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playlist-view.lua
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playlist-view.lua
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--[[
mpv-gallery-view | https://github.com/occivink/mpv-gallery-view
This mpv script generates and displays an overview of the current playlist with thumbnails.
File placement: scripts/playlist-view.lua
Settings: script-opts/playlist_view.conf
Requires: script-modules/gallery-module.lua
Default keybinding: g script-binding playlist-view-toggle
]]
local utils = require 'mp.utils'
local msg = require 'mp.msg'
local options = require 'mp.options'
package.path = mp.command_native({ "expand-path", "~~/script-modules/?.lua;" }) .. package.path
require 'gallery'
ON_WINDOWS = (package.config:sub(1,1) ~= "/")
-- global variables
flags = {}
resume = {}
did_pause = false
hash_cache = {}
playlist_pos = 0
bindings = {}
bindings_repeat = {}
compute_geometry = function(ww, wh) end
ass_changed = false
ass = ""
geometry_changed = false
pending_selection = nil
thumb_dir = ""
gallery = gallery_new()
gallery.config.always_show_placeholders = true
gallery.config.accurate = false
opts = {
thumbs_dir = ON_WINDOWS and "%APPDATA%\\mpv\\gallery-thumbs-dir" or "~/.cache/thumbnails/mpv-gallery/",
generate_thumbnails_with_mpv = ON_WINDOWS,
mkdir_thumbs = true,
gallery_position = "{ (ww - gw) / 2, (wh - gh) / 2}",
gallery_size = "{ 9 * ww / 10, 9 * wh / 10 }",
min_spacing = "{ 15, 15 }",
thumbnail_size = "(ww * wh <= 1366 * 768) and {192, 108} or {288, 162}",
max_thumbnails = 64,
take_thumbnail_at = "20%",
load_file_on_toggle_off = false,
close_on_load_file = true,
pause_on_start = true,
resume_on_stop = "only-if-did-pause",
follow_playlist_position = false,
remember_time_position = true,
start_on_mpv_startup = false,
start_on_file_end = true,
show_text = true,
show_title = true,
strip_directory = true,
strip_extension = true,
text_size = 28,
background_color = "333333",
background_opacity = "33",
normal_border_color = "BBBBBB",
normal_border_size = 1,
selected_border_color = "E5E4E5",
selected_border_size = 6,
highlight_active = true,
active_border_color = "EBC5A7",
active_border_size = 4,
flagged_border_color = "96B58D",
flagged_border_size = 4,
placeholder_color = "222222",
command_on_open = "",
command_on_close = "",
flagged_file_path = "./mpv_gallery_flagged",
mouse_support = true,
UP = "UP",
DOWN = "DOWN",
LEFT = "LEFT",
RIGHT = "RIGHT",
PAGE_UP = "PGUP",
PAGE_DOWN = "PGDWN",
FIRST = "HOME",
LAST = "END",
RANDOM = "r",
ACCEPT = "ENTER",
CANCEL = "ESC",
REMOVE = "DEL",
FLAG = "SPACE",
}
function reload_config()
gallery.config.background_color = opts.background_color
gallery.config.background_opacity = opts.background_opacity
gallery.config.max_thumbnails = math.min(opts.max_thumbnails, 64)
gallery.config.placeholder_color = opts.placeholder_color
gallery.config.text_size = opts.text_size
gallery.config.generate_thumbnails_with_mpv = opts.generate_thumbnails_with_mpv
if ON_WINDOWS then
thumbs_dir = string.gsub(opts.thumbs_dir, "^%%APPDATA%%", os.getenv("APPDATA") or "%APPDATA%")
else
thumbs_dir = string.gsub(opts.thumbs_dir, "^~", os.getenv("HOME") or "~")
end
local res = utils.file_info(thumbs_dir)
if not res or not res.is_dir then
if opts.mkdir_thumbs then
local args = ON_WINDOWS and { "mkdir", thumbs_dir } or { "mkdir", "-p", thumbs_dir }
utils.subprocess({ args = args, playback_only = false })
else
msg.error(string.format("Thumbnail directory \"%s\" does not exist", thumbs_dir))
end
end
compute_geometry = get_geometry_function()
reload_bindings()
if gallery.active then
local ww, wh = mp.get_osd_size()
compute_geometry(ww, wh)
gallery:ass_refresh(true, true, true, true)
end
end
options.read_options(opts, mp.get_script_name(), reload_config)
local sha256
--[[
minified code below is a combination of:
-sha256 implementation from
http://lua-users.org/wiki/SecureHashAlgorithm
-lua implementation of bit32 (used as fallback on lua5.1) from
https://www.snpedia.com/extensions/Scribunto/engines/LuaCommon/lualib/bit32.lua
