[FFmpeg-devel] [PATCH 1/3] x86/float_dsp: remove len check from ff_butterflies_float_sse

Christophe Gisquet christophe.gisquet at gmail.com
Fri Jan 8 20:32:53 CET 2016


2016-01-08 20:16 GMT+01:00 James Almer <jamrial at gmail.com>:
> Then honestly i don't think it's worth it. Maybe if we could change the
> alignment to 32 bytes and making len multiple of 8 or 16, but not sure
> how feasible is that.

There could be a more specialized version, but of doubtful use (maybe dca2?)

The main customer, aacdec, does use multiple of 4 lengths, and
consequently, unaligned positions.

And I don't mind at all not applying that patch, it was foremostly to
write my first piece of avx code.


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