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Post #861

new vogroll

By Adrian Miles | Adrian Miles <adrian.miles@...> | adrianlmiles
August 24, 2004 | Post #861 | Topic #861

hi all from my research blog (http://hypertext.rmit.edu.au/vog/vlog/vlog_archive/000419.html) code for embedding coming shortly. will make a prototype for version 3.x this weekend... the entry: Last week I made vogroll version 1.0. A QuickTime based movie that is the video equivalent of a blogroll. This first version consisted only of still images with a simple mouse in event which rolled over the image. Clicking would take you to that individual's videoblog. Well, it didn't take long to realise that what I'd done could just as easily be done by a basic image map, so really not a lot had been achieved by doing it QuickTime. Which leads us to Vogroll 2.0. Why a whole iteration? Because this one is now video. This time mousing in to each person's image will cause a brief 3 second clip to play. Mousing out restores the image. This works for each person in the vogroll. This makes the vogroll much more, well, voglike. The video that I've used I've just lifted from each individual's videoblog. The one I did I did specifically for this project, so I'm inviting those who want to use it to shoot and make available a three second clip, which is what I'll include. The total file is currently 260Kb. I reckon I can shave a few Kb off that, but the problem with a vogroll like this is that as more are added to it, the file size rapidly only becomes viable for broadband. Which brings me to vogroll 3.0, which is my job for next weekend. In this one I'll experiment with using child movies for each of the tracks. The advantage of this is that the vogroll movie will be a fraction of its current size (it needs to be 260Kb because it currently contains the 3 second samples from each vogger). It also means that the video content that any user wants to display can be as long as they wish. As long as the bit rate is really low, so that it will more or less stream on demand, then if you want a 5 minute intro to who you are on your blog, off you go. Bit rate rather than total file size is important here because the parent movie (what will actually be the vogroll that you embed in your videoblog) will be, say, 30 or so Kb, but as you mouse into a person's image it will retrieve whatever it is they want to say or present. This will be video, presumably off their own website (though I can host it here), which will appear within the vogroll movie only when someone mouses into it. So a request is made to receive this video, and it plays within the vogroll movie. So as long as the bit rate is low (and it is fast start) then it will start playing almost immediately (I'd expect within 3 seconds). Off course three seconds is an eternity, but such lag and delay for me is a condition of the network. Oh, another benefit, by building it like this we should be able to play nearly any video format inside of QuickTime, including avi as long as it is compressed with a QuickTime legible codec. cheers Adrian Miles ................................................................. hypertext.rmit || hypertext.rmit.edu.au/adrian interactive networked video || hypertext.rmit.edu.au/vog research blog || hypertext.rmit.edu.au/vog/vlog/