From efa5fe48ebc866ec07a597ef551cf7e13c3b7aba Mon Sep 17 00:00:00 2001
From: whycxzp <glperry@163.com>
Date: 星期六, 27 七月 2024 17:27:02 +0800
Subject: [PATCH] 更新单摄像头的AR方案
---
app/src/main/java/com/whyc/util/BitmapUtil.java | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 104 insertions(+), 0 deletions(-)
diff --git a/app/src/main/java/com/whyc/util/BitmapUtil.java b/app/src/main/java/com/whyc/util/BitmapUtil.java
index c70b480..8f9d690 100644
--- a/app/src/main/java/com/whyc/util/BitmapUtil.java
+++ b/app/src/main/java/com/whyc/util/BitmapUtil.java
@@ -2,18 +2,30 @@
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
import java.io.FileInputStream;
+import java.io.FileNotFoundException;
import java.io.FileOutputStream;
+import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Locale;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
+import android.graphics.ImageFormat;
import android.graphics.Matrix;
//import android.support.media.ExifInterface;
+import android.graphics.Rect;
+import android.graphics.YuvImage;
import android.media.ExifInterface;
+import android.media.Image;
import android.os.Environment;
+import android.renderscript.RenderScript;
+import android.renderscript.ScriptIntrinsicYuvToRGB;
+
+import static android.os.Environment.DIRECTORY_DOCUMENTS;
public class BitmapUtil {
@@ -115,4 +127,96 @@
e.printStackTrace();
}
}
+
+ private static ByteArrayOutputStream stream = new ByteArrayOutputStream();
+ /**灏唍v21鏁版嵁杞崲涓築itmap*/
+ public static Bitmap nv21ToBitmap(byte[] nv21, int width, int height) {
+ Bitmap bitmap = null;
+ YuvImage image = new YuvImage(nv21, ImageFormat.NV21, width, height, null);
+ //杈撳嚭鍒板搴旀祦
+ image.compressToJpeg(new Rect(0, 0, width, height), 100, stream);
+ //瀵瑰簲瀛楄妭娴佺敓鎴恇itmap
+ bitmap = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());
+ //閬垮厤涓棿鐨刡yte鏁扮粍杞崲姝ラ锛岀洿鎺ヤ粠YuvImage鍐欏叆ByteBuffer锛岀劧鍚庝娇鐢˙itmapFactory鐨勭浉搴旀柟娉曠洿鎺ヤ粠ByteBuffer鍒涘缓Bitmap
+ stream.reset();
+ return bitmap;
+ }
+
+ /**淇濆瓨bitmap鍒版枃浠�*/
+ public static void saveBitmapToFile(Bitmap bitmap) {
+ // 瀹氫箟鍥剧墖鐨勪繚瀛樿矾寰勫拰鏂囦欢鍚�
+ String fileName = "IMG_" + System.currentTimeMillis() + ".jpg";
+ String filePath = Environment.getExternalStoragePublicDirectory(DIRECTORY_DOCUMENTS).getAbsolutePath() + "/yc_test"+ File.separator + fileName;
+ try(
+ FileOutputStream fos = new FileOutputStream(filePath);
+ BufferedOutputStream bos = new BufferedOutputStream(fos);
+ ){
+ bitmap.compress(Bitmap.CompressFormat.JPEG, 99, bos);
+ } catch (FileNotFoundException e) {
+ e.printStackTrace();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }finally {
+ bitmap.recycle();
+ }
+ }
+
+ /**
+ * 閬垮厤涓棿鐨刡yte鏁扮粍杞崲姝ラ锛岀洿鎺ヤ粠YuvImage鍐欏叆ByteBuffer锛岀劧鍚庝娇鐢˙itmapFactory鐨勭浉搴旀柟娉曠洿鎺ヤ粠ByteBuffer鍒涘缓Bitmap
+ * */
+ /*public static Bitmap yuvToBitmap(Image image, int width, int height) {
+ //鑾峰彇YUV鏁版嵁
+ *//*int I420size = image.getWidth()*image.getHeight()*3/2;
+ byte[] nv21 = new byte[I420size];
+ Image.Plane[] planes = image.getPlanes();
+ int remaining0 = planes[0].getBuffer().remaining();
+ int remaining1 = planes[1].getBuffer().remaining();
+ int remaining2 = planes[2].getBuffer().remaining();
+ //鍒嗗埆鍑嗗涓変釜鏁扮粍鎺ユ敹YUV鍒嗛噺銆�
+ byte[] yRawSrcBytes = new byte[remaining0];
+ byte[] uRawSrcBytes = new byte[remaining1];
+ byte[] vRawSrcBytes = new byte[remaining2];
+ planes[0].getBuffer().get(yRawSrcBytes);
+ planes[1].getBuffer().get(uRawSrcBytes);
+ planes[2].getBuffer().get(vRawSrcBytes);*//*
+
+ int W = image.getWidth();
+ int H = image.getHeight();
+
+ Image.Plane Y = image.getPlanes()[0];
+ Image.Plane U = image.getPlanes()[1];
+ Image.Plane V = image.getPlanes()[2];
+
+ int Yb = Y.getBuffer().remaining();
+ int Ub = U.getBuffer().remaining();
+ int Vb = V.getBuffer().remaining();
+
+ byte[] data = new byte[Yb + Ub + Vb];
+
+
+ Y.getBuffer().get(data, 0, Yb);
+ V.getBuffer().get(data, Yb, Vb);
+ U.getBuffer().get(data, Yb + Vb, Ub);
+
+
+
+ RenderScript rs = RenderScript.create(context);
+ ScriptIntrinsicYuvToRGB yuvToRgbIntrinsic = ScriptIntrinsicYuvToRGB.create(rs, Element.U8_4(rs));
+
+ Type.Builder yuvType = new Type.Builder(rs, Element.U8(rs)).setX(data.length);
+ Allocation in = Allocation.createTyped(rs, yuvType.create(), Allocation.USAGE_SCRIPT);
+
+ Type.Builder rgbaType = new Type.Builder(rs, Element.RGBA_8888(rs)).setX(W).setY(H);
+ Allocation out = Allocation.createTyped(rs, rgbaType.create(), Allocation.USAGE_SCRIPT);
+
+ final Bitmap bmpout = Bitmap.createBitmap(W, H, Bitmap.Config.ARGB_8888);
+
+ in.copyFromUnchecked(data);
+
+ yuvToRgbIntrinsic.setInput(in);
+ yuvToRgbIntrinsic.forEach(out);
+ out.copyTo(bmpout);
+ image.close();
+ return bmpout ;
+ }*/
}
--
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