Re: [FFmpeg-devel] [PATCH v2] libavformat/vapoursynth: Update to API version 4, load library at runtime - Stefan Oltmanns via ffmpeg-devel

From: Stefan Oltmanns via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: ffmpeg-devel@ffmpeg.org
Cc: Stefan Oltmanns <stefan-oltmanns@gmx.net>
Subject: Re: [FFmpeg-devel] [PATCH v2] libavformat/vapoursynth: Update to API version 4, load library at runtime
Date: Thu, 18 Jul 2024 17:38:56 +0200
Message-ID: <e99888e6-8e0f-49d8-aa0f-e4eff453ac6a@gmx.net> (raw)
In-Reply-To: <172130193771.21847.12496308464135252572@lain.khirnov.net>

Hello Anton,

can you eloborate on that? What is unacceptable with my patch that is
perfectly fine in the AviSynth input module? It's the very same concept.

Loading the library at runtime makes it so much more useful, because you
can distribute ffmpeg binaries without forcing the user to install
VapourSynth (which requires the user to install Python).

VapourSynth is not just a library like x264 that you can link in
statically if you like, VapourSynth is a frame server (like AviSynth)
with it's own dependencies.
If you worry about platforms that do not support loading libraries at
runtime: VapourSynth is based on plugins that are loaded on runtime, so
it won't work on those platforms anyway.

Best regards
Stefan

Am 18.07.24 um 13:25 schrieb Anton Khirnov:
> Quoting Stefan Oltmanns via ffmpeg-devel (2024-07-18 11:37:56)
>> Hello,
>>
>> I adressed the issues/concerns that were raised with the first revision
>> of the patch.
>> Any feedback? Did I do something wrong?
>
> I dislike the concept in general, not to mention adding unacceptable
> global state.
>

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