ST 2109 S-ADM Payload Length 2 bytes short in ST 2110-41

[knneth]

The ST 2109 S-ADM Payload Value has a fixed header of 2 bytes (version, format) before the S-ADM XML metadata, but these 2 bytes don't appear to be included in the ST 2109 S-ADM Payload Length field.

The S-ADM Payload Length field is BER encoded in GetSadmST2127Header():

pmd_tool/dlb_st2110/1.0/dlb_st2110/src/dlb_st2110_transmitter.cpp

Line 869 in ec7d25d

unsigned int berLengthSize = BERLengthEncode(payloadLength, &buff[6]);

... where payloadLength is assumed to equal the compressed size max_payload_size as set in get_sadm_payload() without the 2-byte header, but I have not verified that.

Potential fix:

unsigned int berLengthSize = BERLengthEncode(2 + payloadLength, &buff[6]);