Some Gst.Structures contain members which are arrays/lists of other structures, for example the dvbsrc element posts messages about the DVB SI, including a "nit" message with a "transports" member which contains a list/array of other structures. With the old (0.10) python bindings I could read this member by using struct["transports"] and iterate over the python list it returned. But in gi there is no get_* method for a list/array. I tried get_value() but it causes an exception:

TypeError: unknown type GstValueList

I'm also thinking, wouldn't I have the same problem in C?

Gst.Structure.foreach() seems not to be working too. If I call it on the entire nit structure with a function that does print("  %s: %s" % (name, value)), it prints, for example:

  2168: 12340
  2165: 17
  2169: 1
  2170: True
  2171: South
  2166: ['@\x05South', '\x7f%\nGBRengGEngland\x01\x85South\x01\x0f\x8aSouth East\x01\x17', '\x7f\n\tGBR\xfa\x01\x0f\xfa\x01\x17', 'J\x0c\x10C#:\x11@\t\x04\x00\x01Z\x00', 'J\x0c\x10L#:\x11@\t\x04\x00\x01Z\x00', 'J\x0c@\x83#:D@\t\x04\x00\x01Z\x00', '\x7f\x9b\x08\xffengNetwork change notification; enhanced network configuration; Version 2.0      Network change notification; enhanced network configuration; Version 2.0']

But if I print the output of the same structure's to_string() method it's completely different:

