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5600x1050 H264 Problems

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Brandon Adams
5600x1050 H264 Problems
on Jun 13, 2011 at 8:56:57 pm

Reading the subject title, I'm sure you're saying "duh". I'm working on a video for a special presentation room. It is essentially the width of 5 screen captures, which is what the video consists of.

I did everything in FCP, but was limited by the sequence size of 4000px in FCP. Exporting that from FCP to H264 MOV was fine. However, the client requested it be done at the full 5600x1050, so I brought it into Premiere CS5, which let me edit at that resolution. However, Premiere won't let me export an H264 (using MainConcept) at larger than 2000px. I was able to export 5600x1050 from Premiere using x264, but that showed up garbled on the client's computer.

I am able to export using the animation codec, or uncompressed from Premiere at the full res. But if I try to convert that file to H264, it just gets garbled. Below are screenshots:

Uncompressed 5600x1050:
http://gyazo.com/e2336f04d60ce4f4f8607bb943ef1035

H264 5600x1050 converted from Uncompressed:
http://gyazo.com/f6fe682f8b42b9d0d6f3b46a072f2f12

Any ideas how I can get a 5600x1050 H264 from Premiere?

-Brandon


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Craig Seeman
Re: 5600x1050 H264 Problems
on Jun 13, 2011 at 9:27:18 pm

[Brandon Adams] "Any ideas how I can get a 5600x1050 H264 from Premiere?"

Can you export that using the codec you're editing with and try encoding that in another app? You could try Compressor but that too may be limited to 4000.

You could try with MPEGStreamclip but it might also be worth testing with professional encoders such as Telestream Episode and Sorenson Squeeze. They both have downloadable demo versions.



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Brandon Adams
Re: 5600x1050 H264 Problems
on Jun 13, 2011 at 10:49:58 pm

It appears to be a limitation of H264. I am able to convert to H264 up to 5000, but when I try 5600 it gets garbled.

-Brandon


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Craig Seeman
Re: 5600x1050 H264 Problems
on Jun 13, 2011 at 11:25:09 pm

It appears you may be exceeding the maximum even under Level 5.1
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC
See column on the right end.
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC#Levels

I could suggest trying another codec but it's such a large frame size I'm not sure where you'd find the solution.

Alternately you could cut it in half and live with doubling.



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Brandon Adams
Re: 5600x1050 H264 Problems
on Jun 13, 2011 at 11:31:38 pm

Thanks Craig

-Brandon


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Anders Larsen
Re: 5600x1050 H264 Problems
on Dec 4, 2013 at 11:39:16 am

I've just run into this problem with a 6380x768px video wall.

Strangely I'm able to export usable h.264 with these dimensions from Apple Motion 5, but everything else I've tried (Compressor, MPEG Streamclip, Cinema 4D) gives me garbled video.

It's not an ideal solution, but you can get h.264 in 5600x1050 by putting your file into Motion and exporting from there.


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