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From: Nicolas George via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Cc: Carl Hetherington <cth@carlh.net>, Nicolas George <george@nsup.org>
Subject: [FFmpeg-devel] Re: [PATCH] libavfilter: Fix incorrect ebur128 peak calculation.
Date: Tue, 4 Nov 2025 20:52:36 +0100
Message-ID: <aQpZhLD0EC3eDCSz@phare.normalesup.org> (raw)
In-Reply-To: <8bc32ae6-77aa-e5fe-bd1-cb55abdf9cc@carlh.net>

Carl Hetherington via ffmpeg-devel (HE12025-11-03):
> Since 3b26b782eeded9b9ab7fac013cd1a83a30d68206 it would only look at the
> first channel.
> 
> Signed-off-by: cth@carlh.net
> ---
>  libavfilter/f_ebur128.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Hi. Thanks for the patch. I suspect the issue has been here for a longer
time, if only on one branch of the conditional build:

#if CONFIG_SWRESAMPLE
…
                const double sample = fabs(swr_samples[i * nb_channels]);
#endif

versus

            const double *restrict samples_ch = &samples[ch];
…
                const double sample = fabs(samples_ch[nb_channels * i]);

Anyway, the fix looks good to me.

Niklas, it has become mostly your code, what do you make of it?

Regards,

-- 
  Nicolas George
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  reply	other threads:[~2025-11-04 19:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-03 20:38 [FFmpeg-devel] " Carl Hetherington via ffmpeg-devel
2025-11-04 19:52 ` Nicolas George via ffmpeg-devel [this message]
2025-11-04 21:34   ` [FFmpeg-devel] " Carl Hetherington via ffmpeg-devel

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