Module nokhwa::utils

Structs

• CameraControl
  This struct tells you everything about a particular KnownCameraControl.
• CameraFormat
  This is a convenience struct that holds all information about the format of a webcam stream. It consists of a Resolution, FrameFormat, and a frame rate(u8).
• CameraInfo
  Information about a Camera e.g. its name. description amd misc may contain information that may differ from backend to backend. Refer to each backend for details. index is a camera’s index given to it by (usually) the OS usually in the order it is known to the system.
• RequestedFormat
  A request to the camera for a valid CameraFormat
• Resolution
  Describes a Resolution. This struct consists of a Width and a Height value (x,y).
  Note: the Ord implementation of this struct is flipped from highest to lowest.

Enums

• ApiBackend
  The list of known capture backends to the library.
  
• CameraIndex
  Describes the index of the camera.
• ControlValueDescription
  The values for a CameraControl.
• ControlValueSetter
  The setter for a control value
• FrameFormat
  Describes a frame format (i.e. how the bytes themselves are encoded). Often called FourCC.
• KnownCameraControl
  The list of known camera controls to the library.
  These can control the picture brightness, etc.
  Note that not all backends/devices support all these. Run supported_camera_controls() to see which ones can be set.
• KnownCameraControlFlag
  This tells you weather a KnownCameraControl is automatically managed by the OS/Driver or manually managed by you, the programmer.
• RequestedFormatType
  Tells the init function what camera format to pick.

Functions

• all_known_camera_controls
  All camera controls in an array.
• buf_mjpeg_to_rgbmjpeg
  Equivalent to mjpeg_to_rgb except with a destination buffer.
• buf_nv12_to_rgb
  Converts a YUYV 4:2:0 bi-planar (NV12) datastream to a RGB888 Stream and outputs it into a destination buffer. For further reading
• buf_yuyv422_to_rgb
  Same as yuyv422_to_rgb but with a destination buffer instead of a return Vec<u8>
• color_frame_formats
  Returns all the color frame formats
• frame_formats
  Returns all the frame formats
• mjpeg_to_rgbmjpeg
  Converts a MJPEG stream of &[u8] into a Vec<u8> of RGB888. (R,G,B,R,G,B,…)
• nv12_to_rgb
  Converts a YUYV 4:2:0 bi-planar (NV12) datastream to a RGB888 Stream. For further reading
• yuyv422_predicted_size
  Returns the predicted size of the destination YUYV422 buffer.
• yuyv422_to_rgb
  Converts a YUYV 4:2:2 datastream to a RGB888 Stream. For further reading
• yuyv444_to_rgb
  Convert YCbCr 4:4:4 to a RGB888. For further reading
• yuyv444_to_rgba
  Convert YCbCr 4:4:4 to a RGBA8888. For further reading