
| 512 |
ms->Release(); |
| 513 |
return hr; |
| 514 |
} |
| 515 |
|
| 516 |
STDMETHODIMP QBaseFilter::SetPositions(LONGLONG *pCurrent, DWORD dwCurrentFlags, LONGLONG *pStop, DWORD dwStopFlags) |
| 517 |
{ |
| 518 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 519 |
if (!ms) { |
| 520 |
return E_NOTIMPL; |
| 521 |
} |
| 522 |
|
| 523 |
HRESULT hr = ms->SetPositions(pCurrent, dwCurrentFlags, pStop, dwStopFlags); |
| 524 |
ms->Release(); |
| 525 |
return hr; |
| 526 |
} |
| 527 |
|
| 528 |
STDMETHODIMP QBaseFilter::GetPositions(LONGLONG *pCurrent, LONGLONG *pStop) |
| 529 |
{ |
| 530 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 531 |
if (!ms) { |
| 532 |
return E_NOTIMPL; |
| 533 |
} |
| 534 |
|
| 535 |
HRESULT hr = ms->GetPositions(pCurrent, pStop); |
| 536 |
ms->Release(); |
| 537 |
return hr; |
| 538 |
} |
| 539 |
|
| 540 |
STDMETHODIMP QBaseFilter::GetAvailable(LONGLONG *pEarliest, LONGLONG *pLatest) |
| 541 |
{ |
| 542 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 543 |
if (!ms) { |
| 544 |
return E_NOTIMPL; |
| 545 |
} |
| 546 |
|
| 547 |
HRESULT hr = ms->GetAvailable(pEarliest, pLatest); |
| 548 |
ms->Release(); |
| 549 |
return hr; |
| 550 |
} |
| 551 |
|
| 552 |
STDMETHODIMP QBaseFilter::SetRate(double dRate) |
| 553 |
{ |
| 554 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 555 |
if (!ms) { |
| 556 |
return E_NOTIMPL; |
| 557 |
} |
| 558 |
|
| 559 |
HRESULT hr = ms->SetRate(dRate); |
| 560 |
ms->Release(); |
| 561 |
return hr; |
| 562 |
} |
| 563 |
|
| 564 |
STDMETHODIMP QBaseFilter::GetRate(double *dRate) |
| 565 |
{ |
| 566 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 567 |
if (!ms) { |
| 568 |
return E_NOTIMPL; |
| 569 |
} |
| 570 |
|
| 571 |
HRESULT hr = ms->GetRate(dRate); |
| 572 |
ms->Release(); |
| 573 |
return hr; |
| 574 |
} |
| 575 |
|
| 576 |
STDMETHODIMP QBaseFilter::GetPreroll(LONGLONG *pllPreroll) |
| 577 |
{ |
| 578 |
IMediaSeeking *ms = getUpstreamMediaSeeking(); |
| 579 |
if (!ms) { |
| 580 |
return E_NOTIMPL; |
| 581 |
} |
| 582 |
|
| 583 |
HRESULT hr = ms->GetPreroll(pllPreroll); |
| 584 |
ms->Release(); |
| 585 |
return hr; |
| 586 |
} |
| 587 |
|
| 588 |
//implementation from IMediaPosition |
| 589 |
STDMETHODIMP QBaseFilter::get_Duration(REFTIME *plength) |
| 590 |
{ |
| 591 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 592 |
if (!mp) { |
| 593 |
return E_NOTIMPL; |
| 594 |
} |
| 595 |
|
| 596 |
HRESULT hr = mp->get_Duration(plength); |
| 597 |
mp->Release(); |
| 598 |
return hr; |
| 599 |
} |
| 600 |
|
| 601 |
STDMETHODIMP QBaseFilter::put_CurrentPosition(REFTIME llTime) |
| 602 |
{ |
| 603 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 604 |
if (!mp) { |
| 605 |
return E_NOTIMPL; |
| 606 |
} |
| 607 |
|
| 608 |
HRESULT hr = mp->put_CurrentPosition(llTime); |
| 609 |
mp->Release(); |
| 610 |
return hr; |
| 611 |
} |
| 612 |
|
| 613 |
STDMETHODIMP QBaseFilter::get_CurrentPosition(REFTIME *pllTime) |
| 614 |
{ |
| 615 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 616 |
if (!mp) { |
| 617 |
