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Hi there,
I have just gone through this whole thread, just want to make sure if I understand it corredtly, here is the formula, right? Sampler() ##MPEG size = (( Total frames/MovieTimeInMinutes)/24) * (MPEG sample file size * .98 ) The above is applicable when Max GOP=24, right. What if I want to use it to predict KDVD's size. In that case, the Max GOP=18, so do I just replace the "24" with "18" in the formula? like below: Sampler(length=18 ) ##MPEG size = (( Total frames/MovieTimeInMinutes)/18 ) * (MPEG sample file size * .98 ) |
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Good morning all :) Edit: BTW syk2cy11, you might want to change the encoding mode on the KDVD templates to CQ_VBR, and then encode with file prediction. CQ_VBR should give you better quality that plain CQ. -kwag |
Hi Kwag,
I forgot to mention that, in fact, I have switched the KDVD template from CQ to CQ_VBR but I don't know if it is the best setting. I just modified from the old CQ to CQ_VBR by changing "Rate control mode" and set the max=5000, min=1000 (for Full-D1). I don't want to push you, but I am waiting for your fine tuning! |
Hi Kwag and SansGrip,
I decided to encode Minority Report using LBR (352x240) on 1 CD (800MB). There’s good news and bad: Movie Length = 8,712 seconds, Resolution (352x240), Resize=336x224 CQ_VBR=22.21 GOP=1-12-2-1-24 Total File size=726,346,795 Predicted File Size = 730,287,000, %Diff = 0.0542% WOW that’s close!!! 8O Audio (64kb) + Video = 795,832,097. Amazing!!! :mrgreen: Here’s the bad news: Picture quality was poor, lots of Gibbs effect around moving people and objects, artifacts, distant objects were blurry, :( but dark areas were solid in color (thanks to Blockbuster noise) and the audio was good (sounds like 128kb). :D This film was in Wide Screen format and that helped to get it to fit on 1 CD. I don’t believe Full Screen would have fit without a major drop in CQ_VBR. For movies over 90 minutes I would buy them as wide screen to fit for 1 or 2 CD’s. :? -black prince |
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Hi SansGrip,
SansGrip wrote: Quote:
Blockbuster noise and unchecked anamorphic on FitCD output. The resize resolution is 496x352 with AddBorders(16,64,16,64). I reduced the audio from 112kb to 64kb using Headac3he. These changes increased CQ_VBR to 24.53. The picture quality is very good with alot less Gibbs effect, artifacts and some improvement of blurry distant objects. Next time I'm going to create a 3 minute sample movie to check picture quality before doing a full encode. :) -black prince |
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-kwag |
Hi Kwag,
Kwag wrote: Quote:
then the output should be the same. I already added Blockbuster noise back because I miss the dark areas with no blocks. It didn't reduce CQ_VBR by much. I'm still having fits with FitCD and cropping borders instead of using Tmpgenc's Clip Frame. I though I understood how to do this, but my results are not what I expect. This time clip frame top=64, bot=64, left=16 and right=16, but how to get the same with using crop is puzzeling me. Maybe you or SansGrip could give more explaination. :) -black prince |
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720 - (16 + 16) = 688 by 480 - (64 + 64) = 352 FitCD will automatically choose what it thinks is the correct "left border" and "top border" for those values, but it might be wrong if the borders aren't perfectly symetrical. If you notice it says, for example, left border is 8 and you know it's 10, then change the 8 to a 10 in the "left border" box. Ditto for the top border. At this point FitCD knows the size of the frame without borders and how wide each border is. You can then choose your cropping method ("no cropping", "accurate" and "average" are the most common -- I almost always use "average" myself) and set the cropping "round to" sliders both to 4. While you're at it, set the resize "round to" sliders to 16. Also choose the correct destination size, set your TV overscan blocks, and uncheck "optimize for CCE", "Anamorphic" and "Format conversion". The values shown for cropping and resizing will now be correct for this particular movie, so either copy the script output or insert the values into your own script. Here's an example from the last movie I did. Source frame: 720x480. Frame without borders: 706x462. Left border: 8. Top border: 8. Average cropping. I hit the "Source" button and load in the .d2v file. I then set the "film pixel" boxes to 706 and 462, and the "left border" and "top border" both to 8. I make sure the "round to" sliders are all correct, and select the cropping method I want to use -- in this case, "average". FitCD tells me that I need to crop to 696x460, then resize to 528x352. I put the following lines in my script: Code:
Crop(8, 8, 696, 460) Code:
AddBorders(0, 64, 0, 64) Hope that helps. |
@SansGrip,
SansGrip wrote: Quote:
got lost. :D This is very clear. Thanks :D -black prince |
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What a headache, i`ve been trying to follow the developments in this ongoing thread, playing around as new developments came about, tweaking and adjusting.
The movie I`ve been playing with is Beauty and the beast. I live in South Africa, so most off our movies are 16:9 anamorphic. So beauty is full screen. I`ve been trying to put it on one cd with the 704x576 pal plus template with all the new tweeks,gop filter etc. I get to the point where it just doesn`t look good enough, so I reverted back and used x2pal 1cd template Cq28 min300 max2500 and it looks good on my 74cm tv. What is Gibbs effect? |
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Hope that helps! |
If I don`t enable anamophic in fitcd, my file size with predict is much smaller :D , but then when I play it in my standalone the pcture is about half the size than the original DVD :cry: width wise, is there anyway to overcome this without enabling anamorphic :?: . My problem is that I have a standard 74cm tv, and If I go true 16_9 it`s to small for me width wise compared to the original.
So what i`m saying is that while you guys are able to use 704x576 to put longer movies on 1cd, I cannot because I have to drop my max and cq-vbr so much that picture qaulity drops to much. So I revert back to Standard x2 with the new Gop, but then the filsize predict doesn`t come close, because if you use normal instead off motion estimate, the filesize actually decreases. Any help would be aapreciated |
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-kwag |
thanks, i`ll try that tonight. I just finished reading the cq vs cq-vbr topic,and I have had similar findings before thats why I reverted back to standard x2 1cd template. It encodes quiker as well. Will you be incorporating your matrics used in the plus templates or is it the same :?:
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-kwag |
ok i`ve tried overscan1 left anamorphic off, but sadly it still creates almost half the normal width file :cry: :cry:
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I have another resizing method which seems to work a lot better for me, using strictly TMPGEnc to get the proper resolutions -- very simple to do, substantially faster encode times and perfect aspect ratio. When I get home, where I have access to a fast inet connection and a decent computer, I will post it. It might solve your problem vdermerwedz.
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thanks for effort :D , i`ll be waiting :roll:
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