Displaying a good PAL image on TV-out? Possible with an All-In-Wonder?

  • Thread starter Thread starter Gilden Man
  • Start date Start date
G

Gilden Man

Hi,
I have a Matrox G400 which had excellent quality TV-out for watching
avi's, etc.
I do occasionally play games and have noticed the G400 struggling on
anything decent.
Thus this prompted me to test a Hercules 9800SE AIW. As this is supposed
to be a multimedia card with both TV in & out via the Rage Theater 200
chip I expected good things. The gaming is exceptionally fast, especially
when softmodded to a 9800 Pro.
However, when viewing an avi the picture looks stretched horizontally.
Using all the adjustments available I can do nothing to correct this
problem to my satisfaction. It seems that adjusting the vertical size of
the picture (which would fix this) does nothing. I can reduce the
horizontal width of the TV picture to correct the aspect ratio, but then I
am left with black gaps on both the left and right of the image.
I used to have a Matrox G400 which had excellent quality TV-out.
However, it had two problems; 1) lost the left and right edges of the
picture 2) very jerky playing NTSC clips. Both of these could be fixed
with the DivXG400 filter (http://www.tac.ee/~prr/videoutils/divxg400.html).
The latter problem requiring manual intervention for each change of format
which was tedious.
The DivXG400 fix above was a Directshow filter which effectively changed
the aspect ratio of the frame. Does any other filter exist which would
allow me to correct the poor frame format this AIW is generating? I've
tried the DivXG400 filter with the AIW, but this does not provide the
vertical frame size alteration that's needed.
Am I missing something here or is it just not possible to get correct
output on a PAL TV? Maybe it's also not possible on NTSC, but I'm assuming
that must be correct or how can they seriously call this a multimedia
card? I'm thinking they mightn't've bothered getting it right on PAL.
Many thanks.
 
Gilden Man said:
Hi,
I have a Matrox G400 which had excellent quality TV-out for watching
avi's, etc.
I do occasionally play games and have noticed the G400 struggling on
anything decent.
Thus this prompted me to test a Hercules 9800SE AIW. As this is supposed
to be a multimedia card with both TV in & out via the Rage Theater 200
chip I expected good things. The gaming is exceptionally fast, especially
when softmodded to a 9800 Pro.
However, when viewing an avi the picture looks stretched horizontally.
Using all the adjustments available I can do nothing to correct this
problem to my satisfaction. It seems that adjusting the vertical size of
the picture (which would fix this) does nothing. I can reduce the
horizontal width of the TV picture to correct the aspect ratio, but then I
am left with black gaps on both the left and right of the image.
I used to have a Matrox G400 which had excellent quality TV-out.
However, it had two problems; 1) lost the left and right edges of the
picture 2) very jerky playing NTSC clips. Both of these could be fixed
with the DivXG400 filter (http://www.tac.ee/~prr/videoutils/divxg400.html).
The latter problem requiring manual intervention for each change of format
which was tedious.
The DivXG400 fix above was a Directshow filter which effectively changed
the aspect ratio of the frame. Does any other filter exist which would
allow me to correct the poor frame format this AIW is generating? I've
tried the DivXG400 filter with the AIW, but this does not provide the
vertical frame size alteration that's needed.
Am I missing something here or is it just not possible to get correct
output on a PAL TV? Maybe it's also not possible on NTSC, but I'm assuming
that must be correct or how can they seriously call this a multimedia
card? I'm thinking they mightn't've bothered getting it right on PAL.
Click to expand...

I've not tried mine yet as it's in an 'entertainment' PC and I've
dumped my TV. However, I'll try it on another TV and let you
know the outcome in a day or two.
One thing occurs to me though - perhaps your TV is incorrectly
auto-switching to another display mode (eg 'widescreen'). If your
set has this capability, it'd be worth manually overriding it and trying
other modes (the TV in my lounge has about 8 different modes.)
HTH
 
