从blackberry的mp3文件中获取字节

Question

如何从黑莓中的音频文件中获取字节。我使用了文件选择器并上传了音频。 我试过了 -

FileConnection fc= (FileConnection)Connector.open(sel);
InputStream is=fc.openInputStream();
ReimgData = IOUtilities.streamToBytes(is);

我必须使用任何编码方法吗？。

在图像编码上，我们使用以下代码进行编码

                    EncodedImage encode_image =EncodedImage.createEncodedImage(ReimgData, 0, (int)fc.fileSize());
                    JPEGEncodedImage encoder=JPEGEncodedImage.encode(encode_image.getBitmap(),50);
                    byte[] array=encoder.getData();
                    // Decodes the image represented by this EncodedImage and returns a Bitmap
                    int length=array.length;
                    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(length);
                    Base64OutputStream base64OutputStream = new Base64OutputStream( byteArrayOutputStream );
                     try{
                                     base64OutputStream.write( array, 0, length );
                                     base64OutputStream.flush();
                                     base64OutputStream.close();
                                 }
                                    catch (IOException ioe){
                                    //Dialog.alert("Error in encodeBase64() : "+ioe.toString());
                                    System.out.println("Error in encodeBase64() : "+ioe.toString());

                                 }

                                 //----Decoding image

                                 try
                                 {
                                    System.out.print(byteArrayOutputStream.toString());
                                      //Dialog.alert(byteArrayOutputStream.toString()+"");
                                      data = Base64InputStream.decode(byteArrayOutputStream.toString());

Answer 1

您可以按如下方式读取音频文件（或任何文件）中的字节：

FileConnection file = (FileConnection)Connector.open("yourfile.mp3");
InputStream audioStream = file.openInputStream();

byte[] audioData = IOUtilities.streamToBytes(audioStream);
audioStream.close();
file.close();