Bug 268550 – Unreliable availability of WebRTC verbose logs from Safari on Mac

• Status: RESOLVED
• Resolution: CONFIGURATION CHANGED
• Component: WebRTC

[Kaustav]

Created attachment 469651 [details]
sysdiagnose

WebRTC verbose logs are not available most of the time.

Steps to reproduce:
1. Open the following WebRTC sample page on Safari https://webrtc.github.io/samples/src/content/peerconnection/pc1/
2. Click on inspect element. Enable verbose logging in the Settings pane -> Console -> WebRTC Logging
3. Start a call from the opened WebRTC sample page
4. Open console app and click on "Start streaming". Filter by "category:webrtc"

Result:
Most of the times WebRTC verbose logs are not visible in the console app. After retrying the above steps multiple times, sometimes the logs are visible in console app.  

Expected result:
Webrtc verbose logs should be available in the console app every time.

Additional information:
I have attached the sysdiagnose file

[youenn fablet]

I think I was able to reproduce once the missing verbose logs, but I am not entirely sure and I was not able to reproduce twice.

[youenn fablet]

Looking at the sysdiagnose, I can see the logs:
2024-02-01 17:21:29.920630+0200 0x238710   Default   0x0                  92195  0 com.apple.WebKit.WebContent: (WebCore) [com.apple.WebKit:WebRTC] LibWebRTC message: (video_stream_encoder.cc:1906): EncodeVideoFrame posted 133999331955 ntp time 3915789689909

It is unclear to me whether those logs are for the failing case or not.
Can you check this by:
- reproducing the missing logs.
- taking sysdiagnose
- looking at sysdiagnose whether the missing logs are there

[Kaustav]

Thanks for checking. Yes, I can see the webrtc logs in sysdiagnose but not on the console app. Is there any setting to make the console app work also?

[Kaustav]

@youenn is there a way to enable WebRTC verbose logging through terminal or while starting Safari through a flag?

[youenn fablet]

<rdar://126206609>

[youenn fablet]

Discussed with MS folks and this is no longer reproducible, closing.