Video rotated by 90 degrees - iOS native - Kurento

[MichaelSiddi]

Hi,
I'm using Kurento 6.6.1 with the r56 revision of the native WebRTC iOS code and I'm facing a video orientation issue.
My setup is:
[iOS-A] <--> WebRtcEndpoint(a) <--> WebRtcEndpoint(b) <--> [iOS-B].

The video stream received by iOS-B is rotated by 90 degrees. This do not happen when the two iOS devices go peer-to-peer.

The problem could be related to the fact that iOS-A sends the RTP packets with a header that follows the urn:3gpp:video-orientation extension but it looks like the orientation header is stripped by Kurento when the RTP packets are forwarded to iOS-B.

Should Kurento retain the RTP header extensions from the original packets to the new ones it creates?

Thank you.

KMS Version:
Version: 6.6.1
Found modules:
Module: 'core' version '6.6.1'
Module: 'elements' version '6.6.1'
Module: 'filters' version '6.6.1'

[j1elo]

iOS Safari earlier than 13.0 had bugs related to the rotation. Info in this issue: #484