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authorHans de Goede <hdegoede@redhat.com>2024-07-13 20:43:27 +0200
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2024-07-21 19:26:46 +0300
commit4661a7eedf81f00212956f0d396196b3eb4a417b (patch)
tree85446a863446daf1cf2c1c659d5109d5c1c7f6ac /LICENSES/Apache-2.0.txt
parent644986c2b77eef28150f6ea2083f9b828c509d26 (diff)
libcamera: v4l2_videodevice: Use bufferType_ in [get|try|set]Format()
V4L2VideoDevice is using the caps to determine which kind of buffers to use with the video-device in 2 different cases: 1. V4L2VideoDevice::open() 2. V4L2VideoDevice::[get|try|set]Format() And the order in which the caps are checked is different between these 2 cases. This is a problem for /dev/video# nodes which support both video-capture and metadata buffers. open() sets bufferType_ to V4L2_BUF_TYPE_VIDEO_CAPTURE[_MPLANE] in this case, where as [get|try|set]Format() will call [get|set]FormatMeta() which does not work with V4L2_BUF_TYPE_VIDEO_CAPTURE[_MPLANE] buffers. Switch [get|try|set]Format() to use the bufferType_ to determine on what sort of buffers they should be operating, leaving the V4L2VideoDevice code with only a single place where the decision is made what sort of buffers it should operate on for a specific /dev/video# node. This will also allow to modify open() in the future to take a bufferType argument to allow overriding the default bufferType it selects for /dev/video# nodes which are capable of supporting more then 1 buffer type. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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