Davinci Resolve Counterintuitive Performance Setting to Help

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Dave Dugdale

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Davinci Resolve Counterintuitive Performance Setting to Help

PostSun Jan 14, 2018 5:02 pm

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Robert Frank

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostSun Jan 14, 2018 7:52 pm

Great find. I've wondered about this. Audio waveforms are a necessity for what I'm doing and had assumed using the middle setting would be better, but suffered this lag too.
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John Paines

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostSun Jan 14, 2018 8:33 pm

You don't identify the codec, but if you use an intermediate intraframe codec, you probably won't see this lag on any of the 3 settings.

And if it's 4k h.264 material, you might get substantially better performance on Resolve Studio (looks like you have the free version?)
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Dave Dugdale

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostSun Jan 14, 2018 8:48 pm

I have the paid version. It is XAVCS footage.

I do use optimize media when I stack many 4k tracks.
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PeterMoretti

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostMon Jan 15, 2018 5:07 am

Thanks so much Dave, very well done!!
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Marc Wielage

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostMon Jan 15, 2018 5:26 am

Dave Dugdale wrote:I have the paid version. It is XAVCS footage. I do use optimize media when I stack many 4k tracks.

Is it Intraframe or Interframe? I think XAVC-S in the A7S is H.264 Interframe, which is Long-GOP. Not good for post. Transcode it to something with less overhead, like DNxHR or ProRes, and I bet the system will respond much better.
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Dan Sherman

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostMon Jan 15, 2018 8:06 am

Marc Wielage wrote:
Dave Dugdale wrote:I have the paid version. It is XAVCS footage. I do use optimize media when I stack many 4k tracks.

Is it Intraframe or Interframe? I think XAVC-S in the A7S is H.264 Interframe, which is Long-GOP. Not good for post. Transcode it to something with less overhead, like DNxHR or ProRes, and I bet the system will respond much better.


It shouldn't mater what the stupid codec is. If you're in single thumbnail mode, they should generate the thumbnail once and then cache it. The only time it should be re-rendered, is if it's been modified in some way.
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Sandro Circi

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostMon Jan 15, 2018 10:25 am

Dan Sherman wrote:
Marc Wielage wrote:
Dave Dugdale wrote:I have the paid version. It is XAVCS footage. I do use optimize media when I stack many 4k tracks.

Is it Intraframe or Interframe? I think XAVC-S in the A7S is H.264 Interframe, which is Long-GOP. Not good for post. Transcode it to something with less overhead, like DNxHR or ProRes, and I bet the system will respond much better.


It shouldn't mater what the stupid codec is. If you're in single thumbnail mode, they should generate the thumbnail once and then cache it. The only time it should be re-rendered, is if it's been modified in some way.


I heve to admit that I kinda agree with this. Just a few KiB (on bigger projects a few MiB) wouldn't hurt so much for caching unmodified clips, then update the thumbnail when the clips get modified or every t time or on project open and cleared on project close.

EDIT: Actually now that I think about it, all it takes to optimize this is to let the thumbnail generator wait while the clips are in playback and start to generate them while nothing is in play. Like the continuous thumbnail one.
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Re: Davinci Resolve Counterintuitive Performance Setting to

PostTue Jan 16, 2018 6:29 am

Dan Sherman wrote:It shouldn't mater what the stupid codec is.


In this case it actually is one of many of those issues that pop up with inter frame formats. However BMD's Rohit Gupta said that they are looking into this.
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Dave Dugdale

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Re: Davinci Resolve Counterintuitive Performance Setting to

PostTue Jan 23, 2018 3:10 pm

Wow that was fast BM, thanks for listening to my suggestion.
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