 _  _  ____  ____  __    ____  _  _  __  
( \/ )(  __)(    \(  )  (  __)( \/ )/  \ 
/ \/ \ ) _)  ) D (/ (_/\ ) _)  )  ((  O )
\_)(_/(____)(____/\____/(____)(_/\_)\__/    

      (`-')                     
     _(OO )                     
,--.(_/,-.\ .----.     .----.   
\   \ / (_// .-.  \   /  ..  \  
 \   /   / \ '-'  /  |  /  \  . 
_ \     /_)/ /`.  \  '  \  /  ' 
\-'\   /   \ '-'  /,-.\  `'  /  
    `-'     `---'' '-' `---''   

If you want to convert FLV MOV AVI MKV 3GP WEBM into MP4 then download ffmpeg from official site.
The reason is this full package of FFmpeg support vaious other formats.
如果你要转 FLV MOV AVI MKV 3GP WEBM 去 MP4 就官方ffmpeg, 原因是完整版支持更多格式。
https://ffmpeg.org/download.html#build-windows

Then choose your prefer package, example:
然后选择自己的口味，比如：
https://github.com/BtbN/FFmpeg-Builds/releases    <--ffmpeg-N-N-N-win64-lgpl-shared-vulkan.zip
https://github.com/BtbN/FFmpeg-Builds/releases/download/autobuild-2020-11-29-12-31/ffmpeg-N-100102-gf194cedfe6-win64-lgpl-shared-vulkan.zip

1. Copy the “bin” folder and replace with the folder already existed, if don't undertand look at Step 4 screenshot in https://www.medlexo.ml/
2. You can delete ffplay.exe and ffprobe.exe inside bin folder
3. If you don't want to see the Medlexo message dialogue each time, delete this text file.

1. 复制官方的去本目录的 "bin" 去目录， 不明白看官方第四步骤的截图 https://www.medlexo.ml/
2. 你可以把bin文件夹里的 ffplay.exe 和 ffprobe.exe 删了
3. 不想看见 Medlexo 提示窗口的话就把这个 .txt 删了


