From 43a3d03d9b9fb49616b807553fa624785530c5ae Mon Sep 17 00:00:00 2001
From: Luxferre <lux@ferre>
Date: Tue, 26 May 2026 15:12:47 +0300
Subject: [PATCH] first upload

---
 README.md |  9 +++++++++
 ys        | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 54 insertions(+)
 create mode 100644 README.md
 create mode 100755 ys

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8e92cb4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# Bash goodies: a useful collection of single-file, Bash shell scripts
+
+This is a set of Bash-specific scripts for quality-of-life improvement.
+
+For POSIX shell compatible scripts, see the [sh-goodies](https://codeberg.org/luxferre/sh-goodies) repo.
+
+## List
+
+* [YouShare](./ys): a way to securely store any set of files/directories inside a video
diff --git a/ys b/ys
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--- /dev/null
+++ b/ys
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+#!/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