[Freeswitch-users] Video with mod_conference

[Michael Jerris]

These features are significantly better in the upcoming 1.6 version.  Keep an eye out for upcoming announcements on that.  I would not expect the video features to be very stable in 1.4 except for point to point passthrough with no transcoding.


> On Apr 9, 2015, at 11:30 AM, Adam Ben-Ayoun <adam.ben.ayoun1 at gmail.com> wrote:
> 
> Hi guys,
> 
> I am experimenting with mod_conference and video, I have a conference (not in video-bridge mode), I am connecting with 2 clients using SIPjs, my goal is to have video from client1 to client2.
> 
> Here is what I'v tried:
> Assume client1 is the broadcaster while client2 is the receiver. Client1 connects to the conference first, he is floor at this point:
> freeswitch at internal> conference list
> Conference 1234-172.30.3.212 (2 members rate: 16000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)
> 1;sofia/internal/anonymous.2po4ni at anonymous.invalid;7c8e7494-decc-11e4-93cd-2391a0614a29;anonymous.2po4ni;anonymous.2po4ni;video|floor;0;0;0;0
> 
> Now, client2 joins in, as expected, client1 is still floor:
> freeswitch at internal> conference list
> Conference 1234-172.30.3.212 (2 members rate: 16000 flags: running|answered|enforce_min|dynamic|exit_sound|enter_sound)
> 2;sofia/internal/anonymous.hgbmm4 at anonymous.invalid;80a2f38e-decc-11e4-93d3-2391a0614a29;anonymous.hgbmm4;anonymous.hgbmm4;video;0;0;0;0
> 1;sofia/internal/anonymous.2po4ni at anonymous.invalid;7c8e7494-decc-11e4-93cd-2391a0614a29;anonymous.2po4ni;anonymous.2po4ni;video|floor;0;0;0;0
> 
> No video goes through to client2. Now, if I am setting client2 as floor and then setting back client1 as floor, video start to come in.. And just before the video starts, the log shows that client2's video DTLS handshake becomes READY:
> 2015-04-09 15:24:40.391590 [DEBUG] switch_core_media.c:4361 sofia/internal/anonymous.2po4ni at anonymous.invalid Video thread resumed  Echo is off
> 2015-04-09 15:24:41.851825 [INFO] switch_rtp.c:2923 Changing video DTLS state from HANDSHAKE to SETUP
> 2015-04-09 15:24:41.851825 [INFO] switch_rtp.c:2831 video Fingerprint Verified.
> 2015-04-09 15:24:41.851825 [INFO] switch_rtp.c:3373 Activating Video Secure RTP SEND
> 2015-04-09 15:24:41.851825 [INFO] switch_rtp.c:3351 Activating Video Secure RTP RECV
> 2015-04-09 15:24:41.851825 [INFO] switch_rtp.c:2871 Changing video DTLS state from SETUP to READY
> 
> In addition, even before doing the floor toggle to get the video going, I see mod_conference's video thread doing: switch_core_session_write_video_frame(imember->session, vid_frame, SWITCH_IO_FLAG_NONE, 0); on line 2991.
> 
> Something in the video thread seems to delay/lock the video DTLS handshake....
> 
> Any idea?
> 
> Thanks!
> Adam