ytdl_hook: add option to exclude URLs from being parsed

This is more of a niche usecase than --ytdl-format and --ytdl-raw-options,
so a simple script option should be enough.

Either create lua-settings/ytdl_hook.conf with
'exclude=example.com,sub.example.com' option or
"--script-opts=ytdl_hook-exclude=example.com,sub.example.com"

DOCS/man/options.rst

@@ -531,6 +531,26 @@ Program Behavior
 
     If the script can't do anything with an URL, it will do nothing.
 
+    The `exclude` script option accepts a comma-separated list of URL patterns
+    which mpv should not use with youtube-dl. The patterns are matched after
+    the ``http(s)://`` part of the URL.
+
+    ``^`` matches the beginning of the URL, ``$`` matches its end, and you
+    should use ``%`` before any of the characters ``^$()%,.[]*+-?`` to match
+    that character.
+
+    .. admonition:: Example
+
+        ``--script-opts=ytdl_hook-exclude='^youtube%.com'`` will exclude any
+            URL that starts with ``http://youtube.com`` or
+            ``https://youtube.com``.
+        ``--script-opts=ytdl_hook-exclude='%.mkv$,%.mp4$'`` will exclude any
+            URL that ends with ``.mkv`` or ``.mp4``.
+
+    See more `lua patterns here`__.
+    __ https://www.lua.org/manual/5.1/manual.html#5.4.1
+
+
 ``--ytdl-format=<best|worst|mp4|webm|...>``
     Video format/quality that is directly passed to youtube-dl. The possible
     values are specific to the website and the video, for a given url the

player/lua/ytdl_hook.lua

@@ -1,9 +1,15 @@
 local utils = require 'mp.utils'
 local msg = require 'mp.msg'
+local options = require 'mp.options'
+
+local o = {
+    exclude = ""
+}
 
 local ytdl = {
     path = "youtube-dl",
-    searched = false
+    searched = false,
+    blacklisted = {}
 }
 
 local chapter_list = {}
@@ -93,6 +99,27 @@ local function extract_chapters(data, video_length)
     return ret
 end
 
+local function is_blacklisted(url)
+    if o.blacklist == "" then return false end
+    if #ytdl.blacklisted == 0 then
+        local joined = o.blacklist
+        while joined:match(',?[^,]+') do
+            local _, e, domain = joined:find(',?([^,]+)')
+            table.insert(ytdl.blacklisted, domain)
+            joined = joined:sub(e+1)
+        end
+    end
+    if #ytdl.blacklisted > 0 then
+        url = url:match('https?://(.+)')
+        for _, exclude in ipairs(ytdl.blacklisted) do
+            if url:match(exclude) then
+                return true
+            end
+        end
+    end
+    return false
+end
+
 local function edl_track_joined(fragments, protocol, is_live)
     if not (type(fragments) == "table") or not fragments[1] then
         msg.debug("No fragments to join into EDL")
@@ -244,9 +271,8 @@ end
 mp.add_hook("on_load", 10, function ()
     local url = mp.get_property("stream-open-filename")
     local start_time = os.clock()
-
+    if (url:find("ytdl://") == 1) or
-    if (url:find("http://") == 1) or (url:find("https://") == 1)
+        ((url:find("https?://") == 1) and not is_blacklisted(url)) then
-        or (url:find("ytdl://") == 1) then
 
         -- check for youtube-dl in mpv's config dir
         if not (ytdl.searched) then