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video-converter: add some notes

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Wim Taymans 2014-11-12 09:57:12 +01:00
parent 3112335cd6
commit bb4863111b
1 changed files with 40 additions and 0 deletions
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gst-libs/gst/video/video-converter.c
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@ -55,6 +55,46 @@
* </refsect2>
*/
/*
* (a) unpack
* (b) chroma upsample
* (c) (convert Y'CbCr to R'G'B')
* (d) gamma decode
* (e) downscale
* (f) colorspace convert through XYZ
* (g) upscale
* (h) gamma encode
* (i) (convert R'G'B' to Y'CbCr)
* (j) chroma downsample
* (k) pack
*
* quality options
*
* (a) range truncate, range expand
* (b) full upsample, 1-1 non-cosited upsample, no upsample
* (c) 8 bits, 16 bits
* (d)
* (e) 8 bits, 16 bits
* (f) 8 bits, 16 bits
* (g) 8 bits, 16 bits
* (h)
* (i) 8 bits, 16 bits
* (j) 1-1 cosited downsample, no downsample
* (k)
*
*
* 1 : a -> -> -> -> e -> f -> g -> -> -> -> k
* 2 : a -> -> -> -> e -> f* -> g -> -> -> -> k
* 3 : a -> -> -> -> e* -> f* -> g* -> -> -> -> k
* 4 : a -> b -> -> -> e -> f -> g -> -> -> j -> k
* 5 : a -> b -> -> -> e* -> f* -> g* -> -> -> j -> k
* 6 : a -> b -> c -> d -> e -> f -> g -> h -> i -> j -> k
* 7 : a -> b -> c -> d -> e* -> f* -> g* -> h -> i -> j -> k
*
* 8 : a -> b -> c -> d -> e* -> f* -> g* -> h -> i -> j -> k
* 9 : a -> b -> c -> d -> e* -> f* -> g* -> h -> i -> j -> k
* 10 : a -> b -> c -> d -> e* -> f* -> g* -> h -> i -> j -> k
*/
typedef struct _GstLineCache GstLineCache;
struct _GstVideoConverter