From 2273e169082b38f2afb50d8e3ad0b028650e8b72 Mon Sep 17 00:00:00 2001
From: Mark Janssen <mark@sig-io.nl>
Date: Wed, 6 Nov 2024 19:15:43 +0100
Subject: [PATCH] Take input from env-vars, render to output directory

---
 .gitignore               |  1 +
 generate.sh              | 53 ++++++++++++++++++++++++++++++----------
 nluug-title-template.svg |  2 +-
 3 files changed, 42 insertions(+), 14 deletions(-)
 create mode 100644 .gitignore

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..53752db
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+output
diff --git a/generate.sh b/generate.sh
index 1560817..3d84673 100755
--- a/generate.sh
+++ b/generate.sh
@@ -1,24 +1,49 @@
 #!/bin/bash
 
 SOURCEDIR=`pwd`
-SOURCEFILE="nluug-title-template.svg"
-PROJDIR=`pwd`/proj1/
+PROJECT=$1
+BASETEMPLATE="nluug-title-template.svg"
+SOURCEFILE="event.svg"
+VIDEODIR=${SOURCEDIR}/output
+PROJDIR=/tmp/nluug-intro-${PROJECT}
 
+if [ -z "${PROJECT}" ]; then
+    echo "Usage: $0 <project>"
+    exit 1;
+fi
+
+if [ -z "$EVENTNAME" ]; then
+    echo "Specify EVENTNAME env-var"
+    exit 2;
+fi
+if [ -z "$SPEAKERNAME" ]; then
+    echo "Specify SPEAKERNAME env-var"
+    exit 3;
+fi
+if [ -z "$TITLE1" -o -z "$TITLE2" -o -z "$TITLE3" ]; then
+    echo "Specify TITLE1/TITLE2/TITLE3 env-vars"
+    exit 4;
+fi
+
+# EVENTNAME="NLUUG Najaar 5 November 2024"
 # MAXLENGTH="SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER"
-SPEAKERNAME="Gunes Acar"
+#SPEAKERNAME="Example Speaker Name"
 #  MAX="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
-TITLE1="Keynote: From Cookies to"
-TITLE2="Keyloggers: Understanding Modern"
-TITLE3="Online Tracking Techniques"
+#TITLE1="Keynote: Some example title"
+#TITLE2="With 3 lines, or use some whitespace"
+#TITLE3="If less are needed"
 
 CONV="convert -background black -fill black -alpha off"
 FRAMENUM=0
 
 # Make project directory
-mkdir ${PROJDIR}; cd ${PROJDIR}
+mkdir -p ${PROJDIR}; cd ${PROJDIR}
+
+# Customize tempalte to this event from base template
+cat ${SOURCEDIR}/$BASETEMPLATE | sed -e "s/EVENTNAMEEVENTNAMEEVENTNAMEEVENTNAME/$EVENTNAME/" > ${SOURCEFILE}
 
 # Create initial image without title/speaker info
-cat ${SOURCEDIR}/${SOURCEFILE} | sed -e 's/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER//' -e 's/TITLE[123]//' > ${PROJDIR}/frameclear.svg
+cat ${SOURCEFILE} | sed -e 's/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER//' -e 's/TITLE[123]//' > frameclear.svg
 
 # Fade this image in from 100% transparant to 'normal'
 echo "Generate fade-in-from-black sequence"
@@ -36,7 +61,7 @@ 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
+    cat ${SOURCEFILE} | sed -e "s/TITLE[123]//" -e "s/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/$SN/" > ${PROJDIR}/frame-${FRAMENUM}.svg
     ${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
     ((FRAMENUM++))
 done
@@ -62,14 +87,14 @@ do
     T1="${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
+    cat ${SOURCEFILE} | sed -e "s/TITLE1/$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
+cat ${SOURCEFILE} | sed -e "s/TITLE1/$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++))
@@ -92,5 +117,7 @@ do
 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
+ffmpeg -framerate 30 -i frame-%d.webp -c:v libx264 -r 30 ${VIDEODIR}/${PROJECT}-x264.mkv
+ffmpeg -framerate 30 -i frame-%d.webp -c:v vp9 -r 30 ${VIDEODIR}/${PROJECT}-vp9.webm
+
+rm *.svg frame-*.webp 
diff --git a/nluug-title-template.svg b/nluug-title-template.svg
index a5ac126..89b2442 100644
--- a/nluug-title-template.svg
+++ b/nluug-title-template.svg
@@ -71,7 +71,7 @@
        transform="matrix(0.64500845,0,0,0.64500845,576.16803,19.38728)"><tspan
          x="107.36523"
          y="802.76728"
-         id="tspan196">NLUUG Najaar 5 Nov 2024</tspan></text>
+         id="tspan196">EVENTNAMEEVENTNAMEEVENTNAMEEVENTNAME</tspan></text>
     <text
        xml:space="preserve"
        id="text281-5"