Paul Atkin
lvl.2
Flight distance : 36962 ft
United States
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AlphaFlightNW Posted at 2-6 21:22
Hello! I would also need to know a few other factors, such as gimbal smoothness settings, speed of SD card/if you are writing to the internal storage, what firmware your on, that sort of stuff to better help. You could also look to do a gimbal calibration or post flight logs, I am not sure if gimbal would be recorded but you never know.
EDIT: Could you attach a video showing this issue?
hi, i think it can be put on hold for now as i did quite an extensive research during last 2 days and found several things...
First - it is unfortunate, but, gimbal yaw stabilization parameters are not adjustable. it would be nice to expose yaw stabilization slider in a same way as pitch is exposed - but it is not there. Pity.
Also, what i wrote above about behavior change after 90deg swivel up/down and stands true. it is all in the gimbal code.
Second - the fact that is not exposed does not mean that it works incorrectly. it works fine and footage is produced correctly. When played on the TV directly it is not showing any stutter.
Third - SD card issue can indeed be a factor, but in my case it was not. i repeated the test using 4 different types of cards. From all cards TV played footage fine. Youtube also shows files correctly after running its conversion.
Forth - the issue. the issue sits deep in the implementation of the DirectX 3.11 codecs inside of Windows 10 and integration to GPU.
The easiest way to see it just to run the caprtured MP4 or MOV file in VLC v3 - and in any pan scene with the yaw rotation it shows as a series of microstutters - very visible and very annoying. What did confuse me - as i would never bother much to react jsut to VLC - i saw the same thing in the DaVinci Resolve that I used all the time to edit footage from my Nikons - and i never had any issue in there dealing with the content produced by those DSLRs. Nevertheless, the specific codec used by Mavic in combination with the 4K30 10bit flow - that is the sole reason of this stuttering. I got now VLC nightly build - v4.0 and it resolved the issue a bit, it still stutters, but much less. i run Nvidia 1060 card - that also maybe the issue, but, for now i ran it to the end of what i could do and i will have to pause and see if anything will get resolved by the driver updates or something else.
Gimbal tracing the body is still an issue, in my opinion, but, so far after proper review of previous files - i see all panning yaw movements to be smooth enough. not as smooth as on my storm32 based custom gimbal, but, smooth enough. |
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