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Encoding h.264 mov or mp4 beyond 4k and 8k

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Jonny Tully
Encoding h.264 mov or mp4 beyond 4k and 8k
on Oct 21, 2014 at 12:24:05 pm

We have some clients who are showing their video on huge screens and are requesting encodes at massive resolutions. The largest so far being 13600x768 and 3840x3240.

We are rendering from After Effects. Either as ProRes, Uncompressed or QT Animation. I'm currently trialling software that can make these huge h.264s but they often crash or fail to start at all. The closest i've got is with IFFMPEG (GUI for FFMPEG on mac) but although the encodes play in VLC they are pure white or black when opened in QT or MPEG Streamclip which wont work for the client.

We have a budget for some software that can do this and we arent able to use FFMPEG on the command line as the team who will be making the encodes aren't used to encoding.

Has anyone used any software that can handle this? I've contacted Sorenson and Telestream support but havent had anything back. I've also tried Media Encoder, Carbon Coder and OGG video.

Hope someone can help.

Thanks,
Jonny


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Ivan Myles
Re: Encoding h.264 mov or mp4 beyond 4k and 8k
on Oct 28, 2014 at 10:46:35 am

Maximum H.264 resolution is 4096x2304. Try encoding your videos at allowable dimensions such as 4096x231 and 2731x2304 to see if that is the root cause.


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Jonny Tully
Re: Encoding h.264 mov or mp4 beyond 4k and 8k
on Oct 29, 2014 at 10:07:05 am

Thanks Ivan. I was hoping for some kind of hack that would allow any resolution. Will keep looking!

Cheers,
Jonny

Training Colourist | London
http://www.jonnytully.com


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joe warner
Re: Encoding h.264 mov or mp4 beyond 4k and 8k
on Jun 16, 2016 at 10:37:56 pm

Hey Jonny,

Did you ever find a solution to this problem? I'm currently working on a project that needs a 6480x1920 video in an .mp4 format and keep it around 5gb. I'm testing out various setting with Handbrake, but I'm curious if you have found a better way to do this?


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