From: Evgeny Zajcev <lg.zevlg@gmail.com>
To: Alan Third <alan@idiocy.org>
Cc: Lars Ingebrigtsen <larsi@gnus.org>, emacs-devel@gnu.org
Subject: Re: excessively slow image animation
Date: Thu, 14 Feb 2019 02:29:45 +0300 [thread overview]
Message-ID: <CAO=W_ZqLjzBySbLXN8mw16T5fdB6BKMv=QapS9k6v5SkdYK43A@mail.gmail.com> (raw)
In-Reply-To: <20190213231459.GA26737@breton.holly.idiocy.org>
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чт, 14 февр. 2019 г. в 02:15, Alan Third <alan@idiocy.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.
>
Cache washes out really fast even if you set `image-cache-eviction-delay'
to huge value.
In my case, I want to animate 50 images simultaneously and it is not yet
possible without tweeks.
--
lg
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next prev parent reply other threads:[~2019-02-13 23:29 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
2019-02-13 23:29 ` Evgeny Zajcev [this message]
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
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