I have previously used DVBLink as backend. Lately I moved to TVHeadend and it works great except I am experiencing some trouble with DVB subtitle on recordings.
In Finland we use DVB-T for SD and then DVB-T2 for HD content. DVB subtitles work great on SD, but then I have missing subtitles on HD channels.
I contacted Yle regarding subtitiling problems in their channels. They claim that there shouldn't be any problems on stream and subtiles itself.
Then contact explained that there is one technical difference between DVB-T and DVB-T2.
On DVB-T they have been using static pids for subtitles because at the begining quality on receivers were quite poor and those has subtitling issues.
On T2 transmission they have decided to follow specification (dynamic subtitle) and pids/subtitles are only existing on stream when those are been used.
It seems this is causing problems with TVH. It looks like tvh cannot detect changes in transport stream if new DVB subtitile stream is applied during recording.
For my recordings settings I have selected pass profile for the stream and everything should go through.
Is this known issue at all?
Can I override tvh to record DVB subtitile if I dig out pid for it with stream filter?
I added stream filter to use fin subtitles without pid, but it didn't help.