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libcamera: v4l2_device: Add support for META_CAPTURE devices

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Add support for devices that provide video meta-data to v4l2_device.cpp
and re-arrange bufferType handling in open() method.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi
2019-03-02 18:32:00 +01:00
parent 0088979683
commit 3e94f9d7a2
2 changed files with 76 additions and 20 deletions
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src/libcamera/include/v4l2_device.h
+25 -1
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@@ -51,13 +51,37 @@ struct V4L2Capability final : v4l2_capability {
bool isCapture() const
{
return device_caps() & (V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE_MPLANE);
V4L2_CAP_VIDEO_CAPTURE_MPLANE |
V4L2_CAP_META_CAPTURE);
}
bool isOutput() const
{
return device_caps() & (V4L2_CAP_VIDEO_OUTPUT |
V4L2_CAP_VIDEO_OUTPUT_MPLANE);
}
bool isVideo() const
{
return device_caps() & (V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE_MPLANE |
V4L2_CAP_VIDEO_OUTPUT |
V4L2_CAP_VIDEO_OUTPUT_MPLANE);
}
bool isMeta() const
{
return device_caps() & V4L2_CAP_META_CAPTURE;
}
bool isVideoCapture() const
{
return isVideo() && isCapture();
}
bool isVideoOutput() const
{
return isVideo() && isOutput();
}
bool isMetaCapture() const
{
return isMeta() && isCapture();
}
bool hasStreaming() const
{
return device_caps() & V4L2_CAP_STREAMING;