Please excuse me if the length of this email is a “little” long.
I have been teaching myself the basics (!) of video editing / Shotcut off and on for a year now.
Although I do understand the rudimentary aspects of videos, containers, image quality, filesize, codecs, etc., I realize I have just scratched the surface.
Currently, I am trying to wrap my head around a “discrepancy” I have noticed.
I shoot video with an Inspire 1, Zenmuse Z3 camera that is set to 4k / automatic everything. Basically, I end up with a file that is a MPEG-4 that uses either a mp4 container playable using JVT profile / avcl codec or a MPEG-4 that uses a mov container playable using QuickTime profile / qt codec.
The videos I have shot will play back smoothly in Windows 10 Movies & TV media viewer. However, when played back in Shotcut 19.06.15 (and earlier versions) the video will “stutter” and skip frames consistently. When I play this same video in VLC, I get a similar “stuttering”. I don’t get it in Window’s Movies & TV media viewer.
As a point of reference, it seems I get the same results with either the mp4 container or the mov container from my microSD card (rated at v30), my local primary or secondary hard drive (both different hardware specifications), across over several networks, and through two different servers. I am on a newer computer (I5-8500, 3 gigahertz, 6 core, 8gb memory). My older computer had 16 gigabytes of memory, but a slower process (3 or 4 years old – I do not remember the CPU) and I had similar issues.
I am very curious if I had made a configuration change to ShotCut or that this is what I am going to have to live with. Currently, my playback settings are
Real-time (frame dropping) is selected... Progressive is selected... Deinterlacer = one fileld (fast) Interpolation = Bileaner
Ultimately, I am after the same playback quality in Shotcut that I am experiencing with Windows Movies & TV media viewer.
Thank you for your time and attention.
JOHN TRACEY BENNETT – SIU / PSO Unmanned Aerial Vehicle Administrator
FAA Certified sUAS / UAV Operator (active)
Chief Engineering Draftsman
CAD Systems / Archive Systems Coordinator
PLANT & SERVICE OPERATIONS
MAIL CODE 6727
SOUTHERN ILLINOIS UNIVERSITY
210 PHYSICAL PLANT DR
CARBONDALE, ILLINOIS 62901
E: JohnB@PSO.SIU.edu / JohnB@SIU.edu