index.sh

   1 #!/usr/bin/env bash
   2 # Copyright: Julien Moutinho <julm+camera@sourcephile.fr>
   3 # License: AGPL-3.0-or-later
   4 # Usage:
   5 #   $ mv    julm/2023/src/02/IMG_20230228_111645{,.fav}.jpg
   6 #   $ echo >julm/2023/src/02/IMG_20230228_111645.fav.txt "Some HTML <b>comment</b> about the picture"
   7 #   $ ./index.sh julm/2023/src/02
   8 #   $ sensible-browser julm/2023/fav/02/index.html
   9 #
  10 # NginxConfig:
  11 #   locations."/julm/perso/camera/" = {
  12 #     alias = "${root}/julm/perso/camera/";
  13 #     basicAuthFile = "/run/credentials/nginx.service/autogeree.net.www.julm.perso.camera.htpasswd";
  14 #   };
  15 #   # Disable basicAuthFile for by-uuid
  16 #   locations."~ ^/julm/perso/camera/([0-9]+/[0-9][0-9]/by-uuid/[0-9a-f-]+/.+)$" = {
  17 #     alias = "${root}/julm/perso/camera/$1";
  18 #   };
  19
  20 # shellcheck disable=SC2086
  21
  22 cd "${0%/*}"
  23 set -eu
  24 shopt -s nullglob
  25
  26 ffmpeg_ () { local -; set -x; nice -19 ffmpeg </dev/null -hide_banner -loglevel warning -stats -y "$@"; }
  27 magick_ () { local -; set -x; nice -19 magick "$@"; }
  28 mv_ () { local -; mv -i >&2 "$@"; }
  29
  30 for dir in "$@"; do
  31   IFS=/ read -r user year x month x <<<"$dir"
  32   test -n "$year" || exec "$0" "$user"/2*/src/*/
  33   test -n "$month" || exec "$0" "$user"/"$year"/src/*/
  34   pushd "$user/$year" >/dev/null
  35   test -d src || { popd; continue; }
  36   mkdir -p fav
  37   # cp, not ln, because in push.sh --copy-links cannot be used for by-uuid/
  38   cp -f --remove-destination -t fav ../../index.css
  39   test -d src/"$month" || { popd; continue; }
  40   {
  41   genDate=$(date +%s)
  42   cat <<EOF
  43   <!doctype html>
  44   <!-- Generator: https://git.sourcephile.fr/julm/camera.git -->
  45   <!-- GenerationDate: $(date -R -d@"$genDate") -->
  46   <html>
  47
  48   <head lang="fr">
  49     <meta charset="utf-8">
  50     <title>camera/$user/$year/$month</title>
  51     <link rel="stylesheet" href="../index.css?$genDate">
  52   </head>
  53
  54   <body>
  55
  56   <nav class="path">
  57   <a href='../../..'>camera</a>/ <a href='../..'>$user</a>/ <a href='..'>$year</a>/
  58 EOF
  59   for m in {01..12}; do
  60     if [ "$m" -eq 01 ]; then printf '{ '; fi
  61     if [ "$m" -eq "$month" ]; then
  62       printf %s "$month"
  63     else
  64       printf %s "<a href='../$m'>$m</a>"
  65     fi
  66     if [ "$m" -eq 12 ]; then printf ' }'; else printf ', '; fi
  67   done
  68   cat <<EOF
  69   </nav>
  70
  71   <div class="camera">
  72   <ul>
  73 EOF
  74   echo >&2 "$dir: processing favorites in chronological order"
  75   # Time is encoded in filenames like so: MM/{IMG,VID}_YYYYMMDD_hhmmss.*
  76   # hence sorting after the underscore (2nd field, 5th char).
