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android.graphics.YuvImage.()方法的使用及代码示例

转载 作者:知者 更新时间:2024-03-16 19:10:40 25 4
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本文整理了Java中android.graphics.YuvImage.<init>()方法的一些代码示例,展示了YuvImage.<init>()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。YuvImage.<init>()方法的具体详情如下:
包路径:android.graphics.YuvImage
类名称:YuvImage
方法名:<init>

YuvImage.<init>介绍

暂无

代码示例

代码示例来源:origin: journeyapps/zxing-android-embedded

private Bitmap getBitmap(Rect cropRect, int scaleFactor) {
  if(isRotated()) {
    //noinspection SuspiciousNameCombination
    cropRect = new Rect(cropRect.top, cropRect.left, cropRect.bottom, cropRect.right);
  }
  // TODO: there should be a way to do this without JPEG compression / decompression cycle.
  YuvImage img = new YuvImage(data, imageFormat, dataWidth, dataHeight, null);
  ByteArrayOutputStream buffer = new ByteArrayOutputStream();
  img.compressToJpeg(cropRect, 90, buffer);
  byte[] jpegData = buffer.toByteArray();
  BitmapFactory.Options options = new BitmapFactory.Options();
  options.inSampleSize = scaleFactor;
  Bitmap bitmap = BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, options);
  // Rotate if required
  if (rotation != 0) {
    Matrix imageMatrix = new Matrix();
    imageMatrix.postRotate(rotation);
    bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), imageMatrix, false);
  }
  return bitmap;
}

代码示例来源:origin: twilio/video-quickstart-android

private YuvImage fastI420ToYuvImage(ByteBuffer[] yuvPlanes,
                  int[] yuvStrides,
                  int width,
                  int height) {
  byte[] bytes = new byte[width * height * 3 / 2];
  int i = 0;
  for (int row = 0 ; row < height ; row++) {
    for (int col = 0 ; col < width ; col++) {
      bytes[i++] = yuvPlanes[0].get(col + row * yuvStrides[0]);
    }
  }
  for (int row = 0 ; row < height / 2 ; row++) {
    for (int col = 0 ; col < width / 2; col++) {
      bytes[i++] = yuvPlanes[2].get(col + row * yuvStrides[2]);
      bytes[i++] = yuvPlanes[1].get(col + row * yuvStrides[1]);
    }
  }
  return new YuvImage(bytes, NV21, width, height, null);
}

代码示例来源:origin: EasyDSS/EasyCamera

private void yuvToJpeg(byte[] data, int width, int height, int quality, String path) throws IOException {
  YuvImage yuvimage = new YuvImage(data, ImageFormat.NV21, width, height, null);
  FileOutputStream fos = null;
  try {
    fos = new FileOutputStream(path);
    yuvimage.compressToJpeg(new Rect(0, 0, width, height), quality, fos);
  } finally {
    if (fos != null) {
      fos.close();
    }
  }
}

代码示例来源:origin: WangShuo1143368701/VideoView

public Bitmap decodeToBitMap(byte[] data) {
  Bitmap bmp = null;
  try {
    YuvImage image = new YuvImage(data, ImageFormat.NV21, width, width, null);
    if (image != null) {
      Log.d("Fuck", "image != null");
      ByteArrayOutputStream stream = new ByteArrayOutputStream();
      image.compressToJpeg(new Rect(0, 0, width, width), 80, stream);
      bmp = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());
      stream.close();
    }
  } catch (Exception ex) {
    Log.e("Fuck", "Error:" + ex.getMessage());
  }
  return bmp;
}

代码示例来源:origin: FacePlusPlus/MegviiFacepp-Android-SDK

public static Bitmap decodeToBitMap(byte[] data, Camera _camera) {
  Camera.Size size = _camera.getParameters().getPreviewSize();
  try {
    YuvImage image = new YuvImage(data, ImageFormat.NV21, size.width, size.height, null);
    if (image != null) {
      ByteArrayOutputStream stream = new ByteArrayOutputStream();
      image.compressToJpeg(new Rect(0, 0, size.width, size.height), 80, stream);
      Bitmap bmp = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size());
      stream.close();
      return bmp;
    }
  } catch (Exception ex) {
  }
  return null;
}

代码示例来源:origin: zhantong/Android-VideoToImages

private void compressToJpeg(String fileName, Image image) {
    FileOutputStream outStream;
    try {
      outStream = new FileOutputStream(fileName);
    } catch (IOException ioe) {
      throw new RuntimeException("Unable to create output file " + fileName, ioe);
    }
    Rect rect = image.getCropRect();
    YuvImage yuvImage = new YuvImage(getDataFromImage(image, COLOR_FormatNV21), ImageFormat.NV21, rect.width(), rect.height(), null);
    yuvImage.compressToJpeg(rect, 100, outStream);
  }
}

代码示例来源:origin: Lucklyric/android-camera-socket-stream

/**
 * frame call back function
 * @param data
 * @param camera
 */
public void onPreviewFrame(byte[] data,Camera camera){
  try{
    //convert YuvImage(NV21) to JPEG Image data
    YuvImage yuvimage=new YuvImage(data,ImageFormat.NV21,this.width,this.height,null);
    System.out.println("WidthandHeight"+yuvimage.getHeight()+"::"+yuvimage.getWidth());
    ByteArrayOutputStream baos=new ByteArrayOutputStream();
    yuvimage.compressToJpeg(new Rect(0,0,this.width,this.height),100,baos);
    mFrameBuffer = baos;
  }catch(Exception e){
    Log.d("parse","errpr");
  }
}

