[linux-dvb] How to record whole TS?

kurt xue kurtxue at gmail.com
Wed Jul 30 09:07:34 CEST 2008


Hi Vijet,

Some PSI tables locate in special PIDs, pls refer to 13818-1; and you also
can analyze PMT first to get information about whatever PIDs carrying the
table you want to record. Hope that can answer your question :)

Best regards,
Kurt

2008/7/30 vijet m <coolvijet at gmail.com>

> Hi,
>
> Sorry to interrupt your discussion but I have a question regarding
> recording of MPEG2 streams.
> As Kurt said, if you set pesfilter with output as DMX_OUT_TS_TAP and pass
> the pid, it will record the streams corresponding
> to that pid. So, if I pass audio and video pid, then it will record only
> the audio and video streams.
> I wanted to know how to record the DVB SI/PSI tables corresponding to the
> streams I'm recording.
> Do I have to pass the pids of the tables I want to record or is there some
> other way?
> Right now, I'm using the pid value 0x2000 for setting pes filter which is
> proving to be computationally intensive and consuming lot of CPU.
> Please help.
>
> Thanks in advance,
>        Vijet M
>
> On Tue, Jul 29, 2008 at 9:39 PM, Frederic CAND <frederic.cand at anevia.com>wrote:
>
>> Marcel Siegert a écrit :
>> > hiho,
>> >
>> > Frederic CAND schrieb:
>> >> kurt xue a écrit :
>> >>> Hi CAND,
>> >>>
>> >>> Thanks for your reply, you are right. When I set pid 0x2000, the
>> >>> demux gives whole stream. You are so good, maybe this should be
>> >>> mentioned in the api doc :). Thanks!
>> >>>
>> >>
>> >> I guess that should be the case (for the doc).
>> >> However, take care : handling a full MPTS takes much more CPU than
>> >> just some PIDs ...
>> >> RegardS.
>> >
>> >
>> > that depends on the device you're using for recording, doesn't it? :)
>> >
>> > regards marcel
>> >
>>
>> My idea was, handling 3 Mbps containing one Video PID + one Audio PID +
>> some SI/PSI Tables seems to me cost-effective compared to handling
>> 40Mbps of a DVB Stream (that's what was my example ... DVB-S Streams...)
>>
>> --
>> CAND Frederic
>> Product Manager
>> ANEVIA
>>
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>
>
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