Add HLS streaming support on Windows#173
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kdroidFilter merged 6 commits intomasterfrom Mar 8, 2026
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…o device change - Fix washed-out video colors by setting alpha byte to 0xFF on RGB32 frames (MFVideoFormat_RGB32/X8R8G8B8 leaves the padding byte undefined) - Add thread-safe atomic access for instanceVolume and playbackSpeed - Fix WASAPI InitWASAPI cleanup to properly release COM objects on failure (#97) - Add audio format fallback: try native format first, fall back to 2ch/48kHz - Add DLL version check (GetNativeVersion) to detect JNA binding mismatches - Extract AcquireNextSample helper to eliminate ~120 lines of duplication - Add named constants for sync thresholds (replace magic numbers) - Fix division-by-zero guard for frame rate - Support WAVE_FORMAT_EXTENSIBLE and 24-bit PCM in volume scaling - Eagerly create audio device enumerator to avoid lazy-init race - Translate all French comments to English - Enhance GetVideoMetadata with title, bitrate, and extended MIME types
- Migrate from JNA to JNI with RegisterNatives for native bindings - Add SetOutputSize to scale decoder output to display surface size (saves ~500MB for 4K) - Fix playback clock desync: open media paused, start clock right before frame production - Fix resize race: keep isResizing flag until applyOutputScaling completes - Remove redundant SeekMedia(0) after OpenMedia - Remove unused sharedFrameBuffer allocation
- Recalibrate wall-clock on first decoded frame in AcquireNextSample, fixing HTTP/network sources where decode latency caused mass frame skipping (audio played but video was invisible) - Remove per-pixel alpha forcing loop in ReadVideoFrame (~8M ops/frame for 4K); Skia OPAQUE alpha type already handles this - Use tryLock for audio level polling to avoid blocking media operations - Remove unnecessary runBlocking wrapper and System.gc() calls
…ent Skia from using the alpha channel during compositing
…te handling - Remove redundant `LaunchedEffect` and simplify player state initialization - Add conditions to prevent unnecessary scaling during resize - Introduce resize timeout to avoid infinite waits - Ensure playback state is updated only when necessary
IMFSourceReader does not support HLS on desktop Win32 apps, so this adds a dual-path architecture: HLS URLs (.m3u8) use IMFMediaEngine which has native HLS support on Windows 10+, while all other media continues to use the existing IMFSourceReader path. Key changes: - New HLSPlayer class wrapping IMFMediaEngine with D3D11 frame extraction - Automatic HLS detection (URL pattern + fallback on source reader error) - Live stream handling (duration 0, seeking disabled, EOF retry) - Adaptive bitrate support (resolution re-queried per frame) - Audio handled internally by the engine (no WASAPI needed for HLS)
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Summary
IMFMediaEngine, sinceIMFSourceReaderdoes not support HLS on desktop Win32 appsIMFMediaEnginewith D3D11 frame extraction, all other media uses the existingIMFSourceReaderpathTest plan
https://demo.unified-streaming.com/k8s/features/stable/video/tears-of-steel/tears-of-steel.ism/.m3u8