BitmapUtil.java 文件源码

public static byte[] createFromNV21(@NonNull final byte[] data,
                                    final int width,
                                    final int height,
                                    int rotation,
                                    final Rect croppingRect)
    throws IOException
{
  byte[] rotated = rotateNV21(data, width, height, rotation);
  final int rotatedWidth  = rotation % 180 > 0 ? height : width;
  final int rotatedHeight = rotation % 180 > 0 ? width  : height;
  YuvImage previewImage = new YuvImage(rotated, ImageFormat.NV21,
                                       rotatedWidth, rotatedHeight, null);

  ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
  previewImage.compressToJpeg(croppingRect, 80, outputStream);
  byte[] bytes = outputStream.toByteArray();
  outputStream.close();
  return bytes;
}