A SeekableImageSourceType for streaming video files.

The VideoSource is used to read images from VideoFiles using the ImageSource framework. Upon setting the --video Parameter, this class will query the nrt::VideoReaderFactory to determine if any VideoReaderBase classes have been registered (see the NRT_REGISTER_VIDEO_READER(CLASSNAME) macro) to parse the given extension. Available video readers can be found in nrt/ImageProc/IO/ImageSource/VideoReaders

Definition at line 50 of file VideoSource.H.

Inheritance diagram for nrt::VideoSource:

Public Member Functions
	VideoSource (std::string const &instanceID="video")
bool const	seek (size_t const framenumber)
	Attempts to seek to the given framenumber.
GenericImage const	in ()
	Returns a GenericImage from its VideoReader::in()
bool const	ok () const
nrt::FrameRange const	frameRange () const
size_t const	nextFrameNumber () const
	Get the next frame number (e.g. the frame that will be returned by the next call to in())
Static Public Member Functions
static std::string const	id ()
	Get the name associated with our --in type.
static std::string const	description ()
	Get a description to show for --help.

Member Function Documentation

bool const nrt::VideoSource::seek ( size_t const framenumber ) [virtual]

Attempts to seek to the given framenumber.

bool const nrt::VideoSource::ok ( ) const

Returns whether or not the next call to in() will return a valid GenericImage by checking the underlying VideoReader::ok()

nrt::FrameRange const nrt::VideoSource::frameRange ( ) const [virtual]

Get the intersection of the video's physical FrameRange, and the requested FrameRange set by the SeekableImageSourceType's parameter

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

Public Member Functions