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h.264 problem
I create a 1920×1080 AE comp with two pixel perfect solids and some text. There seems to be no way for me to get it into h.264 without getting the horizontal bands. Strangely, the text is unaffected. This is highly repeatable. I have tried it on different computers with different versions of AE (2014 and 2015). I guess it is really an encoding question. My next step is to educate myself in the ways of ffmpeg so that I can experiment with a (much) bigger number of h.264 codecs. Before I go and become a veritable codec guru I thought I’d see if one of you guys knows what’s going on.
Thanks
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21 Replies
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You’re probably seeing what happens when you export to a codec with lower chroma subsampling.
More info here: https://en.wikipedia.org/wiki/Chroma_subsampling -
Thanks.
You know though Dave, I actually don’t care much about file size. I just need it to be h.264. So, I’m actually looking for the least lossy version of h.264.
Thanks Tero. I think you are on the right track. I did read something along those lines and I will investigate more.
Do either of you, or anybody else for that matter, know the pros and cons of the different kinds of h.264 codecs?
Moscow State University does a well respected test of the different codecs every year. Six years ago, x264 was regarded as the best. But there are many others now and x264 is no longer the winner.
MAIN QUESTION MOVING FORWARD: WHAT H.264 IS BEST FOR STRAIGHT HORIZONTAL AND VERTICAL LINES???????????!!!!
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[Jerry Smith] “WHAT H.264 IS BEST FOR STRAIGHT HORIZONTAL AND VERTICAL LINES???????????!!!!”
A 4:4:4 chroma subsampled one. The thing is that not all services/players/software support it. For example the Premiere Pro Mainconcept will either show these in black and white or they won’t work at all.
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Try Handbrake https://handbrake.fr/ which is a free x.264 encoder. tweak it and see if you get better results than AME and let us know. bare in mind that using highly contrasting colors and sharp angles is a tough test for a lossy compression.
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials -
Hey Tero. First order of business is iOS. Do you have a list of ones that are 222?
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Hey Roei. I’m trying to figure out what intermediate encoder to use. It seems I need one. Handbrake doesn’t like Animation.
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I meant 444, not 222.
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Animation is what I used when I encoded with Handbrake. what seems to be the problem? you can also try DNxHD or PNG
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials -
I’m probably doing something wrong. Everything is greyed out. For both Animation and ProRes4444, it’s greyed out and says no valid source found. I’m using Open under File menu.
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[Jerry Smith] “First order of business is iOS”
The 4:4:4 profile is not natively supported in iOS.
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