This patch series adds support to explicitly specify the colorspace transfer
function. This was always implicitly defined by the colorspace, but (as I
suspected that it might happen) this turned out not to work. In practice it
is an independent setting in its own right and it is commonly specified as
such (EDID, metadata inside compressed video streams).
In addition, you need this if you want to be able to specify linear RGB data
such as is often returned by raw sensor images and as is used by openGL.
The next step once this is merged is to start providing support for colorspace
conversion hardware.
Regards,
Hans
The following changes since commit c1c3c85ddf60a6d97c122d57d385b4929fcec4b3:
[media] DocBook: fix FE_SET_PROPERTY ioctl arguments (2015-06-01 06:10:15 -0300)
are available in the git repository at:
git://linuxtv.org/hverkuil/media_tree.git xfer
for you to fetch changes up to 7d7627ee142035c9b9656da0219973814f6afa9a:
vivid.txt: update the vivid documentation (2015-06-02 08:27:14 +0200)
----------------------------------------------------------------
Hans Verkuil (9):
videodev2.h: add support for transfer functions
DocBook/media: document new xfer_func fields.
adv7511: add xfer_func support
am437x-vpfe: add support for xfer_func
vivid: add xfer_func support.
vivid-tpg: precalculate colorspace/xfer_func combinations
cobalt: support transfer function
cobalt: simplify colorspace code
vivid.txt: update the vivid documentation
Documentation/DocBook/media/v4l/pixfmt.xml | 113 ++++++++++++++----
Documentation/DocBook/media/v4l/subdev-formats.xml | 12 +-
Documentation/video4linux/vivid.txt | 30 +++--
drivers/media/i2c/adv7511.c | 5 +
drivers/media/pci/cobalt/cobalt-driver.h | 1 +
drivers/media/pci/cobalt/cobalt-v4l2.c | 17 ++-
drivers/media/platform/am437x/am437x-vpfe.c | 3 +-
drivers/media/platform/vivid/vivid-core.h | 1 +
drivers/media/platform/vivid/vivid-ctrls.c | 58 ++++++---
drivers/media/platform/vivid/vivid-tpg-colors.c | 478 +++++++++++++++++++++++++++++++++++++++++++++++++++++++------------------
drivers/media/platform/vivid/vivid-tpg-colors.h | 4 +-
drivers/media/platform/vivid/vivid-tpg.c | 13 +-
drivers/media/platform/vivid/vivid-tpg.h | 19 +++
drivers/media/platform/vivid/vivid-vid-cap.c | 9 ++
drivers/media/platform/vivid/vivid-vid-common.c | 2 +
drivers/media/platform/vivid/vivid-vid-out.c | 4 +
drivers/media/v4l2-core/v4l2-ioctl.c | 9 +-
include/media/v4l2-mediabus.h | 2 +
include/uapi/linux/v4l2-mediabus.h | 4 +-
include/uapi/linux/videodev2.h | 41 ++++++-
20 files changed, 640 insertions(+), 185 deletions(-)
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