JeVois  1.17
JeVois Smart Embedded Machine Vision Toolkit
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jevois-daemon.C
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1 // ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
2 //
3 // JeVois Smart Embedded Machine Vision Toolkit - Copyright (C) 2016 by Laurent Itti, the University of Southern
4 // California (USC), and iLab at USC. See http://iLab.usc.edu and http://jevois.org for information about this project.
5 //
6 // This file is part of the JeVois Smart Embedded Machine Vision Toolkit. This program is free software; you can
7 // redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
8 // Foundation, version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
9 // without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
10 // License for more details. You should have received a copy of the GNU General Public License along with this program;
11 // if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
12 //
13 // Contact information: Laurent Itti - 3641 Watt Way, HNB-07A - Los Angeles, CA 90089-2520 - USA.
14 // Tel: +1 213 740 3527 - itti@pollux.usc.edu - http://iLab.usc.edu - http://jevois.org
15 // ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
16 /*! \file */
17 
18 #include <jevois/Core/Engine.H>
19 #include <exception>
20 
21 //! Main daemon that grabs video frames from the camera, sends them to processing, and sends the results out over USB
22 int main(int argc, char const* argv[])
23 {
24  int ret = 127;
25 
26  try
27  {
28  // Get an engine going, using the platform camera and platform USB gadget driver:
29  std::shared_ptr<jevois::Engine> engine(new jevois::Engine(argc, argv, "engine"));
30 
31  engine->init();
32 
33 #ifndef JEVOIS_PLATFORM_A33
34  // Start streaming now when running on host or JeVois-Pro (since in desktop mode we have no USB host that will
35  // initiate streaming). Note that streamOn() could throw if the default module is buggy or uses an unsupported
36  // camera format, so just ignore any streamOn() exception so we can start the engine's main loop below:
37  try { engine->streamOn(); } catch (...) { }
38 #endif
39 
40  // Enter main loop, if it exits normally, it will give us a return value; or it could throw:
41  ret = engine->mainLoop();
42  }
43  catch (std::exception const & e) { std::cerr << "Exiting on exception: " << e.what(); }
44  catch (...) { std::cerr << "Exiting on unknown exception"; }
45 
46  // Terminate logger:
48 
49  return ret;
50 }
jevois::Engine::streamOn
void streamOn()
Start streaming on video from camera, processing, and USB.
Definition: Engine.C:691
Engine.H
jevois::Engine
JeVois processing engine - gets images from camera sensor, processes them, and sends results over USB...
Definition: Engine.H:381
jevois::Engine::mainLoop
int mainLoop()
Main loop: grab, process, send over USB. Should be called by main application thread.
Definition: Engine.C:884
main
int main(int argc, char const *argv[])
Main daemon that grabs video frames from the camera, sends them to processing, and sends the results ...
Definition: jevois-daemon.C:22
jevois::logEnd
void logEnd()
Terminate log service.
Definition: Log.C:125