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Kipowi 0.1.0

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@Staiola Staiola released this 07 Sep 00:05

A player and exporter for video and audio, by Jesper GB Henriksen.

Open a file, play it, set an in and out point, crop the picture, and for audio files change the level over parts of the waveform. Then write a new file containing exactly that. One clip at a time: no timeline, no layers, no project file.

Opens

  • Video: H.264, HEVC and ProRes in MOV, MP4 and M4V
  • Audio: WAV, AIFF, FLAC, MP3, M4A, AAC, ALAC
  • Blackmagic RAW, decoded through Blackmagic's SDK, with sound and metadata
  • Image sequences: PNG, TIFF, TGA, EXR, JPEG, WebP, HEIC, SGI, BMP. Open one frame and it finds the rest

Exports

  • Movies: MOV or MP4, H.264, HEVC or ProRes, full or half scale
  • Audio: WAV, AIFF, M4A, MP3
  • Frame stacks: PNG, TIFF (none, LZW or ZIP), TGA
  • Frame grabs as stills

The export panel states the range, frame rate, output size and estimated file size before it runs, and hides controls that mean nothing for the file in front of it.

Trimming a frame stack to the same format copies the frames byte for byte rather than re-encoding them. The panel says which it will do before you commit.

Install

Open the disk image and drag Kipowi to Applications.

Requires: macOS 14 or later. Universal for Apple silicon and Intel. Signed with a Developer ID certificate, notarised by Apple and stapled, so it opens without a Gatekeeper warning even offline.

Known limits at 0.1.0

  • LUTs are preview only. A graded view still exports ungraded
  • Nothing is remembered between launches: LUT choice, decode scale and display aspect all reset
  • DPX and Cineon are not supported. FLAC is import only
  • HDR passes through untouched, with no tone mapping
  • Full 6K RAW playback tops out near 24 fps. Lower the decode quality for smooth scrubbing

Project page: https://jesperh.cv/apps/kipowi.html