The file type (container) is reflected by the file extension – the three characters that appear after the file name. This data is often compressed and written into the container file using a codec. Large amounts of data are required to depict a video signal accurately. The file type is simply the container or package, which can be filled with anything from low-quality web video to ultra-high-quality 3D Dolby digital video. Intro to Video File Formats, File Types, and CodecsĪ video file format is the structure in which information is stored or encoded in a computer file. Audio Sample Rate: How often audio is sampled when converted from an analog source to a digital file.Frame Rate: Speed at which frames are captured and intended for playback.The higher the bitrate, the better the quality.
It’s complicated stuff, especially for those who have trouble displaying high-quality video on show site. The destination of your video can also require special formatting and file sizes. Numerous video file formats exist, and numerous codecs exist within many of the formats. Unfortunately, video has no similar rule and no simple, straightforward guidelines. When Internet file formats for images first came along, users developed a rule of thumb: GIF files for computer-generated images such as illustrations and JPG files for real-life images such as photographs. When in doubt about video file formats, ask your AV partner to ensure your video files display without a hitch.
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