[mythtv-users] OT: Aspect ratio broadcast rant

[Ian Evans]

On Feb 23, 2016 2:25 PM, "Devin Heitmueller" <dheitmueller at kernellabs.com>
wrote:
>
> > Except last night TSReader showed the signal as 480 X 480i 16:9 and this
> > morning it's 720 X 480i 4:3. Obviously a change was made but you can
tell by
> > the tone of their responses that the network guy is accepting the
station
> > guy's version of events.
>
> If you want to know what changed, you would probably need to compare
> the streams and look at the PAR and SAR as well as just the DAR (which
> is what I assume tsreader is reporting).  That said, the resolution
> changed so there's no disputing that they changed *something* between
> yesterday and today.  However it's possible that MythTV was improperly
> handling precedence for the three different aspect ratios (which his
> broadcast monitor was properly handling).
>
> I've definitely seen encoders putting out 480x480 video and had some
> headaches with VLC on that front a couple of years back.
>

Yeah Sar and Dar were both showing 16:9. MythTV wasn't involved in my
tests. I was sending them mpeg2 samples grabbed directly via wget from the
HDHomerun which passes through the signal as-is. The 16:9  was also on
display if I hooked the antenna directly to the LG which is set to Just
Scan.
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