TABLE OF CONTENTS This appendix contains comments and errata pertaining to ISO 11172 Part 2: Video. To the best of our knowledge there are no technical corrigenda for MPEG-1 video.
These notes assume that the reader has a copy of the standard available. We have arranged suspected errors and our comments under the respective sections of the video standard. Typographical errors are expressed as "change" lists. We used ISO/IEC 11172-2 First edition 1993-08-01 Part 2: Video, purchased from ANSI in February 1994. Please remember that this appendix has no official significance.
| 1.2 | Identical to subclause 1.2 in Part 1 except for the reference to Part 1 instead of Part 2 in the first normative reference. |
| 1.2 | Change "IEEE Draft Standard P1180/D2 1990" to "IEEE Standard 1180-1990". Change " Specification" to " IEEE Standard Specifications". Change " implementation" to " implementations". |
| 2.1 | Identically the same phrases are defined in subclause 2.1 in Part 1. The definitions are essentially the same except for nomenclature that refers to parts of the standard. |
| 2.2 | Identical to subclause 2.2 in Part 1. |
| 2.4.3.4 | In vbv_delay 90 kHz was chosen as the greatest common multiple of various video and audio sample rates. Note that the R used in the equation is the full precision bit rate. Note also that the 90 kHz means 90,000 and not 90 x 1024. |
| 2.4.3.6 | Change (under coded_block_pattern) "If macroblock_pattern is zero, cbp=0." to "If |
