Major A/V (Playback & Rendering) Improvements

Significant A/V performance and stability upgrades resulting in no tearing, fewer dropped frames (even on high refresh rates) and no audio crackling.

Core Changes

• Switched from DXGI swapchain to DirectComposition (DComp) with WS_EX_NOREDIRECTIONBITMAP, bypassing the WPF/WinForms/WinUI rendering pipeline and rendering directly to the DWM compositor
  ✅ Eliminates GPU→CPU copies, frame drops, and UI freezes

• Re-implemented high-performance rendering loops (for both Playback and Idle modes)
  ✅ Calls to ResizeBuffers and SetViewPort occur only when necessary
  ✅ Avoids locking and improves frame throughput

• Re-implemented A/V Playback (Screamer)
  ✅ Fully separated A/V threads to prevent desync and delay issues
  ✅ Decoupled Render/Draw from Present, giving the GPU more time per frame for smooth playback

Changelog

• Renderer.Device: Improves creation implementation
• Renderer.Swapchain: Switches to DirectComposition (DComp)
• Renderer.Swapchain: Gets dynamically the GPU output from the adapter during creation
• Renderer.Swapchain: Fixes support for RGBA (instead of BGRA) and might perform even better (currently not default as causes critical issues with Super Resolution - see Config.Video.SwapForceR8G8B8A8)
• Renderer.Present: Re-implementation with new rendering loops for playback and idle modes with VSync-Wait mode (deprecates DoNotWait)
• Renderer.Present: Separates rendering and presenting for playback to achieve less dropped frames
• Renderer.D3D11VP: Fixes an issue with Super Resolution during Rotation
• Renderer.D3D11VP: Fixes issues with DeInterlace (separates Bob for double rate with Weave/Blend for normal rate)
• Player.Screamer: New AVSD implementation which separates A/V threads with less dropped frames, less audio crackling and better A/V sync
• Player.Stats: Real-time accurate frame statistics from DWM
• AudioDecoder: Workaround with Circular Buffer that could cause unexpected results during re-allocation
• VideoDecoder: Fixes issues with extra frames (+1 required for renderer and handle max allowed by the system)
• VideoStream: Better handling of Fps (could cause issues with interlace and formats that announce huge wrong numbers)
• Demuxer: Fixes an issue with IsHLSLive falsely set to true
• Demuxer: Fixes an issue with backwards seeking that it would return forward packets from cache
• Config.Video: Introduces DoubleRate for DeInterlace (forces D3D11VP to use Bob instead of Weave/Blend)
• FlyleafME.Settings.Video: Adds DoubleRate for DeInterlace

Breaking Changes

• Config.Video: Defaults VSync to 1 to avoid tearing
• Config.Video: Deprecates PresentFlags (no support for DoNotWait - no reason)
• Config.Player: Deprecates IdleFps
• Config.Player: Renames UICurTimePerFrame to UICurTime
• Config.Decoder: Defaults AllowProfileMismatch to true
• Engine.Config: Deprecates UICurTimePerSecond (use Config.Player.UICurTime instead)
• Engine.Config: Defaults UIRefresh to true (for proper UI updates/refreshes)
• Engine.Video: Deprecates Screens and RecommendedLuminance (use GPUAdapter.GetGPUOutputs instead)
• Engine.Video: Separates GPUOutput from GPUAdapter
• Renderer/FlyleafHost.Wpf: Deprecates replica/child (might re-include it in the future)

Package Contains (x64)

FlyleafPlayer _{Pop-up on first run is to add itself to windows firewall for proper yt-dlp and bitswarm playback}

Plugins

• OpenSubtitlesOrg
• SubtitlesConverter
• TorrentBitSwarm
• YoutubeDL

FFmpeg v8.0 (d8605a6)

• Patched for HLS issue
• Patched for .NET issue
• No encoders