Question about Proxy videos

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Question about Proxy videos

Postby AlexL55 » Sun Jul 09, 2006 12:27 pm

I've got some crazy high-quality raws (1280x720, 120fps, Divx5), but they choke up Vegas when I import them. I remember reading somewhere that I need to use a proxy video into order to edit them. But, I not really sure how to create one and how to swap out the proxy with the Hi-quality raws when doing the final rendering.

I plan to use Sony Vegas 6.0c for editing and Adobe After Effects for SFX.
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Postby DeinReich » Sun Jul 09, 2006 12:48 pm

Hmm... just a shot in the dark, but use DVD footage perhaps? Then you can change around the resolution and fps to whatever you please.

(assuming that by "raws" you mean "term for anime torrents not containing subs".)
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Postby AlexL55 » Sun Jul 09, 2006 1:31 pm

Unfortunately only the first ep is out on R2 DVD. and yes, the raws are HDTV rips from Japan. The anime btw is Suzumiya Haurhi no Yuutsu.
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Postby Pwolf » Sun Jul 09, 2006 4:36 pm

try not using divx? that alone makes it slow to edit with...

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Postby DJ_Izumi » Sun Jul 09, 2006 5:00 pm

Pwolf wrote:try not using divx? that alone makes it slow to edit with...

Pwolf


Not that lossless 1280x720 wouldn't be murder either. ^^;
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Postby Pwolf » Sun Jul 09, 2006 5:05 pm

DJ_Izumi wrote:
Pwolf wrote:try not using divx? that alone makes it slow to edit with...

Pwolf


Not that lossless 1280x720 wouldn't be murder either. ^^;


better then 1280x720 divx.

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Postby Melanchthon » Sun Jul 09, 2006 5:16 pm

Are you planning on doing any effects that need the video to be that resolution? If not, then you can re-encode your raws to something more manageable, and then when you're ready for export delete the smaller files and point your editing program at the original ones.
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Postby AlexL55 » Sun Jul 09, 2006 6:48 pm

what should I reencode the raws into? I read that huffyuy is a good codec to work with. I plan to reencode them into a smaller resolution too. My question is that I not sure how to swap the out the proxy video with hi-quality ones using Vegas
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Postby DJ_Izumi » Sun Jul 09, 2006 6:49 pm

In the case of 720p, do lossless applications have any chance of real time playback? I think this may be a case that bait and switch may work best. o_o
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Postby Kalium » Sun Jul 09, 2006 6:57 pm

DJ_Izumi wrote:In the case of 720p, do lossless applications have any chance of real time playback?

Sure, if you're using a Cray...

Oh, you mean a normal system? Not a snowball's chance.
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Postby Melanchthon » Sun Jul 09, 2006 6:59 pm

Encode it into something that's all keyframes and also something you can play back in real-time in the editor. Huffyuv or Lagarith are good lossless codecs, but my computer can't handle them so I use mjpegs for editing.
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Postby Kalium » Sun Jul 09, 2006 7:03 pm

Melanchthon wrote:Encode it into something that's all keyframes and also something you can play back in real-time in the editor. Huffyuv or Lagarith are good lossless codecs, but my computer can't handle them so I use mjpegs for editing.

Still unlikely to work, simply due to the sheer amount of data processing needed.
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Postby DJ_Izumi » Sun Jul 09, 2006 7:08 pm

The ammount of disk space necessary would be overwhelming in most cases as well... *goes to test something*
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Postby DJ_Izumi » Sun Jul 09, 2006 7:22 pm

I took the first 3mins of .hack//roots and converted it to Lagarith Lossless in YV12 colorspace (The source is YV12, so why waste the space using RGB?) The resulting file took about 8mins to do and totaled 1.06 GB

So about 350 MB/Min of 720p video, but of course that can vary by what the lossless codec is compressing. It may not be impossible... But trying to read 350MB in one min for playback isn't entirely murder. RGB on the other hand probably would be.
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Postby Melanchthon » Sun Jul 09, 2006 7:30 pm

Kalium wrote:Still unlikely to work, simply due to the sheer amount of data processing needed.

Then downsize them (which he's going to have to do for distro anyway). If he's not making masks or anything, then the footage doesn't need to remain at its original size.
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