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Maintaining 16:9 aspect ratio on web with Flash
Hi All,
This is probably a pretty simple problem to resolve but it’s something that has been bugging us for a while now so any help is greatly appreciated.
We have started adding video to our websites and for a while were using a 4:3 display as most of our footage was actually 4:3. Everything was fine until we decided to go 16:9. (well… it wasn’t really but we were dishing out such low quality video that it pretty much looked crap anyway)
Even with low bitrates we notice considerable stutter (when in full screen mode) as the 16:9 video is being stretched to fill the whole screen and as a result, totally changing the videos original aspect ratio.
Is there any way to set flash to maintain the videos original aspect ratio when in full screen?
We have tried both h264 and FLV with square pixels so I presume this is a setting in the actual embad tag to the html?
I say adding an embed tag as we are using our service providers player which will be a bit of a headache to modify
Any advice is greatly appreciated.
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3 Replies
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It’s probably a good idea to use square pixels for web.
‘1/4 Screen’ 320×240 has a Storage Aspect Ratio (SAR) of 4:3. It can be set to ‘Fullscreen’ with a PAR of 0.9, or Wide with a PAR of 1.2.
But, for square pixel ‘fullscreen’ it should be set to 352×240.To get Widescreen with square pixels you could try…
864×480
720×400
432×240
320×178
As long as each dimension is divisible by 16, you should be good.Your embed tags control the dimensions of the frame. So, you should have video that displays as wide and set the embed tags to do the same.
So, yes – I agree with you. 🙂
Hope this helps..
Vince
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Thanks Vinc.
I’ve been trying a few setting out but unfortunately they all still look very choppy.
I’m wondering if there a better workflow for this as it could be that the problems arise when I’m scaling from 1080i to 864x480p.
Reason for us to export uncompressed avi to HDTV 1080i though, is that we need to make derivatives from the master to following formats.
1080i HDTV 1920×1080(for plasma TV)
DVD
Flash (for flash file we would like to offer as close to HD as possible without going to 720p -
I use Sorenson Spark for this – great app that alloow you to crop, size change aspect ratio, pixel size etc and then batch all to FLV. I also use the On2 VP6 codec which gives astonishing quality at very low bit rates and is optimised for streaming.
Hope this helps
Andrew Longhurst
The Art of MixIs it pixels or pixies that I’m having trouble with?
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