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;;; yeetube.el --- Watch & Download Videos -*- lexical-binding: t; -*-
;; Copyright (C) 2023 Thanos Apollo
;; Author: Thanos Apollo <[email protected]>
;; Keywords: extensions
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Search, play and downlaod videos from your desired video search
;; engine from Emacs.
;;; Code:
(require 'url)
(require 'org-element)
(defgroup yeetube nil
"Search, Play & Download videos."
:group 'external
:prefix "yt-")
(defcustom yt-search-for 10
"Define the amount of search results."
:type 'number
:safe #'numberp
:group 'yeetube)
(defcustom yt-search-query "https://www.youtube.com/results?search_query="
"Search URL."
:type 'string
:safe #'stringp
:group 'yeetube)
(defcustom yt-download-audio-format nil
"Select download video as audio FORMAT.
If nil yt-download-videos output will be the default format.
Example Usage:
(setq yt-download-audio-format \"m4a\")"
:type 'string
:safe #'stringp
:group 'yeetube)
(defcustom yt-player "mpv"
"Select default video player as command.
Example Usage:
(setq yt-player \"vlc\")
(setq yt-player \"mpv --no-audio\")"
:type 'string
:safe #'stringp
:group 'yeetube)
(defcustom yt-download-directory "~/Downloads"
"Default directory to downlaod videos."
:type 'string
:safe #'stringp
:group 'yeetube)
(define-minor-mode yt-mode
"Yeetube mode."
:init-value nil
:lighter " yt-mode"
:keymap (let ((yt-mode-map (make-sparse-keymap)))
(define-key yt-mode-map (kbd "RET") 'yt-play)
(define-key yt-mode-map (kbd "d") 'yt-download-video)
yt-mode-map))
(defun yt-play ()
"Open the link at point in an `'org-mode buffer with `'mpv."
(interactive)
(let ((url (org-element-property
:raw-link (org-element-context))))
(when (string-prefix-p "http" url)
(async-shell-command (format "%s %s" yt-player url))
(message "Opening %s with mpv" url))))
;; TODO: Check if video_type of videoid is short or video
(defun yt-search (arg)
"Search for ARG."
(interactive "sYeetube Search: ")
(let ((videoIds '())
(videoTitles '()))
(with-current-buffer (url-retrieve-synchronously (concat yt-search-query arg))
(goto-char (point-min))
(while (< (length videoIds) yt-search-for)
(search-forward "videoId")
(let* ((start (point))
(end (search-forward ","))
(videoid (buffer-substring (+ start 3) (- end 2))))
(unless (or (member videoid videoIds)
(not (and (>= (length videoid) 9)
(<= (length videoid) 13)
(string-match-p "^[a-zA-Z0-9_-]*$" videoid))))
(push videoid videoIds)
(search-forward "text")
(let* ((start (point))
(end (search-forward ","))
(title (buffer-substring (+ start 3) (- end 4))))
(push title videoTitles))))))
(with-current-buffer (switch-to-buffer
(get-buffer-create "*Yeetube Search*"))
(setq buffer-read-only nil)
(erase-buffer)
(org-mode)
(insert
"\n* Search Results: \n \n")
(cl-loop for (videoId . videoTitle) in
(cl-mapcar #'cons (reverse videoIds) (reverse videoTitles))
do (insert (format "+ [[https://www.youtube.com/watch?v=%s][%s ]]\n"
videoId videoTitle)))
(insert
"\n\n\n~RET~ to play video\n"
"\n~d~ to download\n")
(unless (toggle-enable-multibyte-characters)
(toggle-enable-multibyte-characters))
(setq buffer-read-only t)
(yt-mode))))
(defun yt-download-video ()
"Download using link at point in an `'org-mode buffer with yt-dlp."
(interactive)
(let ((url (org-element-property
:raw-link (org-element-context))))
(when (string-prefix-p "http" url)
(let ((default-directory yt-download-directory))
(async-shell-command (format "yt-dlp %s" url))
(message "Downloading %s " url)))))
(defun yt-download-videos ()
"Download one or multiple videos using yt-dlp.
This command is not meant to be used through the
*Yeetube Search* buffer.
Usage Example:
Open a Dired buffer and navigate where you want to download your videos,
then run this command interactively."
(interactive)
(let ((links '())
(names '())
(url "")
(name "")
(buffer-counter 1)
(name-counter 1))
;; Read links and names until "q" is entered
(while (not (string= url "q"))
(setq url (read-string "Enter URL (q to quit): "))
(unless (string= url "q")
(setq links (cons url links))
(setq name (read-string (format "Enter name (%d-NAME): " name-counter)))
(while (get-buffer (format "download-video-%d" buffer-counter))
(setq buffer-counter (1+ buffer-counter)))
(setq names (cons name names))
(setq buffer-counter (1+ buffer-counter))
(setq name-counter (1+ name-counter))))
;; Process the collected links and names
(setq links (reverse links))
(setq names (reverse names))
(dolist (pair (cl-mapcar 'cons links names))
(let ((url (car pair))
(name (cdr pair))
(buffer-name (format "download-video-%d" buffer-counter)))
(async-shell-command (format "yt-dlp %s -o %s" url name) buffer-name)
(setq buffer-counter (1+ buffer-counter))))))
(provide 'yeetube)
;;; yeetube.el ends here
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