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Joined: Mon Oct 22, 2007 1:43 pm
Posts: 9

Post Posted: Fri Sep 26, 2008 1:31 pm 
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Hi again,

I've a question concerning the number of bytes used for the length in a KLV triplet.

I've been dissecting AVID OP-atom files and noticed that the length field in these files seems to be a fixed 9 bytes:

0x88.xx.xx.xx.xx.xx.xx.xx.xx

when creating a new file using mxflib, the default number of bytes seems to be 4, unless the length of the value exceeds 16777216 bytes:

0x83.xx.xx.xx

Is there a way (parameter/feature/function) to change this default number of bytes to 9 bytes when creating a new MXFfile?

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Joined: Thu Apr 15, 2004 10:39 am
Posts: 198
Location: Scotland

Post Posted: Fri Oct 03, 2008 9:53 am 
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Probably the easiest way to make this non-standard behaviour is to modify the MakeBER() function in helper.h to always write 9-byte BER lengths. You could turn this into a user-defined feature if you want.

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