Comments

NickHope wrote on 12/28/2011, 12:16 PM
What exactly do you mean by pixellation? Do you have a link or screenshot of an example?
wbtczn wrote on 12/28/2011, 4:43 PM
Here's a link to a video I uploaded a few weeks ago:

NickHope wrote on 12/29/2011, 12:41 AM
What format did you upload?
farss wrote on 12/29/2011, 2:04 AM
That is so bad I doubt it had anything to do with what you uploaded. It's the same at 720p and 360p.
You say using a different uploader cured the problem but all the uploader does is transfer the file from your HDD to one on YT's server(s). What I think happened was the file was corrupted during the upload and uploading it again got it there without the corruption. It could be that the other uploader has better error detection / correction I guess.

Bob.
wbtczn wrote on 12/30/2011, 5:30 PM
I re-uploaded that same video with the new link, and looks fine now:



No changes to the file. It is a .wmv file
Steve Mann wrote on 12/30/2011, 5:38 PM
It is a .wmv file

That's part of the problem. WMV is not the best to upload to YouTube. The best is uncompressed AVI or MOV, but they tend to be pretty large.
musicvid10 wrote on 12/30/2011, 6:00 PM
This, from the horse's mouth:Container: .mp4
I would never upload uncompressed RGB to Youtube.

Our tutorial meets or exceeds Youtube's specifications.
Do not use variable frame rate for upload to Youtube.
farss wrote on 12/30/2011, 6:02 PM
"WMV is not the best to upload to YouTube"

I doubt it being WMV has much to do with this problem.
Thinking about it again and given that another upload of the same video cleared the problem I'm inclined to think the OP just struck a computer in YT's vast network with a wobbly WMV decoder. Each I frame seems to decode perfectly and then the difference frames get progressively worse until a new I frame comes along and all is good until it falls apart progressively again.

Certainly reducing the time between I frames during the encode can help but then again I've worked with WMV files with I frames minutes apart without problems getting a clean decode. Vegas didn't like it because it is forced to buffer so many frames but it was still clean.

Bob.
wbtczn wrote on 1/1/2012, 1:15 AM
Thanks for the feedback and guidance. I'm going to be away from my computer for the next week or so....I'll try this when I get back!