gnu: Add libvideogfx.

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

Signed-off-by: Danny Milosavljevic <dannym@scratchpost.org>

gnu/packages/video.scm

@@ -172,6 +172,50 @@
   #:use-module (gnu packages xml)
   #:use-module (gnu packages xorg))
 
+(define-public libvideogfx
+  (package
+    (name "libvideogfx")
+    (version "1.0.9")
+    (source
+     (origin
+       (method git-fetch)
+       (uri
+        (git-reference
+         (url "https://github.com/farindk/libvideogfx.git")
+         (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "154b0j8cfg879pg08xcbwvbz8z9nrfnyj31i48vxir1psas70ynq"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'unpack 'fix-build-errors
+           (lambda _
+             (substitute* "libvideogfx/graphics/fileio/ffmpeg.cc"
+               (("av_close_input_file\\(")
+                "avformat_close_input(&"))
+             (substitute* "libvideogfx/graphics/fileio/png.cc"
+               (("is != NULL") "is.good()"))
+             #t)))))
+    (native-inputs
+     `(("autoconf" ,autoconf)
+       ("automake" ,automake)
+       ("libtool" ,libtool)
+       ("pkg-config" ,pkg-config)))
+    (inputs
+     `(("ffmpeg" ,ffmpeg-2.8)
+       ("jpeg" ,libjpeg-turbo)
+       ("png" ,libpng)
+       ("x11" ,libx11)
+       ("xext" ,libxext)))
+    (synopsis "Video processing library")
+    (description "LibVideoGfx is a C++ library for low-level video processing.
+It aims at speeding up the development process for image and video processing
+applications by providing high-level classes for commonly required tasks.")
+    (home-page "https://dirk-farin.net/software/libvideogfx/index.html")
+    (license license:lgpl2.1+)))
+
 (define-public tslib
   (package
     (name "tslib")