null-terminated array of arguments. in[array zero-terminated=1]
a parse context allocated with gst_parse_context_new(), or NULL. [allow-none]
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). [transfer full]
GException on failure.
Create a new element based on command line syntax. error will contain an error message if an erroneous pipeline is specified. An error does not mean that the pipeline could not be constructed.