Public bug reported:

Using an install of libavif as below, codecs are not found or not setup
properly. Is there options or other packages that should be installed to
have these codecs enabled?

For cross reference, I was working on getting libgd 2.3.x and 2.4
branches run with 21.04 and avif, see
https://github.com/libgd/libgd/issues/770

libavif-bin/hirsute,now 0.8.4-2 amd64 [installed]
  Library for handling .avif files (utilities)

libavif9/hirsute,now 0.8.4-2 amd64 [installed]
  Library for handling .avif files

libavif-dev/hirsute,now 0.8.4-2 amd64 [installed]
  Library for handling .avif files (development files)

libaom-dev/hirsute,now 1.0.0.errata1-3build1 amd64 [installed]
  AV1 Video Codec Library -- Development Files

libaom0/hirsute,now 1.0.0.errata1-3build1 amd64 [installed]
  AV1 Video Codec Library

libdav1d-dev/hirsute,now 0.7.1-3 amd64 [installed]
  fast and small AV1 video stream decoder (development files)

libdav1d4/hirsute,now 0.7.1-3 amd64 [installed,automatic]
  fast and small AV1 video stream decoder (shared library)

libgav1-0/hirsute,now 0.16.0-5 amd64 [installed,automatic]
  AV1 decoder developed by Google -- runtime library

libgav1-dev/hirsute,now 0.16.0-5 amd64 [installed]
  AV1 decoder developed by Google -- development kit

➜  builds git:(master) ✗ avifenc ../test/gdtest.png out.avif
Successfully loaded: ../test/gdtest.png
AVIF to be written: (Lossy)
 * Resolution     : 565x424
 * Bit Depth      : 8
 * Format         : YUV444
 * Alpha          : Present
 * Range          : Full
 * Color Primaries: 1
 * Transfer Char. : 13
 * Matrix Coeffs. : 6
 * ICC Profile    : Absent (0 bytes)
 * XMP Metadata   : Absent (0 bytes)
 * EXIF Metadata  : Absent (0 bytes)
 * Transformations: None
Encoding with AV1 codec '(null)' speed [8], color QP [0 (Lossless) <-> 10 
(High)], alpha QP [0 (Lossless) <-> 0 (Lossless)], tileRowsLog2 [0], 
tileColsLog2 [0], 1 worker thread(s), please wait...
ERROR: Failed to encode image: No codec available

** Affects: libavif (Ubuntu)
     Importance: Undecided
         Status: New

** Description changed:

  Using an install of libavif as below, codecs are not found or not setup
  properly. Is there options or other packages that should be installed to
  have these codecs enabled?
  
+ For cross reference, I was working on getting libgd 2.3.x and 2.4
+ branches run with 21.04 and avif, see
+ https://github.com/libgd/libgd/issues/770
  
  libavif-bin/hirsute,now 0.8.4-2 amd64 [installed]
-   Library for handling .avif files (utilities)
+   Library for handling .avif files (utilities)
  
  libavif9/hirsute,now 0.8.4-2 amd64 [installed]
-   Library for handling .avif files
+   Library for handling .avif files
  
  libavif-dev/hirsute,now 0.8.4-2 amd64 [installed]
-   Library for handling .avif files (development files)
+   Library for handling .avif files (development files)
  
  libaom-dev/hirsute,now 1.0.0.errata1-3build1 amd64 [installed]
-   AV1 Video Codec Library -- Development Files
+   AV1 Video Codec Library -- Development Files
  
  libaom0/hirsute,now 1.0.0.errata1-3build1 amd64 [installed]
-   AV1 Video Codec Library
+   AV1 Video Codec Library
  
  libdav1d-dev/hirsute,now 0.7.1-3 amd64 [installed]
-   fast and small AV1 video stream decoder (development files)
+   fast and small AV1 video stream decoder (development files)
  
  libdav1d4/hirsute,now 0.7.1-3 amd64 [installed,automatic]
-   fast and small AV1 video stream decoder (shared library)
+   fast and small AV1 video stream decoder (shared library)
  
  libgav1-0/hirsute,now 0.16.0-5 amd64 [installed,automatic]
-   AV1 decoder developed by Google -- runtime library
+   AV1 decoder developed by Google -- runtime library
  
  libgav1-dev/hirsute,now 0.16.0-5 amd64 [installed]
-   AV1 decoder developed by Google -- development kit
- 
+   AV1 decoder developed by Google -- development kit
  
  ➜  builds git:(master) ✗ avifenc ../test/gdtest.png out.avif
  Successfully loaded: ../test/gdtest.png
  AVIF to be written: (Lossy)
-  * Resolution     : 565x424
-  * Bit Depth      : 8
-  * Format         : YUV444
-  * Alpha          : Present
-  * Range          : Full
-  * Color Primaries: 1
-  * Transfer Char. : 13
-  * Matrix Coeffs. : 6
-  * ICC Profile    : Absent (0 bytes)
-  * XMP Metadata   : Absent (0 bytes)
-  * EXIF Metadata  : Absent (0 bytes)
-  * Transformations: None
+  * Resolution     : 565x424
+  * Bit Depth      : 8
+  * Format         : YUV444
+  * Alpha          : Present
+  * Range          : Full
+  * Color Primaries: 1
+  * Transfer Char. : 13
+  * Matrix Coeffs. : 6
+  * ICC Profile    : Absent (0 bytes)
+  * XMP Metadata   : Absent (0 bytes)
+  * EXIF Metadata  : Absent (0 bytes)
+  * Transformations: None
  Encoding with AV1 codec '(null)' speed [8], color QP [0 (Lossless) <-> 10 
(High)], alpha QP [0 (Lossless) <-> 0 (Lossless)], tileRowsLog2 [0], 
tileColsLog2 [0], 1 worker thread(s), please wait...
  ERROR: Failed to encode image: No codec available

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https://bugs.launchpad.net/bugs/1943658

Title:
  21.04, missing codecs

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