Hello,
This changeset adds new V4L2_CID_ALPHA_COMPONENT control that allows to configure
an alpha component of all pixels on the video capture device or on capture queue
of a mem-to-mem device. This is meant for devices that allow to set a per-pixel
alpha at the pipeline output to a desired value and where the input alpha component
doesn't influence the output alpha value.
The second patch adds the control to s5p-fimc video capture and mem-to-mem driver.
This changset also does a minor cleanup at the user controls DocBook chapter.
Changes since v2:
- removed limitation of maximum value for the V4L2_CID_ALPHA_COMPONENT control
to 0xff in v4l core
- the driver now uses function v4l2_ctrl_update_range() for the control range
update according to selected colour format
Changes since v1:
- rename V4L2_CID_COLOR_ALPHA to V4L2_CID_ALPHA_COMPONENT,
- the documentation improvements.
Hans Verkuil (1):
v4l-ctrl: Add a method for control value range update
Sylwester Nawrocki (2):
v4l: Add new alpha component control
s5p-fimc: Add support for alpha component configuration
Documentation/DocBook/media/v4l/compat.xml | 11 ++
Documentation/DocBook/media/v4l/controls.xml | 25 +++-
.../DocBook/media/v4l/pixfmt-packed-rgb.xml | 7 +-
drivers/media/video/s5p-fimc/fimc-capture.c | 16 ++
drivers/media/video/s5p-fimc/fimc-core.c | 130 ++++++++++++++----
drivers/media/video/s5p-fimc/fimc-core.h | 31 ++++-
drivers/media/video/s5p-fimc/fimc-reg.c | 53 ++++++--
drivers/media/video/s5p-fimc/regs-fimc.h | 5 +
drivers/media/video/v4l2-ctrls.c | 148 ++++++++++++++------
include/linux/videodev2.h | 7 +-
include/media/v4l2-ctrls.h | 17 +++
11 files changed, 354 insertions(+), 96 deletions(-)
--
Regards,
Sylwester Nawrocki
Samsung Poland R&D Center
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