Getting huge amount of [X-PAD len] in Terminal

[dutchievj]

Using welle.io_1.0_Linux_x86_64.AppImage and before that welle.io_1.0-rc2_Linux_x86_64.AppImage on Ubuntu 16.04 with RTL_TCP.

On some dab+ channels I get a constant slow flow of [X-PAD len] and then another [X-PAD len] and another etc.

But on some other DAB+ channels I don't get them at all.

What does [X-PAD len] mean?

[basicmaster]

This means that the respective station sends its Dynamic Label and/or Slideshow violating the DAB specs (and wasting bandwidth) - which in this case actually requires to ignore that data. Here it is processed nevertheless and this message is an indicator for that.

Can you tell me on which multiplexes/stations this happens?

[mpbraendli]

I observe the same on radio TOP TWO+, in the SMC_D02 ensemble on 7D in Zürich.
MSC recording here: http://www.mpb.li/pub/toptwo.msc

[dutchievj]

@basicmaster

It seems that all Dutch public (NPO) channels tricker this flood.

RadioController: Name of ensemble: "NPO "
RadioController: Found station "NPO Radio 4 " ( 8204 )
RadioController: Found station "NPO FunX " ( 8209 )
RadioController: Found station "NPO 3FM Alterna." ( 8210 )
RadioController: Found station "NPO Soul & Jazz " ( 8206 )
RadioController: Found station "NPO Radio 5 " ( 8205 )
RadioController: Found station "NPO SterrenNL " ( 8212 )
RadioController: Found station "NPO 3FM " ( 8203 )
RadioController: Found station "NPO Radio 2 " ( 8202 )
RadioController: Found station "NPO Radio 1 " ( 8201 )
RadioController: Found station "NPO 3FM KX Radio" ( 8214 )
RadioController: Found station "NPO Radio 4 Con." ( 8215 )
RadioController: Found station "NPO FunX Dance " ( 8216 )
RadioController: Found station "NPO FunX Sl.Jamz" ( 8217 )

But the other Dutch non public (government sponsored) channels don't give [X-PAD len] at all.

[basicmaster]

OK, this is interesting. Could you provide a short (5min) ETI dump of the mux? E.g. using dab2eti or eti-cmdline.

[dutchievj]

No idea how to do that. I just have the AppImage and I am using that with an RTL dongle in another system.

[mpbraendli]

I'm afraid I also can't dump an ETI, because I only have my B200 with me.

[basicmaster]

@mpbraendli:
Your MSC dump is already enough.

@dutchievj:
I will contact a dutchman I know to hopefully get the ETI dump, to be able to contact NPO about that.

[AlbrechtL]

Are they any updates?

[basicmaster]

Just yesterday I received the dump of the NPO ensemble and was able to confirm that it is indeed affected.

To no longer "bug" normal users with the mentioned message, I disabled the message in loose mode (that is used by welle.io): Opendigitalradio/dablin@8d50cea

@AlbrechtL:
Note that since a recent change you have to set the used MOT application type using the SetMOTAppType() method, after instantiation as well as after calling Reset(). I'm not sure whether you parse the User Application FIG: If so, you can use the parsed application type here. If not, use the hard coded default value 12, which leads to the same behaviour as before the change.

[AlbrechtL]

Thanks! I will update the X-PAD code soon.

[AlbrechtL]

I updated the X-PAD decoder in 86eb350.

[andimik]

Will the next branch also get this?

[AlbrechtL]

It is in the next branch only.

[andimik]

You are right, sorry.