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.TH "ETC1TOOL" "1" "" "" ""
.hy
.SH NAME
.PP
etc1tool - ETC1 conversion tool
.SH SYNOPSIS
.PP
\f[B]etc1tool\f[R] \f[I]infile\f[R] [--help | --encode |
--encodeNoHeader | --decode] [--showDifference \f[I]difffile\f[R]] [-o
\f[I]outfile\f[R]]
.SH DESCRIPTION
.PP
\f[B]etc1tool\f[R] is a command line utility that lets you encode PNG
images to the ETC1 compression standard and decode ETC1 compressed
images back to PNG.
.PP
Default is \f[B]--encode\f[R]
.SH OPTIONS
.TP
\f[I]infile\f[R]
The input file to compress.
.TP
--help
Print this usage information.
.TP
--encode
Create an ETC1 file from a PNG file.
.TP
--encodeNoHeader
Create a raw ETC1 data file (without a header) from a PNG file.
.TP
--decode
Create a PNG file from an ETC1 file.
.TP
--showDifference \f[I]difffile\f[R]
Write difference between original and encoded image to
\f[I]difffile\f[R].
(Only valid when encoding).
.TP
-o \f[I]outfile\f[R]
Specify the name of the output file.
If \f[I]outfile\f[R] is not specified, the output file is constructed
from the input filename with the appropriate suffix (\f[B].pkm\f[R] or
\f[B].png\f[R]).
.SH SEE ALSO
.PP
https://developer.android.com/tools/help/etc1tool.html
.SH AUTHORS
The Android Open Source Project.