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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-07-06 05:29:57 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2021-07-22 17:13:23 +0300
commitbb682d258517c7ed9c773f184df113e83f26c4f2 (patch)
tree360ef07c155d7e40f2efd46ec89d1c8880d796f0 /test/file-descriptor.cpp
parentb53f68e66ccfe67ca8b4ff4f7235a66fcfae01de (diff)
cam: options: Support parent-child relationship between options
Add support for creating a tree-based hieararchy of options instead of a flat list. This is useful to support options that need to be interpreted in the context of a particular occurrence of an array option. The usage text automatically documents the options in their corresponding context: Options: -c, --camera camera ... Specify which camera to operate on, by id or by index -h, --help Display this help message -I, --info Display information about stream(s) -l, --list List all cameras --list-controls List cameras controls -p, --list-properties List cameras properties -m, --monitor Monitor for hotplug and unplug camera events Options valid in the context of --camera: -C, --capture[=count] Capture until interrupted by user or until <count> frames captured -F, --file[=filename] Write captured frames to disk If the file name ends with a '/', it sets the directory in which to write files, using the default file name. Otherwise it sets the full file path and name. The first '#' character in the file name is expanded to the camera index, stream name and frame sequence number. The default file name is 'frame-#.bin'. -s, --stream key=value[,key=value,...] ... Set configuration of a camera stream height=integer Height in pixels pixelformat=string Pixel format name role=string Role for the stream (viewfinder, video, still, raw) width=integer Width in pixels --strict-formats Do not allow requested stream format(s) to be adjusted --metadata Print the metadata for completed requests Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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