release 0.6.0

- D3D11 Renderer: now has almost the same features as OpenGL renderer
    - HDR tone mapping support
    - Support UWP. `ICoreWindow` or `ISwapchainPanel` can be used as the surface of `Player.updateNativeSurface()`
    - Zero copy rendering for hardware decoders, including d3d11, dxva2 and cuda based decoders.
    - Add env vars "SWAPCHAIN_BUFFERS", "DXGI_ADAPTER_RENDER" and "GPU_DEBUG" to control swap chain buffers adapter index and debug layer
    - Support feature level 9.1~12.1(default), controlled by env "D3D_FEATURE_LEVEL_RENDER"
    - Save and restore pipeline states before and after rendering
    - Support foreign context provided by user via `Player.setRenderAPI()`, `D3D11RenderAPI.context` and `D3D11RenderAPI.rtv` must be provided
    - Remove restriction of calling `Player.setRenderAPI()` before any other apis have `vo_opaque` parameter. `updateNativeSurface()` still have to be called after `setRenderAPI()`
    - Support more pixel formats, including nv12, p010 etc. Packed formats with 3 channels are not supported by d3d11 without cpu convertion, leaves them as unsupported.
- MFT: decoder device feature level can be set by property "feature_level"
- Reduce cpu load on pause
- Range loop: fix seek to A failure
- macOS:
    - Fix ui apis called on non-ui thread when creating CGL context(crash on macOS 10.15+)
    - Weak link to libffmpeg.4.dylib because macOS 10.15+ disallow dlopen. also can be replaced by user provided ffmpeg libraries(avutil, avcodec etc.) at runtime via `SetGlobalOption("avutil", (void*)handle)`
- FFmpeg:
    - Set ffmpeg module handle via `SetGlobalOption("name", (void*)handle)`, where name is avutil, avcodec, avformat etc.
    - Fix crash if custom ffmpeg libraries are not complete. Required modules are "avutil", "avformat", "avcodec"
    - D3D11 decoder improve
    - Fix VAAPI seek crash cause by wrong ref count

README.md

@@ -2,14 +2,16 @@
 
 [Nightly Build SDK](https://sourceforge.net/projects/mdk-sdk/files/nightly/)
 
-Install via [NuGet](https://www.nuget.org/packages/mdk) in Visual Studio
+Install via [NuGet](https://www.nuget.org/packages/mdk) in Visual Studio for both Windows desktop and UWP
+
+[Changelog](https://github.com/wang-bin/mdk-sdk/blob/master/Changelog.md)
 
 ## Features
 - Simple and powerful API set
 - Cross platform: Windows, UWP, Linux, macOS, Android, iOS, Raspberry Pi
 - Hardware accelerated decoding and 0-copy GPU rendering for all platforms
-- OpenGL rendering w/ or w/o user provided context
-- Ingegrated with any gui toolkits via OpenGL (Qt, SDL, glfw, SFML etc.) easily
+- OpenGL and D3D11 rendering w/ or w/o user provided context
+- Ingegrated with any gui toolkits or apps via OpenGL and D3D11 (OBS, Qt, SDL, glfw, SFML etc.) easily
 - Seamless/Gapless media and bitrate switch for any media
 - User configurable FFmpeg libraries at runtime
 - HDR rendering in GPU
@@ -35,6 +37,7 @@ https://github.com/wang-bin/mdk-sdk/wiki/TODO
 
 ## Open Source Modules and Examples
 - MFT decoder module: https://github.com/wang-bin/mdk-mft
+- obs plugin: https://github.com/wang-bin/obs-mdk
 - examples for different platforms and gui toolkits: https://github.com/wang-bin/mdk-examples
 - as a qtmultimedia plugin: https://github.com/wang-bin/qtmultimedia-plugins-mdk
 - GFX surface: https://github.com/wang-bin/ugs