/*

File: VideoOutSupport.h

Abstract:   The VideoOutSupport wraps around the AVC VideoServices

        to make it accessable in a Cocoa/OpenGL app.

Version: 1.0

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*/ 

#import <Cocoa/Cocoa.h>

#import <QuickTime/QuickTime.h>

@interface DVTransmitFrameContainer : NSObject 

{

    void* frameRec; //DVTransmitFrame

}

- (id)initWithDVTransmitFrame:(void*)inFrameRec;

- (void*)getDVTransmitFrame;

- (UInt32)frameIndex;

- (char*)frameBuffer;

- (UInt32)frameSize;

@end

@interface VideoOutSupport : NSObject 

{

    NSMutableArray      *freeFrames;

    NSMutableArray      *renderedFrames;

    NSMutableArray      *usedFrames;

    void            *fAVCDeviceController;          //AVCDeviceController

    void            *fAVCDeviceStream;          //AVCDeviceStream

    void            *fTargetAVCDevice;          //AVCDevice

    pthread_mutex_t     queueLock;  // this is the lock to serialize the multithreaded access to the frame queues

    BOOL            isRunning;

    // for frame readback and compression

    NSSize          frameSize;

    char            *frameBuffer;

    UInt32          frameRowBytes;

    Rect            frameBounds;

    ImageSequence       compressorImageSequence;

    PixMapHandle        compressorPixMap;

    ImageDescriptionHandle  compressorImageDescription;

    long            compressionSize;

}

- (id)initWithFrameSize:(NSSize)inFrameSize;

- (void)start;

- (void)stop;

- (void*)getDeviceStream;                   //AVCDeviceStream

- (void)setDeviceStream:(void*)inAVCDeviceStream;       //AVCDeviceStream

- (void*)getTargetDevice;                   //AVCDevice

- (void)setTargetDevice:(void*)inAVCDevice;         //AVCDevice

- (void)compressFrameFromContext:(NSOpenGLContext*)inContext sourceRect:(NSRect)sourceRect;

- (IOReturn)getFrame:(UInt32*)pFrameIndex;

- (void)releaseFrame:(UInt32)inFrameIndex;

- (DVTransmitFrameContainer*)pullNextRenderedFrame;

- (void)initFrameQueues;

- (void)close;

@end