What is the role of video codecs in AV streaming?

Video codecs play a crucial role in the Audiovisual (AV) streaming process by processing video files to enable efficient transmission and storage. Specifically, the primary function of a video codec is to compress video data, which reduces the file size and makes it more manageable for streaming over various networks. This compression allows for the practical delivery of high-quality video content without overwhelming bandwidth limitations.

When video is captured, it is often in a large, raw format that can be impractical for distribution. By using codecs, the data is encoded into a format that reduces the amount of information needed to represent the original video accurately. During playback, the codec will then decompress the video file, reconstructing it to present the viewer with a visually appealing image that is as close to the original as possible.

Other functions that could be related to AV streaming, such as enhancing audio quality, managing streaming bandwidth, or synchronizing audio and video signals, are distinct processes that fall outside the specific role of video codecs. While these aspects are important in the overall streaming experience, they do not pertain to the primary purpose of codecs in handling video data. Instead, codecs are fundamental in ensuring that the video content can be transmitted effectively while balancing quality and file size.