Hi Stevem
> Possible that it's the SSE DCT that's having trouble instead of the
> MMX one? The encoding I just did was on a system that doesn't
> have SSE support (the old MMX vs SSE problem we've discussed in the
> past) and using the current cvs version of the encoder I can't
> reproduce the problem yet. Time to go try a different system.
There is no SSE DCT in mpeg2enc. Its all pure MMX.. thats why it is prone to
overflow issues (its all done with 16 bit ints). There is code to detect
this and lower the quantisation if needed but it looks like something is
slipping through....
Andrew
PS
I intend to write a nice clean float SSE DCT/iDCT using the gcc-3.x vector
intrinsics sometime over the next few months.
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