On Sat, 21 Sep 2019 13:59:23 +0800 Turritopsis Dohrnii Teo En Ming <teo.en.ming.smartphone@xxxxxxxxx> wrote: > What I mean is combining multiple smaller 4K video clips into a > bigger, single 4K video and at the same time, allowing me to add > layers of watermarks into the 4K video. Disclaimer: haven't done this, not an expert If you are concatenating several segments of 4k video, that should be fast because there is no encoding or decoding. It would be best to do this as a separate step, creating the final concatenated video as an output. untested ffmpeg command to concatenate all the files ffmpeg -i [list of input files] -codec copy [concatenated output file] yields a single file of a name you choose containing all the input files in the order you list them Adding the watermark is the piece that takes so long, because the video has to be decoded, every frame filtered to add the watermark, and re-encoded before writing to the output. untested ffmpeg command to watermark the video, single line ffmpeg -i [concatenated output file] -i [watermark overlay image] filter_complex 'overlay' [watermarked output file name] You should make the watermark file the same pixel dimensions as the frames of the video you want to overlay to prevent image distortion. see man ffmpeg for more explanation > I am using Vegas Movie Studio Platinum 15.0 for Windows 10. I think it > is aware of the 6 cores of my Intel Core i7-5820K processor. But I am > not sure whether it could benefit from 16 cores or 18 cores. The documentation should tell you that, or you can look up their site faq online to see, or ask their help support online. I am not familiar with that software, so I don't know. _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
