1. MPEG-4 By Christian Smith MUMT-621 Feb. 5 th 2012

2. What is an MPEG? Designed for internet streaming and synchronizing multimedia streams Motion Picture Experts Group, part of ISO (International Organization for Standardization)

3. What is an MPEG-4? “A method of defining compression/decompression of audio and visual data.” (Wikipedia) – Can also contain all types of media objects, and direct their behavior – Has an Intellectual Property Management and Protection (IPMP) input Designed to scale down to dial up internet, cell phone and PDAs, as well as to stream media on desktops w/ up to 1Mbps The MPEG-4 AAC audio codec is the seed of the MP4 The Internet Streaming Media Alliance was founded in December 2000 to standardize the way MPEG-4 products interact

4. History MPEG begins work on digital video standard in 1990 In 1992 they release MPEG-1 In 1994 MPEG-2 released, 3 is combined w/ it 1998: Parts one and two of MPEG-4 are released for teleconferences and lower frame rates and resolutions, an interactive portion is also released and is now used in PDAs and LCD screened phones In 2000: parts 3,4,5 began developing and now there are 30 parts that can be implemented in MPEG-4 development

5. MPEG-4 Parts 30 standardized parts to MPEG-4 coding, specified by ISO/IEC 14496-1 or ISO/IEC 14496-25 etc. 1- Systems 2- Video 3-Audio 4-Conformance Testing 5-Reference Software 6-Delivery Multimedia Integration Framework 7-Optimised Software for MPEG-4 tools 8-4 on IP framework 9-Reference Hardware Description 10-Advanced Video Coding 11-Scene Description and Application Engine 12-ISO Base Media File Format 13-IPMP Extensions 14-MP4 File Format 15-AVC File Format 16-Animation Framework eXtension (AFX) 17-Streaming Text Format 18-Font Compression and Streamig 19-Synthesized Texture Stream 20-Lightweight Application Scene Representation 21-MPEG-J Extension for rendering 22-Open Font Format 23-Symbolic Music Representation 24-Audio-System Interaction 25-3D Graphics Compression MOdel 26-Audio Conformance 27-3D Graphics Conformance 28-Composite Font 29-Web Video Coding 30-Timed Text and Associated Images in ISO Base Media File Format -as well as Timed Text and Other Visual Overlays in ISO Base Media File Format

6. These parts are open to developers to decide which ones they want to use, and very few access all the parts – This issue is solved through the use of ‘profiles’ and ‘levels’ w/in the MPEG-4 stream A profile includes one or more levels which are a part of the different parts available – In this way a profile and level combination tells a codec builder to only go through the parts needed, limiting the complexity of each compression

7. Bibliography Bouthililier, Larry. The MPEG Video Standards - From 1 To 21. Streaming Media.Com. http://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=64604 (accessed February 4, 2013). http://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=64604 Jacobs, Stevens. Start At The Beginning: An MPEG Timeline. Streaming Media.Com. http://www.streamingmedia.com/article.asp?id=7472 (accessed February 4, 2013). http://www.streamingmedia.com/article.asp?id=7472 Koenen, Rob. MPEG-4. The Moving Picture Experts Group Website. http://mpeg.chiariglione.org/standards/mpeg-4 (accessed February 4, 2013). http://mpeg.chiariglione.org/standards/mpeg-4 Wikipedia Contributors. MPEG-4. Wikipedia, The Free Encyclopedia. http://en.wikipedia.org/wiki/MPEG-4 (accessed February 4, 2013). http://en.wikipedia.org/wiki/MPEG-4 Wikipedia Contributors. Internet Streaming Media Alliance. Wikipedia, The Free Encyclopediahttp://en.wikipedia.org/wiki/Internet_Streaming_Media_Alliance (accessed February 4, 2013).http://en.wikipedia.org/wiki/Internet_Streaming_Media_Alliance Wingate, Cedar. Slide Presentation I: MPEG-4. http://www.music.mcgill.ca/~ich/classes/mumt621_09/presentations/wingate/Sli de1Bib.htm. http://www.music.mcgill.ca/~ich/classes/mumt621_09/presentations/wingate/Sli de1Bib.htm