  77   (cd src; find -L "$month" -name '*.fav.*' -not -name "*.txt") | sort -t/ -k2.5 |
  78   while read -r src; do
  79     echo >&2 "$dir: processing $year/src/$src"
  80     base=${src%.*}
  81     name=${base#*/}
  82     id=${name%%.*}
  83     creationDate=$(printf %s "${src##*/???_}" | sed -e 's/\(....\)\(..\)\(..\)_\(..\)\(..\)\(..\).*/\1-\2-\3 \4:\5:\6/')
  84     test -e fav/"$base".uuid ||
  85     uuidgen --random >fav/"$base".uuid
  86     uuid=$(cat fav/"$base".uuid)
  87     mkdir -p fav/"${base%/*}"
  88     mkdir -p {tmp,wip}/fav/"${base%/*}"
  89     mkdir -p fav/"$month"/by-uuid/"$uuid"
  90     wow=
  91     test "${src##*.wow.}" = "${src}" || wow=wow
  92     case "$src" in
  93       *.jpg)
  94         echo "<li id='$id' class='$wow'><div class='item'>"
  95         echo "<picture>"
  96           printf "<source type='image/avif' srcset='"
  97           for w in {1200,600,300}; do
  98             test fav/"$base"."$w"x.avif -nt src/"$src" || {
  99               magick_ src/"$src" \
 100                 -sampling-factor 4:2:0 -colorspace sRGB \
 101                 -auto-orient -thumbnail "$w"x -unsharp 0x.5 \
 102                 wip/fav/"$base"."$w"x.avif
 103               mv_ {wip/,}fav/"$base"."$w"x.avif
 104             }
 105             printf %s "$name.${w}x.avif ${w}w, "
 106           done
 107           echo "' />"
 108           w=600
 109           test fav/"$base"."$w"x.avif -nt src/"$src" || {
 110             magick_ -define jpeg:size=$((w * 2))x src/"$src" \
 111               -sampling-factor 4:2:0 -interlace JPEG -colorspace sRGB \
 112               -auto-orient -thumbnail "$w"x -unsharp 0x.5 \
 113               wip/fav/"$base"."$w"x.jpg
 114             mv_ {wip/,}fav/"$base"."$w"x.avif
 115           }
 116           echo "<source type='image/jpeg' srcset='$name.${w}x.jpg ${w}w' />"
 117           echo "<img src='$name.${w}x.jpg' alt='$creationDate' />"
 118         echo "</picture>"
 119         dst="$name".1200x.avif
 120         ln -fs -t fav/"$month"/by-uuid/"$uuid" ../../"$dst"
 121         ;;
 122       *.mp4)
 123         # Slow, but needed to make wide videos span two columns of the CSS grid
 124         orient=$(ffprobe -v 0 -select_streams v:0 -show_entries stream_side_data=rotation -of default=nw=1:nk=1 src/"$src")
 125         if [ -z "$orient" ]; then scale="-2:360"; else scale="360:-2"; fi
 126         echo "<li id='$id' class='$wow vid-orient-$orient'><div class='item'>"
 127         test fav/"$base".avif -nt src/"$src" || {
 128           ffmpeg_ -i src/"$src" \
 129             -map 0:v \
 130               -filter:v format=yuv420p10le,scale="$scale" \
 131               -frames:v 1 -crf 35 \
 132             wip/fav/"$base".avif
 133           mv_ {wip/,}fav/"$base".avif
 134         }
 135         need_opus () {
 136           test tmp/fav/"$base".opus -nt src/"$src" || {
 137             ffmpeg_ -i src/"$src" \
 138               -map 0:a -c:a libopus -b:a 64k -application voip \
 139               wip/fav/"$base".opus
 140             mv_ {wip,tmp}/fav/"$base".opus
 141           }
 142         }
 143         test fav/"$base".360p.av1.webm -nt src/"$src" || {
 144           need_opus
 145           # See https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Docs/CommonQuestions.md
 146           # See https://gist.github.com/BlueSwordM/86dfcb6ab38a93a524472a0cbe4c4100
 147           # -preset       Range from 0 to 13, with higher numbers providing a higher encoding speed;
 148           # -crf          Range is 0-63, with the default being 50.
 149           #               Lower values correspond to higher quality and greater file size
 150           # yuv420p
 151           # yuv420p10le   can represent more shades of grey and colors
 152           #               and is less prone to certain artifacts, such as color
 153           #               banding and loss of detail in low luma areas
 154           #               cost in terms of resulting file size (~5%),
 155           #               can also be more compute-intensive than 8-bit in some decoders
 156           # tune=0        subjective mode often results in an image with greater
 157           #               sharpness and is intended to produce a result that appears to humans
 158           #               to be of high quality (as opposed to doing well on basic objective measures,
 159           #               such as PSNR)
 160           # scd=1         biases the encoders' scene detection to insert more intra refreshes if needed,
 161           #               and reduce temporal dependencies around scene-changes.
 162           # scm=0         screen content mode decision making. 0 is best for live-action.
 163           ffmpeg_ -i src/"$src" -i tmp/fav/"$base".opus \
 164             -map 0:v \
 165               -filter:v format=yuv420p,scale="$scale" \
 166               -c:v libsvtav1 -preset 10 -crf 35 \
 167                 -svtav1-params keyint=30s:tune=0:enable-overlays=1:scd=1:scm=0:fast-decode=1:tile-columns=2 \
 168             -map 1:a -c:a copy \
 169             wip/fav/"$base".360p.av1.webm
 170           mv_ {wip/,}fav/"$base".360p.av1.webm
 171         }
 172         dst="$name".360p.av1.webm
 173         ln -fs -t fav/"$month"/by-uuid/"$uuid" ../../"$dst"
 174         #test fav/"$base".360p.vp9.webm -nt src/"$src" || {
 175         #  need_opus
 176         #  # See https://developers.google.com/media/vp9/settings/vod#recommended_settings
 177         #  # See https://gist.github.com/mrintrepide/3033c35ee9557e66cff7806f48dbd339
 178         #  set -- \
 179         #    -filter:v format=yuv420p10le,scale="$scale" \
 180         #    -c:v libvpx-vp9 -quality good -crf 20 \
 181         #    -minrate 138k -b:v 276k -maxrate 400k \
 182         #    -cpu-used 4 -static-thresh 0 -tile-columns 0 -tile-rows 0 -frame-parallel 0 \
 183         #    -row-mt 1 -aq-mode 0 -auto-alt-ref 6 -lag-in-frames 25 -enable-tpl 1
 184         #  test -e tmp/fav/"$base".360p.vp9.webm-0.log || {
 185         #    # FIXME: how to disable h264 debug log?
