#7298: use html5 video tag for animations
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Reporter: whuss | Owner: whuss
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.4
Component: graphics | Resolution: fixed
Keywords: animation, video | Merged in:
Authors: Martin von Gagern | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/gagern/ticket/7298 | 2f6a6703ba31efa50c24b8eab742151ac5adbd25
Dependencies: | Stopgaps:
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Comment (by gagern):
Replying to [comment:50 vbraun]:
> GIF/APNG/Webm animations presumably all look the same to a human
I ''very strongly'' disagree. Animations involving gradients, e.g. from 3D
scenes, tend to look ''horrible'' in 255 color GIF. Animations with few
frames and lots of change in between (like e.g. the first example from the
animate docs) look ''horrible'' as video, due to heavy compression
artifacts.
APNG looks as good as things can get, since we create everything else from
a bunch of PNG frames and this is a lossless method. But for lengthy
animations it might simply be too big to be feasible to transfer this.
After all, my APNG assembler makes no effort to compress things using
clever frame disposal combinations. It simply concatenates files, more or
less.
Do I need to bundle up a few examples to support these claims, or will you
accept my word or your own observations for this?
> Users care either about […] saving an animation in a particular format
to be used elsewhere.
The easiest way to do this, in my book, is have the animation show up in
my notebook, then right-click and save to file. That works for cloud
sessions as well as for local sessions as well as for sessions using some
notebook server in my LAN. And I can always look at the animation first,
make sure it looks the way I want it to, ''then'' save it to a local file
once I'm satisfied. So the distinction between “view” and “save” is not as
sharp as you claim.
--
Ticket URL: <http://trac.sagemath.org/ticket/7298#comment:51>
Sage <http://www.sagemath.org>
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