|
Acronym |
Full Name |
Purpose |
Description |
Reference |
|
AVI |
Audio Video Interleaved |
Storage and retrieval of moving pictures |
AVI is very easy to work with because of its low CPU usage for playback and encoding. AVI files can be converted to other file formats. AVI has quality near MPEG but at much larger file sizes. |
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MPEG |
Moving Picture Expert Group |
Encode, compress and distribute video and associated audio information |
MPEG-1 is the standard for storage and retrieval of moving pictures and audio on storage media. MPEG-2, the digital television standard, strives for a higher resolution—up to 100 Mbps—that resembles the digital video studio standard CCIR 601 and the video quality needed in HDTV. MPEG-4 encodes multimedia production, distribution, and content access. It is a format for multimedia presentations MPEG-21 describes a general multimedia framework. |
MPEG-1: ISO/IEC IS 11172 MPEG-2: ISO/IEC IS 13818 MPEG-4: ISO/IEC JTC1/SC29/WG11 N2323, MPEG-4 Overview (Dublin version) |
|
MPEG-7 |
Moving Picture Expert Group – Multimedia Content Description Interface |
Encode annotations of audio and video |
MPEG-7 aims to standardize a core set of quantitative measures of audio-visual features, called Descriptors (D), and structures of descriptors and their relationships, called Description Schemes (DS) in MPEG-7 parlance. MPEG-7 will also standardize a language - the Description Definition Language (DDL) - that specifies Description Schemes to ensure flexibility for wide adoption and a long life. |
http://www.chiariglione.org/mpeg/standards/mpeg-7/mpeg-7.htm |
|
QuickTime |
QuickTime |
Create, display, edit, copy, and compress movies and movie data in most of the same ways that they currently manipulate text and still-image graphics. |
QuickTime is composed of three distinct elements: the QuickTime Movie file format specifies a standard means of storing media compositions, the QuickTime Media Abstraction Layer specifies how software tools and applications access the set of media support services built into QuickTime, and a set of QuickTime media services. QuickTime supports other media file formats such as Microsoft formats (AVI, WAV), MPEG (audio and video layers), DVCam, and still images (GIF,JPEG,BMP and Adobe Photoshop files). |
http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm |
|
RealVideo |
RealVideo |
Real-time
video delivery over the |
Compressed format suitable for streaming over the Internet or intranets. A RealVideo clip uses the file extension .rm and typically includes an embedded soundtrack encoded as RealAudio. Like RealAudio, RealVideo uses a "lossy" compression scheme that discards parts of the source file during encoding. |