人，技术，生活。
1 2 3 4 5 6 7 8 9 | telnet 192.168.1.165 3306 # firewall in ubuntu sudo ufw disable # or found ip changed vi /etc/mysql/mysql.conf.d/mysqld.cnf systemctl restart mysql systemctl status mysql |
refer to:
https://blog.csdn.net/zhangasas/article/details/89432832
1 2 3 4 5 6 7 8 9 10 11 | ffmpeg -f dshow -list_devices true -i dummy # can only play one instance simultaneously ffplay -f dshow -i video="Integrated Webcam" # can play multiple instances ffmpeg -f dshow -i audio="Microphone (Realtek(R) Audio)" out2.wav # record screen sound, # if "Stereo Mix..." is not displayed, activate it in Sound Settings of Windows Control Panel. ffmpeg -f dshow -i audio="Stereo Mix (Realtek Audio)" C:\Users\fatiw\Desktop\Audio\output.mp3 |
refer to:
https://blog.csdn.net/qq_43627907/article/details/124416450
compiled ok in Qt5.15.2.
https://blog.csdn.net/how0723/article/details/77418421
https://zhuanlan.zhihu.com/p/31348306
search 'QAudioOutput' in Qt Creator Examples.
https://blog.csdn.net/jlf521521/article/details/106689503
QT5使用QCustomplot绘制频谱瀑布图并封快速傅里叶变换fft类
https://blog.csdn.net/u013915524/article/details/122288358
https://www.addictivetips.com/windows-tips/record-system-sound-with-ffmpeg-on-windows-10/
Different keywords
1 2 3 | sqlite mysql AUTOINCREMENT AUTO_INCREMENT (datetime('now','localtime')) now() |
refer to:
https://doc.qt.io/qtforpython-6.2/overviews/sql-types.html
https://blog.csdn.net/zhangjianangyou/article/details/117018024
1 | target_link_libraries(exeProj1 dl) |
1 | this@MainActivity |
1 | export FONTCONFIG_PATH=/etc/fonts |
refer to:
https://askubuntu.com/questions/492033/fontconfig-error-cannot-load-default-config-file
1 2 3 4 | ./configure --prefix=`pwd`/installed --with-python=/usr/bin/python3 make -j 16 make install cp -Rf /usr/share/gdb/auto-load `pwd`/installed/share/gdb/ |
1 2 3 4 5 | sudo apt install tigervnc-common sudo apt install tigervnc-standalone-server #vncpasswd vncserver -localhost no -geometry 1280x720 :1 vncserver -list |
Authentication required?
Empty ~/.vnc/passwd and
1 2 | #/etc/xdg/autostart$ sudo vi org.gnome.SettingsDaemon.Color.desktop X-GNOME-Autostart-enabled=false |
then reboot the server.
refer to:
https://blog.csdn.net/Naisu_kun/article/details/123007055
1 | sudo apt install cpupower-gui |
Don't use "-fsanitize=address", use "-fsanitize=leak" instead.