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 0593746421 for ; Sat, 17 Jun 2023 08:46:38 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 8FE1668C37F; Sat, 17 Jun 2023 11:46:36 +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 A4FD668BF08 for ; Sat, 17 Jun 2023 11:46:29 +0300 (EEST) X-GND-Sasl: michael@niedermayer.cc Received: by mail.gandi.net (Postfix) with ESMTPSA id CE4A61C0005 for ; Sat, 17 Jun 2023 08:46:28 +0000 (UTC) Date: Sat, 17 Jun 2023 10:46:27 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20230617084627.GM1391451@pb2> References: <20230616222048.6562-1-michael@niedermayer.cc> <20230616222048.6562-6-michael@niedermayer.cc> MIME-Version: 1.0 In-Reply-To: X-Spam-Flag: yes X-Spam-Level: *********** X-GND-Spam-Score: 165 X-GND-Status: SPAM Subject: Re: [FFmpeg-devel] [PATCH 5/5] avformat: add sdr support 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="===============2633837951485722478==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============2633837951485722478== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="oxLJZCohhuSI1qU5" Content-Disposition: inline --oxLJZCohhuSI1qU5 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jun 17, 2023 at 08:16:04AM +0200, Paul B Mahol wrote: > Please no more pseudo demuxers. >=20 > Use libavfilter API. sdrdemux takes a single linear stream of numbers containing multiple radio = stations and demuxes it into individual streams (the stream can come from a file or a hardware device) This is litterally the definition of demuxing just the first line from wikipedia about it "Demuxer" (which redirected to)= "Multiplexing" "In telecommunications and computer networking, multiplexing (sometimes con= tracted to muxing) is a method by which multiple analog or digital signals = are combined into one signal over a shared medium. The aim is to share a sc= arce resource - a physical transmission medium." "A device that performs the multiplexing is called a multiplexer (MUX), and= a device that performs the reverse process is called a demultiplexer (DEMU= X or DMX)." This is exactly what radio transmissions are, multiple radio, tv, telecommunication, digital, analog signals are transmitted over the shared radio wave channel. If you look at https://en.wikipedia.org/wiki/Multiplexing The 1st diagram to the right on th e1st page lists litterally AM, FM on the= 2nd line under Multiplexing if sdrdemux should be a avfilter, than every demuxer we have should be a avfilter too. Iam not objecting to that, but thats not how avfilter and avformat is structured today. Demuxers in FFmpeg are not AVFilters Thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I am the wisest man alive, for I know one thing, and that is that I know nothing. -- Socrates --oxLJZCohhuSI1qU5 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCZI1y3gAKCRBhHseHBAsP q+eRAJ9dlHmEJXbIYwAEAJKnJMT+OtzbXwCcCcyEy+lb7zOZpBXsN7H9BSXFek0= =4vD9 -----END PGP SIGNATURE----- --oxLJZCohhuSI1qU5-- --===============2633837951485722478== 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". --===============2633837951485722478==--