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| |
| #include <QtMultimedia/private/qtmultimediaglobal_p.h> |
| #include "qgstreameraudioinputselector_p.h" |
| |
| #include <QtCore/QDir> |
| #include <QtCore/QDebug> |
| |
| #include <gst/gst.h> |
| |
| #if QT_CONFIG(alsa) |
| #include <alsa/asoundlib.h> |
| #endif |
| |
| QGstreamerAudioInputSelector::QGstreamerAudioInputSelector(QObject *parent) |
| :QAudioInputSelectorControl(parent) |
| { |
| update(); |
| } |
| |
| QGstreamerAudioInputSelector::~QGstreamerAudioInputSelector() |
| { |
| } |
| |
| QList<QString> QGstreamerAudioInputSelector::availableInputs() const |
| { |
| return m_names; |
| } |
| |
| QString QGstreamerAudioInputSelector::inputDescription(const QString& name) const |
| { |
| QString desc; |
| |
| for (int i = 0; i < m_names.size(); i++) { |
| if (m_names.at(i).compare(name) == 0) { |
| desc = m_descriptions.at(i); |
| break; |
| } |
| } |
| return desc; |
| } |
| |
| QString QGstreamerAudioInputSelector::defaultInput() const |
| { |
| if (m_names.size() > 0) |
| return m_names.at(0); |
| |
| return QString(); |
| } |
| |
| QString QGstreamerAudioInputSelector::activeInput() const |
| { |
| return m_audioInput; |
| } |
| |
| void QGstreamerAudioInputSelector::setActiveInput(const QString& name) |
| { |
| if (m_audioInput.compare(name) != 0) { |
| m_audioInput = name; |
| emit activeInputChanged(name); |
| } |
| } |
| |
| void QGstreamerAudioInputSelector::update() |
| { |
| m_names.clear(); |
| m_descriptions.clear(); |
| |
| //use autoaudiosrc as the first default device |
| m_names.append(QLatin1String("default:")); |
| m_descriptions.append(tr("System default device")); |
| |
| updatePulseDevices(); |
| updateAlsaDevices(); |
| updateOssDevices(); |
| if (m_names.size() > 0) |
| m_audioInput = m_names.at(0); |
| } |
| |
| void QGstreamerAudioInputSelector::updateAlsaDevices() |
| { |
| #if QT_CONFIG(alsa) |
| void **hints, **n; |
| if (snd_device_name_hint(-1, "pcm", &hints) < 0) { |
| qWarning()<<"no alsa devices available"; |
| return; |
| } |
| n = hints; |
| |
| while (*n != nullptr) { |
| char *name = snd_device_name_get_hint(*n, "NAME"); |
| char *descr = snd_device_name_get_hint(*n, "DESC"); |
| char *io = snd_device_name_get_hint(*n, "IOID"); |
| |
| if ((name != nullptr) && (descr != nullptr)) { |
| if (io == nullptr || qstrcmp(io, "Input") == 0) { |
| m_names.append(QLatin1String("alsa:")+QString::fromUtf8(name)); |
| m_descriptions.append(QString::fromUtf8(descr)); |
| } |
| } |
| |
| free(name); |
| free(descr); |
| free(io); |
| n++; |
| } |
| snd_device_name_free_hint(hints); |
| #endif |
| } |
| |
| void QGstreamerAudioInputSelector::updateOssDevices() |
| { |
| QDir devDir(QStringLiteral("/dev")); |
| devDir.setFilter(QDir::System); |
| const QFileInfoList entries = devDir.entryInfoList(QStringList() << QLatin1String("dsp*")); |
| for (const QFileInfo& entryInfo : entries) { |
| m_names.append(QLatin1String("oss:")+entryInfo.filePath()); |
| m_descriptions.append(QString::fromLatin1("OSS device %1").arg(entryInfo.fileName())); |
| } |
| } |
| |
| void QGstreamerAudioInputSelector::updatePulseDevices() |
| { |
| GstElementFactory *factory = gst_element_factory_find("pulsesrc"); |
| if (factory) { |
| m_names.append(QLatin1String("pulseaudio:")); |
| m_descriptions.append(QLatin1String("PulseAudio device.")); |
| gst_object_unref(GST_OBJECT(factory)); |
| } |
| } |