[linux-dvb] TS tables doubts

[Nico <sabbi@cs.unibo.it>]

Hi,

as far as I understand, in order to find what channels are
transmitted on a given full TS I have to follow these steps:

1) read the PAT to find the list of programs ids
2) read the PMT to find the list of ES streams (audio/video/teletext/subs)
associated to a given program id

Is it correct?

Now I wonder
3) what's the use of NIT and SDT?
4) reading VLC's demuxer it seems that there's a tables describing the
type of each elementary stream (e.g. video is M2V, audio is MP2 or AC3
2.0 or AC3 5.1); what table is this?


Thanks very much,
			Nico




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