From: "Tomas Härdin" <git@haerdin.se>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 1/3] lavc/speedhqdec: Add AV_CODEC_CAP_FRAME_THREADS
Date: Wed, 08 May 2024 14:48:02 +0200
Message-ID: <ce900a0cc4485c6147e1f263351f0a15e97dd8d1.camel@haerdin.se> (raw)
In-Reply-To: <44cd0cf1-f3ac-402e-9d17-87f1416df823@gmail.com>
ons 2024-05-08 klockan 09:46 -0300 skrev James Almer:
> On 5/8/2024 9:42 AM, Tomas Härdin wrote:
> > Hi
> >
> > On a 36-core machine (Intel(R) Xeon(R) Platinum 8124M CPU @
> > 3.00GHz)
> > with a 7 minute 125 Mbit/s 1080p sample and -thread_type frame -
> > threads
> > 36 this brings CPU utilization from 117% to 3174%, 58x realtime
> >
> > Without -threads 36 the utilization is only 1601% due to it being
> > 16 by
> > default..
>
> Does this default make sense anymore? I think it was added for h264,
> but
> maybe it should be decoder dependent.
It is only relevant for slice threading in h264, right? It certainly
doesn't make sense for any intra-only codec in frame threading mode
/Tomas
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prev parent reply other threads:[~2024-05-08 12:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 12:42 Tomas Härdin
2024-05-08 12:42 ` [FFmpeg-devel] [PATCH 2/3] lavc/speedhqdec: Obey AVDISCARD_ALL Tomas Härdin
2024-05-08 12:43 ` [FFmpeg-devel] [PATCH 3/3] lavc/speedhqdec: Set AV_PICTURE_TYPE_I Tomas Härdin
2024-05-08 20:01 ` Marton Balint
2024-05-08 20:06 ` James Almer
2024-05-10 12:31 ` Tomas Härdin
2024-05-10 12:48 ` Andreas Rheinhardt
2024-05-11 23:07 ` Tomas Härdin
2024-05-13 6:57 ` Tomas Härdin
2024-05-08 12:46 ` [FFmpeg-devel] [PATCH 1/3] lavc/speedhqdec: Add AV_CODEC_CAP_FRAME_THREADS James Almer
2024-05-08 12:48 ` Tomas Härdin [this message]
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