Tracker object tracks persons in the video stream and collects faces of the same person in one track. More...

Public Member Functions
virtual std::shared_ptr< face_sdk::video_stream >	make_stream (uint32_t track_id)=0
	The function makes a video stream. More...

virtual void	free_stream (const std::shared_ptr< face_sdk::video_stream > &stream)=0
	The function releases stream from tracker object. More...

virtual void	commit_frames ()=0
	The function processes all pushed frames. All events will be raised. More...

virtual uint32_t	version () const =0
	Algorithm version. See Face Tracker versions.

Detailed Description

Tracker object tracks persons in the video stream and collects faces of the same person in one track.

Use face_sdk::make_tracker() functions to instantiate an object of this type.

Warning: This module uses face detector module (see Face Detector), so make sure that your license allows to use face detector. See Licensing.

Usage scenario:

Call one of face_sdk::make_tracker() function to get a face_sdk::tracker instance. You have to pass own face_sdk::itracker_events implementation to be able to handle events from a tracker object.
Call face_sdk::tracker::make_stream(uint32_t) and get a face_sdk::video_stream object for each video to be processed
Decode video and push any number of frames into face_sdk::video_stream. Call face_sdk::video_stream::push_frame(const std::shared_ptr<face_sdk::video_frame> &)
Call face_sdk::tracker::commit_frames() - all pushed frames will be processed in batch. All events will be raised. repeat steps 3 and 4 until a video is ended
Call face_sdk::tracker::free_stream() for each ended video stream

Member Function Documentation

virtual void face_sdk::tracker::commit_frames ( )

pure virtual

The function processes all pushed frames. All events will be raised.

Exceptions

face_sdk::exception See Exceptions handling.

virtual void face_sdk::tracker::free_stream ( const std::shared_ptr< face_sdk::video_stream > & stream )

pure virtual

The function releases stream from tracker object.

Parameters

[in] stream Stream to be released.

Exceptions

face_sdk::invalid_parameter_exception If stream isn't made by tracker object or if stream is nullptr

virtual std::shared_ptr<face_sdk::video_stream> face_sdk::tracker::make_stream ( uint32_t track_id )

pure virtual

The function makes a video stream.

Parameters

[in] track_id Use face_sdk::video_stream::id() to get track_id. Tracker object can't have two streams with the same ids at the same time.

Exceptions

face_sdk::invalid_parameter_exception If tracker object has a stream with the same track_id

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