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275 lines
7.5 KiB
275 lines
7.5 KiB
/////////////////////////////////////////////////////////////////////////// |
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// |
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// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas |
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// Digital Ltd. LLC |
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// |
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// All rights reserved. |
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// |
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// Redistribution and use in source and binary forms, with or without |
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// modification, are permitted provided that the following conditions are |
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// met: |
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// * Redistributions of source code must retain the above copyright |
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// notice, this list of conditions and the following disclaimer. |
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// * Redistributions in binary form must reproduce the above |
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// copyright notice, this list of conditions and the following disclaimer |
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// in the documentation and/or other materials provided with the |
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// distribution. |
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// * Neither the name of Industrial Light & Magic nor the names of |
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// its contributors may be used to endorse or promote products derived |
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// from this software without specific prior written permission. |
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// |
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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// |
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/////////////////////////////////////////////////////////////////////////// |
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#ifndef INCLUDED_IMF_TIME_CODE_H |
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#define INCLUDED_IMF_TIME_CODE_H |
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#include "ImfExport.h" |
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#include "ImfNamespace.h" |
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//----------------------------------------------------------------------------- |
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// |
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// class TimeCode |
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// |
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// A TimeCode object stores time and control codes as described |
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// in SMPTE standard 12M-1999. A TimeCode object contains the |
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// following fields: |
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// |
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// Time Address: |
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// |
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// hours integer, range 0 - 23 |
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// minutes integer, range 0 - 59 |
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// seconds integer, range 0 - 59 |
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// frame integer, range 0 - 29 |
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// |
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// Flags: |
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// |
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// drop frame flag boolean |
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// color frame flag boolean |
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// field/phase flag boolean |
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// bgf0 boolean |
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// bgf1 boolean |
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// bgf2 boolean |
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// |
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// Binary groups for user-defined data and control codes: |
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// |
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// binary group 1 integer, range 0 - 15 |
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// binary group 2 integer, range 0 - 15 |
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// ... |
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// binary group 8 integer, range 0 - 15 |
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// |
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// Class TimeCode contains methods to convert between the fields |
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// listed above and a more compact representation where the fields |
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// are packed into two unsigned 32-bit integers. In the packed |
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// integer representations, bit 0 is the least significant bit, |
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// and bit 31 is the most significant bit of the integer value. |
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// |
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// The time address and flags fields can be packed in three |
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// different ways: |
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// |
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// bits packing for packing for packing for |
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// 24-frame 60-field 50-field |
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// film television television |
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// |
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// 0 - 3 frame units frame units frame units |
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// 4 - 5 frame tens frame tens frame tens |
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// 6 unused, set to 0 drop frame flag unused, set to 0 |
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// 7 unused, set to 0 color frame flag color frame flag |
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// 8 - 11 seconds units seconds units seconds units |
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// 12 - 14 seconds tens seconds tens seconds tens |
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// 15 phase flag field/phase flag bgf0 |
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// 16 - 19 minutes units minutes units minutes units |
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// 20 - 22 minutes tens minutes tens minutes tens |
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// 23 bgf0 bgf0 bgf2 |
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// 24 - 27 hours units hours units hours units |
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// 28 - 29 hours tens hours tens hours tens |
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// 30 bgf1 bgf1 bgf1 |
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// 31 bgf2 bgf2 field/phase flag |
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// |
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// User-defined data and control codes are packed as follows: |
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// |
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// bits field |
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// |
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// 0 - 3 binary group 1 |
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// 4 - 7 binary group 2 |
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// 8 - 11 binary group 3 |
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// 12 - 15 binary group 4 |
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// 16 - 19 binary group 5 |
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// 20 - 23 binary group 6 |
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// 24 - 27 binary group 7 |
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// 28 - 31 binary group 8 |
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// |
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//----------------------------------------------------------------------------- |
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER |
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class TimeCode |
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{ |
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public: |
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//--------------------- |
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// Bit packing variants |
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//--------------------- |
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enum Packing |
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{ |
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TV60_PACKING, // packing for 60-field television |
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TV50_PACKING, // packing for 50-field television |
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FILM24_PACKING // packing for 24-frame film |
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}; |
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//------------------------------------- |
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// Constructors and assignment operator |
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//------------------------------------- |
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IMF_EXPORT |
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TimeCode (); // all fields set to 0 or false |
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IMF_EXPORT |
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TimeCode (int hours, |
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int minutes, |
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int seconds, |
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int frame, |
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bool dropFrame = false, |
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bool colorFrame = false, |
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bool fieldPhase = false, |
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bool bgf0 = false, |
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bool bgf1 = false, |
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bool bgf2 = false, |
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int binaryGroup1 = 0, |
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int binaryGroup2 = 0, |
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int binaryGroup3 = 0, |
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int binaryGroup4 = 0, |
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int binaryGroup5 = 0, |
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int binaryGroup6 = 0, |
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int binaryGroup7 = 0, |
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int binaryGroup8 = 0); |
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IMF_EXPORT |
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TimeCode (unsigned int timeAndFlags, |
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unsigned int userData = 0, |
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Packing packing = TV60_PACKING); |
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IMF_EXPORT |
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TimeCode (const TimeCode &other); |
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IMF_EXPORT |
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TimeCode & operator = (const TimeCode &other); |
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//---------------------------- |
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// Access to individual fields |
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//---------------------------- |
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IMF_EXPORT |
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int hours () const; |
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IMF_EXPORT |
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void setHours (int value); |
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IMF_EXPORT |
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int minutes () const; |
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IMF_EXPORT |
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void setMinutes (int value); |
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IMF_EXPORT |
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int seconds () const; |
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IMF_EXPORT |
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void setSeconds (int value); |
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IMF_EXPORT |
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int frame () const; |
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IMF_EXPORT |
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void setFrame (int value); |
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IMF_EXPORT |
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bool dropFrame () const; |
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IMF_EXPORT |
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void setDropFrame (bool value); |
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IMF_EXPORT |
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bool colorFrame () const; |
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IMF_EXPORT |
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void setColorFrame (bool value); |
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IMF_EXPORT |
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bool fieldPhase () const; |
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IMF_EXPORT |
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void setFieldPhase (bool value); |
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IMF_EXPORT |
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bool bgf0 () const; |
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IMF_EXPORT |
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void setBgf0 (bool value); |
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IMF_EXPORT |
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bool bgf1 () const; |
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IMF_EXPORT |
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void setBgf1 (bool value); |
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IMF_EXPORT |
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bool bgf2 () const; |
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IMF_EXPORT |
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void setBgf2 (bool value); |
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IMF_EXPORT |
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int binaryGroup (int group) const; // group must be between 1 and 8 |
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IMF_EXPORT |
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void setBinaryGroup (int group, int value); |
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//--------------------------------- |
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// Access to packed representations |
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//--------------------------------- |
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IMF_EXPORT |
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unsigned int timeAndFlags (Packing packing = TV60_PACKING) const; |
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IMF_EXPORT |
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void setTimeAndFlags (unsigned int value, |
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Packing packing = TV60_PACKING); |
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IMF_EXPORT |
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unsigned int userData () const; |
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IMF_EXPORT |
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void setUserData (unsigned int value); |
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//--------- |
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// Equality |
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//--------- |
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IMF_EXPORT |
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bool operator == (const TimeCode &v) const; |
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IMF_EXPORT |
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bool operator != (const TimeCode &v) const; |
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private: |
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unsigned int _time; |
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unsigned int _user; |
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}; |
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT |
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#endif
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