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I have just installed a new version - 2017.09.12 - of the “LIVE555 Streaming Media” software that should > On Sep 10, 2017, at 8:37 PM, Praveen Somayya Mathad > <praveen.mat...@pathpartnertech.com> wrote: > > Hi, > > Opus is sent as private stream1, i.e stream-type 0xBD and stream-type 0x06 > which is clear from the below links provided. Any how we could not find any > latest std document but it is registered under smpte( > https://smpte-ra.org/registered-mpeg-ts-ids). Also opus has support in > gstreamer(i.e gstreamer elements -> mpegtsmux, tsdemux, rtpmp2pay, > rtpmp2depay) which is confirmation that opus is included in mpegversion > family. Please find below links which are useful. > > - http://www.obe.tv/about-us/obe-blog/item/14-using-opus-audio-in-broadcasting > - https://wiki.xiph.org/OpusTS > > > > Thanks & Regards, > Praveen S Mathad > > On Sun, Sep 10, 2017 at 12:30 AM, <live-devel-requ...@ns.live555.com> wrote: > Send live-devel mailing list submissions to > live-devel@lists.live555.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.live555.com/mailman/listinfo/live-devel > or, via email, send a message with subject or body 'help' to > live-devel-requ...@lists.live555.com > > You can reach the person managing the list at > live-devel-ow...@lists.live555.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of live-devel digest..." > > > Today's Topics: > > 1. Re: Assistance (Ross Finlayson) > 2. Opus Support in Live555 (Praveen Somayya Mathad) > 3. Re: Opus Support in Live555 (Ross Finlayson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 8 Sep 2017 21:06:07 -0700 > From: Ross Finlayson <finlay...@live555.com> > To: LIVE555 Streaming Media - development & use > <live-de...@ns.live555.com> > Subject: Re: [Live-devel] Assistance > Message-ID: <f82ec196-421e-43ba-bac2-e02a498e2...@live555.com> > Content-Type: text/plain; charset=utf-8 > > (Sorry for the delay; I?m catching up on a big backlog of email.) > > > > Could you point me to some tools or forums to help resolve a problem I?m > > having with freezing video? We are using Live555 as a proxy server to > > serve up 10 -15 clients a live camera feed. If my clients connect directly > > to the camera there is no problem and the picture is clear. However, when > > my clients are connected to Live555 they freeze regularly for 3 - 4 > > seconds. This includes when the client is running both connections > > simultaneously (one to the camera and one to the Live55 server). The > > clients are using VLC media player 2.2.6. > > > > Do you have any suggestions for us to try? > > First, it wasn?t totally clear from your email whether or not you are running > two (or more) copies of VLC on the same computer, but I?d be wary of doing > this; this has known performance problems. But assuming that you?re not > doing this: > > In my experience, scalability issues with a reasonably small number of > clients (e.g., 10-15) are often caused by running up against network > bandwidth limits. Note that if you are running the ?LIVE555 Proxy Server? on > a host, serving a single ?back end? stream to N ?front-end? clients, then the > bitrate on your host?s network interface will be N+1 times the bitrate of the > ?back-end? stream. You may be approaching the capacity of your network > (which is usually a lot less than the nominal bit rate of your network > adaptor(s)). > > Another (related) possibility: People also run into problems if they have > very large ?key frames', because that makes them very vulnerable to network > packet loss. If you have large ?key frames?, I suggest reconfiguring your > ?back-end? stream so that it generates a sequence of ?slice? H.264 NAL units > for each key frame, rather than a single (extremely large) NAL unit for each > key frame. (This assumes that your stream is H.264) This is something that I > have commented on numerous times; see, for example: > > http://lists.live555.com/pipermail/live-devel/2011-December/014190.html > http://lists.live555.com/pipermail/live-devel/2012-August/015615.html > http://lists.live555.com/pipermail/live-devel/2013-May/016994.html > http://lists.live555.com/pipermail/live-devel/2014-June/018426.html > http://lists.live555.com/pipermail/live-devel/2014-June/018432.html > http://lists.live555.com/pipermail/live-devel/2014-June/018433.html > http://lists.live555.com/pipermail/live-devel/2014-June/018434.html > http://lists.live555.com/pipermail/live-devel/2015-March/019135.html > http://lists.live555.com/pipermail/live-devel/2015-April/019228.html > > > Ross Finlayson > Live Networks, Inc. > http://www.live555.com/ > > > > > ------------------------------ > > Message: 2 > Date: Sat, 9 Sep 2017 13:20:07 +0530 > From: Praveen Somayya Mathad <praveen.mat...