[mythtv-users] 16:9 playback of 16:9 letterboxed recordings

Ivan Kowalenko ivan.kowalenko at gmail.com
Tue Feb 20 16:27:20 UTC 2007


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On Feb 20, 2007, at 08.33, Kevin Slater wrote:

> It seems to me that often broadcasters do a poor job of centering and
> maintaining aspect ratio when inserting letterbox/pillarbox bars,  
> but I
> haven't done any real testing (nor have I had access to their source
> material to allow proper testing).  So, I may be off my rocker (or my
> Myth box or my TV may be improperly configured, making it look like a
> problem in the video I receive from the broadcaster).
>
> What you might be seeing is broadcasters trying to 'cheat' on their  
> production of both SD and HD feeds of the same show. I saw this  
> last night on some station. While watching a show in SD, there was  
> a degree of letterboxing, but it wasn't enough to be 16:9 on the  
> display. I suspect they were just downcasting the HD 16:9 feed and  
> dropping some of either edge of the picture to mostly fit on a SD  
> 4:3 format. Hard to describe in words, but when you see it you know  
> what I mean.

You mean like this:
http://en.wikipedia.org/wiki/14:9
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