QTWrapper.h File Reference

Declares an interface adapter for the Quicktime MacOSX SDK. More...

#include "VideoWrapperCommon/VideoWrapperTypes.h"
#include <sys/time.h>

Go to the source code of this file.

Functions
void DSWRAPPER_API DSDECLSPEC	setPrintFunction (printfcn *function)
	Sets a callback function to be used for printing messages.
VWHCamera DSWRAPPER_API DSDECLSPEC	initQTVideo (char *lpCmdLine)
	Intializes a video camera.
int DSWRAPPER_API DSDECLSPEC	closeQTVideo (VWHCamera hCam)
	Close the video camera.
int DSWRAPPER_API DSDECLSPEC	resetQTCamera (VWHCamera hCam, bool bAutomatic)
	Resets all the camera parameters to defaults.
int DSWRAPPER_API DSDECLSPEC	showQTFilterPropertities (VWHCamera hCam)
	Pops up the properties screen associated with this device.
int DSWRAPPER_API DSDECLSPEC	getQTFrame (VWHCamera hCam, unsigned char **ppbFrame, timeval *pTimestamp=NULL)
	Captures a video frame.
void DSWRAPPER_API DSDECLSPEC	releaseQTFrame (VWHCamera hCam)
	Releases the frame so that the space can be freed.
double DSWRAPPER_API DSDECLSPEC	getQTFrameRate (VWHCamera hCam)
	Gets the frame rate of the camera as frames per second.
int DSWRAPPER_API DSWRAPPER_API	getQTVideoWidth (VWHCamera hCam)
	Gets the video width.
int DSWRAPPER_API DSWRAPPER_API	getQTVideoHeight (VWHCamera hCam)
	Gets the video height.
int DSWRAPPER_API DSDECLSPEC	getQTVideoPixelFormat (VWHCamera hCam)
	Gets the pixel format.
int DSWRAPPER_API DSDECLSPEC	getQTOpenGLFormat (VWHCamera hCam)
	Gets the OpenGL format.
int DSWRAPPER_API DSDECLSPEC	getQTVideoDepth (VWHCamera hCam)
	Gets color depth as bits ber pixel.

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Detailed Description

Declares an interface adapter for the Quicktime MacOSX SDK.

For use by VideoWrapper.

See also:

VideoWrapper.h

Copyright 2004-5, Georgia Tech Research Corporation, Atlanta, Georgia 30332-0415 All Rights Reserved

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Function Documentation

int DSWRAPPER_API DSDECLSPEC closeQTVideo (  VWHCamera  hCam  )

Close the video camera. Parameters: hCam  Handle to video camera. Returns: 0 if successful, 1 if failure.

int DSWRAPPER_API DSDECLSPEC getQTFrame (  VWHCamera  hCam, unsigned char **  ppbFrame, timeval *  pTimestamp = NULL )

Captures a video frame. Parameters: hCam  Handle to video camera. [out]  ppbFrame  Pointer to captured video frame. [out]  pTimestamp  Pointer to timestamp. Returns: 0 if successful, 1 if failure.

double DSWRAPPER_API DSDECLSPEC getQTFrameRate (  VWHCamera  hCam  )

Gets the frame rate of the camera as frames per second. Parameters: hCam  Handle to video camera. Returns: The frame rate of the camera.

int DSWRAPPER_API DSDECLSPEC getQTOpenGLFormat (  VWHCamera  hCam  )

Gets the OpenGL format. Parameters: hCam  Handle to video camera. Returns: The OpenGL format.

int DSWRAPPER_API DSDECLSPEC getQTVideoDepth (  VWHCamera  hCam  )

Gets color depth as bits ber pixel. Always returns 24. Parameters: hCam  Handle to video camera. Returns: The color depth.

int DSWRAPPER_API DSWRAPPER_API getQTVideoHeight (  VWHCamera  hCam  )

Gets the video height. Parameters: hCam  Handle to video camera. Returns: The video height.

int DSWRAPPER_API DSDECLSPEC getQTVideoPixelFormat (  VWHCamera  hCam  )

Gets the pixel format. Parameters: hCam  Handle to video camera. Returns: An integer expressing pixel format. See also: pixelFormat.h

int DSWRAPPER_API DSWRAPPER_API getQTVideoWidth (  VWHCamera  hCam  )

Gets the video width. Parameters: hCam  Handle to video camera. Returns: The video width.

VWHCamera DSWRAPPER_API DSDECLSPEC initQTVideo (  char *  lpCmdLine  )

Intializes a video camera. Parameters: [in]  plCmdLine  String used to configure the camera. Takes the form: "iCam size rate colorMode outputMode useBigger", where iCam is number, representing the camera to choose from (starting at 0) size is the desired width (currently, only 160, 320 or 640 allowed) rate is the desired frame rate (IGNORED) colorMode is a string. Specifies the format of the desired mode. Either yuv, rgb, grey8 or grey16 is allowed. Case insensitive. (IGNORED) outputMode is a string, either rgb or bgr. (IGNORED) useBigger is 0 or 1. 1 means a mode of 2x or 4x the size can be used, and scaled to the correct size. (IGNORED) Returns: A VWHCamera (> 0) if successful, 0 if not.

void DSWRAPPER_API DSDECLSPEC releaseQTFrame (  VWHCamera  hCam  )

Releases the frame so that the space can be freed. Parameters: hCam  Handle to video camera.

int DSWRAPPER_API DSDECLSPEC resetQTCamera (  VWHCamera  hCam, bool  automatic )

Resets all the camera parameters to defaults. Parameters: automatic  If true, allow the camera to auto-adust Returns: 0 if successful

void DSWRAPPER_API DSDECLSPEC setPrintFunction (  printfcn *  function  )

Sets a callback function to be used for printing messages. Parameters: function:  ptr to print function

int DSWRAPPER_API DSDECLSPEC showQTFilterPropertities (  VWHCamera  hCam  )

Pops up the properties screen associated with this device. Returns: 0 if successful

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