qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/gstreamer/gstreamer.json

{
    "Keys": ["gstreamer"],
    "Services": ["org.qt-project.qt.mediaplayer", "org.qt-project.qt.audiosource", "org.qt-project.qt.camera", "org.qt-project.qt.audiodecode"]
}