diff options
Diffstat (limited to 'src/plugins/wasapi/qwasapiaudiodeviceinfo.cpp')
-rw-r--r-- | src/plugins/wasapi/qwasapiaudiodeviceinfo.cpp | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/plugins/wasapi/qwasapiaudiodeviceinfo.cpp b/src/plugins/wasapi/qwasapiaudiodeviceinfo.cpp new file mode 100644 index 000000000..e1a46841d --- /dev/null +++ b/src/plugins/wasapi/qwasapiaudiodeviceinfo.cpp @@ -0,0 +1,167 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). +** 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 "qwasapiaudiodeviceinfo.h" +#include "qwasapiutils.h" + +#include <Audioclient.h> + +QT_BEGIN_NAMESPACE + +Q_LOGGING_CATEGORY(lcMmDeviceInfo, "qt.multimedia.deviceinfo") + +QWasapiAudioDeviceInfo::QWasapiAudioDeviceInfo(QByteArray dev, QAudio::Mode mode) + : m_deviceName(dev) +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__ << dev << mode; + m_interface = QWasapiUtils::createOrGetInterface(dev, mode); + + QAudioFormat referenceFormat = m_interface->m_mixFormat; + + const int rates[] = {8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200, 96000, 192000}; + for (int rate : rates) { + QAudioFormat f = referenceFormat; + f.setSampleRate(rate); + if (isFormatSupported(f)) + m_sampleRates.append(rate); + } + + for (int i = 1; i <= 18; ++i) { + QAudioFormat f = referenceFormat; + f.setChannelCount(i); + if (isFormatSupported(f)) + m_channelCounts.append(i); + } + + const int sizes[] = {8, 12, 16, 20, 24, 32, 64}; + for (int s : sizes) { + QAudioFormat f = referenceFormat; + f.setSampleSize(s); + if (isFormatSupported(f)) + m_sampleSizes.append(s); + } + + referenceFormat.setSampleType(QAudioFormat::SignedInt); + if (isFormatSupported(referenceFormat)) + m_sampleTypes.append(QAudioFormat::SignedInt); + + referenceFormat.setSampleType(QAudioFormat::Float); + if (isFormatSupported(referenceFormat)) + m_sampleTypes.append(QAudioFormat::Float); +} + +QWasapiAudioDeviceInfo::~QWasapiAudioDeviceInfo() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; +} + +bool QWasapiAudioDeviceInfo::isFormatSupported(const QAudioFormat& format) const +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__ << format; + + WAVEFORMATEX nfmt; + if (!QWasapiUtils::convertToNativeFormat(format, &nfmt)) + return false; + + WAVEFORMATEX closest; + WAVEFORMATEX *pClosest = &closest; + HRESULT hr; + hr = m_interface->m_client->IsFormatSupported(AUDCLNT_SHAREMODE_SHARED, &nfmt, &pClosest); + + if (hr == S_OK) // S_FALSE is inside SUCCEEDED() + return true; + + if (lcMmDeviceInfo().isDebugEnabled()) { + QAudioFormat f; + QWasapiUtils::convertFromNativeFormat(pClosest, &f); + qCDebug(lcMmDeviceInfo) << __FUNCTION__ << hr << "Closest match is:" << f; + } + + return false; +} + +QAudioFormat QWasapiAudioDeviceInfo::preferredFormat() const +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_interface->m_mixFormat; +} + +QString QWasapiAudioDeviceInfo::deviceName() const +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_deviceName; +} + +QStringList QWasapiAudioDeviceInfo::supportedCodecs() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return QStringList() << QStringLiteral("audio/pcm"); +} + +QList<int> QWasapiAudioDeviceInfo::supportedSampleRates() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_sampleRates; +} + +QList<int> QWasapiAudioDeviceInfo::supportedChannelCounts() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_channelCounts; +} + +QList<int> QWasapiAudioDeviceInfo::supportedSampleSizes() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_sampleSizes; +} + +QList<QAudioFormat::Endian> QWasapiAudioDeviceInfo::supportedByteOrders() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return QList<QAudioFormat::Endian>() << m_interface->m_mixFormat.byteOrder(); +} + +QList<QAudioFormat::SampleType> QWasapiAudioDeviceInfo::supportedSampleTypes() +{ + qCDebug(lcMmDeviceInfo) << __FUNCTION__; + return m_sampleTypes; +} + +QT_END_NAMESPACE |