Initial version

generate.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+
+SOURCEDIR=`pwd`
+SOURCEFILE="nluug-title-template.svg"
+PROJDIR=`pwd`/proj1/
+
+# MAXLENGTH="SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER"
+SPEAKERNAME="Gunes Acar"
+#  MAX="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+TITLE1="Keynote: From Cookies to"
+TITLE2="Keyloggers: Understanding Modern"
+TITLE3="Online Tracking Techniques"
+
+CONV="convert -background black -fill black -alpha off"
+FRAMENUM=0
+
+# Make project directory
+mkdir ${PROJDIR}; cd ${PROJDIR}
+
+# Create initial image without title/speaker info
+cat ${SOURCEDIR}/${SOURCEFILE} | sed -e 's/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER//' -e 's/TITLE[123]//' > ${PROJDIR}/frameclear.svg
+
+# Fade this image in from 100% transparant to 'normal'
+echo "Generate fade-in-from-black sequence"
+for i in `seq 100 -3 0`
+do
+    echo "Generate frame ${FRAMENUM}"
+    ${CONV} -colorize ${i}% frameclear.svg frame-${FRAMENUM}.webp
+    ((FRAMENUM++))
+done
+
+echo "Add speakername sequence"
+SLEN=${#SPEAKERNAME} # Length of name
+# Copy a new frame, and fill in the speaker name 1 character at a time
+for i in `seq 0 ${SLEN}`
+do
+    echo "Generate frame ${FRAMENUM}"
+    SN="${SPEAKERNAME::$i}"
+    cat ${SOURCEDIR}/${SOURCEFILE} | sed -e "s/TITLE[123]//" -e "s/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/$SN/" > ${PROJDIR}/frame-${FRAMENUM}.svg
+    ${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
+    ((FRAMENUM++))
+done
+
+echo "Add title sequence"
+# Find longest title
+TL1=${#TITLE1}
+TL2=${#TITLE2}
+TL3=${#TITLE3}
+if [ $TL1 > $TL2 ]; then
+    TLEN=$TL1
+else
+    TLEN=$TL2
+fi
+if [ $TL3 > $TLEN ]; then
+    TLEN=$TL3
+fi
+
+# With speakername, not add the title, 1 char (per line) at a time
+for i in `seq 0 40`
+do
+    echo "Generate frame ${FRAMENUM}"
+    T1="${TITLE1::$i}"  # Substring, first i characters
+    T2="${TITLE2::$i}"
+    T3="${TITLE3::$i}"
+    cat ${SOURCEDIR}/${SOURCEFILE} | sed -e "s/TITLE1/$T1/" -e "s/TITLE2/$T2/" -e "s/TITLE3/$T3/" -e "s/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/$SN/" > ${PROJDIR}/frame-${FRAMENUM}.svg
+    ${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
+    ((FRAMENUM++))
+done
+
+# Generate final frame, with full speakername + title
+echo "Generate completed title"
+cat ${SOURCEDIR}/${SOURCEFILE} | sed -e "s/TITLE1/$TITLE1/" -e "s/TITLE2/$TITLE2/" -e "s/TITLE3/$TITLE3/" -e "s/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/$SPEAKERNAME/" > ${PROJDIR}/frame-${FRAMENUM}.svg
+${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
+LASTFRAME=$FRAMENUM
+((FRAMENUM++))
+
+# Now copy the rendered output of the last frame a few more times so we can read it before the video ends
+for i in `seq 0 1 100`
+do
+    echo "Duplicating frame ${FRAMENUM}"
+    cp frame-${LASTFRAME}.webp frame-${FRAMENUM}.webp
+    ((FRAMENUM++))
+done
+
+# Fade this image out over 100 frames back to the normal view
+echo "Generate fade-out-sequence"
+for i in `seq 0 3 100`
+do
+    echo "Generate frame ${FRAMENUM}"
+    ${CONV} -colorize ${i}% frame-${LASTFRAME}.svg frame-${FRAMENUM}.webp
+    ((FRAMENUM++))
+done
+
+echo "Rendering to video"
+ffmpeg -framerate 30 -i frame-%d.webp -c:v libx264 -r 30 intro-x264.mkv
+ffmpeg -framerate 30 -i frame-%d.webp -c:v vp9 -r 30 intro-vp9.webm