Choppy/stuttery Playback

Get answers to your questions about color grading, editing and finishing with DaVinci Resolve.
  • Author
  • Message
Offline

HughDiMauro

  • Posts: 9
  • Joined: Sun Dec 08, 2019 10:54 pm
  • Real Name: Hugh DiMauro

Choppy/stuttery Playback

PostWed Jan 22, 2020 2:21 am

Here's my conundrum:

1) I am editing UHD 400 Mb/s ALL-I 24p 10 bit 422 video from a Panasonic GH5.
2) I loaded all of that video on three (3) 10 terrabyte Seagate Barracuda HDDs in a Windows 10 software RAID 0 for a total of 30 terrabytes.
3) I applied no effects or correction and did not layer or stack video tracks on top of each other.
4) During timeline playback the video appeared stuttery after playing for a few moments. When I stopped playback, then started again, the stuttery playback stopped temporarily but soon after resumed, as if the hard drives could not keep up with the video. I also use a Blackmagic Decklink Mini 4K card connected to a 4k monitor. The timeline monitor FPS indicator light remains green and constantly shows 24 fps playback.
5) My hardware exceeds the Davinci Resolve technical requirements.
6) I replaced the HDDs with three (3) Samsung, 4 TB SSDs in a software RAID 0. The playback is still stuttery.
7) Am I to assume I need to set up proxy files? How does that work if I am not applying effects and there are no red lines above my timeline clips? I am confused as how to set up proxy files in order to playback smoother video files rendered at a lower resolution.

Thank you.
Offline

Jim Simon

  • Posts: 5630
  • Joined: Fri Dec 23, 2016 1:47 am

Re: Choppy/stuttery Playback

PostWed Jan 22, 2020 3:20 pm

HughDiMauro wrote:Am I to assume I need to set up proxy files?


I recommend it for all H.264 media. I'm partial to the Cineform 10 bit option at 1/4 resolution.
Offline

Jim Simon

  • Posts: 5630
  • Joined: Fri Dec 23, 2016 1:47 am

Re: Choppy/stuttery Playback

PostWed Jan 22, 2020 3:20 pm

HughDiMauro wrote:I am confused as how to set up proxy files


Read the manual on Optimized Media.
Offline

HughDiMauro

  • Posts: 9
  • Joined: Sun Dec 08, 2019 10:54 pm
  • Real Name: Hugh DiMauro

Re: Choppy/stuttery Playback

PostThu Jan 23, 2020 2:08 pm

I decided to do that after my post since its better to seek on my own before I pester the forum with incessant questions. Thank you.
Offline

HughDiMauro

  • Posts: 9
  • Joined: Sun Dec 08, 2019 10:54 pm
  • Real Name: Hugh DiMauro

Re: Choppy/stuttery Playback

PostSun Feb 02, 2020 9:59 pm

Do I need to optimize media for stuttery playback even though the timeline FPS indicator on the playback monitor shows a steady green and steady 23.97 playback?
Offline

Jim Simon

  • Posts: 5630
  • Joined: Fri Dec 23, 2016 1:47 am

Re: Choppy/stuttery Playback

PostSun Feb 02, 2020 10:35 pm

The question doesn't make sense. At full speed, there won't be a stutter.

You're sure timeline and media frame rates match?
Offline
User avatar

Charles Bennett

  • Posts: 1020
  • Joined: Sat Nov 05, 2016 11:55 am
  • Location: United Kingdom

Re: Choppy/stuttery Playback

PostMon Feb 03, 2020 1:16 am

Hugh, try selecting "Show All Video Frames" to see if that helps.
Attachments
Show all.jpg
Show all.jpg (77.59 KiB) Viewed 64 times
Dell XPS 8700 i7-4790 @ 3.60GHz, 24GB RAM, GTX 1060/6GB (441.66 Studio Driver), Win 10 Home-Build 18362, Resolve 16.1.2 (free), Dual Monitors.
Dell 490 Workstation, 2 X 4 core Xeon , 16GB ECC RAM, GTX 650, Win 7 Ultimate, Digi 002R, Pro Tools 2018.7

Return to DaVinci Resolve

Who is online

Users browsing this forum: Dermot Shane, Dmitry Kitsov BMD, Google Feedfetcher, mrmou1988, reman1964, Thomas Dove and 73 guests