def EventServerClients(rhost, rport,
whiteboardBackplane="WHITEBOARD",
audioBackplane="AUDIO"):
# plug a TCPClient into the backplane
loadingmsg = "Fetching sketch from server..."
return Graphline(
# initial messages sent to the server, and the local whiteboard
GETIMG = Pipeline(
OneShot(msg=[["GETIMG"]]),
tokenlists_to_lines()
),
BLACKOUT = OneShot(msg="CLEAR 0 0 0\r\n"
"WRITE 100 100 24 255 255 255 "+loadingmsg+"\r\n"),
NETWORK = TCPClient(host=rhost,port=rport),
APPCOMMS = clientconnector(whiteboardBackplane=whiteboardBackplane,
audioBackplane=audioBackplane),
linkages = {
("GETIMG", "outbox") : ("NETWORK", "inbox"), # Single shot out
("APPCOMMS", "outbox") : ("NETWORK", "inbox"), # Continuous out
("BLACKOUT", "outbox") : ("APPCOMMS", "inbox"), # Single shot in
("NETWORK", "outbox") : ("APPCOMMS", "inbox"), # Continuous in
}
)
def EventServerClients(rhost, rport,
whiteboardBackplane="WHITEBOARD",
audioBackplane="AUDIO"):
# plug a TCPClient into the backplane
loadingmsg = "Fetching sketch from server..."
return Graphline(
# initial messages sent to the server, and the local whiteboard
GETIMG = Pipeline(
OneShot(msg=[["GETIMG"]]),
tokenlists_to_lines()
),
BLACKOUT = OneShot(msg="CLEAR 0 0 0\r\n"
"WRITE 100 100 24 255 255 255 "+loadingmsg+"\r\n"),
NETWORK = TCPClient(host=rhost,port=rport),
APPCOMMS = clientconnector(whiteboardBackplane=whiteboardBackplane,
audioBackplane=audioBackplane),
linkages = {
("GETIMG", "outbox") : ("NETWORK", "inbox"), # Single shot out
("APPCOMMS", "outbox") : ("NETWORK", "inbox"), # Continuous out
("BLACKOUT", "outbox") : ("APPCOMMS", "inbox"), # Single shot in
("NETWORK", "outbox") : ("APPCOMMS", "inbox"), # Continuous in
}
)
def clientconnector(whiteboardBackplane="WHITEBOARD", audioBackplane="AUDIO", port=1500):
return Pipeline(
chunks_to_lines(),
lines_to_tokenlists(),
Graphline(
ROUTER=Router(((lambda T: T[0] == "SOUND"), "audio"), ((lambda T: T[0] != "SOUND"), "whiteboard")),
WHITEBOARD=FilteringPubsubBackplane(whiteboardBackplane),
AUDIO=Pipeline(
SimpleDetupler(1), # remove 'SOUND' tag
SpeexDecode(3),
FilteringPubsubBackplane(audioBackplane, dontRemoveTag=True),
RawAudioMixer(),
SpeexEncode(3),
Entuple(prefix=["SOUND"], postfix=[]),
),
linkages={
# incoming messages go to a router
("", "inbox"): ("ROUTER", "inbox"),
# distribute messages to appropriate destinations
("ROUTER", "audio"): ("AUDIO", "inbox"),
("ROUTER", "whiteboard"): ("WHITEBOARD", "inbox"),
# aggregate all output
("AUDIO", "outbox"): ("", "outbox"),
("WHITEBOARD", "outbox"): ("", "outbox"),
# shutdown routing, not sure if this will actually work, but hey!
("", "control"): ("ROUTER", "control"),
("ROUTER", "signal"): ("AUDIO", "control"),
("AUDIO", "signal"): ("WHITEBOARD", "control"),
("WHITEBOARD", "signal"): ("", "signal"),
},
),
tokenlists_to_lines(),
)
def clientconnector(whiteboardBackplane="WHITEBOARD", audioBackplane="AUDIO", port=1500):
return Pipeline(
chunks_to_lines(),
lines_to_tokenlists(),
Graphline(
ROUTER = Router( ((lambda T : T[0]=="SOUND"), "audio"),
((lambda T : T[0]!="SOUND"), "whiteboard"),
),
WHITEBOARD = FilteringPubsubBackplane(whiteboardBackplane),
AUDIO = Pipeline(
SimpleDetupler(1), # remove 'SOUND' tag
SpeexDecode(3),
FilteringPubsubBackplane(audioBackplane, dontRemoveTag=True),
RawAudioMixer(),
SpeexEncode(3),
Entuple(prefix=["SOUND"],postfix=[]),
),
linkages = {
# incoming messages go to a router
("", "inbox") : ("ROUTER", "inbox"),
# distribute messages to appropriate destinations
("ROUTER", "audio") : ("AUDIO", "inbox"),
("ROUTER", "whiteboard") : ("WHITEBOARD", "inbox"),
# aggregate all output
("AUDIO", "outbox") : ("", "outbox"),
("WHITEBOARD", "outbox") : ("", "outbox"),
# shutdown routing, not sure if this will actually work, but hey!
("", "control") : ("ROUTER", "control"),
("ROUTER", "signal") : ("AUDIO", "control"),
("AUDIO", "signal") : ("WHITEBOARD", "control"),
("WHITEBOARD", "signal") : ("", "signal")
},
),
tokenlists_to_lines(),
)
if __name__=="__main__":
from Kamaelia.Internet.TCPClient import TCPClient
from Kamaelia.File.Reading import PromptedFileReader
from Kamaelia.File.Writing import SimpleFileWriter
from Kamaelia.Apps.Whiteboard.SingleShot import OneShot
try:
if "--help" in sys.argv:
sys.stderr.write("Usage:\n ./WhiteboardRecorder.py filename host port\n\n")
sys.exit(0)
filename = sys.argv[1]
rhost = sys.argv[2]
rport = int(sys.argv[3])
except:
sys.stderr.write("Usage:\n ./WhiteboardRecorder.py filename host port\n\n")
sys.exit(1)
print "Recording..."
Pipeline(
OneShot(msg=[["GETIMG"]]),
tokenlists_to_lines(),
TCPClient(host=rhost, port=rport),
chunks_to_lines(),
Timestamp(),
IntersperseNewlines(),
SimpleFileWriter(filename),
).run()
