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Date: Tue, 7 Mar 2023 21:45:27 +0100
From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Message-ID: <20230307204527.GF1928637@pb2>
References: <20230307090806.2003-1-zhujunxian@oss.cipunited.com>
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In-Reply-To: <20230307090806.2003-1-zhujunxian@oss.cipunited.com>
Subject: Re: [FFmpeg-devel] [PATCH v3] avcodec/mathops: Optimize generic
 mid_pred function
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On Tue, Mar 07, 2023 at 05:08:27PM +0800, Junxian Zhu wrote:
> From: Junxian Zhu <zhujunxian@oss.cipunited.com>
>=20
> Rewrite mid_pred function in generic mathops.h, reduce branch jump to imp=
rove performance. And because nowadays new version compiler can compile eno=
ugh short asmbbely code as handwritting in these function, so remove specif=
ied optimized mips inline asmbbely mathops.h.

as you write, that it improves performance
what speed effect does this have exactly?
thx

[...]
--=20
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is dangerous to be right in matters on which the established authorities
are wrong. -- Voltaire

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