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40 lines
1.1 KiB
Objective-C
40 lines
1.1 KiB
Objective-C
/* FreeJ
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* (c) Copyright 2009 Andrea Guzzo <xant@dyne.org>
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*
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* This source code is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Public License as published
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* by the Free Software Foundation; either version 3 of the License,
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* or (at your option) any later version.
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*
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* This source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* Please refer to the GNU Public License for more details.
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*
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* You should have received a copy of the GNU Public License along with
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* this source code; if not, write to:
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* Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#import <Cocoa/Cocoa.h>
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// GOT From apple example : QTQuartzPlayer
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#pragma mark
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// Frame rate calculator
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#define NumStamps 25
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@interface FrameRate : NSObject
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{
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int _count;
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int32_t _scale;
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double _rate;
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int64_t _stamps[NumStamps + 1];
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NSRecursiveLock *lock;
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}
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-(id)initWithTimeScale:(int32_t)scale;
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-(void)tick:(int64_t)timestamp;
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-(double)rate;
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@end
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