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/