Fix comments for SkYUVColorSpace
Document the range of video YUV values for the U and V components, which
is different from the range for the Y component.
Change-Id: I2c0101440e351013c7b3121573a591ad9860b2e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/293868
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
diff --git a/include/core/SkImageInfo.h b/include/core/SkImageInfo.h
index a8378c4..b4c2c56 100644
--- a/include/core/SkImageInfo.h
+++ b/include/core/SkImageInfo.h
@@ -136,11 +136,11 @@
Describes color range of YUV pixels. The color mapping from YUV to RGB varies
depending on the source. YUV pixels may be generated by JPEG images, standard
video streams, or high definition video streams. Each has its own mapping from
- YUV and RGB.
+ YUV to RGB.
JPEG YUV values encode the full range of 0 to 255 for all three components.
- Video YUV values range from 16 to 235 for all three components. Details of
- encoding and conversion to RGB are described in YCbCr color space.
+ Video YUV values range from 16 to 235 for Y and from 16 to 240 for U and V.
+ Details of encoding and conversion to RGB are described in YCbCr color space.
The identity colorspace exists to provide a utility mapping from Y to R, U to G and V to B.
It can be used to visualize the YUV planes or to explicitly post process the YUV channels.
