From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <ffmpeg-devel-bounces@ffmpeg.org> Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id 1C4484E6B0 for <ffmpegdev@gitmailbox.com>; Thu, 13 Mar 2025 23:58:45 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 5F31368E2F1; Fri, 14 Mar 2025 01:58:41 +0200 (EET) Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 6E00D68C425 for <ffmpeg-devel@ffmpeg.org>; Fri, 14 Mar 2025 01:58:34 +0200 (EET) Received: by mail.gandi.net (Postfix) with ESMTPSA id 93C6E41CFB; Thu, 13 Mar 2025 23:58:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1741910313; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=mB44pWITh46D9LfiSNS9OZZ/7uS+b8NAMupfXNP/SJc=; b=BbttxzpmpSMr2bpQgtQTlxqfWlx5HILphG62DHVSA7vmiWKvKr/Ms/hqhyOQ4cUDklxB98 Cy/YAWAQfL5qdtptKer6hCE9hFR/kyPu6qZKd18ZcqsD7uZGOws0Xn7gwMI3Gd7Tw+N05z sV9zuaIjttYi/q8DNNQPaoxxH8d+G3Rc3UwJ3x0lUh2FBFlJb68fdqo6rdfb6nzD2jPPBp sltQC/3iRgQaLe30xrF3D7O5Ikt8oXO3zYg1WV/R5qJokTxjMhlAmMmSOPKrNuuO0fL4op tCzaD+Ug8IPF8ivCjUrpykNY933EFKOCe+XOXY3QoITANnuKUL1CqkxcqeHcEg== Date: Fri, 14 Mar 2025 00:58:32 +0100 From: Michael Niedermayer <michael@niedermayer.cc> To: ffmpeg-devel@ffmpeg.org, Niklas Haas <ffmpeg@haasn.xyz> Message-ID: <20250313235832.GD4991@pb2> References: <20241226193325.288834126EE@natalya.videolan.org> <20250126182659.GE2768425@pb2> <20250313235425.GC4991@pb2> MIME-Version: 1.0 In-Reply-To: <20250313235425.GC4991@pb2> X-GND-State: clean X-GND-Score: 10 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeefvddrtddtgdduvdelfeefucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecufghrlhcuvffnffculddutddmnecujfgurhepfffhvffukfhfgggtuggjsehgtderredttddvnecuhfhrohhmpefoihgthhgrvghlucfpihgvuggvrhhmrgihvghruceomhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtqeenucggtffrrghtthgvrhhnpeegvddujeffkeehffetgfdthfefudffheejheetgffghefflefgteffueehhfevheenucffohhmrghinhepvhhiuggvohhlrghnrdhorhhgnecukfhppeeguddrieeirdeijedruddufeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeguddrieeirdeijedruddufedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtpdhnsggprhgtphhtthhopedvpdhrtghpthhtohepfhhfmhhpvghgqdguvghvvghlsehffhhmphgvghdrohhrghdprhgtphhtthhopehffhhmphgvgheshhgrrghsnhdrgiihii X-GND-Sasl: michael@niedermayer.cc Subject: Re: [FFmpeg-devel] [FFmpeg-cvslog] swscale: use 16-bit intermediate precision for RGB/XYZ conversion X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org> List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe> List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel> List-Post: <mailto:ffmpeg-devel@ffmpeg.org> List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help> List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>, <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe> Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org> Content-Type: multipart/mixed; boundary="===============2777307502854412529==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org> Archived-At: <https://master.gitmailbox.com/ffmpegdev/20250313235832.GD4991@pb2/> List-Archive: <https://master.gitmailbox.com/ffmpegdev/> List-Post: <mailto:ffmpegdev@gitmailbox.com> --===============2777307502854412529== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="91hvyJtQxhE7ifRW" Content-Disposition: inline --91hvyJtQxhE7ifRW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Mar 14, 2025 at 12:54:25AM +0100, Michael Niedermayer wrote: > Hi >=20 > On Sun, Jan 26, 2025 at 07:26:59PM +0100, Michael Niedermayer wrote: > > On Thu, Dec 26, 2024 at 07:33:23PM +0000, Niklas Haas wrote: > > > ffmpeg | branch: master | Niklas Haas <git@haasn.dev> | Mon Dec 16 14= :49:39 2024 +0100| [af6d52eec66961f6a502b0f2f390c12226d087cd] | committer: = Niklas Haas > > >=20 > > > swscale: use 16-bit intermediate precision for RGB/XYZ conversion > > >=20 > > > The current logic uses 12-bit linear light math, which is woefully in= sufficient > > > and leads to nasty postarization artifacts. This patch simply switche= s the > > > internal logic to 16-bit precision. > > >=20 > > > This raises the memory requirement of these tables from 32 kB to 272 = kB. > > >=20 > > > All relevant FATE tests updated for improved accuracy. > > >=20 > > > Fixes: #4829 > > > Signed-off-by: Niklas Haas <git@haasn.dev> > > > Sponsored-by: Sovereign Tech Fund > > >=20 > > > > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=3Dcommit;h=3Daf6d5= 2eec66961f6a502b0f2f390c12226d087cd > > > --- > >=20 > > this breaks on x86-32 >=20 > ping >=20 > the fate tests for a major architecture are broken since this > This impacts future bisections over that range for example It also prevents others from easily seeing other failures as x86-32 is already broken thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Freedom in capitalist society always remains about the same as it was in ancient Greek republics: Freedom for slave owners. -- Vladimir Lenin --91hvyJtQxhE7ifRW Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCZ9NxKAAKCRBhHseHBAsP q0UyAJ9iri+cJ1KZJsO4Q5MVppUSzesmUgCfUSkrChyH8bZUpJVAgRS+aJq0758= =tKE8 -----END PGP SIGNATURE----- --91hvyJtQxhE7ifRW-- --===============2777307502854412529== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". --===============2777307502854412529==--