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 83EC74A797 for ; Mon, 8 Apr 2024 20:23:41 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id AD1C568D394; Mon, 8 Apr 2024 23:23:38 +0300 (EEST) 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 4AC5C68D392 for ; Mon, 8 Apr 2024 23:23:32 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 6E29AC0005 for ; Mon, 8 Apr 2024 20:23:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1712607811; 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=rgUMvXsW0QgxzYEU/kiNZkCHXW25OmhFu2Vo8zWpldM=; b=MdepJ7b6PRy2CNAxhvtFcc+oqYz40Hc5iDXhFq/28gXnlJ/GnyHpjcKLNCDyjEkDHlKNi/ +jLE55pjv0cejSMisr1NE0Ax/jS9jXFbz+eqabzy38pMFW7qKWDinvKtStix23AGtxtzUL NQ9ewzdt4niyA8s0Nc8FL8BzeqXXysfXFaPfdi13ioS7oj+8+rGez+6wO9cFlLipzoLfsT 5eN5hczWly/gglDHDPTSn46JhkMO1UiwpSeHzUhfuGgqU0Oh7SgrpsdEA5pAsjWC9Qknwb zImenm485EXI3QxQqavnNKWUcKLCCquu57Jee7KMn1xfs/WMgTdEXbR+/qCHww== Date: Mon, 8 Apr 2024 22:23:30 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20240408202330.GJ6420@pb2> References: <20240405185721.111072-1-ffmpeg@haasn.xyz> <20240408201833.GI6420@pb2> MIME-Version: 1.0 In-Reply-To: <20240408201833.GI6420@pb2> X-GND-Sasl: michael@niedermayer.cc Subject: Re: [FFmpeg-devel] [PATCH 01/11] avcodec: add avcodec_get_supported_config() 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="===============3832250317572579001==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============3832250317572579001== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="DItv5V/Bjjw9Oov7" Content-Disposition: inline --DItv5V/Bjjw9Oov7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Apr 08, 2024 at 10:18:33PM +0200, Michael Niedermayer wrote: > On Fri, Apr 05, 2024 at 08:57:11PM +0200, Niklas Haas wrote: > > From: Niklas Haas > >=20 > > This replaces the myriad of existing lists in AVCodec by a unified API > > call, allowing us to (ultimately) trim down the sizeof(AVCodec) quite > > substantially, while also making this more trivially extensible. > >=20 > > In addition to the already covered lists, add two new entries for color > > space and color range, mirroring the newly added negotiable fields in > > libavfilter. > >=20 > > I decided to drop the explicit length field from the API proposed by > > Andreas Rheinhardt, because having it in place ended up complicating > > both the codec side and the client side implementations, while also > > being strictly less flexible (it's trivial to recover a length given > > a terminator, but requires allocation to add a terminator given > > a length). Using a terminator also presents less of a porting challenge > > for existing users of the current API. > >=20 > > Once the deprecation period passes for the existing public fields, the > > rough plan is to move the commonly used fields (such as > > pix_fmt/sample_fmt) into FFCodec, possibly as a union of audio and video > > configuration types, and then implement the rarely used fields with > > custom callbacks. > > --- > > doc/APIchanges | 5 ++++ > > libavcodec/avcodec.c | 51 +++++++++++++++++++++++++++++++++++++ > > libavcodec/avcodec.h | 27 ++++++++++++++++++++ > > libavcodec/codec.h | 19 +++++++++++--- > > libavcodec/codec_internal.h | 21 +++++++++++++++ > > libavcodec/version.h | 4 +-- > > 6 files changed, 121 insertions(+), 6 deletions(-) >=20 > This patchset seems to overlap a bit with AVOptionRanges >=20 > I think ideally the user should at some point be able to query using some > API on a AVCodecContext/AVCodecParameters/AVFormatContex/AVStream > what for that specific instance are supported settings for each field let me clarify this a bit more, what i envission is some generic API that can take any AVClass/AVOption suporting struct and query a instance of it for supported ranges/lists of a AVOption field. some AVCodec passed into that call in addition to a AVCodecContext would be more messy in a generic API thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB No great genius has ever existed without some touch of madness. -- Aristotle --DItv5V/Bjjw9Oov7 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCZhRSQgAKCRBhHseHBAsP q1UUAJ9psvNHiL0zGqrRorwiAAkSucI7zQCcDlEw1F1NigHmePGiW6Er8IlxS9g= =RvZI -----END PGP SIGNATURE----- --DItv5V/Bjjw9Oov7-- --===============3832250317572579001== 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". --===============3832250317572579001==--