libdcp
picture_asset_writer.h
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1 /*
2  Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
3 
4  This file is part of libdcp.
5 
6  libdcp is free software; you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
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9  (at your option) any later version.
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11  libdcp is distributed in the hope that it will be useful,
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20  permission to link the code of portions of this program with the
21  OpenSSL library under certain conditions as described in each
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25  You must obey the GNU General Public License in all respects
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32 */
33 
34 
40 #ifndef LIBDCP_PICTURE_ASSET_WRITER_H
41 #define LIBDCP_PICTURE_ASSET_WRITER_H
42 
43 
44 #include "asset_writer.h"
45 #include "metadata.h"
46 #include "types.h"
47 #include <boost/utility.hpp>
48 #include <memory>
49 #include <stdint.h>
50 #include <string>
51 
52 
53 namespace dcp {
54 
55 
56 class Data;
57 class PictureAsset;
58 
59 
63 struct FrameInfo
64 {
65  FrameInfo () {}
66 
67  FrameInfo (uint64_t o, uint64_t s, std::string h)
68  : offset (o)
69  , size (s)
70  , hash (h)
71  {}
72 
73  uint64_t offset = 0;
74  uint64_t size = 0;
75  std::string hash;
76 };
77 
78 
83 {
84 public:
85  virtual FrameInfo write (uint8_t const *, int) = 0;
86  virtual void fake_write (int) = 0;
87 
88  FrameInfo write (Data const& data);
89 
90 protected:
91  template <class P, class Q>
92  friend void start (PictureAssetWriter *, std::shared_ptr<P>, Q *, uint8_t const *, int);
93 
94  PictureAssetWriter (PictureAsset *, boost::filesystem::path, bool);
95 
96  PictureAsset* _picture_asset = nullptr;
97  bool _overwrite = false;
98 };
99 
100 
101 }
102 
103 
104 #endif
AssetWriter class.
Parent class for classes which can write MXF-based assets.
Definition: asset_writer.h:62
Definition: data.h:52
Parent class for classes which write picture assets.
An asset made up of JPEG2000 data.
Definition: picture_asset.h:68
MXFMetadata class.
Namespace for everything in libdcp.
Definition: array_data.h:50
Information about a single frame (either a monoscopic frame or a left or right eye stereoscopic frame...
Miscellaneous types.