You may need to perform video encoding when Of course, the need to convert videos on Apple’s Mac does not just come out of the blue but rather is driven by various reasons.
The format here comprises the video resolution, the video and audio codecs (H.265, AAC, etc) used, the bitrate, aspect ratio (16:9, 4:3), and the container (MOV, MPEG, MP4, AVI, etc).
A video converter is a program used to transform/change a video from one format to another.