DIVX on DC!!!

Rocky Balboa · Post by **Rocky Balboa** » Sat Jan 12, 2002 8:31 am

This news is way too good(check front page for info), doesnt look like a hoax either, im so excited

Tails Prower · Post by **Tails Prower** » Sat Jan 12, 2002 9:32 am

I think this is great, because coding your divx files to mpeg-1 makes them like, triple their origional file size, and takes the quality down a bit. I Cant wait.

SonicBlaze · Post by **SonicBlaze** » Sun Jan 13, 2002 11:10 am

I hought DivX on DC would kick some a$$, but it turns out to be no big deal. The info on this site isn't too specific, so vist dcvision.com and there will be more detail. Turns out it only goes at 24fps at 300x? resolution so far. I don't think it'll turn out to be a high quality image, so I wouldn't count on it "kicking @$$"

NiGHTSFTP · Post by **NiGHTSFTP** » Sun Jan 13, 2002 12:06 pm

SonicBlaze wrote: I hought DivX on DC would kick some a$$, but it turns out to be no big deal. The info on this site isn't too specific, so vist dcvision.com and there will be more detail. Turns out it only goes at 24fps at 300x? resolution so far. I don't think it'll turn out to be a high quality image, so I wouldn't count on it "kicking @$$" :cry:

oh be quiet.

Ever play a VCD? Its 352x240.

This DivX encoder will be 320x240, and 2:1 stretched onto the screen (giving a proper aspect ratio).

Ever see the artifacts on a VCD at 1000Kb/s, or at the 1150Kb/s standard, or how bout at 2000Kb/s over 2CD's? Yes, there are shitty blocks even when encoded at well over the standard.

The DivX would eliminate the artifacts from a DVD->1CD DivX rip... essentially being the same quality (less the resolution). You wouldnt notice much difference (maybe in the sharpness factor, so buy a damn S-FU'CKIN-VIDEO cable, and a TV with SVideo inputs, dammit.) on a normal NTSC 32" TV from two feet away, if it is encoded properly.

fatheadpi · Post by **fatheadpi** » Sun Jan 13, 2002 5:53 pm

Well I'm feeling futile at the moment. Divx at these rates would be great. But I finally found a good playback rate for gyplay, sorta late and futile tho...

I've been watching some videos I recorded off of a fuzzy station. I set them up to the new standard I've come up with, and they played back better on the dc than they did on my pc at full screen. At 1300 kpbs however, you'd be lucky to pull 60 minutes out of a cd.

fatheadpi · Post by **fatheadpi** » Sun Jan 13, 2002 5:53 pm

Well I'm feeling futile at the moment. Divx at these rates would be great. But I finally found a good playback rate for gyplay, sorta late and futile tho...

I've been watching some videos I recorded off of a fuzzy station. I set them up to the new standard I've come up with, and they played back better on the dc than they did on my pc at full screen. At 1300 kpbs however, you'd be lucky to pull 60 minutes out of a cd.

Rocky Balboa · Post by **Rocky Balboa** » Sun Jan 13, 2002 9:28 pm

now that i think about it, DivX can only be played on pc right now, so dreamcast will be the first system other than the pc to run it, i think this will bring a whole lot of attention to dreamcast and development will become more popular, at least i hope!

Dreamcast rules!

fatheadpi · Post by **fatheadpi** » Sun Jan 13, 2002 9:37 pm

Indeed it will rule all when the divx player is out, i was checkin the boards and i dunno but i saw somethin aboot it bein a really really sweet player (like onboard mp3 support, ogg vorbis, divx, mpa, and mpeg support). I just saw this, I dunno if its true or not so don't quote me, i got lost when i hit the second page on the forum.

Hey rocky, bitchin picture, rocky rules, but i just noticed somethin. Have you seen the movie blow? It's not a porn, the one with jonny depp, great flick, but paul rubens is in it, and in a few parts he looks like your pic of rocky. Wonder what kinda reaction i'd get if i set him as my image?

