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include/cinder/CaptureImplAvFoundation.h

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00001 /*
00002  Copyright (c) 2010, The Barbarian Group
00003  All rights reserved.
00004 
00005  Redistribution and use in source and binary forms, with or without modification, are permitted provided that
00006  the following conditions are met:
00007 
00008     * Redistributions of source code must retain the above copyright notice, this list of conditions and
00009     the following disclaimer.
00010     * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
00011     the following disclaimer in the documentation and/or other materials provided with the distribution.
00012 
00013  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
00014  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
00015  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
00016  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00017  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00018  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00019  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00020  POSSIBILITY OF SUCH DAMAGE.
00021 */
00022 
00023 #include "cinder/Cinder.h"
00024 #include "cinder/Surface.h"
00025 #include "cinder/Capture.h"
00026 #import <AVFoundation/AVFoundation.h>
00027 #include <vector>
00028 
00029 namespace cinder {
00030 
00031 class CaptureImplAvFoundationDevice : public Capture::Device {
00032  public:
00033     CaptureImplAvFoundationDevice( AVCaptureDevice * device );
00034     ~CaptureImplAvFoundationDevice();
00035     
00036     bool                        checkAvailable() const;
00037     bool                        isConnected() const;
00038     Capture::DeviceIdentifier   getUniqueId() const { return mUniqueId; }
00039  private:
00040     Capture::DeviceIdentifier   mUniqueId;
00041     AVCaptureDevice         * mNativeDevice;
00042 };
00043 
00044 } //namespace
00045 
00046 @interface CaptureImplAvFoundation : NSObject <AVCaptureVideoDataOutputSampleBufferDelegate> {
00047     AVCaptureSession                * mSession;
00048     CVPixelBufferRef                mWorkingPixelBuffer;
00049     cinder::Surface8u               mCurrentFrame;
00050     NSString                        * mDeviceUniqueId;
00051     
00052     cinder::Capture::DeviceRef      mDevice;
00053     bool                            mHasNewFrame;
00054     bool                            mIsCapturing;
00055     int32_t                         mWidth, mHeight;
00056     int32_t                         mSurfaceChannelOrderCode;
00057     int32_t                         mExposedFrameBytesPerRow;
00058     int32_t                         mExposedFrameHeight;
00059     int32_t                         mExposedFrameWidth;
00060 }
00061 
00062 + (const std::vector<cinder::Capture::DeviceRef>&)getDevices:(BOOL)forceRefresh;
00063 
00064 - (id)initWithDevice:(const cinder::Capture::DeviceRef)device width:(int)width height:(int)height;
00065 - (bool)prepareStartCapture;
00066 - (void)startCapture;
00067 - (void)stopCapture;
00068 - (bool)isCapturing;
00069 - (cinder::Surface8u)getCurrentFrame;
00070 - (bool)checkNewFrame;
00071 - (const cinder::Capture::DeviceRef)getDevice;
00072 - (int32_t)getWidth;
00073 - (int32_t)getHeight;
00074 - (int32_t)getCurrentFrameBytesPerRow;
00075 - (int32_t)getCurrentFrameWidth;
00076 - (int32_t)getCurrentFrameHeight;
00077 
00078 @end