Register a new gstreamer.Meta implementation.
The same info can be retrieved later with Meta.getInfo by using impl as the key.
the type of the gstreamer.Meta API
the name of the gstreamer.Meta implementation
the size of the gstreamer.Meta structure
a GstMetaInitFunction
a GstMetaFreeFunction
a GstMetaTransformFunction
a GstMetaInfo that can be used to access metadata.
Register a new gstreamer.Meta implementation.
The same info can be retrieved later with Meta.getInfo by using impl as the key.