Bug 227388

Summary:	createMediaElementSource is not working with an HLS Stream with FPS DRM protection
Product:	WebKit	Reporter:	paulineh
Component:	Web Audio	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	cdumez, jer.noble, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari 14
Hardware:	Unspecified
OS:	All

Description paulineh 2021-06-25 02:06:47 PDT

Hello !

I'm trying to use WebAudio API on top of a video element. The src is an HLS stream protected with FPS DRM.

We use a script to modulate the volume of the left and right channels. The script works fine on chrome but not on Safari (mac & ios) or in a webview. We can hear the audio stream but we can't change the volume of either channel. It seems that the web audi API has no effect.

I found this issue that seems to report the same problem : https://bugs.webkit.org/show_bug.cgi?id=180696. It's kind of old, but I can't find out if it has been resolved or not.


Thank you for your time ! 

Pauline

Comment 1 Radar WebKit Bug Importer 2021-07-02 02:07:27 PDT

<rdar://problem/80072828>