1 --[[ This code is public domain (since it really isn't very interesting) ]]--
3 module("common",package.seeall)
5 -- Iterate over a table in the keys' alphabetical order
6 function pairs_sorted(t)
8 for k,_ in pairs(t) do table.insert(s,k) end
11 return function () i = i + 1; return s[i], t[s[i]] end
14 -- Return a function such as skip(foo)(a,b,c) = foo(b,c)
16 return function(discard,...) return foo(...) end
19 -- Return a function such as setarg(foo,a)(b,c) = foo(a,b,c)
20 function setarg(foo,a)
21 return function(...) return foo(a,...) end
26 local id = vlc.misc.action_id( arg )
28 vlc.var.set( vlc.object.libvlc(), "key-action", id )
35 -- Take a video snapshot
37 local vout = vlc.object.find(nil,"vout","anywhere")
38 if not vout then return end
39 vlc.var.set(vout,"video-snapshot",nil)
42 -- Naive (non recursive) table copy
43 function table_copy(t)
45 for i,v in pairs(t) do c[i]=v end
49 -- strip leading and trailing spaces
51 return string.gsub(str, "^%s*(.-)%s*$", "%1")
54 -- print a table (recursively)
55 function table_print(t,prefix)
56 local prefix = prefix or ""
57 for a,b in pairs_sorted(t) do
58 print(prefix..tostring(a),b)
59 if type(b)==type({}) then
60 table_print(b,prefix.."\t")
65 -- print the list of callbacks registered in lua
66 -- usefull for debug purposes
67 function print_callbacks()
69 table_print(vlc.callbacks)
72 -- convert a duration (in seconds) to a string
73 function durationtostring(duration)
74 return string.format("%02d:%02d:%02d",
75 math.floor(duration/3600),
76 math.floor(duration/60)%60,
77 math.floor(duration%60))
81 function realpath(path)
82 return string.gsub(string.gsub(string.gsub(string.gsub(path,"/%.%./[^/]+","/"),"/[^/]+/%.%./","/"),"/%./","/"),"//","/")
87 local input = vlc.object.input()
88 if string.sub(value,#value)=="%" then
89 vlc.var.set(input,"position",tonumber(string.sub(value,1,#value-1))/100.)
91 vlc.var.set(input,"time",tonumber(value))
95 function volume(value)
96 if type(value)=="string" and string.sub(value,1,1) == "+" or string.sub(value,1,1) == "-" then
97 vlc.volume.set(vlc.volume.get()+tonumber(value))
99 vlc.volume.set(tostring(value))