MP4 is today’s video format of choice.These are some of the most popular video file types: Types of video filesįile formats are relevant to the discussion of how to compress a video file because you may want to convert to a different video file format to save space, or adjust your recording or compression format to account for different file types. For example, videos uploaded to Snapchat are compressed with an H.264/AVC, H.265/HEVC, VP9, or AV1 codec. What is a codec?Ĭodec is a portmanteau for the phrases “encode-decode” and “compressor-decompressor.” A codec is an algorithm that encodes (i.e., records and compresses) and decodes (i.e., opens and decompresses) video and audio footage.Ĭomputers, other devices, and platforms come preloaded with codecs to deliver videos faster. Not only would the file take up a lot of space on your device, but it could take from minutes to hours to edit the video in a video editing software, upload it to a cloud-based storage system like Dropbox or Google Drive, or text it to a friend, for example. However, if this wasn’t the case, an uncompressed video would majorly slow down any action you wanted to take with the video. Many platforms automatically compress videos with codecs. What happens when you don’t compress videos? However, when you compress the video and shrink it to a couple of megabytes, you can upload and send the video more quickly. Most email providers don’t even allow attachments that are that large. Video file compression is important because it reduces prohibitively large video files and makes them easier to share and use.įor example, emailing a 5 GB video to a colleague would take what seems like an eternity to upload and send. Lossless compression keeps all original data intact, while lossy compression erases data that wouldn’t be noticeable to the human eye.Īfter video files are encoded, they are placed in containers that include audio files and metadata, and are ready for distribution. ![]() There are two types of compression methods: lossy and lossless. The lower the bitrate and frame rate, the lower the quality of the video, but the smaller the file size. The higher the bitrate and frame rate of the compressed video, the better the quality of the video, but the larger the file size. The pixels that represent the speaker’s mouth and blinking eyes, however, will need to be rendered in each frame. The background pixels, microphone pixels, and most of the facial pixels don’t change much from frame to frame and can be grouped together. For example, a video of a person speaking into a microphone in front of a static background is easy to compress. Encoding means converting raw video files into a standardized format.Ĭodecs reduce bitrate by grouping similar pixels together. Compression uses encoding algorithms, called codecs, to reduce bits per frame. When you compress a video file, you make it smaller so that it’s easier to use. What is video file compression and how does it work? ![]() What happens when you don’t compress videos.Why video file compression important is.What video file compression is and how it works. ![]() In this guide on how to compress video files, you’ll learn: That’s where knowing how to compress video files comes in handy. ![]() However, in their raw state, video files can be prohibitively cumbersome, which makes them difficult to use. Videos convey messages like no other medium. If a picture is worth a thousand words, a video is worth an infinite number of words.
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