Videofaili

Videofaili is a digital file that stores video data and, optionally, synchronized audio and subtitle tracks. It serves as a portable container for multimedia content, allowing playback on various devices and software. A videofaili represents a discrete unit of stored media that can be copied, edited, archived, or streamed.

Most videofailid are built using a container format, such as MP4, MKV, AVI, MOV, WebM, or FLV. The container defines how video, audio, and subtitle streams are multiplexed and stored together, and it may impose features or limitations related to metadata, chapters, or subtitle handling. File extensions (.mp4, .mkv, .avi, .mov, .webm) often indicate the container type, though not every extension guarantees a particular format.

The actual content inside a videofaili is encoded with one or more codecs. Common video codecs include H.264/AVC, H.265/HEVC, VP9, and AV1, while common audio codecs include AAC, MP3, Opus, and Dolby AC-3. The choice of container, codecs, and encoding settings (such as resolution, frame rate, bit rate, color space, and chroma subsampling) determines the file size, quality, and playback compatibility.

Metadata and subtitle information may be embedded in the videofaili or referenced externally. Metadata can include title, creator, duration, aspect ratio, and codec details, while subtitles can be embedded as tracks or stored as separate files linked to the video.

Videofailid are fundamental in video production, distribution, streaming, and archival. Compatibility depends on playback hardware and software, and licensing or digital rights management may apply to certain files.