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39
40#include <QtCore/qstring.h>
41#include <QtCore/qdebug.h>
42#include <QtCore/QDir>
43#include <QtCore/QDebug>
44
45#include "qgstreamercaptureserviceplugin.h"
46
47//#define QT_SUPPORTEDMIMETYPES_DEBUG
48
49#include "qgstreamercaptureservice.h"
50#include <private/qgstutils_p.h>
51
52QMediaService* QGstreamerCaptureServicePlugin::create(const QString &key)
53{
54 QGstUtils::initializeGst();
55
56 if (key == QLatin1String(Q_MEDIASERVICE_AUDIOSOURCE))
57 return new QGstreamerCaptureService(key);
58
59#if defined(USE_GSTREAMER_CAMERA)
60 if (key == QLatin1String(Q_MEDIASERVICE_CAMERA))
61 return new QGstreamerCaptureService(key);
62#endif
63
64 qWarning() << "Gstreamer capture service plugin: unsupported key:" << key;
65 return 0;
66}
67
68void QGstreamerCaptureServicePlugin::release(QMediaService *service)
69{
70 delete service;
71}
72
73#if defined(USE_GSTREAMER_CAMERA)
74QMediaServiceProviderHint::Features QGstreamerCaptureServicePlugin::supportedFeatures(
75 const QByteArray &service) const
76{
77 if (service == Q_MEDIASERVICE_CAMERA)
78 return QMediaServiceProviderHint::VideoSurface;
79
80 return QMediaServiceProviderHint::Features();
81}
82
83QByteArray QGstreamerCaptureServicePlugin::defaultDevice(const QByteArray &service) const
84{
85 return service == Q_MEDIASERVICE_CAMERA
86 ? QGstUtils::enumerateCameras().value(0).name.toUtf8()
87 : QByteArray();
88}
89
90QList<QByteArray> QGstreamerCaptureServicePlugin::devices(const QByteArray &service) const
91{
92 return service == Q_MEDIASERVICE_CAMERA ? QGstUtils::cameraDevices() : QList<QByteArray>();
93}
94
95QString QGstreamerCaptureServicePlugin::deviceDescription(const QByteArray &service, const QByteArray &device)
96{
97 return service == Q_MEDIASERVICE_CAMERA ? QGstUtils::cameraDescription(device) : QString();
98}
99
100QVariant QGstreamerCaptureServicePlugin::deviceProperty(const QByteArray &service, const QByteArray &device, const QByteArray &property)
101{
102 Q_UNUSED(service);
103 Q_UNUSED(device);
104 Q_UNUSED(property);
105 return QVariant();
106}
107
108#endif
109
110QMultimedia::SupportEstimate QGstreamerCaptureServicePlugin::hasSupport(const QString &mimeType,
111 const QStringList& codecs) const
112{
113 if (m_supportedMimeTypeSet.isEmpty())
114 updateSupportedMimeTypes();
115
116 return QGstUtils::hasSupport(mimeType, codecs, supportedMimeTypeSet: m_supportedMimeTypeSet);
117}
118
119
120static bool isEncoderOrMuxer(GstElementFactory *factory)
121{
122#if GST_CHECK_VERSION(0, 10, 31)
123 return gst_element_factory_list_is_type(factory, GST_ELEMENT_FACTORY_TYPE_MUXER)
124 || gst_element_factory_list_is_type(factory, GST_ELEMENT_FACTORY_TYPE_ENCODER);
125#else
126 return (factory
127 && (qstrcmp(factory->details.klass, "Codec/Encoder/Audio") == 0
128 || qstrcmp(factory->details.klass, "Codec/Encoder/Video") == 0
129 || qstrcmp(factory->details.klass, "Codec/Muxer") == 0 ));
130#endif
131}
132
133void QGstreamerCaptureServicePlugin::updateSupportedMimeTypes() const
134{
135 m_supportedMimeTypeSet = QGstUtils::supportedMimeTypes(isValidFactory: isEncoderOrMuxer);
136}
137
138QStringList QGstreamerCaptureServicePlugin::supportedMimeTypes() const
139{
140 return QStringList();
141}
142
143

source code of qtmultimedia/src/plugins/gstreamer/mediacapture/qgstreamercaptureserviceplugin.cpp