TABLE OF CONTENTS The pseudocode in Figure 10.1 defines the syntax for an MPEG-2 video sequence. In an MPEG-2 bitstream if the first sequence header is followed immediately by the extension_start_code, (0x000001B5), then every sequence header must be followed by the sequence extension. Optional extension and user data follow after the sequence extension. [2]
video_sequence() { /* from ISO 13818-2 6.2.2 */ next_start_code(); /* find next start code */ sequence_header(); /* r/w sequence header */ if (nextbits(32)==extension_start_code) { /* if 0x000001B5, MPEG-2 */ sequence_extension();
