MPEG decoders and post-processing
Alois M. Bock · Institution of Engineering and Technology eBooks · 2009
This chapter presents the channel change time between MPEG-4 (AVC) bit streams tends to be generally longer than between MPEG-2 bit streams due to larger buffer sizes and lower bit rates. Channel change time between different multiplexes is largely implementation dependent. Once a bit error has been detected by the decoder, the decoding process can only resume at the next slice header. In MPEG-2 each row of macro blocks starts with a slice header, whereas in MPEG-4 (AVC) slice headers are usually only at the start of a picture.