[qt/qt/qtmultimedia]: Summary of bulk changes made

Git repository change summary for qt/qt/qtmultimedia
Pushed by mirror-service into branch '6.12'.
Changed from d9c38cc33643603a1cdf5865113d7a891ac8054d to aa97e761e6141587a49dd2b0ac839e81a6d568fb
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit 117982470702ac6953811d8302e3762faa1af8ed by Qt Cherry-pick Bot (on behalf of Lorn Potter) on 05/08/2026 at 08:28..
wasm: fix stereo output collapsing to the left channel

The AudioWorkletNode option is outputChannelCount, not
outputChannelCounts. The misspelled option was ignored, and with
numberOfInputs zero the node's output defaults to a single channel, so
the processor only ever wrote the left channel of a stereo stream.

Change-Id: Ia99b3f8dd4083b93efea20d85cefdccbd783160e
Reviewed-by: Tim Blechmann <[email protected]>
(cherry picked from commit 66b6f4201737d38cf4778f63c88d0a4587c51d14)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtmultimedia/-/commit/117982470702ac6953811d8302e3762faa1af8ed

Git commit aa97e761e6141587a49dd2b0ac839e81a6d568fb by Qt Cherry-pick Bot (on behalf of Tim Blechmann) on 05/08/2026 at 10:08..
WASM: avoid const-cast

QCameraDevicePrivate::handle has a non-const overload now. so there's no
need to const_cast.

Change-Id: I84cac6fbb63b5292ed9fd4261a3f2c11bd7ef8d3
Reviewed-by: Tim Blechmann <[email protected]>
Reviewed-by: Mikko Hallamaa <[email protected]>
(cherry picked from commit 82dd03fe1697322f6dac0918c8ce156b8a9868e3)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtmultimedia/-/commit/aa97e761e6141587a49dd2b0ac839e81a6d568fb