From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 2/7] sws: add jobs option, distinct from threads
Date: Wed, 21 Sep 2022 11:04:42 +0200
Message-ID: <20220921090442.GB6583@pb2> (raw)
In-Reply-To: <20220921083704.GA6583@pb2>
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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
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next prev parent reply other threads:[~2022-09-21 9:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 17:50 [FFmpeg-devel] [PATCH] lavfi: make job count configurable separately from thread count rcombs
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 1/7] lavu/cpu: add av_cpu_job_count() rcombs
2022-09-22 13:49 ` Anton Khirnov
2022-09-22 14:56 ` Ronald S. Bultje
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 2/7] sws: add jobs option, distinct from threads rcombs
2022-09-21 8:37 ` Michael Niedermayer
2022-09-21 9:04 ` Michael Niedermayer [this message]
2022-09-21 18:25 ` James Almer
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 3/7] lavfi: add jobs args rcombs
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 4/7] ffmpeg: add filter_jobs and filter_complex_jobs args rcombs
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 5/7] ffplay: add filter_jobs arg rcombs
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 6/7] lavfi/vf_unsharp: use ff_filter_get_nb_jobs rcombs
2022-09-20 17:50 ` [FFmpeg-devel] [PATCH 7/7] lavfi/vf_scale: set sws job count using ff_filter_get_nb_jobs rcombs
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