Suggestion for those with low disk space

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Suggestion for those with low disk space

Postby Zarxrax » Tue Oct 22, 2002 2:25 am

Working on my current video, with 50gb of huffyuvs, I just couldn't put up with it any longer. It was just eating up too much of my hard disk, I wasn't able to even defrag my disk was so full (and the huffys themselves were very fragmented, so played back very choppy anyways). So I decided that I simply couldn't work under these conditions.
I believe I've found a very nice little solution to my problem though. I tried encoding the huffyuvs to the XviD codec, with all keyframes, at constant quantizer of 1. I loaded this baby up into premiere, set it down in the time line, chopped it up into tiny pieces and rearranged them, added some rtansparency and effects, and dragged the the timeline marker over them vigorously, trying to make premiere crash. But it didn't! It was perfectly stable using xvid (which I can't say for divx). Of course the video quality is slightly degraded from huffy, but its very, very negligable difference, and the savings in filesize more than make up for it, in my opinion.

Just a little tip I thought I'd throw out there for anyone else thats having trouble working under hard disk limitations.
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Postby klinky » Tue Oct 22, 2002 2:50 am

This is ErMaC right about now:
Image




Actually it doesn't sounds like a bad idea s long as it's high bitrate.

I get tired of waiting for renders is it any faster. Also since I am not a super smarty man are we losing "color space" ;p or something of that sort..


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Postby Machine » Tue Oct 22, 2002 3:24 am

Have you no shame???

Kittens are dying by the hour!!!!! :oops:
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Postby ErMaC » Tue Oct 22, 2002 6:47 am

Nooooooooooo!

OK encoding at CQ1 is really no better than CQ2, so if you're gonna do this at least encode at CQ2 and save yourself the disk space (the difference between CQ1 and CQ2 in terms of quality is almost negligable but the difference in filesize is substantial).

And you still are hurting your video by doing this, I won't lie. But I won't lie and say it'll wind up looking like shit... but it won't be DVD quality anymore.

I'm doing new XviD encodes of my videos, and I just made the prettiest encode ever, it's of my Lord's Prayer X video. Why does it look so good? Cause it was edited progressive from an IVTC'd huffyuv of the DVD. And boy, is the file pretty.

When you encode to XviD first off you're throwing away color data. MPEG4 compresses in YUV 4:2:0 colorspace - that means that every group of 4 pixels shares a single color value, but each pixel has its own luma value. This will hurt your encoding later because your colordata has gone down the toilet, and when you go to resize your video for online distro it'll suffer.

If you really want to do this, you can. But I would put up with the slowdown.

Actually I just wouldn't edit from Huffyuv's - editing from the AVS's would probably be faster :p
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Postby klinky » Tue Oct 22, 2002 7:22 am

Actually it's probably quicker if you compress clips with HuffYUV from a AVS script that you have setup to do IVTC + aspect ratio correction resizing. For some reason I enjoy seeking out clips in Vdub over using lamo Premiere.



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Postby Zarxrax » Tue Oct 22, 2002 10:19 am

I know all about the quality I'm losing. There is no dvd source available, however, so I have to work from tv captures. And on the speed side, I find it to be VERY fast, faster than editing in huffyuv.
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Postby RadicalEd0 » Tue Oct 22, 2002 3:38 pm

It's definitley a sound idea, actually I almost did the same thing awhile ago in the same situation but ended up refusing to go through with the quality degrasion Image;

as for quant 1 vs 2, quant 2 is equal to quality 100, in other words quant 2 gives a saturated file. Personally I'm paranoid and would use quant 1, but you'd better check both out and see which result you're more pleased with.

and finally, don't forget that mpeg 4 as a standard is capable of more than just yuy12, its just the simple profile currently only makes use of that.
NMEAMV: PENIS
NMEAMV: IN
NMEAMV: YO
NMEAMV: MIXED
NMEAMV: DRINK
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Re: Suggestion for those with low disk space

Postby Sub0 » Wed Oct 23, 2002 5:10 pm

Zarxrax wrote:Working on my current video, with 50gb of huffyuvs, I just couldn't put up with it any longer. It was just eating up too much of my hard disk, I wasn't able to even defrag my disk was so full (and the huffys themselves were very fragmented, so played back very choppy anyways). So I decided that I simply couldn't work under these conditions.
I believe I've found a very nice little solution to my problem though. I tried encoding the huffyuvs to the XviD codec, with all keyframes, at constant quantizer of 1. I loaded this baby up into premiere, set it down in the time line, chopped it up into tiny pieces and rearranged them, added some rtansparency and effects, and dragged the the timeline marker over them vigorously, trying to make premiere crash. But it didn't! It was perfectly stable using xvid (which I can't say for divx). Of course the video quality is slightly degraded from huffy, but its very, very negligable difference, and the savings in filesize more than make up for it, in my opinion.

Just a little tip I thought I'd throw out there for anyone else thats having trouble working under hard disk limitations.


hehe or get yourself a couple hundred cdrs ;-p. Do you use Windows' or Symantec's crapass defrag? (OK, Symantec's is only ass but...) Try Disk keeper Lite. It's free and it's at www.executivesoftware.com... btw it comes with WinXP... don't know if it'll function when the others wont but it is better in every area so... couldn't hurt to try b4 you mess up some clips ;-p
BTW If you are gonna digitally 'retouch' (L33T!) those clips than you might want to zip them b4 puting them on CD. (same goes for game saves... wahhhh! 2 l200 PSOpc characters down the drain cuz the stoopid cd made the file read only!!)
nother idea how bout MJPEG when recording with MJPEG Vdub gives me a 3:1 ratio wheras uncompressed is 1:1 (won't let me do lossless) and 4000bps XviD is 30:1. still it might not be small enough... anyway just some things I aint smart an all ;-p
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