Nth/Multi Pass Encoding with Divx 5.03

[omegasteffy]

I have been looking a bit arond for positive results of more than 2 pass encoding but have not been able to find any.

I hope this is not because people havn't used different Bitrate modulation (high to low motion setting)

Have anyone got noticely quality raise when using more than 2 pass encoding and at which bitrates and number of pass'es ?

plus i am not completely surehow i should encode first, first pass then Nth pass /es, is there anyway i should difine which nummer pass i am running or...

it just seems like a waste to me if i should to write the video file each time you run an extra pass that isn't the last
is it just me that haven't got the idear of it

[t3ch]

I tested this out on some anime I had, and didn't notice anything TOO spectacular. Some color was slightly richer and the picture became a little sharper.

I did 5 passes, and compared the 4. I imagine you'd get more noticable results in a real movie, but eh, who knows.

Is it worth it? My monitor is 21", so detail such as this is much more noticable. I'm gonna try to squeeze as much quality into it as I can.

No, you don't have to specify which pass to do. I was impressed at how they did this; it's not hard, you're just making things too difficult for yourself

In virtual dub, do "2 pass 1 pass", add it to the batch, then do "2 pass nth pass", and just keep readding that to the batch. I just keep resaving it as the pass number.

Unless you're on a slow machine or encoding something ungodly massive, I don't see a reason NOT to do as many passes as you can (within reason). Set up 10 passes before you sleep, let it run while you sleep, go to school, work, etc. then just cancel whenever you want your cpu back.

[Enchanter]

I tested this out on some anime I had, and didn't notice anything TOO spectacular. Some color was slightly richer and the picture became a little sharper.

I can't agree on the statement about "sharp." DivX 5 is well-known for its smoothing effect and I can personally attest to that. For anime, I would stay away from DivX 5 and stick with either SBC or XviD.

In addition to that, tests carried out by UncasMS, a moderator of this forum, revealed that any more than 2 passes is useless, may be detrimental to end quality and is an obvious waste of precious time.

[t3ch]

Pwned by the great enchanter!

You were right about teh sharpness, I forget where I'm posting, and it's late, I'm not in t3chnical mode. It does make a smoother picture, sorry for the mixup.

Not to second guess you, but do you happen to remember the topic/article name so I can take a look at it? Like I said, I only tried multi pass on one video so I'm basing my results on one trial only, I'd like to see what other people came up with as well.

[Enchanter]

Since you seem to be into anime as well, I strongly suggest you try either SBC (old and lower quality than XviD IMHO, but mosquito-noise free and has sharpest picture) or XviD (prone to mosquito-noise, but excellent quality and just as configurable as SBC). DivX 5 fails miserably for anime and does not compare to the other two codecs.

I can't remember the topic title anymore (been quite some time since 5.03 came out, its numerous bugs discovered not long after), but I'm sure if you do a search on "DivX 5.03", you'll eventually find the thread.

[t3ch]

I've been wanting to tryout XviD, but I just figured I'd wait for 1.0 before I started messing with it.

After seeing so many people here talking about it, I suppose it's past the buggy stage and is "workwithable"....

doh sorry omega I took over your thread

[Enchanter]

Originally posted by t3ch
I've been wanting to tryout XviD, but I just figured I'd wait for 1.0 before I started messing with it.

After seeing so many people here talking about it, I suppose it's past the buggy stage and is "workwithable"....

doh sorry omega I took over your thread

It's working perfectly with me, despite the numerous posts about bugs over at Doom9's forum (those people over there can somehow find every bug, no matter how small. I personally don't care, as long as it is working and looks perfectly nice). Koepi's latest Unstable Build and FFDShow for encoding and decoding purposes respectively would be my recommended combination.

p.s. For anime, I use B-frames only. No GMC nor QPel.