Cleanup script, use functions
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2 changed files with 114 additions and 101 deletions
189
generate.sh
189
generate.sh
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@ -1,108 +1,121 @@
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#!/bin/bash
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# Configuration
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SOURCEDIR=$(pwd)
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PROJECT=$1
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BASETEMPLATE="nluug-title-template.svg"
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SOURCEFILE="event.svg"
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VIDEODIR=${SOURCEDIR}/output
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PROJDIR=/tmp/nluug-intro-${PROJECT}
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if [ -z "${PROJECT}" ]; then
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echo "Usage: $0 <project>"
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exit 1
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fi
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if [ -z "$EVENTNAME" ]; then
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echo "Specify EVENTNAME env-var"
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exit 2
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fi
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if [ -z "$SPEAKERNAME" ]; then
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echo "Specify SPEAKERNAME env-var"
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exit 3
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fi
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if [ -z "$TITLE1" ] || [ -z "$TITLE2" ] || [ -z "$TITLE3" ]; then
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echo "Specify TITLE1/TITLE2/TITLE3 env-vars"
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exit 4
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fi
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# Usage:
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# EVENTNAME="NLUUG Najaar 5 November 2024"
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# MAXLENGTH="SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER"
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#SPEAKERNAME="Example Speaker Name"
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#TITLE1="Keynote: Some example title"
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#TITLE2="With 3 lines, or use some whitespace"
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#TITLE3="If less are needed"
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VIDEODIR="${SOURCEDIR}/output"
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PROJDIR="/tmp/nluug-intro-${PROJECT}"
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CONV="convert -background black -fill black -alpha off"
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FRAMENUM=0
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# Make project directory
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mkdir -p ${PROJDIR}; cd ${PROJDIR}
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# Validate input
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validate_input() {
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if [ -z "${PROJECT}" ]; then
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echo "Usage: $0 <project>"
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exit 1
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fi
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# Customize template to this event from base template
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awk -v eventname="$EVENTNAME" '{gsub(/EVENTNAMEEVENTNAME/, eventname); print}' "${SOURCEDIR}/${BASETEMPLATE}" > ${SOURCEFILE}
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if [ -z "$EVENTNAME" ]; then
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echo "Specify EVENTNAME env-var"
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exit 2
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fi
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# Create initial image without title/speaker info
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awk '{gsub(/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/, ""); gsub(/TITLE[123]/, ""); print}' ${SOURCEFILE} > frameclear.svg
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if [ -z "$SPEAKERNAME" ]; then
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echo "Specify SPEAKERNAME env-var"
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exit 3
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fi
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# Fade this image in from 100% transparent to 'normal'
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echo "Generate fade-in-from-black sequence"
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for i in $(seq 100 -3 0)
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do
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echo "Generate frame ${FRAMENUM}"
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${CONV} -colorize ${i}% frameclear.svg frame-${FRAMENUM}.webp
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if [ -z "$TITLE1" ] || [ -z "$TITLE2" ] || [ -z "$TITLE3" ]; then
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echo "Specify TITLE1/TITLE2/TITLE3 env-vars"
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exit 4
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fi
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}
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# Setup project directory
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setup_project_dir() {
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mkdir -p "${PROJDIR}" || { echo "Failed to create project directory"; exit 1; }
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cd "${PROJDIR}" || { echo "Failed to change to project directory"; exit 1; }
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}
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# Generate frames
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generate_frames() {
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echo "Generate fade-in-from-black sequence"
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for i in $(seq 100 -3 0); do
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echo "Generate frame ${FRAMENUM}"
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${CONV} -colorize ${i}% frameclear.svg "frame-${FRAMENUM}.webp"
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((FRAMENUM++))
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done
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echo "Add speakername sequence"
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SLEN=${#SPEAKERNAME}
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for i in $(seq 0 ${SLEN}); do
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echo "Generate frame ${FRAMENUM}"
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SN="${SPEAKERNAME:0:i}"
