In this chapter, we present the methods and standards requiring how to multiplex and synchronize the MPEG-coded video, audio, and other data into a single bitstream or multiple bitstreams for storage and transmission. INTRODUCTION ISO/IEC MPEG has completed work on the ISO/IEC 11172 and 13818 standards known as MPEG-1 and MPEG-2, respectively, which deal with the coding of digital audio and video signals. Currently, ISO/IEC is working on ISO/IEC 14496 known as MPEG-4 that is object-based generic coding for multimedia applications. As mentioned in the previous chapters, the MPEG-1, 2, and 4 standards are designed as generic standards and as such. | 20 MPEG System Video Audio and Data Multiplexing In this chapter we present the methods and standards requiring how to multiplex and synchronize the MPEG-coded video audio and other data into a single bitstream or multiple bitstreams for storage and transmission. INTRODUCTION ISO IEC MPEG has completed work on the ISO IEC 11172 and 13818 standards known as MPEG-1 and MPEG-2 respectively which deal with the coding of digital audio and video signals. Currently ISO IEC is working on ISO IEC 14496 known as MPEG-4 that is object-based generic coding for multimedia applications. As mentioned in the previous chapters the MPEG-1 2 and 4 standards are designed as generic standards and as such are suitable for use in a wide range of audiovisual applications. The coding part of the standards convert the digital visual audio and data signals to the compressed formats that are represented as binary bits. The task of the MPEG system is focused on multiplexing and synchronizing the coded audio video and data into a single bitstream or multiple bitstreams. In other words the digital compressed video audio and data are all first represented as binary formats which are referred to as bitstreams and then the function of system is to mix the bitstreams from video audio and data together. For this purpose several issues have to be addressed by the system part of the standard Distinguishing different data such as audio video or other data Allocating bandwidth during muxing Reallocating or decoding the different data during demuxing Protecting the bitstreams in error-prone media and detecting the errors Dynamically multiplexing several bitstreams. Additional requirements for the system should include extensibility issues such as New service extensions should be possible Existing decoders should recognize and ignore data they cannot understand The syntax should have extension capacity. It should also be noted that all system-timing signals are included in the bitstream. This is the .
