From: Mark Reid <mindmark@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 06/11] avutil/half2float: adjust conversion of NaN
Date: Wed, 10 Aug 2022 15:37:15 -0700
Message-ID: <CA+anCRkDu8niWSpbJpvtR5QiP1iuTw=Zarz=PsO3q3MSYYn6SQ@mail.gmail.com> (raw)
In-Reply-To: <9f390e60-6243-115c-ca11-81d2fc3d43e9@rothenpieler.org>
On Wed, Aug 10, 2022 at 3:28 PM Timo Rothenpieler <timo@rothenpieler.org>
wrote:
> On 11.08.2022 00:18, James Almer wrote:
> > Then maybe the current implementation should be moved back to exr (it
> > used to be internal to exr until Paul made it standalone), so this lavu
> > module can match the existing hardware implementations of IEEE-734 half
> > floats for the purpose of relevant pixel format support.
>
> That doesn't seem necessary to me.
> The values produced before and now are both correct, just different.
> But there is no functional difference in the values it produces.
>
> Duplicating the entirety of that code just for that seems extremely
> unnecessary.
>
openexr does note the intel implementations difference here
https://github.com/AcademySoftwareFoundation/Imath/blob/main/src/Imath/half.h#L288
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next prev parent reply other threads:[~2022-08-10 22:37 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 20:47 [FFmpeg-devel] [PATCH 01/11] lavu/pixfmt: add packed RGBA float16 format Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 02/11] avutil/hwcontext_d3d11va: add support for rgbaf16 pixel format Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 03/11] avfilter/vsrc_ddagrab: add rgbaf16 output support Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 04/11] avfilter/vsrc_ddagrab: add options for more control over output format fallback Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 05/11] avutil: move half-precision float helper to avutil Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 06/11] avutil/half2float: adjust conversion of NaN Timo Rothenpieler
2022-08-10 21:24 ` Andreas Rheinhardt
2022-08-10 21:36 ` Timo Rothenpieler
2022-08-10 21:43 ` Andreas Rheinhardt
2022-08-10 21:53 ` Timo Rothenpieler
2022-08-10 22:14 ` Mark Reid
2022-08-10 22:18 ` James Almer
2022-08-10 22:28 ` Timo Rothenpieler
2022-08-10 22:37 ` Mark Reid [this message]
2022-08-10 22:55 ` Timo Rothenpieler
2022-08-11 2:18 ` Mark Reid
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 07/11] avutil/half2float: move tables to header-internal structs Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 08/11] avutil/half2float: move non-inline init code out of header Timo Rothenpieler
2022-08-11 20:46 ` Michael Niedermayer
2022-08-11 20:50 ` Andreas Rheinhardt
2022-08-11 21:16 ` Michael Niedermayer
2022-08-11 21:31 ` Andreas Rheinhardt
2022-08-14 19:32 ` Michael Niedermayer
2022-08-15 4:20 ` Andreas Rheinhardt
2022-08-15 18:09 ` Michael Niedermayer
2022-08-14 21:54 ` Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 09/11] avutil/half2float: use native _Float16 if available Timo Rothenpieler
2022-08-10 21:03 ` Andreas Rheinhardt
2022-08-10 21:58 ` Timo Rothenpieler
2022-08-10 22:02 ` James Almer
2022-08-10 22:51 ` [FFmpeg-devel] [PATCH v2 " Timo Rothenpieler
2022-08-11 0:14 ` James Almer
2022-08-11 11:50 ` Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 10/11] swscale: add SwsContext parameter to input functions Timo Rothenpieler
2022-08-10 20:52 ` Timo Rothenpieler
2022-08-10 21:55 ` Andreas Rheinhardt
2022-08-10 22:02 ` Timo Rothenpieler
2022-08-10 20:47 ` [FFmpeg-devel] [PATCH 11/11] swscale/input: add rgbaf16 input support Timo Rothenpieler
2022-08-10 21:37 ` Timo Rothenpieler
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