chrome/common/media_galleries/pmp_constants.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_COMMON_MEDIA_GALLERIES_PMP_CONSTANTS_H_
   6 #define CHROME_COMMON_MEDIA_GALLERIES_PMP_CONSTANTS_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/time/time.h"
  12
  13 namespace picasa {
  14
  15 // PMP file format.
  16 // Info derived from: http://sbktech.blogspot.com/2011/12/picasa-pmp-format.html
  17
  18 const char kPmpExtension[] = "pmp";
  19
  20 const base::Time::Exploded kPmpVariantTimeEpoch = {
  21   1899, 12, 7, 30,  // Dec 30, 1899 (Saturday)
  22   0, 0, 0, 0        // 00:00:00.000
  23 };
  24
  25 const int64 kPmpHeaderSize = 20;
  26
  27 const int kPmpMagic1Offset = 0;
  28 const int kPmpMagic2Offset = 6;
  29 const int kPmpMagic3Offset = 8;
  30 const int kPmpMagic4Offset = 14;
  31
  32 const uint32 kPmpMagic1 = 0x3fcccccd;
  33 const uint16 kPmpMagic2 = 0x1332;
  34 const uint32 kPmpMagic3 = 0x00000002;
  35 const uint16 kPmpMagic4 = 0x1332;
  36
  37 const int kPmpFieldType1Offset = 4;
  38 const int kPmpFieldType2Offset = 12;
  39 const int kPmpRowCountOffset   = 16;
  40
  41 enum PmpFieldType {
  42   PMP_TYPE_STRING   = 0x00,
  43   PMP_TYPE_UINT32   = 0x01,
  44   PMP_TYPE_DOUBLE64 = 0x02,
  45   PMP_TYPE_UINT8    = 0x03,
  46   PMP_TYPE_UINT64   = 0x04,
  47   PMP_TYPE_INVALID  = 0xff
  48 };
  49
  50 }  // namespace picasa
  51
  52 #endif  // CHROME_COMMON_MEDIA_GALLERIES_PMP_CONSTANTS_H_