feat: huge update

.local/bin/ffreduce

@@ -0,0 +1,19 @@
+#!/bin/bash -e
+
+in="$1"; shift
+out="$1"; shift
+smalside="${1:-480}"; shift || true
+
+if ! [ -r "$in" ]; then
+    echo "error: can't read '$in'" >&2
+    exit 1
+fi
+
+if [ -z "$out" ]; then
+    echo "error: output file name can't be empty" >&2
+    exit 1
+fi
+
+set -x
+#ffmpeg -i "$in" -r 24 -vcodec libx265 -vf "scale=-2:$smalside,setpts=0.5*PTS" "$@" "$out"
+ffmpeg -i "$in" -r 24 -vcodec libx265 -vf "scale=-2:$smalside" "$@" "$out"