Samsung s7 4k footage

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Lukasz Dziechciarczyk

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Samsung s7 4k footage

PostFri Apr 07, 2017 12:14 pm

Hi guys,
I have a question about the best way I can edit the footage I have from my s7. I managed to work with proxies, I have everything cut how I want, but it seems like the footage is a bit choppy as if the frame rate conversion did a poor job. I have pieces with 29.xxx, 30 and 60 fps also some bits are 1080p. I'm the end I want to scale everything down to 1080p anyways in an output file. Can you advise how to do it? It's a first time doing it for me so please be patient with explanation.
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Andrew Kolakowski

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Re: Samsung s7 4k footage

PostFri Apr 07, 2017 6:44 pm

If this is for web usage you should use 30p project (you can't change this is you started with something different). Then for 29.97p you interpret as 30p. For 60p (if this is really 60p not 59.94p) you can leave as is- just drop to timeline. For 59.94p interpret as 60p.
If you let Resolve to do fps conversion then you will have many artefacts. In case of 29.97p, 30p, 60p it's easy to normalise to one fps (as above) by changing clip properties before dragging to timeline.
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Lukasz Dziechciarczyk

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Re: Samsung s7 4k footage

PostFri Apr 07, 2017 9:07 pm

Thank you for your answer. So the project was set to 23.9xx fps before I dropped the clips in. I think I made it like that because the 1080p is from the front camera which is 23.9xx fps. But that is ok, if I can get 30 fps converted smoothly to 23.9xx fps I'll be happy with that as well. So the project was set up to that but still it chokes. So do you think if the project was set to 30p it wouldn't choke ?
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Lukasz Dziechciarczyk

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Re: Samsung s7 4k footage

PostFri Apr 07, 2017 9:29 pm

P.S I just noticed that after loading the media into Resolve the fps is 60 or 30, but for some clips 16 or 10 ?! I would've thought it is because of the low shutter speed, but I have a clip pointing essentially at the sun with fps of 16. I'm confused.
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Andrew Kolakowski

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Re: Samsung s7 4k footage

PostFri Apr 07, 2017 10:45 pm

10 or 16 fps?
Not sure what source files you have then :)
If you dropped 30/60p files into 23.976p project then this is not good.
You should re-do it in 30p project.

Choke - means not play smoothly?
Resolve is terrible with h264 source handling, so you need to use optimised media.
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Lukasz Dziechciarczyk

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Re: Samsung s7 4k footage

PostFri Apr 07, 2017 10:48 pm

Yeah not smooth but at the output. Oh ok I see. I'll redo in 30p. Is it possible to somehow link the timeline? I so can't be bothered to do it all again if possible.
I even have 28fps all the way down to 10. I don't get it... Could it be that meta is broken?
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Lukasz Dziechciarczyk

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Re: Samsung s7 4k footage

PostSat Apr 08, 2017 11:12 am

Alright, so here is a twist:

1. I spoke to a samsung help and they said that the 30 fps will change depending on the lightning setting (I could understand that in low light I guess)
2. Resolve shows 21 fps for one clip but windows properties show 29 fps. I think resolve can't read meta in this case properly. Any ideas how to fix it ?


EDIT: Ok, so I put clips that davinci said to be around 16 fps and they are butter smooth on 30p timeline, some other that davinci claims to be 10 fps are quite choppy in the output file. I am really confused :D All in all - thanks for the advice, it definitely improved the experience : )
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Andrew Kolakowski

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Re: Samsung s7 4k footage

PostSat Apr 08, 2017 8:26 pm

Sorry, I noticed that it's Samsung s7 shot (not Sony 7S as a made it up in my head).
In this case it will be mess as this is not a proper recording. Fps will be jumping all over the place.
Such a files are poor and not really workable. You will never get anything decent out of it. Waste of time.
Best thing you can do is manually assume 30fps on each clip in properties (but than they some will run 2x faster).
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Lukasz Dziechciarczyk

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Re: Samsung s7 4k footage

PostMon Apr 10, 2017 12:39 pm

Yeah thanks for the help, I did that and indeed it's not workable much. Samsung said that what they suggest is record everything in FHD 60fps which is funny cause I do not want to do that xD

Anyways, I am very far from being a videographer and I do not aspire to be one, I only wanted to make a decent travel video from trips so I got a smartphone gimbal which was fairly cheap, but I guess until there is a way to somehow stabilize the fps it doesn't help in the end.

P.S Actually maybe it is possible. I was using auto, but obv there is a pro mode and I can set the shutter speed. So probably if I kept it faster than 1/30th maybe it would all be good, but I need to test it.
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Andrew Kolakowski

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Re: Samsung s7 4k footage

PostMon Apr 10, 2017 1:07 pm

For nice video from holiday you rather want something like Sony RX100- tiny and capable and as expensive as your phone :)
Mobile phone's 4K video will always need good light and will have massive rolling shutter issue.

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