https://bugs.kde.org/show_bug.cgi?id=491122
Bernd <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #3 from Bernd <[email protected]> --- (In reply to Uwe Dippel from comment #2) > Thanks for asking. > Quite often, I receive files with minimal editing required: Just lead and > trail need to be cut off, though at a precision of e.g. one frame. > > My current processing is loading the files into kdenlive, dragging to the > timeline, cut at those two locations, remove the leading and trailing parts, > remove spaces, and re-render. With my usually long clips of around one hour, > this takes considerable, unnecessary time. Plus eventually loss of quality, > when no rendering is necessary at all. > Depending on the inner workings of kdenlive, it might be possible within > kdenlive (??), if one could simply 'export' (in the sense of cut and paste) > one slice of the timeline, without any need to render. UI-wise something > like "Save this slice as file". > > Likewise, at times I take a note of the two points in the timeline, where > the original file needs cutting, write them down on a piece of paper, close > kdenlive, fire up ffmpeg and insert these cutting points as ffmpeg > parameters. > For this, the UI could display the editing actions (here: points of cut on > demand). The project bin already shows a count of editing actions, and then > it might be possible to just list those for an easy export, so that I could > write a small utility that reads the input file, the exported modifications > list of kdenlive (e.g. a text file containing something like "cut at > 00:56:38.12"). > > Should anything not yet be clear, please ask! Here is a thought: Create a new render preset/profile based on whatever profile you normally use. Go to the Other tab, enable manual editing, delete everything that is there, and enter "c=copy". The only thing Kdenlive is forcing is the file format, so you may need different profiles if you want to export a simply trimmed video in different containers. I tried this with a simply clip and it works but I have no idea whether mlt is playing ball and this approach cuts down time significantly enough for your use case. But I think it's worth a try before we engage in serious development of such a feature bypassing mlt and sending this straight to ffmpeg. -- You are receiving this mail because: You are watching all bug changes.
