OBS Studio 30.1 RC1

NOTE: This beta is **NOT** the Twitch Enhanced Broadcasting Beta. This beta does not include those features.
For more information on Twitch Enhanced Broadcasting, please see their announcement:
https://blog.twitch.tv/en/2024/01/08/introducing-the-enhanced-broadcasting-beta/

Note: NVIDIA users may need to update their GPU drivers to 531.61 or newer.

RC1 Changes
-----------

* Fixed a crash in Beta 1-3 when streaming with SRT [pkviet/RytoEX]
* Fixed an issue in Beta 1-3 where settings would not save correctly under certain circumstances when changing services [pkviet/RytoEX]
* Fixed an issue in Beta 1-3 where the Source Toolbar would not update after deleting a scene item [cg2121]
* Fixed an issue in Beta 1-3 on macOS with not being able to select an appropriate frame rate on some camera/capture devices [PatTheMav]
* Fixed an issue with Beta 3 not being published on Flathub [tytan652]

Beta 3 Changes
--------------

* Fixed a crash in Beta 1 and 2 on macOS when starting OBS with a device that has more than 8 audio channels [PatTheMav]
* Fixed a crash in Beta 1 and 2 on macOS when reconnecting an audio device that had channel mapping configured [PatTheMav]
* Fixed a crash in Beta 1 and 2 on macOS when encoding with AOM [PatTheMav/RytoEX]
* Fixed possible crashes in Beta 1 and 2 in third-party plugins [exeldro/Lain-B]
* Fixed several possible crashes in Beta 1 and 2 on macOS when trying to add a Capture Card Device or Video Capture Device source [PatTheMav]
* Fixed an issue in Beta 1 and 2 having a memory leak with the "Capture Audio (BETA)" option in the Game Capture source [derrod]
* Fixed an issue in Beta 1 and 2 with the "Capture Audio (BETA)" option in the Game Capture source not disabling the application audio capture when the game capture was deactivated [derrod]
* Fixed an issue in Beta 1 and 2 with the tooltip for the "Capture Audio (BETA)" option in the Game Capture source being too long [shiina424]
* Fixed an issue in Beta 1 and 2 with Capture Card Device source on macOS not working due to incompatible settings on device initialization [PatTheMav]
* Fixed an issue with Beta 1 and 2 not being published on Flathub [GeorgesStavracas]
* Fixed a regression causing a missing tooltip for Fragmented MOV/MP4 [shiina424]
* Fixed an issue with the background of audio meters being transparent causing visual artifacts [fzwoch]
* Fixed an issue with Yes/No buttons on the Reset Docks confirmation message box not being translated [shiina424]
* Fixed an issue preventing the Remux dialog from being used multiple times [RytoEX]

Beta 2 Changes
--------------

* Fixed a crash in Beta 1 in the new Image Slideshow source when clicking the Randomize button with no files loaded [flaeri]
* Fixed a possible crash in Lua scripts when switching scene collections [exeldro]
* Fixed crashes with the Virtual Camera on Windows when apps consumed it as YUY2 [vico-shang]
* Fixed an issue in Beta 1 where Twitch VOD track did not work in Advanced Output [pkviet]
* Fixed an issue in Beta 1 where AMF encoded videos did not work correctly in DaVinci Resolve [lucenticus]
* Fixed an issue in Beta 1 where QSV on Linux could fail on systems with multiple GPUs [kkartaltepe]
* Fixed an issue in Beta 1 where QSV on Linux would fail due to attempting to use the unimplemented texture encoder [kkartaltepe]
* Fixed an issue in Beta 1 where the FFmpeg VAAPI encoder could hang on Intel [kkartaltepe]
* Fixed an issue with free disk space calculation on ExFAT and FAT32 volumes on macOS [PatTheMav]
* Fixed an issue with free disk space calculation on macOS not matching values in Finder [jcm]
* Fixed an issue where a removed source's scene would not be correctly logged [exeldro]
* Clarified the macOS microphone permissions prompt [jcm]

30.1 New Features
-----------------

* Enabled HDR for HEVC over RTMP [nquah]
* Reworked the Image Slideshow source [Lain-B]
  + The reworked Image Slideshow source loads files asynchronously and fixes an issue where the slideshow would loop before showing all images. To change existing Image Slideshow sources to the new version, you must recreate them. Existing Image Slideshow sources will continue functioning as before.
* Added Capture Audio option to window/game capture on Windows [derrod]
* Added Premultiplied Alpha option for game capture on Windows [jpark37]
* Added option for automatic cropping to bounding box [derrod]
* Added maxRGB tonemapper for SDR in HDR Tone Mapping filter [jpark37]
* Added GPU rescaling options for streaming and recording outputs [derrod]
* Added channel selection for CoreAudio input devices [PatTheMav]
* Added Capture Card Device source type on macOS [PatTheMav]
* Enabled multi-track audio support for mpegts [pkviet]
* Added AV1 support for VA-API [nowrep]
* Added AV1 support for WebRTC/WHIP output [Sean-Der]
* Added Video Capture Device (PipeWire) source type [GeorgesStavracas]

30.1 Changes
------------

* Added HDR support for the Elgato HD60 X Rev.2 [FBirth]
* Added theme data search paths [derrod]
* Added Lua script location to search path for Lua native libraries [Smartkin]
* Added Python 3.11 support for macOS [PatTheMav]
* Updated obs-websocket to version 5.4.0 [tt2468]
  + Release notes are here: https://github.com/obsproject/obs-websocket/releases/tag/5.4.0
* Improved simple mode replay buffer settings [gxalpha]
* Switched to bigger units in the UI for high bitrate/large recordings [derrod]
* Disabled Paste Transform on locked scene items [cg2121]
* Disabled Edit Transform if scene item is locked [cg2121]
* Removed Windows 7 and Ubuntu 20.04 NVENC fallbacks [derrod]
* PCM audio in (fragmented) MP4/MOV is now supported [derrod]

30.1 Bug Fixes
--------------

* Fixed crash when loading Python at runtime on Windows [PatTheMav]
* Fixed crash in Image Slideshow when adding a directory with no files in it [notr1ch]
* Fixed crash on macOS when attempting to stream to a WHIP servers with certain configurations [RytoEX/Sean-Der]
* Fixed crash when trying to stream with WebRTC/WHIP [CrackThrough]
* Fixed deadlock when adding a macOS Screen Capture source [PatTheMav]
* Fixed issue where OBS could be closed by docked browser panels [WizardCM]
* Fixed high CPU usage with Virtual Camera on macOS [jcm93]
* Fixed checkbox misalignment on macOS in properties view [nikola3211]
* Fixed audio track 1 audio being offset/desynced with other tracks [derrod]
* Fixed incorrect VST window size on HiDPI display [xlinshan]
* Fixed editable list UI element having incorrect background-color [tuduweb]
* Fixed the resize cursor with respecting the item transformation [BGM99]
* Fixed disk space reporting for attached network drives on macOS [PatTheMav]
* Fixed Safe Mode removing third-party transitions from scene collection [derrod]
* Fixed being unable to use QSV in the Flatpak package [twelho]
* Fixed audio track titles not being set in Custom FFmpeg Output [tuduweb]