[mythtv-users] IPad and mythtv.

jedi jedi at mishnet.org
Thu May 27 20:33:32 UTC 2010


On Thu, May 27, 2010 at 10:07:31AM -0700, Scott Kidder wrote:
> On Thu, May 27, 2010 at 5:55 AM, Raymond Wagner <raymond at wagnerrp.com>wrote:
> 
> > On 5/27/2010 08:33, Phil Linttell wrote:
> >
> >> There's a whole variety of mobile devices and
> >> embedded TV front-ends these days, and it's simply not practical to do
> >> static transcoding of all recorded content to each potential target.
> >>
> >
> > Why not?  iPods, phones, PSPs, are all going to have similar capabilities
> > in terms of their hardware decoders (and none in terms of software
> > decoders).  TVs are likely able to playback anything you record directly.
> >  That means its a single transcode to support most devices available.  A
> > near term plan for MythTV by one of the devs is to rework the storage of
> > recordings, to allow multiple files to be stored against a single recording.
> >  This would significantly improve management of multiple transcodes.
> 
> 
>  It would be wonderful if a single encoding could be used with all devices,
> but I don't think it is realistically possible.  The bit-rates and

    Elgato seems to be taking this approach with the iPhone/iPad support.

    I figure we're just at a point where portable electronics just haven't
caught up to the new TV standards yet. 20+ years ago they used to have 
wristwatch devices that could handle (then) state of the art broadcast TV. 
National governments have scrambled the technology landscape and it will take 
awhile before things settle down again.

    Even now there's a small gap between stuff that's available and reasonably
complete but not widely deployed versus what's widely deployed.

> resolutions for small mobile devices (iPhone, Droid) are going to be
> different from those used with tablets (iPad) or your high-def television.
> On-the-fly transcoding is a very difficult feat.  I think that the best
> solution for now is to have a powerful MythTV back-end with a multi-core
> processor that can transcode recordings shortly after recording.
> 
> --Scott Kidder

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