Comments on: Jumping to time offsets in HTML5 video

By: silvia

silvia — Fri, 03 Feb 2012 22:04:19 +0000

@maurizio I don’t know anyone working on it. But I know that it’s possible to integrate metavid features into wordpress.

By: maurizio

maurizio — Fri, 03 Feb 2012 15:08:17 +0000

Hi Silvia,
i’m not a developer …
do you think it’s possible to create a wordpress plugin with some of the features found on Metavid (annotation or trascription of video segment) or know someone working on this idea?.

By: silvia

silvia — Thu, 24 Nov 2011 02:02:39 +0000

You will never catch currentTime at an exact position. Instead you should register an event handler for ontimeupdate and check when video.currentTime > 30.

By: dever

dever — Wed, 23 Nov 2011 12:55:31 +0000

Hello,

i can jump to a fixed position in the video with video.currentTime = 20;

but how to jump after X seconds to another position? like: if(video.currentTime == 30){video.currentTime = 20;}

but this doesn’t work…

By: silvia

silvia — Thu, 18 Aug 2011 03:52:46 +0000

Hi Anthony, what JS library you use depends on your Web development preferences. I like to develop in Ruby on Rails with jquery. Then what JS library you add for doing the video is another decision to make. There are plenty of HTML5 player libraries available now. It all depends on your needs and preferences. Just do a google search for “html5 video javascript library”.

By: tone

tone — Wed, 17 Aug 2011 19:13:31 +0000

Hey,

I had a question. I am working on a web application, videos automatically get converted and placed in postgrese. The web application for user end will be able to view a video clip and edit multiple start-end points on same clip then save those edit clippings back in postgrese. Everything is complete but i am unsure what technology to use for this. I been looking into dojo/JS…. any suggestions?

much thanks,
anthony

By: silvia

silvia — Fri, 17 Jun 2011 02:29:55 +0000

@Poojan Web browsers try not to download everything. They use HTTP byte range requests to download only the bit of the media resource that the user needs to play back the selected interval. Only if the Web server does not support HTTP byte range requests will the browser have to revert to full file downloads.

As for the question about seeking – that depends on the buffering strategy of the browser. Browsers will always retain a certain buffer of the media resource – on mobile devices it may be a lot less (maybe a few minutes of content), while on desktops with loads of disk storage it may be the full file. Then, when seeking is required, the browser knows which parts they are buffering and will only download byte ranges that it doesn’t already have.

By: Poojan

Poojan — Thu, 16 Jun 2011 14:23:36 +0000

if I seek the video to some time, do I have to wait for the video to downlaod till that time? I have also read somewhere, that whenever ‘seek’ is called, the video is downloaded again. Is this true?

By: synchronized html5 audio and SVG graphics « Wsmithdesign's Blog

synchronized html5 audio and SVG graphics « Wsmithdesign's Blog — Fri, 08 Apr 2011 00:05:44 +0000

[...] the new audiotimeupdate event is not supported in all the browsers yet. However, as explained on Silvia Pfeiffer’s site it would be a better way to synchronize the lyrics in a pure HTML5 [...]

By: Flash, mobiles, Firefox and more: following on from the other day…

Flash, mobiles, Firefox and more: following on from the other day… — Sun, 13 Mar 2011 12:49:40 +0000

[...] then perform actions (e.g. scripts) when you hit those points?” with taking a quick look at this link I don’t see why not? You certainly seem to be able to access the current time using [...]