Video file format
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A video file format is a standard for encoding digital video, audio and some auxiliary information (metadata) into a file. In contrast to audio and image formats, most video file formats are containers, allowing for a variety of audio and video codecs to be used. Auxiliary information often includes chronological "sync" data required for correct synchronization between audio and video, as well as subtitles.
Formats
Popular video file formats and codecs that can be used with them are (some of them can be also used with only audio):
- AVI
- Matroska
- all AVI, no hacks
- RealVideo
- Ogg-Theora (open source project)
- OGM
- all AVI, no hacks
- ASF
- WMV
- MPEG-1 and MPEG-2
- MP4 (MPEG4)
- only MPEG-4 content
- QuickTime (MOV)
- RealMedia (RM)
Professional video file formats: