Video file formats are a common way to store digital video data on a computer system. These formats use lossy compression to reduce file size without sacrificing too much quality.
A video file is composed of a container format, such as Matroska, which holds both audio and visual data. The visual data is usually encoded in a video coding format, like VP9, while the audio is encoded in a format like Opus. The container may also contain additional data such as subtitles, metadata, and synchronization data.
There are standardized video file types, which are defined by the container format and the allowed video and audio compression formats. An example of a standardized video file type is the .webm extension.
What is lossy compression?
Lossy compression is a method of reducing file size by compressing data in a way that sacrifices some quality. It is commonly used for media files like videos and images.
What is a container format?
A container format is a type of file that can hold multiple types of data, such as audio and video. It is used for efficient storage and transmission of multimedia data.
What is a codec?
A codec is a software that compresses and decompresses digital media data. It is used to encode and decode audio and video data for storage and transmission.
Video file formats are an essential part of digital media storage and transmission. Understanding how they work can help you to make informed decisions about storing and sharing video files.