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 A8EDC47CD0 for ; Tue, 17 Oct 2023 22:19:49 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 89EBA68C9E6; Wed, 18 Oct 2023 01:19:46 +0300 (EEST) Received: from nef.ens.fr (nef2.ens.fr [129.199.96.40]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4114768C419 for ; Wed, 18 Oct 2023 01:19:40 +0300 (EEST) X-ENS-nef-client: 129.199.129.80 ( name = phare.normalesup.org ) Received: from phare.normalesup.org (phare.normalesup.org [129.199.129.80]) by nef.ens.fr (8.14.4/1.01.28121999) with ESMTP id 39HMJdBr004063 for ; Wed, 18 Oct 2023 00:19:39 +0200 Received: by phare.normalesup.org (Postfix, from userid 1001) id 11DC9EB5B7; Wed, 18 Oct 2023 00:19:39 +0200 (CEST) Date: Wed, 18 Oct 2023 00:19:39 +0200 From: Nicolas George To: FFmpeg development discussions and patches Message-ID: References: MIME-Version: 1.0 In-Reply-To: X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (nef.ens.fr [129.199.96.32]); Wed, 18 Oct 2023 00:19:39 +0200 (CEST) Subject: Re: [FFmpeg-devel] [RFC] A file format to store generic raw image/video files 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="===============1363050748106836855==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============1363050748106836855== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3SgzMW1E5AVIpe0S" Content-Disposition: inline --3SgzMW1E5AVIpe0S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Chema Gonzalez via ffmpeg-devel (12023-10-17): > # RFC: A file format to store generic raw image/video files >=20 > Context: Developers and researchers often want to use raw image/video > files, as they avoid the effects of encoding. Dealing with raw Looks like a XY problem. > We propose a new raw image/video format, R4M, that extends Y4M to support: Please explain why you think storing raw video or any other lossless codec into a standard container format like Matroska or Nut does not satisfy your needs. > * (a) every `pix_fmt` that ffmpeg supports. The implementation would > support generic AVPixFmtDescriptor's, so any new pixel format based on > it will be automatically supported. This includes > planar/packed/semiplanar, yuv/rgb/bayer, and others. This does not make any sense. Please mediate on the fundamental difference between in-memory representations and permanent storage representations. PS: do not Cc me. Regards, --=20 Nicolas George --3SgzMW1E5AVIpe0S Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE6ooRQGBoNzw0KnwPcZVLI8pNxgwFAmUvCHgACgkQcZVLI8pN xgw/LA/9FowesBDboJRUHoIuRzaxsJPT6Uy71q/b5fHJhw2R6WuK8t20by7ilEXs VtlNmcC6C+NhEgXKCjgNNvcxfL2SIErhFbcdmwhyQoa0JWjSokhstRpgFDl8STyy mJkMQnp67lan4PibizyBVeOUEJmUZSWvRwDVda+dhuKyMrBpMShv0LWzdMKAE8m7 OvHey/jwMgo8S0nWDKzeuDug2BR8bWAMCCHRZvAnEIfBxaXVrKCAJFcVh01bxaqU W2Rm8Da4TNBECmBO4SDRZjwo6ges1Jq7007SREFwvOVFjLIA656GMirGZjwfniUm 78w2wFcE8X8nnEBNOSjeZJnjlo+qUnVNK8ERMiKPoxXQACdiGGSo1AS9yN0c2UBd Akh7vK+tSfSapiJM8aXXnwfsxif8UPkG4LhFJAk0qBSmKrn/SSdPFvNPPSzYW4yh abgX8TenhyFlysgDKRIZODAY+Jr05woiQDyKtCwFUaX4AI3WSKbJsYPRdn5uaFZ9 KUqqEkNRgqLogD2tqxN2yTzRLDLp84rwo3KAKEunxQxzupQBaoqbZ++orF5gNswn gCwclyvKczweWa10qW86Zkr/PcLMcNDdru2f6XyMDRVzKYqz2yan5/fR0HvsD1qp CxmxisyE6r8jMUfiDszJ28Pybid59x7uXXNQ/5/+7+KLLbqc15o= =XWJP -----END PGP SIGNATURE----- --3SgzMW1E5AVIpe0S-- --===============1363050748106836855== 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". --===============1363050748106836855==--