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 98C504078C for ; Sun, 30 Jan 2022 13:15:50 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id B140E68B18E; Sun, 30 Jan 2022 15:15:47 +0200 (EET) Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 5E10068B155 for ; Sun, 30 Jan 2022 15:15:41 +0200 (EET) Received: from localhost (213-47-68-29.cable.dynamic.surfer.at [213.47.68.29]) (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id 884E5C0005 for ; Sun, 30 Jan 2022 13:15:40 +0000 (UTC) Date: Sun, 30 Jan 2022 14:15:39 +0100 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20220130131539.GF2829255@pb2> References: MIME-Version: 1.0 In-Reply-To: Subject: Re: [FFmpeg-devel] [PATCH 02/41] avcodec/mjpegenc: Remove nonsense assert 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="===============0398346696291180321==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============0398346696291180321== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="q9+H/DXIyYSflbuW" Content-Disposition: inline --q9+H/DXIyYSflbuW Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Jan 30, 2022 at 07:27:10AM +0100, Andreas Rheinhardt wrote: > Writing optimal huffman tables is incompatible with using slices Fundamentally, this should not be i think CCITT Rec. T.81 says "If a table specification for a given destination occurs more than once in the compressed image data, each = specification shall replace the previous specification. The quantization table specification shall not be altered be= tween progressive DCT scans of a given component." This explicitly mentions quatization tables but not huffman tables so it seems allowed that they can be changed=20 [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB If you drop bombs on a foreign country and kill a hundred thousand innocent people, expect your government to call the consequence "unprovoked inhuman terrorist attacks" and use it to justify dropping more bombs and killing more people. The technology changed, the idea is old. --q9+H/DXIyYSflbuW Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCYfaPdwAKCRBhHseHBAsP q2PYAJ992X57FJnmp3vphK4XQNAnPx/R2ACfQU6SgegC2T7sxy12sZnNyltdq5E= =CL55 -----END PGP SIGNATURE----- --q9+H/DXIyYSflbuW-- --===============0398346696291180321== 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". --===============0398346696291180321==--