XenovipeR · Post by **XenovipeR** » Mon Jan 14, 2002 3:10 am

hmmm by the look of the current DivX on DC news we probably cant pop in any divx movie cd to play it ...

as they say 320x240 res is probably the max for DC to run smoothly :(
oh well there goes my hope of putting my collection of divx movies into DC to play it ...

it would be a lot of trouble of re-encode movies JUST for DC playback ... ppl may as well use that DivX movie re-encoder thing released long ago which converts DivX into Dreamcast video and audio format to play on DC ...

kRYPT_ · Post by **kRYPT_** » Mon Jan 14, 2002 8:34 am

Well, when you're encoding things for your private use lets say from VHS, or if it's a DVD you own, then you can use the proper parameters to play it back on your DC.

XenovipeR wrote: hmmm by the look of the current DivX on DC news we probably cant pop in any divx movie cd to play it ...

as they say 320x240 res is probably the max for DC to run smoothly
oh well there goes my hope of putting my collection of divx movies into DC to play it ...

it would be a lot of trouble of re-encode movies JUST for DC playback ... ppl may as well use that DivX movie re-encoder thing released long ago which converts DivX into Dreamcast video and audio format to play on DC ...

XenovipeR · Post by **XenovipeR** » Mon Jan 14, 2002 5:00 pm

but the whole point to port DivX on DC is to play back WITHOUT using my PC .... but i guess the spec on DC just aint good enough to playback DivX with high bitrates and higher res ...

the whole point of DivX movies is having ur movie clip at high res and nice quality .... but it seems that DC cant play back those high res DivX clips then ppl may as well use DC's SFD movie format or even Mpeg-1 VCD format ... since ur getting around the same result from those low bitrate encoding which runs smooth on ur DC AND the encoding time for Mpeg-1 is faster if u have a sh|t box !

but if ppl just want to prove that DC can run DivX clips *cough* at lower res then it's fine ...but for the long run i thought mepg-1 or SFD is the way to go if u want to playback movie clips u make for DC ...

Rocky Balboa · Post by **Rocky Balboa** » Mon Jan 14, 2002 6:52 pm

fatheadpi wrote: Indeed it will rule all when the divx player is out, i was checkin the boards and i dunno but i saw somethin aboot it bein a really really sweet player (like onboard mp3 support, ogg vorbis, divx, mpa, and mpeg support). I just saw this, I dunno if its true or not so don't quote me, i got lost when i hit the second page on the forum.

Hey rocky, bitchin picture, rocky rules, but i just noticed somethin. Have you seen the movie blow? It's not a porn, the one with jonny depp, great flick, but paul rubens is in it, and in a few parts he looks like your pic of rocky. Wonder what kinda reaction i'd get if i set him as my image?

It wont bother me, unless its like exactly the same picture, its fine if its jest similar

fatheadpi · Post by **fatheadpi** » Mon Jan 14, 2002 7:22 pm

LOL well thanks for being a good sport aboot it. Guess I better stop posting till I have something useful to say. Divx GOOD! MPEG VBR BAD!

DLolos · Post by **DLolos** » Mon Jan 14, 2002 8:09 pm

What I always wanted a Divx player for Dreamcast. From the sounds of it the Divx player might be worthless if the video must be 320X240. I mean no one encodes a Divx file in 320X240. Anyone that does is stupid

Not to forget the Bitrate will be 300 Kbps or at best 500. I guess for a 320X240 it won't be bad at 500 but 300 is pretty bad. The Dreamcast has a 12X speed CD drive so it should be able to handle more bitrate. If the Divx player for DC could play back at 496X496 like the Pocket PC version can then thats not bad. My only hope is that they give out the source code so people might be able to tweak it and make it better.

