LosslessCut

{{Short description|Free software for video editing}}

{{Infobox Software

|name = LosslessCut

|logo =

|screenshot = 300px

|caption = Screenshot of LosslessCut in MacOS

|developer = Mikael Finstad

|released = 2016

|latest release version = {{wikidata|property|preferred|references|edit|Q104771861|P348|P548=Q2804309}}

|latest release date = {{wikidata|qualifier|preferred|single|Q104771861|P348|P548=Q2804309|P577}}

|latest preview version = {{wikidata|property|preferred|references|edit|Q104771861|P348|P548=Q51930650}}

|latest preview date = {{wikidata|qualifier|preferred|single|Q104771861|P348|P548=Q51930650|P577}}

|operating system = MacOS, Linux, Windows

|programming language = HTML5, JavaScript

|language = English

|license = 2021: GPL-2.0-only{{efn|GPL-2.0-only since 2021-08-25.{{cite web|url=https://github.com/mifi/lossless-cut/commit/b9e619b5acbe627e8ea7c1d67214af422d146d1f|title=Relicense to GPL|website=GitHub |date=2021-08-25}}}}
2016: MIT{{efn|MIT from 2016-10-30 until 2021-08-25.{{cite web|url=https://github.com/mifi/lossless-cut/commit/7b9923407bc28b7efd5e95014505a0166481f56c|title=Initial commit|website=GitHub |date=2016-10-30}}}}

|website = [https://www.mifi.no/losslesscut/ www.mifi.no/losslesscut]

}}

LosslessCut is a free, platform independent video editing software, which supports numerous audio, video and container formats.{{cite web|title=LosslessCut 3.30|periodical=|publisher=Techspot|url=https://www.techspot.com/downloads/6927-losslesscut.html|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|last=|date=2021-01-02|language=English|pages=|quote=}}{{cite web|title=LosslessCut|periodical=|publisher=Computer-Bild|url=https://www.computerbild.de/download/LosslessCut-16719799.html|url-status=|format=|access-date=2021-01-10|archive-url=|archive-date=|last=|year=2020|language=German|pages=|quote=}}

It is a graphical user interface, with MacOS, Windows{{cite web|title=LosslessCut|periodical=|publisher=Microsoft|url=https://www.microsoft.com/en-us/p/losslesscut/9p30lsr4705l?activetab=pivot:overviewtab|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|last=|date=2020|language=English|pages=|quote=}} and Linux{{cite web|title=LosslessCut 3.30|periodical=|author=Shekin|publisher=Mint Guide|url=https://mintguide.org/video/899-losslesscut-simple-and-fast-trimming-video-and-audio.html|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|date=2019-02-01|language=English|pages=|quote=}} support, using the FFmpeg multimedia framework. The software focuses on the lossless editing of the video files.{{cite web|title=Free Video Cutter LosslessCut Adds Multiple Cut Points, Video Merging Feature|periodical=|publisher=Linux Uprising|author=Logix|url=https://www.linuxuprising.com/2019/01/free-video-cutter-losslesscut-adds.html|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|date=2019-01-29|language=|pages=|quote=}} By copying the selected image sequences without transcoding or re-rendering, it achieves very fast creation of the target file{{cite web|author=Carsten Cashy|title=LosslessCut: Open Source-Software schneidet flott Filmclips|periodical=|publisher=|url=https://stadt-bremerhaven.de/losslesscut-open-source-software-schneidet-flott-filmclips/|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|year= 2020 |language=German|pages=|quote=}} in comparison to tools that re-encode frames.{{cite web|author=Ji M|title=LosslessCut – Super Fast Tool for Trimming / Cutting Video & Audio|periodical=|publisher=|url=https://ubuntuhandbook.org/index.php/2020/12/losslesscut-super-fast-trimming-cutting-video-audio/|url-status=|format=|access-date=2021-01-23|archive-url=|archive-date=|date=2020-12-03|language=English|pages=|quote=}}

