Emulation fixes: - GB Serialize: Fix timing bug loading channel 4 timing - GBA: Fix multiboot entry point while skipping BIOS - GBA BIOS: Fix undefined instruction HLE behavior - GBA DMA: Fix invalid audio DMA parameters - GBA Memory: Misaligned SRAM writes are ignored - GBA Serialize: Fix serializing DMA transfer register - GBA Serialize: Fix audio DMA timing deserialization - GBA Video: Fix OAM not invalidating after reset - GBA Video: Fix backdrop blending on lines without sprites - GBA Video: Fix OpenGL sprite flag priority Other fixes: - Core: Fix race condition initializing thread proxy - Core: Fix integer overflow in ELF loading - FFmpeg: Fix crash when -strict -2 is needed for vcodec or container - FFmpeg: Disallow recording video with no audio nor video - GBA: Automatically skip BIOS for multiboot ROMs - Qt: Only dynamically reset video scale if a game is running - Qt: Fix race condition with proxied video events - Qt: Fix color selection in asset view - Qt: Fix missing OSD messages - Qt: Fix crash unloading shaders - Qt: Fix toggled actions on gamepads - Qt: Fix extraneous dialog - Qt: Fix window title not updating after shutting down game - Qt: Fix GIF view not allowing manual filename entry - Qt: Fix non-GB build - Qt: Fix pausing Qt Multimedia audio - Qt: Fix invalid names for modifier keys - SDL: Refresh stale pointers after adding a joystick - Util: Fix crash reading invalid ELFs - VFS: Fix handle leak when double-mapping Misc: - FFmpeg: Add more presets - Qt: Fix non-SDL build - SDL: Use DirectSound audio driver by default on Windows - Switch: Make OpenGL scale adjustable while running