![]() Videoįirst of all, why using H264 (AVC) standard? The answer is: for the same reason as ultrafast: performance. In other cases, we need the capture from a microphone. Sometimes, this is the audio produced by computer software, and this is the case shown in the command line above. The audio capture depends on the device to be used. The first line after ffmpeg is optional and defines audio capture, two following lines - video capture. ![]() So far, I’ve sorted out the usage only for Windows, but later may need to do the same with Linux. Unfortunately, these methods and corresponding -i “input” options are platform-dependent. Two f “enforce format” options define the methods of capturing video. framerate 24 -crf 20 -preset ultrafast ^ f dshow -i audio= " Stereo Mix (Realtek Audio)" ^
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