VLC使用Lua编写脚本：跳转到文件中的特定时间？

VLC Lua playlist modules should define two functions:
   * probe(): returns true if we want to handle the playlist in this script
   * parse(): read the incoming data and return playlist item(s)
        Playlist items use the same format as that expected in the
        playlist.add() function (see general lua/README.txt)

如果你遵循playlist.add()的描述，它说这些项目有一个很大的可以提供的字段列表。有很多选择(.name，.title，.artist等)，但唯一需要的一个似乎是.path …这是“项目的完整路径/ URL”。

没有明确提到在哪里寻找，但您可以选择提供的参数之一是.options，被称为“VLC选项列表”，以全屏为例，如果平行到全屏幕工作，可以其他命令行选项如 – 启动时间和停止时间工作？

在我的系统上，他们做，这里是脚本！

-- randomseek.lua
--
-- A compiled version of this file (.luac) should be put into the proper VLC
-- playlist parsers directory for your system type.  See:
--
--   http://wiki.videolan.org/Documentation:Play_HowTo/Building_Lua_Playlist_Scripts
--
-- The file format is extremely simple and is merely alternating lines of
-- filenames and durations,such as if you had a file "example.randomseek"
-- it might contain:
--
--     foo.mp4
--     3:04
--     bar.mov
--     10:20
--
-- It simply will seek to a random location in the file and play a random
-- amount of the remaining time in the clip.

function probe()
    -- seed the random number since other VLC lua plugins don't seem to
    math.randomseed(os.time())

    -- tell VLC we will handle anything ending in ".randomseek"
    return string.match(vlc.path,".randomseek$")
end

function parse()
    -- VLC expects us to return a list of items,each item itself a list
    -- of properties
    playlist = {}

    -- I'll assume a well formed input file but obviously you should do
    -- error checking if writing something real
    while true do
       playlist_item = {}

       line = vlc.readline()
       if line == nil then
           break --error handling goes here
       end

       playlist_item.path = line

       line = vlc.readline()
       if line == nil then
           break --error handling goes here
       end

       for _min,_sec in string.gmatch( line,"(%d*):(%d*)" )
           do
               duration = 60 * _min + _sec
           end

       -- math.random with integer argument returns an integer between
       -- one and the number passed in inclusive,VLC uses zero based times
       start_time = math.random(duration) - 1
       stop_time = math.random(start_time,duration - 1)

       -- give the viewer a hint of how long the clip will take
       playlist_item.duration = stop_time - start_time

       -- a playlist item has another list inside of it of options
       playlist_item.options = {}
       table.insert(playlist_item.options,"start-time="..tostring(start_time))
       table.insert(playlist_item.options,"stop-time="..tostring(stop_time))
       table.insert(playlist_item.options,"fullscreen")

       -- add the item to the playlist
       table.insert( playlist,playlist_item )
    end

    return playlist
end