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 24EC946457 for ; Sat, 17 Jun 2023 18:37:33 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E745F68BECC; Sat, 17 Jun 2023 21:37:30 +0300 (EEST) Received: from relay1-d.mail.gandi.net (relay1-d.mail.gandi.net [217.70.183.193]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 5CAAF68BE95 for ; Sat, 17 Jun 2023 21:37:25 +0300 (EEST) X-GND-Sasl: michael@niedermayer.cc Received: by mail.gandi.net (Postfix) with ESMTPSA id 92FB6240003 for ; Sat, 17 Jun 2023 18:37:24 +0000 (UTC) Date: Sat, 17 Jun 2023 20:37:23 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20230617183723.GP1391451@pb2> References: <20230616222048.6562-1-michael@niedermayer.cc> <20230616222048.6562-6-michael@niedermayer.cc> <20230617084627.GM1391451@pb2> <20230617124842.GN1391451@pb2> MIME-Version: 1.0 In-Reply-To: X-Spam-Flag: yes X-Spam-Level: ************ X-GND-Spam-Score: 180 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="===============0011729233904759838==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============0011729233904759838== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="A8Mw485Cm798ydCA" Content-Disposition: inline --A8Mw485Cm798ydCA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Jun 17, 2023 at 08:08:11PM +0200, Paul B Mahol wrote: [...] > Which library handles compressed stuff? For digital stuff like DAB/DVB/... sdrdemux in libavformat will demodulate, do error correction then return A= VPacket with H.264 / Mpeg2 video or AAC or wahetever That then will get passed to libavcodec, same as with any other demuxer. This code is not written yet. There is just analog AM demodulation. I posted this patch as soon as the first usecase worked usecase was "listen to random AM radio stations in ffplay" :) and it can also grab all AM stations in a 10Mhz window and demodulate all (that 10mhz is what my hw and usb bandwidth can do max) I intend to add FM demodulation, because it seems a fun thing to try to do. someone will need to add DAB/DVB support, I would be happy if someone else comes forth to do that. If noone does ill think about if i want to do it or not once FM is done and once this is in git. The initial reaction from some was a bit spicy, so i need to think how much fun this is in FFmpeg. But one thing i can say for sure, is, if i cannot use this in ffplay then it makes no sense for me to put more time into it We could implement seeking to next/previous stations differently but it seems a bit like creating extra work for everyone. I mean a new API in sdrdemux then ffplay needs to support that and then other players would need to support it and so on. While really the seeking on a realtime input has no other use thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Democracy is the form of government in which you can choose your dictator --A8Mw485Cm798ydCA Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCZI39XgAKCRBhHseHBAsP q6EKAJ9myEs/W1JORjP98fspT8D/LW7CYQCeI2F0nLIi9xiQorMJyZ3dE2yHGDk= =hUF5 -----END PGP SIGNATURE----- --A8Mw485Cm798ydCA-- --===============0011729233904759838== 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". --===============0011729233904759838==--