The gst_parse_launch line to use for constructing the pipeline in the default prepare vmethod.
The pipeline description should return a GstBin as the toplevel element which can be accomplished by enclosing the description with brackets '(' ')'.
The description should return a pipeline with payloaders named pay0, pay1, etc.. Each of the payloaders will result in a stream.
| this | |
| launch |
the launch description |