| Summary: | Pausing MediaRecorder still continues to call ondataavailable at every timeslice event | ||||||
|---|---|---|---|---|---|---|---|
| Product: | WebKit | Reporter: | Daniel Cabrera <dannycabrera> | ||||
| Component: | Web Audio | Assignee: | youenn fablet <youennf> | ||||
| Status: | RESOLVED FIXED | ||||||
| Severity: | Normal | CC: | cdumez, eric.carlson, jer.noble, webkit-bug-importer, youennf | ||||
| Priority: | P2 | Keywords: | InRadar | ||||
| Version: | Safari 17 | ||||||
| Hardware: | iPhone / iPad | ||||||
| OS: | iOS 17 | ||||||
| Attachments: |
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Pull request: https://github.com/WebKit/WebKit/pull/18150 Committed 268433@main (849a8db62663): <https://commits.webkit.org/268433@main> Reviewed commits have been landed. Closing PR #18150 and removing active labels. |
Created attachment 467826 [details] Sample html/javascript to replicate issue When using MediaRecorder with a specified timeslice property, ondataavailable keeps getting called on every timeslice event, regardless if MediaRecorder has been paused. Have replicated this occurring on Safari for iOS 16 + 17 as well as on macOS Ventura 13.5.2 Safari version 16.6. Issue: The attached example has a timeslice of 5000 that is supplied on mediaRecorder.start(5000). When recording is started the mediaRecorder.ondataavailable event will fire every 5 seconds. Upon calling mediaRecorder.pause(), mediaRecorder.onpause event fires and mediaRecorder.requestData() is called which should result in mediaRecorder.ondataavailable triggering one more time and then stop/pause (this is the current behavior with other browsers). Safari iOS 16 + 17 continues to call mediaRecorder.ondataavailable at every timeslice event with the same blob even though mediaRecorder.pause() was called. Expected behavior: Upon calling mediaRecorder.pause(), mediaRecorder.ondataavailable should not continue to fire continuously. Replicating: 1. Launch index.html from attached zip 2. Tap the Record button 3. Record several seconds then tap the Pause button. 4. mediaRecorder.ondataavailable will continue to be called every 5 seconds. Added a debug div that will show the consolelog output on the screen and you'll notice ondataavailable... continue to get outputed every 5 seconds.