From 9ba5eec6313c30b4ebf4b2f8d8d8bcab09fa838a Mon Sep 17 00:00:00 2001
From: Markus Birth <mbirth@gmail.com>
Date: Wed, 1 Jun 2016 19:21:19 +0200
Subject: [PATCH] Subtitle support for plexoptimize.

---
 plexoptimize.sh | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/plexoptimize.sh b/plexoptimize.sh
index 6913ff8..cc0f299 100755
--- a/plexoptimize.sh
+++ b/plexoptimize.sh
@@ -1,2 +1,13 @@
-#!/bin/sh
-ffmpeg -i "$1" -c:v h264 -c:a libvo_aacenc -preset fast -movflags +faststart -crf 18 -b:a 192k -ac 2 "$1.mp4"
+#!/bin/bash
+if [ -z "$1" ]; then
+    echo "Syntax: $0 VIDEOFILE [SUBTITLEFILE]"
+    exit 1
+fi
+SUBPARAMS=( )
+if [ -n "$2" ]; then
+    # http://stackoverflow.com/questions/8672809/use-ffmpeg-to-add-text-subtitles
+    SUBPARAMS=( -f srt -i "$2" -map 0:0 -map 0:1 -map 1:0 -c:s mov_text )    # mp4
+#    SUBPARAMS=( -f srt -i "$2" -map 0:0 -map 0:1 -map 1:0 -c:s srt )    # mkv
+fi
+# For source mpeg4: -bsf:v mpeg4_unpack_bframes
+ffmpeg -i "$1" "${SUBPARAMS[@]}" -c:v h264 -c:a libvo_aacenc -preset fast -movflags +faststart -crf 18 -b:a 192k -ac 2 "$1.mp4"