FFMPEG Command to Convert AVI Video File to MP4 Video File in Windows 10 Full Project For Beginners

 

 

Depending on how your original file was encoded, it may not be possible to keep the file size.

This command should keep frame sizes and rates intact while making an mp4 file:

ffmpeg -i infile.avi youroutput.mp4

And this command will give you information about your input file – the frame size, codecs used, bitrate, etc.:

ffmpeg -i infile.avi

You can also play with the acodec and vcodec options when you generate your output. Remember also that mp4 and avi files can use various codecs and your mileage may vary according to which codec you pick.

 

 

if you run the following command:

ffmpeg -i input.avi -y output.mp4

In such case ffmpeg re-encodes elementary streams within input.avi (cahnge containers and re-encode is the default mode of ffmpeg). It’s worth noticing that re-encoding might deteriorate visual and/or hearing quality.

Therefore, it’s recommended to disable re-encoding by “c:v copy c:a copy” codec options:

ffmpeg -i input.avi -c:v copy -c:a copy -y output.mp4

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