Prog scan DVD playback on PS2
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marconelly!
Veteran
I was under impression that progressive decoding of the DVD film is very trivial and can't be 'better' or 'worse' as the progressive stream is basically stored on the DVD (abeit in the non-straightforward format)
I don't have a 5000x so I am not sure. I think it will be like other Sony's progressive DVD player.
Normally, there are flags in the MPEG-2 stream that marks it as 30frames/s (many Japanese MTV DVDs are 30frames/s), 24frames/s (film based DVDs) or 60 fields/s video (sports and some TV based shows).
Some DVDs do have a wrong flag (mostly 30 frames/s sources, flagged as video sources).
When the flags are right, 24 and 30 frames/s sources are straight forward (except the bad edits), only 60fields/s sources really need to be deinterlaced, and I think it will be a little bit of an adaptive algorithm than plain bob/weave.
Normally, there are flags in the MPEG-2 stream that marks it as 30frames/s (many Japanese MTV DVDs are 30frames/s), 24frames/s (film based DVDs) or 60 fields/s video (sports and some TV based shows).
Some DVDs do have a wrong flag (mostly 30 frames/s sources, flagged as video sources).
When the flags are right, 24 and 30 frames/s sources are straight forward (except the bad edits), only 60fields/s sources really need to be deinterlaced, and I think it will be a little bit of an adaptive algorithm than plain bob/weave.
I guess it's software based, and it only works with NTSC DVDs. If you go on Sony's website you'll be able to download the manual, where you can check the support and potential issues. That's what i did before getting a new PS2, and thank god i did that because it's a shamble for us European consumers.
(This is for all PAL users out there)
I posted this some time ago, basically PAL PS2s will only display pro-scan if the DVD is NTSC. That would mean we'd have to import DVDs. The thing is, the console is NOT multi-region. Therefore, unless you have a DVD Region X at hand (which by the way is not recognised by Sony), you won't be able to watch DVDs in pro-scan.
The option to switch pro-scan ON will only appear when a NTSC DVD is inserted.
(This is for all PAL users out there)
I posted this some time ago, basically PAL PS2s will only display pro-scan if the DVD is NTSC. That would mean we'd have to import DVDs. The thing is, the console is NOT multi-region. Therefore, unless you have a DVD Region X at hand (which by the way is not recognised by Sony), you won't be able to watch DVDs in pro-scan.
The option to switch pro-scan ON will only appear when a NTSC DVD is inserted.
hey69 said:
I have a LCD TV, and it cost me "a bit"... Let's just say it cost me a bit less than my PS2 (at launch) and my surround sound system put together...
hey69 said:can you send that truck where it fell of to me please
Its a good TV, the only thing is that it only has VGA inputs (apart from of course S-video and SCART and all those EXCEPT Component) so the only way to get PS2 pro-scan is through the Blaze VGA Adapter, since the Scart and the S-video inputs can't carry a pro-scan signal.
I'm a little confused here.
First, I was under impression that ProScan playback was just that - playing the video on proScan device? Aside for optional deinterlacing, there isn't exactly a whole lot to do in "software" or "hardware"
Second...
As far as I understand ProScan playback, in case of PScan source data, the entire new "process" would consist of switching the display mode at the start
In case of an interlaced source, you would need deinterlacing postprocess, which would be an additonal task for EE and GS - so that addition would also be software.
As a point of interest, VUs can also be used to replace part of IPU function (specifically color space conversion) with a higher precision process. I don't know if Sony DVD driver does that or not however.
First, I was under impression that ProScan playback was just that - playing the video on proScan device? Aside for optional deinterlacing, there isn't exactly a whole lot to do in "software" or "hardware"
Second...
By strict definition PS2 DVD playback is never in hardware to begin with. MPEG2 Bitstreams are decoded by IPU, but all the housekeeping (reading and passing the data around the system, various postprocessing like motion compensation etc.) is shared between programs running on IOP and EE respectively.
As far as I understand ProScan playback, in case of PScan source data, the entire new "process" would consist of switching the display mode at the start
In case of an interlaced source, you would need deinterlacing postprocess, which would be an additonal task for EE and GS - so that addition would also be software.
As a point of interest, VUs can also be used to replace part of IPU function (specifically color space conversion) with a higher precision process. I don't know if Sony DVD driver does that or not however.
Well what that means for us PAL gamers is that no one gives a shit of what we get here, cause if it werent for products that are not recognised by Sony (such as DVD Region X and the Blaze VGA Adaptor), we wouldn't get Pscan DVD playback at all.
I hate being in Europe.
I hate being in Europe.
Nick Laslett
Regular
If you want to learn all about Prog Scan visit this website:
http://www.hometheaterhifi.com/main.html
I can assure you that there is nothing simple about de-interlacing a film on DVD, and please don't mention the chroma upsampling error![/url]
http://www.hometheaterhifi.com/main.html
I can assure you that there is nothing simple about de-interlacing a film on DVD, and please don't mention the chroma upsampling error![/url]
maskrider said:
I'm referring to just a temporary issue, where say something is moving horizontally, the even/odd scanlines will desync briefly until the image stabilises. Normally only happens on things like the "20th Century Fox" logo... although it was pretty bad in the Pirates of the Caribbean Blooper Reel.
Tagrineth said:
I am not sure, but the DVD player is embedded in the recent versions of PS2.
Progressive scan output is only available with 5000x, not sure if they had added a hardware or use the PS2 to deinterlace, if it is in software, I don't think the PS2 will be fast enough to do the job decently.
Thanks for the replies guys.
I was under the impression that all DVDs were encoded interlaced in MPEG2, and a 'prog scan' DVD player had the hardware/software to de-interlace/reconstruct the images.
This came up while doing some research on AVSforums about Samsung's DLP TVs. Supposedly the de-interlacing hardware/software on those TVs are so good, the virtual consensus on forum is to use a non-prog scan DVD player, as the TV can produce a better picture than a prog-scan DVD player can.
I was under the impression that all DVDs were encoded interlaced in MPEG2, and a 'prog scan' DVD player had the hardware/software to de-interlace/reconstruct the images.
This came up while doing some research on AVSforums about Samsung's DLP TVs. Supposedly the de-interlacing hardware/software on those TVs are so good, the virtual consensus on forum is to use a non-prog scan DVD player, as the TV can produce a better picture than a prog-scan DVD player can.