 186         #    ffmpeg 2>/dev/null -i src/"$src" \
 187         #     -map 0:v "$@" -pass 1 -passlogfile wip/fav/"$base".360p.vp9.webm \
 188         #     -f null \
 189         #     /dev/null
 190         #    mv_ -t tmp/fav/"${base%/*}" wip/fav/"$base".360p.vp9.webm-*.log
 191         #  }
 192         #  ffmpeg -i src/"$src" -i tmp/fav/"$base".opus \
 193         #    -map 0:v "$@" -pass 2 -passlogfile tmp/fav/"$base".360p.vp9.webm \
 194         #    -map 1:a -c:a copy \
 195         #    wip/fav/"$base".360p.vp9.webm
 196         #  mkdir -p fav/"$month"/by-uuid/"$uuid"
 197         #  mv_ wip/fav/"$base".360p.vp9.webm fav/"$base".360p.vp9.webm
 198         #  rm -fv tmp/fav/"$base".360p.vp9.webm-*.log
 199         #}
 200         #test fav/"$base".mp4 -nt src/"$src" || {
 201         #  ffmpeg -i src/"$src" \
 202         #    -filter:v format=yuv420p \
 203         #    -c:v libx264 -preset medium -crf 22 \
 204         #    -tune zerolatency \
 205         #    -maxrate 1M -bufsize 2M \
 206         #    -movflags use_metadata_tags +faststart \
 207         #    -c:a libopus -base:a 64k -application voip \
 208         #    -filter:v "scale=iw/2:ih/2" \
 209         #    wip/fav/"$base".mp4
 210         #  mv_ wip/fav/"$base".mp4 fav/"$base".mp4
 211         #}
 212         #  class='orient$orient'
 213         echo "<video controls preload=none poster='$name.avif'>"
 214           # See https://jakearchibald.com/2022/html-codecs-parameter-for-av1/
 215           # and ffmpeg -i fav/$month/foo.av1.webm -c:v copy -bsf:v trace_headers -f null /dev/null |&
 216           #     grep -e seq_profile -e seq_level_idx -e seq_tier -e high_bitdepth -e twelve_bit
 217           P=0; LL=01; T=M; DD=08
 218           echo "<source type='video/webm; codecs=av01.$P.$LL$T.$DD' src='$name.360p.av1.webm' />"
 219           echo "<p><a href='$name.360p.av1.webm'>$name.360p.av1.webm</a></p>"
 220         echo "</video>"
 221     esac
 222     touch -a src/"$base".txt
 223     printf %s "<span class='comment'>"
 224     sed -e '$q;s/$/<br \/>\n/' src/"$base".txt
 225     echo "</span>"
 226     echo "</div>" # class='item'
 227     echo "<span class='infos'>"
 228     echo "  <span class='creationDate'>$creationDate</span>"
 229     echo "</span>"
 230     echo "<span class='links'>"
 231     echo "  <a class='by-uuid' href='by-uuid/$uuid/${dst##*/}' title='Lien public vers cette capture' target='_blank'>@</a>"
 232     echo "  <a class='anchor' href='#$id' title='Ancre vers cette capture'>#</a>"
 233     echo "</span>"
 234     echo "</li>"
 235     echo
 236   done
 237   cat <<EOF
 238   </ul>
 239   </div>
 240
 241   </body>
 242   </html>
 243 EOF
 244   } >tmp/fav/"$month"/index.html
 245   mv_ -f {tmp/,}fav/"$month"/index.html
 246
 247   echo >&2 "$dir: removing any deleted favorites"
 248   (cd fav; find -L "$month" -mindepth 1 -not -path '*/by-uuid/*' -type f -not -name index.html) |
 249   while read -r fav; do
 250     base=$fav
 251     base=${base%.300x.avif}
 252     base=${base%.600x.avif}
 253     base=${base%.1200x.avif}
 254     base=${base%.avif}
 255     base=${base%.360p.av1.webm}
 256     base=${base%.uuid}
 257     name=${base#*/}
 258     unset hasSrc
 259     for src in src/"$base".???; do hasSrc=set; done
 260     test "${hasSrc:+set}" || {
 261       echo >&2 "$dir: removing $year/fav/$fav"
 262       rm -f fav/"$fav"
 263       rm -fv fav/"$month"/by-uuid/*/"$name".{300x.avif,600x.avif,1200x.avif,avif,360p.av1.webm,uuid}
 264     }
 265   done
 266   rmdir -p 2>/dev/null fav/"$month"/by-uuid/*/ || true
 267   rmdir -p 2>/dev/null wip/fav/* || true
 268   popd >/dev/null
 269 done