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mpv/player/lua/ytdl_hook.lua

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local utils = require 'mp.utils'
local msg = require 'mp.msg'
local ytdl = {
path = "youtube-dl",
searched = false
}
local function exec(args)
local ret = utils.subprocess({args = args})
return ret.status, ret.stdout, ret
end
-- return true if it was explicitly set on the command line
local function option_was_set(name)
return mp.get_property_bool("option-info/" ..name.. "/set-from-commandline",
false)
end
-- youtube-dl may set special http headers for some sites (user-agent, cookies)
local function set_http_headers(http_headers)
if not http_headers then
return
end
local headers = {}
local useragent = http_headers["User-Agent"]
if useragent and not option_was_set("user-agent") then
mp.set_property("file-local-options/user-agent", useragent)
end
local additional_fields = {"Cookie", "Referer"}
for idx, item in pairs(additional_fields) do
local field_value = http_headers[item]
if field_value then
headers[#headers + 1] = item .. ": " .. field_value
end
end
if #headers > 0 and not option_was_set("http-header-fields") then
mp.set_property_native("file-local-options/http-header-fields", headers)
end
end
local function append_rtmp_prop(props, name, value)
if not name or not value then
return props
end
if props and props ~= "" then
props = props..","
else
props = ""
end
return props..name.."=\""..value.."\""
end
local function edl_escape(url)
return "%" .. string.len(url) .. "%" .. url
end
mp.add_hook("on_load", 10, function ()
local url = mp.get_property("stream-open-filename")
if (url:find("http://") == 1) or (url:find("https://") == 1)
or (url:find("ytdl://") == 1) then
-- check for youtube-dl in mpv's config dir
if not (ytdl.searched) then
local ytdl_mcd = mp.find_config_file("youtube-dl")
if not (ytdl_mcd == nil) then
msg.verbose("found youtube-dl at: " .. ytdl_mcd)
ytdl.path = ytdl_mcd
end
ytdl.searched = true
end
-- strip ytdl://
if (url:find("ytdl://") == 1) then
url = url:sub(8)
end
local format = mp.get_property("options/ytdl-format")
local raw_options = mp.get_property_native("options/ytdl-raw-options")
local allsubs = true
local command = {
ytdl.path, "--no-warnings", "-J", "--flat-playlist",
"--sub-format", "ass/srt/best", "--no-playlist"
}
-- Checks if video option is "no", change format accordingly,
-- but only if user didn't explicitly set one
if (mp.get_property("options/vid") == "no")
and not option_was_set("ytdl-format") then
format = "bestaudio"
msg.verbose("Video disabled. Only using audio")
end
if (format == "") then
format = "bestvideo+bestaudio"
end
table.insert(command, "--format")
table.insert(command, string.format('(%s)[protocol!=http_dash_segments]/best', format))
for param, arg in pairs(raw_options) do
table.insert(command, "--" .. param)
if (arg ~= "") then
table.insert(command, arg)
end
if (param == "sub-lang") and (arg ~= "") then
allsubs = false
end
end
if (allsubs == true) then
table.insert(command, "--all-subs")
end
table.insert(command, "--")
table.insert(command, url)
msg.debug("Running: " .. table.concat(command,' '))
local es, json, result = exec(command)
if (es < 0) or (json == nil) or (json == "") then
if not result.killed_by_us then
msg.warn("youtube-dl failed, trying to play URL directly ...")
end
return
end
local json, err = utils.parse_json(json)
if (json == nil) then
msg.error("failed to parse JSON data: " .. err)
return
end
msg.verbose("youtube-dl succeeded!")
-- what did we get?
if not (json["direct"] == nil) and (json["direct"] == true) then
-- direct URL, nothing to do
msg.verbose("Got direct URL")
return
elseif not (json["_type"] == nil)
and ((json["_type"] == "playlist")
or (json["_type"] == "multi_video")) then
-- a playlist
if (#json.entries == 0) then
msg.warn("Got empty playlist, nothing to play.")
