| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "samplegrabber.h" |
| #include "mfaudioprobecontrol.h" |
| |
| STDMETHODIMP SampleGrabberCallback::QueryInterface(REFIID riid, void** ppv) |
| { |
| if (!ppv) |
| return E_POINTER; |
| if (riid == IID_IMFSampleGrabberSinkCallback) { |
| *ppv = static_cast<IMFSampleGrabberSinkCallback*>(this); |
| } else if (riid == IID_IMFClockStateSink) { |
| *ppv = static_cast<IMFClockStateSink*>(this); |
| } else if (riid == IID_IUnknown) { |
| *ppv = static_cast<IUnknown*>(this); |
| } else { |
| *ppv = NULL; |
| return E_NOINTERFACE; |
| } |
| AddRef(); |
| return S_OK; |
| } |
| |
| STDMETHODIMP_(ULONG) SampleGrabberCallback::AddRef() |
| { |
| return InterlockedIncrement(&m_cRef); |
| } |
| |
| STDMETHODIMP_(ULONG) SampleGrabberCallback::Release() |
| { |
| ULONG cRef = InterlockedDecrement(&m_cRef); |
| if (cRef == 0) { |
| delete this; |
| } |
| return cRef; |
| |
| } |
| |
| // IMFClockStateSink methods. |
| |
| STDMETHODIMP SampleGrabberCallback::OnClockStart(MFTIME hnsSystemTime, LONGLONG llClockStartOffset) |
| { |
| Q_UNUSED(hnsSystemTime); |
| Q_UNUSED(llClockStartOffset); |
| return S_OK; |
| } |
| |
| STDMETHODIMP SampleGrabberCallback::OnClockStop(MFTIME hnsSystemTime) |
| { |
| Q_UNUSED(hnsSystemTime); |
| return S_OK; |
| } |
| |
| STDMETHODIMP SampleGrabberCallback::OnClockPause(MFTIME hnsSystemTime) |
| { |
| Q_UNUSED(hnsSystemTime); |
| return S_OK; |
| } |
| |
| STDMETHODIMP SampleGrabberCallback::OnClockRestart(MFTIME hnsSystemTime) |
| { |
| Q_UNUSED(hnsSystemTime); |
| return S_OK; |
| } |
| |
| STDMETHODIMP SampleGrabberCallback::OnClockSetRate(MFTIME hnsSystemTime, float flRate) |
| { |
| Q_UNUSED(hnsSystemTime); |
| Q_UNUSED(flRate); |
| return S_OK; |
| } |
| |
| // IMFSampleGrabberSink methods. |
| |
| STDMETHODIMP SampleGrabberCallback::OnSetPresentationClock(IMFPresentationClock* pClock) |
| { |
| Q_UNUSED(pClock); |
| return S_OK; |
| } |
| |
| STDMETHODIMP SampleGrabberCallback::OnShutdown() |
| { |
| return S_OK; |
| } |
| |
| void AudioSampleGrabberCallback::addProbe(MFAudioProbeControl* probe) |
| { |
| QMutexLocker locker(&m_audioProbeMutex); |
| |
| if (m_audioProbes.contains(probe)) |
| return; |
| |
| m_audioProbes.append(probe); |
| } |
| |
| void AudioSampleGrabberCallback::removeProbe(MFAudioProbeControl* probe) |
| { |
| QMutexLocker locker(&m_audioProbeMutex); |
| m_audioProbes.removeOne(probe); |
| } |
| |
| void AudioSampleGrabberCallback::setFormat(const QAudioFormat& format) |
| { |
| m_format = format; |
| } |
| |
| STDMETHODIMP AudioSampleGrabberCallback::OnProcessSample(REFGUID guidMajorMediaType, DWORD dwSampleFlags, |
| LONGLONG llSampleTime, LONGLONG llSampleDuration, const BYTE * pSampleBuffer, |
| DWORD dwSampleSize) |
| { |
| Q_UNUSED(dwSampleFlags); |
| Q_UNUSED(llSampleTime); |
| Q_UNUSED(llSampleDuration); |
| |
| if (guidMajorMediaType != GUID_NULL && guidMajorMediaType != MFMediaType_Audio) |
| return S_OK; |
| |
| QMutexLocker locker(&m_audioProbeMutex); |
| |
| if (m_audioProbes.isEmpty()) |
| return S_OK; |
| |
| // Check if sample has a presentation time |
| if (llSampleTime == _I64_MAX) { |
| // Set default QAudioBuffer start time |
| llSampleTime = -1; |
| } else { |
| // WMF uses 100-nanosecond units, Qt uses microseconds |
| llSampleTime /= 10; |
| } |
| |
| for (MFAudioProbeControl* probe : qAsConst(m_audioProbes)) |
| probe->bufferProbed((const char*)pSampleBuffer, dwSampleSize, m_format, llSampleTime); |
| |
| return S_OK; |
| } |