gnu: Add libde265.

* gnu/packages/video.scm (libde265): New variable.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>

gnu/packages/video.scm

@@ -319,6 +319,30 @@ television and DVD.  It is also known as AC-3.")
 shared library and encoder and decoder command-line executables.")
     (license license:bsd-2)))
 
+(define-public libde265
+  (package
+    (name "libde265")
+    (version "1.0.5")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/strukturag/libde265")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1qisj8ryzbknam3hk81rq70fsd9mcpxm898bqygvbsmbwyvmz3pg"))))
+    (build-system cmake-build-system)
+    (arguments
+     `(#:tests? #f)) ;there are no tests
+    (home-page "https://www.libde265.org/")
+    (synopsis "Open h.265 video codec implementation")
+    (description
+     "libde265 is an implementation of the h.265 video codec.  It is written
+from scratch and has a plain C API to enable a simple integration into other
+software.")
+    (license license:lgpl3+)))
+
 (define-public libmpeg2
   (package
     (name "libmpeg2")