Gilden said:
Hi,
I have a Matrox G400 which had excellent quality TV-out for watching
avi's, etc.
I do occasionally play games and have noticed the G400 struggling on
anything decent.
Thus this prompted me to test a Hercules 9800SE AIW. As this is
supposed
to be a multimedia card with both TV in & out via the Rage Theater 200
chip I expected good things. The gaming is exceptionally fast,
especially when softmodded to a 9800 Pro.
However, when viewing an avi the picture looks stretched
horizontally.
Using all the adjustments available I can do nothing to correct this
problem to my satisfaction. It seems that adjusting the vertical size
of the picture (which would fix this) does nothing. I can reduce the
horizontal width of the TV picture to correct the aspect ratio, but
then I am left with black gaps on both the left and right of the
image.
I used to have a Matrox G400 which had excellent quality TV-out.
However, it had two problems; 1) lost the left and right edges of the
picture 2) very jerky playing NTSC clips. Both of these could be fixed
with the DivXG400 filter
(http://www.tac.ee/~prr/videoutils/divxg400.html). The latter problem
requiring manual intervention for each change of format which was
tedious.
The DivXG400 fix above was a Directshow filter which effectively
changed
the aspect ratio of the frame. Does any other filter exist which would
allow me to correct the poor frame format this AIW is generating? I've
tried the DivXG400 filter with the AIW, but this does not provide the
vertical frame size alteration that's needed.
Am I missing something here or is it just not possible to get
correct
output on a PAL TV? Maybe it's also not possible on NTSC, but I'm
assuming that must be correct or how can they seriously call this a
multimedia card? I'm thinking they mightn't've bothered getting it
right on PAL.
Many thanks.
Click to expand...

FWIW, I've never been happy with the TV-out on either of my ATI cards
(Radeon 8500LE and Rage Fury Pro). I never seem to be able to stretch the
vertical aspect of the picture across the whole of the screen. As soon as
the pic reaches a certain point, it just disappears behind a black
border. I also tend to assume they just never bothered to make them work
properly for PAL displays.


Dave.
 
I have pretty good PAL tv-out with Theater Mode and overscan enabled.
I'm using Catalyst 3.9. I only use tv-out for watching DivX/XviD movies.
I have noticed that for good PAL tv-out the resolution needs to be
800x600. 640x480 is really bad. Unfortunately, if your avi file has a
lower resolution than 640x480 (which is the case for nearly all DivX
movies) Theater Mode will automatically default to 640x480. That's fine
for NTSC tv-out but not for PAL.

Solution: use ffdshow-alpha to resize the movie on the fly (during
playback) to 800x??? (??? depends on the aspect ratio of the movie).
Then Theater Mode automatically uses 800x600 for PAL tv-out and it looks
fine. With overscan enabled in the tv-out properties I don't get any
black borders on my tv as long as I resize the movie to the full 800x600
resolution. Of course, most movies are widescreen, so I still get black
bars in that case, but this is what I do if I don't want any black bars:

I have a 16:9 tv so I crop the movie left and right (also on the fly
with ffdshow) to a 16:9 aspect ratio. Then I resize it (again with
ffdshow) to 800x600 which makes it anamorphic 16:9 (full screen but
looking squashed on a 4:3 tv). Then I manually select widescreen mode on
my tv and I get a full screen 16:9 picture (no black borders at all and
the correct aspect ratio).

In the Clone Mode Options you can check 'Full screen' and '16:9
(Widescreen)' but I haven't bothered because in my case ffdshow
does that kind of resizing already.

So it's possible to have borderless PAL tv-out with a Radeon card and
Catalyst 3.9 but you have to enable Overscan in the tv-out settings
(TV Properties -> Adjustments) and the resolution of your video has
to be 800x600. Well, it works for me anyway. YMMV.

http://sourceforge.net/projects/ffdshow/
http://prdownloads.sourceforge.net/ffdshow/ffdshow-20030523.exe
 
Solution: use ffdshow-alpha to resize the movie on the fly (during
playback) to 800x??? (??? depends on the aspect ratio of the movie).
Then Theater Mode automatically uses 800x600 for PAL tv-out and it looks
fine. With overscan enabled in the tv-out properties I don't get any
black borders on my tv as long as I resize the movie to the full 800x600
resolution. Of course, most movies are widescreen, so I still get black
bars in that case, but this is what I do if I don't want any black bars:
Click to expand...

