null-terminated array of arguments
a parse context allocated with gst_parse_context_new(), or null
parsing options, or #GST_PARSE_FLAG_NONE
a new element on success; on failure, either null or a partially-constructed bin or element will be returned and error will be set (unless you passed #GST_PARSE_FLAG_FATAL_ERRORS in flags, then null will always be returned on failure)
Create a new element based on command line syntax.
errorwill contain an error message if an erroneous pipeline is specified. An error does not mean that the pipeline could not be constructed.