From 82dafd7e902f01310cfe0eb87f267b185ab7ff59 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Kucharczyk?= <lukas@kucharczyk.xyz>
Date: Sat, 9 Jul 2022 21:18:04 +0200
Subject: [PATCH] add delete_video_track_titles

---
 delete_video_track_titles.sh | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100755 delete_video_track_titles.sh

diff --git a/delete_video_track_titles.sh b/delete_video_track_titles.sh
new file mode 100755
index 0000000..49158c2
--- /dev/null
+++ b/delete_video_track_titles.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+SCRIPT_NAME=$(basename "$0")
+test -z "${1}" && echo "File not specified or doesn't exist, aborting. Usage: $SCRIPT_NAME \$FILENAME" && exit 1
+FILE=$1
+# TODO: use -J and jq '.tracks[] | [.properties.number, .type, .codec, .properties.track_name]'
+TRACKS=$(mkvmerge --identify "$FILE" | awk -F"[: ]" '$0 ~ /Track ID/{print $3}')
+# capture JSON output and remove the excessively large code_private_data field
+JSON_OUTPUT=$(mkvmerge -J "$FILE" | jq '.tracks[] | del(.properties.codec_private_data)')
+for TRACK in $TRACKS; do
+    TRACK_NAME=$(echo "$JSON_OUTPUT" | jq "select(.id == $TRACK).properties.track_name")
+    echo -n "Track no. ${TRACK} currently set to $TRACK_NAME... "
+    shopt -s nocasematch
+    [[ $TRACK_NAME =~ full|titles|comment|director ]] && echo "includes whitelisted word, not deleting." && continue
+    echo "deleting."
+    # mkvmerge --identify indexes tracks from 0, while mkvpropedit indexes from 1
+    mkvpropedit "$FILE" --edit track:"$((TRACK+1))" --delete name
+done
+echo "Deleting file title..."
+mkvpropedit "$FILE" --edit info --delete title
\ No newline at end of file