If you want to use the third party external video codecs with MediCap, you have 2 options;
1- To use x264 codec for video compression.
You can download it from the below link. Then install it on your Windows.
https://lerensoft.com/x264vfw_full_44_2851bm_44825.exe
https://sourceforge.net/projects/x264vfw/
Then run MediCap, go to ‘Settings’>’Video and Audio Compression’, check the ‘External Compression Codecs’, check ‘MP4’, select ‘x264vfw - H.264/MPEG-4 AVC codec’, then close the form.
2- To use ffmepg.exe for video compression.
MediCap can use ffmepg.exe to encode video. You can download if from the below link. After download you can copy/paste it into the MediCap's folder.
https://lerensoft.com/ffmpeg.exe
Then run MediCap, go to ‘Settings’>’Video and Audio Compression’, check ‘MediCap custom commands’ and copy/paste below commands into the text area ‘Commands’
ffmpeg.exe -re -i %PIPE% -r 30 -pix_fmt yuv420p -g 60 -c:v libx264 -preset ultrafast -crf 23 -c:a aac -b:a 128k -f mp4 %FILENAME%
If you want to use x265 video encoder please change ‘libx264’ with ‘libx265’
To download ffmpeg.exe with source code please use the below link.
https://lerensoft.com/ffmpeg-master-latest-win64-gpl.zip