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  • Committer: Package Import Robot
  • Author(s): Sebastian Dröge
  • Date: 2013-09-24 17:07:00 UTC
  • mfrom: (1.1.17) (7.1.9 experimental)
  • Revision ID: package-import@ubuntu.com-20130924170700-4dg62s3pwl0pdakz
Tags: 1.2.0-1
* New upstream stable release:
  + debian/control:
    - Build depend on GStreamer and gst-plugins-base >= 1.2.0.

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gst-libs/ext/libav/doc/swscale.txt
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Horizontal scaler
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    There are several horizontal scalers. A special case worth mentioning is
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    the fast bilinear scaler that is made of runtime-generated MMX2 code
 
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    the fast bilinear scaler that is made of runtime-generated MMXEXT code
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    using specially tuned pshufw instructions.
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    The remaining scalers are specially-tuned for various filter lengths.
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    They scale 8-bit unsigned planar data to 16-bit signed planar data.
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Also, as already hinted at, initFilter() accepts an optional convolutional
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filter as input that can be used for contrast, saturation, blur, sharpening
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shift, chroma vs. luma shift, ...
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