Flatsonar

Constrict

by Wartybix

Compress videos to target sizes

Broad permissions Verified creator GPL-3.0-or-later v26.4

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About

Constrict compresses your videos to your chosen file size — useful for uploading to services with specific file size limits. No more relying on online services for video compression, or the manual trial-and-error of re-encoding at various bitrates yourself.

Features include:

- An intuitive, easy to use interface. - Automatic calculation of average bitrate (ABR), resolution, framerate, and audio quality each video is re-encoded with to meet the target file size. - Bulk compression of multiple videos to one output directory. - Customization of framerate limits, to ensure a clearer or smoother image. - A choice of codecs to encode output files with, including H.264, HEVC, AV1, and VP9.

The app attempts to retain as much audiovisual quality as possible for the file size given. However, extremely steep reductions in file size can cause significant loss of quality in the output file, and sometimes compression may not be possible at all. All processing is done locally — and as such, compression speeds are only as fast as your hardware allows.

Permissions

1 permission weaken the sandbox. Flatsonar asks before installing.

  • X11 display: X11 lets apps read input and windows of other apps
    --socket=x11
  • inter-process communication (needed for X11)
    --share=ipc
  • Wayland display
    --socket=wayland
  • X11 display, only when Wayland is unavailable
    --socket=fallback-x11
  • GPU acceleration
    --device=dri

Who publishes this

The creator demonstrably controls this app id: Flathub verification, the hosting account owns the namespace, or a well-known file on their domain.

  • verified on Flathub: the developer proved they control this app id
    publisher:flathub

Maintenance

Recent activity on the upstream repository, or built and reviewed by Flathub.

No staleness signals: recent activity, or built and reviewed by Flathub.