gnu: Add libopenshot.

* gnu/packages/video.scm (libopenshot): New variable.
* gnu/packages/patches/libopenshot-tests-with-system-libs.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

gnu/local.mk

@@ -890,6 +890,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/libffi-3.2.1-complex-alpha.patch		\
   %D%/packages/patches/libjxr-fix-function-signature.patch	\
   %D%/packages/patches/libjxr-fix-typos.patch			\
+  %D%/packages/patches/libopenshot-tests-with-system-libs.patch	\
   %D%/packages/patches/libotr-test-auth-fix.patch		\
   %D%/packages/patches/libmad-armv7-thumb-pt1.patch		\
   %D%/packages/patches/libmad-armv7-thumb-pt2.patch		\

gnu/packages/patches/libopenshot-tests-with-system-libs.patch

@@ -0,0 +1,95 @@
+Combination of two patches that fix libopenshot tests when built with
+system-provided ffmpeg and jsoncpp.  See
+
+  https://github.com/OpenShot/libopenshot/pull/163
+
+From 0d7691ab53433e1583f6a66ea96683b0f7af8a57 Mon Sep 17 00:00:00 2001
+From: "FeRD (Frank Dana)" <ferdnyc@gmail.com>
+Date: Mon, 17 Sep 2018 14:04:40 -0400
+Subject: [PATCH] tests/CMakeFiles: Use FFMpeg like src/
+
+---
+ tests/CMakeLists.txt | 32 +++++++++++++++++++++++++++++++-
+ 1 file changed, 31 insertions(+), 1 deletion(-)
+
+diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
+index 2c45550..4df8464 100644
+--- a/tests/CMakeLists.txt
++++ b/tests/CMakeLists.txt
+@@ -79,7 +79,37 @@ ENDIF (ImageMagick_FOUND)
+ FIND_PACKAGE(FFmpeg REQUIRED)
+ 
+ # Include FFmpeg headers (needed for compile)
+-include_directories(${FFMPEG_INCLUDE_DIR})
++message('AVCODEC_FOUND: ${AVCODEC_FOUND}')
++message('AVCODEC_INCLUDE_DIRS: ${AVCODEC_INCLUDE_DIRS}')
++message('AVCODEC_LIBRARIES: ${AVCODEC_LIBRARIES}')
++
++IF (AVCODEC_FOUND)
++	include_directories(${AVCODEC_INCLUDE_DIRS})
++ENDIF (AVCODEC_FOUND)
++IF (AVDEVICE_FOUND)
++	include_directories(${AVDEVICE_INCLUDE_DIRS})
++ENDIF (AVDEVICE_FOUND)
++IF (AVFORMAT_FOUND)
++	include_directories(${AVFORMAT_INCLUDE_DIRS})
++ENDIF (AVFORMAT_FOUND)
++IF (AVFILTER_FOUND)
++	include_directories(${AVFILTER_INCLUDE_DIRS})
++ENDIF (AVFILTER_FOUND)
++IF (AVUTIL_FOUND)
++	include_directories(${AVUTIL_INCLUDE_DIRS})
++ENDIF (AVUTIL_FOUND)
++IF (POSTPROC_FOUND)
++	include_directories(${POSTPROC_INCLUDE_DIRS})
++ENDIF (POSTPROC_FOUND)
++IF (SWSCALE_FOUND)
++	include_directories(${SWSCALE_INCLUDE_DIRS})
++ENDIF (SWSCALE_FOUND)
++IF (SWRESAMPLE_FOUND)
++	include_directories(${SWRESAMPLE_INCLUDE_DIRS})
++ENDIF (SWRESAMPLE_FOUND)
++IF (AVRESAMPLE_FOUND)
++	include_directories(${AVRESAMPLE_INCLUDE_DIRS})
++ENDIF (AVRESAMPLE_FOUND)
+ 
+ ################# LIBOPENSHOT-AUDIO ###################
+ # Find JUCE-based openshot Audio libraries
+
+
+From e9e85cdfd036587adb86341f7f81619dc69f102c Mon Sep 17 00:00:00 2001
+From: "FeRD (Frank Dana)" <ferdnyc@gmail.com>
+Date: Mon, 17 Sep 2018 19:23:25 -0400
+Subject: [PATCH] Use system jsoncpp in tests, too
+
+The tests/ build needs to use the same jsoncpp as the src/ build,
+or tests in Clip_Tests.cpp can fail.
+---
+ tests/CMakeLists.txt | 10 ++++++++--
+ 1 file changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
+index 4df8464..a1a0356 100644
+--- a/tests/CMakeLists.txt
++++ b/tests/CMakeLists.txt
+@@ -180,12 +180,18 @@ endif(OPENMP_FOUND)
+ # Find ZeroMQ library (used for socket communication & logging)
+ FIND_PACKAGE(ZMQ REQUIRED)
+ 
+-# Include FFmpeg headers (needed for compile)
++# Include ZeroMQ headers (needed for compile)
+ include_directories(${ZMQ_INCLUDE_DIRS})
+ 
+ ################### JSONCPP #####################
+ # Include jsoncpp headers (needed for JSON parsing)
+-include_directories("../thirdparty/jsoncpp/include")
++if (USE_SYSTEM_JSONCPP)
++	find_package(JsonCpp REQUIRED)
++	include_directories(${JSONCPP_INCLUDE_DIRS})
++else()
++	message("Using embedded JsonCpp")
++	include_directories("../thirdparty/jsoncpp/include")
++endif(USE_SYSTEM_JSONCPP)
+ 
+ IF (NOT DISABLE_TESTS)
+ 	###############  SET TEST SOURCE FILES  #################

