feat(user/split_audiobook.sh):Split audiobooks by chapter

[BK-2020-03.git] / user / split_audiobook.sh

diff --git a/user/split_audiobook.sh b/user/split_audiobook.sh
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+#!/bin/bash
+# Desc: Split an audio file by chapter
+# Depends: ffmpeg, jq
+# Ref/Attrib: [1] Hasan Arous. MIT license. https://unix.stackexchange.com/a/612124
+#             [2] John Smith. https://unix.stackexchange.com/a/712600
+
+in="$1";
+out="$2";
+splits="";
+n=0;
+while read start end title; do
+    newTitle="$(echo "$title" | sed "s/ /_/g")";
+    newTitle="$(printf "%02d..%s" "$n" "$newTitle")";
+    splits="$splits -c copy -ss $start -to $end $out/$newTitle.m4b";
+    ((n++));
+done <<< $(ffprobe -i "$in" -print_format json -show_chapters \
+  | jq -r '.chapters[] | .start_time + " " + .end_time + " " + (.tags.title | sub(" "; "_"))');
+ffmpeg -i "$in" $splits;
+
+# Author: Steven Baltakatei Sandoval
+# License: GPLv3+