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Slaus
Asked: 2020-02-17 18:03:19 +0800 CST

Terminal window doesn't show my input after using popen() in my program

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In my C++ program I use popen() to read video frames with ffmpeg. When program stops on it's own or I close it with Ctrl+C everything I type into terminal just never appears (but it's there). I do close pipe with pclose(). When I try to build my program again and it fails so gcc prints errors - it fixes itself. Ubuntu 18.04.3, kernel 5.4

Is it terminal window's bug or I misunderstand pipes in some way?

command-line gnome-terminal pipe

1 Answers

  1. Best Answer

    had a similar problem with python Popen solved it by adding -nostdin flag to ffmpeg command https://stackoverflow.com/questions/65329483/python-subprocess-popen-ffmpeg-breaks-terminal-input

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