Hallo,
I plan to write DVB/IP gateway and I have question
related to meaning of the section_length field
within DSMCC section.
Based on specs, it is defined as
follows:
dsmcc_section_length
-- This 12 bit field specifies the number of remaining bytes in the DSMCC_section immediately following this field up to the
end of the dsmcc_section. The value in this field
shall not exceed 4093 (indicating a section maximum data length of 4084 bytes,
following the last_section_number field and up to
the CRC_32/checksum field).
There is also one “example”
saying
…
else if (table_id == 0x3E) {
for (i=0;i<dsmcc_section_length-9;i++)
{
private_data_byte
}
.
I have grabbed some TS packets, please see attached
word document. Based on this data, third packet within data, section_length = 0x463 = 1134. Data are included in the
6x188 TS packets. This makes 6x188 = 1128 bytes. I am not able to find relation between
those numbers and specs.
Could you, please, someone explain?
How is it with CRC, where is it within those
packets?
Thank you in advance.
Regards, Daniel