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|
video.frame.rate.set(24)
a = sine(duration=20., 440.)
a =
metadata.map(
insert_missing=true,
update=false,
(fun (_) -> [("title", "a")]),
a
)
b = sine(duration=20., 880.)
b =
metadata.map(
insert_missing=true,
update=false,
(fun (_) -> [("title", "b")]),
b
)
s = sequence([a, b])
s = crossfade(s)
dup_a = ref(0)
dup_b = ref(0)
def check_duplicate(m) =
if m["title"] == "a" then dup_a := dup_a() + 1 end
if m["title"] == "b" then dup_b := dup_b() + 1 end
end
s.on_metadata(synchronous=true, check_duplicate)
clock.assign_new(sync="none", [s])
def on_stop() =
if dup_a() == 1 and dup_b() == 1 then test.pass() else () end
end
o = output.dummy(fallible=true, s)
o.on_stop(synchronous=true, on_stop)
|
