From: Evgeny Zajcev <lg.zevlg@gmail.com>
To: emacs-devel@gnu.org
Subject: excessively slow image animation
Date: Wed, 13 Feb 2019 17:39:38 +0300 [thread overview]
Message-ID: <CAO=W_ZrUUDM3aaNgf9X84Z0vapDWd8gT=dS02sdWqx7anXP_tw@mail.gmail.com> (raw)
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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
Then I simple converted the file to set of bmp files:
$ time convert ~/tmp/giphy.mp4 ~/tmp/anim1/giphy%05d.bmp
convert ~/tmp/giphy.mp4 ~/tmp/anim1/giphy%05d.bmp 0,18s user 0,10s
system 117% cpu 0,237 total
$
And animated on these bmp files:
(let ((ctime (float-time)))
(setq img (create-image "~/tmp/anim1/giphy00000.bmp" 'imagemagick nil
:scale 1.0))
(insert-image img)
(cl-dotimes (index 65)
(plist-put (cdr img) :file (format "~/tmp/anim1/giphy%05d.bmp" index))
(force-window-update)
(sit-for 0.0))
(- (float-time) ctime))
==> 1.3518333435058594
Now I use method with bmp files. I would like to use built in `:index'
image property to animate images, however current animation speed is
totally not acceptable. Can this be fixed, or am I doing something wrong?
Thanks
--Versions--
EMACS: GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.18.9) of 2018-11-13
IM: Version: ImageMagick 6.8.9-9 Q16 x86_64 2018-09-28
http://www.imagemagick.org
--
lg
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next reply other threads:[~2019-02-13 14:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 14:39 Evgeny Zajcev [this message]
2019-02-13 17:03 ` excessively slow image animation Lars Ingebrigtsen
2019-02-13 23:14 ` Alan Third
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
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