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Well, I'm definitely noticing lag compared to watching the same clip (converted to WMV) on an Xbox 360 at 720p on the same TV and same sound system. I haven't tried it in 480i/p or 1080i on that TV, but on another TV running at 480i (it's not a hi-def set), there was no noticeable lag.
Originally Posted by pitrz
Like I said, I'll test it more later this week.
Well i am not sure if comparing ps2 decoding performance to Xbox 360 is even fair.
But anyway, PM me and give me the specs(width/height/codec/bitrate) of the video you used and you found laggy. TV system setting shouldn't have any effect at decoding performance. Also 1080i gives smoother picture framerate than 720p.
If you are willing to convert your stuff i have one recommendation for you. SMS can play almost arbitrary resolution mpeg/mpeg2 completely smooth. The biggest resolution it can take is 1024 width, but you will get picture corruption because of not enought vram. (!Please don't report this as a bug at this time!).
So, for me, to get the best image quality in SMS .. i download xvid hrhd rips from the internet, these are half 1080i resolution, they do stutter from time to time, but the picture is just superb.
And if i have the time... i reencode hd movies i want to watch into mpeg2 using custom quant matrix to half the horizontal resolution i have set in 1080i mode in SMS. This gives stunning pictures with totally smooth pictures (because mpeg decoding is less demanding then xvid/divx/mpeg4) If somebody wants to know how to do this, i can write a quick tutorial.
One last thing to note is that core changes are EEUG's domain, and he deserves a summer break after all he has done, so plz people don't push it .)
I can try to fix some things, but usually i need at least some kind of assistance of the GURU alias EEUG. .)
So 1080i is less intensive than 720p? I'll have to remember that for when I get a clip that's handling poorly in 720p.
As far as the comparison goes, I was just saying that it isn't a problem with the source. When the exact file is converted into WMV and played on a 360 at the same resolution it: 1. Looks about the same, quality wise (great job on that, by the way), and 2. It doesn't have the lag present when playing the original clip in 720p on PS2 and on the same TV. Yes, I could use the 360, but converting that crap takes so freaking long, and honestly, SMS (with 720p) looks just as good if not better, and it's powerful enough to play the encodes for this specific series (Deathnote, if you're wondering).
And now to clarify what I mean by lag. I don't mean the video is stuttering, slowing down, or isn't running well or smoothly. That's not the issue at all. It's playing at exactly the framerate it should. What I mean by lag is that the audio and video are simply out of sync. The video is behind the audio. I can say with confidence that is it at least 40ms out of sync since my audio receiver has a setting to compensate for HDTV lag and turning it on and all the way up to 40ms yielded no noticeable difference.
Also, it isn't the clip itself or its overall playback with the PS2/SMS. The same file on my PC plays with no lag, and on a standard definition set (480i/NTSC or whatever SMS calls it), SMS plays the clip with a normal sync. Now, I have yet to try it out with 1080i or 480i on the DLP, but I do remember trying it with 480p and noticing it was out of sync. I guess by trying it with 480i and 1080i, I can confirm if it has something to do with enabling progressive scan in SMS. But to clarify, it can't be just my DLP since playing the same clip (reencoded to WMV) on a 360 yields no noticeable lag.
No 1080i is not really less intensive, it is just that the interlacing in this mode adds smoothness to the framerate.
Send me a private message please with information about the video encode or with a small sample (can be done with direct stream copy in virtualdub in almost no time).
1080i and 720p the video looks tall on may projector. Are there any settings in sms to make the picture look normal.
Does your projector do 4:3 image?
1080i and 720p are widescreen modes with 16/9 aspect ratio and should therefore be projected as 16/9 image.
Well that is strange, can't imagine why this is happening. But anyway i am afraid that this is more a problem of your projector settings, because on normal hdtvs 720p and 1080i is displayed correctly (well almost, there is some corrupted line but we are working on it)...
Corruption on my end in 720p is a single line that changes colors. It's maybe about one inch long and hardly noticeable. In 1080i, there's crap all over the place.
Originally Posted by pitrz
Also, I've confirmed that the lag results from progressive scan. 480i and 1080i on the DLP had no lag (or at the very least, less lag), and 480p and 720p both had (I'm guessing) the same amount of lag. It's interesting though considering the TV is not taking the time to deinterlace the progressive image, it should technically have less lag than the interlaced modes. Yet the opposite seems to be true. I'm attributing this to SMS and not the PS2 since every PS2 game I've played with a progressive scan option doesn't seem to have any issues with lag.
Heck, this might have been a problem all along, but since I happened to watch a few episodes of Death Note with no lag on the 360, I noticed the lag when switching to SMS.
Originally Posted by pitrz
Well that is strange, can't imagine why this is happening. But anyway i am afraid that this is more a problem of your projector settings, because on normal hdtvs 720p and 1080i is displayed correctly (well almost, there is some
it looks normal in both 720p and 1080i when i do wide panscan 2.
Last edited by tony111; 06-13-2007 at 08:28 AM.