From: Alan Third <alan@idiocy.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: Evgeny Zajcev <lg.zevlg@gmail.com>, emacs-devel@gnu.org
Subject: Re: excessively slow image animation
Date: Wed, 13 Feb 2019 23:14:59 +0000 [thread overview]
Message-ID: <20190213231459.GA26737@breton.holly.idiocy.org> (raw)
In-Reply-To: <m35ztnhb7s.fsf@gnus.org>
On Wed, Feb 13, 2019 at 06:03:51PM +0100, Lars Ingebrigtsen wrote:
> Evgeny Zajcev <lg.zevlg@gmail.com> writes:
>
> > I've got multi frame image at http://lgarc.narod.ru/giphy.mp4
> >
> > And run next code on it:
> >
> > (let ((ctime (float-time)))
> > (setq img (create-image "~/tmp/giphy.mp4" 'imagemagick nil :scale 1.0))
> > (insert-image img)
> > (cl-dotimes (index 65)
> > (image-show-frame img index 'nocheck)
> > (sit-for 0.0))
> > (- (float-time) ctime))
> > ==> 18.788017988204956
> >
> > 18 seconds to show every frame
>
> Wow, that's slow...
As an aside: for some reason if you run this a second time it doesn’t
use the already cached images from the first run, so it’s just as slow
as that first run. I may be misunderstanding how the cache is supposed
to work, but that doesn’t seem right to me.
--
Alan Third
next prev parent reply other threads:[~2019-02-13 23:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 14:39 excessively slow image animation Evgeny Zajcev
2019-02-13 17:03 ` Lars Ingebrigtsen
2019-02-13 23:14 ` Alan Third [this message]
2019-02-13 23:29 ` Evgeny Zajcev
2019-02-14 18:21 ` Alan Third
2019-02-14 18:41 ` Evgeny Zajcev
2019-02-14 0:30 ` Evgeny Zajcev
2019-02-14 4:30 ` Stefan Monnier
2019-02-26 21:18 ` Daniel Pittman
2019-02-26 21:50 ` Evgeny Zajcev
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190213231459.GA26737@breton.holly.idiocy.org \
--to=alan@idiocy.org \
--cc=emacs-devel@gnu.org \
--cc=larsi@gnus.org \
--cc=lg.zevlg@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.