YUV拍照Hdr
liuguijing
3 months ago
parent
4b9232f549
commit
e5026556f6
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package com.xypower.mppreview.utils;
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import static com.xypower.mppreview.utils.HdrUtil.generateTimestamp;
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import android.graphics.Bitmap;
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import android.graphics.ImageFormat;
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import android.media.Image;
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import android.os.Environment;
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import android.renderscript.Allocation;
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import android.renderscript.Element;
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import android.renderscript.RenderScript;
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import android.renderscript.ScriptIntrinsicYuvToRGB;
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import android.renderscript.Type;
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import android.util.Log;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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public class ImageConverterUtil {
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private final String TAG = "ImageConverterUtil";
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public void saveYuvImageFromImageReader(Image image, RenderScript rs, String i) {
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// Image image = null;
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try {
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// // Acquire the latest image from ImageReader
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// image = imageReader.acquireLatestImage();
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// if (image == null) {
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// Log.e(TAG, "No image available");
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// return;
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// }
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// Convert Image to Bitmap directly using RenderScript
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Bitmap bitmap = imageYuvToBitmap(image, rs);
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// Save the bitmap to file (PNG format to avoid lossy compression)
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saveBitmapToFile(bitmap, i);
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Log.d(TAG, "Image saved successfully");
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} catch (Exception e) {
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Log.e(TAG, "Error saving image: " + e.getMessage());
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} finally {
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if (image != null) {
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image.close();
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}
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}
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}
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private Bitmap imageYuvToBitmap(Image image, RenderScript rs) {
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if (image.getFormat() != ImageFormat.YUV_420_888) {
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throw new IllegalArgumentException("Only YUV_420_888 format is supported");
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}
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int width = image.getWidth();
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int height = image.getHeight();
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// Convert YUV to NV21 format
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byte[] nv21Data = yuv420ToNv21(image);
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// Create output bitmap
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Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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// Use RenderScript for YUV to RGB conversion (more efficient)
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Allocation inputAllocation = Allocation.createSized(rs, Element.U8(rs), nv21Data.length);
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inputAllocation.copyFrom(nv21Data);
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Type.Builder yuvType = new Type.Builder(rs, Element.U8(rs))
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.setX(width)
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.setY(height)
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.setYuvFormat(ImageFormat.NV21);
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Allocation yuvAllocation = Allocation.createTyped(rs, yuvType.create(), Allocation.USAGE_SCRIPT);
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yuvAllocation.copyFrom(nv21Data);
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Allocation outputAllocation = Allocation.createFromBitmap(rs, bitmap);
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ScriptIntrinsicYuvToRGB yuvToRgbScript = ScriptIntrinsicYuvToRGB.create(rs, Element.U8_4(rs));
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yuvToRgbScript.setInput(yuvAllocation);
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yuvToRgbScript.forEach(outputAllocation);
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outputAllocation.copyTo(bitmap);
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// Clean up allocations
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inputAllocation.destroy();
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yuvAllocation.destroy();
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outputAllocation.destroy();
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yuvToRgbScript.destroy();
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return bitmap;
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}
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private byte[] yuv420ToNv21(Image image) {
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Image.Plane[] planes = image.getPlanes();
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ByteBuffer yBuffer = planes[0].getBuffer();
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ByteBuffer uBuffer = planes[1].getBuffer();
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ByteBuffer vBuffer = planes[2].getBuffer();
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int ySize = yBuffer.remaining();
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int width = image.getWidth();
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int height = image.getHeight();
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int uvSize = width * height / 4; // U and V are quarter size
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byte[] nv21 = new byte[ySize + uvSize * 2];
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// Copy Y plane as-is
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yBuffer.get(nv21, 0, ySize);
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// Interleave V and U planes into NV21 format (which is really NV12 with U and V swapped)
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int uvRowStride = planes[1].getRowStride();
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int uvPixelStride = planes[1].getPixelStride();
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int pos = ySize;
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for (int row = 0; row < height / 2; row++) {
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for (int col = 0; col < width / 2; col++) {
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int vuPos = col * uvPixelStride + row * uvRowStride;
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nv21[pos++] = vBuffer.get(vuPos);
