函数 av_stereo3d_primary_eye_from_name 

pub unsafe extern "C" fn av_stereo3d_primary_eye_from_name(
    name: *const c_char,
) -> c_int

Get the AVStereo3DPrimaryEye form a human-readable name.

@param name The input string.

@return The AVStereo3DPrimaryEye value, or -1 if not found.