[Freeswitch-users] No video in echo with H264

[Faisal Hanif]

Hi Geeks,

When I join a call to echo application with H264 as video codec there is no
video sent back from FreeSWITCH while with VP8 it sends video.
I am using Linphone on iPhone 6 as SIP client
I am using FreeSWITCH Version 1.8.4+git~20181227T011058Z~749a6e108b~64bit
(git 749a6e1 2018-12-27 01:10:58Z 64bit) on Debian Release 9.6 stretch.

mod_h26x is enabled and and it show it loaded,

freeswitch at Dev-Togee-media-fra-16> module_exists mod_h26x
true

it enabled as only video codec in var.xml,

<X-PRE-PROCESS cmd="set" data="global_codec_prefs=OPUS,PCMU,PCMA,H264"/>
<X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=OPUS,PCMU,PCMA,H264"/>

Linphone client send H264 in SDP offer,

   v=0
   o=USR1001 3576 2398 IN IP4 10.0.0.106
   s=Talk
   c=IN IP4 10.0.0.106
   t=0 0
   a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
   m=audio 7212 RTP/AVP 96 0 8 101 97
   a=rtpmap:96 opus/48000/2
   a=fmtp:96 useinbandfec=1
   a=rtpmap:101 telephone-event/48000
   a=rtpmap:97 telephone-event/8000
   a=rtcp-fb:* trr-int 1000
   a=rtcp-fb:* ccm tmmbr
   m=video 9236 RTP/AVP 96
   a=rtpmap:96 H264/90000
   a=fmtp:96 profile-level-id=42801F
   a=rtcp-fb:* trr-int 1000
   a=rtcp-fb:* ccm tmmbr
   a=rtcp-fb:96 nack pli
   a=rtcp-fb:96 ccm fir


but FreeSWITCH replies SDP without video ,

   v=0
   o=FreeSWITCH 1554713996 1554713997 IN IP4 178.33.144.18
   s=FreeSWITCH
   c=IN IP4 178.33.144.18
   t=0 0
   m=audio 754 RTP/AVP 96 101
   a=rtpmap:96 opus/48000/2
   a=fmtp:96 useinbandfec=1
   a=rtpmap:101 telephone-event/48000
   a=fmtp:101 0-16
   a=ptime:20
   m=video 0 RTP/AVP 19

It is really strange behavior, I really appreciate any suggestion and help
on it.

Regards,

Faisal
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