相关疑难解决方法(0)

我知道这个主题多次出现在主板上,但我无论如何都无法工作......我想保存从预览到jpeg文件的视图帧.它看起来或多或少(代码简化 - 没有额外的逻辑,例外等)像这样......

public void onPreviewFrame(byte[] data, Camera camera) {
  int width = camera.getParameters().getPreviewSize().width;
  int height = camera.getParameters().getPreviewSize().height;


  final int[] rgb = decodeYUV420SP(data, width, height);

  Bitmap bmp = Bitmap.createBitmap(rgb, width, height,Bitmap.Config.ARGB_8888);

  String filename="/sdcard/file" + (index++)+ ".jpg"; 
  FileOutputStream out;
  out = new FileOutputStream(filename);
  bmp.compress(Bitmap.CompressFormat.JPEG, 90, out);
  out.flush();
  out.close();
  out=null;

 }

这是我尝试转换颜色的方法之一(我相信这个板)

public int[] decodeYUV420SP( byte[] yuv420sp, int width, int height) {   

    final int frameSize = width * height;   

    int rgb[]=new int[width*height];   
    for (int j = 0, yp = 0; j < …