API: Add URI query type. This is useful to query the URI of a sink/source element...

API: Add URI query type. This is useful to query the URI of a sink/source element and can be used by demuxers that ne...

Original commit message from CVS:
* docs/gst/gstreamer-sections.txt:
* gst/gstquark.c:
* gst/gstquark.h:
* gst/gstquery.c: (gst_query_new_uri), (gst_query_set_uri),
(gst_query_parse_uri):
* gst/gstquery.h:
API: Add URI query type. This is useful to query the URI
of a sink/source element and can be used by demuxers that
need to get data from other files.
This query should go upstream by default.
Fixes bug #562949.
* plugins/elements/gstfdsink.c: (gst_fd_sink_query):
* plugins/elements/gstfdsrc.c: (gst_fd_src_class_init),
(gst_fd_src_query):
* plugins/elements/gstfilesink.c: (gst_file_sink_query):
* plugins/elements/gstfilesrc.c: (gst_file_src_class_init),
(gst_file_src_query):
Implement URI query.