From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH v3] avcodec/mathops: Optimize generic mid_pred function
Date: Tue, 7 Mar 2023 21:45:27 +0100
Message-ID: <20230307204527.GF1928637@pb2> (raw)
In-Reply-To: <20230307090806.2003-1-zhujunxian@oss.cipunited.com>
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On Tue, Mar 07, 2023 at 05:08:27PM +0800, Junxian Zhu wrote:
> From: Junxian Zhu <zhujunxian@oss.cipunited.com>
>
> Rewrite mid_pred function in generic mathops.h, reduce branch jump to improve performance. And because nowadays new version compiler can compile enough short asmbbely code as handwritting in these function, so remove specified optimized mips inline asmbbely mathops.h.
as you write, that it improves performance
what speed effect does this have exactly?
thx
[...]
--
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
It is dangerous to be right in matters on which the established authorities
are wrong. -- Voltaire
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next prev parent reply other threads:[~2023-03-07 20:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-07 9:08 Junxian Zhu
2023-03-07 20:45 ` Michael Niedermayer [this message]
2023-03-15 10:09 ` YunQiang Su
2023-03-16 21:56 ` Michael Niedermayer
-- strict thread matches above, loose matches on Subject: below --
2023-03-06 9:10 Junxian Zhu
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