|Reference||P-ISO/IEC 13818-1 ed3.0 withdrawn corrigendum||
|Title||Information technology -- Generic coding of moving pictures and associated audio information: Systems|
|Abstract||ISO/IEC 13818-1:2007 specifies the system layer of the coding. It was developed principally to support the combination of the video and audio coding methods defined in ISO/IEC 13818-2 and ISO/IEC 13818-3. The system layer supports six basic functions:
An ISO/IEC 13818-1:2007 multiplexed bit stream is either a Transport Stream or a Program Stream. Both streams are constructed from PES packets and packets containing other necessary information. Both stream types support multiplexing of video and audio compressed streams from one program with a common time base.
The Transport Stream additionally supports the multiplexing of video and audio compressed streams from multiple programs with independent time bases. For almost error-free environments the Program Stream is generally more appropriate, supporting software processing of program information. The Transport Stream is more suitable for use in environments where errors are likely.
An ISO/IEC 13818-1:2007 multiplexed bit stream, whether a Transport Stream or a Program Stream, is constructed in two layers: the outermost layer is the system layer, and the innermost is the compression layer. The system layer provides the functions necessary for using one or more compressed data streams in a system. The video and audio parts of ISO/IEC 13818-1:2007 define the compression coding layer for audio and video data. Coding of other types of data is not defined by ISO/IEC 13818-1:2007, but is supported by the system layer provided that the other types of data adhere to the constraints defined in 2.7.
|Technical Committee||JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information|
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