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What happens when you uncheck "Enable Intel H.264 acceleration decoding"?

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Ashley Davis
What happens when you uncheck "Enable Intel H.264 acceleration decoding"?
on Mar 29, 2017 at 12:51:40 pm
Last Edited By Ashley Davis on Mar 29, 2017 at 12:51:49 pm

I've had a recurring issue with editing some 4K footage where when playing the footage back it showing a solid red frame instead of and video.

I've spoken with Adobe customer service who told me this is a known issue and to go into Edit-Pref-Media and uncheck "Enable Intel H.264 acceleration decoding".

This has fixed the issue but I'm wandering if my PC is affected in any way by doing this or what exactly it has done.


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Alex Udell
Re: What happens when you uncheck "Enable Intel H.264 acceleration decoding"?
on Mar 29, 2017 at 1:17:44 pm

If I had to guess....

It sounds like some Intel Processors may have some special hardware functions that can accelerate the the decode of H264. However in the case of your specific media...there's something just different about it, where it causes the red frame.

Disabling the hardware...means that fixed specialized hardware isn't used...and it's handled as a typical software decode or by other aspects of the Adobe's "mercury playback engine" tech (say a Graphics card)....this may result in slower performance, but you will get a result without the red flash....

Alex Udell
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