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 26C7D409AE for ; Fri, 24 Dec 2021 18:36:50 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id A441B68AFD4; Fri, 24 Dec 2021 20:36:48 +0200 (EET) Received: from relay10.mail.gandi.net (relay10.mail.gandi.net [217.70.178.230]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 1B41168AF87 for ; Fri, 24 Dec 2021 20:36:42 +0200 (EET) Received: from localhost (213-47-68-29.cable.dynamic.surfer.at [213.47.68.29]) (Authenticated sender: michael@niedermayer.cc) by relay10.mail.gandi.net (Postfix) with ESMTPSA id 55F5B240003 for ; Fri, 24 Dec 2021 18:36:40 +0000 (UTC) Date: Fri, 24 Dec 2021 19:36:40 +0100 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20211224183640.GQ2829255@pb2> References: <20211224171758.GO2829255@pb2> MIME-Version: 1.0 In-Reply-To: Subject: Re: [FFmpeg-devel] [PATCH 36/36] avcodec/mpegvideo_enc: Remove dead code at compile time 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="===============1360715423795055842==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============1360715423795055842== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="2kPS9oLXDLT6LUTO" Content-Disposition: inline --2kPS9oLXDLT6LUTO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Dec 24, 2021 at 07:30:11PM +0100, Andreas Rheinhardt wrote: > Michael Niedermayer: > > On Fri, Dec 24, 2021 at 04:23:32AM +0100, Andreas Rheinhardt wrote: > >> There are no encoders for interlaced dct that support 4:4:4. > >=20 > > i dont remember why its not supported but > > why not add 4:4:4 interlaced dct support ? > >=20 > > just thinking as you already work on the code, that would seem to me > > the "more interresting" route than to optimize that out > >=20 > > nothing againt this patch of course, thats fine too > >=20 > > thx > > [...] > >=20 >=20 > There are two encoders that support interlaced DCT: mpeg2video and > mpeg4. Our encoder for the former supports 420 and 422; the format also > allows 444. I don't really know how much is missing for supporting this > (it's probably more than just hardcoding a third chroma format in > ff_mpeg1_encode_mb()). And honestly, I don't really want to reread the > mpeg-2 spec to find out, because it is nearly 2022 and MPEG-2 is > obsolete and legacy. our decoder should support 444 i dont remember anything special but i agree, it makes little sense for a old format unless one enjoys doing it thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Those who are too smart to engage in politics are punished by being governed by those who are dumber. -- Plato=20 --2kPS9oLXDLT6LUTO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCYcYTNAAKCRBhHseHBAsP q46ZAKCUr7hFl/gVCAagQtJI1FNksxY2BgCfTSFWSguEINToaV/z5K4NMKT3M6U= =gQzy -----END PGP SIGNATURE----- --2kPS9oLXDLT6LUTO-- --===============1360715423795055842== 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". --===============1360715423795055842==--