both are licensed under the MIT below:
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--]]
do local b,c,d,e,f;if bit32 then b,c,d,e,f=bit32.band,bit32.rrotate,bit32.bxor,bit32.rshift,bit32.bnot else f=function(g)g=math.floor(tonumber(g))%0x100000000;return(-g-1)%0x100000000 end;local h={[0]={[0]=0,0,0,0},[1]={[0]=0,1,0,1},[2]={[0]=0,0,2,2},[3]={[0]=0,1,2,3}}local i={[0]={[0]=0,1,2,3},[1]={[0]=1,0,3,2},[2]={[0]=2,3,0,1},[3]={[0]=3,2,1,0}}local function j(k,l,m,n,o)for p=1,m do l[p]=math.floor(tonumber(l[p]))%0x100000000 end;local q=1;local r=0;for s=0,31,2 do local t=n;for p=1,m do t=o[t][l[p]%4]l[p]=math.floor(l[p]/4)end;r=r+t*q;q=q*4 end;return r end;b=function(...)return j('band',{...},select('#',...),3,h)end;d=function(...)return j('bxor',{...},select('#',...),0,i)end;e=function(g,u)g=math.floor(tonumber(g))%0x100000000;u=math.floor(tonumber(u))u=math.min(math.max(-32,u),32)return math.floor(g/2^u)%0x100000000 end;c=function(g,u)g=math.floor(tonumber(g))%0x100000000;u=-math.floor(tonumber(u))%32;local g=g*2^u;return g%0x100000000+math.floor(g/0x100000000)end end;local v={0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5,0xd807aa98,0x12835b01,0x243185be,0x550c7dc3,0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174,0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc,0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da,0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7,0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967,0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13,0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85,0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3,0xd192e819,0xd6990624,0xf40e3585,0x106aa070,0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5,0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3,0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208,0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2}local function w(n)return string.gsub(n,".",function(t)return string.format("%02x",string.byte(t))end)end;local function x(y,z)local n=""for p=1,z do local A=y%256;n=string.char(A)..n;y=(y-A)/256 end;return n end;local function B(n,p)local z=0;for p=p,p+3 do z=z*256+string.byte(n,p)end;return z end;local function C(D,E)local F=-(E+1+8)%64;E=x(8*E,8)D=D.."\128"..string.rep("\0",F)..E;return D end;local function G(H)H[1]=0x6a09e667;H[2]=0xbb67ae85;H[3]=0x3c6ef372;H[4]=0xa54ff53a;H[5]=0x510e527f;H[6]=0x9b05688c;H[7]=0x1f83d9ab;H[8]=0x5be0cd19;return H end;local function I(D,p,H)local J={}for K=1,16 do J[K]=B(D,p+(K-1)*4)end;for K=17,64 do local L=J[K-15]local M=d(c(L,7),c(L,18),e(L,3))L=J[K-2]local N=d(c(L,17),c(L,19),e(L,10))J[K]=J[K-16]+M+J[K-7]+N end;local O,s,t,P,Q,R,S,T=H[1],H[2],H[3],H[4],H[5],H[6],H[7],H[8]for p=1,64 do local M=d(c(O,2),c(O,13),c(O,22))local U=d(b(O,s),b(O,t),b(s,t))local V=M+U;local N=d(c(Q,6),c(Q,11),c(Q,25))local W=d(b(Q,R),b(f(Q),S))local X=T+N+W+v[p]+J[p]T=S;S=R;R=Q;Q=P+X;P=t;t=s;s=O;O=X+V end;H[1]=b(H[1]+O)H[2]=b(H[2]+s)H[3]=b(H[3]+t)H[4]=b(H[4]+P)H[5]=b(H[5]+Q)H[6]=b(H[6]+R)H[7]=b(H[7]+S)H[8]=b(H[8]+T)end;local function Y(H)return w(x(H[1],4)..x(H[2],4)..x(H[3],4)..x(H[4],4)..x(H[5],4)..x(H[6],4)..x(H[7],4)..x(H[8],4))end;local Z={}sha256=function(D)D=C(D,#D)local H=G(Z)for p=1,#D,64 do I(D,p,H)end;return Y(H)end end
-- end of sha code
gallery.ass_show = function(new_ass)
ass_changed = true
ass = new_ass
end
gallery.item_to_overlay_path = function(index, item)
local filename = item.filename
local filename_hash = hash_cache[filename]
if filename_hash == nil then
filename_hash = string.sub(sha256(normalize_path(filename)), 1, 12)
hash_cache[filename] = filename_hash
end
local thumb_filename = string.format("%s_%d_%d_%s", filename_hash, gallery.geometry.thumbnail_size[1], gallery.geometry.thumbnail_size[2], string.gsub(opts.take_thumbnail_at, '%%', 'p'))
return utils.join_path(thumbs_dir, thumb_filename)
end
gallery.item_to_thumbnail_params = function(index, item)
return item.filename, opts.take_thumbnail_at
end
