third_party/WebKit/Source/core/html/MediaFragmentURIParser.h

   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 "platform/weborigin/KURL.h"
  30 #include "wtf/Allocator.h"
  31 #include "wtf/Vector.h"
  32
  33 namespace blink {
  34
  35 class KURL;
  36
  37 class MediaFragmentURIParser final {
  38     STACK_ALLOCATED();
  39 public:
  40
  41     MediaFragmentURIParser(const KURL&);
  42
  43     double startTime();
  44     double endTime();
  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 blink
  63
  64 #endif