代码示例来源:origin: FacePlusPlus/MegviiFacepp-Android-SDK

public Bitmap getBitMap(byte[] data, Camera camera, boolean mIsFrontalCamera) {
  int width = camera.getParameters().getPreviewSize().width;
  int height = camera.getParameters().getPreviewSize().height;
  YuvImage yuvImage = new YuvImage(data, camera.getParameters()
      .getPreviewFormat(), width, height, null);
  ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

代码示例来源:origin: Car-eye-team/Car-eye-device

YuvImage image = new YuvImage(data,
    ImageFormat.NV21, width, height,
    null);

代码示例来源:origin: fanbaoying/FBYIDCardRecognition-Android

private void onRequestDetect(byte[] data) {
  // 相机已经关闭
  if (camera == null || data == null) {
    return;
  }
  YuvImage img = new YuvImage(data, ImageFormat.NV21, optSize.width, optSize.height, null);
  ByteArrayOutputStream os = null;
  try {
    os = new ByteArrayOutputStream(data.length);
    img.compressToJpeg(new Rect(0, 0, optSize.width, optSize.height), 80, os);
    byte[] jpeg = os.toByteArray();
    int status = detectCallback.onDetect(jpeg, getCameraRotation());
    if (status == 0) {
      clearPreviewCallback();
    }
  } catch (OutOfMemoryError e) {
    // 内存溢出则取消当次操作
  } finally {
    try {
      os.close();
    } catch (Throwable e) {
      e.printStackTrace();
    }
  }
}

代码示例来源:origin: 465857721/IDCardOCR_China

YuvImage yuvimage = new YuvImage(
    data,
    ImageFormat.NV21,

代码示例来源:origin: FacePlusPlus/MegviiFacepp-Android-SDK

public Bitmap getBitMapWithRect(byte[] data, Camera camera, boolean mIsFrontalCamera,Rect rect) {
  int width = camera.getParameters().getPreviewSize().width;
  int height = camera.getParameters().getPreviewSize().height;
  YuvImage yuvImage = new YuvImage(data, camera.getParameters()
      .getPreviewFormat(), width, height, null);
  ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();

代码示例来源:origin: Affectiva/affdexme-android

public static Bitmap getBitmapFromYuvFrame(@NonNull final Frame frame) {
  byte[] pixels = ((Frame.ByteArrayFrame) frame).getByteArray();
  YuvImage yuvImage = new YuvImage(pixels, ImageFormat.NV21, frame.getWidth(), frame.getHeight(), null);
  return convertYuvImageToBitmap(yuvImage);
}

代码示例来源:origin: tony-Shx/Swface

fos = new FileOutputStream(f);
if (data.length < 35000) {
  YuvImage image = new YuvImage(nv21, ImageFormat.NV21, PREVIEW_WIDTH, PREVIEW_HEIGHT, null);   //将NV21 data保存成YuvImage

代码示例来源:origin: tony-Shx/Swface

fos = new FileOutputStream(f);
if (data.length < 35000) {
  YuvImage image = new YuvImage(nv21, ImageFormat.NV21, PREVIEW_WIDTH, PREVIEW_HEIGHT, null);   //将NV21 data保存成YuvImage

代码示例来源:origin: dalong982242260/SmallVideoRecording

@Override
      public void onPreviewFrame(byte[] data, Camera camera) {
        camera.setPreviewCallback(null);
        if (mCamera == null)
          return;
        Camera.Parameters parameters = camera.getParameters();
        int width = parameters.getPreviewSize().width;
        int height = parameters.getPreviewSize().height;

        YuvImage yuv = new YuvImage(data, parameters.getPreviewFormat(), width, height, null);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        yuv.compressToJpeg(new Rect(0, 0, width, height), 50, out);
        byte[] bytes = out.toByteArray();
        if (mRecordVideoInterface != null) {
          mRecordVideoInterface.onTakePhoto(bytes);
        }
        //设置这个可以达到预览的效果
//                mCamera.setPreviewCallback(this);
      }
    });

代码示例来源:origin: cmusatyalab/gabriel

synchronized (frameLock) {
  Size cameraImageSize = parameters.getPreviewSize();
  YuvImage image = new YuvImage(frame, parameters.getPreviewFormat(), cameraImageSize.width,
      cameraImageSize.height, null);
  ByteArrayOutputStream tmpBuffer = new ByteArrayOutputStream();

代码示例来源:origin: SiKang123/ocrTest

int bottom = (int) (top + getResources().getDimension(R.dimen.x160));
final YuvImage image = new YuvImage(data, ImageFormat.NV21, size.width, size.height, null);
if (image != null) {
  ByteArrayOutputStream stream = new ByteArrayOutputStream();

代码示例来源:origin: twilio/video-quickstart-android

return new YuvImage(bytes, NV21, width, height, null);

代码示例来源:origin: LLhon/Android-Video-Editor

int width = parameters.getPreviewSize().width;
int height = parameters.getPreviewSize().height;
YuvImage yuv = new YuvImage(firstFrame_data, parameters.getPreviewFormat(), width, height, null);
ByteArrayOutputStream out = new ByteArrayOutputStream();
yuv.compressToJpeg(new Rect(0, 0, width, height), 50, out);

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