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Wipneus

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Test space
« on: February 05, 2019, 04:17:09 PM »
Thread used for testing images/animations. In my case an mp4 animation created with ffmpeg.

This image uses a -pix_fmt yuv420p option.

b_lumenkraft

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Re: Test space
« Reply #1 on: February 05, 2019, 04:19:15 PM »
Hey Wipneus,

this one is working fine on my Mac! Thanks a lot for doing this.

Niall Dollard

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Re: Test space
« Reply #2 on: February 05, 2019, 05:25:47 PM »
Tried it on two browsers. Chrome and believe it or not, IE 11, and it works fine.  :)

Sterks

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Re: Test space
« Reply #3 on: February 05, 2019, 08:19:25 PM »
 does not work in ipad (latest ios) either chrome or safari. Sorry

Wipneus

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Re: Test space
« Reply #4 on: February 06, 2019, 09:49:15 AM »
does not work in ipad (latest ios) either chrome or safari. Sorry

Not happy to hear that Sterks. Unfortunately I cannot test that device myself. What I can do is to find another file that works and compare with mine that does not. 

Are you able to see the mp4's that A-team posted, like in this post (and many others) :
https://forum.arctic-sea-ice.net/index.php/topic,1259.msg138898.html#msg138898

uniquorn

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Re: Test space
« Reply #5 on: February 09, 2019, 04:08:09 PM »
testing avi. testing mp4
settled on

 ffmpeg -i tst2.gif -crf 29 -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" tst2e.mp4

-crf 29 the higher the number the lower the quality, smaller file
-pix_fmt yuv420p better chance of working in all browsers (same as Wipneus)
-vf prevents odd number of frames

probably still doesn't work for everyone but tested ok in firefox and edge on win10
« Last Edit: February 09, 2019, 08:27:45 PM by uniquorn »

uniquorn

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Re: Test space
« Reply #6 on: February 18, 2019, 12:35:51 AM »
whoi itp107 test

sesyf

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Re: Test space
« Reply #7 on: February 20, 2019, 04:31:13 PM »
Perhaps it’s just me but my ipad / safari does not allow mp4 for some reason... I should try to find if it’s some setting or whatever. I get the ’run video’ icon with a slash over it...

uniquorn

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Re: Test space
« Reply #8 on: February 20, 2019, 07:21:52 PM »
No apple devices here to test with either but these specs are quite limiting for this forum. Ipad users may have to download and play (more efficient if played more than once) Please see https://airmore.com/play-mp4-on-ipad.html
« Last Edit: February 20, 2019, 07:33:57 PM by uniquorn »

uniquorn

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Re: Test space
« Reply #9 on: April 20, 2019, 11:32:30 AM »
h.264 test
ffmpeg -i rb2.gif -c:v libx264 -preset slow -c:a copy rb4.mp4
not working for me

Sleepy

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Re: Test space
« Reply #10 on: April 20, 2019, 02:04:01 PM »
Testing the above with quicktime and iOS compatibility options (which makes it a bit larger):
ffmpeg -i rb4.mp4 -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -level 3 rb4-MAC.mp4
Omnia mirari, etiam tritissima.
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Science is a jealous mistress and takes little account of a man's feelings.

uniquorn

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Re: Test space
« Reply #11 on: April 21, 2019, 12:35:57 PM »
Thanks Sleepy. Will get around to reading the manual sometime. :)
@b_l you could try ImageJ (or Fiji which already has more plug-ins) though you may need gimp for transparency (alpha)
« Last Edit: April 21, 2019, 12:48:49 PM by uniquorn »

uniquorn

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Re: Test space
« Reply #12 on: April 21, 2019, 01:55:27 PM »
ascat last 50days test for mac
ffmpeg -i asc-mac.gif -vcodec libx264 -pix_fmt yuv420p -profile:v baseline -level 3 -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" asc-mac2.mp4