[mythtv-users] Dumb question about VDPAU

Brian Wood beww at beww.org
Mon Mar 2 01:47:14 UTC 2009


On Sunday 01 March 2009 18:17:47 Robert McNamara wrote:
> On Sun, Mar 1, 2009 at 5:13 PM, Ramon Redondo <malinon at gmail.com> wrote:
> > So I still haven't found anything that says "yes, MPEG4 type NUV files
> > generated from the MythTV software encoder will be decoded and
> > deinterlaced by VDPAU.
>
> No, they do not.  Myth's software encoded MPEG-4 files are MPEG-4 part
> 2 (ASP, of which xvid and divx are commonly recognized
> implementations).  VDPAU supports only MPEG-4 Part 10 (h.264).

To call MPEG-4 a "standard" is like calling "high" a specific altitude, 
or "long" a length.

It's a blueprint for confusion, and I think we'd all be better off if the 
term "MPEG-4" was never used again, without more specific information.

DiVX and the like don't help, by trying to create "branded" versions of what 
is supposed to be a standard.

But it looks like VDPAU won't help with Myth-created "mpeg-4" files. I assume 
VDPAU will not deal with RTJpeg either, so if you want to get VDPAU help in 
playing Myth-encoded files, the options would seem to be transcoding it or 
coding up a patch to record some other way.

-- 
beww
beww at beww.org


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