Changelog

• Engine.Logger: Adds File Rolling support [Thanks @coldays]
• Engine.Config: Introduces LogRollMaxFileSize and LogRollMaxFiles for the new File Rolling impelementation
• Demuxer: Fixes an issue with Data streams that would be falsely included as Misc/Invalid streams instead
• VideoDecoder: Stability and Performance improvements for Open/Setup implementation
• Renderer.VideoProcessor: Fixes an issue with cropping not refreshing the layout
• Player: Introduces OpeningVideoStream event which fires during VideoDecoder's codec open
• Player.Video: Codec now returns the actual codec's name in use by the decoder
• FlyleafHost.Wpf: Fixes an issue with MouseWheel event for attached hosts would fire twice causing Zoom and Rotation to not work properly
• Plugins.YoutubeDL: Attempt for few fixes (mainly for audio languages on youtube)
• Samples.FlyleafPlayer: Introduces GeneralConfig.AllowTransparency which enables transparency support

Breaking Changes

• Config.Decoder: Defaults AllowProfileMismatch back to false as it seems that it causes more issues than it resolves

Changelog

• Engine: Prevents enumeration of A/V capture devices during start to avoid delays
• VideoDecoder/VideoStream: Fixes an issue while FFmpeg announces 60.00x fps instead of 60fps that could cause video decoder to drop frames (based on Config.Video.MaxOutputFps limit)
• Player.ScreamerVASD: Adds an ~60 FPS idle renderer embedded during playback to provide smoother resize and filter updates when the source FPS or speed is low
• Player.Audio: Few stability improvements (mainly for non-analyzed inputs)

Breaking Changes

• Engine: A/V captures devices will require manual enumeration with Engine.Audio/Video.RefreshCapDevices() if needed
• Config.Decoder: Defaults MaxAudioFrames from 10 to 5 for better syncing, smooth speed changes and resolves possible issues with MaxLatency

Changelog

• Config.Decoder: Introduces AudioCodec/VideoCodec/SubtitlesCodec to allow forcing the codec
• Config.Decoder: Introduces AllowDropFrames which handles decoder's skip_frame and AV_CODEC_FLAG_LOW_DELAY/AV_CODEC_FLAG2_FAST for low latency
• Config.Decoder: Introduces KeyFrameValidation which ensures no artifacts on some broken formats
• VideoDecoder: Fixes a possible issue with frame drops (with network streams) at decoder level
• Renderer.Present: Fixes an issue with ClearScreen when forced
• Renderer.PixelShader: Switching from OMSetBlendState to custom PixelShader alpha blending to avoid double blend with transparency
• Player.CurTime: Improves seeking forward when it has a chance to find it in cache
• FlyleafHost.Wpf: Adds full transparency support for media with alpha channel (through VideoBackground and Config.Video.BackgroundColor)
• FlyleafHost.Wpf: Introduces VideoBackground for Surface's Background color (deprecates Config.Video.BackgroundColor for this purpose)
• Updates Vortice / MaterialDesignThemes / WindowsAppSDK

Changelog

• Adds .NET 10 support
• Renderer.SwapChain: Fixes an issue during initialization (could cause black screens and wrong aspect ratios during initialize/swap)
• Renderer.Present: Respects Config.Video.ClearScreen and avoids clearing the screen when not set
• Player: Fixes a crashing issue for Audio only

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

Changelog

• Player.ScreamerVASD: Fixes/Improves MaxLatency with the new implementation
• Player.ScreamerVASD: Simplifies/Improves GetBufferedDuration calculation
• Player.Screamers: Few Fixes/Improvements with the new implementation
• Renderer: Fixes a critical crash issue during initialization when handle/control has not been assigned yet
• Renderer.Present: Fixes possible issues with locks to ensure stability
• AudioFrame: Attaches speed on audio frame which handles better speed changes

