mirror of https://github.com/mpv-player/mpv
135 lines
4.0 KiB
Lua
135 lines
4.0 KiB
Lua
-- This script automatically loads playlist entries before and after the
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-- the currently played file. It does so by scanning the directory a file is
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-- located in when starting playback. It sorts the directory entries
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-- alphabetically, and adds entries before and after the current file to
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-- the internal playlist. (It stops if the it would add an already existing
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-- playlist entry at the same position - this makes it "stable".)
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-- Add at most 5000 * 2 files when starting a file (before + after).
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MAXENTRIES = 5000
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function Set (t)
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local set = {}
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for _, v in pairs(t) do set[v] = true end
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return set
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end
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EXTENSIONS = Set {
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'mkv', 'avi', 'mp4', 'ogv', 'webm', 'rmvb', 'flv', 'wmv', 'mpeg', 'mpg', 'm4v', '3gp',
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'mp3', 'wav', 'ogv', 'flac', 'm4a', 'wma',
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}
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mputils = require 'mp.utils'
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function add_files_at(index, files)
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index = index - 1
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local oldcount = mp.get_property_number("playlist-count", 1)
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for i = 1, #files do
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mp.commandv("loadfile", files[i], "append")
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mp.commandv("playlist-move", oldcount + i - 1, index + i - 1)
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end
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end
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function get_extension(path)
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match = string.match(path, "%.([^%.]+)$" )
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if match == nil then
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return "nomatch"
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else
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return match
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end
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end
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table.filter = function(t, iter)
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for i = #t, 1, -1 do
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if not iter(t[i]) then
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table.remove(t, i)
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end
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end
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end
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function find_and_add_entries()
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local path = mp.get_property("path", "")
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local dir, filename = mputils.split_path(path)
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if #dir == 0 then
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return
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end
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local pl_count = mp.get_property_number("playlist-count", 1)
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if (pl_count > 1 and autoload == nil) or
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(pl_count == 1 and EXTENSIONS[string.lower(get_extension(filename))] == nil) then
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return
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else
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autoload = true
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end
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local files = mputils.readdir(dir, "files")
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if files == nil then
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return
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end
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table.filter(files, function (v, k)
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local ext = get_extension(v)
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if ext == nil then
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return false
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end
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return EXTENSIONS[string.lower(ext)]
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end)
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table.sort(files, function (a, b)
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local len = string.len(a) - string.len(b)
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if len ~= 0 then -- case for ordering filename ending with such as X.Y.Z
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local ext = string.len(get_extension(a)) + 1
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return string.sub(a, 1, -ext) < string.sub(b, 1, -ext)
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end
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return string.lower(a) < string.lower(b)
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end)
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if dir == "." then
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dir = ""
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end
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local pl = mp.get_property_native("playlist", {})
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local pl_current = mp.get_property_number("playlist-pos", 0) + 1
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-- Find the current pl entry (dir+"/"+filename) in the sorted dir list
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local current
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for i = 1, #files do
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if files[i] == filename then
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current = i
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break
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end
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end
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if current == nil then
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return
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end
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local append = {[-1] = {}, [1] = {}}
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for direction = -1, 1, 2 do -- 2 iterations, with direction = -1 and +1
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for i = 1, MAXENTRIES do
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local file = files[current + i * direction]
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local pl_e = pl[pl_current + i * direction]
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if file == nil or file[1] == "." then
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break
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end
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local filepath = dir .. file
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if pl_e then
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-- If there's a playlist entry, and it's the same file, stop.
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if pl_e.filename == filepath then
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break
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end
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end
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if direction == -1 then
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if pl_current == 1 then -- never add additional entries in the middle
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mp.msg.info("Prepending " .. file)
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table.insert(append[-1], 1, filepath)
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end
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else
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mp.msg.info("Adding " .. file)
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table.insert(append[1], filepath)
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end
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end
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end
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add_files_at(pl_current + 1, append[1])
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add_files_at(pl_current, append[-1])
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end
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mp.register_event("start-file", find_and_add_entries)
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