function blend_colors(colors)
if #colors == 1 then return colors[1] end
local comp1 = 0
local comp2 = 0
local comp3 = 0
for _, val in ipairs(colors) do
comp1 = comp1 + tonumber(string.sub(val, 1, 2), 16)
comp2 = comp2 + tonumber(string.sub(val, 3, 4), 16)
comp3 = comp3 + tonumber(string.sub(val, 5, 6), 16)
end
return string.format("%02x%02x%02x", comp1 / #colors, comp2 / #colors, comp3 / #colors)
end
gallery.item_to_border = function(index, item)
local size = 0
colors = {}
if flags[item.filename] then
colors[#colors + 1] = opts.flagged_border_color
size = math.max(size, opts.flagged_border_size)
end
if index == gallery.selection then
colors[#colors + 1] = opts.selected_border_color
size = math.max(size, opts.selected_border_size)
end
if opts.highlight_active and index == playlist_pos then
colors[#colors + 1] = opts.active_border_color
size = math.max(size, opts.active_border_size)
end
if #colors == 0 then
return opts.normal_border_size, opts.normal_border_color
else
return size, blend_colors(colors)
end
end
gallery.item_to_text = function(index, item)
if not opts.show_text or index ~= gallery.selection then return "", false end
local f
if opts.show_title and item.title then
f = item.title
else
f = item.filename
if opts.strip_directory then
if ON_WINDOWS then
f = string.match(f, "([^\\/]+)$") or f
else
f = string.match(f, "([^/]+)$") or f
end
end
if opts.strip_extension then
f = string.match(f, "(.+)%.[^.]+$") or f
end
end
return f, true
end
function setup_ui_handlers()
for key, func in pairs(bindings_repeat) do
mp.add_forced_key_binding(key, "playlist-view-"..key, func, {repeatable = true})
end
for key, func in pairs(bindings) do
mp.add_forced_key_binding(key, "playlist-view-"..key, func)
end
end
function teardown_ui_handlers()
for key, _ in pairs(bindings_repeat) do
mp.remove_key_binding("playlist-view-"..key)
end
for key, _ in pairs(bindings) do
mp.remove_key_binding("playlist-view-"..key)
end
end
function reload_bindings()
if gallery.active then
teardown_ui_handlers()
end
bindings = {}
bindings_repeat = {}
local increment_func = function(increment, clamp)
local new = (pending_selection or gallery.selection) + increment
if new <= 0 or new > #gallery.items then
if not clamp then return end
new = math.max(1, math.min(new, #gallery.items))
end
pending_selection = new
end
bindings[opts.FIRST] = function() pending_selection = 1 end
bindings[opts.LAST] = function() pending_selection = #gallery.items end
bindings[opts.ACCEPT] = function()
load_selection()
if opts.close_on_load_file then stop() end
end
bindings[opts.CANCEL] = function() stop() end
bindings[opts.FLAG] = function()
local name = gallery.items[gallery.selection].filename
if flags[name] == nil then
flags[name] = true
else
flags[name] = nil
end
gallery:ass_refresh(true, false, false, false)
end
if opts.mouse_support then
bindings["MBTN_LEFT"] = function()
local index = gallery:index_at(mp.get_mouse_pos())
if not index then return end
if index == gallery.selection then
load_selection()
if opts.close_on_load_file then stop() end
else
pending_selection= index
end
end
bindings["WHEEL_UP"] = function() increment_func(- gallery.geometry.columns, false) end
bindings["WHEEL_DOWN"] = function() increment_func( gallery.geometry.columns, false) end
end
bindings_repeat[opts.UP] = function() increment_func(- gallery.geometry.columns, false) end
bindings_repeat[opts.DOWN] = function() increment_func( gallery.geometry.columns, false) end
bindings_repeat[opts.LEFT] = function() increment_func(- 1, false) end
bindings_repeat[opts.RIGHT] = function() increment_func( 1, false) end
bindings_repeat[opts.PAGE_UP] = function() increment_func(- gallery.geometry.columns * gallery.geometry.rows, true) end
bindings_repeat[opts.PAGE_DOWN] = function() increment_func( gallery.geometry.columns * gallery.geometry.rows, true) end
bindings_repeat[opts.RANDOM] = function() pending_selection = math.random(1, #gallery.items) end
bindings_repeat[opts.REMOVE] = function()
local s = gallery.selection
mp.commandv("playlist-remove", s - 1)
