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Plans to support Intel Quick Sync?

PostPosted: Wed Jun 06, 2018 9:06 pm
by RCModelReviews
Intel's Quick Sync Video (QSV) is a great (underrated) aspect of the recent generation processors and I use it extensively via Handbrake for transcoding. It's kind of cool to see your video being transcoded to HEVC in near-realtime while the CPU sits there idling.

Is there any plan for BMD to introduce support for QSV in Resolve?

Although you can get better quality renders using a software-only CODEC, the speed and utility of being able to offload this process onto the inbuilt hardware CODEC in the Intel processors makes it great for pre-final renderings and multi-tasking.

Re: Plans to support Intel Quick Sync?

PostPosted: Thu Jun 07, 2018 12:18 am
by Chip.Murphy
Resolve 15 supports hardware decoding for h.264 and HEVC.

Re: Plans to support Intel Quick Sync?

PostPosted: Thu Jun 07, 2018 3:43 am
by Uli Plank
But you need to understand that QuickSync is limited in the choice of formats. Once you leave those behind, HEVC encoding in particular is very sloooow.

Re: Plans to support Intel Quick Sync?

PostPosted: Thu Jun 07, 2018 9:55 am
by Hendrik Proosa
Uli Plank wrote:But you need to understand that QuickSync is limited in the choice of formats. Once you leave those behind, HEVC encoding in particular is very sloooow.

So, as it is limited to some formats, it is better to not use the speed advantage for those formats at all because for something else it is still slow? What kind of contorted logic is this? Encoding side is always easier than decoding because one can choose which subset of codec to support and articulate it to end users. It is not so hard to put it down in writing that this and that feature is supported in hardware encoder and this and that is not and using those will default to slower encoder.

Re: Plans to support Intel Quick Sync?

PostPosted: Thu Jun 07, 2018 11:53 am
by Uli Plank
Well, I never denied that QuickSync is helpful when it can be used (the Mac uses it all the time too).
I just wanted to give a warning in case some readers might have false expectations.