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authorSacha Chua <sacha@sachachua.com>2023-10-17 11:59:28 -0400
committerSacha Chua <sacha@sachachua.com>2023-10-17 11:59:28 -0400
commit0963815d6bb6e9cf01b95aa05c3b34a3d6fcaa22 (patch)
tree4fa0feaa28cd551bc2e2e9a98a92abb6895a25ce /roles/prerec/templates
parentd51d86133dbd93bbf6203fdb1683a23aa40beae6 (diff)
downloademacsconf-ansible-0963815d6bb6e9cf01b95aa05c3b34a3d6fcaa22.tar.xz
emacsconf-ansible-0963815d6bb6e9cf01b95aa05c3b34a3d6fcaa22.zip
add prerec scripts
Diffstat (limited to 'roles/prerec/templates')
-rw-r--r--roles/prerec/templates/Makefile13
-rwxr-xr-xroles/prerec/templates/mux-subs.sh24
-rwxr-xr-xroles/prerec/templates/remux.sh36
-rwxr-xr-xroles/prerec/templates/rename-original.sh15
-rwxr-xr-xroles/prerec/templates/verify-main.sh115
5 files changed, 201 insertions, 2 deletions
diff --git a/roles/prerec/templates/Makefile b/roles/prerec/templates/Makefile
new file mode 100644
index 0000000..53b49be
--- /dev/null
+++ b/roles/prerec/templates/Makefile
@@ -0,0 +1,13 @@
+# {{ ansible_managed }}
+
+PRERECS_FINAL := $(wildcard {{ emacsconf_id }}-*--final.webm)
+PRERECS_MAIN := $(patsubst %--final.webm, %--main.webm, $(PRERECS_FINAL))
+
+.PHONY: all
+all: $(PRERECS_MAIN) $(PRERECS_FINAL)
+
+emacsconf-%--main.webm: {{ emacsconf_id }}-%--final.webm
+ cp "$<" "$@"
+
+emacsconf-%--final.webm: {{ emacsconf_id }}-%--main.vtt
+ mux-subs.sh "$@" "$<"
diff --git a/roles/prerec/templates/mux-subs.sh b/roles/prerec/templates/mux-subs.sh
new file mode 100755
index 0000000..87702ad
--- /dev/null
+++ b/roles/prerec/templates/mux-subs.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# {{ ansible_managed }}
+# Mixes in captions
+# Usage: scripts/mux-subs.sh $video $vtt
+
+set -euo pipefail
+
+cleanup() {
+ if [[ -v tmp_file ]]; then
+ rm -f -- "$tmp_file"
+ fi
+}
+trap cleanup EXIT
+
+vid="$1"
+sub="$2"
+
+if head -1 "$sub" | grep -q -- captioned; then
+ tmp_file="$(basename "$vid" ".webm")-new.webm"
+ ffmpeg -y -i "$vid" -i "$sub" -c copy -metadata:s:s:0 language=eng -disposition:s:s:0 default "$tmp_file" && \
+ mv "$tmp_file" "$vid"
+else
+ touch -m "$vid"
+fi
diff --git a/roles/prerec/templates/remux.sh b/roles/prerec/templates/remux.sh
new file mode 100755
index 0000000..c378133
--- /dev/null
+++ b/roles/prerec/templates/remux.sh
@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+# {{ ansible_managed }}
+# Mix in the normalized audio
+# Usage: remux.sh $input_video
+
+with_suffix() {
+ echo "$input_video" | sed "s/--\(reencoded\|original\).webm\$/--$1/"
+}
+
+input_video="$1"
+input_audio="$(with_suffix "normalized.opus")"
+output_video="$(with_suffix "final.webm")"
+main_video="$(with_suffix "main.webm")"
+main_subs="$(with_suffix "main.vtt")"
+
+command="$(cat<<EOF
+ffmpeg -i "$input_video" -i "$input_audio" -c:v copy -c:a copy -map 0:v:0 -map 1:a:0 "$output_video" &&
+ cp "$output_video" "$main_video" &&
+ if [[ -f "$main_subs" ]]; then touch -m "$main_subs"; fi
+EOF
+)"
+
+printf "input: %s\ncomputed output: %s\nrelated main: %s\n\n" "$input_video" "$output_video" "$main_video"
+printf "Produced incantation:\n%s\n\n" "$command"
+
+while true;
+do
+ read -r -p "Run it? y/n " -n 1 -r response
+ if [[ $response =~ ^([yY])$ ]]; then
+ eval "$command"
+ exit 0
+ else
+ printf "\nExiting\n"
+ exit 3
+ fi
+done
diff --git a/roles/prerec/templates/rename-original.sh b/roles/prerec/templates/rename-original.sh