return
end
-- some funky guessing to detect multi-arc videos
if (not (json.entries[1]["_type"] == "url_transparent")) and
(not (json.entries[1]["webpage_url"] == nil)
and (json.entries[1]["webpage_url"] == json["webpage_url"])) then
msg.verbose("multi-arc video detected, building EDL")
local playlist = "edl://"
for i, entry in pairs(json.entries) do
playlist = playlist .. edl_escape(entry.url)
if not (entry.duration == nil) then
playlist = playlist..",start=0,length="..entry.duration
end
playlist = playlist .. ";"
end
msg.debug("EDL: " .. playlist)
-- can't change the http headers for each entry, so use the 1st
if json.entries[1] then
set_http_headers(json.entries[1].http_headers)
end
mp.set_property("stream-open-filename", playlist)
if not (json.title == nil) then
mp.set_property("file-local-options/force-media-title",
json.title)
end
-- there might not be subs for the first segment
local entry_wsubs = nil
for i, entry in pairs(json.entries) do
if not (entry.requested_subtitles == nil) then
entry_wsubs = i
break
end
end
if not (entry_wsubs == nil) and
not (json.entries[entry_wsubs].duration == nil) then
for j, req in pairs(json.entries[entry_wsubs].requested_subtitles) do
local subfile = "edl://"
for i, entry in pairs(json.entries) do
if not (entry.requested_subtitles == nil) and
not (entry.requested_subtitles[j] == nil) then
subfile = subfile..edl_escape(entry.requested_subtitles[j].url)
else
subfile = subfile..edl_escape("memory://WEBVTT")
end
subfile = subfile..",start=0,length="..entry.duration..";"
end
msg.debug(j.." sub EDL: "..subfile)
mp.commandv("sub-add", subfile, "auto", req.ext, j)
end
end
else
local playlist = "#EXTM3U\n"
for i, entry in pairs(json.entries) do
local site = entry.url
-- some extractors will still return the full info for
-- all clips in the playlist and the URL will point
-- directly to the file in that case, which we don't
-- want so get the webpage URL instead, which is what
-- we want
if not (json.entries[1]["_type"] == "url_transparent")
and not (entry["webpage_url"] == nil) then
site = entry["webpage_url"]
end
playlist = playlist .. "ytdl://" .. site .. "\n"
end
mp.set_property("stream-open-filename", "memory://" .. playlist)
end
else -- probably a video
local streamurl = ""
-- DASH?
if not (json["requested_formats"] == nil) then
if (json["requested_formats"][1].protocol == "http_dash_segments") then
msg.error("MPEG-Dash Segments unsupported, add [protocol!=http_dash_segments] to your ytdl-format.")
return
end
-- video url
streamurl = json["requested_formats"][1].url
-- audio url
mp.commandv("audio-add", json["requested_formats"][2].url,
"select", json["requested_formats"][2]["format_note"] or "")
elseif not (json.url == nil) then
-- normal video
streamurl = json.url
set_http_headers(json.http_headers)
else
msg.error("No URL found in JSON data.")
return
end
msg.debug("streamurl: " .. streamurl)
mp.set_property("stream-open-filename", streamurl)
mp.set_property("file-local-options/force-media-title", json.title)
-- add subtitles
if not (json.requested_subtitles == nil) then
for lang, sub_info in pairs(json.requested_subtitles) do
msg.verbose("adding subtitle ["..lang.."]")
local sub = nil
if not (sub_info.data == nil) then
sub = "memory://"..sub_info.data
elseif not (sub_info.url == nil) then
sub = sub_info.url
end
if not (sub == nil) then
mp.commandv("sub-add", sub,
"auto", sub_info.ext, lang)
else
msg.verbose("No subtitle data/url for ["..lang.."]")
end
end
end
-- set start time
if not (json.start_time == nil) then
msg.debug("Setting start to: " .. json.start_time .. " secs")
mp.set_property("file-local-options/start", json.start_time)
end
-- for rtmp
if (json.protocol == "rtmp") then
local rtmp_prop = append_rtmp_prop(nil,
"rtmp_tcurl", streamurl)
rtmp_prop = append_rtmp_prop(rtmp_prop,
"rtmp_pageurl", json.page_url)
rtmp_prop = append_rtmp_prop(rtmp_prop,
"rtmp_playpath", json.play_path)
rtmp_prop = append_rtmp_prop(rtmp_prop,
"rtmp_swfverify", json.player_url)
rtmp_prop = append_rtmp_prop(rtmp_prop,
"rtmp_app", json.app)
mp.set_property("file-local-options/stream-lavf-o", rtmp_prop)
end
end
end
end)
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