This format takes around 30% less space than HuffYUV with color fidelity that is visually (although not mathematically) identical. There is currently not a DNxHR export profile in Shotcut, but you can encode directly with ffmpeg by using -c:v dnxhd -profile:v dnxhr_hq and put the result in a MOV container. It is also a very fast format that holds color very well. This is the format for ultimate performance and perfect color.ĭNxHR HQ (4:2:2 8-bit only) in a MOV container. The trade-off for this speed is massive file sizes. Its subsampling is also in Shotcut-native 4:2:2, meaning there is no CPU spent on conversion. This format has the least aggressive compression, meaning it decodes the fastest. HuffYUV (4:2:2 8-bit only) in a MKV container. These are the four codecs I would recommend, each for a different reason: The prores_ks encoder is also slower than other encoders by a factor of 3 on my computer. So there is some disk space lost representing colors that may never be seen. ProRes is a 10-bit format but Shotcut is a mostly 8-bit editor. I tend to not use ProRes in ffmpeg-based programs because of encode/decode speed and because of file size. Hi GIS, I’ve studied this question quite a bit lately. What are Your codec-suggestions for Video and Audio, if the best performance (least CPU usage) is focussed? Is ProRES suggested for Video, or something else?Īm I maybe missing some settings, which could increase performance during edition and playing the clips? So the general question: Which are the best (performance wise) file formats (Audio and Video) I should convert my source clips to prior editing, to have the best performance and as little lag (CPU usage) as possible during editing? I have been using VideoStudio, which seems to handdle these files better under a performance aspect, but there are reasons, that VideoStudio in not at all an option for me - I have way too many issues for a paid software and therefor I want to participate in the Open Source software-movement, if possible. The current try with H.264-Files is very laggy and I am considering re-encoding to other formats prior editing. I am on Win 8.1 64bit with 8GB Ram and I7-4500U CPU and Shotcut-Version 19.06.15. In my case I want to edit two cameras (differnet angles) on two Video tracks (1080p, 30/60FPS), plus one Audo track.Ĭurrently the preview (playing the Videos in the Editor) is very laggy. With this in mind, I would like to address a question further below in a general manner, where I could not yet find the answer. As far as I understand, ShotCut does not work with (resolution-reduced) proxy-files for editing.
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