Failed to set remote video description send parameters on native IOS

Question

Here is sdpOffer:

offer

v=0

o=- 1514366952141741 1 IN IP4 hostx

s=Mountpoint 99

t=0 0

a=group:BUNDLE video

Answer 1

The problem comes from this line:

profile-level-id 420029

My solution is simply to replace the "420029" by "42e01f", then everything works just fine. The situation seems related to the RFC 6184 8.2.2. You can visit here for more details.