Compile and installation method updates

created setup, build and install scripts to make it easier and
convenient to compile and install the application from source. no plans
distribute pre-compiled binaries because it's just so much easier to
guarantee the application will actually work in the target machine when
compiled by the target machine.

.gitignore

@@ -55,5 +55,9 @@ compile_commands.json
 # VSCode
 /.vscode
 
-# Build folder
+# Build folders
-/build
+/.build-mow
+/.build-opencv
+
+# Opencv src folder
+/src/opencv

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 2.8.12)
 project( MotionWatch )
 find_package( OpenCV REQUIRED )
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -pthread")

README.md

@@ -90,17 +90,22 @@ vid_container = mp4
 # installation.
 ```
 
-### Build Setup ###
+### Setup/Build/Install ###
 
 This application is currently only compatible with a Linux based operating
 systems that are capable of building and installing the opencv API from source.
 
-[opencv](https://docs.opencv.org/4.x/df/d65/tutorial_table_of_content_introduction.html).
+The following 3 scripts make this convenient by downloading, compiling and then
+installing the opencv API for you directly from opencv's git repository. This
+also makes sure FFMPEG and all of it's dependencies are installed because this
+application needs it to work properly.
+
+note 1: be sure to run setup.sh and install.sh as root (or use sudo).
+note 2: if building from scratch the following scripts will need to
+        be run in this order - setup.sh -> build.sh -> install.sh.
+
 ```
-cd /path/to/Motion/Watch/source
+sh ./setup.sh <--- only need to run this once if compiling for the first
-mkdir ./build
+sh ./build.sh      time or if upgrading from the ground up.
-cd ./build
+sh ./install.sh
-cmake ..
-make
-sudo cp ./mow /usr/bin/mow
 ```

build.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+mkdir -p ./.build-mow
+cd ./.build-mow
+cmake ..
+make -j4
+

install.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+cp ./.build-mow/mow /usr/bin/mow

setup.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+apt update
+apt install -y cmake g++ wget unzip git ffmpeg libavcodec-dev libavformat-dev libavutil-dev libswscale-dev
+cd ./src
+git clone https://github.com/opencv/opencv.git
+cd ..
+mkdir -p ./.build-opencv
+cd ./.build-opencv
+cmake ../src/opencv
+make -j4
+make install
+