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awk -v sn="$SN" '{gsub(/TITLE[123]/, ""); gsub(/SPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > "${PROJDIR}/frame-${FRAMENUM}.svg"
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${CONV} "frame-${FRAMENUM}.svg" "frame-${FRAMENUM}.webp"
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((FRAMENUM++))
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done
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echo "Add title sequence"
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for i in $(seq 0 40); do
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echo "Generate frame ${FRAMENUM}"
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T1="${TITLE1:0:i}"
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T2="${TITLE2:0:i}"
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T3="${TITLE3:0:i}"
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awk -v t1="$T1" -v t2="$T2" -v t3="$T3" -v sn="$SN" '{gsub(/TITLE1/, t1); gsub(/TITLE2/, t2); gsub(/TITLE3/, t3); gsub(/SPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > "${PROJDIR}/frame-${FRAMENUM}.svg"
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${CONV} "frame-${FRAMENUM}.svg" "frame-${FRAMENUM}.webp"
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((FRAMENUM++))
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done
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echo "Generate completed title"
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awk -v t1="$TITLE1" -v t2="$TITLE2" -v t3="$TITLE3" -v sn="$SPEAKERNAME" '{gsub(/TITLE1/, t1); gsub(/TITLE2/, t2); gsub(/TITLE3/, t3); gsub(/SPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > "${PROJDIR}/frame-${FRAMENUM}.svg"
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${CONV} "frame-${FRAMENUM}.svg" "frame-${FRAMENUM}.webp"
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LASTFRAME=$FRAMENUM
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((FRAMENUM++))
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done
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echo "Add speakername sequence"
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SLEN=${#SPEAKERNAME} # Length of name
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# Copy a new frame, and fill in the speaker name 1 character at a time
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for i in $(seq 0 ${SLEN})
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do
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echo "Generate frame ${FRAMENUM}"
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SN="${SPEAKERNAME:0:i}"
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awk -v sn="$SN" '{gsub(/TITLE[123]/, ""); gsub(/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > ${PROJDIR}/frame-${FRAMENUM}.svg
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${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
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((FRAMENUM++))
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done
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for i in $(seq 0 1 100); do
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echo "Duplicating frame ${FRAMENUM}"
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cp "frame-${LASTFRAME}.webp" "frame-${FRAMENUM}.webp"
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((FRAMENUM++))
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done
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echo "Add title sequence"
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# With speakername, now add the title, 1 char (per line) at a time
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for i in $(seq 0 40)
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do
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echo "Generate frame ${FRAMENUM}"
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T1="${TITLE1:0:i}" # Substring, first i characters
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T2="${TITLE2:0:i}"
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T3="${TITLE3:0:i}"
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awk -v t1="$T1" -v t2="$T2" -v t3="$T3" -v sn="$SN" '{gsub(/TITLE1/, t1); gsub(/TITLE2/, t2); gsub(/TITLE3/, t3); gsub(/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > ${PROJDIR}/frame-${FRAMENUM}.svg
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${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
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((FRAMENUM++))
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done
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echo "Generate fade-out-sequence"
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for i in $(seq 0 3 100); do
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echo "Generate frame ${FRAMENUM}"
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${CONV} -colorize ${i}% "frame-${LASTFRAME}.svg" "frame-${FRAMENUM}.webp"
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((FRAMENUM++))
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done
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}
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# Generate final frame, with full speakername + title
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echo "Generate completed title"
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awk -v t1="$TITLE1" -v t2="$TITLE2" -v t3="$TITLE3" -v sn="$SPEAKERNAME" '{gsub(/TITLE1/, t1); gsub(/TITLE2/, t2); gsub(/TITLE3/, t3); gsub(/SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER/, sn); print}' ${SOURCEFILE} > ${PROJDIR}/frame-${FRAMENUM}.svg
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${CONV} frame-${FRAMENUM}.svg frame-${FRAMENUM}.webp
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LASTFRAME=$FRAMENUM
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((FRAMENUM++))
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# Render video
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render_video() {
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echo "Rendering to video"
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ffmpeg -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -framerate 25 -i frame-%d.webp -c:a aac -c:v libx264 -shortest -profile:v baseline -pix_fmt yuv420p -colorspace:v 'bt709' -color_primaries:v 'bt709' -color_trc:v 'bt709' -color_range:v 'tv' -r 30 "${VIDEODIR}/${PROJECT}-x264.mkv"
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}
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# Now copy the rendered output of the last frame a few more times so we can read it before the video ends
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for i in $(seq 0 1 100)
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do
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echo "Duplicating frame ${FRAMENUM}"
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cp frame-${LASTFRAME}.webp frame-${FRAMENUM}.webp
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((FRAMENUM++))
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done
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# Cleanup temporary files
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cleanup() {
