Public Member Functions | Static Public Member Functions | Protected Attributes | Static Protected Attributes
WebcamVideo Class Reference

Allows you to open a webcam or other video capture device as a video stream. More...

#include "webcamVideo.h"

Inheritance diagram for WebcamVideo:
MovieVideo TypedWritableReferenceCount Namable TypedWritable ReferenceCount MemoryBase TypedObject MemoryBase MemoryBase

List of all members.

Public Member Functions

virtual TypeHandle force_init_type ()
int get_fps () const
 Returns the camera's framerate.
int get_size_x () const
 Returns the camera's size_x.
int get_size_y () const
 Returns the camera's size_y.
virtual TypeHandle get_type () const
 MAKE_SEQ (get_options, get_num_options, get_option)
void output (ostream &out) const
 Outputs the WebcamVideo.
virtual PT (MovieVideoCursor) open()=0

Static Public Member Functions

static void find_all_webcams ()
 Scans the hardware for webcams, and pushes them onto the global list of all webcams.
static TypeHandle get_class_type ()
static int get_num_options ()
 Returns the number of webcam options.
static void init_type ()
static PT (WebcamVideo) get_option(int n)

Protected Attributes

int _fps
int _size_x
int _size_y

Static Protected Attributes

static pvector< PT(WebcamVideo)> _all_webcams

Detailed Description

Allows you to open a webcam or other video capture device as a video stream.

Definition at line 25 of file webcamVideo.h.

Member Function Documentation

void WebcamVideo::find_all_webcams ( ) [static]

Scans the hardware for webcams, and pushes them onto the global list of all webcams.

There are several implementations of WebcamVideo, including one based on DirectShow, one based on Video4Linux, and so forth. These implementations are contained in one C++ file each, and they export nothing at all except a single "find_all" function. Otherwise, they can only be accessed through the virtual methods of the WebcamVideo objects they create.

Definition at line 48 of file webcamVideo.cxx.

Referenced by get_num_options().

int WebcamVideo::get_fps ( ) const [inline]

Returns the camera's framerate.

This is a maximum theoretical: the actual performance will depend on the speed of the hardware.

Definition at line 44 of file webcamVideo.I.

Referenced by output().

int WebcamVideo::get_num_options ( ) [static]

Returns the number of webcam options.

An "option" consists of a device plus a set of configuration parameters. For example, "Creative Webcam Live at 640x480, 30 fps" is an option.

Definition at line 78 of file webcamVideo.cxx.

References find_all_webcams().

int WebcamVideo::get_size_x ( ) const [inline]

Returns the camera's size_x.

Definition at line 22 of file webcamVideo.I.

Referenced by output().

int WebcamVideo::get_size_y ( ) const [inline]

Returns the camera's size_y.

Definition at line 32 of file webcamVideo.I.

Referenced by output().

void WebcamVideo::output ( ostream &  out) const [inline]

Outputs the WebcamVideo.

This function simply writes the name, size and FPS to the output stream.

Reimplemented from Namable.

Definition at line 55 of file webcamVideo.I.

References get_fps(), get_size_x(), and get_size_y().

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