From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 02B9444A4A for ; Tue, 4 Oct 2022 14:49:43 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 1AA3068BC4B; Tue, 4 Oct 2022 17:49:41 +0300 (EEST) 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 382B068BC1E for ; Tue, 4 Oct 2022 17:49:35 +0300 (EEST) Received: (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id 72A2D1C0008 for ; Tue, 4 Oct 2022 14:49:34 +0000 (UTC) Date: Tue, 4 Oct 2022 16:49:33 +0200 From: Michael Niedermayer To: ffmpeg-devel@ffmpeg.org Message-ID: <20221004144933.GC2046395@pb2> References: <20220921051253.6700141165B@natalya.videolan.org> MIME-Version: 1.0 In-Reply-To: <20220921051253.6700141165B@natalya.videolan.org> Subject: Re: [FFmpeg-devel] [FFmpeg-cvslog] x86/lpc: implement a new Welch windowing function X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: multipart/mixed; boundary="===============2187897194442759588==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============2187897194442759588== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="VywGB/WGlW4DM4P8" Content-Disposition: inline --VywGB/WGlW4DM4P8 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Sep 21, 2022 at 05:12:52AM +0000, Lynne wrote: > ffmpeg | branch: master | Lynne | Mon Sep 19 23:48:53 2022= +0200| [3ade6a8644ab519fcd7caa7ef457dd406162bc14] | committer: Lynne >=20 > x86/lpc: implement a new Welch windowing function >=20 > Old one was written with the assumption only even inputs would be given. > This very messy replacement supports even and odd inputs, and supports > AVX2 for extra speed. The buffers given are usually quite big (4k samples= ), > so the speedup is worth it. > The new SSE version is still faster than the old inline asm version by 33= %. >=20 > Also checkasm is provided to make sure this monstrosity works. >=20 > This fixes some FATE tests. >=20 > > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=3Dcommit;h=3D3ade6a864= 4ab519fcd7caa7ef457dd406162bc14 > --- This seems to "break" one flac case =2E/ffmpeg -i asynth-44100-2-2.wav -bitexact -frame_size 4095 -max_predict= ion_order 16 test-old.flac The file size becomes worse by alot: -rw-r----- 1 michael michael 379149 Okt 4 16:45 test-new.flac -rw-r----- 1 michael michael 235482 Okt 4 16:46 test-old.flac [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB While the State exists there can be no freedom; when there is freedom there will be no State. -- Vladimir Lenin --VywGB/WGlW4DM4P8 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCYzxH+AAKCRBhHseHBAsP q1LQAKCXRbDvAZ/kIag+7Vp3UurVyp6vpwCdHZUoinoTkrAp1Gdz/TR4UR6wVxM= =f23J -----END PGP SIGNATURE----- --VywGB/WGlW4DM4P8-- --===============2187897194442759588== 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". --===============2187897194442759588==--