AudioMetaDataTaskHandler.java

        // NOTE: files other than m4a are probably streamable but we can only generate waveforms for m4a
        if ("audio/m4a".equals(task.getContentType()) || "audio/x-m4a".equals(task.getContentType()) || "audio/mp4".equals(task.getContentType())) {
            InputStream objectContent = null;
            try {
                objectContent = new FileInputStream(new File(workingDir, input));
                if (new FastStartChecker().check(objectContent)) {
                    metadata.put(META_DATA_STREAMABLE, true);
                } else {
                    metadata.put(META_DATA_STREAMABLE, false);
                }