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script_name=mp.get_script_name():gsub("lua/","",1)
function print_state(params)
if params then
mp.osd_message(script_name..':\n'
.."method = "..params['method'].."\n"
.."target = "..params['target'])
else
mp.osd_message(script_name..':\noff')
end
end
function get_index_of_drc(afs)
for i,af in pairs(afs) do
if af['label']==script_name then
return i
end
end
end
function append_drc(afs)
afs[#afs+1]={
name="drc",
label=script_name,
params={
method="1",
target="0.25"
}
}
print_state(afs[#afs]['params'])
end
function modify_or_create_af(fun)
afs=mp.get_property_native('af')
i=get_index_of_drc(afs)
if not i then
append_drc(afs)
else
fun(afs,i)
end
mp.set_property_native('af',afs)
end
function drc_toggle_method_handler()
modify_or_create_af(
function (afs,i)
new_method=(afs[i]['params']['method']+1)%3
if new_method==0 then
table.remove(afs,i)
print_state(nil)
else
afs[i]['params']['method']=tostring((afs[i]['params']['method'])%2+1)
print_state(afs[i]['params'])
end
end
)
end
function drc_scale_target(factor)
modify_or_create_af(
function (afs)
afs[i]['params']['target']=tostring(afs[i]['params']['target']*factor)
print_state(afs[i]['params'])
end
)
end
function drc_louder_handler()
drc_scale_target(2.0)
end
function drc_quieter_handler()
drc_scale_target(0.5)
end
-- toggle between off, method 1 and method 2
mp.add_key_binding("\\","drc_toggle_method",drc_toggle_method_handler)
-- increase or decrease target volume
mp.add_key_binding("ctrl+9","drc_quieter",drc_quieter_handler)
mp.add_key_binding("ctrl+0","drc_louder",drc_louder_handler)
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