ISO 14496-2 PDF

JoJokree See Compression methods for methods and Compression software for codecs. Therefore, implementations for a particular profile ieo as DivX or Nero Digital which are implementations of Advanced Simple Profile and Xvid that implements both profiles are all technically identical on the decoder side. From Wikipedia, the free encyclopedia. MPEG-4 Part 2 has drawn some industry criticism. Coding of Genomic Information Part 3: All articles with dead external links Articles with dead external links from September Articles with permanently dead external links Webarchive template other archives. Examples are mobile phonessome low end video conferencing systems, electronic surveillance systems etc.

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MPEG-4 is still an evolving standard and is divided into a number of parts. Companies promoting MPEG-4 compatibility do not always clearly state which "part" level compatibility they are referring to. Most of the features included in MPEG-4 are left to individual developers to decide whether or not to implement. This means that there are probably no complete implementations of the entire MPEG-4 set of standards.

To deal with this, the standard includes the concept of "profiles" and "levels", allowing a specific set of capabilities to be defined in a manner appropriate for a subset of applications.

Initially, MPEG-4 was aimed primarily at low bit-rate video communications; however, its scope as a multimedia coding standard was later expanded. MPEG-4 is efficient across a variety of bit-rates ranging from a few kilobits per second to tens of megabits per second. MPEG-4 provides the following functions: Improved coding efficiency over MPEG-2 [2] Ability to encode mixed media data video, audio, speech Error resilience to enable robust transmission Ability to interact with the audio-visual scene generated at the receiver Overview[ edit ] MPEG-4 provides a series of technologies for developers, for various service-providers and for end users: MPEG-4 enables different software and hardware developers to create multimedia objects possessing better abilities of adaptability and flexibility to improve the quality of such services and technologies as digital television, animation graphics, the World Wide Web and their extensions.

Data network providers can use MPEG-4 for data transparency. With the help of standard procedures, MPEG-4 data can be interpreted and transformed into other signal types compatible with any available network. The MPEG-4 format provides end users with a wide range of interaction with various animated objects. The MPEG-4 format can perform various functions, among which might be the following: Multiplexes and synchronizes data, associated with media objects, in such a way that they can be efficiently transported further via network channels.

Interaction with the audio-visual scene, which is formed on the side of the receiver. Subsets of the MPEG-4 tool sets have been provided for use in specific applications.

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MPEG-4 Part 2

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