Sir, you're a scholar. I have Catalyst 3.9 and have had Gordian Knot with
it's CodecPack installed for sometime. That includes
ffdshow-alpha-2003-05-23. I didn't know what it could do, until now.
That's exactly the kind of filter I was hinting at in my post. Of course
I didn't realise that the 640x480 would have such faults, where the
800x600 is working as expected. Is the 1024x768 PAL mode going to be any
better? I guess that's a no, or you'd be using it already? :)
So far that has allowed me to view everything in the correct aspect
ratio. That's even for subtitled movies when DirectVobSub is autoloading
and expanding the image to 4:3 so it can put the subtitles in the black
border below the picture.
Although, I just told ffdshow-alpha to rezise everything to 800x600. You
seem to be suggesting I should alter that for each movie?
The quality even looks good. Seems to be the level of my G400, as I
remember it.
I have a 16:9 tv so I crop the movie left and right (also on the fly
with ffdshow) to a 16:9 aspect ratio. Then I resize it (again with
ffdshow) to 800x600 which makes it anamorphic 16:9 (full screen but
looking squashed on a 4:3 tv). Then I manually select widescreen mode on
my tv and I get a full screen 16:9 picture (no black borders at all and
the correct aspect ratio).
Click to expand...

I still have a plain 4:3 TV with no fancy modes :( It's good to know that
if I do get a 16:9 TV, that this card will display a good widescreen
picture (with the help of ffdshow-alpha :).
In the Clone Mode Options you can check 'Full screen' and '16:9
(Widescreen)' but I haven't bothered because in my case ffdshow
does that kind of resizing already.
Click to expand...

Does the Catalyst 16:9 button actually do anything? It makes no change to
the picture at all for me. I know I've got a 4:3 TV, but this button on
the G400 drivers used to change the aspect ratio accordingly.
So it's possible to have borderless PAL tv-out with a Radeon card and
Catalyst 3.9 but you have to enable Overscan in the tv-out settings
(TV Properties -> Adjustments) and the resolution of your video has
to be 800x600. Well, it works for me anyway. YMMV.
Click to expand...

I've tried overscan, but I'm not sure I see the benefit. Ok I can fill the
screen, but I also lose some of the image?
http://sourceforge.net/projects/ffdshow/
http://prdownloads.sourceforge.net/ffdshow/ffdshow-20030523.exe
Click to expand...

Now the final part is trying to stop the audible interference this card
creates on my Midiman Audiophile 2496. It's rather annoying wearing
headphones now. Various low level white noise which varies according to
whatever is displayed. Open a white window and hear an increase in noise.
Scroll an Explorer window and hear a short noise reminiscent of a chamois
leather on a window.
Don't suppose you have another bright idea for that one? :)
Cheers.
 
One thing occurs to me though - perhaps your TV is incorrectly
auto-switching to another display mode (eg 'widescreen'). If your
set has this capability, it'd be worth manually overriding it and trying
other modes (the TV in my lounge has about 8 different modes.)
Click to expand...

The beauty of my TV is it's simplicity. It's an 11 year old 4:3 which
doesn't have all these fancy modes. It has S-video in and just the one
mode, 4:3 :)
 
Gilden Man wrote:
FWIW, I've never been happy with the TV-out on either of my ATI cards
(Radeon 8500LE and Rage Fury Pro).
Click to expand...

They do seem rather old cards though? I imagine the Theater chipsets,
especially the 2nd generation Theater 200 should have far superior quality
TV components?
I never seem to be able to stretch the
vertical aspect of the picture across the whole of the screen. As soon as
the pic reaches a certain point, it just disappears behind a black
border.
Click to expand...

I was having a problem with performing any alteration at all to the
vertical aspect of image. People looked "too fat" so the only method I had
to fix this was to reduce the horizontal aspect of the image, as
increasing the vertical did nothing.
I also tend to assume they just never bothered to make them work
properly for PAL displays.
Click to expand...

Well I thought so too. But another poster has enlightened me to the fact
that the 640x480 PAL mode is garbage, but the 800x600 PAL mode, at least,
seems fine.
 
