[jira] [Created] (TIKA-1214) Infinity Loop in Mpeg Stream

["Georg Hartmann (JIRA)" <ji...@apache.org>]

Georg Hartmann created TIKA-1214:
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             Summary: Infinity Loop in Mpeg Stream
                 Key: TIKA-1214
                 URL: https://issues.apache.org/jira/browse/TIKA-1214
             Project: Tika
          Issue Type: Bug
          Components: parser
    Affects Versions: 1.4
         Environment: local system
            Reporter: Georg Hartmann
             Fix For: 1.5


Scanning MP3 Files accounter a infiniy loop in the MpegStream Method skipStream

The Call of in.skip returnes zero so the loop never ends.

Simple fix with zero count below

    private static void skipStream(InputStream in, long count) throws IOException {
        long size = count;
        long skipped = 0;
        // 5 Times zero equals Error break the loop
        int zeroCount = 5;
        while (size > 0 && skipped >= 0) {
            skipped = in.skip(size);
            if (skipped != -1) {
                size -= skipped;
            }
            
            // Checking for zero to break the infinity loop
            if (skipped == 0) {
                zeroCount--;
            }
            if (zeroCount < 0) {
                break;
            }
        }
    }



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