Updated ReadMe file.
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ReadMe.txt
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ReadMe.txt
@ -118,7 +118,25 @@ long time to index the source file. In that case, we recommend to index
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the source file beforehand, e.g. by using the 'ffmsindex' tool.
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8. Command-line Syntax
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8. Color Spaces / Chroma Subsampling
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------------------------------------
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Avs2YUV converts the output of your Avisynth script to the YV12 format,
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i.e. YUV data with 4:2:0 chroma subsampling and 8-Bit precision.
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Usually this is exactly what you want/need. If, however, your Avisynth
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script outputs image data with a higher chroma resolution, e.g. YUY2
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(4:2:2), then the conversion to YV12 (4:2:0) will discard some of the
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information. In that case, if you want/need to keep the full chroma
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resolution of your Avisynth script's output, you will have to pass the
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"-csp" switch to Avs2YUV as a custom parameter! Use "-csp I422" for
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YUV 4:2:2 (YV16) and use "-csp I444" for YUV 4:4:4 (YV24). Note,
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however, that Avisynth 2.5 did NOT support YV16/YV24, so you need to
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use Avisynth 2.6 or Avs2YUV will fail! Also be aware that x264 itself
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will convert any YV16 or YV24 input back to YV12, if you don't pass the
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suitable "--csp-output i422/i444" switch as a custom parameter to x264!
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9. Command-line Syntax
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----------------------
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The following command-line switches are available:
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@ -130,8 +148,8 @@ The following command-line switches are available:
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--force-cpu-no-64bit .... Forcefully disable 64-Bit support
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9. Help & Support
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-----------------
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10. Help & Support
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------------------
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For help and support, please join the discussion at:
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http://forum.doom9.org/showthread.php?t=144140
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