Re: WSS support now full-featured; testers needed

On Monday 27 October 2008, Nicolas Boullis wrote:
> On Sun, Oct 26, 2008 at 05:45:05PM +0200, Ville Skyttä wrote:

> Just curious anyway, isn't there a "normal" mode were the TV follows the
> modes specified with WSS? Or does WSS switches the TV from 16:9 to 4:3
> and back?

I guess the 16:9 mode is what you're after with "normal".

> > > Hmmm... Here I'm not sure I understand you correctly... Does this mean
> > > you like broken aspect ratio: 4:3 images stretched horizontally to
> > > 16:9?
> >
> > No, I mean that in my current setup which I described in my previous
> > mail,
>
> You mean with your patched vdr-dxr3 plugin, and using the
> em8300-scale-n-crop branch?

Yes, those, plus the the aspect ratio script changed to touch only
encoder/wss.  (But as I noted in a later mail, this did not work after a
reboot any more :()

> As for the "stretched" thing, I'd rather check whether the squares are
> actually square. I might make a few MPEG2 streams that display squares
> both in 4:3 and in 16:9, if you're willing to test thems. (And using a
> ruler would help; it tends to be much more accurate than our eyes and
> brain.)

Sure, I can test them.

> > VDR set to 16:9, tv_aspect 16:9, script sets only WSS:
> > Consistent results, both 16:9 and 4:3 work correctly
>
> I really fail to understand how this can work. Does WSS have an effect
> when your TV is set to 16:9; doesn't it force your TV to 16:9 no matter
> what WSS says?

No, it obeys WSS (I suppose).  16:9 video is shown full screen, as is.  4:3
video is shown in the middle of the screen, full height, reduced width, black
bars on left and right.  But this result might be subject to inconsistency as
well, as said, it started behaving oddly after a reboot.

> Does it make a difference if you simply disable the
> script?

I haven't tried that, will do when I find time to try out again.

> The hardware/current firmware only know 2 display modes: full screen
> and vertically compressed with black bars on the top and bottom 1/8s of
> the screen. [...]

Thanks a bunch for the lengthy explanation, I'm sure it'll be helpful when I
can find the time to digest it better :)

> fullscreen mode (misnamed 4:3)

Hmm.  Do you mean that it would be more accurate to call
EM8300_ASPECTRATIO_4_3 for example EM8300_$something_FULLSCREEN (ditto other
EM8300_ASPECTRATIO_* renamed to something similarly more descriptive)?  If
yes, that would have saved me some confusion...

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