Camera.java

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package com.buglabs.bug.jni.camera;

import com.buglabs.bug.jni.common.CharDevice;

/**
 * Camera device.
 *
 */
public class Camera extends CharDevice {
	static {
		System.loadLibrary("Camera");
	}
			
	/**
	 * @param media_node
	 * @param slot_num
	 * @param raw_height
	 * @param raw_width
	 * @param resize_height
	 * @param resize_width
	 * @return 0 on success
	 */
	public native int bug_camera_open(final String media_node,
			int slot_num,
			int raw_height,
			int raw_width,
			int resize_height,
			int resize_width);
	
	/**
	 * Close the camera device
	 * @return 0 on success
	 */
	public native int bug_camera_close();

	/**
	 * start acquiring frames (typically for preview mode)
	 *  camera must have been opened first
	 *  
	 * @return 0 on success
	 */
	public native int bug_camera_start();
	

	/**
	 * stop acquiring frames (typically for preview mode)
	 * camera may be closed one it' stopped
	 * @return 0 on success
	 */
	public native int bug_camera_stop();

	/**
	 * grab a preview-sized image as RGB. If pixelBuffer is null the frame
	 * will still be grabbed, but then thrown away - which is useful
	 * on startup to allow the sensor to settle
	 * 
	 * @param pixelBuffer array to load with values
	 * @return 0 on success
	 */
	public native boolean bug_camera_grab_preview(int [] pixelBuffer);
	
	
	/**
	 * Grab a raw-sized image as JPEG
	 * @return byte array of image
	 */
	public native byte[] bug_camera_grab_raw();
	
	
	/**
	 * flush the frame queue
	 * @return 0 on success
	 */
	public native int bug_camera_flush_queue();
}