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

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

Changelog

• Renderer: Fixes an issue with alpha channel (wrongly was blending RGB(0), also tries to support more formats)
• Renderer: Fixes an issue with negative linesize (use VFlip instead of 180 rotation)
• Renderer: Fixes an issue with viewport that could cause a half pixel off
• Renderer: Disables rendering when window is minimized
• Renderer.D3D11VP: Fixes a critical issue when window is minimized
• Renderer.D3D11VP: Adds Bitmap Subtitles support
• Renderer.D3D11VP: Adds Custom 2D Graphics support
• Renderer.D3D11VP: Improves Super Resolution (enable only when actually required)
• Player.Audio: Fixes an issue with Audio that it could cause crackling
• VideoDecoder: Handles broken formats with no key frame after key packet
• FlyleafHost.Wpf: Performance and Stability Improvements (DPI/Resize/Ratio)
• PlayerDebug.Wpf: Adds Super Resolution
• FlyleafME.Settings.Video: Merges Nvidia/Intel Super Resolution

Breaking Changes

• Config.Audio: Defaults FiltersEnabled to true (stable enough now)
• Config.Video: SuperResolutionNvidia and SuperResolutionIntel renamed/merged to SuperResolution
• GPUAdapter: Changes Vendor from string to GPUVendor enum
• Renderer: Defaults VideoProcessor to D3D11 (less power consumption)
• FlyleafHost.Wpf: Changes Is* (readonlys and ResizeSensitivity) Dependency Properties to Simple Properties

Package Contains (x64)

Samples

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

Plugins

• OpenSubtitlesOrg
• SubtitlesConverter
• TorrentBitSwarm
• YoutubeDL

FFmpeg v8.0 (d8605a6)

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

Changelog

• Engine: Adds FFmpeg v8.0 support (use Flyleaf.FFmpeg.Bindings v8.0 at your project)
• Config.Player: Introduces ZeroLatency
• Player.Screamer: Adds ZeroLatency support (Video Only)
• Player.Open: Prevents resync on Live inputs (non-seekable)
• VideoStream: Fixes TotalFrames
• PlayerDebug.Wpf: Minor Improvements
• Players.Stats: Minor Improvements
• FlyleafME: Updates Settings with Super Resolution and Zero Latency

Package Contains (x64)

Samples

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

Plugins

• OpenSubtitlesOrg
• SubtitlesConverter
• TorrentBitSwarm
• YoutubeDL

FFmpeg v8.0 (d8605a6)

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

Changelog

• Renderer.D3D11VP: Adds SuperResolution support (Nvidia/Intel)
• Renderer: Improves VideoProcessor selection based on input
• Config.Video: Introduces SuperResolutionNvidia and SuperResolutionIntel
• Player: Fixes a sync issue with Data streams [Thanks to @coldays]
• FlyleafHost.Wpf: Improves transition from normal to fullscreen
• FlyleafHost.Wpf: Introduces CloseCanceled to properly cancel the process when required
• FlyleafHost.Wpf: Fixes an issue when hiding and showing back a window which was out of screen bounds (invalid pos/size for windows)

Package Contains (x64)

Samples

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

Plugins

• OpenSubtitlesOrg
• SubtitlesConverter
• TorrentBitSwarm
• YoutubeDL

FFmpeg v8.0 (d8605a6)

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

Changelog

• Engine: Fixes possible issues with ObservableCollections and EnableCollectionSynchronization
• FlyleafHost.Wpf: Fixes an issue with KeepRatioOnResize (after crop DAR)
• VideoDecoder: Adds D3D11/AV1 FFmpeg bug workaround
• Samples.FlyleafPlayer: Fixes a lock issue with SlideShowGoTo
• Samples.FlyleafPlayer: Fixes a UI freeze issue with ctrl+w for closing

Breaking Changes

• Globals.AspectRatio: Changes floats to doubles

Package Contains

Compiled Libraries, Plugins & Samples

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