[FFmpeg-devel] [PATCH 2/7] sws: add jobs option, distinct from threads

Michael Niedermayer michael at niedermayer.cc
Wed Sep 21 12:04:42 EEST 2022


On Wed, Sep 21, 2022 at 10:37:04AM +0200, Michael Niedermayer wrote:
> On Tue, Sep 20, 2022 at 12:50:16PM -0500, rcombs wrote:
> > This allows for more efficient use of asymmetric-multiprocessing systems.
> > ---
> >  libswscale/options.c          | 2 ++
> >  libswscale/swscale_internal.h | 1 +
> >  libswscale/utils.c            | 9 ++++++---
> >  libswscale/version.h          | 2 +-
> >  4 files changed, 10 insertions(+), 4 deletions(-)
> 
> This chnages the output from
> ./ffmpeg -i ~/tickets/1984/00186002.avi -vframes 100 -qscale 1 -an -bitexact file-1984-ref.avi
> (i suspect its all yuv410p indeo videos not just this one)
> 
> I presume thats unintended
> also the jobs number ideally, especially with bitexact should not change
> the output
> 
> but maybe iam missing something

"same" issue appears with some dxtory, snow and 10bit h264 inputs

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No human being will ever know the Truth, for even if they happen to say it
by chance, they would not even known they had done so. -- Xenophanes
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