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Diffstat (limited to 'README.txt')
| -rw-r--r-- | README.txt | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -378,10 +378,10 @@ building under Microsoft Windows: https://github.com/strukturag/libde265 - to read HEIF/h.265 files. Libheif makes use of libde265 for - h.265/HEVC decoding and libx265 for encoding. GraphicsMagick does - not itself provide any h.265/HEVC algoriths and it does not - currently support encoding. + to read HEIF/h.265 files and HEIF/AVIF files. Libheif makes use of + libde265 for h.265/HEVC decoding and libx265 for encoding. + GraphicsMagick does not itself provide any h.265/HEVC algoriths and + it does not currently support encoding. The HEVC codec is covered by a huge number of patents (the MPEG LA HEVC patent list is 164 pages long!). While GraphicsMagick is @@ -395,5 +395,6 @@ building under Microsoft Windows: entity has paid to allow use of any applicable HEVC patents on their device, or that the patents do not apply in their country. -* GraphicsMagick requires the JPEG XL library from - https://github.com/libjxl/libjxl to read and write JPEG XL files. +* GraphicsMagick requires the JPEG XL (JXL) library (release 0.7.0 or + later) from https://github.com/libjxl/libjxl to read and write JPEG + XL files. |