From: Wang Bin <wbsecg1@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] Weird cross platform support in ffmpeg
Date: Wed, 1 Jun 2022 00:38:35 +0800
Message-ID: <CAA4bkHYs-ezZbR1RbzYc9nfhHS8racFuanzOd=pOFuf75TJMLg@mail.gmail.com> (raw)
In-Reply-To: <YpYoyQFhoxsUbADu@phare.normalesup.org>
Nicolas George <george@nsup.org> 于2022年5月31日周二 22:40写道：
> Александр (12022-05-31):
> > I analyzed problem a little bit. Only gcc/clang allows to use this trick.
> > Msvc compiler forbidens such code (even with different enabled
> > optimizations like remove unused references, whole program optimization
> > etc) I have made patch, which uses preprocessor #if directive instead. If
> > it will be helpful, I can share the patch.
>
> FATE shows FFmpeg builds fine on several MSVC instances, so no, we do
> not need such a patch at this time.
>
> I have asked you to show on ffmpeg-users the exact thing you are
> attempting to do, you have neglected to do that. It is obvious to me
> that you are trying to tweak the build process in a way that is not
> supported: stop.
>
>
If MSVC whole program optimization is enabled (compiler flag /GL), DCE will
not work.
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prev parent reply other threads:[~2022-05-31 16:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-31 10:03 Александр
2022-05-31 10:10 ` Nicolas George
2022-05-31 14:14 ` Timo Rothenpieler
2022-05-31 14:23 ` Andreas Rheinhardt
2022-05-31 14:33 ` Александр
2022-05-31 14:40 ` Nicolas George
2022-05-31 14:52 ` Александр
2022-05-31 16:38 ` Wang Bin [this message]
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