 nit, network-id=(uint)12340, version-number=(uint)17, current-next-indicator=(uint)1, actual-network=(boolean)true, network-name=(string)South, descriptors=(GValueArray)NULL, transports=(structure){ "transport-4163\,\ transport-stream-id\=\(uint\)4163\,\ original-network-id\=\(uint\)9018\,\ delivery\=\(structure\)\"terrestrial\\\,\\\ frequency\\\=\\\(uint\\\)498000000\\\,\\\ bandwidth\\\=\\\(uint\\\)8\\\,\\\ constellation\\\=\\\(string\\\)QAM64\\\,\\\ hierarchy\\\=\\\(uint\\\)0\\\,\\\ code-rate-hp\\\=\\\(string\\\)2/3\\\,\\\ code-rate-lp\\\=\\\(string\\\)1/2\\\,\\\ guard-interval\\\=\\\(uint\\\)32\\\,\\\ transmission-mode\\\=\\\(string\\\)8k\\\,\\\ other-frequency\\\=\\\(boolean\\\)true\\\;\"\,\ channels\=\(structure\)\{\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4163\\\,\\\ logical-channel-number\\\=\\\(uint\\\)1\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4288\\\,\\\ logical-channel-number\\\=\\\(uint\\\)7\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4672\\\,\\\ logical-channel-number\\\=\\\(uint\\\)71\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6848\\\,\\\ logical-channel-number\\\=\\\(uint\\\)703\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5760\\\,\\\ logical-channel-number\\\=\\\(uint\\\)707\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4416\\\,\\\ logical-channel-number\\\=\\\(uint\\\)105\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4544\\\,\\\ logical-channel-number\\\=\\\(uint\\\)9\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4736\\\,\\\ logical-channel-number\\\=\\\(uint\\\)81\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5632\\\,\\\ logical-channel-number\\\=\\\(uint\\\)705\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5888\\\,\\\ logical-channel-number\\\=\\\(uint\\\)701\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)7168\\\,\\\ logical-channel-number\\\=\\\(uint\\\)301\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5952\\\,\\\ logical-channel-number\\\=\\\(uint\\\)709\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4287\\\,\\\ logical-channel-number\\\=\\\(uint\\\)2\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4608\\\,\\\ logical-channel-number\\\=\\\(uint\\\)70\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6016\\\,\\\ logical-channel-number\\\=\\\(uint\\\)710\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6784\\\,\\\ logical-channel-number\\\=\\\(uint\\\)702\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)7232\\\,\\\ logical-channel-number\\\=\\\(uint\\\)302\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5696\\\,\\\ logical-channel-number\\\=\\\(uint\\\)706\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4352\\\,\\\ logical-channel-number\\\=\\\(uint\\\)80\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6912\\\,\\\ logical-channel-number\\\=\\\(uint\\\)704\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5824\\\,\\\ logical-channel-number\\\=\\\(uint\\\)708\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6720\\\,\\\ logical-channel-number\\\=\\\(uint\\\)700\\\;\"\ \}\,\ descriptors\=\(GValueArray\)NULL\;", "transport-4172\,\ transport-stream-id\=\(uint\)4172\,\ original-network-id\=\(uint\)9018\,\ delivery\=\(structure\)\"terrestrial\\\,\\\ frequency\\\=\\\(uint\\\)674000000\\\,\\\ bandwidth\\\=\\\(uint\\\)8\\\,\\\ constellation\\\=\\\(string\\\)QAM64\\\,\\\ hierarchy\\\=\\\(uint\\\)0\\\,\\\ code-rate-hp\\\=\\\(string\\\)2/3\\\,\\\ code-rate-lp\\\=\\\(string\\\)1/2\\\,\\\ guard-interval\\\=\\\(uint\\\)32\\\,\\\ transmission-mode\\\=\\\(string\\\)8k\\\,\\\ other-frequency\\\=\\\(boolean\\\)true\\\;\"\,\ channels\=\(structure\)\{\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4172\\\,\\\ logical-channel-number\\\=\\\(uint\\\)1\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4288\\\,\\\ logical-channel-number\\\=\\\(uint\\\)7\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4672\\\,\\\ logical-channel-number\\\=\\\(uint\\\)71\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6848\\\,\\\ logical-channel-number\\\=\\\(uint\\\)703\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5760\\\,\\\ logical-channel-number\\\=\\\(uint\\\)707\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4416\\\,\\\ logical-channel-number\\\=\\\(uint\\\)105\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4544\\\,\\\ logical-channel-number\\\=\\\(uint\\\)9\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4736\\\,\\\ logical-channel-number\\\=\\\(uint\\\)81\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5632\\\,\\\ logical-channel-number\\\=\\\(uint\\\)705\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5888\\\,\\\ logical-channel-number\\\=\\\(uint\\\)701\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)7168\\\,\\\ logical-channel-number\\\=\\\(uint\\\)301\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5952\\\,\\\ logical-channel-number\\\=\\\(uint\\\)709\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4287\\\,\\\ logical-channel-number\\\=\\\(uint\\\)2\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4608\\\,\\\ logical-channel-number\\\=\\\(uint\\\)70\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6016\\\,\\\ logical-channel-number\\\=\\\(uint\\\)710\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6784\\\,\\\ logical-channel-number\\\=\\\(uint\\\)702\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)7232\\\,\\\ logical-channel-number\\\=\\\(uint\\\)302\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5696\\\,\\\ logical-channel-number\\\=\\\(uint\\\)706\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)4352\\\,\\\ logical-channel-number\\\=\\\(uint\\\)80\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6912\\\,\\\ logical-channel-number\\\=\\\(uint\\\)704\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)5824\\\,\\\ logical-channel-number\\\=\\\(uint\\\)708\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)6720\\\,\\\ logical-channel-number\\\=\\\(uint\\\)700\\\;\"\ \}\,\ descriptors\=\(GValueArray\)NULL\;", "transport-8206\,\ transport-stream-id\=\(uint\)8206\,\ original-network-id\=\(uint\)9018\,\ delivery\=\(structure\)\"terrestrial\\\,\\\ frequency\\\=\\\(uint\\\)522000000\\\,\\\ bandwidth\\\=\\\(uint\\\)8\\\,\\\ constellation\\\=\\\(string\\\)QAM64\\\,\\\ hierarchy\\\=\\\(uint\\\)0\\\,\\\ code-rate-hp\\\=\\\(string\\\)2/3\\\,\\\ code-rate-lp\\\=\\\(string\\\)1/2\\\,\\\ guard-interval\\\=\\\(uint\\\)32\\\,\\\ transmission-mode\\\=\\\(string\\\)8k\\\,\\\ other-frequency\\\=\\\(boolean\\\)true\\\;\"\,\ channels\=\(structure\)\{\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8577\\\,\\\ logical-channel-number\\\=\\\(uint\\\)103\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8270\\\,\\\ logical-channel-number\\\=\\\(uint\\\)3\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8370\\\,\\\ logical-channel-number\\\=\\\(uint\\\)33\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8452\\\,\\\ logical-channel-number\\\=\\\(uint\\\)13\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8500\\\,\\\ logical-channel-number\\\=\\\(uint\\\)5\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8325\\\,\\\ logical-channel-number\\\=\\\(uint\\\)6\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8634\\\,\\\ logical-channel-number\\\=\\\(uint\\\)102\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8442\\\,\\\ logical-channel-number\\\=\\\(uint\\\)14\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8384\\\,\\\ logical-channel-number\\\=\\\(uint\\\)4\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)8448\\\,\\\ logical-channel-number\\\=\\\(uint\\\)28\\\;\"\ \}\,\ descriptors\=\(GValueArray\)NULL\;", "transport-16515\,\ transport-stream-id\=\(uint\)16515\,\ original-network-id\=\(uint\)9018\,\ channels\=\(structure\)\{\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)17603\\\,\\\ logical-channel-number\\\=\\\(uint\\\)51\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)20288\\\,\\\ logical-channel-number\\\=\\\(uint\\\)117\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)17472\\\,\\\ logical-channel-number\\\=\\\(uint\\\)54\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)17540\\\,\\\ logical-channel-number\\\=\\\(uint\\\)50\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)19648\\\,\\\ logical-channel-number\\\=\\\(uint\\\)304\\\;\"\,\ \"channels\\\,\\\ service-id\\\=\\\(uint\\\)17664\\\,\\\ logical-channel-number\\\=\\\(uint\\\)52\\\;\"\ \}\,\ descriptors\=\(GValueArray\)NULL\;" };