[vlc] DVB-T tuning problem

Sébastien PAUSET sebastien.pauset at int-evry.fr
Sun Feb 25 20:10:26 CET 2007 

Hi all,


I'm running a project aiming at broadcasting TV channels over the 
student network of the INT (Evry, France) thanks to VLC.
I'm using Hauppauge Nova-T 500 cards, a Pentium 4 based computer and 
debian testing OS.
kernel version is 2.6.19-2 and I'm using integrated drivers 
(dvb-usb-dib0700/mt2060)


I'm using vlm interface with the following config file:

    new TF1 broadcast enabled
    setup TF1 input dvb://
    setup TF1 option programs=1537
    setup TF1 option dvb-frequency=562000000
    setup TF1 option dvb-adapter=0
    setup TF1 option dvb-bandwidth=8
    setup TF1 output
    #standard{mux=ts,access=udp,dst=239.255.40.1,sap,name="TF1",group="MiNET
    TV"}

    new France2 broadcast enabled
    setup France2 input dvb://
    setup France2 option dvb-adapter=1
    setup France2 option programs=257
    setup France2 option dvb-bandwidth=8
    setup France2 option dvb-frequency=586000000
    setup France2 output
    #standard{mux=ts,access=udp,dst=239.255.40.2,sap,name="France
    2",group="MiNET TV"}

    new France3 broadcast enabled
    setup France3 input dvb://
    setup France3 option programs=220
    setup France3 option dvb-frequency=586000000
    setup France2 option dvb-bandwidth=8
    setup France3 option dvb-adapter=2
    setup France3 output
    #standard{mux=ts,access=rtp,dst=239.255.40.3,sap,name="France
    3",group="MiNET TV"}

    new itele broadcast enabled
    setup itele input dvb://
    setup itele option programs=516
    setup itele option dvb-frequency=474000000
    setup itele option dvb-adapter=3
    setup itele option dvb-bandwidth=8
    setup itele output
    #standard{mux=ts,access=rtp,dst=239.255.40.4,sap,name="itele",group="MiNET
    TV"}

    new France5 broadcast enabled
    setup France5 input dvb://
    setup France5 option programs=260
    setup France5 option dvb-frequency=586000000
    setup France5 option dvb-adapter=4
    setup France5 option dvb-bandwidth=8
    setup France5 output
    #standard{mux=ts,access=rtp,dst=239.255.40.5,sap,name="France5",group="MiNET
    TV"}

    new M6 broadcast enabled
    setup M6 input dvb://
    setup M6 option programs=1025
    setup M6 option dvb-frequency=498000000
    setup M6 option dvb-adapter=5
    setup M6 option dvb-bandwidth=8
    setup M6 option dvb-voltage=45
    setup M6 output
    #standard{mux=ts,access=rtp,dst=239.255.40.6,sap,name="M6",group="MiNET
    TV"}

    new Europe2TV broadcast enabled
    setup Europe2TV input dvb://
    setup Europe2TV option programs=517
    setup Europe2TV option dvb-frequency=474000000
    setup Europe2TV option dvb-adapter=6
    setup Europe2TV option dvb-bandwidth=8
    setup Europe2TV output
    #standard{mux=ts,access=rtp,dst=239.255.40.7,sap,name="Europe2
    TV",group="MiNET TV"}

    new W9 broadcast enabled
    setup W9 input dvb://
    setup W9 option programs=1026
    setup W9 option dvb-frequency=498000000
    setup W9 option dvb-adapter=7
    setup W9 option dvb-bandwidth=8
    setup W9 output
    #standard{mux=ts,access=rtp,dst=239.255.40.8,sap,name="W9",group="MiNET
    TV"}

    new TMC broadcast enabled
    setup TMC input dvb://
    setup TMC option programs=514
    setup TMC option dvb-frequency=474000000
    setup TMC option dvb-adapter=8
    setup TMC option dvb-bandwidth=8
    setup TMC mux mp2t
    setup TMC output
    #standard{mux=ts,access=rtp,dst=239.255.40.9,sap,name="TMC",group="MiNET
    TV"}

    new LCP broadcast enabled
    setup LCP input dvb://
    setup LCP option programs=630
    setup LCP option dvb-frequency=586000000
    setup LCP option dvb-adapter=9
    setup LCP option dvb-bandwidth=8
    setup LCP mux mp2t
    setup LCP output
    #standard{mux=ts,access=rtp,dst=239.255.40.10,sap,name="LCP",group="MiNET
    TV"}


    control TF1 play
    control France2 play
    control France3 play
    control itele play
    control France5 play
    control M6 play
    control Europe2TV play
    control W9 play
    control TMC play
    control LCP play


Here is my dvbscan result:

    Direct
    8:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:160:80:513
    [02ff]:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:767
    Gulli:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:165:100:518
    Europe 2
    TV:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:164:96:517
    i>TELE:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:163:92:516
    BFM
    TV:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:162:88:515
    TMC:474000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:161:84:514
    [04ff]:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:1279
    M6:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:120:130:1025
    W9:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:220:230:1026
    NT1:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:320:330:1027
    PARIS
    PREMIERE:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:430:1028
    TF6:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:530:1029
    AB1:498000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:630:1030
    CANAL+:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:80:769
    [03f1]:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:1009
    [03f0]:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:0:1008
    CANAL
    J:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:96:773
    PLANETE:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:92:772
    CANAL+
    SPORT:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:88:771
    CANAL+
    CINEMA:522000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:84:770
    TF1:562000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:120:130:1537
    NRJ12:562000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:220:230:1538
    LCI:562000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:330:1539
    Eurosport
    France:562000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:430:1540
    TPS
    STAR:562000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_32:HIERARCHY_NONE:0:530:1541
    France
    2:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:120:130:257
    France
    4:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:420:430:259
    France
    5:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:320:330:260
    ARTE:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:520:530:261
    LCP:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:620:630:262
    France
    3:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:220:230:273
    [01ff]:586000000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_3_4:FEC_AUTO:QAM_64:TRANSMISSION_MODE_8K:GUARD_INTERVAL_1_8:HIERARCHY_NONE:0:0:511

The problem is that none of the channels France2, France3, France5, or 
LCP work. They are all over the same multiplexed dvb-t channel.
I have the folloing error messages:

    [00000368] [Média: LCP] dvb access warning: no lock, tuning again
    [00000342] [Média: France2] dvb access warning: no lock, tuning again
    [00000358] [Média: France5] dvb access warning: no lock, tuning again
    [00000350] [Média: France3] dvb access warning: no lock, tuning again

I made the following tests:
- I plugged a laptop with an Avermedia cardbus dvb-t card running over 
Windows and these channels work fine.
- I tried the linuxdvb tzap program and here is the result :

    using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
    tuning to 586000000 Hz
    video pid 0x0078, audio pid 0x0082
    status 03 | signal 853b | snr 0000 | ber 001fffff | unc 00000000 |
    status 1f | signal 853f | snr 0000 | ber 00000000 | unc 000008bc |
    FE_HAS_LOCK
    status 1f | signal 853f | snr 0000 | ber 00000000 | unc 00000000 |
    FE_HAS_LOCK

If I am correctly interpreting the output of tzap, it means that it can 
lock on the signal.

So I suspect VLC to be the cause of the problem.

Sorry for this long message.
I'm not sure i'm posting on the right list, don't hesitate to redirect me.

I hope som of you could have an idea ;)
Don't hesitate to ask me if you need any more information.

best regards,
Sébastien PAUSET

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