return E_NOTIMPL; |
| 618 |
} |
| 619 |
|
| 620 |
HRESULT hr = mp->get_CurrentPosition(pllTime); |
| 621 |
mp->Release(); |
| 622 |
return hr; |
| 623 |
} |
| 624 |
|
| 625 |
STDMETHODIMP QBaseFilter::get_StopTime(REFTIME *pllTime) |
| 626 |
{ |
| 627 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 628 |
if (!mp) { |
| 629 |
return E_NOTIMPL; |
| 630 |
} |
| 631 |
|
| 632 |
HRESULT hr = mp->get_StopTime(pllTime); |
| 633 |
mp->Release(); |
| 634 |
return hr; |
| 635 |
} |
| 636 |
|
| 637 |
STDMETHODIMP QBaseFilter::put_StopTime(REFTIME llTime) |
| 638 |
{ |
| 639 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 640 |
if (!mp) { |
| 641 |
return E_NOTIMPL; |
| 642 |
} |
| 643 |
|
| 644 |
HRESULT hr = mp->put_StopTime(llTime); |
| 645 |
mp->Release(); |
| 646 |
return hr; |
| 647 |
} |
| 648 |
|
| 649 |
STDMETHODIMP QBaseFilter::get_PrerollTime(REFTIME *pllTime) |
| 650 |
{ |
| 651 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 652 |
if (!mp) { |
| 653 |
return E_NOTIMPL; |
| 654 |
} |
| 655 |
|
| 656 |
HRESULT hr = mp->get_PrerollTime(pllTime); |
| 657 |
mp->Release(); |
| 658 |
return hr; |
| 659 |
} |
| 660 |
|
| 661 |
STDMETHODIMP QBaseFilter::put_PrerollTime(REFTIME llTime) |
| 662 |
{ |
| 663 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 664 |
if (!mp) { |
| 665 |
return E_NOTIMPL; |
| 666 |
} |
| 667 |
|
| 668 |
HRESULT hr = mp->put_PrerollTime(llTime); |
| 669 |
mp->Release(); |
| 670 |
return hr; |
| 671 |
} |
| 672 |
|
| 673 |
STDMETHODIMP QBaseFilter::put_Rate(double dRate) |
| 674 |
{ |
| 675 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 676 |
if (!mp) { |
| 677 |
return E_NOTIMPL; |
| 678 |
} |
| 679 |
|
| 680 |
HRESULT hr = mp->put_Rate(dRate); |
| 681 |
mp->Release(); |
| 682 |
return hr; |
| 683 |
} |
| 684 |
|
| 685 |
STDMETHODIMP QBaseFilter::get_Rate(double *pdRate) |
| 686 |
{ |
| 687 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 688 |
if (!mp) { |
| 689 |
return E_NOTIMPL; |
| 690 |
} |
| 691 |
|
| 692 |
HRESULT hr = mp->get_Rate(pdRate); |
| 693 |
mp->Release(); |
| 694 |
return hr; |
| 695 |
} |
| 696 |
|
| 697 |
STDMETHODIMP QBaseFilter::CanSeekForward(LONG *pCanSeekForward) |
| 698 |
{ |
| 699 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 700 |
if (!mp) { |
| 701 |
return E_NOTIMPL; |
| 702 |
} |
| 703 |
|
| 704 |
HRESULT hr = mp->CanSeekForward(pCanSeekForward); |
| 705 |
mp->Release(); |
| 706 |
return hr; |
| 707 |
} |
| 708 |
|
| 709 |
STDMETHODIMP QBaseFilter::CanSeekBackward(LONG *pCanSeekBackward) |
| 710 |
{ |
| 711 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 712 |
if (!mp) { |
| 713 |
return E_NOTIMPL; |
| 714 |
} |
| 715 |
|
| 716 |
HRESULT hr = mp->CanSeekBackward(pCanSeekBackward); |
| 717 |
mp->Release(); |
| 718 |
return hr; |
| 719 |
} |
| 720 |
|
| 721 |
STDMETHODIMP QBaseFilter::GetTypeInfoCount(UINT *pctinfo) |
| 722 |
{ |
| 723 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 724 |
if (!mp) { |
| 725 |
return E_NOTIMPL; |
| 726 |
} |
| 727 |
|
| 728 |
