h.264 problem

[Roei Tzoref]

just drag and drop into handbrake

Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials

[Jerry Smith]

OK, yes thanks. Strange that open didn’t work. So…

Good news: drag and drop worked.
Bad news: tried default and extreme settings, but no great improvement. Maybe lost one line of horizontal banding.

I’ll investigate more tomorrow. x264 may not be what I need. It’s designed for overall quality. I’ll have to look for an h.264 that is optimized for lower thirds. My stuff is really just that. Dave put his finger on it.

[Tero Ahlfors]

[Jerry Smith] “I’ll have to look for an h.264 that is optimized for lower thirds.”

Are you rendering these lower thirds for use in some other program like an NLE?

[Jerry Smith]

There not lower thirds. Their upper+middle+lower thirds. ? That’s the best way of thinking of them. Solids and text. I don’t even know what an NLE is

[Jerry Smith]

How do you know that 444 is not natively supported in iOS? The reason I ask is that the documentation is poor, old, and/or non-existent. We’re talking AVPlayer here, not MP. Moreover, just this month people having trouble with videos that played in iOS9 not working in iOS10. Bakir recommends using Safari to find out what is supported, but I just use XCode.

SO, I’m really curious where you got that information. More curious than I am about my problem that I started the thread with! 😀

[Tero Ahlfors]

[Jerry Smith] ” I don’t even know what an NLE is”

Non Linear Editor as in a modern editing software. If you would be exporting these to someone else as graphical elements I would use a proper visually lossless codec like Prores or DNxHD.

That said. There probably isn’t any channel where your footage would be shown with 4:4:4 chroma subsampling as it is mostly used in more advanced codecs during capture (eg. the Arri Alexa camera) or during post production. What one would send to TV broadcasters is usually 4:2:2 and video services usually use 4:2:0 so you are always losing some color information. This isnät usually a problem unless you use really strong colors. This is pretty much uncontrollable because of the limitations of the codec and this is what we explain to clients when the compressed version differ slightly from the master file. H265 will alleviate this to a point but it is also not in wide use yet.

[Jerry Smith]

Hey Tero,

Thanks. I asked a follow up question above about iOS. Maybe you didn’t see it?

[Tero Ahlfors]

[Jerry Smith] “Thanks. I asked a follow up question above about iOS. Maybe you didn’t see it?”

I answered it. Maybe you missed it?-)

[Jerry Smith]

I’m sorry, I don’t see any response. Here’s what I wrote:

“How do you know that 444 is not natively supported in iOS? The reason I ask is that the documentation is poor, old, and/or non-existent. We’re talking AVPlayer here, not MP. Moreover, just this month people having trouble with videos that played in iOS9 not working in iOS10. Bakir recommends using Safari to find out what is supported, but I just use XCode.

“SO, I’m really curious where you got that information. More curious than I am about my problem that I started the thread with! ?”

[Tero Ahlfors]

[Jerry Smith] “How do you know that 444 is not natively supported in iOS?”
[Jerry Smith] “SO, I’m really curious where you got that information.”

From the various Apple device specification pages. The latest iPhone 7 supports High Level 4.2 which means 8 bit video with 4:2:0 chroma subsampling. That said you could use a third party player that does the decoding without using hardware but if this is a video for a larger audience then they would need to have that too.