small wording fixes
Originally committed as revision 15358 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -49,11 +49,11 @@ Main path
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Input to YUV Converter
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When the input to the main path is not planar 8 bits per component YUV or
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8-bit gray then it is converted to planar 8-bit YUV. 2 sets of converters
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8-bit gray, it is converted to planar 8-bit YUV. Two sets of converters
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exist for this currently: One performs horizontal downscaling by 2
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before the conversion, the other leaves the full chroma resolution
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before the conversion, the other leaves the full chroma resolution,
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but is slightly slower. The scaler will try to preserve full chroma
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here when the output uses it. It is possible to force full chroma with
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when the output uses it. It is possible to force full chroma with
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SWS_FULL_CHR_H_INP even for cases where the scaler thinks it is useless.
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Horizontal scaler
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@ -62,8 +62,8 @@ Horizontal scaler
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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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Future >8 bits per component inputs will need to add a new scaler here
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that preserves the input precision.
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Future >8 bits per component inputs will need to add a new horizontal
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scaler that preserves the input precision.
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Vertical scaler and output converter
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There is a large number of combined vertical scalers + output converters.
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