[solved]avif read support not present in imagemagick

[dE_logics]

Hi.

I've build imagemagick with heif support. This results in imagemagick correctly ENCODING avif image, but when it comes to reading --

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convert: no decode delegate for this image format `AVIF' @ error/constitute.c/ReadImage/746.

imagemagick was built with the following --
bzip2 corefonts cxx fftw fontconfig hdri heif jbig jpeg jpeg2k jpegxl lcms opencl openmp pango png postscript raw svg tiff truetype webp xml zlib -X -djvu -fpx -graphviz -hardened -lqr -lzma -openexr -perl -q8 -q32 -static-libs -test -wmf -zip

Version is 7.1.1.38-r2

Can you read avif? Please share the output of --

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convert -list format | grep AVIF

And please share the use flags and version of imagemagick.

[Hu]

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# emerge -pv imagemagick

These are the packages that would be merged, in order:

Calculating dependencies... done!
Dependency resolution took 1.78 s (backtrack: 0/20).

[ebuild   R    ] media-gfx/imagemagick-7.1.1.38-r2:0/7.1.1-18::gentoo  USE="X bzip2 corefonts cxx fontconfig graphviz hardened heif jpeg openmp pango png raw svg tiff truetype webp xml zlib -djvu -fftw -fpx -hdri -jbig -jpeg2k -jpegxl -lcms -lqr -lzma -opencl -openexr -perl -postscript -q8 -q32 -static-libs -test -wmf -zip" 0 KiB

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$ convert -list format | grep AVIF
WARNING: The convert command is deprecated in IMv7, use "magick" instead of "convert" or "magick convert"

     AVIF  HEIC      rw+   AV1 Image File Format (1.15.2)

I don't have an image of the right type to test whether I can actually render it. However, creating and then rendering one seems to work:

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$ magick rose: test.avif
$ file test.avif 
test.avif: ISO Media, AVIF Image
$ display test.avif 

That last command displays a window with what looks like the standard ImageMagick rose. display rose: shows a seemingly equivalent window.

Per diff -u, our differences are:

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--- dE_logics
+++ Hu
@@ -1,29 +1,29 @@
--X
+X
 bzip2
 corefonts
 cxx
 -djvu
-fftw
+-fftw
 fontconfig
 -fpx
--graphviz
--hardened
-hdri
+graphviz
+hardened
+-hdri
 heif
-jbig
+-jbig
 jpeg
-jpeg2k
-jpegxl
-lcms
+-jpeg2k
+-jpegxl
+-lcms
 -lqr
 -lzma
-opencl
+-opencl
 -openexr
 openmp
 pango
 -perl
 png
-postscript
+-postscript
 -q32
 -q8
 raw

[Anon-E-moose]

Probably the hdri use flag

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convert -list format|head -20
WARNING: The convert command is deprecated in IMv7, use "magick" instead of "convert" or "magick convert"

   Format  Module    Mode  Description
-------------------------------------------------------------------------------
      3FR  DNG       r--   Hasselblad CFV/H3D39II Raw Format
      3G2  VIDEO     r--   Media Container
      3GP  VIDEO     r--   Media Container
      AAI* AAI       rw+   AAI Dune image
       AI  PDF       rw-   Adobe Illustrator CS2
     APNG  VIDEO     rw+   Animated Portable Network Graphics
      ART* ART       rw-   PFS: 1st Publisher Clip Art
      ARW  DNG       r--   Sony Alpha Raw Format
   ASHLAR* ASHLAR    -w+   Image sequence laid out in continuous irregular courses
      AVI  VIDEO     r--   Microsoft Audio/Visual Interleaved
     AVIF  HEIC      rw+   AV1 Image File Format (1.15.2)

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[ebuild   R    ] media-gfx/imagemagick-7.1.1.38-r2:0/7.1.1-18::local  USE="bzip2 corefonts cxx hdri heif jpeg lcms openmp pango perl png svg tiff truetype webp xml zlib -X -djvu -fftw -fontconfig -fpx -graphviz -hardened -jbig -jpeg2k -jpegxl -lqr -lzma -opencl -openexr -postscript -q32 -q8 -raw -static-libs -test -wmf -zip" 0 KiB

[dE_logics]

Comparing your USE flags, there is no reason to believe that there is a USE deficiency.

[dE_logics]

Culprit was media-libs/libheif[aom]. It requires aom.

[Ionen]

Culprit was media-libs/libheif[aom]. It requires aom.

Are you using USE="-*"? That USE should be enabled by default unless you went out of your way to turn it off.

[dE_logics]

Culprit was media-libs/libheif[aom]. It requires aom.

Are you using USE="-*"? That USE should be enabled by default unless you went out of your way to turn it off.

Yes. libaom was supposed to be deprecated for media-libs/dav1d and svt-av1. But it seems like an active project.

[Ionen]

Yes. libaom was supposed to be deprecated for media-libs/dav1d and svt-av1. But it seems like an active project.

libaom may be slow but it's the reference implementation that everything else is basing itself on to produce accurate results, it's not going anywhere.

Albeit given you enabled svt-av1, disabling it makes sense then even if it didn't give expected results