Render codec for slow 1080p scripts

[Blue_MiSfit]

Hey guys,

So - I've got some tough titles in 1080p that really require MVDegrain for effective degraining.

Thanks to the new MVTools branch, it's a lot faster than before, but I would still save time by doing a render pass.

The question is - what codec to render to?

Lossless codecs like HuffYUV and Lagarith are a bit excessive in this case IMO - as their output would be too large.

The sources I'm working with are MJPG, would it be reasonable to just encode again to MJPG, and then encode from that? I know MJPG is lossy, but it's intra-only, and at high quality levels shouldn't be too bad.

What do you guys think?

~MiSfit

[Adub]

One other option is to render to x264 lossless. There have been several tests done and it did pretty well in terms of speed.

See here:
http://forums.animesuki.com/showpost.php?p=1600358&postcount=528

[Blue_MiSfit]

I'm more concerned with size than speed. The render speed of my script is ~2fps on a Q6600.

I'm going to MJPG at the moment (ffdshow VFW at q95) - we'll see how it turns out :)

Thanks!

~MiSfit

[mikeytown2]

Just tested this
http://forum.doom9.org/showthread.php?p=1073371#post1073371
in MeGUI and it works! I used lags (Lagarith)

use ffds and it should work

[Adub]

Well, wouldn't x264 have a much smaller size than any other codec? Am I wrong in my thinking here?

Edit:
Okay, ran a small test on a small 25 second clip.

Huffyuv = 119mb
Lagarith = 114mb
x264 = 73.6mb

Edit:
FFV1, Large Context Model, Arithmetic Coding = 91.5mb

Edit2:
mp4 guy's settings minus the matrix, Xvid = 15.4mb <--Damn!

[Dark Shikari]

Also try FFV1 with Large context model and arithmetic coding.

[*.mp4 guy]

Xvid is better then mjpeg, If you go lossy. Even if you go intra only (which you shoudn't), its still better.

Test these settings and see if they meet your requirements. Fox home entertainment matrix, at cq2, no chroma optimizer, msp6, vhq4, chroma motion enabled, no trellis, no b-frames, no qpel

[Blue_MiSfit]

:D What a wealth of replies!

The real tragedy is that I decided to not use the degrain script at all, and just go with a really really aggressive degrainmedian chain :(

It's gotta be done quickly.

Anything else I can use besides degrainmedian that's very fast for 1080p, and will remove lots of noise? I don't really care if it flattens out the image and destroys detail.

~MiSfit

[Adub]

fft3dgpu?

[mikeytown2]

VagueDenoiser()
hqdn3d()

[Blue_MiSfit]

HQDN3D fits the bill for me I think.

fft3dgpu is my usual standard issue denoiser, but it's useless if you need to have remote desktop access to a workstation :(

~MiSfit

[CruNcher]

:D What a wealth of replies!

I don't really care if it flattens out the image and destroys detail.

~MiSfit

Wow i know alot of people that would like to kill you for that comment over @ AVS Forums, i hope you don't Master a Blu-Ray here, tough mastering a BD with MJPG as source i think is unlikely so what is your target if im allowed to ask ;)

[Blue_MiSfit]

I'm definitely not mastering a BluRay!!!

1080p @ 3mbps is tough, when your source is a VERY grainy Apple Photo-JPEG Quicktime MOV mezz file. At least the source is 80mbps..

~MiSfit

[squid_80]

Have you tried cineform?

[2Bdecided]

1080p @ 3mbps is toughWould a lower resolution be a better way of avoiding artefacts on a tough source?

The Canopus intermediate codecs are great, but you'll only have them if you have an applicable Canopus product (e.g. Edius Neo).

Cheers,
David.

[Adub]

My assumption is that he has to leave it in 1080 format, else he would have resized already.

[Blue_MiSfit]

Merlin7777 is totally right, I have to do 1080p :P

Cineform is a great idea, unfortunately I don't own it.

We should really get a couple licenses of that..

~MiSfit

[foxyshadis]

mp4 guy's settings minus the matrix, Xvid = 15.4mb <--Damn!

The matrix is the most important part! Using the standard matrix removes a lot of detail/grain. Any really high bitrate matrix (fox home, v3 uhr, etc) works, and will probably double the size, but that's still 1/3 of the best lossless. If you're trashing the grain anyway, well, I guess it makes no difference after all.

Also, lower the max keyframe interval if you'll be doing any intermediate editing, the lower it is the faster frame seeks are. If not, it makes no difference.