index 110d39a..0499ae8 100755
--- a/roles/prerec/templates/rename-original.sh
+++ b/roles/prerec/templates/rename-original.sh
@@ -1,13 +1,24 @@
#!/bin/bash
# {{ ansible_managed }}
+# Usage: rename-original.sh $slug $file [$extra] [$talks-json]
SLUG=$1
FILE=$2
-TALKS_JSON=${3:-~/current/talks.json}
+TALKS_JSON=${4:-~/current/talks.json}
+EXTRA=""
+if [ -z ${3-unset} ]; then
+ EXTRA=""
+elif [ -n "$3" ]; then
+ EXTRA="--$3"
+elif echo "$FILE" | grep -e '\(webm\|mp4\|mov\)'; then
+ EXTRA="--original"
+fi
filename=$(basename -- "$FILE")
extension="${filename##*.}"
filename="${filename%.*}"
FILE_PREFIX=$(jq -r '.talks[] | select(.slug=="'$SLUG'")["file-prefix"]' < $TALKS_JSON)
-mv "$FILE" $FILE_PREFIX--original.$extension
+mv "$FILE" $FILE_PREFIX$EXTRA.$extension
+echo $FILE_PREFIX$EXTRA.$extension
+# Copy to original if needed
if [ -f $FILE_PREFIX--original.webm ] && [ ! -f $FILE_PREFIX--main.$extension ]; then
cp $FILE_PREFIX--original.$extension $FILE_PREFIX--main.webm
fi
diff --git a/roles/prerec/templates/verify-main.sh b/roles/prerec/templates/verify-main.sh
new file mode 100755
index 0000000..541e0b6
--- /dev/null
+++ b/roles/prerec/templates/verify-main.sh
@@ -0,0 +1,115 @@
+#!/usr/bin/env bash
+# {{ ansible_managed }}
+# Checks that files have the most up-to-date --main.webm.
+# Usage: scripts/verify-main.sh
+
+set -euo pipefail
+
+log() {
+ printf "%b\n" "$1"
+}
+
+color_red="\e[31m"
+color_green="\e[32m"
+color_white="\e[0m"
+
+log2() {
+ log "${color_green}$1${color_white}"
+}
+
+log3() {
+ log "${color_red}$1${color_white}"
+}
+
+plural () {
+ word="$1"
+ number="$2"
+ if [ "$number" = 1 ] || [ "$number" = -1 ]; then
+ echo "${word}"
+ else
+ case $1 in
+ "has" )
+ echo "have"
+ ;;
+ "needs" )
+ echo "need"
+ ;;
+ * )
+ echo "${word}s"
+ ;;
+ esac
+ fi
+}
+
+updated=0
+not_updated=0
+
+with_suffix() {
+ echo "$file" | sed "s/--main.webm/--$1.webm/"
+}
+
+verify() {
+ type="$1"
+ candidate="$(with_suffix "$type")"
+ if [ -f "$candidate" ]; then
+ if [[ "$hash" == "$(md5 "$candidate")" ]]; then
+ # Nothing to fix for this file
+ return 0
+ else
+ log2 "${type^} version available for $id"
+ command="rm \"$file\"; cp \"$candidate\" \"$file\" "
+ fix "$command"
+ fi
+ else
+ if [[ "$type" == "final" ]]; then
+ log3 "${type^} version missing for $id"
+ fi
+ # Stop looking at this file
+ return 1
+ fi
+}
+
+fix() {
+ command="$1"
+ # printf "Command to fix it:\n%s\n" "$command"
+ while true;
+ do
+ read -r -p "Update? y/n " -n 1 -r response
+ if [[ $response =~ ^([yY])$ ]]; then
+ eval "$command"
+ printf "\n"
+ updated=$((updated+1))
+ return 0
+ else
+ printf "\n"
+ not_updated=$((not_updated+1))
+ return 0
+ fi
+ done
+}
+
+md5() {
+ md5sum "$1" | awk '{ print $1 };'
+}
+
+log "Looking for prerecs to update..."
+
+for file in *--main.webm; do
+ id="$(echo "$file" | awk -F"-" '{ print $3 };')"
+ hash="$(md5 "$file")"
+
+ if verify "final" || verify "reencoded" || verify "original"; then
+ continue
+ fi
+done
+
+if [[ "$updated" -gt 0 ]] || [[ "$not_updated" -gt 0 ]]; then
+ if [[ "$updated" -gt 0 ]]; then
+ log "$updated $(plural "prerec" $updated) $(plural "has" $updated) been updated"
+ fi
+ if [[ "$not_updated" -gt 0 ]]; then
+ log "$not_updated $(plural "prerec" $not_updated) $(plural "needs" $not_updated) updating"
+ fi
+else
+ log "Nothing to update!"
+fi