1 files changed, 77 insertions, 0 deletions
diff --git a/share/scripts/_dump_latency.lua b/share/scripts/_dump_latency.lua
new file mode 100644
index 0000000000..9303e29508
--- /dev/null
+++ b/share/scripts/_dump_latency.lua
@@ -0,0 +1,77 @@
+ardour { ["type"] = "Snippet", name = "Dump Latency",
+	license     = "MIT",
+	author      = "Ardour Team",
+}
+
+function factory () return function ()
+	local all_procs = true
+	local show_ports = true
+
+	print (" -- Session --")
+	print ("Worst Output Latency:  ", Session:worst_output_latency ())
+	print ("Worst Input Latency:   ", Session:worst_input_latency ())
+	print ("Worst Track Latency:   ", Session:worst_route_latency ())
+	print ("Worst Latency Preroll: ", Session:worst_latency_preroll ())
+
+	print (" -- Routes --")
+	for t in Session:get_routes ():iter () do
+		print (string.format ("%-30s  signal-latency: %4d align: %4d play: %4d || in: %4d out: %4d",
+		t:name(),
+		t:signal_latency (), t:playback_latency (false), t:playback_latency (true),
+		t:input():latency(), t:output():latency()))
+		local i = 0
+		while true do
+			local proc = t:nth_processor (i)
+			if proc:isnil () then break end
+			if all_procs and not proc:to_send():isnil () then
+				print (string.format (" * %-27s  L: %4d  in: %4d  out: %4d capt: %4d play %4d  DLY-SRC: %4d DLY-DST: %4d",
+				string.sub (proc:name(), 0, 27) , proc:signal_latency(),
+				proc:input_latency(), proc:output_latency(),
+				proc:capture_offset(), proc:playback_offset(),
+				proc:to_send():get_delay_in(), proc:to_send():get_delay_out()
+				))
+			elseif all_procs or not proc:to_diskioprocessor():isnil () then
+				print (string.format (" * %-27s  L: %4d  in: %4d  out: %4d capt: %4d play %4d",
+				string.sub (proc:name(), 0, 27) , proc:signal_latency(),
+				proc:input_latency(), proc:output_latency(),
+				proc:capture_offset(), proc:playback_offset()
+				))
+			end
+			i = i + 1
+		end
+	end
+
+	if show_ports then
+		print (" -- Ports -- (latencies: port, priv, pub)")
+		local a = Session:engine()
+		_, t = a:get_ports (ARDOUR.DataType("audio"), ARDOUR.PortList())
+		-- table 't' holds argument references. t[2] is the PortList
+		for p in t[2]:iter() do
+			local lp = p:get_connected_latency_range (ARDOUR.LatencyRange(), true)
+			local lc = p:get_connected_latency_range (ARDOUR.LatencyRange(), false)
+			local ppl = p:private_latency_range (true)
+			local pcl = p:private_latency_range (false)
+			local bpl = p:public_latency_range (true)
+			local bcl = p:public_latency_range (false)
+			print (string.format ("%-30s  play: (%4d, %4d) (%4d, %4d) (%4d, %4d)  capt: (%4d, %4d) (%4d, %4d) (%4d, %4d)",
+			p:name(),
+			lp[1].min, lp[1].max, ppl.min, ppl.max, bpl.min, bpl.max,
+			lc[1].min, lc[1].max, pcl.min, pcl.max, bcl.min, bcl.max))
+		end
+		_, t = a:get_ports (ARDOUR.DataType("midi"), ARDOUR.PortList())
+		-- table 't' holds argument references. t[2] is the PortList
+		for p in t[2]:iter() do
+			local lp = p:get_connected_latency_range (ARDOUR.LatencyRange(), true)
+			local lc = p:get_connected_latency_range (ARDOUR.LatencyRange(), false)
+			local ppl = p:private_latency_range (true)
+			local pcl = p:private_latency_range (false)
+			local bpl = p:public_latency_range (true)
+			local bcl = p:public_latency_range (false)
+			print (string.format ("%-30s  play: (%4d, %4d) (%4d, %4d) (%4d, %4d)  capt: (%4d, %4d) (%4d, %4d) (%4d, %4d)",
+			p:name(),
+			lp[1].min, lp[1].max, ppl.min, ppl.max, bpl.min, bpl.max,
+			lc[1].min, lc[1].max, pcl.min, pcl.max, bcl.min, bcl.max))
+		end
+	end
+	collectgarbage ()
+end end