I've completed writing all the demos and most of the documentation for my soon to be released vector graphics and physics simulation library. The library is named Tiny Sim and the first version will be published soon. I have lots of planned features and improvements to come.

If you are interested I posted a very brief overview page and a video containing all nine demos for my library on this web page:

https://www.getlazarus.org/videos/physics/demos/
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On Fri, Dec 3, 2021 at 2:23 AM Anthony Walter via lazarus <

At the top of the your supplied link page , the following message is displayed
( which is not copyable , I wrote it below myself ) :

(i) To play video , you may need to install the required video codecs.

When "Play" is clicked , it is displaying the following message ( which is not copyable , I wrote it below myself ) :

No video with supported format and MIME type found.

A display occurred below the video play area when I clicked something with its partial output under "Console" tab is the following :

Specified “type” attribute of “video/mp4” is not supported. Load of media resource //cache.getlazarus.org/videos/tiny-sim-demos.mp4 failed. demos All candidate resources failed to load. Media load paused. demos SyntaxHighlighter.config home.js:120:10
The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4 demos

I am playing Youtube videos without any problem .

[s at localhost ~]$ uname -a
Linux localhost.localdomain 4.13.16-100.fc25.x86_64 #1 SMP Mon Nov 27 19:52:46 UTC 20
17 x86_64 x86_64 x86_64 GNU/Linux
[s at localhost ~]$

With my best regards

Mehmet Erol Sanliturk
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Works fine from where I am (in front of a MacBook) and it looks absolutely awesome!!

Samps

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Wow, so cool!
Great  work.
Congratulations.

Am Freitag, 3. Dezember 2021, 00:23:34 MEZ hat Anthony Walter via lazarus Folgendes geschrieben:

I've completed writing all the demos and most of the documentation for my soon to be released vector graphics and physics simulation library. The library is named Tiny Sim and the first version will be published soon. I have lots of planned features and improvements to come. If you are interested I posted a very brief overview page and a video containing all nine demos for my library on this web page: https://www.getlazarus.org/videos/physics/demos/

Mehmet Erol Sanliturk wrote

At the top of the your supplied link page , the following message is displayed ( which is not copyable , I wrote it below myself ) : (i) To play video , you may need to install the required video codecs.

if your system cannot play the video, then this is the correct message... apparently you are missing some video codecs that you need to install if you expect to view this video and others like it... at a guess, i'd say that you do not have the AVC (Advanced Video Codec) installed... the below info pulled from a kubuntu 14.04 system that easily viewed the video both online and after downloading it...

$ ffprobe -report "cv137g.mp4"

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cv137g.mp4': Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.76.100
Duration: 00:01:42.53, start: 0.000000, bitrate: 6094 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 5955 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler

On Fri, Dec 3, 2021 at 1:13 PM wkitty42--- via lazarus <

You are right : The Firefox is using different resources other than Fedora supplied ones
during Youtube video playing .
It is necessary to install Fedora supplied packages for other HTML pages .

From responses to my message

I understand that Fedora KDE 25 supplied , related packages are missing from my computer ,
because my version of Fedora KDE 25 was installed a few days ago by replacing a broken HDD containing Fedora KDE 28 , and required codecs are not installed yet .

Thank you very much .

Mehmet Erol Sanliturk
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Thanks for sharing your great work !!