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nv21[pos++] = uBuffer.get(vuPos);
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}
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}
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return nv21;
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}
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// Alternative method using direct YUV-to-RGB color space conversion
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private Bitmap yuvImageToBitmapDirect(Image image) {
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if (image.getFormat() != ImageFormat.YUV_420_888) {
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throw new IllegalArgumentException("Only YUV_420_888 format is supported");
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}
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int width = image.getWidth();
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int height = image.getHeight();
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Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
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// Get YUV data
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Image.Plane[] planes = image.getPlanes();
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ByteBuffer yBuffer = planes[0].getBuffer();
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ByteBuffer uBuffer = planes[1].getBuffer();
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ByteBuffer vBuffer = planes[2].getBuffer();
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int yRowStride = planes[0].getRowStride();
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int uvRowStride = planes[1].getRowStride();
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int uvPixelStride = planes[1].getPixelStride();
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// Convert YUV to RGB directly, pixel by pixel
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int[] rgbData = new int[width * height];
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for (int j = 0; j < height; j++) {
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for (int i = 0; i < width; i++) {
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int yIndex = j * yRowStride + i;
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int uvJ = j / 2;
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int uvI = i / 2;
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int uvIndex = uvJ * uvRowStride + uvI * uvPixelStride;
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int y = yBuffer.get(yIndex) & 0xFF;
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int u = uBuffer.get(uvIndex) & 0xFF;
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int v = vBuffer.get(uvIndex) & 0xFF;
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// YUV to RGB conversion
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y = y - 16;
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u = u - 128;
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v = v - 128;
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int r = (int) (1.164 * y + 1.596 * v);
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int g = (int) (1.164 * y - 0.813 * v - 0.391 * u);
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int b = (int) (1.164 * y + 2.018 * u);
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// Clamp RGB values
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r = r > 255 ? 255 : (r < 0 ? 0 : r);
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g = g > 255 ? 255 : (g < 0 ? 0 : g);
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b = b > 255 ? 255 : (b < 0 ? 0 : b);
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rgbData[j * width + i] = 0xFF000000 | (r << 16) | (g << 8) | b;
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}
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}
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bitmap.setPixels(rgbData, 0, width, 0, 0, width, height);
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return bitmap;
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}
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private void saveBitmapToFile(Bitmap bitmap, String fileName) throws IOException {
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// File picturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
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File picturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
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File outputFile = new File(picturesDir, "YUV_" + generateTimestamp() + "_" + fileName + ".bmp");
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FileOutputStream outputStream = new FileOutputStream(outputFile);
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bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
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outputStream.flush();
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outputStream.close();
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}
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}
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@ -0,0 +1,37 @@
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package com.xypower.mppreview.utils;
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import java.io.IOException;
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public class RouteManager {
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// 添加路由
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public static void addRoute(String network, String interfaceName) {
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try {
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// 构建命令
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String command = "ip route add " + network + " dev " + interfaceName+" proto static scope link table ccmni1";
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// 执行命令
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Process process = Runtime.getRuntime().exec(command);
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// 等待命令执行完成
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process.waitFor();
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String command2 = "ip route add " + network + " dev " + interfaceName+" proto static scope link table ccmni0";
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// 执行命令
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Process process2 = Runtime.getRuntime().exec(command2);
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// 等待命令执行完成
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process2.waitFor();
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// 检查命令是否成功
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if (process.exitValue() == 0) {
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System.out.println("Route added successfully: " + command);
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} else {
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System.err.println("Failed to add route: " + command);
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}
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} catch (IOException | InterruptedException e) {
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e.printStackTrace();
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}
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}
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// public static void main(String[] args) {
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// // 示例：添加 192.168.2.0/24 网段的路由到 eth0 接口
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// addRoute("192.168.68.0/24", "eth0");
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// }
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}
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