[Mp4-tech] CRC32 of a TS packet

Thiago Henrique thiago_hr yahoo.com.br
Tue May 15 01:55:54 EDT 2007


I have to write a program to calculate the CRC32 of Transport Stream packets but I had no success yet.
For example:
This is a sample PAT from a working TS:
47 60 00 10 00 00 B0 0D 00 00 C1 00 00 00 01 E1 E0 76 F1 A4 CE
Where (76 F1 A4 CE) is the CRC32
I am trying to calculate using these bytes
00 B0 0D 00 00 C1 00 00 00 01 E1 E0
And I get 5D 67 ED 81
Does anyone know how to calculate the correct CRC32? Which bytes to use?
Is it the same CRC32 of PKZIP ?
Thanks
Thiago
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