Add chromecast streaming script with subtitle support

.scripts/cast.sh

@@ -0,0 +1,57 @@
+#!/bin/sh
+
+FILE_NAME="$1"
+
+TRACKS="$(mkvmerge -J "$FILE_NAME" | jq -c '
+	.tracks[] |
+	select(.type == "subtitles") |
+	{
+		id:.id,
+		codec_id:.properties.codec_id,
+		language:.properties.language,
+		track_name:.properties.track_name
+	}')"
+
+if [ -n "$2" ]; then
+	SELECTION=$2
+else
+	echo "$TRACKS"
+	echo -n "Choose a subtitle ID: "
+	read -r SELECTION
+fi
+
+if [ -z "$(echo $SELECTION | sed -nr 's/^([0-9]+)$/\1/p')" ]; then
+	echo "Please select a number"
+	exit
+fi
+
+for TRACK in $TRACKS; do
+	TRACK_ID=$(echo $TRACK | sed -nr 's/.*"id":([0-9]+),.*/\1/p')
+	if [ $TRACK_ID != $SELECTION ]; then
+		continue
+	fi
+
+	CODEC_ID="$(echo $TRACK | \
+		sed -nr 's/.*"codec_id":"(S_[A-Z]+\/?[A-Z]*[0-9]*)",.*/\1/p')"
+
+	if [ "$CODEC_ID" = "S_TEXT/UTF8" ]; then
+		EXT="srt"
+	elif [ "$CODEC_ID" = "S_TEXT/ASS" ]; then
+		EXT="ssa"
+	elif [ "$CODEC_ID" = "S_TEXT/USF" ]; then
+		EXT="usf"
+	elif [ "$CODEC_ID" = "S_VOBSUB" ]; then
+		EXT="sub"
+	elif [ "$CODEC_ID" = "S_HDMV/PGS" ]; then
+		EXT="sup"
+	fi
+
+	echo "Extracting subtitle.."
+	mkvextract tracks "$FILE_NAME" $TRACK_ID:/tmp/sub."$EXT" 2>&1 >/dev/null
+
+	echo "Converting subtitle.."
+	ffmpeg -y -i /tmp/sub."$EXT" /tmp/sub.vtt 2>/dev/null
+
+	echo "Playing file.."
+	castnow "$FILE_NAME" --subtitles /tmp/sub.vtt --subtitle-scale 1.2 --subtitle-color FFFFFFFF
+done