DVB-T TS decoding question.

[erik1958]

I am trying to write a DVB-T TS decoder.

The PAT parses OK.
The PMT shows some weird things.
The least 8 bits of the PID's of the ES's are OK but the upper 4 bits do seem to change per PMT I parse.

So
once I see (PID in hex)

PMT with pid = 20
PCR pid = 1022
ES[ 0] type = 2, ES[ 0] pid = 1022
ES[ 1] type = 4, ES[ 1] pid = 1023

and then I see

PMT with pid = 20
PCR pid = 1a32
ES[ 0] type = 2, ES[ 0] pid = 1a32
ES[ 1] type = 4, ES[ 1] pid = 1a33

And then I see (what it should be)

PMT with pid = 20
PCR pid = 1522
ES[ 0] type = 2, ES[ 0] pid = 1522
ES[ 1] type = 4, ES[ 1] pid = 1523
ES[ 2] type = 129, ES[ 2] pid = 1530

They all have the current bit set so its not the "next" PMT

Any clues?

[Guest34343]

It is legal to specify multiple programs on one PMT PID. Many PAT/PMT parsers do not support that. DGIndex doesn't too, but at least it's on my to-do list.

[Guest34343]

I have rewritten the PAT/PMT parser in DGIndex to correctly handle this kind of situation. If anyone needs the source code before I make a release, feel free to PM me for it.