etc1tool - ETC1 conversion tool
etc1tool infile [–help | –encode |
–encodeNoHeader | –decode] [–showDifference
difffile] [-o outfile]
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
- 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).
https://developer.android.com/tools/help/etc1tool.html
The Android Open Source Project.