1570077 - Crash when turning off the default microphone during a WebRTC meeting

Status: RESOLVED FIXED

(Core :: Audio/Video: cubeb, defect, P2)

Description

[C.M.Chang[:chunmin]]

Problem

Step to reproduce

1. Connect your Bluetooth microphone to the mac OS
2. Set it to the default input device
3. Open Firefox Nightly
4. Open about:config
5. Create a "media.cubeb.backend" pref and set it to "audiounit-rust" in about:config
   • Optional: set "media.cubeb.logging_level" to "verbose" to see the log
6. Open WebRTC meeting room (e.g., https://appear.in/)
7. Disconnect your Bluetooth microphone to the mac OS during the WebRTC meeting

Expected Result

The WebRTC continue working after disconnecting the Bluetooth microphone

Actual Result

Get a crash

Crash LOG

[Child 18834: Unnamed thread 0x18eeb4ff0]: E/cubeb media/libcubeb/cubeb-coreaudio-rs/src/backend/mod.rs:673: (0x18cd52800) Device switching, pushed 512 frames of input silence.
Assertion failed: (out_len == output_frame_count), function output, file /Users/cchang/Work/gecko/media/libcubeb/src/cubeb_resampler_internal.h, line 257.

Comment 1

[C.M.Chang[:chunmin]]

Attachment: Bug 1570446 - P2: Update cubeb-coreaudio-rs to version 7a25242. r?padenot

Comment 2

[Phabricator Automation]

Comment on attachment 9081803 [details]
Bug 1570446 - P2: Update cubeb-coreaudio-rs to version 7a25242. r?padenot

Revision D39979 was moved to bug 1570446. Setting attachment 9081803 [details] to obsolete.

Comment 3

[C.M.Chang[:chunmin]]

The fix is reviewed and merged in https://github.com/ChunMinChang/cubeb-coreaudio-rs/pull/3
The changes will be imported by bug 1570446.