[vdr] [subtitles-plugin] Is it possible to change the PIDS in a recording on the fly?

Petri Helin petri.j.helin at welho.com
Wed Sep 14 18:56:52 CEST 2005

Klaus Schmidinger wrote:

> Petri Helin wrote:
>> Klaus Schmidinger wrote:
>>> Once version 1.4 is released I will certainly implement
>>> subtitle support in the core VDR at some point, and then
>>> you will be able to select subtitle tracks just as you can
>>> with audio tracks now.
>>> Klaus
>> This is nice to hear.
>> Now that you compared subtitling and audio streams I should propably 
>> tell you that they are experimenting with an "audio subtitling" in 
>> Finland which means that there is a possibility to select a 
>> subtitling which is read by a some kind of a synthetisizer. In 
>> set-top boxes this is done so that you select dutch (not that common 
>> language in Finland) from the subtitles menu. In VDR this brings up 
>> dutch as an option in the audio selection menu.
>> This is from syslog:
>> changing pids of channel 1 from 512+128:650=fin:2321 to 
>> 512+128:650=eng,652=dut:2321
>> How do you think this has been done? I mean the difference between 
>> set-top boxes and VDR. Not that important though, just curious about it.
> I'm afraid I don't understand your question.
> From the channel entry they're apparently advertising two audio
> tracks, an English one on PID 650 and a Dutch one on PID 652.
> What else is VDR supposed to do than to bring up these two
> audio tracks?
> Klaus
For what I know is that in set-top boxes the selection is supposed to be 
made from the subtitles menu, not from the audio menu. I don't own a 
set-top box, so I cannot confirm that it really is so. Now that I think 
it again I must remenber incorrectly and it really is an audio stream.
The reason why I brought this up is that I thought that there would be a 
way to use that mechanism which causes the syslog line above to notice 
change in subtiling PIDs.


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