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echo "Cleaning up temporary files"
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rm -rf "${PROJDIR}"
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}
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# Fade this image out over 100 frames back to the normal view
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echo "Generate fade-out-sequence"
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for i in $(seq 0 3 100)
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do
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echo "Generate frame ${FRAMENUM}"
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${CONV} -colorize ${i}% frame-${LASTFRAME}.svg frame-${FRAMENUM}.webp
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((FRAMENUM++))
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done
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# Main execution
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main() {
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validate_input
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setup_project_dir
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echo "Rendering to video"
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ffmpeg -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -framerate 25 -i frame-%d.webp -c:a aac -c:v libx264 -shortest -profile:v baseline -pix_fmt yuv420p -colorspace:v 'bt709' -color_primaries:v 'bt709' -color_trc:v 'bt709' -color_range:v 'tv' -r 30 ${VIDEODIR}/${PROJECT}-x264.mkv
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# Customize template to this event from base template
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awk -v eventname="$EVENTNAME" '{gsub(/EVENTNAMEEVENTNAME/, eventname); print}' "${SOURCEDIR}/${BASETEMPLATE}" > ${SOURCEFILE}
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# Create initial image without title/speaker info
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awk '{gsub(/SPEAKERSPEAKERSPEAKERSPEAKER/, ""); gsub(/TITLE[123]/, ""); print}' ${SOURCEFILE} > frameclear.svg
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generate_frames
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render_video
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cleanup
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}
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main
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@ -48,12 +48,12 @@
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inkscape:deskcolor="#000000"
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showgrid="false"
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inkscape:zoom="0.40174673"
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inkscape:cx="438.08695"
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inkscape:cy="311.1413"
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inkscape:window-width="2304"
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inkscape:window-height="1347"
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inkscape:cx="301.18478"
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inkscape:cy="312.38587"
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inkscape:window-width="2880"
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inkscape:window-height="1699"
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inkscape:window-x="0"
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inkscape:window-y="0"
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inkscape:window-y="64"
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inkscape:window-maximized="1"
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inkscape:current-layer="g61" />
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<g
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@ -71,9 +71,9 @@
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transform="matrix(0.64500845,0,0,0.64500845,533.85281,-45.33011)"><tspan
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x="107.36523"
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y="802.76728"
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id="tspan300"><tspan
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id="tspan303"><tspan
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dx="0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0.00010681152"
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id="tspan298">EVENTNAMEEVENTNAME</tspan></tspan></text>
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id="tspan301">EVENTNAMEEVENTNAME</tspan></tspan></text>
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<text
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xml:space="preserve"
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id="text281-5"
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@ -81,21 +81,21 @@
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transform="matrix(0.64500845,0,0,0.64500845,3.9182847,183.75561)"><tspan
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x="107.36523"
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y="802.76728"
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id="tspan304"><tspan
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dx="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00010681152 0 0 0 0 0 -0.0001373291 0 0.00019836426 0 0 0 0 0.00010681152"
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id="tspan302">SPEAKERSPEAKERSPEAKERSPEAKERSPEAKER
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id="tspan307"><tspan
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dx="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.00010681152 0 0 0 0 0 -0.0001373291"
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id="tspan305">SPEAKERSPEAKERSPEAKERSPEAKER
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</tspan></tspan><tspan
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x="107.36523"
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y="952.76728"
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id="tspan306">TITLE1
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id="tspan309">TITLE1
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</tspan><tspan
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x="107.36523"
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y="1102.7673"
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id="tspan308">TITLE2
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id="tspan311">TITLE2
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</tspan><tspan
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x="107.36523"
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y="1252.7673"
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id="tspan310">TITLE3
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id="tspan313">TITLE3
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</tspan></text>
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<image
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width="1914.1414"
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Before Width: | Height: | Size: 95 KiB After Width: | Height: | Size: 95 KiB |
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