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authorNaushir Patuck <naush@raspberrypi.com>2021-06-08 12:03:32 +0100
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-06-08 23:56:03 +0300
commit5055ca747c4c0d635ed8f2ab272f493748c2f50a (patch)
tree66c5b36389a5d0f4bfe07f2edf5bf4877c413d30 /include/linux/dma-buf.h
parent75c14908271d44edac3b7c8d0f94501a3c93477e (diff)
libcamera: utils: Add helper class for std::chrono::duration
A new utils::Duration class is defined to represent a std::chrono::duration type with double precision nanosecond timebase. Using a double minimises the loss of precision when converting timebases. This helper class may be used by IPAs to represent variables such as frame durations and exposure times. An operator << overload is defined to help with displaying utils::Duration value in stream objects. Currently, this will display the duration value in microseconds. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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