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--- vobsubs [2017/08/05 18:08] – beandog
+++ vobsubs [2017/08/05 18:14] (current) – beandog
@@ Line 3: / Line 3: @@
 VobSubs are subtitles on DVDs, which are pictures overlaid on the video image.
-Extract VOBSUBs using ''mencoder''. Will create ''subtitles.idx'' and ''subtitles.sub''.
+Extract VOBSUBs using ''mencoder''. Will create ''dvd.idx'' and ''dvd.sub''.
 <code>
-mencoder dvd://1 -ovc copy -oac copy -vobsubout subtitles -vobsuboutindex 0 -sid 0 -o /dev/null
+mencoder dvd://1 -ovc copy -oac copy -vobsubout dvd -vobsuboutindex 0 -sid 0 -o /dev/null
+</code>
+Merge them all into a Matroska file:
+<code>
+mkvmerge -o dvd.mkv dvd.mp4 dvd.idx dvd.sub
+</code>
+=== Detecting VobSubs ===
+Note that ''ffmpeg'' and ''libav'' v 0.8.* will see the vobsubs (Stream #0.0) and closed captioning (part of MPEG2 video in Stream #0.1) with ''ffprobe'' or ''avprobe'', but any other higher version of ''avprobe'' (libav) will not.
+<code>
+$ ffprobe dvd_track_02.vob
+</code>
+<code>
+ffprobe version 3.3.3 Copyright (c) 2007-2017 the FFmpeg developers
+  built with gcc 4.9.4 (Gentoo 4.9.4 p1.0, pie-0.6.4)
+  configuration: --prefix=/usr/local/ffmpeg
+  libavutil      55. 58.100 / 55. 58.100
+  libavcodec     57. 89.100 / 57. 89.100
+  libavformat    57. 71.100 / 57. 71.100
+  libavdevice    57.  6.100 / 57.  6.100
+  libavfilter     6. 82.100 /  6. 82.100
+  libswscale      4.  6.100 /  4.  6.100
+  libswresample   2.  7.100 /  2.  7.100
+Input #0, mpeg, from 'dvd_track_02.vob':
+  Duration: 00:06:29.73, start: 441.272633, bitrate: 5630 kb/s
+    Stream #0:0[0x1bf]: Data: dvd_nav_packet
+    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, smpte170m, bottom first), 720x480 [SAR 8:9 DAR 4:3], Closed Captions, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
+    Stream #0:2[0x80]: Audio: ac3, 48000 Hz, mono, fltp, 192 kb/s
 </code>

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