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|
# A simple OGG/Vorbis player which uses GStreamer's XML serialization feature
# to save and load a Gst::Pipeline.
require 'gst'
Gst.init
XML_FILE = "/tmp/ogg_pipeline"
unless ARGV.length == 1
puts "Usage: #{__FILE__} [ogg_file]"
exit 1
end
def build_pipeline(file)
src = Gst::ElementFactory.make("filesrc")
dec = Gst::ElementFactory.make("vorbisfile")
sink = Gst::ElementFactory.make("osssink")
src.location = file
src >> dec >> sink
pipe = Gst::Pipeline.new("our_ogg_pipeline")
pipe.add(src, dec, sink)
pipe
end
def write_pipeline(pipe, file)
Gst::XML.write_file(pipe, file)
end
def read_pipeline(file)
xml = Gst::XML.new
xml.parse_file(file)
xml.get_element("our_ogg_pipeline")
end
def play_pipeline(pipe)
pipe.play
begin
while pipe.iterate do end
rescue Interrupt
ensure
pipe.stop
end
end
pipe = build_pipeline ARGV.first
write_pipeline pipe, XML_FILE
pipe = read_pipeline XML_FILE
play_pipeline pipe
|
