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gst-playd-client.rb
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gst-playd-client.rb
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require 'zmq'
class GstPlayDaemon
def initialize(address)
ctx = ZMQ::Context.new(1)
@rep = ctx.socket(ZMQ::REQ)
@rep.connect address
@rep.send "PUBSUB "
pubsub_addr = parse_response(@rep.recv)
puts "PubSub addr is #{pubsub_addr}"
@pubsub = ctx.socket(ZMQ::SUB)
@pubsub.connect pubsub_addr
end
def ping
msg = "GstPlayDaemon"
@rep.send "PING #{msg}"
return @rep.recv().end_with?(msg)
end
def close
@pubsub.close; @pubsub = nil
@rep.close; @rep = nil
end
def tags(uri)
@rep.send "TAGS #{uri}"
response_to_tag_dict(@rep.recv)
end
def play(uri)
@rep.send "PLAY #{uri}"
return parse_response(@rep.recv).gsub(/.*: /, '')
end
def stop(id)
@rep.send "STOP #{id}"
parse_response(@rep.recv); nil
end
private
def parse_response(msg)
re = /^([A-Z]+)[ ]?(.*)$/
m = re.match msg
throw m[2] unless m[1] == "OK"
m[2]
end
def response_to_tag_dict(msg)
parse_response msg
re = /^(.*)_([0-9]+)$/ ## someparam_0
msg.lines.drop(1).each_slice(2).inject({}) do |acc,x|
key,value = x
m = re.match key
acc[m[1]] ||= []
acc[m[1]] << value.chomp
acc
end
end
end