[mythtv-users] "zoom" and/or crop video during recording

Joseph A. Caputo jcaputo1 at comcast.net
Mon Aug 16 11:48:04 EDT 2004

On Saturday 14 August 2004 15:28, Chris Petersen wrote:
> I know about the overscan/underscan settings for display, but is
> there a way to zoom the video BEFORE recording?  I'd like some way to
> get rid of those black bars on the sides of the screen that
> broadcaster use to compensate for tv's natural overscan.
> Also, I have a feature request.  In order to boost quality a little
> for recording, it would be cool if there was a recording selection to
> "crop" off the top/bottom x % of the show, and have mythtv replace it
> with its own self-drawn black bars (we'd of course have manually
> figure out how much during live-tv watching of a similar show).  This
> would be great for shows that are broadcast in letterbox or
> widescreen mode (like stargate)

Have you looked at the 'crop' filter?  It won't add the black bars 
(that's done at playback time), but it can crop any bars that the 
broadcaster adds (if you know the size).

Unfortunately, the recording filters are per-channel, so you'd have to 
want that behavior for all shows on a channel.


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