media: uvcvideo: Convey full colorspace information to V4L2

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The Color Matching Descriptor has been present in USB cameras since
the original version of UVC, but it has never been fully exposed
in Linux.

This change informs V4L2 of all of the UVC colorspace parameters:
color primaries, transfer characteristics, and YCbCr encoding.
videodev2.h doesn't have values for all the possible UVC color settings,
so it is mapped as closely as possible.

Signed-off-by: Adam Goode <agoode@google.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

...

This commit is contained in:

Adam Goode 2020-09-02 22:06:17 +02:00 • committed by Mauro Carvalho Chehab

parent 8a652a17e3

commit ec2c23f628

3 changed files with 67 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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64

drivers/media/usb/uvc/uvc_driver.c

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4

drivers/media/usb/uvc/uvc_v4l2.c

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4

drivers/media/usb/uvc/uvcvideo.h

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