On Wed, May 11, 2022 at 10:16:47AM +0200, Anton Khirnov wrote:
> ---
>  fftools/ffmpeg.c | 75 +++++++++++-------------------------------------
>  1 file changed, 16 insertions(+), 59 deletions(-)

breaks 2pass with ffv1

./ffmpeg -y  -i mm-short.mpg -an -vcodec ffv1 -strict -2 -slices 4 -t 1 -coder 1 -level 2 -context 1 -bitexact -pass 1 /tmp/ffv1.2-p1.avi
./ffmpeg -y  -i mm-short.mpg -an -vcodec ffv1 -strict -2 -slices 4 -t 1 -coder 1 -level 2 -context 1 -bitexact -pass 2 /tmp/ffv1.2-p1.avi

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is a danger to trust the dream we wish for rather than
the science we have, -- Dr. Kenneth Brown