Fix travis check build errors

.travis.yml

@@ -2,5 +2,5 @@ language: cpp
 dist: xenial
 before_install:
   - sudo apt-get -qq update
-  - sudo apt-get install build-essential cmake qtbase5-dev libavcodec-dev libavformat-dev libopencv-dev
+  - sudo apt-get install build-essential cmake qtbase5-dev libavcodec-dev libavformat-dev libopencv-dev libopencv-video-dev
 script: mkdir -p build && cd build && cmake .. && make && cd ..

CMakeLists.txt

@@ -10,6 +10,7 @@ cmake_minimum_required( VERSION 3.2.0 )
 SET(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake )
 INCLUDE( cmake/ModulesFct.cmake )
 INCLUDE(FeatureSummary)
+INCLUDE(GNUInstallDirs)
 
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 # Project Definition