[dvblast-devel] [biTStream] Issue invalid_sdt_section

[Ludovic BOUÉ]

Le 26/04/2012 09:35, Kristof Meersseman a écrit :
>
> Hello,
>
> I do not really have a reply to your question, but I’m really 
> interested in the solution to print EIT data from a stream.
>
> I have a multicast stream with EIT on PID 18, but when I try “dumprtp 
> 239.0.1.1 49152 | ts_filter 18 | ./dvb_print_si -x xml -T EIT” I get 
> this:
>
> rtptsaudio: NETWORK CONGESTION - expected 3352, received 3357
>
> rtptsaudio: NETWORK CONGESTION - expected 3358, received 10267
>
> rtptsaudio: NETWORK CONGESTION - expected 10268, received 3353
>
> FATAL ERROR IN STREAM AT PACKET 11206
>
> FATAL ERROR IN STREAM AT PACKET 11207
>
> FATAL ERROR IN STREAM AT PACKET 11208
>
> FATAL ERROR IN STREAM AT PACKET 11209
>
> FATAL ERROR IN STREAM AT PACKET 11210
>
> FATAL ERROR IN STREAM AT PACKET 11211
>
> FATAL ERROR IN STREAM AT PACKET 11212
>
> FATAL ERROR IN STREAM AT PACKET 11213
>
> FATAL ERROR IN STREAM AT PACKET 11214
>
> When I just “dumprtp 239.0.1.1 49152”, I can see EPG data passing 
> through… Any ideas what is wrong?
>
> Thank you very much for your answer.
>
> Kristof
>
Hello Kristof,

I'm pretty sure your flow is UDP but not RTP, so it can't work. Here is 
a exemple with an UDP stream:
# dumprtp 239.255.2.1 1234| ts_filter 18| ./dvb_print_si -x xml -T EIT
<?xml version="1.0" encoding="utf-8"?>
<TS>
Filtering pid 18
Rtp dump
FATAL ERROR IN STREAM AT PACKET 1
FATAL ERROR IN STREAM AT PACKET 2
FATAL ERROR IN STREAM AT PACKET 3
FATAL ERROR IN STREAM AT PACKET 4
FATAL ERROR IN STREAM AT PACKET 5
FATAL ERROR IN STREAM AT PACKET 6
rtptsaudio: NETWORK CONGESTION - expected 30752, received 30740
rtptsaudio: NETWORK CONGESTION - expected 30741, received 30746

You can try with dvbsnoop tool:
# dumprtp 239.255.2.4 1234 | ts_filter 17|dvbsnoop -nph 0x12
dvbsnoop V1.4.50 -- http://dvbsnoop.sourceforge.net/
Filtering pid 17
Rtp dump

PID: 18 (0x0012) [= assigned for: DVB Event Information Table (EIT)]

Guess table from table id...
EIT-decoding....
Table_ID: 80 (0x50) [= Event Information Table (EIT) - actual transport 
stream, schedule]
Service_ID: 775 (0x0307) [= --> refers to PMT program_number]
reserved_3: 3 (0x03)
Last_Section_number: 184 (0xb8)
Transport_stream_ID: 3 (0x0003)
Original_network_ID: 8442 (0x20fa) [= >>ERROR: not (yet) defined... 
Report!<<]
Last_table_id: 80 (0x50) [= Event Information Table (EIT) - actual 
transport stream, schedule]

Event_ID: 7206 (0x1c26)
Start_time: 0xdaed060000 [= 2012-04-28 06:00:00 (UTC)]
Duration: 0x0010000 [= 01:00:00 (UTC)]
Running_status: 0 (0x00) [= undefined]
Free_CA_mode: 1 (0x01) [= streams [partially] CA controlled]
Descriptors_loop_length: 62 (0x3e)
...

Regards,
Ludovic