YouTube HD uploads - 1072 still?

[Voxx]

Hey there,

I wasn't able to find up-to-date information about this issue.

There was a time, where uploading 1920x1080 clips resulted in quite low quality because 1080 is not able to divide by 16 and that caused quality reduction in the uploaded stuff. People found out that convert videos to 1920x1072 will result way better in quality.

Many followed the guideline to upload:
http://premoguild.com/forums/showthread.php?t=6048

Did youtube fix this issue already, or we should still upload our stuff in 1072 vp?

[newpball]

There was a time, where uploading 1920x1080 clips resulted in quite low quality because 1080 is not able to divide by 16 and that caused quality reduction in the uploaded stuff. People found out that convert videos to 1920x1072 will result way better in quality.

Don't believe it for a moment.

Probably one a story spread out by 'mod 16 purists' who are quickly losing their relevance.

[poisondeathray]

For AVC, 1080 is actually mod16 . Internally it's actually encoded as 1088 . There is crop frame flag that is part of the AVC spec.

Do you have some proof of this "way better quality" , even old examples? I don't believe it for a second

[Voxx]

I can't believe you guys don't know this blatant YouTube bug.

Here's some more info about this issue:

https://productforums.google.com/forum/#!topic/youtube/CYBQQGXMqqg

some examples (there are some good ones in the topic above aswell):
https://www.youtube.com/watch?v=ge5j7dPxpeE vs. https://www.youtube.com/watch?v=KkTO1bd8z7Q

My problem is all I can find on this topic is back in around 2011-12 then it ceased. Still can't find any official confirmation about this was being fixed.

[poisondeathray]

I can't believe you guys don't know this blatant YouTube bug.

Here's some more info about this issue:

https://productforums.google.com/forum/#!topic/youtube/CYBQQGXMqqg

some examples (there are some good ones in the topic above aswell):
https://www.youtube.com/watch?v=ge5j7dPxpeE vs. https://www.youtube.com/watch?v=KkTO1bd8z7Q

My problem is all I can find on this topic is back in around 2011-12 then it ceased. Still can't find any official confirmation about this was being fixed.

There is no problem now - just test it yourself

That's a completely different topic you linked to - interlaced handling and deinterlacing quality . That is and still a problem . I suspect the people did not do the testing correctly in some of those tests - they probably uploaded the wrong format to cause YT to deinterlace

Maybe you linked to the wrong topic and videos, or you should have a closer look, or maybe you're not comparing it correctly . That's NOT what is occurring in the 1080 vs. 1072 example. There is a massive quality difference when it gets deinterlaced - the text would become illegible . Some parts actually look better on the 1080 version, some worse - this is expected. But those differences are minor. There is not a massive quality loss, as you would expect from being deinterlaced