[vdr] PMT in multiple TS packet bug

Oliver Endriss o.endriss at gmx.de
Tue Jan 20 22:18:49 CET 2009


Klaus Schmidinger wrote:
> On 20.01.2009 16:01, Frank Schmirler wrote:
> > On Tue, 20 Jan 2009 14:43:22 +0100, Alexw wrote
> >> I have attached a raw TS capture (~10M) containing the PMT pid 132 
> >> which is revealing the problem.
> > 
> > Hum - PID 132 is a french dolby track, not a PMT PID...
> 
> VDR uses the (fixed) "pseudo" PMT pid 0x0084, which is 132.
> This was taken from some patch that implemented PAT/PMT handling
> (don't remember which one it was, maybe it was even the code from
> reel multimedia - not sure if I've missed mentioning that in the
> CONTRIBUTORS file).
> 
> Anyway, I was already wondering if simply using some fixed PMT
> pid was such a good idea. What if some other stream uses exactly
> that pid? Apparently this is the case in this example.
> 
> So I guess it will be necessary to first collect all pids and then
> check whether the default pseudo PMT pid is still free, and if
> not, incresase it until a free one is found...

Hm - why don't you use the PID of the original PMT?

CU
Oliver

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