Säiliöformaatti

Säiliöformaatti, often translated as container format, is a type of multimedia file that holds different types of data. This data can include video, audio, subtitles, and metadata, all synchronized together. Unlike simple audio or video files, a container format acts as a wrapper, allowing multiple streams of content to be stored and managed within a single file. The actual audio and video streams are encoded using specific codecs, such as H.264 for video or AAC for audio. The container format itself defines how these streams are organized and multiplexed.

Common examples of container formats include MP4 (MPEG-4 Part 14), AVI (Audio Video Interleave), MKV (Matroska), and MOV (QuickTime File Format). Each format has its own characteristics regarding features, compatibility, and the types of codecs it supports. For instance, MKV is known for its flexibility and ability to hold a wide variety of codecs and subtitle formats, making it popular for high-definition video distribution. MP4, on the other hand, is widely supported across various devices and platforms, making it a de facto standard for web video and mobile devices. The choice of container format can impact file size, playback compatibility, and the ability to include advanced features like chapter markers or multiple audio tracks.