Method ByBuffer_URL

Source/Example/HowToUse_Dll.java:154–254

(String FileName)

}

private static void ByBuffer_URL(String FileName) throws Exception
{
    String Amazon_S3_Date = new String(); // Amazon only
    String Amazon_S3_Authorization = new String(); // Amazon only

    // Parsing user input
    FileName = FileName.replace(" ", "%20");
    int FileName_Amazon_S3_End = FileName.indexOf("@s3.amazonaws.com/"); //Testing if Amazon is used and a AccessKeyId/SecretAccessKey is provided, TODO: use a less ugly method
    if (FileName_Amazon_S3_End != -1)
    {
        // Amazon only, computing the Authorization value
        // See http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html
        int FileName_Amazon_S3_Begin = FileName.indexOf("://") + 3;
        int FileName_Amazon_S3_Middle = FileName.indexOf(":", FileName_Amazon_S3_Begin);
        String Amazon_S3_AWSAccessKeyId = FileName.substring(FileName_Amazon_S3_Begin, FileName_Amazon_S3_Middle);
        String Amazon_S3_AWSSecretAccessKey = FileName.substring(FileName_Amazon_S3_Middle + 1, FileName_Amazon_S3_End);
        FileName = FileName.replace(FileName.substring(FileName_Amazon_S3_Begin, FileName_Amazon_S3_End + 1), new String());
        Amazon_S3_Date = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss Z", Locale.US).format(new Date());
        String Amazon_S3_ToSign = "GET\n\n\n"+Amazon_S3_Date+"\n"+new URL(FileName).getPath();
        Amazon_S3_Authorization = "AWS "+Amazon_S3_AWSAccessKeyId+":"+calculateHmacSHA1(Amazon_S3_ToSign, Amazon_S3_AWSSecretAccessKey);
    }
    URL FileUrl = new URL(FileName);

    //From: preparing an example file for reading
    HttpURLConnection HttpFrom = (HttpURLConnection ) FileUrl.openConnection();
    if (!Amazon_S3_Authorization.isEmpty())
    {
        HttpFrom.setRequestProperty("Date", Amazon_S3_Date); // Amazon only
        HttpFrom.setRequestProperty("Authorization", Amazon_S3_Authorization); // Amazon only
    }
    HttpFrom.connect();
    if (HttpFrom.getResponseCode() != 200)
    {
        java.util.Scanner S = new java.util.Scanner(HttpFrom.getErrorStream());
        S.useDelimiter("\\Z");
        System.out.println(S.next());
        return;
    }
    InputStream From = HttpFrom.getInputStream();
    long From_Length = Long.parseLong(HttpFrom.getHeaderField("Content-Length")); //.getContentLengthLong(), for 2GB+ file support is available only in Java 7 and lot of distros have Java 6

    //From: preparing a memory buffer for reading
    byte[] From_Buffer = new byte[64*1024];
    int    From_Buffer_Size; //The size of the read file buffer

    //Initializing MediaInfo
    MediaInfo MI = new MediaInfo();

    //Preparing to fill MediaInfo with a buffer
    MI.Open_Buffer_Init(From_Length, 0);

    //The parsing loop
    do
    {
        //Reading data somewhere, do what you want for this.
        From_Buffer_Size = From.read(From_Buffer);

        //Sending the buffer to MediaInfo