@pathpartnertech.com> > To: live-de...@ns.live555.com > Subject: [Live-devel] Opus Support in Live555 > Message-ID: > <capd3twmqgenefkq25ea7dmcc_u53q41bkdsmpt5pkh41ke9...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi, > > We want to stream* h264 video and** opus audio in Transport stream(mpeg-ts)* > , > As for as we know Opus is newly added to DVB standard and mpegversion > family. In live555 its hard to find opus related classes in mpeg transport > elementary stream. Before we could start actual work can you please confirm > regarding the below. > > 1. Do we have media classes for muxing opus audio with video in mpeg-ts > format in Live555. > 2. If yes please share classes details for opus. > 3. If No, Share detalis for How we could manipulate elementary stream by > applying patch for *opus adding PMT, PSI, stream-id. stream-type*. > > > *Request you to provide as much as details as posiible.* > > > > > Thanks & Reagrds, > Praveen S Mathad > > -- > > > This message contains confidential information and is intended only for the > individual(s) named. If you are not the intended recipient, you are > notified that disclosing, copying, distributing or taking any action in > reliance on the contents of this mail and attached file/s is strictly > prohibited. Please notify the sender immediately and delete this e-mail > from your system. E-mail transmission cannot be guaranteed to be secured or > error-free as information could be intercepted, corrupted, lost, destroyed, > arrive late or incomplete, or contain viruses. The sender therefore does > not accept liability for any errors or omissions in the contents of this > message, which arise as a result of e-mail transmission. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.live555.com/pipermail/live-devel/attachments/20170909/36548780/attachment-0001.html> > > ------------------------------ > > Message: 3 > Date: Sat, 9 Sep 2017 01:23:44 -0700 > From: Ross Finlayson <finlay...@live555.com> > To: LIVE555 Streaming Media - development & use > <live-de...@ns.live555.com> > Subject: Re: [Live-devel] Opus Support in Live555 > Message-ID: <fb872ba2-c576-4ba5-8e65-f8b025b39...@live555.com> > Content-Type: text/plain; charset=utf-8 > > > 1. Do we have media classes for muxing opus audio with video in mpeg-ts > > format in Live555.? > > No, not yet, because I don?t yet know how this is done - in particular, what > ?stream type? code is used for Opus audio > > > As for as we know Opus is newly added to DVB standard and mpegversion > > family. > > Please forward (or give links to) the standard documents that describe this,. > > > Ross Finlayson > Live Networks, Inc. > http://www.live555.com/ > > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > live-devel mailing list > live-devel@lists.live555.com > http://lists.live555.com/mailman/listinfo/live-devel > > > ------------------------------ > > End of live-devel Digest, Vol 166, Issue 5 > ****************************************** > > > This message contains confidential information and is intended only for the > individual(s) named. If you are not the intended recipient, you are notified > that disclosing, copying, distributing or taking any action in reliance on > the contents of this mail and attached file/s is strictly prohibited. Please > notify the sender immediately and delete this e-mail from your system. E-mail > transmission cannot be guaranteed to be secured or error-free as information > could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, > or contain viruses. The sender therefore does not accept liability for any > errors or omissions in the contents of this message, which arise as a result > of e-mail transmission. > > _______________________________________________ > live-devel mailing list > live-devel@lists.live555.com > http://lists.live555.com/mailman/listinfo/live-devel _______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
