How to support other H264 profile levels

[idoodler]

First of all thx for the great project,

I am having issues receiving a H264 encoded Video stream.

The WebRTC counter part which serves the H264 encoded Video uses an Hardware encoder which is capable of serving the stream with profile-level-id 42e01f, but the SDP offer only contains the following 640c2a and 42e02a.

As I understand 42e02a is (among other things) the level 4.2 which should include a 1280x720 / 145.

What I don't quite understand is why the SDP offer not contains 42e01f so the level 3.1 which is the correct one (1280x720 / 30).

The SDP comes right from the WebRTC.xcframework which basically wraps around Googles WebRTC library.

I already check the source code of the library but I only saw an option to enable VP9, but no other profile-level-id?

Can someone help me in the right direction?

[idoodler]

My College finally figured out why there is a problem.

It had nothing to do with the profile-level-id, but with the packetization-mode. There was a mismatch in the SDP answer.

[hthetiot]

Thank you :)

[hthetiot]

Did you use version 6.x or master ?
6.x use WebRTC m69 while master use m89

[hthetiot]

Codec are enabled here for reference:

cordova-plugin-iosrtc/src/iosrtcPlugin.swift

Line 66 in c4f0217

private func getSupportedVideoEncoder(factory: RTCDefaultVideoEncoderFactory) -> RTCVideoCodecInfo {

[idoodler]

Did you use version 6.x or master ?

6.x use WebRTC m69 while master use m89

I used the master branch, so m89