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MPEG-4 AVC/H.264 Compression Update: FRExt and Future Extensions

Explore the updates and future potential of MPEG-4 AVC/H.264 compression technology, including the FRExt version and upcoming activities. Learn about the technical objectives, profiles, and improvements in coding efficiency, robustness, and quality. Stay informed on the current activities like Scalable Video Encoding and potential future developments such as the rumored H.265 codec. Get insights into the evolving landscape of video compression standards. Thank you! Acknowledgement: Gary Sullivan, Co-Chair, "Joint Video Team" ITU-T VCEG | ISO/IEC MPEG.

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MPEG-4 AVC/H.264 Compression Update: FRExt and Future Extensions

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  1. AVC Compression Update:FRExt and future Matthew GoldmanVice President of TechnologyCompression Systems

  2. MPEG-4 AVC / H.264 Version 1ISO/IEC 14496-10 [MPEG-4 Part 10] = ITU-T Rec. H.264 • Primary Technical Objectives • Significant improvement in coding efficiency • High loss/error robustness • Transport independent (network abstraction) • Convey over MPEG-2 Transport, RTP, H.32x, MP4/ISO file formats, MP4 Systems • Low latency capability (but better quality for higher latency) • Exact match decoding • 3 Profiles ( example application) • Baseline  Video conferencing & wireless • Main  Broadcast & Storage (standard & high definition) • Extended  Streaming • Finalized May/July 2003 (tech frozen 12/02) • Products available today

  3. MPEG-4 AVC / H.264 Version 2Fidelity Range Extensions (“FRExt”) • Additional Technical Objectives • Professional applications • > 8b/sample, > 4:2:0 color sampling, • Higher-quality high-resolution video • Alpha plane support (a degree of “object” functionality) • New supplemental information • 4 Profiles • High (4:2:0, 8b)  Brdcst/Storg SD/HD (MP superset) • High 10 (4:2:0, 10b) • High 422 (4:2:2, ≤10b)  Contribution • High 444 (4:4:4 12b) • Finalized July 2004 • High Profile will be in products this year • 4:2:2 when? Hi444 withdrawn and to be replaced!

  4. MPEG-4 AVC / H.264 ExtensionsCurrent Activities • Scalable Video Encoding • Effort launched January 2005 • Core experiments exploring • Context Adaptive Variable Length Coding (CAVLC) • Inter-layer motion prediction • Inter-layer texture prediction • Region of Interests (ROI) • Quantization • High-level syntax • Improved and low-delay Fine Granularity Scalability (FGS) • Replacement 4:4:4 Profile for Hi444 • Better processing elements for color components (Cb/Cr channels) • Improved macroblock coding mode

  5. Future Activities – Rumors? • Heard rumors about a new codec to replace MPEG-4 AVC/H.264? “H.265” • Muddled information taken out of context • Standards activities always investigate future possibilities • There will likely by additional enhancements/amendments to AVC • Just like what occurred with FRExt (v2) and is happening now with SVC, new 4:4:4 Profile

  6. Thank you! Acknowledgement: Gary Sullivan, Co-Chair, “Joint Video Team” ITU-T VCEG | ISO/IEC MPEG

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