[Freeswitch-users] h264 video call between endpoints with one end at bad resolution of 352x288

[António Silva]

Hi,

i found the issue for this problem, it was because the fmtp parameters 
weren't pass to the bleg when using late-negotiation, so the other end 
start sending the video at lower resolution.

I solve by exporting the first fmtp from the aleg to the bleg channel 
using the variable rtp_video_fmtp .


This issue it's supposed to be fixed in 
https://freeswitch.org/jira/browse/FS-5958 but is present in current 
master and 1.8 branch.

More info can be found in https://freeswitch.org/jira/browse/FS-11140.


On 11/07/2018 22:06, Michael Jerris wrote:
> sounds like you might be doing the option to mirror resolution
>
>
>> On Jun 28, 2018, at 9:07 AM, antonio via FreeSWITCH-users 
>> <freeswitch-users at lists.freeswitch.org 
>> <mailto:freeswitch-users at lists.freeswitch.org>> wrote:
>>
>>
>> *From: *antonio <asilva at wirelessmundi.com 
>> <mailto:asilva at wirelessmundi.com>>
>> *Subject: **h264 video call between endpoints with one end at bad 
>> resolution of 352x288*
>> *Date: *June 26, 2018 at 6:05:20 AM EDT
>> *To: *freeswitch-users at lists.freeswitch.org 
>> <mailto:freeswitch-users at lists.freeswitch.org>
>>
>>
>> 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
António Silva

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