[mythtv-users] OverScan / Vertical alignment

[Michael T. Dean]

chris at cpr.homelinux.net wrote:

>>>Can any one suggest a way to move projected image down on TV-Out for 
>>>playback of recordings and videos?
>>>
>I think the crop/zoom/displace stuff in Myth only applies to what
>portion of the recording Myth will play, not where on the TV it will be
>played.
>
Exactly.  Which is why I said, "Completely ignoring the questions you 
asked.  Instead ..."

>  To move the actual output around on your TV you'd need to fuss
>with the modelines.  If I ever get my frontends working again (they're
>both borked) I'll try using the "use separate resolution for playback"
>switch and specify slightly different modelines so that the X gui
>shrinks a bit (the current modeline pushes the display too far to the
>right) and the playback window expands a bit.
>  
>
But the thing is the OP probably should NOT be trying to move the picture.

Assuming the GUI is properly centered on screen...

And that the video is playing in the same display mode as the GUI...

The video will play centered on screen...

If the video is playing "at the top" of the screen when centered, it 
means that the video includes a black bar at the bottom (which is quite 
common--especially when recording from STB's using Composite/S-Video).

Therefore, if the OP crops the black bar off the video, when played 
back--centered on screen--there is no reason to crop the video.

So, adjust overscan to get the GUI properly sized.  Then, use crop as 
appropriate to clip off any recorded black bars.

Note that this is all conjecture, which is why I said, "what about."

Mike

* This post is made from at least 95% recycled material.

(Still trying to decide if my less-wordy posts actually save time...  ;)