Fix for an issue found where new "Latency" and "Subjective Video
Enhancement" options where always using default settings even after
being changed in UI. This issue was introduced when mapping old QSV
settings to new ones.

win-capture: Make Vulkan frame data local to queue

Prevents multiple queues in the same family from racing on frame data.

Removal of vk_family_data also fixes broken capacity calculation. Two
queue families can share the same index if one is "protected-capable"
and the other isn't.

win-capture: Improve Vulkan hook stability

UI/CI/rtmp-services: Remove Mixer

Make fixes mostly to stabilize CTS. Tested on Windows with RTX 2080 Ti.

Use separate linked-list maps for devices and queues.

Process queues upfront in OBS_CreateDevice, and not lazily in
OBS_GetDeviceQueue.

Handle failed node allocation for OBS_CreateInstance, OBS_CreateDevice,
and OBS_CreateSwapchainKHR.

Handle VK_NULL_HANDLE for OBS_DestroySurfaceKHR and
OBS_DestroySwapchainKHR.

Add temporary code path CTS_WORKAROUND to deal with CTS sharing surfaces
between instances.

Fix return value for OBS_DestroyInstance.

Add missing _freea calls, required for _malloca.

Make sure the queue passed to OBS_QueuePresentKHR supports transfer to
safely call vkCmdCopyImage.

Update GetInstanceProcAddr/GetDeviceProcAddr to conform closer to spec.

Remove extra macros because I dislike indirection more than verbosity.

The OBSContext never called obs_startup but would always call
obs_shutdown in its destructor, resulting in shutdown calls even if
libobs wasn't initialized (eg due to a startup error). Instead, we now
track if libobs was initialized in OBSApp and call shutdown in the
destructor.

CI: Disable Python on macOS

Follow-up to 63373a8f
and 2c60aa2a (PR #3203).

CI: Disable Python for Mac PR automation

Fixes a bug where playback would completely stop when manually seeking
to the end of the file. Playback should not officially stop until
playback has unpaused.

deps/media-playback: Preload video when seeking paused

The filter name is supposed to be "OBS Virtual Camera"

win-dshow: Fix virtual camera enable bug

UI: Use non-native file dialog w/ Linux

More FFmpeg cleanup

UI: Fix warning about missing override

Attempt to simply shutdown sequence to avoid race between vidoe and
write threads. Can no longer join on write thread from write thread.

Also use codecpar instead of deprecated codec member.

FFmpeg deprecation warnings

UI: Add flag/file to disable built-in updater

When distributing OBS via third party platforms that have their own
update systems we want to be able to disable the OBS updater without
having to resort to having a separate build entirely.

frontend-tools: Make links in script description clickable

win-capture: Remove fixed-size Vulkan arrays

coreaudio-encoder: Fix encoding of 4.0 speaker layout