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libcamera: v4l2_device: Identify multiplanar formats

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Add functions to V4L2Capability to identify if a V4L2 device supports
multiplanar V4L2 APIs.

Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi 2019-01-21 16:50:05 +01:00
parent 0052aaa40e
commit 987bd370b0
2 changed files with 25 additions and 4 deletions
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23
src/libcamera/include/v4l2_device.h
View file

@ -32,10 +32,25 @@ struct V4L2Capability final : v4l2_capability {
? v4l2_capability::device_caps
: v4l2_capability::capabilities;
}
bool isCapture() const { return device_caps() & V4L2_CAP_VIDEO_CAPTURE; }
bool isOutput() const { return device_caps() & V4L2_CAP_VIDEO_OUTPUT; }
bool hasStreaming() const { return device_caps() & V4L2_CAP_STREAMING; }
bool isMultiplanar() const
{
return device_caps() & (V4L2_CAP_VIDEO_CAPTURE_MPLANE |
V4L2_CAP_VIDEO_OUTPUT_MPLANE);
}
bool isCapture() const
{
return device_caps() & (V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE_MPLANE);
}
bool isOutput() const
{
return device_caps() & (V4L2_CAP_VIDEO_OUTPUT |
V4L2_CAP_VIDEO_OUTPUT_MPLANE);
}
bool hasStreaming() const
{
return device_caps() & V4L2_CAP_STREAMING;
}
};
class MediaEntity;

6
src/libcamera/v4l2_device.cpp
View file

@ -56,6 +56,12 @@ LOG_DEFINE_CATEGORY(V4L2)
* driver capabilities otherwise
*/
/**
* \fn bool V4L2Capability::isMultiplanar()
* \brief Identify if the device implement V4L2 multiplanar APIs
* \return True if the device supports multiplanar APIs
*/
/**
* \fn bool V4L2Capability::isCapture()
* \brief Identify if the device is capable of capturing video