qwasmaudioinput.cpp

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// Copyright (C) 2022 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 "qwasmaudioinput_p.h"
 
#include <qaudioinput.h>
#include <private/qstdweb_p.h>
 
QT_BEGIN_NAMESPACE
 
Q_LOGGING_CATEGORY(qWasmAudioInput, "qt.multimedia.wasm.audioinput")
 
QWasmAudioInput::QWasmAudioInput(QAudioInput *parent)
    : QObject(parent), QPlatformAudioInput(parent)
{
    m_wasMuted = false;
    setDeviceSourceStream("");
}
 
QWasmAudioInput::~QWasmAudioInput()
{
}
 
void QWasmAudioInput::setMuted(bool muted)
{
    qCDebug(qWasmAudioInput) << Q_FUNC_INFO << muted;
    if (muted == m_wasMuted)
        return;
    if (m_mediaStream.isNull() || m_mediaStream.isUndefined())
        return;
    emscripten::val audioTracks = m_mediaStream.call<emscripten::val>("getAudioTracks");
    if (audioTracks.isNull() || audioTracks.isUndefined())
        return;
    if (audioTracks["length"].as<int>() < 1)
        return;
    audioTracks[0].set("muted", muted);
 
    emit mutedChanged(muted);
    m_wasMuted = muted;
 
}
 
bool QWasmAudioInput::isMuted() const
{
    return m_wasMuted;
}
 
void QWasmAudioInput::setAudioDevice(const QAudioDevice &audioDevice)
{
    if (device == audioDevice)
        return;
 
    device = audioDevice;
    setDeviceSourceStream(device.id().toStdString());
}
 
void QWasmAudioInput::setVolume(float volume)
{
    Q_UNUSED(volume)
  // TODO seems no easy way to set input volume
}
 
void QWasmAudioInput::setDeviceSourceStream(const std::string &id)
{
    qCDebug(qWasmAudioInput) << Q_FUNC_INFO << id;
 
    m_mediaInputStream.reset(new JsMediaInputStream());
 
    m_mediaInputStream->setUseAudio(true);
    m_mediaInputStream->setUseVideo(false);
 
    connect(m_mediaInputStream.get(), &JsMediaInputStream::mediaStreamReady, this,
        [this]() {
            qCDebug(qWasmAudioInput) << "mediaStreamReady";
 
            m_mediaStream = m_mediaInputStream->getMediaStream();
 
        });
 
    m_mediaInputStream->setStreamDevice(id);
}
 
emscripten::val QWasmAudioInput::mediaStream()
{
    return m_mediaStream;
}
 
QT_END_NAMESPACE
 
#include "moc_qwasmaudioinput_p.cpp"