There are currently a number of issues in aurora and beta when it comes to Windows: - bug 1268719, an OOM crash - bug 1307724 an issue with stereo microphones - bug 1295193, bug 1300650, two issues related to setups that have different input and output sample rate We'd like to uplift those fixes, ideally to beta. It's simple changes, that have baked on nightly for some time now.

Approval Request Comment [Feature/regressing bug #]: See first comment [User impact if declined]: OOM crash, audio glitches, audio drift, depending on the user hardware and the system configuration. [Describe test coverage new/current, TreeHerder]: This is related to specific user hardware that we don't have in automation. [Risks and why]: This has baked on nightly for some time, confirming that it's fixed with alice and loic (QA volunteer) and several people from the webrtc team. [String/UUID change made/needed]: none

[Tracking Requested - why for this release]: See Paul's initial description of this bug for details: https://bugzilla.mozilla.org/show_bug.cgi?id=1310206#c0 . We need to either pref off full duplex for Windows in Beta or uplift the patch on this bug to Beta.

Comment on attachment 8801111 [details] [diff] [review] Patch Full duplex audio is planned for 50, patch has been verified by a few users, Aurora51+, Beta50+

has problems landed on aurora adding 1310206 to series file renamed 1310206 -> file_1310206.txt applying file_1310206.txt patching file media/libcubeb/src/cubeb_resampler.cpp Hunk #2 FAILED at 149 1 out of 2 hunks FAILED -- saving rejects to file media/libcubeb/src/cubeb_resampler.cpp.rej patching file media/libcubeb/src/cubeb_wasapi.cpp Hunk #4 FAILED at 739 Hunk #5 FAILED at 1016 2 out of 5 hunks FAILED -- saving rejects to file media/libcubeb/src/cubeb_wasapi.cpp.rej patch failed, unable to continue (try -v) patch failed, rejects left in working directory errors during apply, please fix and qrefresh file_1310206.txt

This is the patch rebased from aurora, it's just removing some changes that were already on aurora.

Sorry about that, I didn't remember we had some code on aurora already.

Jesup landed this. https://hg.mozilla.org/releases/mozilla-aurora/rev/483691f061bd94dc9398e4d660579aa9d5e313a3 https://hg.mozilla.org/releases/mozilla-beta/rev/fa324ad9a0cb9bc27a2509aef5d220ae46338b8d

This was done without updating update.sh and adding patches to apply, making further uplifts risky than necessary. We need to do better than this.

Ritu, we need to back this out from beta. Reports are coming in that specific hardware trigger an issue with this patch in at least bug 1309694 and bug 1312056. We have preffed off duplex on windows for this cycle, so it's not as important anymore.

(In reply to Paul Adenot (:padenot) from comment #9) > Ritu, we need to back this out from beta. Reports are coming in that > specific hardware trigger an issue with this patch in at least bug 1309694 > and bug 1312056. We have preffed off duplex on windows for this cycle, so > it's not as important anymore. Sounds good. I am glad we are monitoring the regressions and happy to take the backout in 50.0b10.