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crc?

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This commit is contained in:
KubaPro010
2025-12-28 22:48:49 +01:00
parent cd7dbff03b
commit 51645c9798
7 changed files with 47 additions and 13 deletions
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7
scripts/0-rds2_oda.lua
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@@ -44,6 +44,7 @@ function rds2_group(stream)
local oda = _RDS2_ODAs[_RDS2_ODA_pointer]
local channel_offset = 16 * ((not oda.file_related) and 1 or 0)
local channel = ((_RDS2_ODA_pointer - 1 + channel_offset) & 0x3F)
if oda.file_related then channel = channel & 0xF end
_RDS2_ODA_pointer = _RDS2_ODA_pointer + 1
@@ -78,9 +79,11 @@ function rds2_group(stream)
local channel_bitshift = 8
local fid = (a & 0xC000) >> 14
local fn_msb = (a >> 13) & 1
if fid == 0 and fn_msb == 0 then return true, 0, b, c, d
elseif fid == 0 and fn_msb == 1 then channel = channel & 0xF
if fid == 0 and fn_msb == 0 then
warn("RDS2 ODA is tunneling (A or B) over C")
return true, 0, b, c, d -- Tunnel, not sure why but sure
--FID = 1 means a normal ODA group
--FID = 2 means a RFT file
elseif fid == 2 and fn_msb == 0 then channel_bitshift = 0 end -- This is AID
return generated, (channel << channel_bitshift) | a, b, c, d
end