I’m finding frame-by-frame scrubbing buggy, when everything else (including playback) seems to work as expected.
I occasionally use Shotcut 21.06.29 (i see after July, this is important) on a laptop which is not hugely powerful i3 / 8gb ram intel HD3000 integrated graphics.
I’m generally editing 1080p video.
I noticed yesterday that while playback of 1080p .mp4 video is fine in the preview and timeline views, Shotcut struggles (lags) when I scrub one frame forward or back (via the arrow keys). Audio scrubs fine. It’s just the video which freezes on a certain frame for a while.
This seems counter intuitive to me, how can Shotcut not render 1 frame per keypress, when it’s happy rendering 30+ per second in playback?
Firstly, thanks for the reply, it’s great shotcut has such a good community.
No disrespect, but I’d hoped the first answer wouldn’t be proxy. I’d rather learn other editors which don’t need me to use proxy.
For example, neither blender nor KDEnlive suffer the problem described below, using 2560x1440 footage on the same machine.
The reasons I am (trying) to use Shotcut are:
(1) because I can’t get a fast enough workflow in blender because of the UI.
(2) for consistency; my main PC (i7, 16gb ram) has an Nvidea card, which doesn’t play well at all with the current build of KDEnlive, and I’ve had no responses to my support requests from the KDEnlive Community.
With that out the way, I’m happy to elaborate on my workflow. It’s fairly standard. What do you need to know?
If it helps, I use frame-by-frame for the same reasons most do. Setting in and out points (preview and project views), aligning clips with audio beats / SFX (project view).
Also try restarting your computer and only use Shotcut when editing, leaving all other applications off. If your data drive is an HDD (Hard Disk Drive) and if it’s the only one you have, that is the slowest way to do video editing.
Yes it is a low end processor 2310m (the whole machine cost me £32)
On the sysreq, my cpu is 2 cores short for HD, but has enough ram. However preview lag is only present when skipping individual frames with the keys. Playback (space) and scrubbing (with mouse) are acceptable.
Again, no disrespect, but all I’m hearing is “your PC is too cr*p), so there must be no other problem”.
I’m not saying that’s not the case, its a very low end device. However, needing proxy in Shotcut in order to skip individual frames with the arrow keys is disappointing when (as above) KDEnlive and blender work fine on this machine.
Edit: I should also say, it has an SSD
Before I proxy a project to test. Is there anything else I can try?
One further post to say, while batch convert (see above) does work as a solution. I’ve now got this working without needing to do that. Simply by changing the settings on my camera. so that the footage is h.264 / aac in an .p4 container.