I am new here, but I use Shotcut for longer time already (since v12 or v14). The head of topic tell everything actually and some may say ‘so why do not use mp4tools…’ ok, we have mp4tools, but I mean ‘the idea’.
I got Shotcut as reliable, very reliable program - joining abt 200 cut clips at 1920/60p from gph5b and exporting it as large mp4 file (15GB, I know it may has no sense) and Shotcut supported me within 2 days of continue work without hangs (I wanted to show/share my trip). Export was done within abt. 5-6hrs with max cores cooking on 6700k. All as per settings and expectations.
But then I found something like mp4tools (free) and bandicut (share) and did joining mp4 files without applying filters and without encoding. Joining (exporting) mp4 size 1-2GB is within seconds! (on sams960pro) for mp4tool and some longer for bandicut (claiming usage of quick sync). As description says mp4tools uses ffmpeg as Shotcut, so it may be possible to implement in Shotcut such possibility - export with no encoding (if only cuts were done).
It would be very helpfull option as quality of output from gph5b is completely sufficient for me (despite of wide complains abt gph5 on most forums).
Thank you in advance. That is just idea which may work well. In such case no CUDA talk is expected for exporting.
(Of course CUDA, Quicksync with file export is the mostly expected thing by everybody, including me)