carta
etc1tool(1)

etc1tool1

Etc1 conversion tool

Usage

etc1tool infile [{--help | --encode | --encodeNoHeader | --decode}] [--showDifference difffile] [-o outfile]

Overview

etc1tool is a command line utility that lets you encode PNG images to the ETC1 compression standard and decode ETC1 compressed images back to PNG.

Default is --encode

Options

infile

The input file to compress.

--help

Print this usage information.

--encode

Create an ETC1 file from a PNG file.

--encodeNoHeader

Create a raw ETC1 data file (without a header) from a PNG file.

--decode

Create a PNG file from an ETC1 file.

--showDifference difffile

Write difference between original and encoded image to difffile. (Only valid when encoding).

-o outfile

Specify the name of the output file. If outfile is not specified, the output file is constructed from the input filename with the appropriate suffix (.pkm or .png).

History

  • Debian 13 (Trixie): the text shown here
  • Debian 12 (Bookworm)
  • Debian 11 (Bullseye)
  • Debian 10 (Buster)
  • Debian 9 (Stretch)

--decode since Debian 11 (Bullseye); --encode since Debian 11 (Bullseye); --encodeNoHeader since Debian 11 (Bullseye); --help since Debian 11 (Bullseye); --showDifference since Debian 11 (Bullseye).

Authors

The Android Open Source Project.

From etc1tool 34.0.5-12 in Debian 13 (Trixie). Parsed by carta from the page's man source.