Add some easy way to install

I know that this should be done using some sort of build system (like meson), but the player is still far from finished and a basic install script should be sufficient for the time being, if anyone wishes to test it.

README.md

@@ -1,17 +1,35 @@
 # Clapper
-A GNOME media player built using [GJS](https://gitlab.gnome.org/GNOME/gjs) and powered by [GStreamer](https://gstreamer.freedesktop.org) with [OpenGL](https://www.opengl.org) rendering. Can also be used as a pre-made widget for [Gtk](https://www.gtk.org) apps.
+A GNOME media player built using [GJS](https://gitlab.gnome.org/GNOME/gjs) and powered by [GStreamer](https://gstreamer.freedesktop.org) with [OpenGL](https://www.opengl.org) rendering. Can also be used as a pre-made widget for [GTK](https://www.gtk.org) apps.
 
 <b>WORK IN PROGRESS</b>
 
 ## Requirements
-Clapper uses these `GStreamer` elements:
+Clapper uses `GStreamer` bindings from `GI` repository, so if your repo ships them as separate package, they must be installed first.
+Additionally Clapper requires these `GStreamer` elements:
 * [gtkglsink](https://gstreamer.freedesktop.org/documentation/gtk/gtkglsink.html)
 * [glsinkbin](https://gstreamer.freedesktop.org/documentation/opengl/glsinkbin.html)
 
 Other required plugins (codecs) depend on video format.
 
-To use `VAAPI` make sure you have `gstreamer1-vaapi` installed. Verify with:
+## Installation
+Run in terminal:
+```sh
+sudo ./install.sh
+```
+I know that this should be done using some sort of build system (like `meson`), but the player is still far from finished and a basic install script should be sufficient for the time being, if anyone wishes to test it.
+
+## Hardware acceleration
+Using hardware acceleration is highly recommended. As stated in `GStreamer` wiki:
+```
+In the case of OpenGL based elements, the buffers have the GstVideoGLTextureUploadMeta meta, which
+efficiently copies the content of the VA-API surface into a GL texture.
+```
+Clapper uses `OpenGL` based sinks, so when `VA-API` is available, both CPU and RAM usage is much lower.
+
+To use `VA-API` make sure you have `gstreamer1-vaapi` installed. Verify with:
 ```shell
 gst-inspect-1.0 vaapi
 ```
 On some older GPUs you might need to export `GST_VAAPI_ALL_DRIVERS=1` environment variable.
+
+Other acceleration methods (supported by `GStreamer`) should also work, but I have not tested them due to lack of hardware.

bin/clapper

@@ -0,0 +1,12 @@
+#!/usr/bin/gjs
+
+const Package = imports.package;
+
+Package.init({
+  name: "clapper",
+  version: "0.0.0",
+  prefix: "/usr/local",
+  libdir: "/usr/local/lib",
+  datadir: "/usr/local/share",
+});
+Package.run(imports.main);

gjs-1.0/clapper.js

@@ -0,0 +1,11 @@
+imports.gi.versions.Gdk = '3.0';
+imports.gi.versions.Gtk = '3.0';
+imports.searchPath.unshift('/usr/local/share/clapper');
+
+const ClapperSrc = imports.clapper_src;
+
+var { App } = ClapperSrc.app;
+var { Interface } = ClapperSrc.interface;
+var { Player } = ClapperSrc.player;
+
+imports.searchPath.shift();

install.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+
+LICENSES_DIR="/usr/local/share/licenses/clapper"
+DOC_DIR="/usr/local/share/doc/clapper"
+MAIN_DIR="/usr/local/share/clapper"
+BIN_DIR="/usr/local/bin"
+GJS_DIR="/usr/local/share/gjs-1.0"
+
+SCRIPT_ERR="Error: this script must be"
+
+if [ ! -d "./clapper_src" ]; then
+    echo "$SCRIPT_ERR run from clapper directory!" 1>&2
+    exit 1
+elif [ "$EUID" -ne 0 ]; then
+    echo "$SCRIPT_ERR run as root!" 1>&2
+    exit 1
+fi
+
+echo "Creating directories..."
+mkdir -p "$LICENSES_DIR"
+mkdir -p "$DOC_DIR"
+mkdir -p "$MAIN_DIR"
+mkdir -p "$GJS_DIR"
+mkdir -p "$BIN_DIR"
+
+echo "Copying files..."
+cp -f "./COPYING" "$LICENSES_DIR/"
+cp -f "./README.md" "$DOC_DIR/"
+cp -rf "./clapper_src" "$MAIN_DIR/"
+cp -f "./main.js" "$MAIN_DIR/"
+cp -f "./gjs-1.0/clapper.js" "$GJS_DIR/"
+cp -f "./bin/clapper" "$BIN_DIR/"
+
+echo "Creating executables..."
+chmod +x "$BIN_DIR/clapper"
+
+echo "Install finished"