Thumbnails: Difference between revisions
Merged together the HEIF/AVIF section into the image section and also listed more image libraries which aren't inside of gdk-pixbuf |
Stackcoder (talk | contribs) m Use same MimeType |
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Thumbnails for the following MimeTypes are enabled: ''image/png; image/jpeg; image/bmp; image/x-bmp; image/x-MS-bmp; image/gif; image/x-icon; image/x-ico; image/x-win-bitmap; image/vnd.microsoft.icon; application/ico; image/ico; image/icon; text/ico; image/x-portable-anymap; image/x-portable-bitmap; image/x-portable-graymap; image/x-portable-pixmap; image/tiff; image/x-xpixmap; image/x-xbitmap; image/x-tga; image/x-icns; image/x-quicktime; image/qtif.'' | Thumbnails for the following MimeTypes are enabled: ''image/png; image/jpeg; image/bmp; image/x-bmp; image/x-MS-bmp; image/gif; image/x-icon; image/x-ico; image/x-win-bitmap; image/vnd.microsoft.icon; application/ico; image/ico; image/icon; text/ico; image/x-portable-anymap; image/x-portable-bitmap; image/x-portable-graymap; image/x-portable-pixmap; image/tiff; image/x-xpixmap; image/x-xbitmap; image/x-tga; image/x-icns; image/x-quicktime; image/qtif.'' | ||
<syntaxhighlight lang="nix"> | <syntaxhighlight lang="nix"># configuration.nix | ||
# configuration.nix | |||
{ pkgs, ... }: | { pkgs, ... }: | ||
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# 'gdk-pixbuf-thumbnailer.thumbnailer' is created in '/run/current-system/sw/share/thumbnailers' | # 'gdk-pixbuf-thumbnailer.thumbnailer' is created in '/run/current-system/sw/share/thumbnailers' | ||
}</syntaxhighlight>For newer image formats not included in <code>gdk-pixbuf</code> you can enable thumbnails by adding their specific image libraries into the system packages as seen below<syntaxhighlight lang="nix"># configuration.nix | }</syntaxhighlight> | ||
==== Thumbnails for newer image formats such as AVIF and JPEG XL ==== | |||
For newer image formats not included in <code>gdk-pixbuf</code> you can enable thumbnails by adding their specific image libraries into the system packages as seen below<syntaxhighlight lang="nix"># configuration.nix | |||
{ pkgs, ... }: | { pkgs, ... }: | ||
{ | { | ||
environment.systemPackages = [ | environment.systemPackages = [ | ||
# For general AVIF | # For general HEIF container support (this includes the AVIF file format) | ||
pkgs.libheif | pkgs.libheif.bin # provides heif-thumbnailer (the program that generates HEIF thumbnails) | ||
pkgs.libheif.out # provides heif.thumbnailer (allows for the viewing of HEIF thumbnails) | |||
# For more newer AVIF specific support | # For more newer AVIF specific support usually not needed if libheif is installed | ||
pkgs.libavif | pkgs.libavif | ||
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pkgs.webp-pixbuf-loader | pkgs.webp-pixbuf-loader | ||
]; | ]; | ||
# All of the thumbnailers are created in '/run/current-system/sw/share/thumbnailers' | |||
}</syntaxhighlight> | }</syntaxhighlight> | ||
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gdk-pixbuf can be used to generate thumbnails for RAW camera image formats by reading the embedded jpeg. This embedded jpeg is typically generated in the camera or overwritten by your RAW editing software, and may not match what the photo looks like when opened in a viewer or editor. | gdk-pixbuf can be used to generate thumbnails for RAW camera image formats by reading the embedded jpeg. This embedded jpeg is typically generated in the camera or overwritten by your RAW editing software, and may not match what the photo looks like when opened in a viewer or editor. | ||
<syntaxhighlight lang="nix"> | <syntaxhighlight lang="nix"># configuration.nix | ||
# configuration.nix | |||
{ pkgs, ... }: | { pkgs, ... }: | ||
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# Other MimeTypes that include embedded jpeg may work as well (e.g. Nikon .nef, Sony .arf, etc) | # Other MimeTypes that include embedded jpeg may work as well (e.g. Nikon .nef, Sony .arf, etc) | ||
# Test other formats by adding them above | # Test other formats by adding them above | ||
]; | |||
}</syntaxhighlight> | |||
'''exiv2-thumbnailer''' | |||
exiv2 can as well generate thumbnails for RAW camera formats by extracting their embedded JPEG or TIFF previews, making thumbnail creation fast without full RAW decoding. It may also support a wider range of RAW formats than gdk‑pixbuf, since it works directly with metadata rather than relying on codec‑level image loaders.<syntaxhighlight lang="nix"> | |||
# configuration.nix | |||
{ pkgs, ... }: | |||
{ | |||
environment.systemPackages = [ | |||
# exiv2-based RAW thumbnailer (extracts embedded JPEG/TIFF) | |||
(pkgs.writeShellApplication { | |||
name = "exiv2-thumbnailer"; | |||
runtimeInputs = [ pkgs.exiv2 pkgs.imagemagick ]; | |||
text = '' | |||
#!${pkgs.bash}/bin/bash | |||
set -euo pipefail | |||
tmpdir="$(mktemp -d)" | |||
trap 'rm -rf "$tmpdir"' EXIT | |||
exiv2 -l "$tmpdir" --extract p1 "$1" | |||
base="$(basename "$1")" | |||
preview="$tmpdir/\${base%.*}-preview1.jpg" | |||
[ ! -f "$preview" ] && preview="${preview%.*}.tif" | |||
magick "$preview" -thumbnail "\${3}x\${3}>" -strip "png:$2" | |||
''; | |||
}) | |||
(pkgs.writeTextFile { | |||
name = "exiv2-thumbnailer.thumbnailer"; | |||
destination = "/share/thumbnailers/exiv2-thumbnailer.thumbnailer"; | |||
text = '' | |||
[Thumbnailer Entry] | |||
TryExec=exiv2-thumbnailer | |||
Exec=exiv2-thumbnailer %i %o | |||
MimeType=image/x-canon-crw;image/x-canon-cr2;image/x-canon-cr3;image/x-adobe-dng;image/x-dng; | |||
''; | |||
}) | |||
]; | ]; | ||
} | } | ||
</syntaxhighlight> | |||
</syntaxhighlight>For a more complete solution, see the NixOS port of [https://github.com/stackcoder/nixos-nautilus-raw-thumbnails nautilus‑raw‑thumbnails]. | |||
==== nufraw-thumbnailer ==== | ==== nufraw-thumbnailer ==== | ||