[mythtv] DVB aspect ratio

[Simon Watson]

I'm using Myth with a DVB-T card (Nebula DigiTV) here in the UK, and have
encountered an annoying issue to do with the aspect ratio used by the
broadcasters.

Many of the channels (especially BBC1 & BBC2) tend to broadcast in widescreen
(16:9, 704x576) which I'm viewing in Myth on a standard 4:3 TV. By default,
Myth displays the picture in a vertical 'letter box' format with black borders
top and bottom. This is ok, but a lot of the video broadcast within the
widescreen format is actually 4:3 (news clips, sporting events, basically most
footage not originated by the broadcaster) which means that the broadcaster
horizontally letter boxes the picture with black borders to the left and right.
So, I'm often left watching a tiny 4:3 rectangle in the middle of the screen
with large amounts of black space on all sides - not great.

So, is it possible for Myth to have an option to scale the central 4:3
rectangle of a widescreen signal to full screen? I believe this is what a lot
of set top boxes actually do. 

Apologies if this feature already exists but I couldn't find anything relating
to it.

Simon.


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