[Intel-gfx] AVI infoframes: default aspect ratio/VIC for CEA modes

[Damien Lespiau]

On Thu, Nov 21, 2013 at 07:19:45PM +0200, Ville Syrjälä wrote:
> > > It seems natural to extend those flags to describe the picture aspect ratio (that
> > > why dri-devel is in Cc., touching core DRM).
> > 
> > To start with we can use a single bit in drm_display_mode->flags to distinguish 16:9 vs 4:3.
> 
> I must admit I haven't really looked into the matter, but do we actually
> need any mode bits? Would it be enoguh to just have a property that
> allows the user to specify the picture aspect ratio?

Well, that's a good question! the picture aspect ratio is attached to
modes in CEA-861, but it could be a good idea to have an orthogonal
picture a-r property on the crtc.

Not quite sure at this point, needs a bit more understanding of the
problem.

-- 
Damien