h264 video call between endpoints with one end at bad resolution of 352x288

[antonio]

Hi,

Calling between two Grandstream GXV3275 i expected to have a video call 
at 1280x720, but the video that is present at destination as the 
resolution of 352x288 and the image as poor quality, originator is 
sending video at 1280×720.  If i swap the devices the result is the 
same, the destination always get a bad resolution of 352x288 but the 
originator receives the video at expected resolution of 1280x720.

If i set rtp_direct between the two endpoints it work as expected.

I also tested a conference room and force the it resolution to 1280*x720 
it work well,  if i don't force the canvas-size i see:

2018-06-26 13:55:02.077824 [WARNING] mod_conference.c:3157 Unspecified 
video-canvas-size, falling back to 1280x720

And the conference is done at 1280x720.


I've open a jira where you can find a full log with this behavior:

https://freeswitch.org/jira/browse/FS-11140


I don't understand why there is transcoding and mod_av is used, the 
codec negotiated is the same.. i understand that the resolution is at 
352x288 for the first frames sent by the phone but then it send them at 
1280x720,  mod_av should detected and adjust the new resolution, no?


Anyone experience this behavior?

-- 
Saludos / Regards / Cumprimentos
Anónio Silva