从文件读取字节

Question

I am reading from a ".264" file using code below.

public static void main (String[] args) throws IOException
{

    BufferedReader br = null;try {
        String sCurrentLine;
        br = new BufferedReader(new InputStreamReader(new FileInputStream("test.264"),"ISO-8859-1"));
        StringBuffer stringBuffer = new StringBuffer();
        while ((sCurrentLine = br.readLine()) != null) {
            stringBuffer.append(sCurrentLine);      
        }
        String tempdec = new String(asciiToHex(stringBuffer.toString()));
        System.out.println(tempdec);
        String asciiEquivalent = hexToASCII(tempdec);
        BufferedWriter xx = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("C:/Users/Administrator/Desktop/yuvplayer-2.3/video dinalized/testret.264"),"ISO-8859-1"));
        xx.write(asciiEquivalent);
        xx.close();
    }catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (br != null)br.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

}

Opening input and output file in HEX Editor show me some missing values, eg 0d (see pictures attached).

Any solution to fix this?

Answer 1

Lose InputStreamReader and BufferedReader , just use FileInputStream on its own.
No character encoding, no line endings, just bytes.
Its Javadoc page is here , that should be all you need.

Tip if you want to read the entire file at once: File.length() , as in

File file = new File("test.264");
byte[] buf = new byte[(int)file.length()];
// Use buf in InputStream.read()