NEW228935
PCMU/PCMA audio fails to play 
https://bugs.webkit.org/show_bug.cgi?id=228935
Summary PCMU/PCMA audio fails to play
Jay Charles
Reported 2021-08-09 17:35:25 PDT
Prior to iOS 14.7, our tracks with PCMU and PCMA audio worked fine. As of 14.7 we're finding that PCMU/A audio will not play correctly on iPhone or iPad. In most cases playback never begins, in some cases playback will start and then stop after about half a second. In the same test case changing only the audio codec to Opus, audio plays as expected every time.
Attachments
Add attachment proposed patch, testcase, etc.
Jay Charles
Comment 1 2021-08-09 18:09:38 PDT
FWIW, I've also found that backgrounding the browser app and then bringing it out of background will result in another fraction of a second of audio playback, then stops again.
youenn fablet
Comment 2 2021-08-10 02:04:31 PDT
Hi Jay, I'll check this further tonight. Can you confirm whether https://webrtc.github.io/samples/src/content/peerconnection/audio/ is working or not for you? If you have MacOS, can you repro the issue there as well?
Radar WebKit Bug Importer
Comment 3 2021-08-10 02:05:17 PDT
<rdar://problem/81733876>
Jay Charles
Comment 4 2021-08-10 06:47:16 PDT
(In reply to youenn fablet from comment #2) > Hi Jay, > I'll check this further tonight. > Can you confirm whether > https://webrtc.github.io/samples/src/content/peerconnection/audio/ is > working or not for you? > If you have MacOS, can you repro the issue there as well? Thanks Youenn. I can confirm that https://webrtc.github.io/samples/src/content/peerconnection/audio/ is working as expected for me on the same device that exhibits problems with my source. Unfortunately I am not equipped to test MAcOS. I will set up a test case with my problem source (wowza streaming engine) and send info to you offlist a bit later today.
Note You need to log in before you can comment on or make changes to this bug.