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msg00097
2008 Feb 12
2
CRC calculation performance
...rc/framing.c is using a
simple, clean table lookup form.
The following gives some idea of the performance improvements available
on the old slows, but over large buffers, unlike the maximum 256 bytes
of OGG format (if I'm understanding that correctly).
http://gcc.gnu.org/ml/gcc-patches/2002-04/msg01097.html
Since as I read it you're using the standard Ethernet polynomial used by
zlib (& info-zip), it should be possible to have zlib provide an
interface for access to the lookup arrays, or to directly calculate the
OGG CRC, so that the ugliness is constrained. I note that the zlib crc32
fu...