From d7a43337a05b086533430d1a749fd177439ced66 Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Mon, 6 May 2024 07:38:20 +0200
Subject: m
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 ffmpeg/resize-and-transcode-recursively | 65 +++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100755 ffmpeg/resize-and-transcode-recursively

(limited to 'ffmpeg/resize-and-transcode-recursively')

diff --git a/ffmpeg/resize-and-transcode-recursively b/ffmpeg/resize-and-transcode-recursively
new file mode 100755
index 0000000..8a7a207
--- /dev/null
+++ b/ffmpeg/resize-and-transcode-recursively
@@ -0,0 +1,65 @@
+#!/bin/sh
+#### rmdir test rm mv mkdir printf sed grep rev cut stat(-c "%s") ffprobe ffmpeg
+
+set -u
+
+if test $# -lt 2 || test $# -gt 3 || test -z "$1" || test -z "$2"; then
+	printf "usage: %s input-dir output-dir [max-min-dim]\n" "$0" >&2
+	exit 1
+fi
+
+err () {
+	colour="$1"
+	format="$2"
+	shift 2
+	printf '\x1b['"${colour}m${format}"'\x1b[m\n' "$@" >&2
+}
+
+alert () { err "1;31" "$@"; }
+header () { err "1;34" "$@"; }
+subheader () { err "34" "$@"; }
+red () { err "31" "$@"; }
+green () { err "32" "$@"; }
+yellow () { err "33" "$@"; }
+magenta () { err "35" "$@"; }
+cyan () { err "36" "$@"; }
+
+input="$(printf '%s\n' "$1" | sed '$s/\/*$/\//')"
+output="$(printf '%s\n' "$2" | sed '$s/\/*$/\//')"
+shift 2
+
+process() {
+	d="$1"
+	shift 1
+	for f in "$d"*; do
+		if test -L "$f"; then
+			continue
+		elif test -f "$f"; then
+			if printf '%s\n' "$f" | sed -n '$p' | grep '\.tmp\.mkv$' >/dev/null; then
+				alert 'Old temporary file found: %s' "$f"
+				continue
+			fi
+			file="${f#$input}"
+			keep="$output$file"
+			tmp="$(printf '%s\n' "$f" | rev | cut -d . -f 2- | rev).tmp.mkv"
+			out="$(printf '%s\n' "$keep" | rev | cut -d . -f 2- | rev).mkv"
+			mkdir -p -- "$(dirname -- "$out")"
+			resize-and-transcode "$f" "$tmp" "$@"
+			r=$?
+			if test $r = 0; then
+				if ! mv -- "$tmp" "$out" ; then
+					alert 'Failed to move %s to %s' "$tmp" "$out"
+				elif ! rm -- "$f"; then
+					alert 'Failed to remove old file: %s' "$f"
+				fi
+			elif test $r = 1; then
+				mv -- "$f" "$keep"
+			fi
+		elif test -d "$f"; then
+			process "$f/" "$@"
+		fi
+	done
+	rmdir -- "$d" 2>/dev/null || :
+}
+
+process "$input" "$@"
-- 
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