Although, I just told ffdshow-alpha to rezise everything to 800x600. You
seem to be suggesting I should alter that for each movie?
Click to expand...

800x600 is 4:3. If you resize a widescreen movie (640x272 for example)
to 600x800 the aspect ratio will be wrong.
Does the Catalyst 16:9 button actually do anything? It makes no change to
the picture at all for me. I know I've got a 4:3 TV, but this button on
the G400 drivers used to change the aspect ratio accordingly.
Click to expand...

The 16:9 button should make your video 'anamorphic' so it will look
correct on a 16:9 tv in widescreen mode, but I've never really used it,
because ffdshow does that for me.
I've tried overscan, but I'm not sure I see the benefit. Ok I can fill the
screen, but I also lose some of the image?
Click to expand...

Yes, I prefer to lose a little bit of the image instead of having the
movie surrounded by black bars, but on the TV Properties tab you can use
the Screen Position and Screen Size arrows (instead of Overscan) to get
it exactly right, I suppose.
 
Does the Catalyst 16:9 button actually do anything? It makes no change to
the picture at all for me. I know I've got a 4:3 TV, but this button on
the G400 drivers used to change the aspect ratio accordingly.
Click to expand...
Atleast for me it does absolutely nothing. I'm using R9600 with 28" 16:9 TV
in Theater Mode, and the image on the TV-screen is ALWAYS 4:3 despite the
setting in clone mode options. This is not a big problem since my TV has
"letterbox" zoom wich cuts from top and bottom to get from 4:3 image to
16:9. This way I can indeed get full screen 16:9, but unfortunately lose
vertical resolution (doesn't bother me that much since I cannot see any
difference in image quality). Also the area being cut is always only black
(unless I'm viewing a 4:3 aspect videofile, but then I wouldn't be able to
use full widescreen anyway) so I'm not losing any image information in the
process. Hopefully ATI will someday make drivers that fully support
widescreen TV's.
 
erratic said:
800x600 is 4:3. If you resize a widescreen movie (640x272 for example)
to 600x800 the aspect ratio will be wrong.

snip
Click to expand...

If you set ffdshow to resize to 800x600 and then select the keep original
aspect ratio in the aspect ratio section it will produce 800x600 output but
will retain the source AR. It adds black bars top and bottom to pad the
height to 600.
 
800x600 is 4:3. If you resize a widescreen movie (640x272 for example)
to 600x800 the aspect ratio will be wrong.
Click to expand...

As another poster has mentioned, I just let it and the defaults and it
maintained the aspect ratio while making it 800x600. Maybe you old timers
are used to that option not being there, or it not being defaulted for
you. Me, I've come into this software late, so I've not had to deal with
as many foibles as you :)
The 16:9 button should make your video 'anamorphic' so it will look
correct on a 16:9 tv in widescreen mode, but I've never really used it,
because ffdshow does that for me.
Click to expand...

You'll probably find it does nothing. The G400 button provided the
appropriate unwatchable distortion on my 4:3 TV, that looked like it'd be
correct on a 16:9 TV. But, the Catalyst button does nothing.
Yes, I prefer to lose a little bit of the image instead of having the
movie surrounded by black bars, but on the TV Properties tab you can use
the Screen Position and Screen Size arrows (instead of Overscan) to get
it exactly right, I suppose.
Click to expand...

We like different things then. I'd prefer to see the whole image. A little
black doesn't bother me. Horses for courses, eh? :)
 
If you set ffdshow to resize to 800x600 and then select the keep original
aspect ratio in the aspect ratio section it will produce 800x600 output but
will retain the source AR. It adds black bars top and bottom to pad the
height to 600.
Click to expand...

Unfortunately the 'keep original aspect ratio' setting doesn't work on
my system. I've even reinstalled ffdshow, but to no avail. 'Set aspect
ratio manually' does work, but for some reason 'keep original aspect
ratio' doesn't add black bars, it works exactly like 'no aspect ratio
correction' on my system. Don't know why.
 
You'll probably find it does nothing. The G400 button provided the
appropriate unwatchable distortion on my 4:3 TV, that looked like it'd be
correct on a 16:9 TV. But, the Catalyst button does nothing.
Click to expand...

I just tried it and you're right, it doesn't seem to do anything.
 
Hopefully ATI will someday make drivers that fully support widescreen TV's.
Click to expand...

The drivers should also support WSS (widescreen signalling) so your
TV switches to 16:9 automatically, just like when you're playing an
anamorphic DVD.
 
That would be nice too, but I'm not sure if that is possible with simple
composite or s-video connection...
 
I have the Matrox G450. ATI AIW8500DV and a Nvidia Ti4200. I have measured
the TV out performance with NTSC on all three with Pro test equipment. The
Matrox is FAR better than the Nvidia which is far better than the ATI.
Neither the ATI or Nvidia will play full screen on TV out with standard
drivers, I have not tried TVTools or Power Strip yet. The ATI has about 80%
loss at 5MHz and the Nvidia is about 60%, the Matrox is only about 10% loss
at 5MHz, so it has the sharpest display when playing video files or DVD
disks. The ATI also has artifacts when playing DVD and video files to the
TV out, jagged diagonal lines in the playback, the Nvidia does not do this
and the Matrox is very clean with excellent video playback to the TV out.
So you have to decide do you want faster gaming play or the best TV out.

Mike T Video designer, 40 years
 
I have the Matrox G450. ATI AIW8500DV and a Nvidia Ti4200. I have measured
the TV out performance with NTSC on all three with Pro test equipment. The
Matrox is FAR better than the Nvidia which is far better than the ATI.
Neither the ATI or Nvidia will play full screen on TV out with standard
drivers, I have not tried TVTools or Power Strip yet.
Click to expand...

My AIW9800SE has no problem filling the entire screen in Overscan mode. I
prefer to keep it off as the black border around the picture is pretty
small and you can see the entire image that way.
The ATI has about 80%
loss at 5MHz and the Nvidia is about 60%, the Matrox is only about 10% loss
at 5MHz, so it has the sharpest display when playing video files or DVD
disks. The ATI also has artifacts when playing DVD and video files to the
TV out, jagged diagonal lines in the playback, the Nvidia does not do this
and the Matrox is very clean with excellent video playback to the TV out.
So you have to decide do you want faster gaming play or the best TV out.
Click to expand...

Thanks for the comparison, Mike. However, the ATI card you describe there
is not really comparable to a AIW 9800SE. I appreciate you can only test
the cards you have, but surely the years between the realease of these
cards and especially the addition of the new Rage Theater 200 TV processor
must make the AIW8500 results of little relevance to an AIW9800SE?
Did the 8500 have the previous incarnation of the Rage Theater chip
on-board or was it even pre that?
However, we must also remember that we are talking about PAL here. My
G400 was pretty awful without the DivXG400 filter to correct the PAL image
problems. That padded the left and right of the image with black bars so
you didn't lose some of the picture and also prevented the unwatchable
event of an NTSC avi.
All in all, once I'd recieved the advice from erratic, that the PAL
640x480 mode is shite, this card seems great in the PAL 800x600 mode.
Visually it looks the same as the G400 to me, but much more flexible.
So with this card you get better TV functions than the G400, with very
fast gaming. My only problem now is working out how to stop the audible
interference with my Audiophile 2496.
Cheers.
 
Unfortunately the 'keep original aspect ratio' setting doesn't work on
my system. I've even reinstalled ffdshow, but to no avail.
Click to expand...

This is probably a bug in the latest 'unofficial' build
(ffdshow-20031128.exe). It was reported by 'dimzon' in Doom9's forum.
http://forum.doom9.org/showthread.php?&postid=409542#post409542
I quote:

| Bug found at resize feature!

| Seems like FFDShow does'nt keep original aspect ratio!
| When I use 20030523 bild it work's fine!
| I have 720*304 video
| I set resize to 800*600 (my VideoCard does'nt work properly when width not mod 32)
| Under 20030523 i got nice LETTERBOXED (black zones ot top and bottom) image with
| width scaled to 800 and video height is scaled proportionaly original aspect ratio
| (no aspect ratio changed)

| Under last athos bild i got scaled to 800*600 image with aspect ratio changed
| to 4:3 (no letterboxing)

| sorry for my poor english
 
Back
Top