[mythtv-users] app for determine HD resolution?

[Brad Templeton]

On Mon, Apr 04, 2005 at 07:38:19AM -0700, Alan Hagge wrote:
> Does anybody know of an app which will do any or all of:
> 
>    * Show the resolution (H x V or 480p, 720p, 1080i, 1080p, etc.) of a
>      specified dvb channel (ATSC)
>    * Show the resolution of a specified .nuv file?
>    * Show the bandwidth (bps) of a given ATSC channel
> 
> I'm trying to determine just what my system can playback without 
> stutter.  It seems to do OK on some HD content, but not others, and I 
> suspect the difference is either the format of the channel or possibly 
> the number of subchannels (ie. the total bandwidth) on a channel.

Well, if nothing else, mplayer dumps out these parameters (well, not
the bandwidth) when you play a video file, and you can use mplayer
directly on /dev/video devices, though it doesn't de-mux atsc multi-streams.

ATSC channels in theory all run about 19 megabits but the sub-channels
of course are different and I presume that's what you are looking for
when you want to know bandwidth?

What would be nicer than the above, if anybody has seen it, would be
a perl library or similar to extract these parameters from mpeg-ts files.