some tempfile optimizations

ys

@@ -9,31 +9,25 @@ if [[ "$1" = "e" ]]; then
   OUTFILE="$2"
   shift
   shift
-  PARFILE="$(mktemp -u)"
-  ENCFILE="$(mktemp -u)"
-  echo "Compressing and encrypting..."
-  [[ -z "$YS_PASS" ]] && read -rs -p 'Password: ' YS_PASS
+  PARFILE="$(mktemp -t 'YS-XXXXXXXX')"
+  [[ -z "$YS_PASS" ]] && read -rs -p 'Encryption password: ' YS_PASS
+  echo "Processing..."
   tar --use-compress-program='zstd -T0 -10' -cf - -- $* | \
-    openssl aes-256-cbc -e -pbkdf2 -out "$ENCFILE" -pass "pass:$YS_PASS"
-  echo "Adding redundancy..."
-  xpar -Je -i 3 -H blake2b "$ENCFILE" "$PARFILE"
+    openssl aes-256-cbc -e -pbkdf2 -pass "pass:$YS_PASS" | \
+    xpar -Je -i 3 -H blake2b > "$PARFILE"
   truncate -s $(( ( $(wc -c < "$PARFILE") + 7199 ) / 7200 * 7200 )) "$PARFILE"
-  echo "Encoding video..."
   ffmpeg -hide_banner -f rawvideo -pixel_format monob -video_size 320x180 -framerate 60 \
     -i "$PARFILE" -vf "scale=1280:720:flags=neighbor,format=monob" \
     -c:v libvpx-vp9 -lossless 1 -deadline realtime -speed 8 -row-mt 1 -aq-mode 0 \
     -pix_fmt yuv420p -f webm "${OUTFILE}"
-  rm -f "$PARFILE" "$ENCFILE"
+  rm -f "$PARFILE"
   echo "Done!"
 elif [[ "$1" = "d" ]]; then
-  PARFILE="$(mktemp -u)"
-  echo "Decoding video..."
-  ffmpeg -hide_banner -i "$2" -vf "scale=320:180:flags=neighbor,format=monob" -f rawvideo "$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:$YS_PASS" \
-    | tar --use-compress-program='zstd -T0' -xf -
-  rm -f "$PARFILE"
+  echo "Processing..."
+  [[ -z "$YS_PASS" ]] && read -rs -p 'Decryption password: ' YS_PASS
+  ffmpeg -hide_banner -i "$2" -vf "scale=320:180:flags=neighbor,format=monob" -f rawvideo - | \
+    xpar -Jdc | openssl aes-256-cbc -d -pbkdf2 -pass "pass:$YS_PASS" | \
+    tar --use-compress-program='zstd -T0' -xf -
   echo "Done!"
 else
   echo "Invalid mode! Use e or d"