com.xuexiang.xqrcode.camera

Class PlanarYUVLuminanceSource

java.lang.Object

LuminanceSource

com.xuexiang.xqrcode.camera.PlanarYUVLuminanceSource

public final class PlanarYUVLuminanceSource
extends LuminanceSource

This object extends LuminanceSource around an array of YUV data returned from the camera driver, with the option to crop to a rectangle within the full data. This can be used to exclude superfluous pixels around the perimeter and speed up decoding.

It works for any pixel format where the Y channel is planar and appears first, including YCbCr_420_SP and YCbCr_422_SP.

Author:

dswitkin@google.com (Daniel Switkin)

Constructor Summary

Constructors

Constructor and Description
PlanarYUVLuminanceSource(byte[] yuvData, int dataWidth, int dataHeight, int left, int top, int width, int height)

Method Summary

Modifier and Type	Method and Description
int	getDataHeight()
int	getDataWidth()
byte[]	getMatrix()
byte[]	getRow(int y, byte[] row)
boolean	isCropSupported()
android.graphics.Bitmap	renderCroppedGreyscaleBitmap()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PlanarYUVLuminanceSource

public PlanarYUVLuminanceSource(byte[] yuvData,
                                int dataWidth,
                                int dataHeight,
                                int left,
                                int top,
                                int width,
                                int height)

Method Detail

getRow

public byte[] getRow(int y,
                     byte[] row)

getMatrix

public byte[] getMatrix()

isCropSupported

public boolean isCropSupported()

getDataWidth

public int getDataWidth()

getDataHeight

public int getDataHeight()

renderCroppedGreyscaleBitmap

public android.graphics.Bitmap renderCroppedGreyscaleBitmap()