VSFilter 2.39/2.41 uses 'incorrect' MPEG-1 centered chroma placement Support for 'correct' MPEG-2/H.264 left chroma placement for YCbCr output Support for non-integer values of fscx fscy Support for sub-pixel drawing of vector shapes. TV/PC YCbCr level range configuration option for subtitle renderingĭefaults to TV range when 'YCbCr Matrix' is not present in the script. Support for 'YCbCr Matrix' tagging in SSA/ASS scripts.ĭefaults to BT.601 when 'YCbCr Matrix' is not present in the script. New method 8x8(bilinear) offers 8x8 positioning using bilinear scaling instead of rasterization.īT.709/BT.601 matrix configuration option for subtitle rendering Sub-pixel Positioning configuration option Input/Output support for AYUV 4:4:4 YUV format Important for users of ATI GPUs and EVR-CP Input/Output support for NV12 & NV21 4:2:0 YUV formats madVR) and video decoder to use this optional feature. Requires: P010 or P016 support in both the video renderer (e.g. Input/Output support for 10-bit P010 & 16-bit P016 4:2:0 YUV formats New script parser to speed up loading of very large subtitle scriptsħ5% reduction in CPU load overhead when idle Proper implementation of animation detection to speed up static typesetting More efficient Color Conversion, Chroma Placement, Alpha Blending, and Rasterization code (SSE2 optimized)Īlpha blending on dirty areas of the frame onlyĪlpha-blending with sub-sampled/interlaced chroma where applicableĪddition of numerous caches to speed up animated effects More efficient Clip code (significantly faster + up to 1.8GB reduction in RAM usage when rendering gradients) More efficient Border code (higher quality + up to 12x faster with large border sizes) Official VSFilter always rendered subtitles in RGB and did a RGB -> YUV conversion when outputting YUV formatsįloating-point Gaussian Blur implementation (higher quality + significantly faster with large blur values) Subpics are now drawn directly in YUV/RGB as needed to improve performance Support U+10000-U+10FFFF UTF-8 encoded character (XySubFilter only) New Style Override Dialog (XySubFilter only) High resolution subtitle rendering (XySubFilter only)Įxternal support for PGS/HDMV subtitles (XySubFilter only) Up to multiple orders of magnitude faster than VSFilter 2.41 Significantly faster overall compared to Libass. What Is Different in xy-VSFilter & XySubFilter
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