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HEIF-ENC(1)		     General Commands Manual		     HEIF-ENC(1)

NAME
     heif-enc - convert image to HEIC/HEIF

SYNOPSIS
     heif-enc  [-h|--help]  [-q  QUALITY|--quality  QUALITY] [-L|--lossless] [-t
     SIZE|--thumb SIZE] [--no-alpha]  [--no-thumb-alpha]  [-o  FILENAME|--output
     FILENAME]	[-v|--verbose]	[-P|--params]  [-b  DEPTH] [-p NAME=VALUE] file-
     name[.jpg|.png|.y4m]

DESCRIPTION
     heif-enc Convert image to HEIC/HEIF.

OPTIONS
     -q QUALITY, --quality QUALITY
	    Defines quality level between 0 and 100  for  the  generated  output
	    file.

     -L, --lossless
	    Generate lossless output (-q has no effect)

     -t SIZE, --thumb SIZE
	    Generate thumbnail with maximum size SIZE pixels (default: off).

     --no-alpha
	    Do not save alpha channel.

     --no-thumb-alpha
	    Do not save alpha channel in thumbnail image.

     -o FILENAME, --output FILENAME
	    Output filename (optional).

     --verbose
	    Enable logging output (more will increase logging level).

     -P, --params
	    Show  all encoder parameters and exit. Input file is not required or
	    used.

     -b DEPTH
	    Bit-depth of generated HEIF file when using 16-bit	PNG  input  (de-
	    fault: 10 bit).

     -p NAME=VALUE
	    Set additional encoder parameters. See NOTES below.

EXIT STATUS
     0
	 Success

     1
	 Failure  (syntax  or  usage  error;  error while loading, converting or
	 writing image).

NOTES
     The available input formats depend on the libraries that were available  at
     compile  time. Supported are JPEG, PNG and Y4M, the file type is determined
     based on the extension of the input file.

     When specifying multiple source images, they will all  be	saved  into  the
     same HEIF file.

     When  using the x265 encoder, you may pass it any of its parameters by pre-
     fixing the parameter name with x265:.  Hence, to set the ctu parameter, you
     will have to set x265:ctu in libheif (e.g.: -p x265:ctu=64).

     Note that there is no checking for valid parameters when using the prefix.

BUGS
     Please reports bugs or issues at https://github.com/strukturag/libheif

AUTHORS
     Dirk Farin, struktur AG

COPYRIGHT
     Copyright (C) 2017 struktur AG

								     HEIF-ENC(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=heif-enc&sektion=1&manpath=FreeBSD+Ports+15.1.quarterly>

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