Completely lossless copying is achieved when the source file is cut at the reference frames of a group of pictures only. This is being visualised when operating the program.{{cite web|title=Free Video Cutter LosslessCut Adds Multiple Cut Points, Video Merging Feature|periodical=|publisher=Linux Uprising|author=Logix|url=https://www.linuxuprising.com/2019/01/free-video-cutter-losslesscut-adds.html|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|date=2019-01-29|language=|pages=|quote=}}

With a size short of 100 MB,{{cite web|title=LosslessCut for Mac: Tool for lossless trimming/cutting of video and audio files|periodical=|publisher=MacUpdate|url=https://www.macupdate.com/app/mac/61073/losslesscut|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|last=|date=2020-12-16|language=|pages=|quote=}} the software is small and portable, thus it can be started from an external storage medium without prior installation. The FFmpeg framework needs to be present on the computer already.{{cite web|title=LosslessCut|periodical=|publisher=Softpedia|url=https://www.softpedia.com/get/Multimedia/Video/Video-Editors/lossless-cut.shtml|url-status=|format=|access-date=2021-01-13|archive-url=|archive-date=|last=|date=2020-12-15|language=English|pages=|quote=}}{{cite web|title=LosslessCut 3.30|periodical=|publisher=Chip |url=https://www.chip.de/downloads/LosslessCut_102655197.html|url-status=|format=|access-date=2021-01-10|archive-url=|archive-date=|last=|date=|year=|language=|pages=|quote=}}

Core functions

Essential functions of the software are:

  • Cutting videos and reassembling scenes in selectable order.
  • Separation of audio or subtitle tracks from video, or adding of a new track{{cite web|title=LosslessCut - The Swiss Army Knife of Lossless Video/Audio Editing|periodical=|publisher=Mifi|url=https://www.mifi.no/losslesscut/|url-status=|format=|access-date=2021-01-10|archive-url=|archive-date=|last=|date=|year=|language=|pages=|quote=}}
  • Concatenating multiple tracks with the same codec parameters{{cite web|title=Software: Video Editors: LosslessCut 3.30.0|periodical=|publisher=VideoHelp|url=https://www.videohelp.com/software/LosslessCut|url-status=|format=|access-date=2021-01-10|archive-url=|archive-date=|last=|date=|year=|language=|pages=|quote=}}
  • Multiplexing into selectable container format
  • Saving of single images (snapshots) in JPG or PNG format
  • Adjustment of metadata for rotation or orientation of the video
  • Zoomable timeline with annotation of the reference frames and jump functions
  • Display of thumbnails of the video and the waveform of the audio track
  • Display, name and reorder list of cut segments
  • Automatically saving the cut list in CSV format; import and export cut lists
  • Display the generated FFmpeg command line for individual adjustments

Limitations

Typically, the segment start will be "rounded to the nearest previous keyframe", thus the author emphasizes that the program is not meant for exact cutting. This limitation is by design to allow the cutting to be lossless, i.e. without re-encoding the frames adjacent to a cut for the codecs using interframe Motion compensation.{{cite web |title=History of Video Compression |url=https://www.itu.int/wftp3/av-arch/jvt-site/2002_07_Klagenfurt/JVT-D068.doc |website=ITU-T |publisher=Joint Video Team (JVT) of ISO/IEC MPEG & ITU-T VCEG (ISO/IEC JTC1/SC29/WG11 and ITU-T SG16 Q.6) |date=July 2002 |pages=11, 24-9, 33, 40-1, 53-6 |access-date=23 January 2021}} Though "smart cut", a feature allowing lossless encoding up to the nearest previous keyframe, then encoding the latter part at a cost of small loss, is available experimentally.{{Citation |last=Finstad |first=Mikael |title=mifi/lossless-cut |date=2022-04-22 |url=https://github.com/mifi/lossless-cut |access-date=2022-04-22}}

The file handling is not fully compliant with operating systems standards, in particular Softpedia reports awkwardness in the input selection window does not filter compatible files, or the output being saved in the same location without prompting.

See also

Notes

{{notelist}}

References