[FFmpeg-devel] [PATCH 09/13] avcodec/svq1dec: clear MMX state after MB decode loop

Moritz Barsnick barsnick at gmx.net
Wed Oct 26 00:12:53 EEST 2016

On Tue, Oct 25, 2016 at 14:28:38 +0200, u-9iep at aetey.se wrote:
> In a perfect world the user might be offered a build time choice:
> either lose N% of the performance or take the consequences of not
> following the ABI.

That was exactly my thought too, assuming it doesn't pollute the code
even more:
--disable-fast-simd or --enable-compliant-mmx or something. "auto"
would detect musl and/or test for the necessity to use emms_c() or
other measures.


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