Thanks for all the clues.
For performance reasons I deactivated this effect video and replaced it
with a simple image. I will try the previous effect elsewhere at a later
time, with the right corrections. Currently the fast page loading is
more important and a usable download page. With this change you should
have no more problems with too high CPU usage.
Sam
On 02.11.19 15:47, Andrew Randrianasulu wrote:
Well, I hope Sam will find this info useful (myself is not a dev for adding
this to webpage/locally):
https://gist.github.com/cferdinandi/9044694
"simple method to stop YouTube, Vimeo, and HTML5 videos from playing."
https://gomakethings.com/stopping-youtube-vimeo-and-html5-videos-with-javascript/
basically the same but without comments. sometimes comments useful .....
/**
* Stop an iframe or HTML5 <video> from playing
* @param {Element} element The element that contains the video
*/
var stopVideo = function ( element ) {
var iframe = element.querySelector( 'iframe');
var video = element.querySelector( 'video' );
if ( iframe ) {
var iframeSrc = iframe.src;
iframe.src = iframeSrc;
}
if ( video ) {
video.pause();
}
};
--------------
and further in comments
===========
Copy link
Luminicus commented Sep 23, 2019
Good idea, but how can I call the function on click to pause all iframe >
videos on the page (without ID of every iframe) ?
@cferdinandi
Copy link
Owner Author
cferdinandi commented Sep 24, 2019
@Luminicus This outta do it.
/**
* Stop all iframes or HTML5 <video>'s from playing
*/
var stopVideos = function () {
var videos = document.querySelectorAll('iframe, video');
Array.prototype.forEach.call(videos, function (video) {
if (video.tagName.toLowerCase() === 'video') {
video.pause();
} else {
var src = video.src;
video.src = src;
}
});
};
============
but may be you already figured this out. I usually check git, not website
itself :}
---------- Пересланное сообщение ----------
Тема: Re: [Cin] Video background on CinGG website eats CPU ...
Дата: Пятница 01 ноября 2019
Отправитель: Andrew Randrianasulu <[email protected]>
Получатель: "Cinelerra.GG" <[email protected]>
В сообщении от Friday 01 November 2019 13:29:04 Andrea paz написал(а):
Your information and tests are always interesting, thanks also for the
link. I also noticed a great CPU usage watching the video of the site.
In total, with "top", we are around 90%, of which 30-40% of GPUs that
do not know what it means (I have enabled hardware acceleration in
Firefox).
yes, I also have layers.acceleration.force-enabled enabled in Seamonkey, but
this only accelerates in-browser compositing, IIRC
But I have the same results watching the same video on Youtube:
https://www.youtube.com/watch?v=SzP2o2OJ90g
And the same results from watching any video on Youtube.
Does it turn out to you too?
Yeah, 200%+ of CPU according to top :}
Video in avc1 (h264), so may be Chrome (and/or Firefox on windows?) actually use
hw acceleration for *decoding* it, so effect not very notieceable ....
https://bugzilla.mozilla.org/show_bug.cgi?id=1210727
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