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      1 ///////////////////////////////////////////////////////////////////////////
      2 //
      3 // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
      4 // Digital Ltd. LLC
      5 //
      6 // All rights reserved.
      7 //
      8 // Redistribution and use in source and binary forms, with or without
      9 // modification, are permitted provided that the following conditions are
     10 // met:
     11 // *       Redistributions of source code must retain the above copyright
     12 // notice, this list of conditions and the following disclaimer.
     13 // *       Redistributions in binary form must reproduce the above
     14 // copyright notice, this list of conditions and the following disclaimer
     15 // in the documentation and/or other materials provided with the
     16 // distribution.
     17 // *       Neither the name of Industrial Light & Magic nor the names of
     18 // its contributors may be used to endorse or promote products derived
     19 // from this software without specific prior written permission.
     20 //
     21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32 //
     33 ///////////////////////////////////////////////////////////////////////////
     34 
     35 
     36 #ifndef INCLUDED_IMF_KEY_CODE_H
     37 #define INCLUDED_IMF_KEY_CODE_H
     38 
     39 //-----------------------------------------------------------------------------
     40 //
     41 //	class KeyCode
     42 //
     43 // 	A KeyCode object uniquely identifies a motion picture film frame.
     44 // 	The following fields specifiy film manufacturer, film type, film
     45 // 	roll and the frame's position within the roll:
     46 //
     47 //	    filmMfcCode		film manufacturer code
     48 //				range: 0 - 99
     49 //
     50 //	    filmType		film type code
     51 // 				range: 0 - 99
     52 //
     53 //	    prefix		prefix to identify film roll
     54 // 				range: 0 - 999999
     55 //
     56 //	    count		count, increments once every perfsPerCount
     57 // 				perforations (see below)
     58 // 				range: 0 - 9999
     59 //
     60 //	    perfOffset		offset of frame, in perforations from
     61 // 				zero-frame reference mark
     62 // 				range: 0 - 119
     63 //
     64 //	    perfsPerFrame	number of perforations per frame
     65 // 				range: 1 - 15
     66 //
     67 //				typical values:
     68 //
     69 //				    1 for 16mm film
     70 //				    3, 4, or 8 for 35mm film
     71 //				    5, 8 or 15 for 65mm film
     72 //
     73 //	    perfsPerCount	number of perforations per count
     74 // 				range: 20 - 120
     75 //
     76 //				typical values:
     77 //
     78 //				    20 for 16mm film
     79 //				    64 for 35mm film
     80 //				    80 or 120 for 65mm film
     81 //
     82 // 	For more information about the interpretation of those fields see
     83 // 	the following standards and recommended practice publications:
     84 //
     85 // 	    SMPTE 254	Motion-Picture Film (35-mm) - Manufacturer-Printed
     86 // 			Latent Image Identification Information
     87 //
     88 // 	    SMPTE 268M 	File Format for Digital Moving-Picture Exchange (DPX)
     89 // 			(section 6.1)
     90 //
     91 // 	    SMPTE 270	Motion-Picture Film (65-mm) - Manufacturer- Printed
     92 // 			Latent Image Identification Information
     93 //
     94 // 	    SMPTE 271	Motion-Picture Film (16-mm) - Manufacturer- Printed
     95 // 			Latent Image Identification Information
     96 //
     97 //-----------------------------------------------------------------------------
     98 
     99 namespace Imf {
    100 
    101 
    102 class KeyCode
    103 {
    104   public:
    105 
    106     //-------------------------------------
    107     // Constructors and assignment operator
    108     //-------------------------------------
    109 
    110     KeyCode (int filmMfcCode = 0,
    111          int filmType = 0,
    112          int prefix = 0,
    113          int count = 0,
    114          int perfOffset = 0,
    115          int perfsPerFrame = 4,
    116          int perfsPerCount = 64);
    117 
    118     KeyCode (const KeyCode &other);
    119     KeyCode & operator = (const KeyCode &other);
    120 
    121 
    122     //----------------------------
    123     // Access to individual fields
    124     //----------------------------
    125 
    126     int		filmMfcCode () const;
    127     void	setFilmMfcCode (int filmMfcCode);
    128 
    129     int		filmType () const;
    130     void	setFilmType (int filmType);
    131 
    132     int		prefix () const;
    133     void	setPrefix (int prefix);
    134 
    135     int		count () const;
    136     void	setCount (int count);
    137 
    138     int		perfOffset () const;
    139     void	setPerfOffset (int perfOffset);
    140 
    141     int		perfsPerFrame () const;
    142     void	setPerfsPerFrame (int perfsPerFrame);
    143 
    144     int		perfsPerCount () const;
    145     void	setPerfsPerCount (int perfsPerCount);
    146 
    147   private:
    148 
    149     int		_filmMfcCode;
    150     int		_filmType;
    151     int		_prefix;
    152     int		_count;
    153     int		_perfOffset;
    154     int		_perfsPerFrame;
    155     int		_perfsPerCount;
    156 };
    157 
    158 
    159 } // namespace Imf
    160 
    161 #endif
    162