I’m referring to the OOC video samples you posted to Dropbox, what else could I be writing about?
Please explain this comment.
This will result in a file size many times larger as there will be zero compression applied, but won’t improve the quality in the slightest.
Remember, your OOC (Out Of Camera) files are already heavily compressed. They are Decompressed when open in any video editor (just as compressed JPEG images are decompressed when opened in any photo editor).
The default settings are generally based on best output and give good results I have found. But if you apply any filter it will degrade the quality, if you zoom even the slightest amount you are amplifying [magnifying visually] the original artifacts and also invoking interpolation which adds pixels in order to fill the 1920x1080 space. This always results in more ‘mushiness’ [smearing].
In short, my conclusion is that your footage is not forgiving of editing because it is low quality highly compressed video from a tiny sensor in the first place. Play one of those video files and pause it, you can see lot’s of pixelization, smearing and other compression artifacts, so you’re starting with a poor quality source file to begin with.
Example: Here’s a still taken from your original video file, with a crop which highlights your problem with your source.
1920x1080 frame capture.
100% crop
Try as you may, you will never get results even the same as this once edited (especially with filters applied) then re compressed for export. Of course you then have Youtube to contend with. You might find that you need to export at 720p [SD] for more acceptable results.