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Canon DSLR h264 transcodes very slow?

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Jonathon Lee
Canon DSLR h264 transcodes very slow?
on May 21, 2014 at 10:56:41 pm

Hey Folks,

What is the expected performance when transcoding Canon h264 .mov files to DNXHD 145? I'm using a new MacPro 12-core, 64gb, dual d700 GPU., fast 8gb FC stornext SAN (does about 800-900 mb/s).

I'm only getting about 36fps. Is this normal? I seem to be getting the same performance form our 6-core machines with d500 GPU's.

Media is h264, 1920x1080, 23.976, .mov wrap.

The CPU utilization barely registers -- about 80% idel.

I think on a 4,1 12-core 2.66 with gtx570 2.5GB I get much better performance. Could this be a 10.9 thing?

thanks,

Jonathon


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Marc Wielage
Re: Canon DSLR h264 transcodes very slow?
on May 22, 2014 at 4:36:56 am

H.264 is a pain in the ass no matter what you do.


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Ryan Holmes
Re: Canon DSLR h264 transcodes very slow?
on May 22, 2014 at 1:55:28 pm

What Marc said.

You may try downloading Adobe Creative Cloud and try out Adobe Media Encoder. That's what I transcode footage through and it's the fastest encoder/transcoder I've seen (though Telestream Episode gives it a good run for it's money).

Ryan Holmes
http://www.ryanholmes.me
@CutColorPost


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