22 Mar, 2011
3 commits
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This patch adds the VIDIOC_SUBDEV_S_CROP and G_CROP ioctls to the
userland API. CROPCAP is not implemented because it's redundant.Signed-off-by: Antti Koskipaa
Signed-off-by: Laurent Pinchart
Acked-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
The three new ioctl VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL,
VIDIOC_SUBDEV_G_FRAME_INTERVAL and VIDIOC_SUBDEV_S_FRAME_INTERVAL can be
used to enumerate and configure a subdev's frame rate from userspace.Two new video::g/s_frame_interval subdev operations are introduced to
support those ioctls. The existing video::g/s_parm operations are
deprecated and shouldn't be used anymore.Signed-off-by: Laurent Pinchart
Signed-off-by: Sakari Ailus
Acked-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
Add a userspace API to get, set and enumerate the media format on a
subdev pad.The format at the output of a subdev usually depends on the format at
its input(s). The try format operation is thus not suitable for probing
format at individual pads, as it can't modify the device state and thus
can't remember the format tried at the input to compute the output
format.To fix the problem, pass an extra argument to the get/set format
operations to select the 'try' or 'active' format.The try format is used when probing the subdev. Setting the try format
must not change the device configuration but can store data for later
reuse. Data storage is provided at the file-handle level so applications
probing the subdev concurently won't interfere with each other.The active format is used when configuring the subdev. It's identical to
the format handled by the usual get/set operations.Signed-off-by: Laurent Pinchart
Signed-off-by: Stanimir Varbanov
Signed-off-by: Sakari Ailus
Acked-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
