#!/bin/bash

set -ue

TMPFILE="/dev/shm/plot-timing.tmp"
IMAGE="timing.png"

tail -3600 WS/mp4.timing | awk '				\
BEGIN	{							\
	nbrames=360;
	for (foo=0; foo<nbrames; foo++) {			\
		mini[foo] = 666;				\
		maxi[foo] = -42;				\
		}						\
	}							\
	{							\
	accu[$1] += $2;						\
	count[$1]++;						\
	if (mini[$1] > $2)	mini[$1] = $2;			\
	if (maxi[$1] < $2)	maxi[$1] = $2;			\
	last[$1] = $2;						\
	}							\
END	{							\
	for (foo=0; foo<nbrames; foo++) {				\
		if (count[foo] > 0) {					\
			mean = accu[foo] / count[foo];			\
			printf "%4d %4f %4d %4d %4d\n", foo, mean, 	\
				mini[foo], maxi[foo], last[foo];	\
			}						\
		}
	}							\
' > $TMPFILE

gnuplot	<< __EOC__
	set term png size 800,480
	set output "timing.png"
	set grid
	set xrange [:360]
	set yrange [:300]
	set title "HexaCone : temps de tracé vs. numéro de séquence"
	set xlabel "numéro de la trame"
	set ylabel "temps en secondes"
	plot "/dev/shm/plot-timing.tmp" u 1:2 w l t "moyenne",	\
	     "/dev/shm/plot-timing.tmp" u 1:3 w l t "minimum",	\
	     "/dev/shm/plot-timing.tmp" u 1:4 w l t "maximum",	\
	     "/dev/shm/plot-timing.tmp" u 1:5 w l t "dernier"
__EOC__