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6-Jun-2011
Last activity
24-Mar-2017
Posts
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Post History

Post
#1058248
Topic
The theatrical colors of the Star Wars trilogy
Time

DrDre said:

I can confirm, that during the Mos Eisley entrance scene the orange/yellow droid R5-A2 is indeed more yellow than orange. The shot where Luke and the gang are stopped by Stormtroopers looks somewhat like this:

Bluray regraded:

That reminds me the PAL laserdiscs are indeed not too far from it, color wise:

Image taken from my first project… colors are duller in comparison, due to capture card used, capture settings, laserdisc player, inherent composite nature of the source etc.

Post
#1058119
Topic
Avisynth parallel encoding
Time

Studing a good way to improve speed with avisynth, I tested some different path…

  • New CPU: obvious… but take in account the complete cpubenchmark score, not only the single thread - if, for example, your old dual core CPU has a single thread score of 500 and complete score of 1000, and the new quad core has a single thread score of 1000 and complete score of 4000, it will go four time faster, more or less!
  • Faster HDD (or better SSD): haven’t tried an SSD yet, but I’m pretty sure this will not improve the overall speed.
  • Avisynth 64bit: could indeed improve speed, but it has quite few compatible plugins…
  • MT version and other multithread plugins: could work, but sometimes MT crashes, and other plugins didn’t work - probably my fault
  • Parallel encoding: it works well! Follow me…

I tried this path in the latest days; I didn’t dare to try it with my poor old dual core, dual threaded CPU, but with the new quad core, eight treaded one, I wanted to give it a try… and, oh boys, it works, very well!

How it works?

Well, just take your script, and “cut” it in several pieces - it seems that four pieces works well here, they run the CPU at around 80%, leaving some breath for surfing and other little things; probably it could work with more pieces, but your mileage can vary.

Before


project1.avs
avisource(“your source.avi”)
filter1
filter2
filter3
[/code]

After


project1_part1.avs

avisource(“your source.avi”)
filter1
filter2
filter3
trim(000000,040020)

project1_part2.avs

avisource(“your source.avi”)
filter1
filter2
filter3
trim(040000,080020)

project1_part3.avs

avisource(“your source.avi”)
filter1
filter2
filter3
trim(080000,120020)

project1_part4.avs

avisource(“your source.avi”)
filter1
filter2
filter3
trim(120000,000000)

project1_final.avs

a=avisource(“project1_part1.avi”).trim(000000,039999)
b=avisource(“project1_part1.avi”).trim(000000,039999)
c=avisource(“project1_part1.avi”).trim(000000,039999)
d=avisource(“project1_part1.avi”)

a+b+c+d


Encode them at the same time; speed improvement: from 250% up to 400%, depending on how “heavy” are the filters/plugins…

You know, instead of waiting, let’s say, two days, it’s better to wait “just” 12 hours, don’t you think?

Hope this would be of some help.

Post
#1057399
Topic
Halloween [spoRv] *BD-25 RELEASED*
Time

oligregoire said:

The 35th anniversary edition in the box set (aka different from the retail one) has the real uncompressed mono (and not a downmix) …

Interesting! I wonder if it’s the same of the Criterion one included in this release.

Post
#1056743
Topic
The Matrix [spoRv] *BD-25 RELEASED*
Time

He gave just an idea - you know, we were talking, and he said: “if you want theatrical accurate colors, why don’t you use a print scan instead?” - he doesn’t even know that is actually possible! 😃

Is that in the wild? Dunno, but if someone is aware of it, please drop me a PM, I would be curious to give it a try…

Post
#1056255
Topic
The Matrix [spoRv] *BD-25 RELEASED*
Time

Latest testing gave excellent results; using BD contrast, there are no artefacts; even if colors now are a bit off in comparison to previous version, I learned that DVD was very “flat”, so now, to me, it’s better - fear not, the DVD colors are there, just faces are less green/brown/blue (following the shot tones).

I’m aware that many have chosen the HDTV open matte as the prefferred version - it is quite good indeed, still, BD has better resolution, less compression, and the OAR.

So, anyone interested?!?

Post
#1055019
Topic
Which HD-DVD is better than Blu-Ray?
Time

I used Windows XP since 2007; skipped Vista, avoided 7, disliked 8… but now that I have Windows 10 in the new machine, I’m pretty happy; strangely, it seems compatible with everything I had in the old PC, and it’s pretty similar to XP, so I’d say “go fo it!” 😄

Post
#1053636
Topic
Halloween [spoRv] *BD-25 RELEASED*
Time

Had bad connection lately, so I was forced to use a friend’s one - you noted it, right? 😉

Well, from now on, my projects will be released under a new “label” - agree that it’s nice and more appealing than the old one… and it was time to change something!


PROJECT RELEASED

It’s on the usual-personal-internal-organ-you-know-what…

This post has been edited.

Post
#1052781
Topic
The Thing (1982) [spoRv] *BD-25 RELEASED*
Time

Thanks Colson!

Final encoding is almost finished, I hope to put it in the usual place in the next few hours.

And I added some little surprised, hope someone would appreciate them… stay tuned!

Post
#1051352
Topic
AviSynth and VirtualDub - speed improvement
Time

After few years, an update…

Two VGX-XLs are dead… 😦 don’t know if they could be saved somehow, but I think it doesn’t worth the money spent on hardware or technical repair work; at least one (this) survived, even if it’s the one with less power (C2D E6300 1.86Ghz); idea of upgrading it with a more powerful CPU it’s still there - found a Q6600 2.67Ghz at 30€; it will improve the speed 3x; not bad at that cost!

A decade old PC, albeit capable of doing a lot of things - all my projects to date used this one, or another with slightly faster CPU, it’s umbearably slow; I was tired to wait a week for a lossless conversion, or one day or two for a lossy one; a minute to open an avs file, and few seconds to move to the next/previous frame.

So I found myself “forced” somehow to change the things. And I acted. Slowly, but firmly. Decided to go for a second hand, but good, desktop PC. AMD out of the games, i3 too slow, i5 not powerful enough, E5 Xeon too dear, so i7 was the logical choice, great price/power ratio.

Found an i7-4770 (non-K); seems almost new, very good status. Along it, great case, water cooler, 16GB RAM 2133Mhz, 600GB VelociRaptor, EVGA 760GTX.

Long story short: even if only few Avisynth plugins use multithreading, this new PC (with a CPUbenchmark score of almost 10000) is indeed ten times faster than the old one (score around 1000); so, do not base your calculations for speed improvements on single thread scores.

Hope this could help someone to decide to upgrade his CPU, or buy a “brand new used” PC as I did!

This post has been edited.

Post
#1050513
Topic
Halloween [spoRv] *BD-25 RELEASED*
Time

Just finished to watch the movie, and guess what? It’s almost perfect, apart that shot! 😄
Found a perfect solution, now I must encode it lossless, but all my HDD are full, so I have to wait until I could afford a new HDD… 😕

Post
#1050470
Topic
Halloween [spoRv] *BD-25 RELEASED*
Time

Finished right now to encode it with the newest settings.
Colors… WOW! They are, like, 99% the same in 99% of the shots… except few ones - like the one you posted few posts (and many months) before. That’s because the DVD and BD have different framing.

Now I’m going to watch the whole movie, to spot these shots. Solutions? Leave them untouched, with very good colors in all the shot except small parts (Donald’s forehead, for example), or use another color matching script, with colors less closer to the DVD, and much closer to BD… in this case, no problems, but, for example, if there are similar shots before or after the replaced one, you would note different colors…

Well, meanwhile I watch the movie, think about a possible solution - even different from this! 😄

Post
#1050377
Topic
Halloween [spoRv] *BD-25 RELEASED*
Time

Re-working on this right now… revised version hopefully will be even closer, color wise, to the THX DVD, and I hope to remove all the residual artefacts.

Post
#1049869
Topic
The Thing (1982) [spoRv] *BD-25 RELEASED*
Time

Revised version is near completion… if someone is still interested, as Arrow would release another version in the next months… who knows, maybe it will have the right color grading?!?

Post
#1049042
Topic
The X-Files (1993) Season 1 - 4 in 4X3???
Time

NTSC US laserdisc for “Pilot” is noticeably better than NTSC US DVD; more details, and a bit more image on the sides; I just compared this, and the second episode, “Deep Throat”; with the latter, laserdisc is just marginally better, but still has more image on the sides. Probably all the other NTSC US laserdiscs should be the same.

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