GStreamer and GLib::MainLoop


#1

Hi,

I am building a system for audio processing. Web UI is based on Ruby on
Rails, so I am considering using Ruby/GStreamer to build audio
processing
part - it will greatly integrate with rest of the software.

Unfortunately, documentation at project’s website seems to be outdated.

The very first problem that I’ve encountered is that Gst::Pipeline has
no
iterate method, as it is used at
http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gst-helloworld Even
documentation in the hiki doesn’t show any method like that.

I tried to switch to GLib’s mainloop, by adding following code at the
end
of sample mentioned above:

(…)

add objects to the main pipeline

pipeline.add(filesrc, decoder, audiosink)

link elements

filesrc >> decoder >> audiosink

start playing

pipeline.play

mainloop = GLib::MainLoop.new
mainloop.run

but unfortunately, GStreamer plays nothing.

So what is the correct way to play simple stream? I don’t want to use
Gtk.main.

Thanks in advance.

PS. If anyone would give me access to the hiki I can update
Ruby/GStreamer
documentation during my work.

m.


#2

Hi,

2008/10/19 Marcin L. removed_email_address@domain.invalid:

Gtk.main.
Did you see the example?
http://ruby-gnome2.svn.sourceforge.net/viewvc/ruby-gnome2/ruby-gnome2/trunk/gstreamer/sample/audio-player.rb?view=markup

PS. If anyone would give me access to the hiki I can update Ruby/GStreamer
documentation during my work.

Great!
I’ll send you an account for the Hiki.

Thanks,

kou