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RedHat 9 (Linux i386) - man page for gst-xmllaunch (redhat section 1)

GStreamer(1)						      General Commands Manual						      GStreamer(1)

gst-xmllaunch - build and run a GStreamer pipeline from an XML serialization
gst-xmllaunch is a tool that is used to build and run a basic GStreamer pipeline, loading it from an XML description. You can produce the XML description using gst-launch(1) with the -o option or by calling gst_xml_write_file() in your own app. A simple commandline looks like: gst-xmllaunch my-pipeline.xml filesrc0.location=music.mp3 This sets the location property of the element named filesrc0 to the value "music.mp3". See gst-launch(1) for syntax on setting element names, and gst-inspect to see what properties various elements have. You can pass "-" as the XML-FILE to read from stdin. XML-FILE can be a URI as well, thanks to the wizardry of libxml. I'm not really sure what all is supported, it seems http works just fine though.
gst-xmllaunch accepts the following options: --help Print help synopsis and available FLAGS --silent Do not output status information --exclude=TYPE, -XTYPE Do not output status information of TYPE --output=FILE, -oFILE Save XML representation of pipeline to FILE and exit --gst-info-mask=FLAGS GStreamer info flags to set (list with --help) --gst-debug-mask=FLAGS GStreamer debugging flags to set (list with --help) --gst-mask=FLAGS GStreamer info and debugging flags to set (list with --help) --gst-plugin-spew GStreamer info flags to set Enable printout of errors while loading GStreamer plugins --gst-plugin-path=PATH Add directories separated with ':' to the plugin search path
gst-launch(1), gst-register(1), gst-inspect(1),
The GStreamer team at March 2001 GStreamer(1)