A video codec is a type of software that compresses and decompresses video data. This compression process reduces the file size of the video, making it easier to store and transmit. There are many different video codecs available, each with its own advantages and disadvantages. Some of the most common video codecs include H.264, H.265, and VP9.
There are many reasons why you might need to check the video codec of a file. For example, you may need to know the codec in order to play the file on a particular device or software program. You may also need to know the codec in order to convert the file to a different format.