How to Convert Video File Format in Batch Script

1. Script Without Providing the Directory
2. Convert All the Files With One Batch File

You can convert files from one format to another in a directory. But you can automate this task in the Batch, which allows you to convert all the files into a directory using one Batch script.

This article will convert all the files in .avi format to .mp4 format. Here we use a special keyword, ffmpeg, that allows you to convert from one file format to another.

Also, we will see an example code with an explanation to make it easier to understand.

Script Without Providing the Directory

In the example shared below, we can convert files one by one, and you need to run the script on the directory where the files are. The code for our example will look like the below.

@
FOR i IN *.avi;
DO ffmpeg -i "$i" "${i%.*}.mp4";
DONE

Here we used a for loop to convert all files with format .avi to .mp4, and we used the keyword .ffmpeg that converts the files.

Convert All the Files With One Batch File

This example is a bit more advanced than our previous example. In this example, we will provide the directory of files in our Batch script, and you don’t have to run the script on the directory where the files are.

The code for our example will look like this:

@echo off
PUSHD "D:\YourDirectory\"
FOR %%a IN (*) DO (
  ffmpeg -i "%%~fa" "%%~na.mp3"
)

In the example, we convert all the file formats to the .mp3. Here, the keyword PUSHD is used to include the user-provided directory in the script.

We used the symbol * to indicate all file types.