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MPEG-4 & Windows Media

MPEG-4 & Windows Media. Dr. Jordi Ribas-Corbera Lead Program Manager, Codecs Digital Media Division Microsoft Corp JordiR@microsoft.com. Overview. Digital Media Introduction Windows Media Technologies and MPEG-4 MPEG-4 status in industry Benefits of MPEG-4 Microsoft efforts in MPEG-4

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MPEG-4 & Windows Media

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  1. MPEG-4 & Windows Media Dr. Jordi Ribas-Corbera Lead Program Manager, Codecs Digital Media Division Microsoft Corp JordiR@microsoft.com

  2. Overview • Digital Media Introduction • Windows Media Technologies and MPEG-4 • MPEG-4 status in industry • Benefits of MPEG-4 • Microsoft efforts in MPEG-4 • Challenges facing MPEG-4 • Microsoft’s position on MPEG-4 • Summary

  3. Digital Media World • Many devices • Wired or wireless • Access from anywhere • Software Integration • Personalized delivery Rich Services

  4. UNICAST, MULTICAST Windows Media Tech Live Content License Server Download & Play Streaming Live Feed On-demand Content Windows Media Encoder Windows Media Services Server Windows Media Player PC, Hand-held, STB Streaming from a WM Server (or Web Server) Stored Content Authoring Playback Distribution

  5. Windows Media Tech and MPEG4 WMT Windows Media Embedded PAK Windows Media Player Windows Media Encoder Windows Media Rights Manager Windows Media Format (ASF + Codecs + DRM) Windows Media SDK Windows Media Services WM Format CODECS:Windows Media Video Windows Media Audio ISO MPEG-4 Video Windows Media Screen

  6. MPEG-4 Status in Industry • Several companies are implementing different parts of MPEG-4 in their products • Apple, Envivio.com, E-vue, Fraunhofer, Ivast, Matsushita, Microsoft, Philips, Sharp, Toshiba, … • First successful interoperable products (developed independently) using MPEG-4 Video • Sharp’s Internet ViewCam and Microsoft’s Windows Media Player, in 1999 • NTT DoCoMo “Eggy” wireless terminal and Microsoft’s Windows Media Encoder and Player, in 2000 • Some tools for creating and authoring MPEG-4 format emerging

  7. Benefits of MPEG-4 • Standards are helpful for interoperability • Follows successful MPEG-1 and MPEG-2 efforts • Improved quality over previous MPEG standards • E.g., MPEG-4 Video (version 1) saves 15-25% of bit rate over MPEG-2 -- according to MPEG-4 tests • Larger set of target applications over previous MPEG standards • From very low to very high bit rates • Multiple codecs for different media (voice, still image, etc.) • Several companies are already implementing parts of the standard

  8. Microsoft Efforts in MPEG-4 • Actively participant since 1995 to help develop MPEG-4 • 100+ contributions  focused on Video coding • Contributed C++ official version of Verification Model (VM) Video software (enc/dec) to ISO • Current MPEG Video Chairman is from Microsoft • Created essential IP used in standard • Participating in MPEG-4 Video Patent Pool (currently there are 19 companies in M4VisualPHG) • Helped make MPEG-4 popular in industry • Supported MPEG-4 Video codec in Windows Media Technologies • Partnered with companies using MPEG-4 Video • Interoperating with products / services from NTT DoCoMo, Sharp, … • Demo

  9. Challenges Facing MPEG-4 • Huge standard  limits interoperability • Video with ~20 profiles (simple, core, main, still texture, streaming, advanced simple, etc.), Graphics (SHNC, FAPs), Audio, Speech, Systems (File Format, Bifs, DMIF) • Many versions: V1, V2, V3, V4 … • MPEG-4 is a large set of tools that companies pick and choose • MPEG-4 video quality not competitive with state of the art in compression • Other emerging Standards such as ITU-T H.26L claim better performance • E.g., see Q15-H-21 in ftp://standard.pictel.com/video-site/9908_Ber, 1999. • Popular internet codecs already providing better quality • E.g., Real Video 8 and Windows Media Video 8 • New video codec effort starting in MPEG • Some features are unproven commercially as of now • E.g., object-based coding, sprites, SHNC, FAPs, Bifs, … • MPEG-4 lacks complete solution for end-to-end delivery • No Digital Rights Management, Screen codec, Networking protocols/Server (with system layer) • Licensing of MPEG-4 not yet clear

  10. Microsoft’s Position on MPEG-4 • Microsoft continues support of MPEG-4 video for interoperability • Microsoft continues to innovate with Windows Media • Customers demand the best quality • State-of-the-art Windows Media Video and Audio codecs • Complete end-to-end solutions • Digital Rights Management • High-performance streaming protocols/server • Specialized codecs such as Windows Media Screen

  11. Summary • Microsoft provides support for MPEG-4 video today for interoperability • MPEG-4 is a broad standard and likely not all components will achieve commercial viability • Other technologies are also needed to meet customers requirements • Customers can choose interoperability or better quality / feature set with Windows Media

  12. Q & A • For more information • http://microsoft.com/windowsmedia • http://msdn.microsoft.com/windowsmedia

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