First draft

This is just a scattering of notes and proofs of concepts.

.gitignore

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+*.log
+*.out

Dockerfile

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+FROM alpine
+RUN apk add xvfb xdotool xfce4 ffmpeg chromium
+RUN rm -rf /var/cache/apk/*

do.bash

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+#
+# This is AWESOME.
+#
+# Original code by: Chris F.A. Johnson
+#
+ESC="" ##  A literal escape character
+but_row=1
+
+clear
+mv=1000  ## mv=1000 for press and release reporting; mv=9 for press only
+
+_STTY=$(stty -g)      ## Save current terminal setup
+stty -echo -icanon    ## Turn off line buffering
+printf "${ESC}[?${mv}h        "   ## Turn on mouse reporting
+printf "${ESC}[?25l"  ## Turn off cursor
+
+while :
+do
+  x=$(dd bs=1 count=6 2>/dev/null) ## Read six characters
+
+  m1=${x#???}    ## Remove the first 3 characters
+  m2=${x#????}   ## Remove the first 4 characters
+  m3=${x#?????}  ## Remove the first 5 characters
+
+  ## Convert to characters to decimal values
+  eval "$(printf "mb=%d mx=%d my=%d" "'$m1" "'$m2" "'$m3")"
+
+  ## Values > 127 are signed
+  [ $mx -lt 0 ] && MOUSEX=$(( 223 + $mx )) || MOUSEX=$(( $mx - 32 ))
+  [ $my -lt 0 ] && MOUSEY=$(( 223 + $my )) || MOUSEY=$(( $my - 32 ))
+
+  ## Button pressed is in first 2 bits; use bitwise AND
+  BUTTON=$(( ($mb & 3) + 1 ))
+  echo $MOUSEX $MOUSEY $BUTTON > mouse.out
+
+done
+
+printf "${ESC}[?${mv}l"  ## Turn off mouse reporting
+stty "$_STTY"            ## Restore terminal settings
+printf "${ESC}[?12l${ESC}[?25h" ## Turn cursor back on
+printf "\n${ESC}[0J\n"   ## Clear from cursor to bottom of screen

forward_mouse.rb

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+require 'curses'
+include Curses
+
+# These 2 allow mouse input
+noecho # Prevent input being echoed to the screen
+stdscr.keypad(true) # Not sure what this does exactly, but mouse input doesn't work without it
+
+# Block whilst waiting for input
+stdscr.timeout = -1
+
+mousemask(ALL_MOUSE_EVENTS)
+
+loop do
+  case getch
+  when KEY_MOUSE
+    m = getmouse
+    File.open('/home/tombh/Workspace/lowbandwidth/mouse.out', 'w') do |file|
+      file.write("#{m.x}, #{m.y}, #{m.z}, #{m.bstate}")
+    end
+  end
+end

run.bash

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+#!/bin/bash
+ffmpeg -f x11grab -s 3200x1600 -r 12 -i :0.0 -vcodec mpeg2video -f mpegts udp://127.0.0.1:1234 >> ffmpeg.log 2>&1 &
+sleep 1
+# (/home/tombh/.rbenv/versions/2.3.0/bin/ruby ./forward_mouse.rb <&3 &) 3<&0
+(./do.bash <&3 &) 3<&0
+hiptext -width 95 -font /usr/share/fonts/TTF/DejaVuSansMono.ttf 'udp://127.0.0.1:1234' 2> hiptext.log
+trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT