The V4L2Device constructor wants a "const MediaEntity &", while
entities are usually retrieved by pointer before being used to construct
a V4L2Device. Change the constructor argument to "const MediaEntity *".
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
The 'bytesperline' field of 'struct v4l2_pix_format' has to be set for
the single planar set format use case.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Zero initialize v4l2_format structures used to set and get format on the
V4L2 device.
Fixes: ba8da0f2fc ("libcamera: v4l2_device: Add methods to get/set format")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Rename the number of valid plane formats to 'planesCount' and the actual
per-plane size information array to 'planes'.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Rename parameters to get and set format functions to expand 'fmt' to
'format'.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
The single plane getFormat() function wrongly used the VIDIOC_S_FMT ioctl.
Fix that by using the more opportune VIDIOC_G_FMT one.
Fixes: ba8da0f2fc ("libcamera: v4l2_device: Add methods to get/set format")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Rename format() to getFormat() to reflect the v4l2 API names more
closely.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add methods to set and get the image format programmed on a V4L2Device
for both the single and multi planar use case.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add a V4L2DeviceFormat class aimed to be used to provide format configuration
requests to a V4L2Device.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
The capabilities structure from the kernel can return capabilities of the
driver, or potentially more specific device capabilities.
Handle this with an inline function 'device_caps()' to return the device
specific capabilities when available, or fall back to the driver capabilities
otherwise.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Do not use the abreviated version for members, variables and getter
methods.
Library-wise rename, no intended functional changes.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Construct a V4L2Device from a MediaEntity device node path. While at
there mark constructor as explicit to avoid copy-construction.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Provide a helper V4L2 device object capable of interacting with the
V4L2 Linux Kernel APIs.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