HRESULT hr = mp->GetTypeInfoCount(pctinfo); |
| 729 |
mp->Release(); |
| 730 |
return hr; |
| 731 |
} |
| 732 |
|
| 733 |
STDMETHODIMP QBaseFilter::GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo) |
| 734 |
{ |
| 735 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 736 |
if (!mp) { |
| 737 |
return E_NOTIMPL; |
| 738 |
} |
| 739 |
|
| 740 |
HRESULT hr = mp->GetTypeInfo(iTInfo, lcid, ppTInfo); |
| 741 |
mp->Release(); |
| 742 |
return hr; |
| 743 |
} |
| 744 |
|
| 745 |
STDMETHODIMP QBaseFilter::GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId) |
| 746 |
{ |
| 747 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 748 |
if (!mp) { |
| 749 |
return E_NOTIMPL; |
| 750 |
} |
| 751 |
|
| 752 |
HRESULT hr = mp->GetIDsOfNames(riid, rgszNames, cNames, lcid, rgDispId); |
| 753 |
mp->Release(); |
| 754 |
return hr; |
| 755 |
} |
| 756 |
|
| 757 |
STDMETHODIMP QBaseFilter::Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, |
| 758 |
VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr) |
| 759 |
{ |
| 760 |
IMediaPosition *mp = getUpstreamMediaPosition(); |
| 761 |
if (!mp) { |
| 762 |
return E_NOTIMPL; |
| 763 |
} |
| 764 |
|
| 765 |
HRESULT hr = mp->Invoke(dispIdMember, riid, lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr); |
| 766 |
mp->Release(); |
| 767 |
return hr; |
| 768 |
} |
| 769 |
|
| 770 |
|
| 771 |
IMediaSeeking *QBaseFilter::getUpstreamMediaSeeking() |
| 772 |
{ |
| 773 |
return static_cast<IMediaSeeking*>(getUpStreamInterface(IID_IMediaSeeking)); |
| 774 |
} |
| 775 |
|
| 776 |
IMediaPosition *QBaseFilter::getUpstreamMediaPosition() |
| 777 |
{ |
| 778 |
return static_cast<IMediaPosition*>(getUpStreamInterface(IID_IMediaPosition)); |
| 779 |
} |
| 780 |
|
| 781 |
QList<QPin*> QBaseFilter::inputPins() const |
| 782 |
{ |
| 783 |
QList<QPin*> ret; |
| 784 |
for(int i = 0; i < m_pins.count(); ++i) { |
| 785 |
QPin * pin = m_pins.at(i); |
| 786 |
if (pin->direction() == PINDIR_INPUT) { |
| 787 |
ret += pin; |
| 788 |
} |
| 789 |
} |
| 790 |
return ret; |
| 791 |
} |
| 792 |
|
| 793 |
QList<QPin*> QBaseFilter::outputPins() const |
| 794 |
{ |
| 795 |
QList<QPin*> ret; |
| 796 |
for(int i = 0; i < m_pins.count(); ++i) { |
| 797 |
QPin * pin = m_pins.at(i); |
| 798 |
if (pin->direction() == PINDIR_OUTPUT) { |
| 799 |
ret += pin; |
| 800 |
} |
| 801 |
} |
| 802 |
return ret; |
| 803 |
} |
| 804 |
|
| 805 |
void *QBaseFilter::getUpStreamInterface(const IID &iid) const |
| 806 |
{ |
| 807 |
const QList<QPin*> inputs = inputPins(); |
| 808 |
for (int i = 0; i < inputs.count(); ++i) { |
| 809 |
IPin *out = inputs.at(i)->connected(); |
| 810 |
if (out) { |
| 811 |
void *ms = 0; |
| 812 |
out->QueryInterface(iid, &ms); |
| 813 |
if (ms) { |
| 814 |
return ms; |
| 815 |
} |
| 816 |
} |
| 817 |
} |
| 818 |
//none was found |
| 819 |
return 0; |
| 820 |
} |
| 821 |
|
| 822 |
|
| 823 |
//addition |
| 824 |
HRESULT QBaseFilter::processSample(IMediaSample *) |
| 825 |
{ |
| 826 |
return S_OK; |
| 827 |
} |
| 828 |
|
| 829 |
} |
| 830 |
} |
| 831 |
|
| 832 |
QT_END_NAMESPACE |
