[linux-dvb] dvbstream- Transport & Continuity error & Pids

Nico Sabbi Nicola.Sabbi at poste.it
Thu Nov 22 12:37:06 CET 2007


Il Thursday 22 November 2007 12:32:08 Hong Yin Lim ha scritto:
> Hi,
>
> I'm trying to capture 1 whole Transport Stream (TS) from my card.
> These are the output from my dvbstream command:
>
> [root at dvstation dvbstream]# ./dvbstream -f 554000 -s 6875 -qam 256
> -n 30 8192 > test.ts
>
> dvbstream v0.7 - (C) Dave Chapman 2001-2004
>
> However, when I try to play back the file via VLC, I received a lot
> of these messages
> (these are just some of the messages):
>
> ts warning: discontinuity received 0xf instead of 0xd (pid=33)
> ts warning: discontinuity received 0x8 instead of 0x7 (pid=35)
> ts warning: discontinuity received 0x5 instead of 0x2 (pid=34)
>
> ts debug: pid[34] unknown
>
> ts debug: transport_error_indicator set (pid=35)
> ts debug: transport_error_indicator set (pid=34)
>
> It seems that the TS that I capture from the card has a lot of
> Transport & Continuity count error.

bad reception?

>
> Also, when I analyse the Pids through dvbstream, I realise the Pids
> are actually increasing when the Pids for the normal stream is
> fixed! Basically, I run the -analyse command & print the output to
> a file When I checked the number of Pids found, it was about 60+
> 5 seconds later, it increased to about 70+
> and it keeps increasing...

forget it. I never read what -analyse does but surely it's nothing
operational

> However, all this numbers are wrong because I have previously
> confirmed that the TS itself only has 55 Pids!
> Is the dvbstream somehow adding the Pids?
>
> Have anyone experience this problem before?
> Or it there a solution to this.
>
> Thank you very much.
>
> Regards,
> HY

your problem seems to be related to bad reception. Does mplayer
show artefacts or complaints when playing that file?




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