Transcode MKV for VOD over RTSP On-the-fly

[Akujin]

So I've got a pretty nice VLC server setup that creates a Video on demand key for every file using a configuration file.
Startup:

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start vlc --ttl 12 -vvv --color -I telnet --vlm-conf=vlm.conf --extraintf=http --telnet-password PASS --telnet-port 5555 --rtsp-host 0.0.0.0:5554

vlm.conf

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new OP8 vod enabled input "E:\My Videos\Anime\One Piece\001-050\One Piece - 008.avi" new OP334 vod enabled input "E:\My Videos\Anime\One Piece\301-350\One Piece - 334.mp4" output #transcode{vcodec=mp4v,acodec=mpga,fps=23.98,vb=2048,ab=128,width=480,height=270,audio-sync,deinterlace} new OP366 vod enabled input "E:\My Videos\Anime\One Piece\351-366\One Piece - 366.mkv" output #transcode{vcodec=mp4v,acodec=mpga,fps=23.98,vb=2048,ab=128,width=480,height=270,audio-sync,deinterlace} new OP401 vod enabled input "E:\My Videos\Anime\One Piece\401-450\One Piece - 401.mkv"

This setup allows me to play any of the videos from a client:
vlc rtsp://myserver:5554/OP334
to watch One Piece - 334.mp4

To deal with bandwidth any of the videos that is too high quality for my comcast connection I transcode into a smaller frame size.

The problem I have is that the MKV files do not work whether or not I run them through an output transcoder or not. All the other video formats I have in this collection work well.

I'm looking for a way to on-the-fly transcode the soft subtitles into the video as hard subtitles. Any ideas?

Here's the MKV file info:
Video: MPEG4 Video (H264) 1280x720 23.98fps [Japanese (Video 1)]
Audio: AAC 48000Hz stereo [Japanese (Audio 1)]
Subtitle: UTF-8 [English (Subtitle 1)]

[guyverix]

Were you ever able to get the subs working for the transcode? I have the same problem with some of my anime.