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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;
emscripten::val navigator = emscripten::val::global("navigator");
emscripten::val mediaDevices = navigator["mediaDevices"];
if (mediaDevices.isNull() || mediaDevices.isUndefined()) {
qWarning() << "No media devices found";
return;
}
qstdweb::PromiseCallbacks getUserMediaCallback{
// default
.thenFunc =
[this](emscripten::val stream) {
qCDebug(qWasmAudioInput) << "getUserMediaSuccess";
m_mediaStream = stream;
},
.catchFunc =
[](emscripten::val error) {
qCDebug(qWasmAudioInput)
<< "addCameraSourceElement getUserMedia fail"
<< QString::fromStdString(error["name"].as<std::string>())
<< QString::fromStdString(error["message"].as<std::string>());
}
};
emscripten::val constraints = emscripten::val::object();
constraints.set("audio", true);
if (!id.empty())
constraints.set("deviceId", id);
// we do it this way as this prompts user for mic permissions
qstdweb::Promise::make(mediaDevices, QStringLiteral("getUserMedia"),
std::move(getUserMediaCallback), constraints);
}
emscripten::val QWasmAudioInput::mediaStream()
{
return m_mediaStream;
}
QT_END_NAMESPACE
#include "moc_qwasmaudioinput_p.cpp"
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