[streaming] Streaming whole DVB-T mux with dvblast

[jan markus]

Hello,

thank you, but I am afraid, this won't be the problem. At least I have a default route, 
but no packet gets out even if I try to stream to unicast IP or if I try to set multicast 
route specifically:

   route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0

For the matter of simplicity, I haven't written a lot of information in my previous post. 
I've tried other ways to tell dvblast to stream whole mux out, with config file containing 
the "dummy" pid 8192, and so on. Streaming of single channels works just perfectly, but 
streaming of complete mux... just sux :)

I've even tried USB sniffing to see if the data really gets off the card:

   mount -t debugfs none_debugs /sys/kernel/debug
   modprobe usbmon
   cat /sys/kernel/debug/usb/usbmon/1u

well they do, when the tunner is locked.

So I've picked up different tool (dvbstream), just to see, whether the problem cannot be 
in the driver (or somewhere else - frankly, I haven't read much about how all this stuff 
really works inside). And, as you can see, I had to specify a lot of information about the 
mux, before dvbstream was willing to zap to it. But then, streaming it was.

I just like dvblast more. Seems to be the right and straight tool for the job.

Used to have a PC (before my dog *** into... you wouldn't believe) with Technisat DVB-S 
and -T cards, so I could have done more tests, just to see whether dvblast has issues only 
with -T or this little USB thing. But notebook is the only machine I have left now.

Anyway, thank you very much for your interest and help.
-Jan

On 07/28/2010 11:10 PM, Thomas Kernen wrote:
>
> You are sure you have a route for the multicast traffic to one of your
> interfaces?
>
>
>
> On 7/28/10 11:32 AM, jan markus wrote:
>> Hello,
>>
>> I am trying to stream whole DVB-T mux over IP with dvblast, but without
>> any success. I use following command:
>>
>> ./dvblast -u -d 239.255.0.1:1234 -f 586000000 -m qam_64 -b 8
>>
>> and get this information:
>>
>> DVBlast 1.3.0-svn
>> warning: restarting
>> debug: using linux-dvb API version 5
>> debug: Frontend "DiBcom 7000PC" type "OFDM (DVB-T)" supports:
>> debug: frequency min: 45000000, max: 860000000, stepsize: 62500,
>> tolerance: 0
>> debug: symbolrate min: 0, max: 0, tolerance: 0
>> debug: capabilities:
>> debug: INVERSION_AUTO
>> debug: FEC_1_2
>> debug: FEC_2_3
>> debug: FEC_3_4
>> debug: FEC_5_6
>> debug: FEC_7_8
>> debug: FEC_AUTO
>> debug: QPSK
>> debug: QAM_16
>> debug: QAM_64
>> debug: QAM_AUTO
>> debug: TRANSMISSION_MODE_AUTO
>> debug: GUARD_INTERVAL_AUTO
>> debug: HIERARCHY_AUTO
>> debug: FE_CAN_RECOVER
>> debug: tuning OFDM frontend to f=586000000 bandwidth=8 modulation=qam_64
>> warning: failed opening CAM device /dev/dvb/adapter0/ca0 (No such file
>> or directory)
>> debug: setting filter on PID 8192
>> error: no config file
>> warning: discontinuity for PID 301
>> warning: discontinuity for PID 101
>> warning: discontinuity for PID 501
>> warning: discontinuity for PID 201
>> warning: discontinuity for PID 401
>> libdvbpsi error (PSI decoder): TS discontinuity (received 10, expected
>> 0) for PID 0
>> debug: new PAT ts_id=528 version=2 current_next=1
>> debug: * number=0 pid=16
>> debug: * number=513 pid=100
>> debug: * number=514 pid=400
>> debug: * number=769 pid=200
>> debug: * number=770 pid=500
>> debug: * number=2049 pid=300
>> debug: frontend has acquired signal
>> debug: frontend has acquired carrier
>> debug: frontend has acquired stable FEC
>> debug: frontend has acquired sync
>> debug: frontend has acquired lock
>> debug: - Bit error rate: 0
>> debug: - Signal strength: 28060
>> debug: - SNR: 181
>>
>> But no packet ever leaves my PC.
>>
>> When I try to get the complete mux with dvbstream:
>>
>> dvbstream -i 239.255.0.1 -r 1234 -f 586000000 -qam 64 -gi 4 -I 2 -c 0
>> -tm 8 8192
>>
>> everything works just fine. Anyway, dvbstream needs more informations
>> about mux, otherwise it does not lock. Dvblast have no problems with
>> that.
>>
>> I have 2.6.32 kernel, latest v4l-dvb, dvblast from SVN, USB DVB-T
>> Pinnacle PCTV 73e (DiBcom 7000PC) and anything else you would need to
>> know.
>>
>> Please help :)
>>
>> Thank you very much,
>> -Jan
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