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Posts about mpsyt

Playing music using mpsyt from Emacs

I've started using the wonderful mpsyt to play any music from youtube, since I'm not really interested in the video. But, since I use emacs for chat/IRC, I end up getting youtube links into emacs and opening them opens them up in my browser. I ended up writing some elisp to play the songs from within an instance of mpsyt running inside an emacs buffer.

(defun pc/short-url-at-point ()
  "Gets the short url at point.

This function is required only because
`thing-at-point-url-at-point' ignores urls (without a scheme)
that don't start with www."
  (let ((bounds (thing-at-point-bounds-of-url-at-point t)))
    (when (and bounds (< (car bounds) (cdr bounds)))
      (buffer-substring-no-properties (car bounds) (cdr bounds)))))

(defun pc/mpsyt-url (url)
  (let ((buffer (current-buffer))
	(mpsyt-proc-name "*mpsyt*"))

    ;; Start a new term with *mpsyt* if there isn't one
    (unless (get-process mpsyt-proc-name)
      (when (get-buffer mpsyt-proc-name)
	(kill-buffer (get-buffer mpsyt-proc-name)))
      (ansi-term "mpsyt" "mpsyt"))

    ;; Play given url in mpsyt
    (let ((mpsyt-proc (get-process mpsyt-proc-name)))
      ;; If something is already playing, stop it and play this...
      (term-send-string mpsyt-proc "\\n\\n\\n")
      ;; We wait for a bit, since looking for the prompt seems to fail, sometimes?
      (sleep-for 1)
      (term-send-string mpsyt-proc "\\n")

      ;; Actually send the command to playurl
      (term-simple-send (get-process mpsyt-proc-name)
			(format "playurl %s" url)))

    (switch-to-buffer buffer)))

(defun pc/mpsyt-url-at-point ()
  "Play the URL at point using mpsyt."
  (let ((url (or (url-get-url-at-point) (pc/short-url-at-point))))
    (if (not url)
      (message "No URL found")
	(message (format "Playing %s with mpsyt" url))
      (pc/mpsyt-url url))))

The current version of mpsyt crashes when run from inside emacs due to a bug in the code to get the terminal size, which should be fixed once this patch is merged.

I would've expected thing-at-point-url-at-point to be able to find urls even when they don't have a schema, but it tries to guess the schema from urls and fails to work when the url starts with instead of

I started off using the command-line interface of mpsyt by running it using shell-command or start-process. But, it seemed useful to have a buffer of mpsyt to switch to – easier to search for new music, repeating songs, etc. Not all tasks/actions are achievable through mpsyt's command line args.

I ended up writing more code than I thought I would have to1. But, I'm pretty happy with how this all works, right now.



- Isn't it true, more often than not?