tce-load -i compiletc cmake ninja libaom-dev libde265-dev x265-dev brotli-dev dav1d-dev gdk-pixbuf-dev libwebp-dev sdl2-dev openjpeg-dev

wget https://github.com/strukturag/libheif/releases/download/v1.20.2/libheif-1.20.2.tar.gz

cd libheif-1.20.2

mkdir build
cd build

cmake -LAH -DCMAKE_C_FLAGS_RELEASE="-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_CXX_FLAGS_RELEASE="-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe" -DCMAKE_INSTALL_PREFIX=/usr/local -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -G Ninja ../

[-fno-rtti fails]

ninja [2m 11.05s]
sudo ninja install

=== Summary of compiled codecs ===
libde265 HEVC decoder           : + built-in
FFMPEG HEVC decoder (HW acc)    : - disabled
x265 HEVC encoder               : + built-in
Kvazaar HEVC encoder            : - disabled
AOM AV1 decoder                 : + built-in
AOM AV1 encoder                 : + built-in
Dav1d AV1 decoder               : - disabled
SVT AV1 encoder                 : - disabled
Rav1e AV1 encoder               : - disabled
JPEG decoder                    : - disabled
JPEG encoder                    : - disabled
OpenH264 decoder                : - not found
OpenJPEG J2K decoder            : - disabled
OpenJPEG J2K encoder            : - disabled
OpenJPH HT-J2K encoder          : - disabled
uvg266 VVC enc. (experimental)  : - disabled
vvenc VVC enc. (experimental)   : - disabled
vvdec VVC dec. (experimental)   : - disabled

=== Supported formats ===
format        decoding   encoding
AVC             NO         NO 
AVIF            YES        YES
HEIC            YES        YES
JPEG            NO         NO 
JPEG2000        NO         NO 
JPEG2000-HT     NO         NO 
Uncompressed    NO         NO 
VVC             NO         NO 

=== Active input formats for heif-enc ===
JPEG: active
PNG:  active
TIFF: active