about pipe->start

• MartyG

  • October 10, 2019 06:08

  I have not seen pipe -> start used before.  The start instruction usually has a full stop before it, such as pipe.start()

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• Yoichi Hagiwara

  • October 10, 2019 07:00

  SDK record_playback uses pipe-> start?

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• MartyG

  • October 10, 2019 07:50

  The record-playback and multicam examples are the only examples I could find that use '->' instead of '.' and I am not sure why, though it does not seem to prevent the program from running.  What happens please if you use .start in your program instead of ->start?

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• Yoichi Hagiwara

  • October 10, 2019 07:53

  When "." Or "->" is used, the current phenomenon does not change.

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• MartyG

  • October 10, 2019 08:14

  I found a discussion that explains the difference between using -> or a full stop.

  https://github.com/IntelRealSense/librealsense/issues/2587 

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• Yoichi Hagiwara

  • October 10, 2019 08:27

  It seems different from the phenomenon I'm worried about.

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• MartyG

  • October 10, 2019 08:37

  Yes, I was just mentioning it to show that using -> for the pipeline is a valid choice for programs that involve recording streams.

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• Yoichi Hagiwara

  • October 17, 2019 01:25

  The exception no longer occurs when the caller is changed.
  Even if the following program is executed, it is not recorded. Why?

  
  std :: shared_ptr <rs2 :: pipeline> strPipe;
  void rs2start (const char * str) try
  {
  　　Std :: make_shared <rs2 :: pipeline> ();
  　　auto pipe = std :: make_shared <rs2 :: pipeline> ();
  　　strPipe = pipe;

  　　rs2 :: config cfg; // Declare a new configuration
  　　cfg.enable_record_to_file (str);
  　　pipe-> start (cfg); // File will be opened at this point
  }
  catch (const rs2 :: error & e)
  {
  　　std :: cout << "RealSense error calling" << e.get_failed_function () << "(" << e.get_failed_args () << "): \ n" << e.what () << std :: endl;
  }
  catch (const std :: exception & e)
  {
  　　std :: cerr << e.what () << std :: endl;
  }

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• MartyG

  • October 17, 2019 07:36
  • Edited

  Please ask about this on the GitHub site, which is better suited to answer a programming question like this.  Thank you very much!

  https://github.com/IntelRealSense/librealsense/issues 

   

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