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Date: Wed, 20 Mar 2024 15:23:53 +0100
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From: Niklas Haas <ffmpeg@haasn.xyz>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
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Subject: Re: [FFmpeg-devel] [PATCH 2/2] avfilter/vf_scale2ref: switch to
 FFFrameSync
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On Tue, 19 Mar 2024 22:55:56 +0100 Michael Niedermayer <michael@niedermayer.cc> wrote:
> is it neccessary to drop compatibility to the old syntax ?

Only if we want to use framesync. If we don't care about synchronizing
the streams, then we could drop FS and just use a custom activate
function which forwards output status only to the *corresponding* input.

Maybe also with printing a warning if the refstream parameters do happen
to change, since at that point we know it wouldn't be in sync.
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