AndroidVideoSource Class Reference

Video input implementation for Android. More...

#include <AndroidVideoSource.h>

Inheritance diagram for AndroidVideoSource:

Public Member Functions
	AndroidVideoSource ()
bool	getVideoReadyAndroid (const int width, const int height, const int cameraIndex, const bool cameraIsFrontFacing)
virtual bool	open ()
	Opens the video source. More...
size_t	getFrameSize ()
	Returns the size of current frame. More...
void	acceptImage (ARUint8 *ptr)
virtual bool	captureFrame ()
	Asks the video source to capture a frame. More...
virtual bool	close ()
	Closes the video source. More...
virtual const char *	getName ()
	Returns the name of this video source variation. More...
Public Member Functions inherited from VideoSource
virtual	~VideoSource ()
int	getError ()
bool	isOpen ()
	Returns true if the video source is open. More...
bool	isRunning ()
	Returns true if the video source is open and ready to be queried. More...
void	configure (const char *vconf, const char *cparaName, const char *cparaBuff, size_t cparaBuffLen)
	Sets initial parameters which will be used when the video source is opened. More...
ARParamLT *	getCameraParameters ()
	Returns the camera parameters for the video source. More...
int	getVideoWidth ()
	Returns the width of the video in pixels. More...
int	getVideoHeight ()
	Returns the height of the video in pixels. More...
AR_PIXEL_FORMAT	getPixelFormat ()
	Returns the pixel format of the video. More...
ARUint8 *	getFrame ()
	Returns the current frame. More...
int	getFrameStamp ()
	Returns the current frame stamp. More...
bool	updateTexture (Color *buffer)
	Populates the provided color buffer with the current video frame. More...
bool	fastPath ()
bool	updateTexture32 (uint32_t *buffer)
void	updateTextureGL (int textureID)
	Updates the specified OpenGL texture with the current video frame. More...

Protected Attributes
AR2VideoParamT *	gVid
int	gCameraIndex
bool	gCameraIsFrontFacing
Protected Attributes inherited from VideoSource
DeviceState	deviceState
	Current state of the video device. More...
char *	cameraParam
	Camera parameter filename. More...
char *	cameraParamBuffer
size_t	cameraParamBufferLen
ARParamLT *	cparamLT
	Camera paramaters. More...
char *	videoConfiguration
	Video configuration string. More...
int	videoWidth
	Width of the video frame in pixels. More...
int	videoHeight
	Height of the video frame in pixels. More...
AR_PIXEL_FORMAT	pixelFormat
	Pixel format from ARToolKit enumeration. More...
int	m_fastPath
GLenum	glPixIntFormat
GLenum	glPixFormat
GLenum	glPixType
ARUint8 *	frameBuffer
	Pointer to latest frame. Set by concrete subclass to point to frame data. More...
ARUint8 *	frameBuffer2
	For bi-planar formats, pointer to plane 2 of latest frame. Set by concrete subclass to point to frame data. More...
int	frameStamp
	Latest framestamp. Incremented in the concrete subclass when a new frame arrives. More...
int	m_error

Additional Inherited Members
Static Public Member Functions inherited from VideoSource
static VideoSource *	newVideoSource ()
	Returns the correct VideoSource subclass for use on the current platform. More...
Protected Types inherited from VideoSource
enum	DeviceState { DEVICE_CLOSED, DEVICE_OPEN, DEVICE_GETTING_READY, DEVICE_RUNNING }
Protected Member Functions inherited from VideoSource
void	setError (int error)
	VideoSource ()
	The constructor is not public because instances are created using a factory method. More...

Detailed Description

Video input implementation for Android.

On Android, video capture occurs in Java, and the frame data is passed across to the native code using JNI. Therefore, ARToolKit cannot open the camera and initiate video capture in the same way as it does on other platforms. Instead, the video source remains closed until the first frame arrives over JNI.

Constructor & Destructor Documentation

AndroidVideoSource::AndroidVideoSource

(

)

Member Function Documentation

void AndroidVideoSource::acceptImage

(

ARUint8 *

ptr

)

bool AndroidVideoSource::captureFrame ( )

virtual

Asks the video source to capture a frame.

This method must be provided by the subclass.

Returns

true if the video source captured a frame, otherwise false

Implements VideoSource.

bool AndroidVideoSource::close ( )

virtual

Closes the video source.

This method must be provided by the subclass.

Returns

true if the video source was closed successfully, otherwise false.

Implements VideoSource.

size_t AndroidVideoSource::getFrameSize

(

)

Returns the size of current frame.

Returns

Size of the buffer containing the current video frame

const char * AndroidVideoSource::getName ( )

virtual

Returns the name of this video source variation.

This method must be provided by the subclass.

Returns

Name of the video source

Implements VideoSource.

bool AndroidVideoSource::getVideoReadyAndroid	(	const int	width,
		const int	height,
		const int	cameraIndex,
		const bool	cameraIsFrontFacing
	)

bool AndroidVideoSource::open ( )

virtual

Opens the video source.

This method must be provided by the subclass.

Returns

true if the video source was opened successfully, false if a fatal error occured.

Implements VideoSource.

Member Data Documentation

int AndroidVideoSource::gCameraIndex

protected

bool AndroidVideoSource::gCameraIsFrontFacing

protected

AR2VideoParamT* AndroidVideoSource::gVid

protected

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The documentation for this class was generated from the following files:

• include/ARWrapper/AndroidVideoSource.h
• lib/SRC/ARWrapper/AndroidVideoSource.cpp