refactoring the build system

tools/README.md

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+# Tools
+
+Build system and utilities.
+

tools/encode.sh

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+#!/bin/bash
+
+set -e  ;  set -u
+
+if [ $# == 1 ]
+then
+	srcdir=$1
+else
+	srcdir="essai"
+fi
+
+source tools/fonctions.sh
+
+ff_encodage $srcdir wip.mp4

tools/fonctions.sh

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+
+set -eu
+
+#   --------------------------------------------------------------
+ralentisseur ()
+{
+temps=$1
+
+load=$(awk '{print int($1)}' < /proc/loadavg)
+# echo "   load is $load" | tee -a WS/log
+if [ $load -gt 10 ] ; then
+	attente=$(( $temps + ($RANDOM % 90) ))
+	echo "ralentir $0 $SEQNAME $attente"  # | tee -a WS/log
+	sleep $attente
+fi
+}
+
+#   --------------------------------------------------------------
+
+ff_encodage()
+{
+SRCDIR="$1"
+FILMNAME="$2"
+
+echo "Encoding $SRCDIR to $FILMNAME" | tee -a WS/log
+ffmpeg  -nostdin                                        	\
+        -y -r 30 -f image2 -i frames/${SRCDIR}/%05d.png		\
+        -metadata artist='--[ tTh ]--'                  	\
+        -metadata title='-- HexaCone --'    			\
+        -c:v libx264                                    	\
+        -pix_fmt yuv420p                                	\
+        -tune film                                      	\
+        $FILMNAME
+
+# wc -c $FILMNAME | tee -a WS/log
+}
+#   --------------------------------------------------------------
+
+mp_encodage()
+{
+#
+#	NOT WORKING !
+#
+mencoder	'mf://frames/*.png'		\
+		-mf				\
+		fps=24				\
+		-ovc lavc			\
+		-lavcopts vcodec=mpeg4		\
+		-o output.avi
+}
+
+#   --------------------------------------------------------------
+#   --------------------------------------------------------------

tools/linkfarmer.sh

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+#!/bin/bash
+
+set -e   ;   set -u
+
+IDX=0
+SPOOL="frames/Spool"
+SEQNAME="none"
+TMP="WS/tmp.png"
+
+source tools/fonctions.sh
+
+# -------------------------------------------------------
+#		/!\	this function just copy the
+#			file to the spool dir, so 
+#			you can use it for tmp pics.
+#
+addfile ()
+{
+src="$1"
+dstname=$(printf "%s/%05d.png" $SPOOL $IDX)
+# echo "$src -> $dstname"
+# ln --force --symbolic $src $dstname
+cp -f $src $dstname
+IDX=$(( IDX + 1 ))
+}
+# -------------------------------------------------------
+linkfarm ()
+{
+SRC="frames/$1"
+echo "linkfarm $SRC" | tee -a WS/log
+
+local NBRE=30
+for foo in $(seq 0 $NBRE)
+do
+	addfile "$SRC/00000.png"
+done
+
+for src in "$SRC"/*
+do
+	addfile $src
+done
+
+for foo in $(seq 0 $NBRE)
+do
+	addfile "$SRC/00359.png"
+done
+sync
+}
+# -------------------------------------------------------
+faire_le_titre ()
+{
+echo "faire le titre"
+
+local NBRE=190
+for foo in $(seq 0 $NBRE)
+do
+	Ypos=$(( 500 - ( foo / 2 ) ))
+	convert	 "WS/negatif.png"			\
+		-gravity north				\
+		-font Courier-Bold			\
+		-pointsize 96				\
+		-fill white				\
+		-annotate +0+${Ypos} "HexaCone(s)"	\
+		${TMP}
+	# identify ${TMP}
+	addfile ${TMP}
+done
+}
+# -------------------------------------------------------
+faire_la_fin ()
+{
+local NBRE=120
+for foo in $(seq 0 $NBRE)
+do
+	Ypos=$(( foo + 100 ))
+	convert	 "WS/negatif.png"				\
+		-gravity north					\
+		-font Courier-Bold				\
+		-pointsize 48					\
+		-fill white					\
+		-strokewidth 2  -stroke gray30			\
+		-annotate +0+${Ypos} 	\
+				"tTh des Bourtoulots\n2025"	\
+		${TMP}
+	# identify ${TMP}
+	addfile ${TMP}
+done
+}
+# -------------------------------------------------------
+
+rm frames/Spool/*.png
+
+tools/plot-timing.sh 
+faire_le_titre
+
+linkfarm hexabenz
+linkfarm orbite
+linkfarm topview
+linkfarm passage
+linkfarm scene
+linkfarm essai
+
+tools/plot-timing.sh 
+faire_la_fin
+
+ff_encodage Spool full.mp4
+
+
+
+
+

tools/plot-timing.sh

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+#!/bin/bash
+
+set -ue
+
+TMPFILE="/dev/shm/plot-timing.tmp"
+IMAGE="timing.png"
+
+echo ; figlet "plot timing" ; echo
+wc WS/mp4.timing | tee -a WS/log
+
+grep "passage" WS/mp4.timing | awk '				\
+BEGIN	{							\
+	nbrames=360;						\
+	for (foo=0; foo<nbrames; foo++) {			\
+		mini[foo]  = 666;				\
+		maxi[foo]  = -42;				\
+		count[foo] = 0;					\
+		}						\
+	}							\
+								\
+	{							\
+	accu[$2] += $3;						\
+	count[$2]++;						\
+	if (mini[$2] > $3)	mini[$2] = $3;			\
+	if (maxi[$2] < $3)	maxi[$2] = $3;			\
+	}							\
+								\
+END	{							\
+	for (foo=0; foo<nbrames; foo++) {			\
+		if (count[foo] > 0) {				\
+			mean = accu[foo] / count[foo];		\
+			printf "%4d %4f %4d %4d\n", foo, mean, 	\
+				mini[foo], maxi[foo];		\
+			}					\
+		}						\
+	}							\
+' > $TMPFILE
+
+# cat -n $TMPFILE | tail		# ; exit
+
+gnuplot	<< __EOC__
+	set term png size 1024,768
+	set output "timing.png"
+	set grid
+	set xrange [:360]
+	set yrange [0:]
+	set title "HexaCone : temps de rendu"
+	set xlabel "numéro de la trame"
+	set ylabel "temps en secondes"
+	plot "/dev/shm/plot-timing.tmp" u 1:4 w l t "maximum",	\
+	     "/dev/shm/plot-timing.tmp" u 1:3 w l t "minimum",	\
+	     "/dev/shm/plot-timing.tmp" u 1:2 w l t "moyenne",
+__EOC__
+
+convert -negate $IMAGE WS/negatif.png
+