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Thread Tools | Display Modes |
#1
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Displaying a good PAL image on TV-out? Possible with an All-In-Wonder?
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. |
#2
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"Gilden Man" wrote in message
k... 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. 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 -- Rob |
#3
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Gilden Man wrote:
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. 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. |
#4
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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/f...w-20030523.exe |
#5
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In article , erratic wrote:
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: 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). 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. 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. 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/f...w-20030523.exe 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. |
#6
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In article , Rob Hemmings wrote:
"Gilden Man" wrote in message 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.) 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 |
#7
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On 10 Dec 2003 18:10:06 GMT, Gilden Man wrote:
Although, I just told ffdshow-alpha to rezise everything to 800x600. You seem to be suggesting I should alter that for each movie? 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. 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? 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. |
#8
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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. 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. |
#9
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"erratic" wrote in message ... On 10 Dec 2003 18:10:06 GMT, Gilden Man wrote: Although, I just told ffdshow-alpha to rezise everything to 800x600. You seem to be suggesting I should alter that for each movie? 800x600 is 4:3. If you resize a widescreen movie (640x272 for example) to 600x800 the aspect ratio will be wrong. snip 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. |
#10
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In article , erratic wrote:
On 10 Dec 2003 18:10:06 GMT, Gilden Man wrote: Although, I just told ffdshow-alpha to rezise everything to 800x600. You seem to be suggesting I should alter that for each movie? 800x600 is 4:3. If you resize a widescreen movie (640x272 for example) to 600x800 the aspect ratio will be wrong. 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 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. 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. 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. 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? 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. We like different things then. I'd prefer to see the whole image. A little black doesn't bother me. Horses for courses, eh? |
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