From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mail.toke.dk; spf=pass (mailfrom) smtp.mailfrom=irif.fr (client-ip=2001:660:3301:8000::1:2; helo=korolev.univ-paris7.fr; envelope-from=jch@irif.fr; receiver=) Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) by mail.toke.dk (Postfix) with ESMTPS id 151F682921B for ; Fri, 9 Apr 2021 16:17:21 +0200 (CEST) Received: from potemkin.univ-paris7.fr (potemkin.univ-paris7.fr [IPv6:2001:660:3301:8000::1:1]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/82085) with ESMTP id 139EHK4n008096 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 9 Apr 2021 16:17:20 +0200 Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by potemkin.univ-paris7.fr (8.14.4/8.14.4/relay2/82085) with ESMTP id 139EHKBv021918; Fri, 9 Apr 2021 16:17:20 +0200 Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id A4A6DFD2EA; Fri, 9 Apr 2021 16:17:20 +0200 (CEST) X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 93lxg-Ylf8Ui; Fri, 9 Apr 2021 16:17:18 +0200 (CEST) Received: from pirx.irif.fr (unknown [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 8BCB6FD2E4; Fri, 9 Apr 2021 16:17:18 +0200 (CEST) Date: Fri, 09 Apr 2021 16:17:18 +0200 Message-ID: <87h7kfo841.wl-jch@irif.fr> From: Juliusz Chroboczek To: Alexandre IOOSS In-Reply-To: <802366a1-df1b-3b4c-4c0d-b49c0dde9210@crans.org> References: <228e92c1-d1f7-bc6d-4f44-c9cfd28f0096@crans.org> <87zgybsh84.wl-jch@irif.fr> <76e5b62b-ee5b-3117-ea04-368fab0e659b@crans.org> <877dlfrofb.wl-jch@irif.fr> <87wntdn49u.wl-jch@irif.fr> <87tuohn42a.wl-jch@irif.fr> <802366a1-df1b-3b4c-4c0d-b49c0dde9210@crans.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/27.1 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]); Fri, 09 Apr 2021 16:17:20 +0200 (CEST) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (potemkin.univ-paris7.fr [194.254.61.141]); Fri, 09 Apr 2021 16:17:20 +0200 (CEST) X-Miltered: at korolev with ID 607061F0.001 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-Miltered: at potemkin with ID 607061F0.003 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)! X-j-chkmail-Enveloppe: 607061F0.001 from potemkin.univ-paris7.fr/potemkin.univ-paris7.fr/null/potemkin.univ-paris7.fr/ X-j-chkmail-Enveloppe: 607061F0.003 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/ X-j-chkmail-Score: MSGID : 607061F0.001 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Score: MSGID : 607061F0.003 on potemkin.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000 X-j-chkmail-Status: Ham X-j-chkmail-Status: Ham Message-ID-Hash: KA7CE6JPGNBDLKEUO7D7H2ZUYB4BPFR4 X-Message-ID-Hash: KA7CE6JPGNBDLKEUO7D7H2ZUYB4BPFR4 X-MailFrom: jch@irif.fr X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: galene@lists.galene.org X-Mailman-Version: 3.3.4 Precedence: list Subject: [Galene] Re: Building a streaming gateway for =?iso-8859-1?q?Gal=E8ne?= List-Id: =?utf-8?q?Gal=C3=A8ne_videoconferencing_server_discussion_list?= Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: > Ok so everything is fine with SSRC. I was worried because Wireshark does > not seem to decode properly the RTP packets (encryption?). Most likely encryption. WebRTC uses SRTP, only the packet type, the SSRC and the RTP timestamp (but not the RTCP timestamp) are sent in the clear. (Which has always made me nervous. If you have access to accurate timestamps and packet lengths, how much audio can you recover? Should Gal=E8ne be sending cover traffic?)