View subtitles without video in DVB transport stream

[djc]

I'm using dvblast to stream from a USB DVB-S receiver. I have a use case where I only need to be able to view the subtitles for each channel in the multiplex. Therefore I'm filtering out the non-subtitle PIDs so that I can stream multiple subtitle streams without using much bandwidth.

However, VLC then won't let me view the subtitles, despite being able to connect to the stream and see the subtitle PIDs.

Screenshot of subtitle streams (DVB and also Teletext) when not filtering any PIDs: http://i.imgur.com/88PkcZb.png

Screenshot after filtering out non-subtitle PIDs: http://i.imgur.com/58EJ1X7.png

However VLC can see them: http://i.imgur.com/1y4TnNA.png

The dvblast command used: dvblast --adapter 0 --frequency 10818000 --symbol-rate 22000000 --voltage 13 --dvb-compliance --epg-passthrough --config-file dvblast.cfg

The dvblast config file:
239.255.1.2:5004 0 10353 5202,5203
(10353 is the SID, 5202,5203 are the Teletext and DVB subtitles streams).

VLC is tuned to rtp://239.255.1.2:5004 with default options :network-caching=1000

I'm wondering if there's an easy way to make this work.

Thanks.

Version: Ubuntu 15.04 VLC media player 2.2.0 Weatherwax (revision 2.2.0-0-g1349ef2)

[Ludrax]

viewtopic.php?f=7&t=86174