Hi,
is it possible to "call" an IP camera? I'm thinking about
something like
bridging with a music stream, but instead of streaming audio, bridge with
the video stream from the camera.
It would be very cool if I could just call the camera and see what's going
on. Ffmpeg shows the following streams available from the camera:
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 12
fps, 12 tbr, 90k tbn, 24 tbc
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 640x352, 12 fps,
12 tbr, 90k tbn, 24 tbc
Perhaps it's not even necessary to recode the stream?
On Thursday 24 September 2020 at 16:31:33, hw wrote:> Hi, > > is it possible to "call" an IP camera?Only if it talks SIP (which some do, generally door entry cameras with a push button input and often a lock release output).> I'm thinking about something like bridging with a music stream, but instead > of streaming audio, bridge with the video stream from the camera.So, maybe you should treat it like a music stream such as music on hold?> It would be very cool if I could just call the camera and see what's going > on. Ffmpeg shows the following streams available from the camera: > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 12 > fps, 12 tbr, 90k tbn, 24 tbc > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 640x352, 12 fps, > 12 tbr, 90k tbn, 24 tbc > > Perhaps it's not even necessary to recode the stream?Very likely, but what you're looking at there is the media format; you also need some sort of signalling protocol if you're going to call it from Asterisk. I would start with something like https://www.voip-info.org/asterisk-config-musiconholdconf/ https://www.voip-info.org/wiki/view/Asterisk+config+musiconhold.conf (or any more up to date documentation if you can find it). I've never tried that with video, but given how the media negotiation between Asterisk and SIP devices is handled, I would expect it to work given compatible codecs. Antony. -- I bought a book on memory techniques, but I've forgotten where I put it. Please reply to the list; please *don't* CC me.
The Grandstream camera product line has SIP output so you can "call" the camera -----Original Message----- From: asterisk-users [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Antony Stone Sent: Thursday, September 24, 2020 10:57 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] call an IP camera? On Thursday 24 September 2020 at 16:31:33, hw wrote:> Hi, > > is it possible to "call" an IP camera?Only if it talks SIP (which some do, generally door entry cameras with a push button input and often a lock release output).> I'm thinking about something like bridging with a music stream, but instead > of streaming audio, bridge with the video stream from the camera.So, maybe you should treat it like a music stream such as music on hold?> It would be very cool if I could just call the camera and see what's going > on. Ffmpeg shows the following streams available from the camera: > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 12 > fps, 12 tbr, 90k tbn, 24 tbc > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 640x352, 12 fps, > 12 tbr, 90k tbn, 24 tbc > > Perhaps it's not even necessary to recode the stream?Very likely, but what you're looking at there is the media format; you also need some sort of signalling protocol if you're going to call it from Asterisk. I would start with something like https://www.voip-info.org/asterisk-config-musiconholdconf/ https://www.voip-info.org/wiki/view/Asterisk+config+musiconhold.conf (or any more up to date documentation if you can find it). I've never tried that with video, but given how the media negotiation between Asterisk and SIP devices is handled, I would expect it to work given compatible codecs. Antony. -- I bought a book on memory techniques, but I've forgotten where I put it. Please reply to the list; please *don't* CC me. -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
On Thu, 2020-09-24 at 16:57 +0200, Antony Stone wrote:> On Thursday 24 September 2020 at 16:31:33, hw wrote: > > > Hi, > > > > is it possible to "call" an IP camera? > > Only if it talks SIP (which some do, generally door entry cameras with a > push > button input and often a lock release output). > > > I'm thinking about something like bridging with a music stream, but > > instead > > of streaming audio, bridge with the video stream from the camera. > > So, maybe you should treat it like a music stream such as music on hold? > > > It would be very cool if I could just call the camera and see what's > > going > > on. Ffmpeg shows the following streams available from the camera: > > > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, > > 12 > > fps, 12 tbr, 90k tbn, 24 tbc > > > > Stream #0:0: Video: h264 (Main), yuv420p(progressive), 640x352, 12 > > fps, > > 12 tbr, 90k tbn, 24 tbc > > > > Perhaps it's not even necessary to recode the stream? > > Very likely, but what you're looking at there is the media format; you > also > need some sort of signalling protocol if you're going to call it from > Asterisk. > > I would start with something like > https://www.voip-info.org/asterisk-config-musiconholdconf/ > https://www.voip-info.org/wiki/view/Asterisk+config+musiconhold.conf > (or any more up to date documentation if you can find it). > > I've never tried that with video, but given how the media negotiation > between > Asterisk and SIP devices is handled, I would expect it to work given > compatible codecs.Unfortunately, musiconhold.conf doesn't understand rtsp: #033[1;37mmoh_parse_options#033[0m: Playlist entries must be a URL or absolute path, 'rtsp://10.10.30.20/12' provided. Asterisk then ignores the configured music class when it's given like this in musiconhold.conf (and plays music from the default class instead): [test] mode=playlist entry=rtsp://10.10.30.20/12 So I guess that musiconhold may be limited to audio only. But who knows? What are the requirements for the URLs that can be used with the 'playlist' option in musiconhold.conf? It's generally possible to stream stuff to devices (like phones), like when using the Playback() dialplan application to stream audio. Is it somehow possible to stream audio from programs into channels from the dialplan or somewhere else without using musiconhold.conf? If that was possible, it might be possible to stream video instead. Does pjsip support video? [1] would indicate that it doesn't. However, that information seems to be over 8 years old :( [1]: https://wiki.asterisk.org/wiki/display/AST/Video+Telephony
On Thursday 24 September 2020 at 16:31:33, hw wrote:> Hi, > > is it possible to "call" an IP camera? I'm thinking about something like > bridging with a music stream, but instead of streaming audio, bridge with > the video stream from the camera.I'm curious - did you manage to get anywhere with this? Antony. -- It may not seem obvious, but (6 x 5 + 5) x 5 - 55 equals 5! Please reply to the list; please *don't* CC me.
On Sat, 2020-10-03 at 15:51 +0200, Antony Stone wrote:> On Thursday 24 September 2020 at 16:31:33, hw wrote: > > > Hi, > > > > is it possible to "call" an IP camera? I'm thinking about something like > > bridging with a music stream, but instead of streaming audio, bridge with > > the video stream from the camera. > > I'm curious - did you manage to get anywhere with this?Unfornuately not --- would be a cool featuere, though ...