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authorRishikesh Donadkar <rishikeshdonadkar@gmail.com>2022-09-15 17:17:34 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2022-11-12 00:15:05 +0530
commitccfe0a1af77c3d13e81a913b25206d6a4a4747e4 (patch)
treedc11c18a8600afc25946afe2fa2ee93c698755d2 /test/v4l2_subdevice
parent872588301fe6badb4b22cd8d16ab094753138b52 (diff)
gstreamer: Provide framerate support for libcamerasrc
Control the framerate by passing the controls::FrameDurationLimits during Camera::start(). Framerate in gstreamer is expressed as GST_TYPE_FRACTION so we maximise on maintaining it as a fraction throughout and only do arithematic computations as and when required (to compute frame-duration and vice-versa). To weed out abritrary framerate as input, place the clamping via the controls::FrameDurationLimits provided after camera::configure() phase. This is handled by a helper function gst_libcamera_clamp_and_set_frameduration(). Set the bound checked framerate (done in the above mentioned helper) into the caps and pass the ControlList containing the frame-duration to Camera::start(ctrls). Signed-off-by: Rishikesh Donadkar <rishikeshdonadkar@gmail.com> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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