first upload

ys

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# YouStore: convert any set of files/dirs into a video file
+# that's also (somewhat) resistant to re-encoding
+# Usage: ys [e|d] [vidfile] [path...] [path...]
+# Dependencies: tar, zstd, truncate (coreutils), xpar, openssl, ffmpeg
+# Created by Luxferre in 2026, released into the public domain
+
+BASEW=320  # base frame width
+BASEH=180  # base frame height
+SCL=4      # frame scale factor
+FR=60      # frame rate in the output video
+CODEC_PARAMS='-c:v libvpx-vp9 -lossless 1 -deadline realtime -speed 8 -row-mt 1 -aq-mode 0 -pix_fmt yuv420p -f webm'
+
+BPF=$(( BASEW * BASEH / 8 )) # bytes per frame
+if [[ "$1" = "e" ]]; then
+  OUTFILE="$2"
+  shift
+  shift
+  ARCHFILE="$(mktemp -u)"
+  PARFILE="$(mktemp -u)"
+  ENCFILE="$(mktemp -u)"
+  echo "Compressing..."
+  tar --use-compress-program='zstd -19' -cf "$ARCHFILE" -- $*
+  echo "Encrypting..."
+  [[ -z "$YS_PASS" ]] && read -rs -p 'Password: ' YS_PASS
+  openssl aes-256-cbc -e -pbkdf2 -in "$ARCHFILE" -out "$ENCFILE" -pass "pass:$YS_PASS"
+  echo "Adding redundancy..."
+  xpar -Je -i 3 -H blake2b "$ENCFILE" "$PARFILE"
+  truncate -s $(( ( $(stat -c%s "$PARFILE") + BPF - 1 ) / BPF * BPF )) "$PARFILE"
+  echo "Encoding video..."
+  ffmpeg -hide_banner -f rawvideo -pixel_format monob -video_size ${BASEW}x${BASEH} -framerate $FR -i "$PARFILE" -vf "scale=iw*${SCL}:ih*${SCL}:flags=neighbor,format=monob" $CODEC_PARAMS "${OUTFILE}.webm"
+  rm -f "$ARCHFILE" "$PARFILE" "$ENCFILE"
+  echo "Done!"
+elif [[ "$1" = "d" ]]; then
+  PARFILE="$(mktemp -u)"
+  echo "Decoding video..."
+  ffmpeg -hide_banner -i "$2" -vf "scale=${BASEW}:${BASEH}:flags=neighbor,format=monob" -f rawvideo "$PARFILE"
+  echo "Restoring, decrypting and decompressing..."
+  [[ -z "$YS_PASS" ]] && read -rs -p 'Password: ' YS_PASS
+  xpar -Jdc "$PARFILE" | openssl aes-256-cbc -d -pbkdf2 -pass "pass:$YS_PASS" | tar --use-compress-program='zstd' -xf -
+  rm -f "$PARFILE"
+  echo "Done!"
+else
+  echo "Invalid mode! Use e or d"
+fi