Bad quality of proxy clips and other issues/confussions
I am deeply confused about how to make my project work smooth. My computer is more than capable. I have an Nvidia graphics card and kdenlive recognizes that. My understanding is this:
- The proxy clips are rendered clips of a certain quality that you specify in the project's settings.
- The timeline preview is different and it will render the selected zone together, in yet another format you choose, and split the clips into some 25 frames each.
- The main "render" process is the final step and it is yet of another format you choose.
- The timeline "quality" selector...does what? What clips does it use?
So I am deeply confused about what profiles to use for what. I tried this for proxy:
-vcodec h264_nvenc -vb 900k -rc cbr -acodec aac -ab 190k
and the quality is very bad. If I tweak the -vb then the quality improves but the video playback is not smooth. Interestingly eve with the above profile some videos are very choppy when I play them in the timeline, despite the extreme low quality.
I also tried the automatic profiles and they work better. But it then fails to create proxy clips for .webm videos....with:
f=mov vcodec=hevc_nvenc vb=3000k acodec=aac ab=192k
[NULL @ 0x24db9c0] Unable to find a suitable output format for 'f=mov'
f=mov: Invalid argument
Shouldn't Kdenlive have some automatic settings so that when people add videos to their timeline, they will be converted (proxy clips) into some decent resolutions? Like we have a Peertube instance (video platform) and it auto converts videos into different resolutions. So that I don't have to tweak those commands all the time. Honestly I do not even understand all of what they do.
So what is the best way of making the timeline run smooth and have proper proxy clips?
Cheers!