Image size vs. output size

[brian]

@bitsplice

I can resize the video to 3840x2160 and then position as necessary without loss of resolution using the SPR filter.

I am having trouble understanding your response. The video is 3840x2160 but you want to resize it to 3840x2160? If you output 1920x1080, from a 3840x2160 clip, you will lose resolution - unless you use a filter to crop out exactly 1/4 of the source clip - in which, 1/4 of the source will be preserved perfectly, and 3/4 will be lost because it was cropped out.

@bitsplice

I want to set the project to output the video at 1920x1080.

If your final goal is to export 1920x1080, then set the Settings > Video Mode to 1920x1080. This will ensure that what you preview during editing will match what you get out when you export.

@bitsplice

However, what I would like is the clip remain as a 3840x2160 within a 1920x1080 viewport (or monitor).

I do not understand what this means. Maybe you could provide a screenshot to illustrate what you want?

If @Austin 's guess is correct, and you want to crop out part of the source clip, then I recommend:

• First try using the Crop: Source Video Filter. This filter is the most efficient. And it operates on the original source resolution (not a scaled down version)
• Second, try using the Size, Position & Rotate Video Filter. This one also operates on the original source clip (when possible). But it uses more CPU resources because of the additional capabilities it offers.