If it could be tweaked to be 640X240 then I'm happy. I tried to play a divx movie on a 200 Mhz MMX system with a S3 Savage 16 megabyte video card and it could not play movies bigger than 480X352 resolution. Then again the Dreamcast does not have a Pentium 200 in it. The SH4 has a advantige of being able to do 1 Gigaflop. I'm not sure if Divx uses a lot of FPU instructions but they could use it to speed up Divx play back. I think Gigaflop represents the FPU performance of the Dreamcast that does the Geometry and lighting but I'm not sure so I could be VERY wrong. That and Dreamcast is not running Windows. Besides the Dreamcast is a Risc 128 bit CPU. I mean what is the Pocket PC cpus anyway? Probably not even Risc and still 32bit like a PC. Then again the coder has not even worked on the Divx player for the DC for more then a week so you know it could speed up a lot if we give him time.

fatheadpi · Post by **fatheadpi** » Tue Jan 15, 2002 9:18 am

Why does everyone think divx at 320x240 would suck? First, It'll be a lot better than mpeg movies at 352x240 and 1150 that look like they were made out of legos (and I think I have some authorit-aye aboot this). Second, I put dvd rips on my pc at 720x480, and get away with a 956 bitrate. From experience with reencoding mpeg 1 vcd's to divx,at 320x240, I've gotten away with less than half that bitrate. If I could achieve aboot 425 I'd be stoked. At 320x240 a divx movie will always look better than an mpeg movie, even at these bitrates. Lastly, I assume this divx contraption is based off the divx 4.12 codec. The divx 4 codec has post processing, and with it turned down, I've seen divx run on noticeably slower computers, with a slight loss in quality. If anyone is having framerate problems, I maybe turning this down could help boost player speed. Just a thought, I still don't know entirely everything about the divx codec, like what all the quantitize fields do and whatnot, and I don't know dick aboot the pocket playa, but trying to pitch in where I can.

salvius · Post by **salvius** » Tue Jan 15, 2002 6:20 pm

I appreciate the teams effort and I think that the effort is good. One thing, the bitrate is too low. DivX at best is boasted to be a ~4:1 compression ratio.

That means:

300 kbs Divx = ~1200 kbs mpeg1

Sure, this is rough around the edges, and mpeg1 could look better with VBR (divx MUST always use multipass). Then again, so could Divx. You also need less space on audio. Therefore, this isn't going to look amazing.

The resolution is somewhat less of a problem in my opinion. 320 X 240 is decent, if not amazing. It is just slightly sub VHS. Sure 480 X 480 would be nice, but it is not necessary (unless you're a big screen TV owner).

The big gains here are in space as you could put a LOT of minutes with such a low bitrate.

In closing:
If your VCD looks like legos, I'd try re-encoding. The goal is to get not much noise, and not too much blur. A properly encoded VCD can look great. A properly encoded VBR MPEG1 XVCD with an average bitrate of 1150 kbs will look BETTER than current Divx goals on DC. However, if the bitrate does indeed go up to 500 kbs, I'll be the first to convert.

fatheadpi · Post by **fatheadpi** » Tue Jan 15, 2002 6:28 pm

Bear in mind me and bouncer are the current gyplay experts for playing movies on the dc. I've gotten ptretty good quality at 1150, but anything above that I've had bad luck with, and with vbr i've had really really bad luck using gyplay.

I still think that the divx file will look better, let alone play longer than the mpeg 1 streams.

salvius · Post by **salvius** » Tue Jan 15, 2002 9:24 pm

WHOOPS! Sorry, I apologize.

The above were general observations with a DVD player that plays (x)VCDs and (x)SVCDs as compared to possibility of Divx on DC.

I fully certify that I know nothing about playing movies on Gyplay or generally DC for that matter.

fatheadpi · Post by **fatheadpi** » Tue Jan 15, 2002 9:45 pm

Well don't worry you didn't miss much. Despite divx, I wish I had a standalone dvd player that would play back xvcd's and svcd's.

JustinVisible · Post by **JustinVisible** » Tue Jan 15, 2002 10:04 pm

:p Im just thankful that I might be able to play my Divx disks on my dc,
My computer is too unstable to run them

DIVX on DC!!!

DIVX on DC!!!

who cares

who cares

Well, it's not great