Parts 1, 2 and 3 of ISO/IEC 13818 specify a multiplex structure and coded representations of audio-visual information. Parts 1,
2 and 3 of ISO/IEC 13818 allow for large flexibility, achieving suitability of ISO/IEC 13818 for many different applications.
The flexibility is obtained by including parameters in the bitstream that define the characteristics of coded bitstreams.
Examples are the audio sampling frequency, picture size, picture rate and bitrate parameters.
This part of ISO/IEC 13818 specifies how tests can be designed to verify whether bitstreams and decoders meet the
requirements as specified in parts 1, 2 and 3 of ISO/IEC 13818. These tests can be used for various purposes such as:
— manufacturers of encoders, and their customers, can use the tests to verify whether the encoder produces valid
bitstreams.
— manufacturers of decoders and their customers can use the tests to verify whether the decoder meets the requirements
specified in parts 1, 2 and 3 of ISO/IEC 13818 for the claimed decoder capabilities.