gnu/packages/video.scm

@@ -12,7 +12,7 @@
 ;;; Copyright © 2016 Dmitry Nikolaev <cameltheman@gmail.com>
 ;;; Copyright © 2016 Andy Patterson <ajpatter@uwaterloo.ca>
 ;;; Copyright © 2016, 2017 Nils Gillmann <ng0@n0.is>
-;;; Copyright © 2016 Eric Bavier <bavier@member.fsf.org>
+;;; Copyright © 2016, 2018 Eric Bavier <bavier@member.fsf.org>
 ;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;; Copyright © 2017 Feng Shu <tumashu@163.com>
 ;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
@@ -112,6 +112,7 @@
   #:use-module (gnu packages man)
   #:use-module (gnu packages mp3)
   #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages networking)
   #:use-module (gnu packages ocr)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
@@ -128,6 +129,7 @@
   #:use-module (gnu packages serialization)
   #:use-module (gnu packages shells)
   #:use-module (gnu packages ssh)
+  #:use-module (gnu packages swig)
   #:use-module (gnu packages texinfo)
   #:use-module (gnu packages textutils)
   #:use-module (gnu packages tls)
@@ -3077,3 +3079,64 @@ as surfing, skiing, riding and walking while shooting videos are especially
 prone to erratic camera shakes.  Vidstab targets these video contents to help
 create smoother and stable videos.")
     (license license:gpl2+)))
+
+(define-public libopenshot
+  (package
+    (name "libopenshot")
+    (version "0.2.2")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/OpenShot/libopenshot")
+                    (commit (string-append "v" version))))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1x4kv05pdq1pglb6y056aa7llc6iyibyhzg93k7zwj0q08cp5ixd"))
+              (modules '((guix build utils)))
+              (snippet '(begin
+                          ;; Allow overriding of the python installation dir
+                          (substitute* "src/bindings/python/CMakeLists.txt"
+                            (("(SET\\(PYTHON_MODULE_PATH.*)\\)" _ set)
+                             (string-append set " CACHE PATH "
+                                            "\"Python bindings directory\")")))
+                          #t))
+              (patches (search-patches "libopenshot-tests-with-system-libs.patch"))))
+    (build-system cmake-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("python" ,python)
+       ("swig" ,swig)
+       ("unittest++" ,unittest-cpp)))
+    (propagated-inputs                  ;all referenced in installed headers
+     `(("cppzmq" ,cppzmq)
+       ("ffmpeg" ,ffmpeg)
+       ("imagemagick" ,imagemagick)
+       ("jsoncpp" ,jsoncpp)
+       ("libopenshot-audio" ,libopenshot-audio)
+       ("qt" ,qt)       ;widgets, core, gui, multimedia, and multimediawidgets
+       ("zeromq" ,zeromq)))
+    (arguments
+     `(#:configure-flags
+       (list (string-append "-DPYTHON_MODULE_PATH:PATH=" %output "/lib/python"
+                            ,(version-major+minor (package-version python))
+                            "/site-packages")
+             "-DUSE_SYSTEM_JSONCPP:BOOL=ON")
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'set-vars
+           (lambda* (#:key inputs #:allow-other-keys)
+             (setenv "LIBOPENSHOT_AUDIO_DIR"
+                     (assoc-ref inputs "libopenshot-audio"))
+             (setenv "ZMQDIR"
+                     (assoc-ref inputs "zeromq"))
+             (setenv "UNITTEST_DIR"
+                     (string-append (assoc-ref inputs "unittest++")
+                                    "/include/UnitTest++"))
+             #t)))))
+    (home-page "https://openshot.org")
+    (synopsis "Video-editing, animation, and playback library")
+    (description "OpenShot Library (libopenshot) is a powerful C++ video
+editing library with a multi-threaded and feature rich video editing
+API.  It includes bindings for Python, Ruby, and other languages.")
+    (license license:lgpl3+)))