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      1 // Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      2 //
      3 // Use of this source code is governed by a BSD-style license
      4 // that can be found in the LICENSE file in the root of the source
      5 // tree. An additional intellectual property rights grant can be found
      6 // in the file PATENTS.  All contributing project authors may
      7 // be found in the AUTHORS file in the root of the source tree.
      8 #ifndef MKVPARSER_MKVREADER_H_
      9 #define MKVPARSER_MKVREADER_H_
     10 
     11 #include <cstdio>
     12 
     13 #include "mkvparser/mkvparser.h"
     14 
     15 namespace mkvparser {
     16 
     17 class MkvReader : public IMkvReader {
     18  public:
     19   MkvReader();
     20   explicit MkvReader(FILE* fp);
     21   virtual ~MkvReader();
     22 
     23   int Open(const char*);
     24   void Close();
     25 
     26   virtual int Read(long long position, long length, unsigned char* buffer);
     27   virtual int Length(long long* total, long long* available);
     28 
     29  private:
     30   MkvReader(const MkvReader&);
     31   MkvReader& operator=(const MkvReader&);
     32 
     33   // Determines the size of the file. This is called either by the constructor
     34   // or by the Open function depending on file ownership. Returns true on
     35   // success.
     36   bool GetFileSize();
     37 
     38   long long m_length;
     39   FILE* m_file;
     40   bool reader_owns_file_;
     41 };
     42 
     43 }  // namespace mkvparser
     44 
     45 #endif  // MKVPARSER_MKVREADER_H_
     46