I've just started to use this to recover EIT information from the
transmitted stream (UK, freeview).
I've managed to get the tables OK, but the EIT name / description for
all HD channels is scrambled. Some research indicates these are huffman
encoded for an unclear reason.
Given the right tables, it should be possible therefore to decode them
when they appear in the linked list of descriptors in each event.
However, it appears that dvb_parse_string() called all the way down from
dvb_read_sections() converts the character sets name / description
strings so that they can no longer be decoded. If huffman encoded, I
think the first character of each is a 0x1f, followed by a 0x01 or 0x02
which probably indicates the table to use.
It seems to me therefore that the 0x1f needs to be picked up in the
switch (*src) {} at line 395 in parse_string.c, and huffman decode done
there. After the return from dvb_parse_string(), and certainly when they
appear in the EIT table, it's too late.
I am not sure if I'm right about all this as I know very little about
DVB. However it looks like that to me. Have I got this right or is
already successfully handled somewhere I haven't realised?
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