xy-VSFilter - A much better Subtitle Renderer for MPC-HC in CCCP

[Koby]

If you’re having issues with soft-sub karaoke or other subtitles lagging on lower powered PCs, try installing xy-vsfilter: http://code.google.com/p/xy-vsfilter/

Just replace the VSFilter.dll that comes with CCCP with that one. OPs and EDs with soft-sub karaoke in 10 bit encodes went from “completely unwatchable” to “perfectly fine” on my shitty PC after I did this.

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Based on VSFilter 2.39 Guliverkli2 with various important changes from VSFilter 2.40 MPC-HC. Supports subtitle scripts supported by Official VSFilter 2.39 & 2.40 builds, but in a more efficient way.

What Is Different

• Much faster than Official VSFilter 2.39 & 2.40
  
  • Subpics are now drawn directly in YUV/RGB as needed to improve performance
    
    • Official VSFilter always rendered subtitles in RGB and did a RGB -> YUV conversion when outputting YUV formats
      

    [*]More efficient Blur code

    [*]Alpha blending on dirty areas of the frame only

    [*]Alpha-blending with sub-sampled/interlaced chroma where applicable

    [*]Addition of numerous caches to speed up animated effects

    [*]Proper implementation of animation detection to speed up static typesetting

    [*]New script parser to speed up loading of very large subtitle scripts

    [*]75% reduction in CPU load overhead when idle

• Input/Output support for 10-bit P010 & 16-bit P016 4:2:0 YUV formats
  
  • Requires: madVR video renderer and a video decoder which supports P010 or P016 output to use this optional feature
    

• Input/Output support for NV12 & NV21 4:2:0 YUV formats
  
  • Important for users of ATI GPUs and EVR-CP
    

• Sub-pixel Positioning configuration option [None, 2x2, 4x4, 8x8, 8x8(bilinear)]
  
  • Official VSFilter defaults to 8x8. New method 8x8(bilinear) offers 8x8 positioning using bilinear scaling instead of rasterization.
    

• BT.709/BT.601 matrix configuration option for subtitle rendering
  
  • Option for automatic matrix selection based on video resolution
    
  • Official VSFilter always does color rendering using BT.601, so this has been left as the default for compatibility
    

• HDMV(PGS) & DVB Subtitle support from VSFilter 2.40
  

• Removed pre-buffer subpics option (may be re-added in the future)
  

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