gallery:set_selection(s + (s == #gallery.items and -1 or 1))
end
if gallery.active then
setup_ui_handlers()
end
end
function get_geometry_function()
local geometry_functions = loadstring(string.format([[
return {
function(ww, wh, gx, gy, gw, gh, sw, sh, tw, th)
return %s
end,
function(ww, wh, gx, gy, gw, gh, sw, sh, tw, th)
return %s
end,
function(ww, wh, gx, gy, gw, gh, sw, sh, tw, th)
return %s
end,
function(ww, wh, gx, gy, gw, gh, sw, sh, tw, th)
return %s
end
}]], opts.gallery_position, opts.gallery_size, opts.min_spacing, opts.thumbnail_size))()
local names = { "gallery_position", "gallery_size", "min_spacing", "thumbnail_size" }
local order = {} -- the order in which the 4 properties should be computed, based on inter-dependencies
-- build the dependency matrix
local patterns = { "g[xy]", "g[wh]", "s[wh]", "t[wh]" }
local deps = {}
for i = 1,4 do
for j = 1,4 do
local i_depends_on_j = (string.find(opts[names[i]], patterns[j]) ~= nil)
if i == j and i_depends_on_j then
msg.error(names[i] .. " depends on itself")
return
end
deps[i * 4 + j] = i_depends_on_j
end
end
local has_deps = function(index)
for j = 1,4 do
if deps[index * 4 + j] then
return true
end
end
return false
end
local num_resolved = 0
local resolved = { false, false, false, false }
while true do
local resolved_one = false
for i = 1, 4 do
if resolved[i] then
-- nothing to do
elseif not has_deps(i) then
order[#order + 1] = i
-- since i has no deps, anything that depends on it might as well not
for j = 1, 4 do
deps[j * 4 + i] = false
end
resolved[i] = true
resolved_one = true
num_resolved = num_resolved + 1
end
end
if num_resolved == 4 then
break
elseif not resolved_one then
local str = ""
for index, resolved in ipairs(resolved) do
if not resolved then
str = (str == "" and "" or (str .. ", ")) .. names[index]
end
end
msg.error("Circular dependency between " .. str)
return
end
end
return function(window_width, window_height)
local new_geom = {
gallery_position = {},
gallery_size = {},
min_spacing = {},
thumbnail_size = {},
}
for _, index in ipairs(order) do
new_geom[names[index]] = geometry_functions[index](
window_width, window_height,
new_geom.gallery_position[1], new_geom.gallery_position[2],
new_geom.gallery_size[1], new_geom.gallery_size[2],
new_geom.min_spacing[1], new_geom.min_spacing[2],
new_geom.thumbnail_size[1], new_geom.thumbnail_size[2]
)
-- extrawuerst
if opts.show_text and names[index] == "min_spacing" then
new_geom.min_spacing[2] = math.max(opts.text_size, new_geom.min_spacing[2])
elseif names[index] == "thumbnail_size" then
new_geom.thumbnail_size[1] = math.floor(new_geom.thumbnail_size[1])
new_geom.thumbnail_size[2] = math.floor(new_geom.thumbnail_size[2])
end
end
gallery:set_geometry(
new_geom.gallery_position[1], new_geom.gallery_position[2],
new_geom.gallery_size[1], new_geom.gallery_size[2],
new_geom.min_spacing[1], new_geom.min_spacing[2],
new_geom.thumbnail_size[1], new_geom.thumbnail_size[2]
)
end
end
function normalize_path(path)
if string.find(path, "://") then
return path
end
path = utils.join_path(utils.getcwd(), path)
if ON_WINDOWS then
path = string.gsub(path, "\\", "/")
end
path = string.gsub(path, "/%./", "/")
local n
repeat
path, n = string.gsub(path, "/[^/]*/%.%./", "/", 1)
until n == 0
return path
end
function playlist_changed(key, playlist)
if not gallery.active then return end
local did_change = function()
if #gallery.items ~= #playlist then return true end
for i = 1, #gallery.items do
if gallery.items[i].filename ~= playlist[i].filename then return true end
end
return false
end
if not did_change() then return end
if #playlist == 0 then
stop()
return
end
local selection_filename = gallery.items[gallery.selection].filename
gallery.items = playlist
local new_selection = math.max(1, math.min(gallery.selection, #gallery.items))
for i, f in ipairs(gallery.items) do
if selection_filename == f.filename then
new_selection = i
break
end
end
gallery:items_changed(new_selection)
end
function playlist_pos_changed(_, val)
playlist_pos = val
if opts.highlight_active then
