So, I need to save up a lot of space on my hard drive so I'm encoding PNG files to lossless video so I can delete the PNG files. I'm encoding one at 72fps and one slightly slowed down to 60fps.
Let's say this is the command I use to encode to 72fps:
ffmpeg -framerate 72 -i png/%%06d.PNG -i audio/72.m4a^ -c:v libx265 -c:a copy -pix_fmt yuv444p -crf:v 0^ video/72.mkv
This is the 60fps command:
ffmpeg -framerate 60 -i png/%%06d.PNG -i audio/60.m4a^ -c:v libx265 -c:a copy -pix_fmt yuv444p -crf:v 0^ video/60.mkv
What would be the equivalent of the 60fps command if I want to encode it from the 72fps video file rather than the PNG files since they were deleted, but slow the video down to 60fps without dropping frames? If possible, I want to tell it to encode exactly at 60fps without using the
setpts video filter, and/or copy the video stream at a different frame rate (which I'm not sure if that is even possible).