Extract the detected face pitch angle from the provided face metadata.
int camera_meta_get_face_pitch(const camera_metadata_t metadata, float *pitch)
The metadata supplied to the user-defined consumer function by camera_meta_iterate_metadata().
The angle of rotation of the face around the x-axis.
Library:libcamapi (For the qcc command, use the -l camapi option to link against this library)
The pitch value ranges from -180 degrees to +180 degrees relative to the preview buffer coordinate space. A negative pitch angle indicates that the face is tilted downward. A positive pitch angle indicates that the face is tilted upward.
Last modified: 2014-06-24