QList<QStringList> WebcamDetectElement::webcams(QString dir)
{
Sleep::msleep(250);
QDir devicesDir(dir);
QStringList devices = devicesDir.entryList(QStringList("video*"),
QDir::System |
QDir::Readable |
QDir::Writable |
QDir::NoSymLinks |
QDir::NoDotAndDotDot |
QDir::CaseSensitive,
QDir::Name);
QList<QStringList> webcams;
struct v4l2_capability capability;
foreach (QString device, devices)
{
QFile devicePath(devicesDir.absoluteFilePath(device));
if (!devicePath.open(QIODevice::ReadWrite))
continue;
ioctl(devicePath.handle(), VIDIOC_QUERYCAP, &capability);
if (capability.capabilities & V4L2_CAP_VIDEO_CAPTURE)
webcams << (QStringList() << devicePath.fileName() << QString((const char *)capability.card));
devicePath.close();
}
QStringList CameraOutV4L2::webcams() const
{
QDir devicesDir("/dev");
QStringList devices = devicesDir.entryList(QStringList() << "video*",
QDir::System
| QDir::Readable
| QDir::Writable
| QDir::NoSymLinks
| QDir::NoDotAndDotDot
| QDir::CaseSensitive,
QDir::Name);
QStringList webcams;
QFile device;
v4l2_capability capability;
memset(&capability, 0, sizeof(v4l2_capability));
for (const QString &devicePath: devices) {
device.setFileName(devicesDir.absoluteFilePath(devicePath));
if (device.open(QIODevice::ReadWrite)) {
this->xioctl(device.handle(), VIDIOC_QUERYCAP, &capability);
if (capability.capabilities & V4L2_CAP_VIDEO_OUTPUT)
webcams << device.fileName();
device.close();
}
}
return webcams;
}
void AudioDevOSS::updateDevices()
{
QStringList inputs;
QStringList outputs;
QMap<QString, AkAudioCaps> pinCapsMap;
QMap<QString, QString> pinDescriptionMap;
QMap<QString, int> fragmentSizeMap;
QDir devicesDir("/dev");
QStringList devices = devicesDir.entryList(QStringList() << "mixer*",
QDir::System
| QDir::Readable
| QDir::Writable
| QDir::NoSymLinks
| QDir::NoDotAndDotDot
| QDir::CaseSensitive,
QDir::Name);
for (const auto &devicePath: devices) {
auto mixerDevice = devicesDir.absoluteFilePath(devicePath);
auto dspDevice = QString(mixerDevice).replace("mixer", "dsp");
if (!QFile::exists(mixerDevice)
|| !QFile::exists(dspDevice))
continue;
QString description;
QFile mixerFile(mixerDevice);
if (!mixerFile.open(QIODevice::ReadWrite))
continue;
mixer_info mixerInfo;
if (ioctl(mixerFile.handle(), SOUND_MIXER_INFO, &mixerInfo) < 0) {
mixerFile.close();
continue;
}
mixerFile.close();
description = QString("%1, %2").arg(mixerInfo.id).arg(mixerInfo.name);
auto input = dspDevice + ":Input";
int fragmentSize = 0;
auto caps = this->deviceCaps(input, &fragmentSize);
if (!caps) {
fragmentSize = this->m_fragmentSizeMap.value(input);
caps = this->m_pinCapsMap.value(input);
}
if (caps) {
inputs << input;
pinDescriptionMap[input] = description;
fragmentSizeMap[input] = fragmentSize;
pinCapsMap[input] = caps;
}
auto output = dspDevice + ":Output";
caps = this->deviceCaps(output, &fragmentSize);
if (!caps) {
fragmentSize = this->m_fragmentSizeMap.value(output);
caps = this->m_pinCapsMap.value(output);
}
if (caps) {
outputs << output;
pinDescriptionMap[output] = description;
fragmentSizeMap[output] = fragmentSize;
pinCapsMap[output] = caps;
}
}
if (this->m_pinCapsMap != pinCapsMap)
this->m_pinCapsMap = pinCapsMap;
if (this->m_pinDescriptionMap != pinDescriptionMap)
this->m_pinDescriptionMap = pinDescriptionMap;
if (this->m_fragmentSizeMap != fragmentSizeMap)
this->m_fragmentSizeMap = fragmentSizeMap;
if (this->m_sources != inputs) {
this->m_sources = inputs;
emit this->inputsChanged(inputs);
}
if (this->m_sinks != outputs) {
this->m_sinks = outputs;
emit this->outputsChanged(outputs);
}
QString defaultOutput = outputs.isEmpty()? "": outputs.first();
QString defaultInput = inputs.isEmpty()? "": inputs.first();
if (this->m_defaultSource != defaultInput) {
this->m_defaultSource = defaultInput;
emit this->defaultInputChanged(defaultInput);
}
if (this->m_defaultSink != defaultOutput) {
this->m_defaultSink = defaultOutput;
emit this->defaultOutputChanged(defaultOutput);
}
}
