question cli v0.9.0 | output image not video [enhancement]

[abcnorio]

Thanks for the cli interface, pretty cool!

Question:

Is it possible to have the "save frame" option from the GUI also in the cli? At the moment it can be achieved by using:

./target/release/ntsc-rs-cli -i demo.jpg -p settings.json  -o OUT.mp4 --fps 30 --duration 00:00.10 --overwrite
ffmpeg -i OUT.mp4 -vf "select=eq(n\,1)" -vframes 1 OUT-ntsc-rs.png

Reason is that I have to convert a lot of images (not videos) to prepare them for a fine-tuning of some real-ersgan model for SVHS upscaling and this tool here is invaluable to get the SVHS outlook. So the output of the rendering should be an image and not a video. Of course the procedure above works fine (tested it) but a direct image output would speed it up for a lot of images.

Thanks!