Bug 217860
| Summary: | 5.1 audio received over WebRTC is downmixed to stereo | ||
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| Product: | WebKit | Reporter: | Justin Uberti <juberti> |
| Component: | WebRTC | Assignee: | Nobody <webkit-unassigned> |
| Status: | NEW | ||
| Severity: | Normal | CC: | eric.carlson, webkit-bug-importer, youennf |
| Priority: | P2 | Keywords: | InRadar |
| Version: | Safari Technology Preview | ||
| Hardware: | Mac | ||
| OS: | macOS 10.15 | ||
Justin Uberti
When receiving 5.1 channel Opus content over WebRTC, all channels are received and decoded but downmixed to stereo, even when a 5.1-compatible sound card is connected.
<audio/> tags, on the other hand, do render 5.1 content properly, e.g., https://www2.iis.fraunhofer.de/AAC/multichannel.html.
This suggests that somewhere along the line a mixer is not being initialized with the right number of channels. I looked through the playout path and didn't see anything obvious, but I didn't investigate closely.
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| Add attachment proposed patch, testcase, etc. |
Radar WebKit Bug Importer
<rdar://problem/70408614>