Bug 256445

Summary:	Cannot manipulate audio through video tag with MediaSource API and AudioContext.createMediaElementSource
Product:	WebKit	Reporter:	Ethan <ethanchong>
Component:	Web Audio	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	cdumez, eric.carlson, jer.noble, karlcow, webkit-bug-importer
Priority:	P2	Keywords:	BrowserCompat, InRadar
Version:	Safari 16
Hardware:	Unspecified
OS:	Unspecified

Description Ethan 2023-05-07 22:26:45 PDT

We are unable to manipulate audio with a video element through AudioContext.createMediaElementSource. The source of the video element is a MediaSource ObjectURL and the video is a fragmented mp4.

We are not experiencing the issue on other browsers. See fiddle: https://jsfiddle.net/86arek9q/2/

Please advise. 

Thank you,
Ethan

Comment 1 Radar WebKit Bug Importer 2023-05-14 22:27:18 PDT

<rdar://problem/109337659>

Comment 2 Ethan 2023-07-10 19:12:11 PDT

See this updated fiddle https://jsfiddle.net/xusfyqgo/3/.

You can see the audio visualisation on Chrome but not on Safari.