[linux-audio-announce] [ANN] GStreamer graphical pipeline editor released
wingo at pobox.com
Sun Oct 6 19:13:31 EDT 2002
GStreamer Pipeline Editor "Thanks for all the fish" 0.2.0 released
A first release of gst-editor, the GStreamer graphical pipeline
editor, is now available for public consumption! This tool allows
easy, graphical construction, inspection, and operation of media
processing pipelines. It can be used as a rapid prototyping tool as
well as a method to learn more about GStreamer. More information
about gst-editor is available on the project's home page.
Work on gst-editor was originally started in 2000 by Erik Walthinsen,
but was left unfinished and unmaintained for a year or two.
Development was picked up in mid-2002 by Andy Wingo, resulting in a
port to Gnome 2, adaptation to the current GStreamer API, and general
UI improvements and modularization. While much progress has been made
in the area of stabilization, crashes still occur from time to time.
Reproduceable bugs should be reported to Gnome bugzilla.
To rehash, for the impatient: THIS CODE IS VERY ALPHA.
* Thomas Vander Stichele took this shot while designing the
pipeline topology for a radio station mixing project:
"It shows two decoding threads that read files from disk,
connected to an adder, which does threaded output (in the
actual app, osssink is replaced again by tee, which sends
data to various output methods).
"After some experimentation, this seemed to be the ideal
pipeline setup, which I was able to verify by setting the
whole pipeline to play (using the buttons at the bottom), then
only pausing the adder (as shown in the screenshot - see the
adder being in pause and everything else in play). Pressing
pause here kept osssink playing for a little bit more until
the queue is empty. In the app, this gives me the time to
disconnect an input pipe, or connect a new one, with the adder
being paused, so as to have seamless playback."
* Andy made this shot while playing around with LADSPA
plugins. Note the automatically generated controls for element
properties, as well as the quick launch palette showing all
gst-editor requires GStreamer 0.4.1. It could probably work with
0.4.0, but that is untested.
You can find the source release of gst-player in tar.gz format.
RPM packages will be available from our apt for rpm repository, and
Debian packages should be coming soon to an experimental near you.
Andy is heading off to teach physics in rural Namibia for two years.
Needless to say, he won't be doing much development on the editor.
Patches should be submitted to the gstreamer-devel mailing list.
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