Panda3D
|
Allows you to open a webcam or other video capture device as a video stream. More...
#include "webcamVideo.h"
Public Member Functions | |
virtual TypeHandle | force_init_type () |
double | get_fps () const |
Returns the camera's framerate. More... | |
const string & | get_pixel_format () const |
Returns the camera's pixel format, as a FourCC code, if known. More... | |
int | get_size_x () const |
Returns the camera's size_x. More... | |
int | get_size_y () const |
Returns the camera's size_y. More... | |
virtual TypeHandle | get_type () const |
MAKE_SEQ (get_options, get_num_options, get_option) | |
void | output (ostream &out) const |
Outputs the WebcamVideo. More... | |
virtual | PT (MovieVideoCursor) open()=0 |
![]() | |
MovieVideo (const string &name="Blank Video") | |
This constructor returns a null video stream — a stream of plain blue and white frames that last one second each. More... | |
const Filename & | get_filename () const |
Returns the movie's filename. More... | |
const SubfileInfo & | get_subfile_info () const |
If the movie is to be loaded from a subfile on disk, this returns the subfile info. More... | |
virtual void | write_datagram (BamWriter *manager, Datagram &dg) |
Writes the contents of this object to the datagram for shipping out to a Bam file. More... | |
![]() | |
TypedWritableReferenceCount (const TypedWritableReferenceCount ©) | |
virtual ReferenceCount * | as_reference_count () |
Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More... | |
void | operator= (const TypedWritableReferenceCount ©) |
![]() | |
TypedWritable (const TypedWritable ©) | |
virtual int | complete_pointers (TypedWritable **p_list, BamReader *manager) |
Receives an array of pointers, one for each time manager->read_pointer() was called in fillin(). More... | |
string | encode_to_bam_stream () const |
Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string. More... | |
bool | encode_to_bam_stream (string &data, BamWriter *writer=NULL) const |
Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More... | |
virtual void | finalize (BamReader *manager) |
Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed. More... | |
UpdateSeq | get_bam_modified () const |
Returns the current bam_modified counter. More... | |
void | mark_bam_modified () |
Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More... | |
void | operator= (const TypedWritable ©) |
virtual bool | require_fully_complete () const |
Some objects require all of their nested pointers to have been completed before the objects themselves can be completed. More... | |
virtual void | update_bam_nested (BamWriter *manager) |
Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates. More... | |
![]() | |
TypedObject (const TypedObject ©) | |
TypedObject * | as_typed_object () |
Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
const TypedObject * | as_typed_object () const |
Returns the object, upcast (if necessary) to a TypedObject pointer. More... | |
int | get_best_parent_from_Set (const std::set< int > &) const |
int | get_type_index () const |
Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More... | |
bool | is_exact_type (TypeHandle handle) const |
Returns true if the current object is the indicated type exactly. More... | |
bool | is_of_type (TypeHandle handle) const |
Returns true if the current object is or derives from the indicated type. More... | |
void | operator= (const TypedObject ©) |
![]() | |
int | get_ref_count () const |
Returns the current reference count. More... | |
WeakReferenceList * | get_weak_list () const |
Returns the WeakReferenceList associated with this ReferenceCount object. More... | |
bool | has_weak_list () const |
Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More... | |
void | local_object () |
This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack. More... | |
void | ref () const |
Explicitly increments the reference count. More... | |
bool | test_ref_count_integrity () const |
Does some easy checks to make sure that the reference count isn't completely bogus. More... | |
bool | test_ref_count_nonzero () const |
Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More... | |
virtual bool | unref () const |
Explicitly decrements the reference count. More... | |
void | weak_ref (WeakPointerToVoid *ptv) |
Adds the indicated PointerToVoid as a weak reference to this object. More... | |
void | weak_unref (WeakPointerToVoid *ptv) |
Removes the indicated PointerToVoid as a weak reference to this object. More... | |
![]() | |
Namable (const string &initial_name="") | |
Namable (const Namable ©) | |
void | clear_name () |
Resets the Namable's name to empty. More... | |
const string & | get_name () const |
bool | has_name () const |
Returns true if the Namable has a nonempty name set, false if the name is empty. More... | |
Namable & | operator= (const Namable &other) |
void | output (ostream &out) const |
Outputs the Namable. More... | |
void | set_name (const string &name) |
Static Public Member Functions | |
static void | find_all_webcams () |
Scans the hardware for webcams, and pushes them onto the global list of all webcams. More... | |
static TypeHandle | get_class_type () |
static int | get_num_options () |
Returns the number of webcam options. More... | |
static void | init_type () |
static | PT (WebcamVideo) get_option(int n) |
![]() | |
static TypeHandle | get_class_type () |
static void | init_type () |
static | PT (MovieVideo) get(const Filename &name) |
![]() | |
static TypeHandle | get_class_type () |
static void | init_type () |
static | PT (TypedWritableReferenceCount) decode_from_bam_stream(const string &data |
![]() | |
static bool | decode_raw_from_bam_stream (TypedWritable *&ptr, ReferenceCount *&ref_ptr, const string &data, BamReader *reader=NULL) |
Reads the string created by a previous call to encode_to_bam_stream(), and extracts the single object on that string. More... | |
static TypeHandle | get_class_type () |
static void | init_type () |
![]() | |
static TypeHandle | get_class_type () |
static void | init_type () |
This function is declared non-inline to work around a compiler bug in g++ 2.96. More... | |
![]() | |
static TypeHandle | get_class_type () |
static void | init_type () |
![]() | |
static TypeHandle | get_class_type () |
static void | init_type () |
Additional Inherited Members | |
![]() | |
static BamReader * | reader = NULL) |
![]() | |
static TypedWritable *const | Null = (TypedWritable*)0L |
Allows you to open a webcam or other video capture device as a video stream.
Definition at line 25 of file webcamVideo.h.
|
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.
References get_num_options().
Referenced by get_num_options().
|
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.
References get_pixel_format().
Referenced by get_size_y(), and output().
|
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().
Referenced by find_all_webcams().
|
inline |
Returns the camera's pixel format, as a FourCC code, if known.
Definition at line 55 of file webcamVideo.I.
References output().
Referenced by get_fps().
|
inline |
Returns the camera's size_x.
Definition at line 22 of file webcamVideo.I.
References get_size_y().
Referenced by output().
|
inline |
Returns the camera's size_y.
Definition at line 32 of file webcamVideo.I.
References get_fps().
Referenced by get_size_x(), and output().
|
inline |
Outputs the WebcamVideo.
This function simply writes the name, size and FPS to the output stream.
Definition at line 66 of file webcamVideo.I.
References get_fps(), get_size_x(), get_size_y(), and output().
Referenced by get_pixel_format(), and output().