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authorUmang Jain <umang.jain@ideasonboard.com>2022-03-17 16:17:39 +0530
committerUmang Jain <umang.jain@ideasonboard.com>2022-03-23 21:52:57 +0530
commitb24e39be48ffa581ef93044084bc3b4d20053804 (patch)
tree3ad484db5fabd8fb325027e37f0dcb43c520825c /test/v4l2_subdevice
parentea9bc717bd0988f481956178fd0c399998b016f7 (diff)
libcamera: v4l2_videodevice: Clarify setting of v4l2_buffer timestamp
Add a comment to clarify why we set v4l2_buffer timestamp while queuing the buffer (VIDIOC_QBUF). The timstamps are required to be supplied for memory-to-memory devices for output streams which then are copied to capture stream buffers with the help of V4L2_BUF_FLAG_TIMESTAMP_COPY (set by the driver). Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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