gallery:ass_refresh(true, false, false, false)
end
if opts.follow_playlist_position then
pending_selection = val
end
end
function idle()
if pending_selection then
gallery:set_selection(pending_selection)
pending_selection = nil
end
if ass_changed or geometry_changed then
local ww, wh = mp.get_osd_size()
if geometry_changed then
geometry_changed = false
compute_geometry(ww, wh)
end
if ass_changed then
ass_changed = false
mp.set_osd_ass(ww, wh, ass)
end
end
end
function mark_geometry_stale()
geometry_changed = true
end
function start()
if gallery.active then return end
playlist = mp.get_property_native("playlist")
if #playlist == 0 then return end
gallery.items = playlist
local ww, wh = mp.get_osd_size()
compute_geometry(ww, wh)
playlist_pos = mp.get_property_number("playlist-pos-1")
gallery:set_selection(playlist_pos or 1)
if not gallery:activate() then return end
did_pause = false
if opts.pause_on_start and not mp.get_property_bool("pause", false) then
mp.set_property_bool("pause", true)
did_pause = true
end
if opts.command_on_open ~= "" then
mp.command(opts.command_on_open)
end
mp.observe_property("playlist-pos-1", "native", playlist_pos_changed)
mp.observe_property("playlist", "native", playlist_changed)
mp.observe_property("osd-width", "native", mark_geometry_stale)
mp.observe_property("osd-height", "native", mark_geometry_stale)
mp.register_idle(idle)
idle()
setup_ui_handlers()
end
function load_selection()
local sel = mp.get_property_number("playlist-pos-1", -1)
if sel == gallery.selection then return end
if opts.remember_time_position then
if sel then
local time = mp.get_property_number("time-pos")
if time and time > 1 then
resume[gallery.items[sel].filename] = time
end
end
mp.set_property("playlist-pos-1", gallery.selection)
local time = resume[gallery.items[gallery.selection].filename]
if not time then return end
local func
func = function()
mp.commandv("osd-msg-bar", "seek", time, "absolute")
mp.unregister_event(func)
end
mp.register_event("file-loaded", func)
else
mp.set_property("playlist-pos-1", gallery.selection)
end
end
function stop()
if not gallery.active then return end
if opts.resume_on_stop == "yes" or (opts.resume_on_stop == "only-if-did-pause" and did_pause) then
mp.set_property_bool("pause", false)
end
if opts.command_on_close ~= "" then
mp.command(opts.command_on_close)
end
mp.unobserve_property(playlist_pos_changed)
mp.unobserve_property(playlist_changed)
mp.unobserve_property(mark_geometry_stale)
mp.unregister_idle(idle)
teardown_ui_handlers()
gallery:deactivate()
idle()
end
function toggle()
if not gallery.active then
start()
else
if opts.load_file_on_toggle_off then load_selection() end
stop()
end
end
mp.register_script_message("thumbnail-generated", function(thumb_path)
gallery:thumbnail_generated(thumb_path)
end)
mp.register_script_message("thumbnails-generator-broadcast", function(generator_name)
gallery:add_generator(generator_name)
end)
function write_flag_file()
if next(flags) == nil then return end
local out = io.open(opts.flagged_file_path, "w")
for f, _ in pairs(flags) do
out:write(f .. "\n")
end
out:close()
end
mp.register_event("shutdown", write_flag_file)
reload_config()
if opts.start_on_file_end then
mp.observe_property("eof-reached", "bool", function(_, val)
if val and mp.get_property_number("playlist-count") > 1 then
start()
end
end)
end
if opts.start_on_mpv_startup then
local autostart
autostart = function()
if mp.get_property_number("playlist-count") == 0 then return end
if mp.get_property_number("osd-width") <= 0 then return end
start()
mp.unobserve_property(autostart)
end
mp.observe_property("playlist-count", "number", autostart)
mp.observe_property("osd-width", "number", autostart)
end
mp.add_key_binding(nil, "playlist-view-open", function() start() end)
mp.add_key_binding(nil, "playlist-view-close", stop)
mp.add_key_binding('g', "playlist-view-toggle", toggle)
mp.add_key_binding(nil, "playlist-view-load-selection", load_selection)
mp.add_key_binding(nil, "playlist-view-write-flag-file", write_flag_file)