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authorGravatar Kevin Mitchell <kevmitch@gmail.com>2014-04-26 10:26:04 -0700
committerGravatar wm4 <wm4@nowhere>2014-04-27 15:34:53 +0200
commit7ef045555dd1c6f1fc368d9d18d014a579885d6e (patch)
treef70dd97cdb1f98a5dd8ebd0e9ad0cea342e2bf6d /TOOLS
parentae56b8d237be4cff44b3a92c5d2eeb44e3fda694 (diff)
TOOLS: add lua/drc-control
allows live insertion/deletion/adjustment of drc audio filter
Diffstat (limited to 'TOOLS')
-rw-r--r--TOOLS/lua/drc-control.lua80
1 files changed, 80 insertions, 0 deletions
diff --git a/TOOLS/lua/drc-control.lua b/TOOLS/lua/drc-control.lua
new file mode 100644
index 0000000000..32ba76eb86
--- /dev/null
+++ b/TOOLS/lua/drc-control.lua
@@ -0,0 +1,80 @@
+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)