Bad/Grainy video quality after cut

[jouko]

Hi I'm having major issue with videos from my drone DJI Air 2s. Video clip in time line plays well quality is looks good, however soon as I cut bit of the video and play it as "project" it gets tiny white grainy particles to video when ever drone moves, but if I play it as "clip" in timeline it looks okayeis but it's bit jumpy.

I have spend good couple days googling around and testing suggested "solutions" but so far no luck. I'm extremely frustrated and ready to dump "Corel Video Studio Ultimate 2021" which I purchased last year unless someone can help me with this issue...

Resampling quality: Best
Hardware decode/encode enabled
Type: NVIDIA CUDA (does not really have any effect if changed)
Also Project settings "Show message when inserting first video clip into the timeline"



According time line properties Video from DJI is
Video type: H.264 High profile video
Total frames: 8715
Attributes: 24 bits, 3840 x 2160
Frame rate: 29.970 frames/sec
Data rate: 103407 Kbps

According Windows explorer those properties are followin
Frame with: 3840
Frame height: 2160
Data rate: 103331 kbps
Total Bitrate: 103331 kbps
Frame rate: 29.97

[Ken Berry]

Have you tried rendering without hardware encode/decode not selected. That is, use the Intel processor which is part of your CPU/motherboard rather than the separate GPU. It will take longer but a number of users have reported problems when using hardware acceleration selected.

[Davidk]

The resolution spec suggests it is an FHD or 4k clip. Ordinarily, to process these in edit mode 'smoothly', you would have to set smart proxy on, with a threshold of 720x576 (mpeg-2 for PAL, or equivalent for NTSC). Some systems have good enough hardware to play them 'as is' OK, but as soon as you increase the processor workload with edits, the result gets jerky (seems to stall for a moment on some parts then a quick catchup, and repeat). Jumpy is another way to put it. What smart proxy does is create a SD equivalent proxy file to work with, and it processes smoothly in edit mode. When you share/render it, all the edits you made to the proxy file are applied to the original clip as part of the render process.

So, set your preferences/performance tab to enable smart proxy, OK, then rt-click on the clip, and choose create smart proxy file. Depending on how long the clip is, that might take a while, but when finished there will be a small keyboard-like icon in the clip thumbnail. If smart proxy has been set before you import a clip, the smart proxy file is automatically created as long as you have the editor open. But otherwise create it manually.

With smart proxy set, does the clip/project play Ok when edits have been made??