[mythtv] Ticket #4872: Detect if video is letterboxed and switch to corect fill mode

[Mårten Bohlin]

On Wed, Mar 19, 2008 at 12:20 PM, Doug Larrick <doug at parkercat.org> wrote:
> Mårten Bohlin wrote:
>  > Yes "2" means "XVMC_IDCT_MPEG2". Unfortunately I do not know how all
>  > that stuff works.
>  >
>  > Could anybody tell me if it is possible to analyze a decoded frame
>  > when you run XvMC? And if that is possible where should I look for the
>  > decoded frame?
>
>  No, I'm afraid MythTV has no access to the decoded frame when using
>  XvMC.  The decoding takes place on the video card into its own memory.
>  For the same reason, the deinterlacers available when using XvMC are
>  severely limited.
>
>  -Doug
>

OK. So this is another argument that this detection should be done
together with commercial detection when possible.

But I do not have the time to do that now.

Mårten