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      1 /*
      2  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef MediaFragmentURIParser_h
     27 #define MediaFragmentURIParser_h
     28 
     29 #include "weborigin/KURL.h"
     30 #include "wtf/Vector.h"
     31 
     32 namespace WebCore {
     33 
     34 class KURL;
     35 
     36 class MediaFragmentURIParser FINAL {
     37 public:
     38 
     39     MediaFragmentURIParser(const KURL&);
     40 
     41     double startTime();
     42     double endTime();
     43 
     44     static double invalidTimeValue();
     45 
     46 private:
     47 
     48     void parseFragments();
     49 
     50     enum TimeFormat { None, Invalid, NormalPlayTime, SMPTETimeCode, WallClockTimeCode };
     51     void parseTimeFragment();
     52     bool parseNPTFragment(const LChar*, unsigned length, double& startTime, double& endTime);
     53     bool parseNPTTime(const LChar*, unsigned length, unsigned& offset, double& time);
     54 
     55     KURL m_url;
     56     TimeFormat m_timeFormat;
     57     double m_startTime;
     58     double m_endTime;
     59     Vector<std::pair<String, String> > m_fragments;
     60 };
     61 
     62 } // namespace WebCore
     63 
     64 #endif
     65