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require 'gst'
def usage
puts "Usage: #{__FILE__} mp3-file"
exit
end
def main
usage if ARGV.length != 1
file = ARGV[0]
# Create a pipeline to hold the elements
pipeline = Gst::Pipeline.new("my_pipeline")
# Create a disk reader
filesrc = Gst::ElementFactory.make("filesrc", "my_disk_source")
filesrc.location = file
# Now it's time to get the MP3 decoder
decoder = Gst::ElementFactory.make("mad", "my_decoder")
# And an audio sink
audiosink = Gst::ElementFactory.make("osssink", "my_audio_player")
# Add objects to the main pipeline
pipeline.add(filesrc, decoder, audiosink)
# Link disk source => decoder => audio player
filesrc >> decoder >> audiosink
# Start playing
puts "Playing #{file}..."
pipeline.play
begin
# Wait until the file is played
while pipeline.iterate do end
rescue Interrupt
ensure
# Stop the pipeline
pipeline.stop
end
end
Gst.init
main
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