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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "mfdecodersourcereader_p.h"
++
++ #include <decoder/mfdecodersourcereadercallback_p.h>
++
++ #include <QtCore/qdebug.h>
++ #include <QtCore/qlogging.h>
++
++ #include <mfapi.h>
++ #include <mferror.h>
++
++ #include <system_error>
++
++ QT_BEGIN_NAMESPACE
++
++ ComPtr<IMFMediaType> MFDecoderSourceReader::setSource(const ComPtr<IMFMediaSource> &source, QAudioFormat::SampleFormat sampleFormat)
++ {
++ ComPtr<IMFMediaType> mediaType;
++ m_sourceReader.Reset();
++
++ if (m_sourceReaderCallback) {
++ disconnect(m_sourceReaderCallback.Get());
++
++ m_sourceReaderCallback.Reset();
++ }
++
++ if (!source)
++ return mediaType;
++
++ m_sourceReaderCallback = makeComObject<MFSourceReaderCallback>();
++
++ connect(m_sourceReaderCallback.Get(), &MFSourceReaderCallback::finished, this,
++ &MFDecoderSourceReader::finished);
++ connect(m_sourceReaderCallback.Get(), &MFSourceReaderCallback::newSample, this,
++ &MFDecoderSourceReader::newSample);
++
++ ComPtr<IMFAttributes> attr;
++ MFCreateAttributes(attr.GetAddressOf(), 1);
++ if (FAILED(attr->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, m_sourceReaderCallback.Get())))
++ return mediaType;
++ if (FAILED(attr->SetUINT32(MF_SOURCE_READER_DISCONNECT_MEDIASOURCE_ON_SHUTDOWN, TRUE)))
++ return mediaType;
++
++ HRESULT hr = MFCreateSourceReaderFromMediaSource(source.Get(), attr.Get(), m_sourceReader.GetAddressOf());
++ if (FAILED(hr)) {
++ qWarning() << "MFDecoderSourceReader: failed to set up source reader: "
++ << std::system_category().message(hr).c_str();
++ return mediaType;
++ }
++
++ m_sourceReader->SetStreamSelection(DWORD(MF_SOURCE_READER_ALL_STREAMS), FALSE);
++ m_sourceReader->SetStreamSelection(DWORD(MF_SOURCE_READER_FIRST_AUDIO_STREAM), TRUE);
++
++ ComPtr<IMFMediaType> pPartialType;
++ MFCreateMediaType(pPartialType.GetAddressOf());
++ pPartialType->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Audio);
++ pPartialType->SetGUID(MF_MT_SUBTYPE, sampleFormat == QAudioFormat::Float ? MFAudioFormat_Float : MFAudioFormat_PCM);
++ m_sourceReader->SetCurrentMediaType(DWORD(MF_SOURCE_READER_FIRST_AUDIO_STREAM), nullptr, pPartialType.Get());
++ m_sourceReader->GetCurrentMediaType(DWORD(MF_SOURCE_READER_FIRST_AUDIO_STREAM), mediaType.GetAddressOf());
++ // Ensure the stream is selected.
++ m_sourceReader->SetStreamSelection(DWORD(MF_SOURCE_READER_FIRST_AUDIO_STREAM), TRUE);
++
++ return mediaType;
++ }
++
++ void MFDecoderSourceReader::readNextSample()
++ {
++ if (m_sourceReader)
++ m_sourceReader->ReadSample(MF_SOURCE_READER_FIRST_AUDIO_STREAM, 0, NULL, NULL, NULL, NULL);
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_mfdecodersourcereader_p.cpp"