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diff --git a/iphone/include/ZBarSDK/ZBarCaptureReader.h b/iphone/include/ZBarSDK/ZBarCaptureReader.h
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+++ b/iphone/include/ZBarSDK/ZBarCaptureReader.h
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+//------------------------------------------------------------------------
+//  Copyright 2010 (c) Jeff Brown <spadix@users.sourceforge.net>
+//
+//  This file is part of the ZBar Bar Code Reader.
+//
+//  The ZBar Bar Code Reader is free software; you can redistribute it
+//  and/or modify it under the terms of the GNU Lesser Public License as
+//  published by the Free Software Foundation; either version 2.1 of
+//  the License, or (at your option) any later version.
+//
+//  The ZBar Bar Code Reader is distributed in the hope that it will be
+//  useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+//  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU Lesser Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser Public License
+//  along with the ZBar Bar Code Reader; if not, write to the Free
+//  Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+//  Boston, MA  02110-1301  USA
+//
+//  http://sourceforge.net/projects/zbar
+//------------------------------------------------------------------------
+
+#import <CoreGraphics/CoreGraphics.h>
+#import "ZBarImageScanner.h"
+
+@class AVCaptureVideoDataOutput, AVCaptureOutput;
+@class ZBarCaptureReader, ZBarCVImage;
+
+@protocol ZBarCaptureDelegate <NSObject>
+
+// called when a new barcode is detected.  the image refers to the
+// video buffer and must not be retained for long
+- (void)captureReader:(ZBarCaptureReader *)captureReader
+    didReadNewSymbolsFromImage:(ZBarImage *)image;
+
+@optional
+// called when a potential/uncertain barcode is detected.  will also
+// be called *after* captureReader:didReadNewSymbolsFromImage:
+// when good barcodes are detected
+- (void)captureReader:(ZBarCaptureReader *)captureReader
+      didTrackSymbols:(ZBarSymbolSet *)symbols;
+
+@end
+
+@interface ZBarCaptureReader : NSObject {
+#if !TARGET_IPHONE_SIMULATOR
+    AVCaptureVideoDataOutput *captureOutput;
+    id<ZBarCaptureDelegate> captureDelegate;
+    ZBarImageScanner *scanner;
+    CGRect scanCrop;
+    CGSize size;
+    CGFloat framesPerSecond;
+    BOOL enableCache;
+
+    dispatch_queue_t queue;
+    ZBarImage *image;
+    ZBarCVImage *result;
+    volatile uint32_t state;
+    int framecnt;
+    unsigned width, height;
+    uint64_t t_frame, t_fps, t_scan;
+    CGFloat dt_frame;
+#endif
+}
+
+// supply a pre-configured image scanner
+- (id)initWithImageScanner:(ZBarImageScanner *)imageScanner;
+
+// this must be called before the session is started
+- (void)willStartRunning;
+
+// this must be called *before* the session is stopped
+- (void)willStopRunning;
+
+// clear the internal result cache
+- (void)flushCache;
+
+// capture the next frame after processing.  the captured image will
+// follow the same delegate path as an image with decoded symbols.
+- (void)captureFrame;
+
+// the capture output.  add this to an instance of AVCaptureSession
+@property (nonatomic, readonly) AVCaptureOutput *captureOutput;
+
+// delegate is notified of decode results and symbol tracking.
+@property (nonatomic, assign) id<ZBarCaptureDelegate> captureDelegate;
+
+// access to image scanner for configuration.
+@property (nonatomic, readonly) ZBarImageScanner *scanner;
+
+// region of image to scan in normalized coordinates.
+// NB horizontal crop currently ignored...
+@property (nonatomic, assign) CGRect scanCrop;
+
+// size of video frames.
+@property (nonatomic, readonly) CGSize size;
+
+// (quickly) gate the reader function without interrupting the video
+// stream.  also flushes the cache when enabled.  defaults to *NO*
+@property (nonatomic) BOOL enableReader;
+
+// current frame rate (for debug/optimization).
+// only valid when running
+@property (nonatomic, readonly) CGFloat framesPerSecond;
+
+@property (nonatomic) BOOL enableCache;
+
+@end